Circuit Protection

MF-LR550

Active

Bourns Inc.

PTC RESET FUSE 10V 5.5A STRAP

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Search across all available documentation for this part.

DocumentsMultifuse Product Guide Datasheet

Circuit Protection

MF-LR550

Active

Bourns Inc.

PTC RESET FUSE 10V 5.5A STRAP

Deep-Dive with AI

DocumentsMultifuse Product Guide Datasheet

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	MF-LR550

Approval Agency	cURus, TUV
Current - Hold (Ih) (Max) [Max]	5.5 A
Current - Max [Max]	100 A
Current - Trip (It)	10.5 A
Mounting Type	User Defined
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 C
Package / Case	Strap
Resistance - Initial (Ri) (Min) [Min]	9 mOhms
Resistance - Post Trip (R1) (Max) [Max]	22 mOhms
Size / Dimension [x]	1.417 in
Size / Dimension [x]	36 mm
Size / Dimension [y]	0.283 in
Size / Dimension [y]	7.2 mm
Thickness (Max) [Max]	1 mm
Thickness (Max) [Max]	0.039 in
Time to Trip	5 s
Type	Polymeric
Voltage - Max [Max]	10 V

MF-LR Series

Part	Approval Agency	Voltage - Max [Max]	Thickness (Max) [Max]	Thickness (Max) [Max]	Package / Case	Resistance - Post Trip (R1) (Max) [Max]	Current - Trip (It)	Type	Time to Trip	Size / Dimension [y]	Size / Dimension [y]	Size / Dimension [x]	Size / Dimension [x]	Mounting Type	Current - Hold (Ih) (Max)	Resistance - Initial (Ri) (Min) [Min]	Operating Temperature [Max]	Operating Temperature [Min]	Current - Max [Max]	Current - Hold (Ih) (Max) [Max]
Bourns Inc. MF-LR900/20-0	cURus TUV	20 V	1.3 mm	0.051 in	Strap	14 mOhms	16.7 A	Polymeric	5 s	8.2 mm	0.323 in	46.5 mm	1.831 in	User Defined	9 A	6 mOhms	85 °C	-40 C	100 A
Bourns Inc. MF-LR600	cURus TUV	10 V	1 mm	0.039 in	Strap	19 mOhms	11.7 A	Polymeric	5 s	14.9 mm	0.587 "	25 mm	0.984 "	User Defined		7 mOhms	85 °C	-40 C	100 A	6 A
Bourns Inc. MF-LR380	cURus TUV	15 V	1 mm	0.039 in	Strap	37 mOhms	8.3 A	Polymeric	5 s	7.2 mm	0.283 in	25 mm	0.984 "	User Defined		13 mOhms	85 °C	-40 C	100 A	3.8 A
Bourns Inc. MF-LR190	cURus TUV	15 V	1 mm	0.039 in	Strap	102 mOhms	3.9 A	Polymeric	5 s	5.05 mm	0.199 in	21 mm	0.827 "	User Defined		39 mOhms	85 °C	-40 C	100 A	1.9 A
Bourns Inc. MF-LR600S	cURus TUV	10 V	1 mm	0.039 in	Strap	19 mOhms	11.7 A	Polymeric	5 s	14.9 mm	0.587 "	25 mm	0.984 "	User Defined		7 mOhms	85 °C	-40 C	100 A	6 A
Bourns Inc. MF-LR450	cURus TUV	16 V	1 mm	0.039 in	Strap	28 mOhms	8.9 A	Polymeric	5 s	10.21 mm	0.402 in	25 mm	0.984 "	User Defined	4.5 A	11 mOhms	85 °C	-40 C	100 A
Bourns Inc. MF-LR190S	cURus TUV	15 V	1 mm	0.039 in	Strap	102 mOhms	3.9 A	Polymeric	5 s	5.05 mm	0.199 in	21 mm	0.827 "	User Defined		39 mOhms	85 °C	-40 C	100 A	1.9 A
Bourns Inc. MF-LR550	cURus TUV	10 V	1 mm	0.039 in	Strap	22 mOhms	10.5 A	Polymeric	5 s	7.2 mm	0.283 in	36 mm	1.417 in	User Defined		9 mOhms	85 °C	-40 C	100 A	5.5 A
Bourns Inc. MF-LR730/20-0	cURus TUV	20 V	1 mm	0.039 in	Strap	15 mOhms	14.1 A	Polymeric	5 s	14.2 mm	0.559 in	28.1 mm	1.106 "	User Defined		6 mOhms	85 °C	-40 C	100 A	7.3 A

Pricing

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

Distributor	Package	Quantity	$

Digikey	Bulk	1	$ 0.94
		5	$ 0.91
		10	$ 0.85
		50	$ 0.70
		100	$ 0.59
		250	$ 0.57
		500	$ 0.48
		1000	$ 0.42
		5000	$ 0.38
	N/A	2056	$ 1.05

Description

General part information

MF-LR Series

Polymeric PTC Resettable Fuse 10V 5.5 A Ih User Defined Strap

Documents

Technical documentation and resources

Multifuse Product Guide

Datasheet