Circuit Protection

MF-RM055/240-2

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Bourns Inc.

PTC RESET FUSE 240V 550MA RADIAL

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DocumentsMultifuse Product Guide Datasheet

Circuit Protection

MF-RM055/240-2

Active

Bourns Inc.

PTC RESET FUSE 240V 550MA RADIAL

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DocumentsMultifuse Product Guide Datasheet

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	MF-RM055/240-2

Approval Agency	cURus, TUV
Current - Hold (Ih) (Max) [Max]	550 mA
Current - Max [Max]	7 A
Current - Trip (It)	1.25 A
Height - Seated (Max) [Max]	22.4 mm
Height - Seated (Max) [Max]	0.882 "
Lead Spacing	0.114 "
Lead Spacing	2.9 mm
Mounting Type	Through Hole
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-20 ░C
Package / Case	Disc, Radial
Resistance - Initial (Ri) (Min) [Min]	450 mOhms
Resistance - Post Trip (R1) (Max) [Max]	1.45 Ohms
Size / Dimension [x]	0.551 in
Size / Dimension [x]	14 mm
Size / Dimension [y]	0.161 in
Size / Dimension [y]	4.1 mm
Time to Trip	26 s
Type	Polymeric
Voltage - Max [Max]	240 V
Voltage - Max [Max]	265 V

MF-RM Series

Part	Resistance - Initial (Ri) (Min) [Min]	Resistance - Post Trip (R1) (Max) [Max]	Mounting Type	Time to Trip	Package / Case	Current - Max [Max]	Voltage - Max [Max]	Voltage - Max [Max]	Current - Trip (It)	Lead Spacing	Lead Spacing	Type	Size / Dimension [diameter]	Size / Dimension [custom]	Current - Hold (Ih) (Max) [Max]	Operating Temperature [Max]	Operating Temperature [Min]	Height - Seated (Max) [Max] [z]	Height - Seated (Max) [Max] [z]	Approval Agency	Height - Seated (Max) [Max]	Height - Seated (Max) [Max]	Size / Dimension [x]	Size / Dimension [y]	Size / Dimension [y]	Size / Dimension [x]	Height - Seated (Max) [Max]	Size / Dimension [diameter]	Size / Dimension [z]	Size / Dimension [z]
Bourns Inc. MF-RM012/240-0	3 Ohms	12 Ohms	Through Hole	15 s	Disc Radial	1.2 A	240 V	265 V	300 mA	0.114 "	2.9 mm	Polymeric	0.327 in 8.3 mm	0.15 in 3.8 mm	120 mA	85 °C	-20 ░C	12.9 mm	0.508 in
Bourns Inc. MF-RM033/240-2	770 mOhms	2.6 Ohms	Through Hole	21 s	Disc Radial	4.5 A	240 V	265 V	740 mA	0.114 "	2.9 mm	Polymeric			330 mA	85 °C	-20 ░C			cURus TUV	0.787 in	20 mm	0.449 "	0.15 "	3.8 mm	11.4 mm
Bourns Inc. MF-RM016/240-2	2.5 Ohms	7.8 Ohms	Through Hole	15 s	Disc Radial	2 A	240 V	265 V	370 mA	0.201 in	5.1 mm	Polymeric	9.9 mm		160 mA	85 °C	-20 ░C				13.8 mm						0.543 in	0.39 in	0.15 in	3.8 mm
Bourns Inc. MF-RM055/240-0	450 mOhms	1.45 Ohms	Through Hole	26 s	Disc Radial	7 A	240 V	265 V	1.25 A	0.114 "	2.9 mm	Polymeric			550 mA	85 °C	-20 ░C			cURus TUV	22.4 mm		0.551 in	0.161 in	4.1 mm	14 mm	0.882 "
Bourns Inc. MF-RM033/240-0	770 mOhms	2.6 Ohms	Through Hole	21 s	Disc Radial	4.5 A	240 V	265 V	740 mA	0.114 "	2.9 mm	Polymeric			330 mA	85 °C	-20 ░C			cURus TUV	0.787 in	20 mm	0.449 "	0.15 "	3.8 mm	11.4 mm
Bourns Inc. MF-RM005/240-2	18.5 Ohms	65 Ohms	Through Hole	10 s	Disc Radial	1 A	240 V	265 V	120 mA	0.114 "	2.9 mm	Polymeric	0.327 in 8.3 mm	0.15 in 3.8 mm	50 mA	85 °C	-20 ░C	12.9 mm	0.508 in	cURus TUV
Bourns Inc. MF-RM055/240-2	450 mOhms	1.45 Ohms	Through Hole	26 s	Disc Radial	7 A	240 V	265 V	1.25 A	0.114 "	2.9 mm	Polymeric			550 mA	85 °C	-20 ░C			cURus TUV	22.4 mm		0.551 in	0.161 in	4.1 mm	14 mm	0.882 "

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	$ 1.14
		5	$ 1.10
		10	$ 1.03
		50	$ 0.85
		100	$ 0.71
		250	$ 0.69
		500	$ 0.59
	N/A	3486	$ 1.25
	Tape & Reel (TR)	1000	$ 0.52
		2000	$ 0.49
		3000	$ 0.48
		5000	$ 0.46
		10000	$ 0.44

Description

General part information

MF-RM Series

Polymeric PTC Resettable Fuse 240V (265V Int) 550 mA Ih Through Hole Radial, Disc

Documents

Technical documentation and resources

Multifuse Product Guide

Datasheet