Specification	1255AY-3R9N=P3

Current - Saturation (Isat)	4.7 A
Current Rating (Amps)	4.2 A
DC Resistance (DCR)	22 mOhm
Height - Seated (Max) [Max] [z]	4.5 mm
Height - Seated (Max) [Max] [z]	0.177 in
Inductance	3.9 µH
Inductance Frequency - Test	100 kHz
Material - Core	Ferrite
Mounting Type	Surface Mount
Operating Temperature [Max]	85 °C
Operating Temperature [Min]	-40 C
Package / Case	Nonstandard
Shielding	Shielded
Size / Dimension [x]	0.248 in
Size / Dimension [x]	6.3 mm
Size / Dimension [y]	0.248 in
Size / Dimension [y]	6.3 mm
Tolerance	30 %
Type	Drum Core, Wirewound

1255AY Series

Part	Inductance	Height - Seated (Max) [Max] [z]	Height - Seated (Max) [Max] [z]	Shielding	Material - Core	Size / Dimension [y]	Size / Dimension [x]	Size / Dimension [y]	Size / Dimension [x]	Current Rating (Amps)	Type	Current - Saturation (Isat)	Inductance Frequency - Test	Mounting Type	Package / Case	Tolerance	DC Resistance (DCR)	Operating Temperature [Max]	Operating Temperature [Min]
Murata Electronics 1255AY-100M=P3	10 µH	4.5 mm	0.177 in	Shielded	Ferrite	0.248 in	0.248 in	6.3 mm	6.3 mm	2.9 A	Drum Core Wirewound	3.1 A	100 kHz	Surface Mount	Nonstandard	20 %
Murata Electronics 1255AY-3R9N=P3	3.9 µH	4.5 mm	0.177 in	Shielded	Ferrite	0.248 in	0.248 in	6.3 mm	6.3 mm	4.2 A	Drum Core Wirewound	4.7 A	100 kHz	Surface Mount	Nonstandard	30 %	22 mOhm	85 °C	-40 C
Murata Electronics 1255AY-270M=P3	27 µH	4.5 mm	0.177 in	Shielded	Ferrite	0.248 in	0.248 in	6.3 mm	6.3 mm	1.8 A	Drum Core Wirewound	1.8 A	100 kHz	Surface Mount	Nonstandard	20 %	135 mOhm
Murata Electronics 1255AY-3R3N=P3	3.3 µH	4.5 mm	0.177 in	Shielded	Ferrite	0.248 in	0.248 in	6.3 mm	6.3 mm	4.4 A	Drum Core Wirewound	5.2 A	100 kHz	Surface Mount	Nonstandard	30 %	21 mOhm
Murata Electronics 1255AY-2R7N=P3	2.7 µH	4.5 mm	0.177 in	Shielded	Ferrite	0.248 in	0.248 in	6.3 mm	6.3 mm	4.6 A	Drum Core Wirewound	5.6 A	100 kHz	Surface Mount	Nonstandard	30 %	18 mOhm
Murata Electronics 1255AY-101M=P3	100 µH	4.5 mm	0.177 in	Shielded	Ferrite	0.248 in	0.248 in	6.3 mm	6.3 mm	900 mA	Drum Core Wirewound	900 mA	100 kHz	Surface Mount	Nonstandard	20 %	460 mOhm
Murata Electronics 1255AY-470M=P3	47 µH	4.5 mm	0.177 in	Shielded	Ferrite	0.248 in	0.248 in	6.3 mm	6.3 mm	1.3 A	Drum Core Wirewound	1.4 A	100 kHz	Surface Mount	Nonstandard	20 %	210 mOhm
Murata Electronics 1255AY-1R8N=P3	1.8 µH	4.5 mm	0.177 in	Shielded	Ferrite	0.248 in	0.248 in	6.3 mm	6.3 mm	5.3 A	Drum Core Wirewound	6.8 A	100 kHz	Surface Mount	Nonstandard	30 %	14 mOhm
Murata Electronics 1255AY-220M=P3	22 µH	4.5 mm	0.177 in	Shielded	Ferrite	0.248 in	0.248 in	6.3 mm	6.3 mm	1.9 A	Drum Core Wirewound	2 A	100 kHz	Surface Mount	Nonstandard	20 %	98 mOhm
Murata Electronics 1255AY-680M=P3	68 µH	4.5 mm	0.177 in	Shielded	Ferrite	0.248 in	0.248 in	6.3 mm	6.3 mm	1 A	Drum Core Wirewound	1.2 A	100 kHz	Surface Mount	Nonstandard	20 %	310 mOhm

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	$ 0.45
		10	$ 0.39
		25	$ 0.36
		50	$ 0.32
		100	$ 0.29
		250	$ 0.27
		500	$ 0.23
	Digi-Reel®	1	$ 0.45
		10	$ 0.39
		25	$ 0.36
		50	$ 0.32
		100	$ 0.29
		250	$ 0.27
		500	$ 0.23
	N/A	0	$ 0.00
	Tape & Reel (TR)	1500	$ 0.16
Newark	Each (Supplied on Cut Tape)	1	$ 0.58
		10	$ 0.46
		25	$ 0.44
		50	$ 0.41
		100	$ 0.39
		250	$ 0.37
		500	$ 0.35
		1000	$ 0.33

Description

General part information

1255AY Series

3.9 µH Shielded Drum Core, Wirewound Inductor 4.2 A 22mOhm Nonstandard

Documents

Technical documentation and resources

Technical Data Sheet EN

Datasheet

Product Change Notice EN

Datasheet