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BPR

3W to 50W PLANAR SHOCK / VIBRATION PROOF HIGH POWER RESISTORS

BI Technologies 

3W to 50W PLANAR SHOCK / VIBRATION PROOF

HIGH POWER RESISTORS

Features…………………………………………………………

ƒ Non-Inductive planar package

ƒ High power density.

ƒ Thin package for high density PCB installation.

ƒ Power dissipated above the board.

ƒ RoHS compliant.

ƒ Superior vibration durability

Applications………………………………………………

ƒ Ideal for extreme mechanically stressed environments.

ƒ Power supply pre-load resistors.

ƒ UPS systems

ƒ Snubber and pulse handling circuits.

ƒ Pulse generator load resistors.

ƒ In-rush current protection

ƒ Bleeder Resistors

.

………

Specification

Dimensions (inch / mm)

Dim. A ±.005

±0.13

.040±.005

1.02±0.13

Model

Dim A

Dim B

Dim C

Dim D

BPR 3

0.50

12.70

0.60

15.24

0.67

17.02

0.30

7.62

BPR 5

0.50

12.70

1.00

25.40

1.07

27.18

0.30

7.62

BPR 7

1.00

25.40

0.75

19.05

0.82

20.82

0.80

20.32

BPR 10 BPR 20 BPR 30

1.00 2.00 2.10

25.40 50.80 53.34

1.00 1.00 1.40

25.40 25.40 35.56

1.07 1.07 1.47

27.18 27.18 37.34

0.80 1.80 1.90

20.32 45.72 48.26

BPR 40 BPR 50

2.10 2.10

53.34 53.34

1.90 2.20

48.26 55.88

1.97 2.27

50.04 57.66

1.90 1.90

48.26 48.26

Dim. B ±.005

±0.13

BPR

Dim. C ±.020

±0.51

.020±.005

0.51±0.13

Dim. D ±.015

±0.38

.040±.005

1.02±0.13

.200±.002

5.08±0.05

.200±.020

5.08±0.51

Notes:

1. Contact factory for custom products, non-standard values and tolerances.

Materials

Lead: Tin Plated Phosphor Bronze

Substrate: 96% Alumina

Resistor: Ruthenium Oxide

Items

Power Rating

Operating Voltage Max

Resistance Range

TCR

Tolerance

Operation Temp. Range

Dielectric Withstanding Voltage

Mechanical Shock

Load Life

Humidity

Temperature Cycle

Soldering Heat (Max)

Solderability

Insulation Resistance

Vibration

Specification

3W, 5W, 7W, 10W, 20W, 30W, 40W & 50W,

300Vac, 500VDC

0.1Ω to 200 KΩ

100 ppm/°C

+/-5%, optional 1%, 2%

-55 - +155 °C

5KV minimum

∆R +/- 0.25 %

∆R +/- 2.0 %

∆R +/- 0.5 %

∆R +/- 0.5%

∆R +/- 0.25 %

Min 95% coverage

Over 1000 MΩ

∆R +/- 0.25 %

Conditions

@ ambient temp < 70°C

Extended resistance range available.

For -55 to +155°C and above 1Ω

100G.

70°C, 90 min. ON, 30 min.OFF, 1000 hours.

85°C, 85% RH, DC 0.1W, 1000 hours.

-55°C, 30 min.,+155°C 30min., 5cycles.

250+/-5°C, 10 seconds,

230+/-5°C, 5 seconds.

Between terminals and metal back plate.

20G, 10Hz to 2 KHz.

Specifications subject to change without notice

1

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