VHP-3 VISHAY | Alldatasheet

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Document Number: 63005 For any ques tions, contact: foil@vishay.com www.vishay.com Revision: 31-Oct-07 1 VHP-3, VHP-4, VPR247 Vishay Foil Resistors Bulk Metal® Foil Technology Hermetically Sealed Power and Current Sensing Resistor with TCR of 2 ppm/°C and Power up to 10 Watts Any value available within resistance range Vishay Bulk Metal ® Foil power resistors offer the best approach to low value power and current sensing when a combination of accuracy, tight TCR, low thermal EMF, low voltage coefficient, Kelvin connection, and long term stability (under power) are required. Vishay Models VHP-3 and VHP-4 offer all welded construction and screw mounting directly to a metal heat sink for maximum heat transfer. Hermetic sealing and nitrogen back fill provide the maximum protection against environmental stresses, thereby ensuring long term stability. A special feature of this cons truction is Kovar eyelet’s and OFHC solder plated copper leads providing the lowest thermal EMFs in the industry. Vishay Model VPR247 has many of the advantages of the VHP-4 but with significantly reduced size and weight. It also has gold plated copper leads. Our Application Engineering department is available to advise and to make recommendations. For non-standard technical requirements and special applications, please contact us.

FEATURES

  • Temperature coefficient of resistance TCR: ± 2 ppm/°C typical (- 55 °C to + 125 °C, + 25 °C ref.) (see tables 1 and 2)
  • Tolerance: to ± 0.01 % (see tables 1 and 2)
  • Power rating (heat-sinked): 10 W
  • Load life stability: ± 0.01 % at 25 °C, 2000 h at rated power
  • Resistance range: 0.05 Ω to 80 kΩ
  • Electrostatic discharge (ESD) above 25 000 V
  • Non inductive, non capacitive design
  • Rise time: 1.0 ns without ringing
  • Current noise: < - 40 dB
  • Thermal EMF: 0.05 µV/°C typical
  • Voltage coefficient: < 0.1 ppm/V
  • Non inductive: 0.08 µH
  • Non hot spot design
  • Terminal finishes available: VHP-3 and VHP-4: lead (Pb)-free tin/lead alloy VPR247: gold plated
  • Any value available within resistance range (e.g. 1K234)
  • Prototype samples available from 48 h. For more information, please contact foil@vishay.com
  • For better performances, please contact Application Engineering Notes 1. Weight of VHP-3 and VHP-4 = 15 g maximum VPR247 = 7 g maximum 2. Available up to 500 Ω 3. - 55 °C to + 125 °C, + 25 °C ref. 4. See figure 5 * Pb containing terminations are not RoHS compliant, exemptions may apply Available Pb-free RoHS* COMPLIANT TABLE 1 - VHP-31) SPECIFICATIONS RESISTANCE RANGE (Ω) TIGHTEST TOLERANCE TYPICAL TCR3), 4) MAXIMUM TCR3) 50 to 80K ± 0.01 % ± 2 ppm/°C ± 5 ppm/°C 25 to < 50 ± 0.02 % ± 7 ppm/°C 10 to < 25 ± 0.05 % ± 10 ppm/°C 5 to < 10 ± 0.1 % ± 13 ppm/°C 2 to < 5 ± 0.25 % ± 20 ppm/°C 1 to < 2 ± 0.5 % ± 25 ppm/°C 0.5 to < 1 ± 1.0 % TABLE 2 - VHP-4 AND VPR247 SPECIFICATIONS1), 2) RESISTANCE RANGE (Ω) TIGHTEST TOLERANCE TYPICAL TCR3), 4) MAXIMUM TCR3) 10 to 500 ± 0.01 % ± 2 ppm/°C ± 5 ppm/°C 5 to < 10 ± 0.02 % ± 6 ppm/°C 2 to < 5 ± 0.05 % ± 8 ppm/°C 1 to < 2 ± 0.1 % ± 10 ppm/°C

VHP-3, VHP-4, VPR247 Vishay Foil Resistors Bulk Metal® Foil Technology Hermetically Sealed Power and Current Sensing Resistor with TCR of 2 ppm/°C and Power up to 10 Watts www.vishay.com For any questions, contact: foil@vishay.com Document Number: 63005

2 Revision: 31-Oct-07

Kelvin (4-terminal) connections are used for these low ohmic value products to measure a precise voltage drop across the resistive element. In these applications the contact resistance, lead resistance, and their TCR effect may be greater than that of the element itself and could cause signif icant errors if the standard 2-terminal connection is used. Figure 2 shows a high impedance measurement system where r5 approaches infinity and Im approaches zero resulting in negligible IR drop through r3 and r4 which negates their lead resistance and TCR effect. With the voltage sense leads E 1 and E 2 inside of r 1 and r 2 the resistance and TCR effect of the current leads, I 1 and I 2 are negated and only the resistan ce and TCR of the element R are sensed. This method of measurement is essential for precise current sensing. TABLE 3 - GENERAL SPECIFICATIONS Stability Load life 2000 h ± 0.05 % maximum ΔR, 3 W in still air at + 25 °C ± 0.05 % maximum ΔR under full rated power (10 W at + 25 °C on heat sink) Shelf life ± 0.0005 % (5 ppm) maximum ΔR/year Power Rating At + 25 °C (see Fig. 1) 10 W or 3 A - heat sink2)

3 W or 3 A - free air

Current Noise < 0.010 µV (RMS)/V of applied voltage (- 40 dB) High Frequency Operation Rise time 1.0 ns at 1 k Ω without ringing Inductance (L)3) 0.1 µH maximum; 0.08 µH typical Capacitance (C) 1.0 pF maximum; 0.5 pF typical Voltage Coefficient < 0.1 ppm/V Operating Temperature Range - 55 °C to + 150 °C Hermeticity 10-7 Atmospheric cc/s maximum Maximum Working Voltage7) 600 V Thermal EMF8) 0.1 µV/°C maximum (lead effect) 2.5 µV/W maximum (power effect) FIGURE 1 - POWER DERATING CURVE + 100 + 75 + 50 + 25 Ambient Temperature (°C) Percent of Rated Power - 55 °C Rated Power - 75 - 50 - 25 0 + 25 + 50 + 75 + 100 + 125 + 150 + 175 FIGURE 2 - KELVIN CONNECTION r1 r2 I1 I2 r3 r4 R Im r5 ∞ FIGURE 3 - VHP-3, VHP-4 STANDARD IMPRINTING AND DIMENSIONS in inches (millimeters) Case not active; insulators not required; mounting hardware not supplied. Mounting Hole 0.156 dia (3.9) ± 0.005 (± 0.13) 0.665 (16.89) ± 0.005 (± 0.13) 1.186 (30.13) ± 0.005 (± 0.13) 1.530 (38.86) ± 0.005 (± 0.13) TO-3 Cap TO-3 Base 0.040 (1.00) Dia. ± 0.005 (± 0.13) 0.43 (10.92) ± 0.01 (± 0.25) 1.00 (25.4) ± 0.005 (± 0.13) 0.770 (19.56) Max. Dia. 0.266 (6.76) ± 0.005 (± 0.13) 0.335 (8.51) Min. Mounting Hole 0.222 (5.64) I1 I2 0.156 Dia. (3.9) ± 0.005 (± 0.13) 0.665 (16.89) ± 0.005 (± 0.13) 1.186 (30.13) ± 0.005 (± 0.13) 1.530 (38.86) ± 0.005 (± 0.13) VHP-3 VHP-4 (4 terminal) Standard Markin g Arrangement E1 E2 I1 I2 Model Number VISHAY VHP-3T 12K500 0.1 % B0729 Date Code B Year Week Resistance Value Tolerance Print Spec

Document Number: 63005 For any ques tions, contact: foil@vishay.com www.vishay.com Revision: 31-Oct-07 3 VHP-3, VHP-4, VPR247 Bulk Metal® Foil Technology Hermetically Sealed Power and Current Sensing Resistor with TCR of 2 ppm/°C and Power up to 10 Watts Vishay Foil Resistors FIGURE 4 - VPR247 STANDARD IMPRINTING AND DIMENSIONS DIMENSION INCHES MM L 0.690 ± 0.005 17.53 ± 0.13 H 0.820 ± 0.005 20.83 ± 0.13 W 0.215 ± 0.005 5.46 ± 0.13 LL 0.500 minimum 12.70 minimum LS 0.100 ± 0.005 2.54 ± 0.13 S 0.200 ± 0.005 5.08 ± 0.13 A 0.120 ± 0.005 3.05 ± 0.13 B 0.040 ± 0.005 1.02 ± 0.13 C 0.120 ± 0.005 3.05 ± 0.13 0.140 ± 0.005 (Dia. Thru Hole)C W LL L Date Code Week Year VISHA Y VPR247 XXXX 0R2000 1 % H S A LS Tolerance Resistance Value Gold Plated Copper Leads 0.025 Dia. I

1 E1 E2 I2

B 0.010 Max. Sleeve Extension FIGURE 5 - TYPICAL TCR CURVE (For more details, see tables 1 and 2) - 50 - 25 0 + 20 + 50 + 75 + 100 + 125 - 55 + 150 + 100 + 50 - 50 - 100 - 150 - 200 ΔR R (ppm) Ambient Temperature (°C) ± 2 ppm/°C (+ 25 °C Reference) FIGURE 6 - TRIMMING TO VALUES Mutual Inductance Reduction due to Change in Current Direction Current Path Before Trimming Note: Foil shown in black, etched spaces in white Interloop Capacitance Reduction in Series Trimming Process Removes this Material from Shorting Strip Are a Changing Current Path and Increasing Resistance Current Path After Trimming

VHP-3, VHP-4, VPR247 Vishay Foil Resistors Bulk Metal® Foil Technology Hermetically Sealed Power and Current Sensing Resistor with TCR of 2 ppm/°C and Power up to 10 Watts www.vishay.com For any questions, contact: foil@vishay.com Document Number: 63005

4 Revision: 31-Oct-07

  1. Whichever is lower. 2. Heat sink chassis dimens ions and requirements per MIL-PRF-39009/1: 3. Inductance (L) due mainly to the leads. 4. The resolution limit of existing test equipment (within the measurement capability of the equipment, or “essentially zero”). 5. Not to exceed power rating of resistor. 6. Vishay test data as compar ed to MIL-PRF-39009 is shown for illustration purposes, Vishay test conditions that deviate from the Mil test method are noted within parentheses. 7. Maximum ambient temperature rating is + 150 °C. 8. Maximum overload rating is 15 W (5 x rated power in free air; 1.5 x rated power on heatsink), with applied voltage not to exceed 750 V. 9. ΔR’s are as shown plus 0.001 Ω to allow for measurement errors at low resistance values. TABLE 4 - ENVIRONMENTAL PERFORMANCE METHOD PARAGRAPH6) MIL-PRF-39009 ΔR LIMITS VHP-3, VHP-4 AND VPR247 TYPICAL ΔR TEST DATA9) Test Group I Test Group II Resistance temperature 4.8.4 < 1 Ω See tables 1 and 2, page 1 Characteristic ± 100 ppm/°C; (- 55 °C to + 125 °C) 1 Ω to 19.6 Ω: ± 50 ppm/°C; ≥ 20 Ω: ± 30 ppm/°C DWV Insulation resistance 4.8.6 10

4 MΩ > 104 MΩ

Short time overload8) Test Group III Shock - specified pulse Vibration - high frequency Test Group IV Life test 80 % power at + 70 °C for 2000 h - - ± 0.04 % Test Group V High temperature exposure INCHES MM L 6.00 152.4 W 4.00 101.6 H 2.00 50.8 T 0.04 1.0

Document Number: 63005 For any ques tions, contact: foil@vishay.com www.vishay.com Revision: 31-Oct-07 5 VHP-3, VHP-4, VPR247 Bulk Metal® Foil Technology Hermetically Sealed Power and Current Sensing Resistor with TCR of 2 ppm/°C and Power up to 10 Watts Vishay Foil Resistors Note * For non-standard requests, please contact Application Engineering. TABLE 5 - GLOBAL PART NUMBER INFORMATION NEW GLOBAL PART NUMBER: Y0065500R000T9L (preferred part number format) DENOTES PRECISION VALUE AER* YR = Ω K = kΩ 0 = standard 9 = lead (Pb)-free 1 - 999 = custom PRODUCT CODE RESISTANCE TOLERANCE PACKAGING 0065 = VHP-3 0066 = VHP-4 0830 = VPR247 T = ± 0.01 % Q = ± 0.02 % A = ± 0.05 % B = ± 0.1 % C = ± 0.25 % D = ± 0.5 % F = ± 1.0 % G = ± 2.0 % J = ± 5.0 % L = bulk pack FOR EXAMPLE: ABOVE GLOBAL ORDER Y0065 500R000 T 9 L: TYPE: VHP-3 VALUE: 500.0 Ω ABSOLUTE TOLERANCE: ± 0.01 % TERMINATION: lead (Pb)-free PACKAGING: bulk pack HISTORICAL PART NUMBER: VHP-3T 500R00 T B (will continue to be used) VHP-3 T 500R00 T B MODEL TERMINATION OHMIC VALUE RESISTANCE TOLERANCE PAC KAGING VHP-3 VHP-4 VPR247 T = lead (Pb)-free None = tin/lead alloy 500 Ω T = ± 0.01 % Q = ± 0.02 % A = ± 0.05 % B = ± 0.1 % C = ± 0.25 % D = ± 0.5 % F = ± 1.0 % G = ± 2.0 % J = ± 5.0 % B = bulk pack 0655 0R0 0 T90 L

Document Number: 91000 www.vishay.com Revision: 18-Jul-08 1 Disclaimer Legal Disclaimer Notice Vishay All product specifications and data are subject to change without notice. Vishay Intertechnology, Inc., its affiliates, agents, and employees, and all persons acting on its or their behalf (collectively, “Vishay”), disclaim any and all liability for any errors, inaccuracies or incompleteness contained herein or in any other disclosure relating to any product. Vishay disclaims any and all li ability arising out of the use or application of any product described herein or of any information provided herein to the maximum extent permit ted by law. The product specifications do not expand or otherwise modify Vishay’s terms and conditions of purcha se, including but not limited to the warranty expressed therein, which apply to these products. No license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted by this document or by any conduct of Vishay. The products shown herein are not designed for use in medi cal, life-saving, or life-sustaining applications unless otherwise expressly indicated. Customers using or selling Vishay products not expressly indicated for use in such applications do so entirely at their own risk and agree to fully indemnify Vishay for any damages arising or resulting from such use or sale. Please contact authorized Vishay personnel to obtain written terms and conditions regarding products designed for such applications. Product names and markings noted herein may be trademarks of their respective owners.