FSA-300MA

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OptiFuse

FUSE GLASS 300MA 250VAC 3AB 3AG

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FSA-300MA

Active

OptiFuse

FUSE GLASS 300MA 250VAC 3AB 3AG

Deep-Dive with AI

DocumentsDatasheet

Specifications Pricing Series Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	FSA-300MA

Approval Agency	UL 248, cULus
Breaking Capacity @ Rated Voltage	100 A
Current Rating (Amps)	300 mA
Melting I˛t	0.0215
Melting I²t	0.0215
Mounting Type	Requires Holder
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-55 °C
Package / Case	3AB, 3AG
Package / Case [x]	1/4
Package / Case [y]	1-1/4
Response Time	Fast Blow
Size / Dimension [diameter]	6.35 mm
Size / Dimension [diameter]	0.25 in
Size / Dimension [z]	1.252 in
Size / Dimension [z]	31.8 mm
Voltage Rating - AC	250 V

FSA Series

Part	Voltage Rating - AC	Response Time	Mounting Type	Approval Agency	Operating Temperature [Min]	Operating Temperature [Max]	Breaking Capacity @ Rated Voltage	Melting I²t	Current Rating (Amps)	Size / Dimension [z]	Size / Dimension [z]	Size / Dimension [diameter]	Size / Dimension [diameter]	Package / Case	Package / Case [y]	Package / Case [x]	Melting I˛t	Voltage Rating - DC	Size / Dimension [x]	Size / Dimension [x]
OptiFuse FSA-300MA	250 V	Fast Blow	Requires Holder	cULus UL 248	-55 °C	125 °C	100 A	0.0215	300 mA	1.252 in	31.8 mm	6.35 mm	0.25 in	3AB 3AG	1-1/4	1/4	0.0215
OptiFuse FSA-20A	250 V	Fast Blow	Requires Holder	cURus UL 248	-55 °C	125 °C	300 A		20 A	1.252 in	31.8 mm	6.35 mm	0.25 in	3AB 3AG	1-1/4	1/4	2000	32 V
OptiFuse FSA-125MA	250 V	Fast Blow	Requires Holder	cULus UL 248	-55 °C	125 °C	100 A		125 mA	1.252 in	31.8 mm	6.35 mm	0.25 in	3AB 3AG	1-1/4	1/4	0.00373
OptiFuse FSA-P-5A	250 V	Fast Blow	Through Hole	cULus UL 248	-55 °C	125 °C	200 A		5 A			6.85 mm	0.27 in	3AB 3AG	1-1/4	1/4	72.54		32.4 mm	1.276 in
OptiFuse FSA-30A	250 V	Fast Blow	Requires Holder	cURus UL 248	-55 °C	125 °C	300 A		30 A	1.252 in	31.8 mm	6.35 mm	0.25 in	3AB 3AG	1-1/4	1/4		32 V
OptiFuse FSA-1.6A	250 V	Fast Blow	Requires Holder	cULus UL 248	-55 °C	125 °C	100 A		1.6 A	1.252 in	31.8 mm	6.35 mm	0.25 in	3AB 3AG	1-1/4	1/4	4.026
OptiFuse FSA-1.5A	250 V	Fast Blow	Requires Holder	cULus UL 248	-55 °C	125 °C	100 A		1.5 A	1.252 in	31.8 mm	6.35 mm	0.25 in	3AB 3AG	1-1/4	1/4	3.565
OptiFuse FSA-3.5A	250 V	Fast Blow	Requires Holder	cULus UL 248	-55 °C	125 °C	100 A		3.5 A	1.252 in	31.8 mm	6.35 mm	0.25 in	3AB 3AG	1-1/4	1/4	32.15
OptiFuse FSA-15A	250 V	Fast Blow	Requires Holder	cURus UL 248	-55 °C	125 °C	300 A		15 A	1.252 in	31.8 mm	6.35 mm	0.25 in	3AB 3AG	1-1/4	1/4	787.5	32 V
OptiFuse FSA-250MA	250 V	Fast Blow	Requires Holder	cULus UL 248	-55 °C	125 °C	100 A		0.25 A	1.252 in	31.8 mm	6.35 mm	0.25 in	3AB 3AG	1-1/4	1/4	0.0123

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	$ 0.98
		10	$ 0.94
		25	$ 0.87
		50	$ 0.76
		100	$ 0.71
		250	$ 0.67
		500	$ 0.62
		1000	$ 0.60

Description

General part information

FSA Series

300 mA 250 V AC DC Fuse Cartridge, Glass Requires Holder 3AB, 3AG, 1/4" x 1-1/4"

Documents

Technical documentation and resources