RUEF250U

Active

LITTELFUSE

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

RUEF250U

Active

LITTELFUSE

PTC RESETTABLE FUSE 2.5A(HOLD) 5A(TRIP) 30VAC/30VDC 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

Polymeric PTC Resettable Fuse 30V 2.5 A Ih Through Hole Radial, Disc

Technical Specifications

Parameters and characteristics for this part

Specification	RUEF250U

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
Operating Temperature (Max)	85 °C
Operating Temperature (Min)	-40 °C
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

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CAD

3D models and CAD resources for this part

Documents

Technical documentation and resources

Datasheet

RUEF250U | Datasheet

PolySwitch, Radial-leaded Catalog

Datasheet