Inductors, Coils, Chokes

SRF1280-330M

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Bourns Inc.

COUPLED INDUCTORS 33UH 20% SMD 1280

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DocumentsSRF1280-330M | Datasheet

Inductors, Coils, Chokes

SRF1280-330M

Active

Bourns Inc.

COUPLED INDUCTORS 33UH 20% SMD 1280

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DocumentsSRF1280-330M | Datasheet

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	SRF1280-330M

Current Rating - Parallel	3.23 A
Current Rating - Series	1.61 A
Current Saturation - Parallel	6.22 A
Current Saturation - Series	3.11 A
DC Resistance (DCR) - Parallel [Max]	66.4 mOhm
DC Resistance (DCR) - Series	265 mOhm
Height [z]	8 mm
Height [z]	0.315 in
Inductance - Connected In Parallel	33 µH
Inductance - Connected In Series	132 µH
Mounting Type	Surface Mount
Number of Coils	2
Operating Temperature [Max]	125 °C
Operating Temperature [Min]	-40 C
Package / Case	Nonstandard
Shielding	Shielded
Size / Dimension [x]	12.5 mm
Size / Dimension [x]	0.492 "
Size / Dimension [y]	0.492 "
Size / Dimension [y]	12.5 mm
Tolerance	20 %

SRF1280 Series

Part	DC Resistance (DCR) - Series	DC Resistance (DCR) - Parallel	Current Saturation - Series	Current Saturation - Parallel	Size / Dimension [x]	Size / Dimension [y]	Size / Dimension [y]	Size / Dimension [x]	Current Rating - Series	Inductance - Connected In Parallel	Operating Temperature [Max]	Operating Temperature [Min]	Height [z]	Height [z]	Mounting Type	Inductance - Connected In Series	Number of Coils	Package / Case	Current Rating - Parallel	Tolerance	Shielding	DC Resistance (DCR) - Series [Max]	DC Resistance (DCR) - Parallel [Max]
Bourns Inc. SRF1280-8R2Y	71.4 mOhm	19.1 mOhm	6.09 A	12.2 A	12.5 mm	0.492 "	12.5 mm	0.492 "	3.16 A	8.2 µH	125 °C	-40 C	8 mm	0.315 in	Surface Mount	32.8 µH	2	Nonstandard	6.32 A	30 %	Shielded
Bourns Inc. SRF1280-3R3Y		11 mOhm	10.8 A	21.5 A	12.5 mm	0.492 "	12.5 mm	0.492 "	5.23 A	3.3 µH	125 °C	-40 C	8 mm	0.315 in	Surface Mount	13.2 µH	2	Nonstandard	10.4 A	30 %	Shielded	40 mOhm
Bourns Inc. SRF1280-6R8Y		18.3 mOhm	6.67 A	13.3 A	12.5 mm	0.492 "	12.5 mm	0.492 "	3.67 A	6.8 µH	125 °C	-40 C	8 mm	0.315 in	Surface Mount	27.2 µH	2	Nonstandard	7.34 A	30 %	Shielded	65.6 mOhm
Bourns Inc. SRF1280-680M	469 mOhm	123 mOhm	2.22 A	4.44 A	12.5 mm	0.492 "	12.5 mm	0.492 "	1.22 A	68 µH	125 °C	-40 C	8 mm	0.315 in	Surface Mount	272 µH	2	Nonstandard	2.44 A	20 %	Shielded
Bourns Inc. SRF1280-1R0Y			20 A	40 A	12.5 mm	0.492 "	12.5 mm	0.492 "	7.74 A	1 µH	125 °C	-40 C	8 mm	0.315 in	Surface Mount	4 µH	2	Nonstandard	15.5 A	30 %	Shielded	26 mOhm	6.7 mOhm
Bourns Inc. SRF1280-330M	265 mOhm		3.11 A	6.22 A	12.5 mm	0.492 "	12.5 mm	0.492 "	1.61 A	33 µH	125 °C	-40 C	8 mm	0.315 in	Surface Mount	132 µH	2	Nonstandard	3.23 A	20 %	Shielded		66.4 mOhm
Bourns Inc. SRF1280-100M			5.6 A	11.2 A	12.5 mm	0.492 "	12.5 mm	0.492 "		10 µH	125 °C	-40 C	8 mm	0.315 in	Surface Mount	40 µH	2	Nonstandard	6.04 A	20 %	Shielded	92.1 mOhm	24.1 mOhm
Bourns Inc. SRF1280-101M	701 mOhm	175 mOhm	1.82 A	3.64 A	12.5 mm	0.492 "	12.5 mm	0.492 "	980 mA	100 µH	125 °C	-40 C	8 mm	0.315 in	Surface Mount	400 µH	2	Nonstandard	1.96 A	20 %	Shielded
Bourns Inc. SRF1280-4R7Y		13.5 mOhm	8.24 A	16.5 A	12.5 mm	0.492 "	12.5 mm	0.492 "	4.13 A	4.7 µH	125 °C	-40 C	8 mm	0.315 in	Surface Mount	18.8 µH	2	Nonstandard	8.25 A	30 %	Shielded	50 mOhm
Bourns Inc. SRF1280-821M	5.896 Ohm		633 mA	1.27 A	12.5 mm	0.492 "	12.5 mm	0.492 "	325 mA	820 µH	125 °C	-40 C	8 mm	0.315 in	Surface Mount	3.28 mH	2	Nonstandard	650 mA	20 %	Shielded		1.632 Ohm

Pricing

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

Distributor	Package	Quantity	$

Digikey	N/A	1415	$ 1.74
Mouser	N/A	1	$ 1.50
		10	$ 1.19
		100	$ 1.02
		400	$ 0.89
		800	$ 0.76
		2400	$ 0.73

Description

General part information

SRF1280 Series

COUPLED INDUCTORS 33UH 20% SMD 1280

Documents

Technical documentation and resources

SRF1280-330M | Datasheet

Datasheet