RUEF250

Active

LITTELFUSE

PTC RESETTABLE FUSE 2.5A(HOLD) 5A(TRIP) 30V 100A 1.2W 10.3S 0.02OHM RADIAL 11.4 X 3 X 18.3MM BAG

RUEF250

Active

LITTELFUSE

PTC RESETTABLE FUSE 2.5A(HOLD) 5A(TRIP) 30V 100A 1.2W 10.3S 0.02OHM RADIAL 11.4 X 3 X 18.3MM BAG

Description Specifications Series Pricing CAD Documents

Description

General part information

RUEF Series

The RUEF250 from TE Connectivity is a radial leaded PolySwitch resettable device. It provides engineers with more design flexibility. The higher voltage ratings allow this device to use in new applications and it is compatible with high volume electronics assembly.

Technical Specifications

Parameters and characteristics for this part

Specification	RUEF250

Approval Agency	CSA, TUV, UL, CQC
Current - Hold (Ih) (Max)	2.5 A
Current - Max	100 A
Current - Trip (It)	5 A
Height - Seated (Max)	0.72 in
Lead Spacing	0.199 in
Mounting Type	Through Hole
Package / Case	Disc, Radial
Resistance - Initial (Ri) (Min)	20 mOhms
Resistance - Post Trip (R1) (Max)	70 mOhms
Size / Dimension Length	0.449 in
Size / Dimension Width	0.118 in
Time to Trip	10.3 s
Type	Polymeric
Voltage - Max	30 V

RUEF Series

Part	Current - Max	Lead Spacing	Size / Dimension Width	Size / Dimension Length	Type	Mounting Type	Voltage - Max	Resistance - Initial (Ri) (Min)	Height - Seated (Max)	Resistance - Post Trip (R1) (Max)	Operating Temperature (Min)	Operating Temperature (Max)	Current - Hold (Ih) (Max)	Time to Trip	Current - Trip (It)	Package / Case	Approval Agency	Size / Dimension Diameter	Size / Dimension Thickness
LITTELFUSE RUEF160S	100 A	0.199 in	0.118 in	0.35 in	Polymeric	Through Hole	30 V	30 mOhms	0.598 in	110 mOhms	-40 °C	85 °C	1.6 A	8 s	3.2 A	Disc Radial	CQC CSA TUV UL
LITTELFUSE RUEF250	100 A	0.199 in	0.118 in	0.449 in	Polymeric	Through Hole	30 V	20 mOhms	0.72 in	70 mOhms			2.5 A	10.3 s	5 A	Disc Radial	CQC CSA TUV UL
LITTELFUSE RUEF090-2	100 A	0.2 in	0.118 in	0.291 in	Polymeric	Through Hole	30 V	70 mOhms	0.48 in	220 mOhms	-40 °C	85 °C	900 mA	5.9 s	1.8 A	Disc Radial
LITTELFUSE RUEF250U	100 A	0.199 in	0.118 in	0.449 in	Polymeric	Through Hole	30 V	20 mOhms	0.72 in	70 mOhms	-40 °C	85 °C	2.5 A	10.3 s	5 A	Disc Radial	CQC CSA TUV UL
LITTELFUSE RUEF090-AP	100 A	0.199 in	0.118 in	0.291 in	Polymeric	Through Hole	30 V	70 mOhms	0.48 in	220 mOhms	-40 °C	85 °C	900 mA	5.9 s	1.8 A	Disc Radial
LITTELFUSE RUEF700K	100 A	0.4 in	0.118 in	0.752 in	Polymeric	Through Hole	30 V	5 mOhms	1.091 in	30 mOhms	-40 °C	85 °C	7 A	17.5 s	14 A	Disc Radial
LITTELFUSE RUEF300K-2	100 A	0.199 in	0.118 in	0.449 in	Polymeric	Through Hole	30 V	20 mOhms	0.71 in	80 mOhms	-40 °C	85 °C	3 A	10.8 s	6 A	Disc Radial	CQC CSA TUV UL
LITTELFUSE RUEF400K-2	100 A	0.199 in	0.118 in	0.551 in	Polymeric	Through Hole	30 V	10 mOhms	0.839 in	50 mOhms	-40 °C	85 °C	4 A	12.7 s	8 A	Disc Radial
LITTELFUSE RUEF110-2	100 A	0.199 in			Polymeric	Through Hole	30 V	70 mOhms	0.559 in	170 mOhms	-40 °C	85 °C	1.1 A	6.6 s	2.2 A	Disc Radial		0.291 in	0.118 in
LITTELFUSE RUEF600K	100 A	0.4 in	0.118 in	0.65 in	Polymeric	Through Hole	30 V	5 mOhms	1.032 in	0.04 Ohms	-40 °C	85 °C	6 A	16 s	12 A	Disc Radial

Pricing

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

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

Product Change Notice EN

RUEF250 | Datasheet

PolySwitch, Radial-leaded Catalog

Datasheet