SMPS Transformers

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Part	Manufacturer	Transformer Type	Mounting Feature	Approvals (V)	Terminal Finish	Power Rating	No. of Winding (Primary)	Inductance (Primary)	Packing Method	No. of Winding (Secondary)	Sub-Category	Dimensions	Maximum Operating Temperature	Output Voltage-2	Output Voltage-1	Minimum Operating Temperature	Height	Width	Nominal Input Voltage (V)	Additional Features	Minimum Input Voltage (V)	JESD-609 Code	Minimum Operating Frequency	Length	Maximum Operating Frequency	Maximum Input Voltage (V)
760390014	Wurth Elektronik	SMPS TRANSFORMER	SURFACE MOUNT	AEC-Q200; CUL; UL	TIN SILVER		1	475 uH	TR, EMBOSSED PLASTIC, 13 INCH	1		L7.14XB6.73XH4.19 (mm)	125 Cel		5 V	-40 Cel	4.19 mm	6.73 mm		HEIGHT DIMENSION INCLUDING TERMINALS		e2	300 KHz	7.14 mm	620 KHz
760390015	Wurth Elektronik	SMPS TRANSFORMER	SURFACE MOUNT	AEC-Q200; CUL; UL	TIN SILVER		1	475 uH	TR, EMBOSSED PLASTIC, 13 INCH	1			125 Cel		5 V	-40 Cel	4.19 mm	6.73 mm	3.3			e2	250 KHz	7.14 mm	550 KHz
YA9036-ALD	Coilcraft	SMPS TRANSFORMER	SURFACE MOUNT			6 W	1	24 uH	TR, EMBOSSED PLASTIC, 13 INCH	2			85 Cel		24 V	-40 Cel	10.6 mm	9.3 mm		HEIGHT AND WIDTH DIMENSIONS INCLUDE TERMINALS ALSO, FLYBACK	4			10.2 mm		65
78253/55MVC	Murata Manufacturing	SMPS TRANSFORMER	SURFACE MOUNT		Matte Tin (Sn)	1 W	1	600 uH	TUBE	1		L9.52XB9.0XH6.35 (mm)	85 Cel		5 V	-40 Cel	6.35 mm	9 mm	5			e3		9.52 mm	500 KHz
YA9033-ALD	Coilcraft	SMPS TRANSFORMER	SURFACE MOUNT			6 W	1	25.6 uH	TR, EMBOSSED PLASTIC, 13 INCH	2			85 Cel		8 V	-40 Cel	10.6 mm	9.3 mm		HEIGHT AND WIDTH DIMENSIONS INCLUDE TERMINALS ALSO, FLYBACK	4			10.2 mm		65
YA9035-ALD	Coilcraft	SMPS TRANSFORMER	SURFACE MOUNT			6 W	1	24 uH	TR, EMBOSSED PLASTIC, 13 INCH	2			85 Cel		15 V	-40 Cel	10.6 mm	9.3 mm		HEIGHT AND WIDTH DIMENSIONS INCLUDE TERMINALS ALSO, FLYBACK	4			10.2 mm		65
750313638	Wurth Elektronik	SMPS TRANSFORMER	SURFACE MOUNT	AEC-Q200; CSA; CUL; UL	TIN SILVER		1	340 uH	TR, EMBOSSED PLASTIC, 13 INCH	1		L9.14XB8.0XH7.62 (mm)	125 Cel		5 V	-40 Cel	7.62 mm	8 mm	5	HEIGHT DIMENSION INCLUDES TERMINALS ALSO		e2		9.14 mm
YA9034-ALD	Coilcraft	SMPS TRANSFORMER	SURFACE MOUNT			6 W	1	28.8 uH	TR, EMBOSSED PLASTIC, 13 INCH	2			85 Cel		12 V	-40 Cel	10.6 mm	9.3 mm		HEIGHT AND WIDTH DIMENSIONS INCLUDE TERMINALS ALSO, FLYBACK	4			10.2 mm		65
760390012	Wurth Elektronik	SMPS TRANSFORMER	SURFACE MOUNT	AEC-Q200; CUL; UL	Tin/Silver (Sn/Ag)		1	475 uH	TR, EMBOSSED PLASTIC, 13 INCH	1		L7.14XB6.73XH4.19 (mm)	125 Cel		5 V	-40 Cel	4.19 mm	6.73 mm	5			e2	300 KHz	7.14 mm	620 KHz
YA9037-ALD	Coilcraft	SMPS TRANSFORMER	SURFACE MOUNT			6 W	1	25.6 uH	TR, EMBOSSED PLASTIC, 13 INCH	2			85 Cel		48 V	-40 Cel	10.6 mm	9.3 mm		HEIGHT AND WIDTH DIMENSIONS INCLUDE TERMINALS ALSO, FLYBACK	4			10.2 mm		65
ZA9672-BED	Coilcraft	SMPS TRANSFORMER	SURFACE MOUNT	AEC-Q200	TIN SILVER COPPER	12 W	2	7 uH	TR, EMBOSSED PLASTIC, 13 INCH	2			85 Cel		12 V	-40 Cel	10 mm	10.92 mm		HEIGHT AND LENGTH DIMENSION INCLUDES TERMINAL ALSO	4	e1		13.21 mm	300 KHz	42
NA5871-AL	Coilcraft	SMPS TRANSFORMER	SURFACE MOUNT			800 W	1	42 uH	TRAY	1			120 Cel		54 V	-40 Cel	13.5 mm	32.8 mm			38			48.5 mm		60
750313970	Wurth Elektronik	SMPS TRANSFORMER	SURFACE MOUNT	IEC			1	40 uH	TR, EMBOSSED PLASTIC, 13 INCH	2			125 Cel	3.3 V	3.3 V	-40 Cel	11.43 mm	13.34 mm		LENGTH AND HEIGHT DIMENSION INCLUDES TERMINALS ALSO	18		200 KHz	15.24 mm	300 KHz	42
ZA9674-BED	Coilcraft	SMPS TRANSFORMER	SURFACE MOUNT	AEC-Q200		12 W	2	9 uH	TR, EMBOSSED PLASTIC, 13 INCH	2			85 Cel		48 V	-40 Cel	10 mm	10.92 mm		HEIGHT AND LENGTH DIMENSION INCLUDES TERMINAL ALSO	4			13.21 mm	300 KHz	42
750311600	Wurth Elektronik	SMPS TRANSFORMER	SURFACE MOUNT				2	12 uH	TR	2	Other Transformers	L29.08XB23.11XH11.43 (mm)	125 Cel		15 V	-40 Cel	11.43 mm	23.11 mm			30			29.64 mm		75
ZA9709-AED	Coilcraft	SMPS TRANSFORMER	SURFACE MOUNT	AEC-Q200	TIN SILVER COPPER/TIN OVER NICKEL		1	145 uH	TR, EMBOSSED PLASTIC, 13 INCH	1			125 Cel		3.3 V	-40 Cel	4.34 mm	8.82 mm	3.3	LENGTH & HEIGHT DIM INCLUDE TERMINAL ALSO				13 mm
749196530	Wurth Elektronik	SMPS TRANSFORMER	SURFACE MOUNT		TIN SILVER COPPER		3	4.3 uH	TR, EMBOSSED PLASTIC, 13 INCH	3	Other Transformers	L29.5XB21.0XH10.8 (mm)	125 Cel			-40 Cel	10.8 mm	21 mm		HEIGHT DIM INCLUDE TERMINAL ALSO		e1		21 mm
749196311	Wurth Elektronik	SMPS TRANSFORMER	SURFACE MOUNT				3	23.3 uH	TR, EMBOSSED PLASTIC, 13 INCH	3	Other Transformers	L22.1XB17.5XH8.3 (mm)	125 Cel			-40 Cel	8.3 mm	16 mm		HEIGHT DIM INCLUDE TERMINAL ALSO				17.5 mm
ZA9671-BED	Coilcraft	SMPS TRANSFORMER	SURFACE MOUNT	AEC-Q200		12.5 W	2	9 uH	TR, EMBOSSED PLASTIC, 13 INCH	2			85 Cel		5 V	-40 Cel	10 mm	10.92 mm		HEIGHT AND LENGTH DIMENSION INCLUDES TERMINAL ALSO	4			13.21 mm	300 KHz	42
ZA9670-BED	Coilcraft	SMPS TRANSFORMER	SURFACE MOUNT	AEC-Q200		11.55 W	2	9 uH	TR, EMBOSSED PLASTIC, 13 INCH	2			85 Cel		3.3 V	-40 Cel	10 mm	10.92 mm		HEIGHT AND LENGTH DIMENSION INCLUDES TERMINAL ALSO	4			13.21 mm	300 KHz	42
ZA9673-BED	Coilcraft	SMPS TRANSFORMER	SURFACE MOUNT	AEC-Q200		12 W	2	7 uH	TR, EMBOSSED PLASTIC, 13 INCH	2			85 Cel		24 V	-40 Cel	10 mm	10.92 mm		HEIGHT AND LENGTH DIMENSION INCLUDES TERMINAL ALSO	4			13.21 mm	300 KHz	42
750315371	Wurth Elektronik	SMPS TRANSFORMER	SURFACE MOUNT	AEC-Q200; CSA; EN; IEC; UL	Tin/Silver (Sn/Ag)		1	72 uH	TR, EMBOSSED PLASTIC, 13 INCH	1		L9.25XB8.31XH4.09 (mm)	125 Cel		5 V	-40 Cel	4.1 mm	8.3 mm		TURNS RATIO: 1:1.1	4.5	e2		9.25 mm		5.5
750311607	Wurth Elektronik	SMPS TRANSFORMER	SURFACE MOUNT				2	14 uH	TR	3		L29.08XB23.11XH11.43 (mm)	125 Cel		12 V	-40 Cel	11.43 mm	23.11 mm			30			29.64 mm		75
749119650	Wurth Elektronik	SMPS TRANSFORMER	SURFACE MOUNT				1	100 uH		2			125 Cel	5 V	5 V	-40 Cel	14.5 mm	14 mm		LENGTH AND HEIGHT DIMENSION INCLUDE TERMINAL ALSO	33			17.65 mm		57
B78304B1032A003	TDK	SMPS TRANSFORMER	SURFACE MOUNT		TIN			10000 uH	TR, BLISTER, 13 INCH				85 Cel			-40 Cel	5.7 mm	7 mm		TURNS RATIO: 1:1:1		e3	10 KHz	8 mm	1600 KHz
760390013	Wurth Elektronik	SMPS TRANSFORMER	SURFACE MOUNT	AEC-Q200	Tin/Silver (Sn/Ag)		1	475 uH	TR, EMBOSSED PLASTIC, 13 INCH	1			125 Cel		5 V	-40 Cel	4.19 mm	6.73 mm	3.3			e2	250 KHz	7.14 mm	550 KHz
7491195212	Wurth Elektronik	SMPS TRANSFORMER	SURFACE MOUNT				1	21 uH		2			125 Cel	12 V	12 V	-40 Cel	14.5 mm	14 mm		LENGTH AND HEIGHT DIMENSION INCLUDE TERMINAL ALSO	9			17.65 mm		57
760871135	Wurth Elektronik	SMPS TRANSFORMER	SURFACE MOUNT				1	1250 uH	TR, EMBOSSED PLASTIC, 13 INCH	2			125 Cel	12 V	12 V	-40 Cel	13.5 mm	16.6 mm		HEIGHT DIMENSION INCLUDES TERMINAL ALSO	85			20.6 mm		265
7491195112	Wurth Elektronik	SMPS TRANSFORMER	SURFACE MOUNT				1	41 uH		2			125 Cel	12 V	12 V	-40 Cel	14.5 mm	14 mm		LENGTH AND HEIGHT DIMENSION INCLUDE TERMINAL ALSO	33			17.65 mm		57
750315240	Wurth Elektronik	SMPS TRANSFORMER	SURFACE MOUNT	AEC-Q200; CSA; EN; IEC; UL			1	440 uH	TR, EMBOSSED PLASTIC, 13 INCH	1			125 Cel		5 V	-40 Cel	11.89 mm	10.41 mm	5	HEGHT DIM INCLUDES TERMINAL ALSO				12.32 mm
PA2047NL	Pulse Electronics	SMPS TRANSFORMER	SURFACE MOUNT				2	7.2 uH		1		L29.21XB21.84XH11.43 (mm)	130 Cel	3.3 V	5 V	-40 Cel	11.43 mm	21.84 mm		LENGTH & HEIGHT DIMENSION INCLUDES TERMINAL ALSO	9			29.21 mm	250 KHz	36
HA4018-AL	Coilcraft	SMPS TRANSFORMER	THROUGH HOLE MOUNTED		Tin/Silver (Sn/Ag)		1	2200 uH	TRAY	3		L20.9XB20.9XH12.0 (mm)	85 Cel	5 V	15 V	-40 Cel	12.4 mm	20.9 mm				e2		20.9 mm
78253/55VC	Murata Manufacturing	SMPS TRANSFORMER	THROUGH HOLE MOUNT			1 W	1	190 uH	TUBE	1			85 Cel		5 V	-40 Cel	6.35 mm	9 mm	5					9.52 mm	500 KHz
PA0367ANLT	Pulse Electronics	SMPS TRANSFORMER	SURFACE MOUNT				1	18 uH	TR	1			130 Cel			-40 Cel	5.2 mm	11.68 mm		LENGTH AND WIDTH DIMENSION INCLUDE TERMINAL ALSO				11.68 mm
PA6383-ALD	Coilcraft	SMPS TRANSFORMER	SURFACE MOUNT			5 W	2	29.7 uH	TR, EMBOSSED PLASTIC, 13 INCH	2			85 Cel		5 V	-40 Cel	9.02 mm	8.6 mm	5	HEIGHT DIMENSION INCLUDES TERMINALS ALSO				10.92 mm
GA3459-BL	Coilcraft	SMPS TRANSFORMER	SURFACE MOUNT		Tin/Silver - Tin - with Nickel barrier		4	5 uH	TRAY	1		L26.75XB26.0XH14.0 (mm)	125 Cel		500 V	-40 Cel	14 mm	26 mm		HEIGHT DIM INCLUDE TERMINAL ALSO	5			26.75 mm		24
749119533	Wurth Elektronik	SMPS TRANSFORMER	SURFACE MOUNT				1	54 uH		2			125 Cel	3.3 V	3.3 V	-40 Cel	14.5 mm	14 mm		LENGTH AND HEIGHT DIMENSION INCLUDE TERMINAL ALSO	33			17.65 mm		57
750311599	Wurth Elektronik	SMPS TRANSFORMER	SURFACE MOUNT				2	8 uH	TR	2	Other Transformers	L29.08XB23.11XH11.43 (mm)	125 Cel		15 V	-40 Cel	11.43 mm	23.11 mm			20			29.64 mm		48
7491196212	Wurth Elektronik	SMPS TRANSFORMER	SURFACE MOUNT				1	128 uH		2			125 Cel	12 V	12 V	-40 Cel	14.5 mm	14 mm		LENGTH AND HEIGHT DIMENSION INCLUDE TERMINAL ALSO	9			17.65 mm		57
PA5130.002NLT	Pulse Electronics	SMPS TRANSFORMER	SURFACE MOUNT			25 W	2	80 uH	TR, 13 INCH	2			125 Cel	5 V	5 V	-40 Cel	15.5 mm	13 mm		HEIGHT DIM INCLUDE TERMINAL ALSO	33			14.2 mm	200 KHz	57
PH9185.011NLT	Pulse Electronics	SMPS TRANSFORMER	SURFACE MOUNT			3 W	1	750 uH	TR, 13 INCH	1			125 Cel			-40 Cel	12.5 mm	10 mm		LENGTH & HEIGHT DIM INCLUDE TERMINAL ALSO				13 mm
FA2443-AL	Coilcraft	SMPS TRANSFORMER	THROUGH HOLE MOUNTED		Tin/Silver (Sn/Ag)	120 W	1	200 uH	TRAY	2		L45.72XB38.10XH29.21 (mm)	85 Cel	19.4 V	19.4 V	-40 Cel	29.21 mm	38.1 mm			85	e2		45.72 mm		265
ETH1-230LD	Coilcraft	SMPS TRANSFORMER	SURFACE MOUNT		Tin/Silver/Copper -Matte Tin -with Nickel barrier		2	350 uH	TR, EMBOSSED PLASTIC, 13 INCH	2		L16.51XB14.73XH7.0 (mm)	85 Cel			-40 Cel	7 mm	14.73 mm						16.51 mm
78253/55C	Murata Manufacturing	SMPS TRANSFORMER	THROUGH HOLE MOUNT			1 W	1	600 uH	TUBE	1			85 Cel		5 V	-40 Cel	6.35 mm	9 mm	5					9.52 mm	500 KHz
PA5130.001NLT	Pulse Electronics	SMPS TRANSFORMER	SURFACE MOUNT			25 W	2	80 uH	TR, 13 INCH	2			125 Cel	3.3 V	3.3 V	-40 Cel	15.5 mm	13 mm		HEIGHT DIM INCLUDE TERMINAL ALSO	33			14.2 mm	200 KHz	57
FA2636-ALD	Coilcraft	SMPS TRANSFORMER	SURFACE MOUNT		Tin/Silver - Tin - with Nickel barrier		1	160 uH	TR, EMBOSSED PLASTIC, 13 INCH	2		L17.75XB13.46XH12.32 (mm)	85 Cel		5 V	-40 Cel	12.7 mm	13 mm		HEIGHT DIM INCLUDE TERMINAL ALSO				13.46 mm
HA4061-AL	Coilcraft	SMPS TRANSFORMER	THROUGH HOLE MOUNTED		Tin/Silver - Tin - with Nickel barrier		2	125 uH	TRAY	2		L29.8XB27.9XH25.3 (mm)	85 Cel		500 V	-40 Cel	25.3 mm	27.9 mm			120			29.8 mm		377
ZB1053-AED	Coilcraft	SMPS TRANSFORMER	SURFACE MOUNT	AEC-Q200		7.5 W	2	12.5 uH	TR, EMBOSSED PLASTIC, 13 INCH	2			85 Cel		15 V	-40 Cel	10 mm	10.92 mm		LENGTH AND HEIGHT DIMENSION INCLUDE TERMINAL ALSO	4			13.21 mm	300 KHz	42

SMPS Transformers

Switched-mode power supply (SMPS) transformers are a type of transformer used in power electronics to convert AC voltage to DC voltage with high efficiency. They are commonly used in applications such as computer power supplies, LED lighting, and motor drives.

The basic principle of an SMPS transformer is to use a high-frequency switching circuit to convert the input voltage to a high-frequency AC voltage, which is then rectified and filtered to produce the DC output voltage. The SMPS transformer is a critical component in the switching circuit, and is designed to handle high frequencies and high voltages without overheating or breaking down.

SMPS transformers are typically designed with a ferrite core, which has a high magnetic permeability and low magnetic losses at high frequencies. The core is usually in the form of a toroid, pot core, or E-core, and is wound with one or more coils to create the primary and secondary windings of the transformer.

The primary winding of the SMPS transformer is connected to the input AC voltage, while the secondary winding is connected to the rectifier and filter circuit, which produces the DC output voltage. The number of turns and the size of the wire used in the windings are determined by the required voltage transformation ratio and the frequency range of the circuit.