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Sales Information Phone:(425) 353-3010 Fax: (425) 353-4030 SVRSA2800S – 4.0 E-mail: vptsales@vptpower.com Web: www.vptpower.com Page 1 SVRSA2800S SERIES SPACE QUALIFIED HYBRID DC-DC CONVERTERS SVRSA Series DC-DC Converter Models Available Input: 18 V to 40 V continuous, 50 V transient 6 W, single output of 3.3 V, 5 V, 12 V, 15 V Qualified to MIL-PRF-38534 Class H and Class K Designed for TOR Compliance

1.0 DESCRIPTION

The SVRSA Series of space qualified DC-DC converters is specifically designed for the harsh radiation environment of space applications and is designed in accordance with Aerospace TOR requirements. Performance is guaranteed through the use of hardened semiconductor components, radiation lot acceptance testing (RLAT) of non-hardened components, and analysis. The SVRSA Series has been characterized for Total Ionizing Dose (TID) performance including Enhanced Low Dose Rate Sensitivity (ELDRS) and for Single Event Effects (SEE) according to VPT’s DLA-approved Radiation Hardness Assurance (RHA) plan per MIL-PRF-38534, Appendix G, Level R. Characterization is performed at both the component level and at the SVRSA Series hybrid converter level. The SVRSA Series of DC-DC converters is radiation hardened and suited for use in low Earth orbit (LEO), medium Earth orbit (MEO), geostationary orbit (GEO), deep space, and launch vehicle programs.

1.1 FEATURES

  • Up to 6 W output power
  • Wide input voltage range: 18 V to 40 V plus 50 V transient
  • Continuous operation over full military temperature range of -55 °C to +125 °C with no power derating
  • Very low output noise
  • Radiation immune magnetic feedback circuit
  • No use of optoisolators
  • Undervoltage lockout
  • Current limit protection / short circuit protection

1.2 SPACE LEVEL CHARACTERIZATIONS

  • Guaranteed TID performance to 100 krad(Si) including ELDRS
  • SEE performance to 85 MeV/mg/cm2. Transients are fully characterized for cross section and magnitude
  • Worst-case analysis, stress, radiation, reliability reports available

1.3 MANUFACTURING AND COMPLIANCE

  • Qualified to MIL-PRF-38534 Class H and Class K, DLA SMD 5962-15217
  • Available compliant to MIL-HDBK-1547 and Aerospace TOR component level element evaluation
  • MIL-PRF-38534 element evaluated components
  • MIL-STD-461 C/D/E/F when used with appropriate VPT EMI filter
  • Manufactured in a MIL-PRF-38534 Class H and Class K facility
  • MIL-STD-883
  • ISO-9001

1.4 PACKAGING

  • Low-profile: 2.00” x 1.130” x 0.355”
  • Max weight: 27 g
  • Industry standard pinout
  • Precision projection-welded hermetic metal case
  • Flanged and Non-flanged versions available

1.5 SIMILAR PRODUCTS AND ACCESSORIES

  • SVSA 6 W space qualified DC-DC converter, 30 krad(Si)
  • Custom versions available
  • EMI filters
  • Non-isolated, space qualified point of load converters
  • Use with Thermal Pad TP-002 Products and reports described in this datasheet are subject to all export license restrictions and regulations which may include but are not limi ted to ITAR (International Traffic in Arms Regulations) and the Export Administration and Foreign Assets Control Regulations. Furth er restrictions may apply. Contact VPT sales for details.

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2.0 DIAGRAMS

2.1 BLOCK DIAGRAM

2.2 CONNECTION DIAGRAM

3.0 SPECIFICATIONS

3.1 ABSOLUTE MAXIMUM RATINGS

Input Voltage (Continuous): -0.5 V to 40 V Operating Temperature (Full Load): -55 °C to +125 °C Input Voltage (Transient, 1 second): -0.5 V to 50 V Storage Temperature: -65 °C to +150 °C ESD Rating per MIL-PRF-38534: 1C Lead Solder Temperature (10 seconds): 270 °C UNDER VOLTAGE SHUTDOWN PRIMARY HOUSEKEEPING SUPPLY PWM CONTROL VOLTAGE AND CURRENT AMPLIFIERS SECONDARY HOUSEKEEPING SUPPLY 28VIN INCOM Rs1 T1 D1 Rs2 +VOUT OUTCOM INH FEEDBACK MAGNETIC INCOM INH 8 28VIN 4+VOUT OUT COM LOAD +-28 Vdc 228VOUT OUTCOM 1 28VIN INCOM SVRMH28 EMI FILTER SVRSA2800S DC-DC CONVERTER CASE

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3.2 PERFORMANCE SPECIFICATIONS

Tcase = -55 °C to +125 °C, Vin = +28 V ± 5%, Full Load, Unless Otherwise Specified SVRSA283R3S SVRSA2805S Parameter Conditions Min Typ Max Min Typ Max Units INPUT Voltage Continuous 18 28 404 18 28 404 V Transient, 1 sec2 - - 50 - - 50 V Current INH < 1.5 V - 4 6 - 4 6 mA No Load - 25 60 - 25 60 mA Ripple Current 20 Hz to 10 MHz - 30 50 - 30 60 mApp Undervoltage Lockout Turn-On 14 - 17.8 14 - 17.8 V Turn-Off2 13 - 17.5 13 - 17.5 V OUTPUT STATIC Power 0 - 4.5 0 - 5 W Current 0 - 1.36 0 - 1 A Ripple Voltage 20 Hz to 10 MHz - 20 60 - 20 60 mVpp Line Regulation Vin = 18 V to 40 V - 0.1 10 - 0.1 10 mV Load Regulation No Load to Full Load - 5 50 - 3 50 mV Load Fault Power Dissipation Overload2 - - 4 - - 4 W Short Circuit - - 4 - - 4 W OUTPUT DYNAMIC Load Step, Half to Full Load Output Transient - 100 200 - 70 200 mVpk Recovery1 - 220 500 - 90 400 µs Line Step2, Vin = 18V to 40 V Output Transient - 90 200 - 70 200 mVpk Recovery1 - 200 500 - 80 400 µs Turn-On, Vin = 0 to 28 V Delay - 11 20 - 10 20 ms Overshoot - 0 15 - 0 25 mVpk FUNCTION INH Pin Input2 Output Inhibited 0 - 1.5 0 - 1.5 V INH Pin Open Circuit Voltage2 Output Enabled 9 12.5 14 9 12.5 14 V GENERAL Efficiency 62 70 - 65 75 - % Capacitive Load2 - - 500 - - 500 µF Switching Frequency 350 450 500 350 450 500 kHz Isolation 500 V DC, Tcase = 25 °C 100 - - 100 - - MΩ Weight Non-flanged package option - - 24 - - 24 g Flanged package option - - 27 - - 27 g MTBF (MIL-HDBK-217F) SF @ Tcase = 55 °C - 2.82 - - 2.82 - MHr POST-RAD END-OF-LIFE LIMITS3 Input Ripple Current - - 110 - - 115 mA Output Ripple Voltage - - 70 - - 60 mVpp Output Voltage Tcase = -55 °C to +125 °C 3.25 - 3.35 4.9 - 5.1 V 1. Time for output voltage to settle within 1% of steady-state value 2. Verified by initial electrical design verification. Post design verification, parameter shall be guaranteed to the limits specified 3. End-of-Life performance includes aging and radiation degradation and is within standard limits except where noted 4. 37.5 V Max continuous to be compliant to MIL-HDBK-1547 and Aerospace TOR

Sales Information Phone:(425) 353-3010 Fax: (425) 353-4030 SVRSA2800S – 4.0 E-mail: vptsales@vptpower.com Web: www.vptpower.com Page 4 SVRSA2800S Series Tcase = -55 °C to +125 °C, Vin = +28 V ± 5%, Full Load, Unless Otherwise Specified SVRSA2812S SVRSA2815S Parameter Conditions Min Typ Max Min Typ Max Units INPUT Voltage Continuous 18 28 404 18 28 404 V Transient, 1 sec2 - - 50 - - 50 V Current INH < 1.5 V - 4 6 - 4 6 mA No Load - 30 60 - 30 60 mA Ripple Current 20 Hz to 10 MHz - 30 50 - 30 50 mApp Undervoltage Lockout Turn-On 14 - 17.8 14 - 17.8 V Turn-Off2 13 - 17.5 13 - 17.5 V OUTPUT STATIC Voltage Tcase = 25 °C 11.88 12 12.12 14.85 15 15.15 V Tcase = -55 °C to +125 °C 11.82 12 12.18 14.775 15 15.225 V Power 0 - 6 0 - 6 W Current 0 - 0.5 0 - 0.4 A Ripple Voltage 20 Hz to 10 MHz - 10 50 - 10 50 mVpp Line Regulation Vin = 18 V to 40 V - 0.1 10 - 0.1 10 mV Load Regulation No Load to Full Load - 1 50 - 2 50 mV Load Fault Power Dissipation Overload2 - - 4 - - 4 W Short Circuit - - 3 - - 3 W OUTPUT DYNAMIC Load Step, Half to Full Load Output Transient - 140 350 - 90 250 mVpk Recovery1 - 70 300 - 0 300 µs Line Step2, Vin = 18V to 40 V Output Transient - 190 450 - 150 400 mVpk Recovery1 - 150 500 - 50 300 µs Turn-On, Vin = 0 to 28 V Delay - 10 20 - 10 20 ms Overshoot - 0 50 - 0 50 mVpk FUNCTION INH Pin Input2 Output Inhibited 0 - 1.5 0 - 1.5 V INH Pin Open Circuit Voltage2 Output Enabled 9 11 13 9 11 13 V GENERAL Efficiency 71 80 - 72 80 - % Capacitive Load2 - - 165 - - 165 µF Switching Frequency 350 450 500 350 450 500 kHz Isolation 500 V DC, Tcase = 25 °C 100 - - 100 - - MΩ Weight Non-flanged package option - - 24 - - 24 g Flanged package option - - 27 - - 27 g MTBF (MIL-HDBK-217F) SF @ Tcase = 55 °C - 2.82 - - 2.82 - MHr POST-RAD END-OF-LIFE LIMITS3 Input Ripple Current - - 75 - - 70 mA Output Ripple Voltage - - 70 - - 65 mVpp Output Voltage Tcase = -55 °C to +125 °C 11.7 - 12.3 14.63 - 15.37 V 1. Time for output voltage to settle within 1% of steady-state value 2. Verified by initial electrical design verification. Post design verification, parameter shall be guaranteed to the limits specified 3. End-of-Life performance includes aging and radiation degradation and is within standard limits except where noted 4. 37.5 V Max continuous to be compliant to MIL-HDBK-1547 and Aerospace TOR

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4.0 PERFORMANCE CURVES

4.1.1 SVRSA283R3S Efficiency (Typical, 25 °C) 4.1.2 SVRSA2805S Efficiency (Typical, 25 °C) 4.1.3 SVRSA2812S Efficiency (Typical, 25 °C) 4.1.4 SVRSA2815S Efficiency (Typical, 25 °C) 0 1 2 3 4 5 Efficiency (%) Output Power (W) 18 V 28 V 37.5 V 0 1 2 3 4 5 Efficiency (%) Output Power (W) 18 V 28 V 37.5 V 0 1 2 3 4 5 6 Efficiency (%) Output Power (W) 18 V 28 V 37.5 V 0 1 2 3 4 5 6 Efficiency (%) Output Power (W) 18 V 28 V 37.5 V

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5.0 MECHANICAL OUTLINES AND PINOUT

Non-Flanged Package Option: 1. Tolerances are +0.005” unless otherwise stated 2. Case temperature is measured on the center of the baseplate surface 3. Materials: Case (Steel, gold over nickel plated); Cover (Steel, nickel plated); Pin (Copper-cored alloy 52, gold over nickel plated); Pin Seals (Glass) Pin Function Pin Function Pin Function

1 INH 4 +VOUT 7 INCOM

2 NC 5 NC 8 28VIN

3 OUTCOM 6 CASE

1.460in 37.08mm MAX 1.130in 28.70mm MAX PIN 1 0.330in 8.38mm MAX 0.250in±0.015 6.35mm±0.38 8X PIN 0.030in±0.002 0.76mm±0.05 7X SEAL 0.080in±0.002 2.03mm±0.05 0in 0mm 0.300in 7.62mm 0.500in 12.70mm 0.700in 17.78mm 0.900in 22.86mm 0.205in 5.21mm 0in 0mm 0.160in 4.06mm 0.800in 20.32mm 1 2 3 4 5 678 BASEPLATE SURFACE

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5.0 MECHANICAL OUTLINES AND PINOUT (CONTINUED)

Flanged Package Option: 1. Tolerances are +0.005” unless otherwise stated 2. Case temperature is measured on the center of the baseplate surface 3. Mounting holes are not threaded. Recommended fastener is 4 -40 3. Materials: Case (Steel, gold over nickel plated); Cover (Steel, nickel plated); Pin (Copper-cored alloy 52, gold over nickel plated); Pin Seals (Glass) Pin Function Pin Function Pin Function 1.460in 37.08mm MAX 1.730in 43.94mm 1.130in 28.70mm MAX 0.128in 3.25mm R0.130in 3.30mm 2.000in 50.80mm MAX PIN 1 0.355in 9.02mm MAX 0.250in±0.015 6.35mm±0.38 0.047in + 0.003 0.005 1.19mm + 0.08 0.13 8X PIN 0.030in±0.002 0.76mm±0.05 7X SEAL 0.080in±0.002 2.03mm±0.05 0in 0mm 0.345in 8.76mm 0.300in 7.62mm 0.500in 12.70mm 0.700in 17.78mm 0.900in 22.86mm 0in 0mm 0.160in 4.06mm 0.400in 10.16mm 0.800in 20.32mm BASEPLATE SURFACE 1 2 3 4 5 678

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6.0 TECHNICAL NOTES

Please note that many of these functions are also demonstrated in detail on the VPT website in the form of technical video labs.

6.1 GENERAL INFORMATION

6.1.1 Topology Description

The SVRSA2800S Series is an isolated single-output flyback converter. It operates over a wide input voltage range and provides a tightly regulated positive output voltage with respect to the OUTCOM pin. Feedback isolation is accomplished using VPT’s proprietary magnetic feedback technology. The converter regulates with zero load, and no minimum load is required.

6.1.2 External Components

The SVRSA2800S Series is designed to operate stand-alone in most applications. It does not require any external components for proper operation or to meet the datasheet specifications. Input and output L-C filters are provided internally for low ripple and noise. To further reduce output ripple and noise, a small ceramic capacitor, 1 µF to 10 µF, can be added at the output. Most application specific ripple requirements can be met with the addition of output capacitors alone. External output capacitance can be added up to the maximum listed in Section 3.2.

6.1.3 Source Impedance

The impedance of the 28 V input source can interact with the DC-DC converter and can affect performance. High source impedance is often caused by a long input cable or components added in series with the input. Source resistance will cause a DC voltage drop as the converter draws DC input current. This voltage drop is simply the cable resistance multiplied by the input current at low line. The voltage drop and the actual voltage at the input to the converter will determine the minimum source voltage at which the converter will operate. A high source inductance can interact with the feedback control loop of the converter. VPT’s EMI filters will usually isolate the source and eliminate this problem. In some cases, additional input capacitance will be needed to stabilize the system.

6.1.4 Output Configurations

Since the converter is isolated, the output can be configured as a positive or negative voltage. For example, the SVRSA2812S can provide +12 V DC referenced to OUTCOM or -12 V referenced to +VOUT. The outputs of multiple converters can be stacked in series to provide higher voltages. When outputs of multiple modules are stacked, they naturally share the load. For example, two SVRSA2812S converters can be stacked to provide a 24 V output at 12 W.

6.2 FUNCTION DESCRIPTIONS

6.2.1 On/Off Control (Inhibit)

The INH (Inhibit) pin is a primary-side control pin referenced to INCOM. The INH pin must be driven using an open collector or open drain configuration. Pulling the INH pin low disables the converter output, removes bias voltage from internal control circuitry, and puts the converter in a state of minimum input current draw. Leaving INH open enables the output, allowing the converter to operate normally. The pin must be pulled below 1.5 V to disable the output. An optional capacitor from INH to INCOM may be used to delay turn-on. The INH pin should be left open if not used. INCOM 7 INH 1 28VIN OPTIONAL CAPACITOR BIAS 12V 10K

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6.3 PROTECTION FEATURES

6.3.1 Input Undervoltage Lockout

The SVRSA2800S Series provides input undervoltage lockout protection. For input voltages below the turn-on voltage, the converter will remain off, drawing minimal current from the source. When the input voltage exceeds the turn-on voltage, the converter will start. The lockout circuit is designed to tolerate slow ramping input voltage waveforms. VPT’s proprietary magnetic feedback technology provides bias voltage to all secondary control circuits and control amplifiers before the output starts, ensuring a well-controlled start up sequence.

6.3.2 Output Soft Start

The SVRSA2800S Series utilizes an output soft-start function to ramp the output in a controlled manner, eliminating output voltage overshoot and limiting inrush current at turn on. A voltage-mode soft-start ensures the output waveform remains consistent regardless of changes in the load current. The output rise time is approximately 8 ms. The soft-start function is active whether the module is turned on with an application of input voltage or from release of the inhibit pin. Under normal conditions, current drawn from the source during turn-on will not exceed the full-load input current. The turn-on delay time is specified from the application of input voltage (or release of the inhibit pin) until the output reaches 90% of its final value.

6.3.3 Output Overcurrent Protection

The SVRSA2800S Series provides output overcurrent and output short circuit protection. During a load fault condition, a constant output current control circuit reduces the converter duty cycle to limit the output current to approximately 125% its rated value. The converter will continue to provide constant current into any overload or short circuit condition. This feature allows the converter to start into any capacitive load. Recovery is automatic and immediate upon removal of the fault condition. Sustained short circuit or overload operation can cause excessive power dissipation. Care should be taken to control the operating temperature of the converter in this condition.

6.4 THERMAL CONSIDERATIONS

The SVRSA2800S Series is rated for full power operation at 125 °C. Operation above 125 °C is allowed at reduced power. Specifically, the output power should be derated linearly from full power at 125 °C to half power at 130 °C and to zero power at 135 °C. The operating temperature of the converter is specified on the baseplate of the converter. The converter is designed to be conduction- cooled, with the baseplate mounted to a heat sink, chassis, PCB or other thermal surface. The internal power dissipating components are mounted to the baseplate of the converter and all heat flow is through the baseplate and mounting flanges. The lid of the converter does not provide a good thermal path. The hybrid DC-DC converter contains many semiconductor components. The maximum temperature rise from junction to case is 14 °C at full load.

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6.5 RADIATION HARDNESS ASSURANCE

VPT takes a conservative approach to radiation testing to ensure product performance in a space environment. VPT’s DLA-approved Radiation Hardness Assurance (RHA) plan documents VPT’s processes and procedures for guaranteeing the performance of VPT products under various environmental conditions in space including Total Ionizing Dose (TID) and Single-Event Effects (SEE). Additionally, Enhanced Low Dose-Rate Sensitivity (ELDRS) effects are considered for all bipolar ICs used in the hybrid. Hardness is guaranteed by a combination of both hybrid-level characterization and Radiation Lot Acceptance Testing (RLAT) of all sensitive semiconductor piece-parts used within the hybrid.

6.5.1 Radiation Test and Performance Levels

Radiation Environment Piece Part RLAT Hybrid-Level Characterization Total Ionizing Dose (TID) High Dose Rate (HDR) 100 krad(Si) 100 krad(Si) Low Dose Rate (LDR) 1100 krad(Si) 100 krad(Si) Single-Event Effects (SEE) Destructive (SEB, SEGR, SEL) Not applicable ≥ 85 MeV/mg/cm2 2Non-Destructive (SET, SEU, SEFI) Not applicable ≥ 85 MeV/mg/cm2 1. Piece-part LDR screening performed only on potentially ELDRS parts (bipolar ICs). 2. The PWM IC used in this part is suceptible to a non-destructive SEFI/SEL event with threshold LET ≥ 42 MeV/mg/cm2. The SEFI manifests as a shutdown for up to 1 second followed by a controlled soft-start of the converter. The non-destructive SEL manifests itself as a shutdown requiring user intervention to recover by cycling either the input power or the inhibit function. At the worst -case 125 °C and 85 MeV/mg/cm2, the cross-section of these events is 3.18 x 10-6 cm2. Full details available in the Radiation Test Report.

6.5.2 RHA Plan Summary

Test RHA Plan for SVR Series Isolated DC-DC Converters Total Ionizing Dose (TID): Sensitive semiconductor components undergo RLAT to 100 krad(Si) per MIL-STD-883 Method 1019. Converters are characterized to 100 krad(Si). Enhanced Low Dose Rate Sensitivity (ELDRS): All bipolar linear ICs are characterized for ELDRS and tested in accordance with MIL-STD-883 test method 1019 section 3.13 Single Event Effects (SEE): Converters are characterized to LET ≥ 85 MeV/mg/cm2 for both catastrophic events (SEL, SEB, SEGR) and functional interrupts (SEFI) under heavy ion exposure. Converters are also characterized for cross-section and magnitude of output transients (SET) for at least 3 different LET levels. Radiation Lot Acceptance Testing (RLAT): All production lots of sensitive semiconductor components undergo RLAT for TID at HDR and/or LDR as appropriate per part type.

6.5.3 RHA Designators available on SMD

The SVRSA2800S series converters are available on SMD with RHA level R. See section 8.0 for full SMD number information.

6.5.4 Supporting Documentation Available (Contact Sales)

  • Radiation Hardness Assurance Plan: DLA-approved RHA plan covering TID, SEE, and ELDRS
  • Worst-Case Analysis Report: Detailed worst-case analysis including electrical stress/derating limits and guaranteed circuit performance post-radiation and end of life
  • Radiation Test Summary Report: Overview of piece-part RLAT and hybrid characterization for all guaranteed environments. Also includes SEE cross-section data.
  • Reliability Report: MTBF report based on MIL-HDBK-217 reliability calculations.
  • Thermal Analysis Report: Component temperature rise analysis and measurement results.

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7.0 ENVIRONMENTAL SCREENING

100% tested per MIL-STD-883 as referenced to MIL-PRF-38534. Contact sales for more information concerning additional environmental screening and testing options. VPT Inc. reserves the right to ship higher screened or SMD products to meet orders for lower screening levels at our sole discretion unless specifically forbidden by customer contract. Test MIL-STD-883 Test Method, Condition /H+ (Class H + PIND) (Class K) /EM (Engineering Model) Non-QML1,6 Non-Destructive Bond Pull TM2023 ●2 ● ●2 Internal Visual TM2010, TM2017, TM2032 (MIL-STD-750, TM2072, TM2073)

  • ● ● Temperature Cycling TM1010, Condition C -65 °C to 150 °C, Ambient ● ● Constant Acceleration TM2001, 3000g, Y1 Direction ● ● PIND3 TM2020, Condition A ●2 ● Pre Burn-In Electrical 25 °C ● Burn-In TM1015, 320 hrs., 125 °C, Case Typ ● TM1015, 160 hrs., 125 °C, Case Typ ● 24 hrs., 125 °C, Case Typ ● Final Electrical MIL-PRF-38534, Group A Subgroups 1-6
  • ● MIL-PRF-38534, Group A Subgroups 1 and 4 25 °C Hermeticity (Seal) TM1014, Fine Leak, Condition A2 or B1 ● ● TM1014, Gross Leak, Condition C1 or B2 ● ● Gross Leak, Dip (1x10-3) ● Radiography5 TM2012 ● External Visual TM2009 ● ● ● 1. Non-QML products may not meet all requirements of MIL-PRF-38534 2. Not required per MIL-PRF-38534. Test performed for additional product quality assurance 3. PIND test Certificate of Compliance included in product shipment 4. 100% R&R testing with all test data included in product shipment 5. Radiographic test Certificate of Compliance and film(s) or data CD included in product shipment 6. Engineering models utilize only the screening specified and are not considered compliant for flight use

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8.0 STANDARD MICROCIRCUIT DRAWING (SMD) NUMBERS

Do not use the SVRSA2800S Series similar part number for SMD product acquisition. It is listed for reference only. For exact specifications for the SMD product, refer to the SMD drawing. SMDs can be downloaded from the DLA Land and Maritime (Previously known as DSCC) website at https://landandmaritimeapps.dla.mil/programs/defaultapps.asp. The SMD number listed above represents the Federal Stock Class, Device Type, Device Class Designator, Case Outline, Lead Finish and RHA Designator (where applicable). Please reference the SMD for other screening levels, lead finishes, and radiation levels. All SMD products are marked with a “Q” on the cover as specified by the QML certification mark requirement of MIL-PRF-38534.

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9.0 ORDERING INFORMATION

(1) Product Series (2) Nominal Input Voltage (3) Output Voltage (4) Number of Outputs (5) Package Option (6) Screening Code1,2,3 (7) Additional Screening Code SVRSA 28 28 Volts 3R3

3.3 Volts

5 Volts

12 Volts

15 Volts

S Single (None) F Non-Flanged Flanged /EM /H+ Engineering Model Class H + PIND Class K Contact Sales

1 Contact the VPT Sales Department for availability of Class H (/H) or Class K (/K) qualified products

2 VPT Inc. reserves the right to ship higher screened or SMD products to meet lower screened orders at our sole discretion unless specificall y forbidden by customer contract 3 Engineering models utilize only the standard screening specified and are not considered compliant for flight use. These model s are intended for low volume engineering characterization only and have no guarantee regarding operation in a radiation environment. The customer must place the following statement on each line item of their purchase order(s) for /EM units when ordering engineering models: “(Customer Name) acknowledges that the /EM unit listed in this line item is not permitted for flight use and will be used for Engineering characterization only.” Please contact your sales representative or the VPT Inc. Sales Department for more information concerning additional environmental screening and testing, different input voltage, output voltage, power requirements, source inspection, and/or special element evaluation for space or other higher quality applications.

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10.0 CONTACT INFORMATION

To request a quotation or place orders please contact your sales representative or the VPT, Inc. Sales Department at: Phone: (425) 353-3010 Fax: (425) 353-4030 E-mail: vptsales@vptpower.com All information contained in this datasheet is believed to be accurate, however, no responsibility is assumed for possible errors or omissions. The products or specifications contained herein are subject to change without notice.

11.0 ADDITIONAL INFORMATION

Visit the VPT website for additional technical resources, including: Product Catalogs Application Notes and White Papers Technical Video Labs Additional Products For Avionics/Military, Hi-Rel COTS, and Space Applications