SMTR2805D/KR

SMTR INTERPOINT | Alldatasheet

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3.3 DUAL ±12 ±15 DC/DC C ONVERTERS

28 VOLT INPUT

30 WATT

DESCRIPTION

The SMTR Series™ of 28 volt DC/DC converters offers up to 30 watts of output power from single or dual output configurations. The operate over the full military temperature range of –55°C to +125°C with up to 84% efficiency. SMTR converters are packaged in hermetically sealed metal enclosures, making them ideal for use in military, aerospace and other high reliability applications. SCREENING AND R EPORTS SMTR converters offer three screening options (Standard, Class H, or Class K) and two levels of radiation hardness (O or R). See Tables 1, 2, and 3 for more information. Detailed reports on product performance are also available and are listed in Table 4. C ONVERTER D ESIGN The SMTR converters are constant frequency, pulse-width mod- ulated switching regulators which use a quasi-square wave, single ended, forward converter design. Tight load regulation is maintained by using a wide bandwidth magnetic feedback and, on single output models, through use of remote sense. On dual output models, the positive output is independently regulated and the negative output is cross regulated through the use of tightly coupled magnetics. Indefinite short circuit protection and overload protection are provided by a constant current-limit feature. This protective system senses current in the converter’s secondary stage and limits it to approximately 115% of the maximum rated output current. SMTR converters are provided with internal filtering capacitors that help reduce the need for external components in normal operation. For systems that require compliance with MIL-STD-461C’s CE03 standard, Interpoint offers filter/transient suppression modules (including the FMC-461, FMD-461 and FM-704A series filters) which will result in compliance. For the lowest noise performance, connec- tion of the case to input common is recommended. The connection can be hard-wired or AC coupled with a small ceramic bypass capacitor. SYNCHRONIZATION Synchronizing the converter with the system clock allows the designer to confine switching noise to clock transitions, minimizing interference and reducing the need for filtering. In sync mode, the converter will run at any frequency between 500 kHz and 675 kHz. The sync control operates with a quasi-TTL signal at any duty cycle between 40% and 60%. The sync pin should be connected to input common pin when not in use. W IDE VOLTAGE R ANGE SMTR converters are designed to provide full power operation over a full 16 to 40 Vdc voltage range. Operation below 16 volts, including MIL-STD-704D emergency power conditions is possible with derated power. IMPROVED D YNAMIC R ESPONSE The SMTR Series feed-forward compensation system provides excellent dynamic response and noise rejection. Audio rejection is typically 50 dB. The min. to max. step line transient response is typi- cally less than 4%. INHIBIT FUNCTION SMTR converters provide an inhibit terminal that can be used to disable internal switching, resulting in no output and very low quiescent input current. The converter is inhibited when a TTL compatible low (≤0.8V) is applied to the inhibit pin. The unit is enabled when the pin, which is internally connected to a pull-up resistor, is left unconnected or is connected to an open-collector gate. The open circuit output voltage associated with the inhibit pin is 9 to 11 Vdc. In the inhibit mode, a maximum of 8 mAmust be sunk from the inhibit pin. See Figures 22 through 25 for dimensions. Weight: Non-flanged 52 grams max., flanged 55 grams max. Screening: Space prototype, Class H, or Class K (MIL-PRF-38534) Radiation hardness levels O or R

FEATURES

• Fully qualified to Class H or K
• Radiation hardened
• –55° to +125°C operation
• 16 to 40 VDC input
• Fully Isolated
• Magnetic feedback
• Fixed frequency, 600 kHz typical
• Topology – Single Ended Forward
• Inhibit function
• Sync function
• Indefinite short circuit protection
• Up to 30 watts output power
• Trim function on single output models
• Up to 81% efficiency

TYPICAL CHARACTERISTICSSYNC AND INHIBIT RECOMMENDED OPERA TING CONDITIONS ABSOLUTE MAXIMUM RATINGS Input Voltage

• 16 to 40 VDC Output Power
• 25 to 30 watts depending on model Lead Soldering Temperature (10 sec per pin)
• 300°C Storage Temperature Range (Case)
• –65°C to +135°C SMTR SERIES

Output Voltage Temperature Coefficient

• 100 ppm/°C typical single and dual outputs
• 200 ppm/°C main, 300 ppm/°C aux triple output Input to Output Capacitance
• 50 pF typ (100 pF typ triple outputs) Current Limit
• 115% of full load typical Isolation
• 100 megohm minimum at 500 V Audio Rejection
• 40 dB typ (50 dB typ triple output)l Conversion Frequency
• Free run 550 min, 600 typ, 650 max kHz
• External sync 500 to 675 kHz Inhibit Pin Voltage (unit enabled)
• 9 to 11 V Input Voltage Range
• 16 to 40 VDC continuous
• 50 V for 50 msec transient Case Operating Temperature (Tc)
• –55°C to +125°C full power
• –55°C to +135°C absolute Derating Output Power/Current
• Linearly from 100% at 125°C to 0% at 135°C Sync (500 to 675 kHz)
• Duty cycle 40% min, 60% max
• Logic low 0.8 V max
• Logic high 4.5 V min, 5 V max
• Referenced to input common
• If not used, connect to input common Inhibit TTL Open Collector
• Logic low (output disabled) Voltage ≤0.8 V Inhibit pin current 8.0 mA max
• Referenced to input common
• Logic high (output enabled) Open collector Notes 1. Tc = –55°C to +125°C 2. Operation is limited below 16V (see Figure 21). 3. Tested with 3300 pF ceramic bypass capacitors connected externally from input common to case and output common to case. 4. Indefinite short circuit protection not guaranteed above 125°C case. 5. Recovery time is measured from application of the transient to point at which Vout is within 1% of final value. 6. Transition time ≥10 µs. Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, radiation level O, unless otherwise specified. SINGLE OUTPUT MODELS SMTR283R3S SMTR2805S SMTR2812S SMTR2815S PARAMETER CONDITION MIN TYP MAX MIN TYP MAX MIN TYP MAX MIN TYP MAX UNITS OUTPUT CURRENT 1 VIN = 16 to 40 VDC 0 –– 5.45 0 — 5.0 0 — 2.5 0 — 2.0 A OUTPUT POWER 1 VIN = 16 to 40 VDC 0 — 18 0 — 25 0 — 30 0 — 30 W OUTPUT RIPPLE 10 kHz – 2 MHz — 15 40 — 35 40 — 25 40 — 25 40 mV p-pVOLTAGE Tc = –55°C TO +125°C — — 50 — 50 90 — 40 90 — 40 90 LINE REGULATION 2 Vin = 16 to 40 VDC Tc = –55°C TO +125°C — — 20 — 15 50 — 15 50 — 15 50 mV LOAD REGULATION NO LOAD TO FULL Tc = –55°C TO +125°C — — 20 — 15 50 — 15 50 — 15 50 mV INPUT VOL TAGE 1 CONTINUOUS 16 28 40 16 28 40 16 28 40 16 28 40 VDC NO LOAD TO FULL TRANSIENT 50 ms — —5 0——5 0——5 0——5 0 V INPUT CURRENT 1 NO LOAD — 30 75 — 35 75 — 35 75 — 35 75 mA INHIBITED — 7 8 — 3 8 — 3 8 — 3 8 mA INPUT RIPPLE 10 kHz – 10 MHz CURRENT 3 Tc = –55°C TO +125°C — 25 50 — 20 50 — 20 50 — 20 50 mA p-p EFFICIENCY 74 76 — 74 78 — 78 83 — 79 84 — % LOAD FAULT 4 SHORT CIRCUIT POWER DISSIPATION — — 10 — — 10 — — 10 — — 10 W RECOVERY 1, 5 — 1.4 6 — 1.4 5 — 1.4 5 — 1.4 5 ms STEP LOAD RESP . 50% – 100% – 50% TRANSIENT — ±125 ±250 — ±200 ±300 — ±250 ±400 — ±350 ±500 mV pk RECOVER Y5 — — 200 — 60 200 — 60 200 — 60 200 µs STEP LINE RESP. 16 – 40 – 16 VDC TRANSIENT 6 — — ±300 — ±200 ±300 — ±400 ±500 — ±500 ±600 mV pk RECOVERY 5 — — 300 — — 300 — — 300 — — 300 µs START-UP 1 DELAY — 1.4 5 — 1.4 5 — 1.4 5 — 1.4 5 ms OVERSHOOT FULL LOAD — 0 50 — 0 50 — 0 120 — 0 150 mV pkNO LOAD — 33 150 — 50 250 — 120 600 — 150 750

DUAL OUTPUT MODELS SMTR2805D SMTR2812D SMTR2815D PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX MIN TYP MAX UNITS OUTPUT POWER 1, 2 VIN = 16 TO 40 VDC 0 — 25 0 — 30 0 — 30 W OUTPUT RIPPLE 10 kHz - 2 MHz — 20 50 — 30 80 — 25 80 mV p-p VOLTAGE +/– VOUT Tc = –55°C TO +125°C — 40 80 — 40 120 — 40 120 LINE REGULATION 3 Tc = –55°C +V OUT — 10 50 — 10 50 — 10 50 mV VIN = 16 TO 40 VDC TO +125°C –V OUT — 50 100 — 50 150 — 50 180 LOAD REGULA TION Tc = –55°C +V OUT — 5 50 — 15 50 — 15 50 mV NO LOAD TO FULL TO +125°C –V OUT — 25 100 — 30 180 — 30 180 CROSS REGULATION SEE NOTE 4 — 7 12 — 4 8.3 — 3 8 EFFECT ON –V OUT SEE NOTE 5 — 4 6 — 4 6 — 4 6 INPUT VOLTAGE 1 CONTINUOUS 16 28 40 16 28 40 16 28 40 VDC NO LOAD TO FULL TRANSIENT 50 ms 0 — 50 0 — 50 0 — 50 V INPUT CURRENT NO LOAD — 35 75 — 50 75 — 50 75 mA FULL LOAD — 1.10 — — 1.34 — — 1.29 — A INHIBITED — 3 8 — 3 8 — 3 8 mA INPUT RIPPLE CURRENT 1, 6 10 kHz - 10 MHz — 15 50 — 20 50 — 20 50 mA p-p EFFICIENCY 74 76 — 77 80 — 78 81 —% LOAD FAULT 7 POWER DISSIPATION SHORT CIRCUIT 1 — — 10 — — 10 — — 10 W STEP LOAD 50 – 100 – 50% BALANCED RESPONSE ± VOUT TRANSIENT — ±200 ±300 — ±150 ±300 — ±200 ±400 mV pk RECOVER Y8 — 100 200 — 100 200 — 100 200 µs STEP LINE 16 – 40 – 16 V IN RESPONSE ±V OUT TRANSIENT 9 — ±200 ±400 — ±200 ±400 — ±400 ±500 mV pk RECOVERY 8 — — 300 — — 300 — — 300 µs START–UP 1 DELAY — 1.4 5 — 1.4 5 — 1.4 5 ms OVERSHOOT FULL LOAD — 0 180 — 0 120 — 0 150 mV pk NO LOAD — 50 250 — 120 600 — 150 750 SMTR SERIES

1. Tc = –55°C to +125°C. 2. Up to 90% of the total output current/power is available from either output providing the positive output is carrying at least 10% of the total output power. 3. Operation is limited below 16 V (see Figure 21). 4. Effect on the negative output under the following conditions: out20% to 80%; –Pout80% to 20% 5. Effect on the negative output under the following conditions: +Pout 50%; –Pout10% to 50% 6.Tested with 3300 pF ceramic bypass capacitors connected externally from input common to case and output common to case 7. Indefinite short circuit protection not guaranteed above 125°C case. 8. Recovery time is measured from application of the transient to point at which Vout is within 1% of final value. 9. Transition time ≥ 10 µs. Electrical Characteristics: 25°C Tc, 28 VDC Vin, 100% load, radiation level O, unless otherwise specified.

TRIM AND REMOTE SENSE (AVAILABLE ON SINGLE OUTPUT MODELS ONLY) SMTR SERIES Dot on top of cover indicates pin one. Dotted line outlines flanged package option. 610 789 12 345 FIGURE 3: PIN O UT SINGLE O UTPUT M ODELS R L OUTPUT COMMON R EMOTE SENSE CONNECTION 2 M ake connections at load. SMTR SINGLE OUTPUT CONVERTER 510 +VIN INPUT COMMON SENSE RETURN SENSE POSITIVE OUTPUT EXTERNAL TRIM CONNECTION 1 Make connections at converter. R L OUTPUT COMMON SMTR SINGLE OUTPUT CONVERTER 510 +V IN INPUT COMMON SENSE RETURN SENSE POSITIVE OUTPUT R T Pin Single Output Dual Output

1 Positive Input Positive Input

2 Inhibit Inhibit

3 Sense Return Positive Output

4 Output Common Output Common

5 Positive Output Negative Output

6 Positive Sense Case Ground

7 Case Ground Case Ground

8 Case Ground Case Ground

9 Sync Sync

10 Input Common Input Common

Dot on top of cover indicates pin one. 610 789 12 345 Dotted line outlines flanged package option. FIGURE 4: PIN O UT D UAL O UTPUT M ODELS See Figures 22 and 23 and for dimensions. See Figures 24 and 25 for dimensions. FIGURE 2: REMOTE SENSE 2, 3FIGURE 1: TRIM C ONNECTION 1, 2, 3 Notes for Remote Sense and Trim 1. When trimming output voltage and/or remote sensing, the total output voltage increase must be less than 0.6 volts at the converters pins to maintain specified performance. 2.If neither voltage trim nor remote sense will be used, connect pin 3 to pin 4 and pin 5 to pin 6 or the output voltage will increase by 1.2 volts. 3. CAUTION: The converter will be permanently damaged if the positive remote sense (pin 6) is shorted to ground. Damage may also result if the output common or positive output is disconnected from the load with the remote sense leads connected to the load. Trim Formulas Vout = desired output voltage; Rt = trim resistor 3.3V: Rt = 1300 * Vout – 4304 1.2475 5V: Rt = 1300 * Vout – 6512 1.2475 12V: Rt = 1300 * Vout – 15631 1.2475 15V: Rt = 1300 * Vout – 19498 1.2475

Typical Performance Curves: 25°C Tc, 28 VDC Vin, 100% load, free run, unless otherwise specified. FIGURE 8 FIGURE 10 OUTPUT POWER (Watts) SMTR2812D EFFICIENCY EFFICIENCY(%) 7065 5 10 15 20 16V 40V 28V 100 0.1 1 10 100 FREQUENCY (kHz) AUDIO REJECTION, SMTR SERIES ATTEN U ATIO N (dB) OUTPUT POWER (Watts) SMTR2805S EFFICIENCY EFFICIENCY (%) 5 10 15 20 25 16V 40V 28V FIGURE 5 OUTPUT POWER (Watts) SMTR2812S EFFICIENCY EFFICIENCY(%) 16V 28V 40V 10 15 20 FIGURE 6 OUTPUT POWER (Watts) SMTR2815D EFFICIENCY EFFICIENCY(%) 5 10 15 20 40V 28V 16V FIGURE 9 FIGURE 7 OUTPUT POWER (Watts) SMTR2815S EFFICIENCY EFFICIENCY(%) 16V 28V 40V 10 15 20 25 MODEL NUMBERING KEY SMD NUMBERS SMTR 28 05 S F / K R Base Model Input Voltage Output Voltage Screening Number of Outputs (S = single, D = dual) R adiation Level C ase Option (Non-flanged case has no designator in this position) STANDARD M ICROCIRCUIT D RAWING (SMD) 5962-0150102HXC 5962-9306802HXC 5962-9306902HXC 5962-9307002HXC IN PROCESS IN PROCESS IN PROCESS MTR S ERIES SIMILAR PART SMTR283R3S/HO SMTR2805S/HO SMTR2812S/HO SMTR2815S/HO SMTR2805D/HO SMTR2812D/HO SMTR2815D/HO To indicate the flanged case option change the “X” to “Z” In the SMD number . The SMD number shown is for Class H screening, non-flanged, and no Radiation Hardness Assurance (RHA) level. See the SMD for the numbers for other screening and radiation levels. For exact specifications for an SMD product, refer to the SMD drawing. Call your Interpoint repre- sentative for status on the SMTR SMD releases which are “in process.” SMDs can be downloaded from http://www.dscc.dla.mil/programs/smcr

®DC/DC C ONVERTERS Typical Performance Curves: 25°C Tc, 28 VDC Vin, 100% load, free run, unless otherwise specified. FIGURE 20 OUTPUT LOAD (%) COND. B: 50% LOAD +V, 50% to 10% –V COND. A: 50% LOAD –V, 50% to 10% +V CROSS REGULATION –VOUT VOLTAGE C HANGE (%) 10 20 30 40 50 –4–3 COND A COND B 2812D 2812D 2815D 2805D 2805D 50µs/div 10% 100% SMTR2815D +V OUT STEP LOAD RESPONSE 100m V/div 3W to 15W 15W to 3W FIGURE 17 200µs/div SMTR2815D TURN-ON INTO NO LOAD 5V/div 20V/div VIN +VOUT –VO UT FIGURE 18 OUTPUT POWER (Watts) 1% DROP SMTR SINGLES AND DUALS LOW LINE DROPOUT INPUTVOLTAGE(Volts) 13.0 13.514.0 14.5 15.0 15.5 16.0 9 12 15 18 21 24 27 FIGURE 21 FIGURE 19 +P OUT –POUT OUTPUT LOAD (Watts) 10% to 90% LOAD +V 90% to 10% LOAD –V CROSS REGULATION –VOUTVOLTAGECHANGE(%) -10 2812D 2815D 2815D 2812D 2805D 2805D FIGURE 14 FIGURE 16 1V/div 20V/div 500 µs /div SMTR2805S TURN-ON INTO NO LOAD VIN VOUT 50µs/div 25% 50% SMTR2815D +V OUT STEP LOAD RESPONSE 100m V/div –PO UT =15W 7.5W to 15W 15W to 7.5W 50µs/div

16 TO 40V

SMTR2805S STEP LINE RESPONSE 20m V/div 20V/div VIN VOUT FIGURE 11 50µs/div 50% 100% SMTR2805S STEP LOAD RESPONSE 100m V/div 25W to 12.5W 12.5W to 25W FIGURE 12 50µs/div

16 TO 40

SMTR2815D STEP LINE RESPONSE 20m V/div 20V/div VIN +VOUT –VO UT FIGURE 15 FIGURE 13 50µs/div 10% 100% SMTR2805S STEP LOAD RESPONSE 200m V/div 25W to 2.5W 2.5W to 25W

See Figure 23 for pin configurations. 2.125 max (53.98) 1.125 max (28.58) M aterials H eader Cold Rolled Steel/Nickel/Gold case H2 Cold Rolled Steel/Nickel/Tin case H4 C over Kovar/Nickel case H2 Cold Rolled Steel/Nickel/Tin case H4 Pins #52 alloy ceramic seal case H1 compression glass seal case H4 Case dimensions in inches (mm) Tolerance ±0.005 (0.13) for three decimal places ±0.01 (0.3) for two decimal places unless otherwise specified CAUTION Heat from reflow or wave soldering may damage the device. Solder pins individually with heat application not exceeding 300°C for 10 seconds per pin. Dot on top of case indicates pin one FIGURE 22: CASE H M AXIMUM D IMENSIONS 0.155 (3.94) 0.955 (24.26) 0.155 (3.94) 0.955 (24.26) 610 789 PlatformSeam Seal 0.000 0.040 dia (1.02) 0.000 0.000 0.400 m ax. (10.16) 0.25 (6.4) 0.245 (6.22) 1.845 (46.86) 2.090 (53.01) 1.110 (28.19) 610 SMTR Series Single SMTR Series Dual BOTTOM VIEW CASE H2 345 789 0.000 0.000 0.245 (6.22) 1.845 (46.86) 2.090 (53.01) 1.110 (28.19) 12 345 0.645 (16.38) 1.045 (26.54) 1.445 (36.70) 0.645 (16.38) 1.045 (26.54) 1.445 (36.70) Squared corner and dot on top of case indicate pin one. Squared corner and dot on top of case indicate pin one. SMTR Series Single SMTR Series Dual FIGURE 23: CASE H2 Note: Although every effort has been made to render the case drawings at actual size, variations in the printing process may cause some distortion. Please refer to the numerical dimensions for accuracy.

Cold Rolled Steel/Nickel/Gold Case K8 Cold Rolled Steel/Nickel/Tin Cover Case K3 Kovar/Nickel Case K8 Cold Rolled Steel/Nickel/Tin Pins #52 alloy (all cases) Case K3 ceramic seal Case K8 compression glass seal Case dimensions in inches (mm) Tolerance ±0.005 (0.13) for three decimal places ±0.01 (0.2) for two decimal places unless otherwise specified CASE K BOTTOM VIEW See Figures 40 and 41 for pin configuration CAUTION Heat from reflow or wave soldering may damage the device. Solder pins individually with heat application not exceeding 300°Cfor 10 seconds per pin. Flange Thickness: Case K3 0.060 (1.52) 1.125 max (28.58) 2.910 max (73.91) D ot on top of case indicates pin one FIGURE 24: CASE K M AXIMUM D IMENSIONS

0.155 (3.94) 0.955 (24.26) 610 789 0.000 0.400 m ax. (10.16) 0.25 ±0.03 (6.4 ±0.8) 0.040 dia (1.02) 0.000 0.400 m ax. (10.16) 0.25 ±0.03 (6.4 ±0.8) 0.040 dia (1.02) 0.155 (3.94) 0.955 (24.26) Platform Header Seam Seal Platform Header Seam Seal 0.000 0.000 0.245 (6.22) – 0.230 (5.84) 1.845 (46.86) 2.320 (58.93) 0.230 (5.84) 2.320 (58.93) 1.110 (28.19) 610 Flanged cases: Designator "F" required in Case Option position of model number. SMTR Series Single SMTR Series Dual BOTTOM VIEW CASE K3 345 789 0.000 0.245 (6.22) 1.845 (46.86) 12 345 0.645 (16.38) 1.045 (26.54) 1.445 (36.70) 0.645 (16.38) 1.045 (26.54) 1.445 (36.70) 0.555 (14.1) 0.000 1.110 (28.19) 0.555 (14.1) Dot on top of case indicates pin one Dot on top of case indicates pin one SMTR Series Single SMTR Series Dual 0.162 dia (4.11) 0.162 dia (4.11) FIGURE 25: CASE K3

Element Evaluation: Component testing/screening per MIL-STD-883 as determined by MIL-PRF-38534 SEM: Scanning Electron Microscopy SLAM™: Scanning Laser Acoustic Microscopy C-SAM: C - Mode Scanning Acoustic Microscopy TABLE 1: ELEMENT EVALUATION ELEMENT EVALUATION SPACE PROTOTYPE C LASS C LASS TEST PERFORMED (O) H K (COMPONENT LEVEL ) M/S P M/S P M/S P Element Electrical yes no yes yes yes yes Element Visual no no yes yes yes yes Internal Visual no no yes no yes no Temperature Cycling no no no no yes yes Constant Acceleration no no no no yes yes Interim Electrical no no no no yes no Burn-in no no no no yes no Post Burn-in Electrical no no no no yes no Steady State Life no no no no yes no Voltage Conditioning /Aging no no no no no yes Visual Inspection no no no no no yes Final Electrical no no yes yes yes yes W ire Bond Evaluation no no yes yes yes yes SEM no no no no yes no SLAM™/C-SAM: Input capacitors only no no no yes no yes (Add’l test, not req. by H or K) Notes M/S Active components (Microcircuit and Semiconductor Die) P Passive components

TABLE 2: PRODUCT ENVIRONMENTAL SCREENING ENVIRONMENTAL SCREENING SPACE TEST PERFORMED PROTOTYPE C LASS C LASS (END ITEM LEVEL ) (O) H K Non-destruct bond pull Method 2023 no no yes Pre-cap inspection Method 2017, 2032 yes yes yes Temperature cycle Method 1010, Cond. C yes yes yes Constant acceleration Method 2001, 3000 g yes yes yes PIND Test Method 2020, Cond. B no yes yes Radiography Method 2012 no no yes Pre burn-in test yes yes yes Burn-in, Method 1015, 125°C 96 hours yes no no 160 hours no yes no 2 x 160 hour (includes mid BI test)no no yes Final electrical test MIL-PRF-38534, Group A yes yes yes Hermeticity test Fine Leak, Method 1014, Cond. A yes yes yes Gross Leak, Method 1014, Cond. C yes yes yes Final visual inspection Method 2009 yes yes yes Test methods are referenced to MIL-STD-883 as determined by MIL-PRF-38534.

SMTR Rev E August 24, 2005 (case to input common). This revision supercedes all previous releases. All technical information is believed to be accurate, but no responsi- bility is assumed for errors or omissions. Interpoint reserves the right to make changes in products or specifications without notice. SMTR Series is a trademark of Interpoint. Copyright © 1994 - 2005 Interpoint. All rights reserved. TABLE 3: RADIATION H ARDNESS LEVELS Contact Information: Interpoint Headquarters USA Phone: 1-800-822-8782 +425-882-3100 Email: power@intp.com www .interpoint.com Interpoint UK Phone: +44-1252-872266 Email: poweruk@intp.com Interpoint France Phone: +33-134285455 Email: powerfr@intp.com PRODUCT LEVEL AVAILABILITY ENVIRONMENTAL SCREENING LEVELS SPACE PROTOTYPE CLASS CLASS RADIATION HARDNESS LEVELS (O) H K O : Standard, no radiation guarantee For system evaluation, electrically OO HO Not and mechanically comparable to available H and K level. R : Radiation hardened – Tested lots NotUp to 100 k Rads (Si) total dose available HR KR SEU guarantee up to 40 MeV R is referenced to MIL-PRF-38534, appendix G, Radiation Hardness Assurance (RHA) levels.