Enhanced surge & pulse energy capacity
UL94-V0 ameproof protecon
Radial taped form available
Surface mount ZI-form opon
Non inducve 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
12.70
1.2
0.50
WHS3 14.5 5.2 24.55 20.30 1.10
WHS5 16.5 7.0 23.55 22.86 1.75
WHS7 25.0 8.8 28.30 31.40 4.40
WHS10 51.0 10.5 26.00 1.01 55.88 1.5 8.80
WHS10N 11.0 10.50
WHS2 / WHSP2R WHS3 WHS5 WHS7 WHS10 WHS10N*
Power rang at 25°C was 2 3 5 7 10
5s overload rang at 25°C was 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
Isolaon Voltage volts 250 350 500 700 1000
Resistance Tolerance % <20R: 5 ≥20R: 1, 2, 5 5%
Standard Values E24 preferred
Thermal Impedance °C/wa 110 82 54 35 25
Ambient temperature range °C -55 to +200
Construcon
A high purity ceramic substrate is assembled with interference t end caps to which are welded the terminaons. The resisve element
is wound on the substrate and welded to the caps. Flameproof silicone cement coang is applied prior to marking with indelible ink. The
components are then leadformed if required and packed.
Electrical Data
Physical Data
No Liming Element Voltage applies to this series; the Rated Voltage is √(P.R).
*Non inducve (Ayrton Perry) winding
03.20
General Note
TT Electronics reserves the right to make changes in product specication 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
All Pb-free parts comply with EU Direcve 2011/65/EU amended by (EU) 2015/863 (RoHS3)All Pb-free parts comply with EU Direcve 2011/65/EU amended by (EU) 2015/863 (RoHS3)
WHS Series
Resistors
Wirewound High Surge Resistors