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WDBR1/2xxxxL PDF预览

WDBR1/2xxxxL

更新时间： 2024-11-06 14:51:39

品牌	Logo	应用领域
TTELEC		/
页数	文件大小	规格书
4页	689K
描述
Ultra low profile power resistor, flying leads

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Ultra Low Profile Power Resistors

WDBR Series

Features:

•

•

•

•

•

•

•

•

Ultra low proﬁle thick-ﬁlm on steel

500W to 7kW peak power

Single ﬁxing heatsink mountable

Ideal for dynamic braking, inrush limit and snubber circuits

Choice of ﬂying leads, push-on tags or solder terminaꢀons

Low inductance design

High isolaꢀon, even aꢂer failsafe overload fusing

Non-ﬂammable construcꢀon

All Pb-free parts comply with EU Direcꢀve 2011/65/EU amended by (EU) 2015/863 (RoHS3)

Electrical Data

WDBR1/2

WDBR1

WDBR2

WDBR3

WDBR5

WDBR7

Resistance range

Ω

2R2 - 150R 3R3 - 270R 8R2 – 820R 8R2 – 1K0

10R – 1K5

10R – 1K0

Standard values

E12 preferred. 20R, 25R and 50R are also available.

10

Resistance tolerance

Pulse peak power rating¹

Power rating on heatsink²

Power rating on fan cooled heatsink³

TCR

%

kW

0.5

160

300

1

2

3

5

7

W

180

700

200

780

260

900

270

1000

280

1490

W

ppm/°C

<+600

450

Maximum element temperature

Ambient temperature range (heatsink)

Dielectric withstand⁴

Inductance

°C

°C

V (dc/ac pk)

µH

-55 to +200

2500

<3

<4

<5

<6

Notes:

1. For details of pulse condiꢀon see Fig. 1 in Performance Data.

2. Mounted on a 0.53°C/W heatsink with no forced air cooling, air temperature 25°C.

3. Mounted on a 0.53°C/W heatsink with 5m/s forced air cooling, air temperature 25°C.

4. Based on 100% producꢀon test, duraꢀon 2s minimum.

Physical Data

Dimensions in mm and weight without terminations in g

t = substrate

thickness

L

W

±0.1

t

ØD

a

nom

b

nom

c

nom

d

min

Wt.

nom

Type

±0.1

±0.1 nom

WDBR1/2 31.9

28.1

35.9

40.6 0.9

70

70

2.2

3.2

7.5

3.2

4.7

13.5

14

3.1

11.2

13

22

23.8

51.3

4.3

6.2

5.8

10.2

7.4

9.2

1.4

1.9

3.8

7.2

6.1

7.9

6.5

d = clearance

between exposed

conductor and

exposed steel

substrate

WDBR1

WDBR2

49.3

61

12.6

17.1

50.8

60.7

181.8

WDBR3 101.6

WDBR5 122

WDBR7 152.4 101.6 1.5

5.3

15

Notes:

1. The ﬁxing hole is located centrally except on WDBR1/2 where the dimension from the edge by the terminaꢀons to the mounꢀng hole centre is 16.7mm.

2. In addiꢀon to the central ﬁxing hole, WDBR7 has two smaller corner holes. These are present for manufacturing purposes only and should not be used as ﬁxing holes.

Construcꢀon

Construcꢀon Cross Secꢀon

A high integrity dielectric layer is applied to

a machined stainless-steel substrate. Thick-

ﬁlm conductor and resistor paꢁerns are

printed and ﬁred, then protected with a high

temperature overglaze. The terminaꢀon

pads are ꢀnned with solder and opꢀonal

terminals or leads are soldered on.

General Note

BI Technologies IRC Welwyn

TT Electronics reserves the right to make changes in product speciﬁcaꢀon without noꢀce or liability.

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

www.ꢁelectronics.com/resistors

05.23

© TT Electronics plc

12 3 4

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与WDBR1/2xxxxL相关器件

型号	品牌	获取价格	描述	数据表
WDBR1/2xxxxT	TTELEC	获取价格	Ultra low profile power resistor, push-on connectors
WDBR1ULxxxxI	TTELEC	获取价格	Ultra low profile power resistor, UL508, solder pads
WDBR1ULxxxxL	TTELEC	获取价格	Ultra low profile power resistor, UL508, flying leads
WDBR1xxxxI	TTELEC	获取价格	Ultra low profile power resistor, solder pads
WDBR1xxxxL	TTELEC	获取价格	Ultra low profile power resistor, flying leads
WDBR1xxxxT	TTELEC	获取价格	Ultra low profile power resistor, push-on connectors
WDBR2	TTELEC	获取价格	Ultra low profile thick-film on steel
WDBR2ULxxxxI	TTELEC	获取价格	Ultra low profile power resistor, UL508, solder pads
WDBR2ULxxxxL	TTELEC	获取价格	Ultra low profile power resistor, UL508, flying leads
WDBR2xxxxI	TTELEC	获取价格	Ultra low profile power resistor, solder pads

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