3W to 50W PLANAR SHOCK / VIBRATION PROOF

HIGH POWER RESISTORS

.

Non-Inductive planar package

High power density.

Thin package for high density PCB installation.

Power dissipated above the board.

RoHS compliant.

Superior vibration durability

………

Ideal for extreme mechanically stressed environments.

Power supply pre-load resistors.

UPS systems

Snubber and pulse handling circuits.

Pulse generator load resistors

.

In-rush current protection

Bleeder Resistors

Specification

Notes:

1.

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

Specifications subject to change without notice

Items

Specification

Conditions

Power Rating

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

@ ambient temp < 70

°C

Operating Voltage Max

300Vac, 500VDC

Resistance Range

0.1

Ω to 200 KΩ

Extended resistance range available.

TCR

100 ppm/

°C

For -55 to +155

°C and above 1Ω

Tolerance

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

Operation Temp. Range

-55 - +155

°C

Dielectric Withstanding Voltage

5KV minimum

Mechanical Shock

∆R +/- 0.25 %

100G.

Load Life

∆R +/- 2.0 %

70

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

Humidity

∆R +/- 0.5 %

85

°C, 85% RH, DC 0.1W, 1000 hours.

Temperature Cycle

∆R +/- 0.5%

-55

°C, 30 min.,+155°C 30min., 5cycles.

Soldering Heat (Max)

∆R +/- 0.25 %

250+/-5

°C, 10 seconds,

Solderability

Min 95% coverage

230+/-5

°C, 5 seconds.

Insulation Resistance

Over 1000 M

Ω

Between terminals and metal back plate.

Vibration

∆R +/- 0.25 %

20G, 10Hz to 2 KHz.

1

Materials

Lead:

Tin Plated Phosphor Bronze

Substrate: 96% Alumina

Resistor: Ruthenium Oxide

Model

BPR 3

BPR 5

BPR 7

BPR 10 BPR 20 BPR 30

BPR 40 BPR 50

0.50

0.50

1.00

1.00

2.00

2.10

2.10

2.10

Dim A

12.70

12.70

25.40

25.40

50.80

53.34

53.34

53.34

0.60

1.00

0.75

1.00

1.00

1.40

1.90

2.20

Dim B

15.24

25.40

19.05

25.40

25.40

35.56

48.26

55.88

0.67

1.07

0.82

1.07

1.07

1.47

1.97

2.27

Dim C

17.02

27.18

20.82

27.18

27.18

37.34

50.04

57.66

0.30

0.30

0.80

0.80

1.80

1.90

1.90

1.90

Dim D

7.62

7.62

20.32

20.32

45.72

48.26

48.26

48.26

Dimensions (inch / mm)

Dim. A ±.005

±0.13

Dim. B ±.005

±0.13

Dim. D ±.015

±0.38

Dim. C ±.020

±0.51

.020

±.005

0.51

±0.13

.040

±.005

1.02

±0.13

.040

±.005

1.02

±0.13

.200

±.002

5.08

±0.05

.200

±.020

5.08

±0.51

BPR