In our continuing strategy to deliver unparalleled circuit protection solutions,

technical expertise and application leadership, we proudly introduce the

WICKMANN Group and its products to the Littelfuse portfolio.

040706

www.littelfuse.com

No. HVR250

Thermal Derating Chart

Model

Ambient Operation Temperature - I

-40 °C

-20 °C

0 °C

23 °C

40 °C

50 °C

60 °C

70 °C

85 °C

HVR250P080C/U

0.12

0.11

0.09

0.08

0.06

0.05

0.05

0.04

0.03

HVR250P080CF

0.12

0.11

0.09

0.08

0.06

0.05

0.05

0.04

0.03

HVR250P110U

0.17

0.15

0.13

0.11

0.09

0.08

0.07

0.05

0.04

HVR250P120C/U

0.18

0.16

0.14

0.12

0.10

0.09

0.08

0.06

0.05

HVR250P145C/U

0.26

0.20

0.17

0.145

0.12

0.11

0.09

0.08

0.06

HVR250P180C/U

0.27

0.23

0.21

0.18

0.15

0.13

0.19

0.11

0.083

HVR250P180CF

0.28

0.23

0.21

0.18

0.16

0.13

0.10

0.11

0.083

A : HVR250P180C / HVR250P180F

B : HVR250P145C

C : HVR250P120C

D : HVR250P080F

Average time-current curve

Part-numbering system

F: Tape and ammo packaging

Resistance Bin Range (05:0.5 Ohm, 10: 1.0 Ohm)

Rx: Resistance Range (x:A-Z or 1-9)

T: Pre-tripped device

F: Lead free device

C: Coated device / U: Uncoated device

Current Rating

Polyfuse

Voltage Rating

High Voltage Radial Device

Agency Specification

select a specific part number for

each application based on the

agency request

HVR

P

Product

Lightning

Power Cross

HVR250P080F ITU K.20/21/45 - 1.5 kV 10/700 μs

ITU K.20/21/45 - 230 V ac, 10 Ω

HVR250P120C

ITU K.20/21/45 - 4 kV 10/700 μs

ITU K.20/21/45 - 600 V ac, 600 Ω

HVR250P145C

HVR250P180C ITU K.20/21/45 - 1.5 kV 10/700 μs

ITU K.20/21/45 - 230 V ac, 10 Ω

HVR250P180F ITU K.20/21/45 - 4 kV 10/700 μs

ITU K.20/21/45 - 600 V ac, 600 Ω

Telcordia GR-974 - 1.0 kV 10/1000 μs Telcordia GR-974 - 283 V ac, 10 A