LF SERIES

High Performance Low Leakage Switch Mode EMI Filter

LF Series section filters offer enhanced differential mode (L/L) and common mode (L/G) insertion loss for applications subject to the conducted limits of FCC or CISPR/EN specifications while maintaining low ground leakage current.

The LF Series filter can function as a stand alone filter for switch mode applications or in conjunction with the power supply's internal EMI filter.

Available with a wide range of current ratings, the LF Series also offers a "B" circuit option to increase common mode (L/G) insertion loss (see Filter Order Information).

Schematic

Schematic-LF SERIES

click on the

to go the mechanical drawing

Part Number¹ Current Flange Connector End Mount Leakage²

LF2 2.0A -- .45mA

LF3 3.0A -- .45mA

LF5 5.0A -- .45mA

LF7 7.5A -- .45mA

LF10 10.0A -- -- .45mA

LF15 15.0A -- -- .45mA

LF20 20.0A -- -- .80mA

LF40L 40.0A -- 1.4mA

Rated Voltage: 250VAC, 50/60Hz

Test Voltage: Line to Line: 1.7 KVDC
Line to Gnd: 2.2 KVDC

Insertion Loss: (50 ohms, typical)

.05MHz .15MHz .50MHz 1.5MHz 5.0MHz 20MHz

L/L 6db 40db 60db 60db 60db 60db

L/G³ 18db 30db 42db 50db 50db 50db

1 Suffix "L" calls out low profile case, see Filter Order Information for complete part number
2 Each line to ground @ 250VAC/5OHz
3 "B" option can add up to 6db in application

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Part Number¹	Current	Flange	Connector	End Mount	Leakage²
LF2	2.0A			--	.45mA
LF3	3.0A			--	.45mA
LF5	5.0A			--	.45mA
LF7	7.5A			--	.45mA
LF10	10.0A		--	--	.45mA
LF15	15.0A		--	--	.45mA
LF20	20.0A		--	--	.80mA
LF40L	40.0A		--		1.4mA

Rated Voltage: 250VAC, 50/60Hz			Test Voltage: Line to Line: 1.7 KVDC Line to Gnd: 2.2 KVDC
Insertion Loss: (50 ohms, typical)

	.05MHz	.15MHz	.50MHz	1.5MHz	5.0MHz	20MHz
L/L	6db	40db	60db	60db	60db	60db
L/G³	18db	30db	42db	50db	50db	50db