MF-R250-AP

Active

Bourns Inc.

RESETTABLE FUSE, PTC, THERMISTOR, HOLDING CURRENT 2.50 AMPERE, TRIPPING CURRENT 5.00 AMPERE, RESET TIME 10.3 SECONDS

Deep-Dive with AI

Search across all available documentation for this part.

DocumentsMultifuse Product Guide Datasheet +1

MF-R250-AP

Active

Bourns Inc.

RESETTABLE FUSE, PTC, THERMISTOR, HOLDING CURRENT 2.50 AMPERE, TRIPPING CURRENT 5.00 AMPERE, RESET TIME 10.3 SECONDS

Deep-Dive with AI

DocumentsMultifuse Product Guide Datasheet +1

Specifications Pricing Series Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	MF-R250-AP

Approval Agency	cURus, TUV
Current - Hold (Ih) (Max) [Max]	2.5 A
Current - Max [Max]	40 A
Current - Trip (It)	5 A
Height - Seated (Max) [Max]	18.3 mm
Height - Seated (Max) [Max]	0.72 in
Lead Spacing	5.1 mm
Lead Spacing	0.201 in
Mounting Type	Through Hole
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 °C
Package / Case	Disc, Radial
Resistance - Initial (Ri) (Min) [Min]	25 mOhms
Resistance - Post Trip (R1) (Max) [Max]	70 mOhms
Size / Dimension [x]	12 mm
Size / Dimension [x]	0.472 in
Size / Dimension [y]	3 mm
Size / Dimension [y]	0.118 in
Time to Trip	10.3 s
Type	Polymeric
Voltage - Max [Max]	30 V

MF-R250 Series

Part	Voltage - Max [Max]	Approval Agency	Height - Seated (Max) [Max]	Height - Seated (Max) [Max]	Current - Hold (Ih) (Max) [Max]	Current - Max [Max]	Mounting Type	Resistance - Initial (Ri) (Min) [Min]	Time to Trip	Resistance - Post Trip (R1) (Max) [Max]	Current - Trip (It)	Operating Temperature [Max]	Operating Temperature [Min]	Package / Case	Type	Lead Spacing	Lead Spacing	Size / Dimension [y]	Size / Dimension [x]	Size / Dimension [y]	Size / Dimension [x]
Bourns Inc. MF-R250U-2	30 V	cURus TUV	18.3 mm	0.72 in	2.5 A	40 A	Through Hole	25 mOhms	10.3 s	70 mOhms	5 A	85 °C	-40 °C	Disc Radial	Polymeric	5.1 mm	0.201 in	3 mm	12 mm	0.118 in	0.472 in
Bourns Inc. MF-R250U	30 V	cURus TUV	18.3 mm	0.72 in	2.5 A	40 A	Through Hole	25 mOhms	10.3 s	70 mOhms	5 A	85 °C	-40 °C	Disc Radial	Polymeric	5.1 mm	0.201 in	3 mm	12 mm	0.118 in	0.472 in
Bourns Inc. MF-R250-0-10	30 V	cURus TUV	18.3 mm	0.72 in	2.5 A	40 A	Through Hole	25 mOhms	10.3 s	70 mOhms	5 A	85 °C	-40 °C	Disc Radial	Polymeric	5.1 mm	0.201 in	3 mm	12 mm	0.118 in	0.472 in
Bourns Inc. MF-R250-AP	30 V	cURus TUV	18.3 mm	0.72 in	2.5 A	40 A	Through Hole	25 mOhms	10.3 s	70 mOhms	5 A	85 °C	-40 °C	Disc Radial	Polymeric	5.1 mm	0.201 in	3 mm	12 mm	0.118 in	0.472 in
Bourns Inc. MF-R250-0-010	30 V	cURus TUV	18.3 mm	0.72 in	2.5 A	40 A	Through Hole	25 mOhms	10.3 s	70 mOhms	5 A	85 °C	-40 °C	Disc Radial	Polymeric	5.1 mm	0.201 in	3 mm	12 mm	0.118 in	0.472 in
Bourns Inc. MF-R250-2	30 V	cURus TUV	18.3 mm	0.72 in	2.5 A	40 A	Through Hole	25 mOhms	10.3 s	70 mOhms	5 A	85 °C	-40 °C	Disc Radial	Polymeric	5.1 mm	0.201 in	3 mm	12 mm	0.118 in	0.472 in
Bourns Inc. MF-R250-AP-10-99	30 V	cURus TUV	18.3 mm	0.72 in	2.5 A	40 A	Through Hole	25 mOhms	10.3 s	70 mOhms	5 A	85 °C	-40 °C	Disc Radial	Polymeric	5.1 mm	0.201 in	3 mm	12 mm	0.118 in	0.472 in
Bourns Inc. MF-R250-2-99	30 V	cURus TUV	18.3 mm	0.72 in	2.5 A	40 A	Through Hole	25 mOhms	10.3 s	70 mOhms	5 A	85 °C	-40 °C	Disc Radial	Polymeric	5.1 mm	0.201 in	3 mm	12 mm	0.118 in	0.472 in
Bourns Inc. MF-R250-AP-99	30 V	cURus TUV	18.3 mm	0.72 in	2.5 A	40 A	Through Hole	25 mOhms	10.3 s	70 mOhms	5 A	85 °C	-40 °C	Disc Radial	Polymeric	5.1 mm	0.201 in	3 mm	12 mm	0.118 in	0.472 in

Pricing

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

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 0.81
		5	$ 0.79
		10	$ 0.76
		50	$ 0.64
		100	$ 0.53
		250	$ 0.48
		500	$ 0.41
	Tape & Box (TB)	1000	$ 0.30
Newark	Each (Supplied on Full Reel)	1	$ 0.42
		5000	$ 0.41
		10000	$ 0.38
		20000	$ 0.36
		30000	$ 0.33
		50000	$ 0.32

Description

General part information

MF-R250 Series

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

Documents

Technical documentation and resources

Multifuse Product Guide

Datasheet

Product Change Notice EN

Datasheet