Features

Enhanced surge & pulse energy capacity

UL94-V0 flameproof protection

Radial taped form available

Surface mount ZI-form option

Non inductive type available

Dimensions (mm) & Weight (g)

Type

L max

D max

f min

d max

PCB

mount

centres

Min

bend

radius

Wt. nom

WHS2

9.0

3.6

19.80

0.81

12.50

1.2

0.50

WHS3

14.5

5.2

24.55

20.00

1.10

WHS5

16.5

7.0

23.55

22.00

1.75

WHS7

25.0

8.8

28.30

31.00

4.40

WHS10

51.0

10.5

26.00

1.01

56.00

1.5

8.80

WHS10N

11.0

10.50

WHS2 / WHSP2R

WHS3

WHS5

WHS7

WHS10

WHS10N*

Power rating at 25°C

watts

2

3

5

7

10

5s overload rating at 25°C

watts

10

15

25

35

50

Short pulse performance

See Pulse Performance graphs

Resistance range

ohms

1R0-330R

2R2-330R

5R6-100R

TCR

ppm/°C

±200

Isolation Voltage

volts

250

350

500

700

1000

Resistance Tolerance

%

<20R: 5 ≥20R: 1, 2, 5

5%

Standard Values

E24 preferred

Thermal Impedance

°C/watt

110

82

54

35

25

Ambient temperature range

°C

-55 to +155

Construction

A high purity ceramic substrate is assembled with interference fit end caps to which are welded the terminations. The resistive element

is wound on the substrate and welded to the caps. Flameproof silicone cement coating is applied prior to marking with indelible ink. The

components are then leadformed if required and packed.

Electrical Data

Physical Data

No Limiting Element Voltage applies to this series; the Rated Voltage is √(P.R).

*Non inductive (Ayrton Perry) winding

f

D

d

L

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

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

WHS Series

Wirewound High Surge Resistors

10.24

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.ttelectronics.com/resistors

BI Technologies IRC Welwyn