3W to 50W Planar Shock / Vibration

Proof High Power Resistors

BPR Series

Non-Inductive planar package

High power density.

Thin package for high density PCB installation.

Power dissipated above the board.

RoHS compliant.

Superior vibration durability

Applications

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

Model BPR 3 BPR 5 BPR 7 BPR 10 BPR 20 BPR 30 BPR 40

BPR 50

Dim A

0.50

12.70

0.50

12.70

1.00

25.40

1.00

25.40

2.00

50.80

2.10

53.34

2.10

53.34

2.10

53.34

Dim B

0.60

15.24

1.00

25.40

0.75

19.05

1.00

25.40

1.00

25.40

1.40

35.56

1.90

48.26

2.20

55.88

Dim C

0.67

17.02

1.07

27.18

0.82

20.82

1.07

27.18

1.07

27.18

1.47

37.34

1.97

50.04

2.27

57.66

Dim D

0.30

7.62

0.30

7.62

0.80

20.32

0.80

20.32

1.80

45.72

1.90

48.26

1.90

48.26

1.90

48.26

Lead: Tin Plated Copper Alloy

Substrate: 96% Alumina

Resistor: Thick Film

Specification, Dimensions and Materials

Items

Specification

Conditions

Power Rating

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

@ ambient temp < 70°C

Operating Voltage Max

300Vac, 500VDC

Resistance Range

0.1Ω to 200 KΩ

Extended resistance range available.

TCR

100 ppm/°C

For -55 to +155°C and above 1Ω

Tolerance

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

OperatiingTemp. Range

-55 - +155 °C

Dielectric Withstand Voltage

5KV minimum

Mechanical Shock

ΔR +/- 0.25 %

100G.

Load Life

ΔR +/- 2.0 %

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

Humidity

ΔR +/- 0.5 %

85°C, 85% RH, DC 0.1W, 1000 hours.

Temperature Cycle

ΔR +/- 0.5%

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

Solder Heat (Max)

ΔR +/- 0.25 %

250+/-5°C, 10 seconds,

Solderability

Min 95% coverage

230+/-5°C, 5 seconds.

Insulation Resistance

Over 1000 MΩ

Between terminals and metal back plate.

Vibration

ΔR +/- 0.25 %

20G, 10Hz to 2 KHz.

Notes:

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

Specifications subject to change without notice

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

Make Possible

Resistors

All parts are Pb-free and comply with EU Directive 2011/65/EU (RoHS2)

01.16

General Note

TT Electronics reserves the right to make changes in product specification without notice or liability.

All information is subject to TT Electronics’ own data and is considered accurate at time of going to print.

© TT Electronics plc

www.ttelectronicsresistors.com

OBSOLETE

(BPR20, BPR40 & BPR50 ONLY)

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