Circuit Protection

RHEF400-2

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RESETTABLE FUSES - PPTC RHEF400-2

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Circuit Protection

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RESETTABLE FUSES - PPTC RHEF400-2

Technical Specifications

Parameters and characteristics for this part

Specification	RHEF400-2

Current - Hold (Ih) (Max) [Max]	4 A
Current - Max [Max]	100 A
Current - Trip (It)	7.5 A
Height - Seated (Max) [Max] [z]	15 mm
Height - Seated (Max) [Max] [z]	0.591 "
Lead Spacing	5.05 mm
Lead Spacing	0.199 "
Mounting Type	Through Hole
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-40 C
Package / Case	Disc, Radial
Resistance - Initial (Ri) (Min) [Min]	24 mOhms
Resistance - Post Trip (R1) (Max) [Max]	60 mOhms
Size / Dimension [x]	10 mm
Size / Dimension [x]	0.394 in
Size / Dimension [y]	0.118 in
Size / Dimension [y]	3 mm
Time to Trip	5 s
Type	Polymeric
Voltage - Max [Max]	16 V

Part	Resistance - Post Trip (R1) (Max) [Max]	Resistance - Initial (Ri) (Min) [Min]	Voltage - Max [Max]	Mounting Type	Height - Seated (Max) [Max] [z]	Height - Seated (Max) [Max] [z]	Lead Spacing	Lead Spacing	Current - Trip (It)	Operating Temperature [Max]	Operating Temperature [Min]	Current - Max [Max]	Time to Trip	Size / Dimension [x]	Size / Dimension [x]	Size / Dimension [y]	Size / Dimension [y]	Current - Hold (Ih) (Max) [Max]	Type	Package / Case
LITTELFUSE RHEF400-2	60 mOhms	24 mOhms	16 V	Through Hole	15 mm	0.591 "	5.05 mm	0.199 "	7.5 A	125 °C	-40 C	100 A	5 s	10 mm	0.394 in	0.118 in	3 mm	4 A	Polymeric	Disc Radial
LITTELFUSE RHEF1100	13 mOhms	5.5 mOhms	16 V	Through Hole	26.1 mm	1.028 in	10.15 mm	0.4 "	20 A	125 °C	-40 C	100 A	11 s	21 mm	0.827 "	0.118 in	3 mm	11 A	Polymeric	Disc Radial

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

General part information

RESETTABLE FUSES - PPTC RHEF400-2

Technical documentation and resources