SMPS Transformers

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Part	Manufacturer	Transformer Type	Mounting Feature	Manufacturer Series	Approvals (V)	Terminal Finish	Power Rating	No. of Functions	No. of Winding (Primary)	Isolation Voltage	Inductance (Primary)	Packing Method	Output Current-1	Output Current-2	Maximum DC Unbalance Current	No. of Winding (Secondary)	Sub-Category	Dimensions	Maximum Operating Temperature	Application	Output Voltage-2	Output Voltage-1	Minimum Operating Temperature	Height	Width	Nominal Input Voltage (V)	Load Resistance	Additional Features	Minimum Input Voltage (V)	JESD-609 Code	Minimum Operating Frequency	Length	Turns Ratio (Np:Ns)	Maximum Operating Frequency	Maximum Input Voltage (V)
7508112514	Wurth Elektronik	SMPS TRANSFORMER	THROUGH HOLE MOUNTED			Tin/Silver (Sn/Ag)			1		460 uH	TRAY				1			125 Cel			32 V	-40 Cel	14.81 mm	26.3 mm				120	e2	68 KHz	33 mm		110 KHz	375
PA1137NLT	Pulse Electronics	SMPS TRANSFORMER	SURFACE MOUNT				13.5 W		2		126.7 uH	TAPE & REEL				1		L14.0XB17.65XH12.07 (mm)	130 Cel			5 V	-40 Cel	12.07 mm	17.65 mm			BREADTH DIM INCLUDES TERMINAL ALSO, FLYBACK TRANSFORMER	33			14 mm		200 KHz	57
PA6605-AL	Coilcraft	SMPS TRANSFORMER	SURFACE MOUNT			Matte Tin (Sn) - with Nickel (Ni) barrier			1		10 uH	TRAY				1			125 Cel			12 V	-40 Cel	13.6 mm	26.67 mm			LENGTH AND BREADTH DIMENSIONS INCLUDE TERMINAL ALSO	9	e3		30 mm			60
31620	Pico Electronics	SMPS TRANSFORMER	SURFACE MOUNT			Tin/Lead (Sn/Pb)	3 W		3							2			70 Cel		5 V	10 V	-55 Cel	7.87 mm	10.16 mm	24		HEIGHT DIM INCLUDE TERMINAL ALSO		e0		10.16 mm
750311307	Wurth Elektronik	SMPS TRANSFORMER	SURFACE MOUNT	750311307		TIN SILVER			2		100 uH	TAPE & REEL	.5 A		1900 mA	1	Other Transformers	15.24mm X 13.34mm X 11.43mm	125 Cel	POWER	24 V	24 V	-40 Cel	11.43 mm	13.34 mm		.104 ohm	LENGTH & HEIGHT DIM INCLUDE TERMINAL ALSO, TURNS RATIO: 6:1; 2:1		e2		15.24 mm			36
750316031	Wurth Elektronik	SMPS TRANSFORMER	SURFACE MOUNT		AEC-Q200; CSA; EN; IEC; UL				1		370 uH	TR, EMBOSSED PLASTIC, 13 INCH				1			125 Cel			3.3 V	-40 Cel	11.89 mm	10.41 mm	3.3		HEGHT DIM INCLUDES TERMINAL ALSO				12.32 mm
7508110210	Wurth Elektronik	SMPS TRANSFORMER	THROUGH HOLE MOUNT						1		2000 uH	TRAY				2		L15.75XB15.0XH18.5 (mm)	125 Cel			11 V	-40 Cel	18.5 mm	15 mm				120			15.75 mm			200
B78416A2232A003	TDK	SMPS TRANSFORMER	SURFACE MOUNT						1		3000 uH	TR, BLISTER, 15 INCH				1			85 Cel				-40 Cel	7.1 mm	7.6 mm			HEIGHT DIM INCLUDE TERMINAL ALSO				8.8 mm		52 KHz
CTX02-14659	Eaton Corporation	SMPS TRANSFORMER	SURFACE MOUNT	CTX02-14659			2.5 W		1	1250 V	547 uH			.2 A		2	Other Transformers	L10.0XB12.0XH6.2 (mm)			5 V			6.2 mm	12 mm	5			5			10 mm	1:1.375:1.375	300 KHz
PA5131.005NLT	Pulse Electronics	SMPS TRANSFORMER	SURFACE MOUNT				35 W		2		13 uH	TR, 13 INCH				2			130 Cel		5 V	5 V	-40 Cel	15.5 mm	13 mm			HEIGHT DIM INCLUDE TERMINAL ALSO	9			14.2 mm		200 KHz	57
PH0808CNLT	Pulse Electronics	SMPS TRANSFORMER	SURFACE MOUNT				160 W		3		240 uH	TR				2			125 Cel				-40 Cel	10.1 mm	21.59 mm			LENGTH AND BREADTH DIMENSIONS INCLUDE TERMINAL ALSO			200 KHz	24.65 mm		700 KHz
PM2155.011NL	Pulse Electronics	SMPS TRANSFORMER	SURFACE MOUNT		AEC-Q200				2		3200 uH	TRAY				2			125 Cel				-40 Cel	7.5 mm	16 mm			LENGTH, WIDTH AND HEIGHT DIMENSION INCLUDE TERMINAL ALSO				17 mm
74030	Power Integrations	SMPS TRANSFORMER	THROUGH HOLE MOUNTED				22 W		1		750 uH					2					4.6 V	6 V		21 mm	27 mm				90			27 mm			120
7491181112	Wurth Elektronik	SMPS TRANSFORMER	THROUGH HOLE MOUNTED			TIN OVER NICKEL		1	1	4000 V	2800 uH	TRAY	.25 A			1	Other Transformers	L21.5XB15.0XH12.0 (mm)	125 Cel	GENERAL PURPOSE		12 V	-40 Cel	12 mm	15 mm		.29 ohm	LENGTH DIMENSION INCLUDES TERMINAL ALSO	85	e3		21.5 mm	8.1:1		265
750310799	Wurth Elektronik	SMPS TRANSFORMER	SURFACE MOUNT			Tin (Sn) - with Nickel (Ni) barrier			1		25 uH	TR				1		L9.78XB9.14XH10.54 (mm)	125 Cel			15 V	-40 Cel	10.54 mm	9.14 mm				10	e3		9.78 mm			30
750313626	Wurth Elektronik	SMPS TRANSFORMER	SURFACE MOUNT		AEC-Q200; CSA; EN; IEC; 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	3.3		TURNS RATIO: 1:2		e2		9.14 mm
782485/35C	Murata Manufacturing	SMPS TRANSFORMER	THROUGH HOLE MOUNT						1			TUBE				1								6.35 mm	9.14 mm							9.77 mm
78250JC	Murata Manufacturing	SMPS TRANSFORMER	SURFACE MOUNT						1			TUBE				1								6.35 mm	9 mm							12.7 mm
78253/55JC-R	Murata Manufacturing	SMPS TRANSFORMER	SURFACE MOUNT			MATTE TIN			1			TR				1								6.35 mm	9 mm					e3		12.7 mm
PA0801NL	Pulse Electronics	SMPS TRANSFORMER	SURFACE MOUNT				140 W		2		153 uH	TRAY				1	Other Transformers	L23.37XB21.6XH8.6 (mm)	125 Cel				-40 Cel	8.6 mm	21.6 mm						200 KHz	23.37 mm		700 KHz
PA1131NLT	Pulse Electronics	SMPS TRANSFORMER	SURFACE MOUNT				3 W		2		500 uH	TAPE & REEL				1		L10.67XB13.34XH9.27 (mm)	125 Cel		5 V	8 V	-40 Cel	9.27 mm	13.34 mm			BREADTH & HEIGHT DIM INCLUDES TERMINALS ALSO	33			10.67 mm		200 KHz	57
PA2398NLT	Pulse Electronics	SMPS TRANSFORMER	SURFACE MOUNT						2		100 uH	TAPE & REEL				1		L29.21XB21.84XH11.43 (mm)	130 Cel			12 V	-40 Cel	11.43 mm	21.84 mm			LENGTH & HEIGHT DIMENSION INCLUDES TERMINAL ALSO	36			29.21 mm		250 KHz	72
PA2517NL	Pulse Electronics	SMPS TRANSFORMER	THROUGH HOLE MOUNTED						2		1200 uH					1		L18.2XB16.0XH18.0 (mm)	130 Cel			12 V	-40 Cel	18 mm	16 mm			FLYBACK TRANSFORMER	100			18.2 mm		60 KHz	400
PA5100.006NLT	Pulse Electronics	SMPS TRANSFORMER	SURFACE MOUNT				27 W		2		11 uH	TR, 13 INCH				2			125 Cel			12 V	-40 Cel	15.5 mm	11 mm			HEIGHT DIM INCLUDE TERMINAL ALSO	9			12.5 mm		200 KHz	57
PH0256NL	Pulse Electronics	SMPS TRANSFORMER	THROUGH HOLE MOUNTED						3		2800 uH					1			125 Cel			5 V	-40 Cel	14.5 mm	16.5 mm				80			19 mm		132 KHz	375
PH0259NL	Pulse Electronics	SMPS TRANSFORMER	THROUGH HOLE MOUNTED						1		1800 uH					1			125 Cel			24 V	-40 Cel	18 mm	16 mm							18.3 mm
PH0270NL	Pulse Electronics	SMPS TRANSFORMER	THROUGH HOLE MOUNTED						2		876 uH					2			125 Cel			12 V	-40 Cel	27.94 mm	18.8 mm				85			28.45 mm		132 KHz	265
PL160-100L	Coilcraft	SMPS TRANSFORMER	SURFACE MOUNT		AEC-Q200	Matte Tin (Sn) - with Nickel (Ni) barrier	160 W		2		246 uH	TRAY				1			125 Cel				-40 Cel	8.94 mm	20.83 mm	48		LENGTH DIM INCLUDES TERMINAL ALSO	36	e3	200 KHz	23.37 mm		700 KHz	72
PL160-100LD	Coilcraft	SMPS TRANSFORMER	SURFACE MOUNT		AEC-Q200	MATTE TIN OVER NICKEL	160 W		2		246 uH	TR, EMBOSSED PLASTIC, 13 INCH				1			125 Cel				-40 Cel	8.94 mm	20.83 mm	48		LENGTH DIM INCLUDES TERMINAL ALSO	36	e3	200 KHz	23.37 mm		700 KHz	72
PLA51LA32	Vishay Intertechnology	SMPS TRANSFORMER	CHASSIS MOUNT				2000 W		1		128 uH	BULK				1			125 Cel			30 V	-55 Cel	22 mm	53 mm			LENGTH AND BREADTH DIMENSIONS INCLUDE TERMINAL ALSO	50			70 mm		100 KHz	110
2013	Hammond Manufacturing	SMPS TRANSFORMER	CHASSIS MOUNT				25 W		1							1								77.724 mm	63.5 mm						.15 KHz	69.85 mm		7 KHz
749196111	Wurth Elektronik	SMPS TRANSFORMER	SURFACE MOUNT			TIN SILVER COPPER			3		27.4 uH	TR, EMBOSSED PLASTIC, 13 INCH				3	Other Transformers	L12.9XB9.2XH6.2 (mm)	125 Cel				-40 Cel	6.2 mm	9.2 mm			HEIGHT DIM INCLUDE TERMINAL ALSO		e1		12.9 mm
750310471	Wurth Elektronik	SMPS TRANSFORMER	SURFACE MOUNT			TIN SILVER			1		25 uH	TR, EMBOSSED PLASTIC, 13 INCH				1	Other Transformers	L15.24XB13.34XH11.43 (mm)	125 Cel			5 V	-40 Cel	11.43 mm	13.34 mm			LENGTH AND HEIGHT DIMENSION INCLUDES TERMINALS ALSO	9	e2		15.24 mm			30
750310617	Wurth Elektronik	SMPS TRANSFORMER	SURFACE MOUNT						1		4.5 uH	TR, EMBOSSED PLASTIC, 13 INCH				1		L29.08XB23.11XH11.43 (mm)	125 Cel			12 V	-40 Cel	11.43 mm	23.11 mm			LENGTH & HEIGHT DIM INCLUDE TERMINAL ALSO	9			29.08 mm			36
750311880	Wurth Elektronik	SMPS TRANSFORMER	SURFACE MOUNT			TIN SILVER			1		2.5 uH	TR				2		L9.78XB9.14XH10.54 (mm)	125 Cel		5 V	5 V	-40 Cel	10.54 mm	9.5 mm			BREADTH AND HEIGHT DIMENSION INCLUDES TERMINALS ALSO	3	e2	200 KHz	9.78 mm		600 KHz	6
782482/53VC	Murata Manufacturing	SMPS TRANSFORMER	THROUGH HOLE MOUNT						1			TUBE				1								6.35 mm	9.14 mm							9.77 mm
CX9721-ALD	Coilcraft	SMPS TRANSFORMER	SURFACE MOUNT						1		10 uH	TR, EMBOSSED PLASTIC, 13 INCH				1			125 Cel			5 V	-40 Cel	5.97 mm	10 mm			LENGTH AND HEIGHT DIMENSION INCLUDE TERMINAL ALSO	5			17.07 mm			20
HA00-10043BLFTR	Tt Electronics Plc	SMPS TRANSFORMER	SURFACE MOUNT		AEC-Q200				1		51 uH	TR, 13 INCH				1			155 Cel			22 V	-40 Cel	6.3 mm	12.65 mm			HEIGHT AND WIDTH DIMENSIONS INCLUDE TERMINALS ALSO	8			12 mm			18
HM110-C3W4V5LFTR	Tt Electronics Plc	SMPS TRANSFORMER	SURFACE MOUNT				3 W		2		225 uH	TR, 13 INCH				1			125 Cel				-40 Cel	8 mm	14 mm			LENGTH, WIDTH AND HEIGHT DIMENSION INCLUDE TERMINAL ALSO				22.5 mm
JA4456-DLB	Coilcraft	SMPS TRANSFORMER	SURFACE MOUNT				25 W		2		70 uH	TR				3			125 Cel		5 V	5 V	-40 Cel	12.7 mm	20.57 mm				36			21 mm			57
JA4456-DLD	Coilcraft	SMPS TRANSFORMER	SURFACE MOUNT			Tin/Silver - Matte Tin - with Nickel barrier	25 W		2		70 uH	TR, EMBOSSED PLASTIC, 13 INCH				3			125 Cel		5 V	5 V	-40 Cel	12.7 mm	20.57 mm				36			21 mm			57
PA0491NLT	Pulse Electronics	SMPS TRANSFORMER	SURFACE MOUNT				100 W		1		140 uH	TAPE & REEL				1		L23.37XB20.07XH8.6 (mm)	125 Cel			5 V	-40 Cel	8.6 mm	20.07 mm			48V OUTPUT VOLTAGE IS ALSO AVAILABLE			200 KHz	23.37 mm		700 KHz
PA0805NL	Pulse Electronics	SMPS TRANSFORMER	SURFACE MOUNT				140 W		2		345 uH	TRAY				1	Other Transformers	L23.37XB21.6XH8.6 (mm)	125 Cel				-40 Cel	8.6 mm	21.6 mm						200 KHz	23.37 mm		700 KHz
PA0806NL	Pulse Electronics	SMPS TRANSFORMER	SURFACE MOUNT				140 W		2		153 uH	TRAY				2		L23.37XB21.6XH8.6 (mm)	125 Cel				-40 Cel	8.6 mm	21.6 mm						200 KHz	23.37 mm		700 KHz
PA3964.001NL	Pulse Electronics	SMPS TRANSFORMER	SURFACE MOUNT				10 W		2		15.6 uH					1			130 Cel			12 V	-40 Cel	7.1 mm	15.6 mm			LENGTH, WIDTH AND HEIGHT DIMENSION INCLUDE TERMINAL ALSO	36			16.5 mm		200 KHz	72
PA3964.001NLT	Pulse Electronics	SMPS TRANSFORMER	SURFACE MOUNT				10 W		2		15.6 uH	TR				1			130 Cel			12 V	-40 Cel	7.1 mm	15.6 mm			LENGTH, WIDTH AND HEIGHT DIMENSION INCLUDE TERMINAL ALSO	36			16.5 mm		200 KHz	72
PA3964.002NL	Pulse Electronics	SMPS TRANSFORMER	SURFACE MOUNT				10 W		2		.51 uH					2			130 Cel			12 V	-40 Cel	7.1 mm	15.6 mm			LENGTH, WIDTH AND HEIGHT DIMENSION INCLUDE TERMINAL ALSO	10			16.5 mm		200 KHz	14
PA3964.002NLT	Pulse Electronics	SMPS TRANSFORMER	SURFACE MOUNT				10 W		2		.51 uH	TR				2			130 Cel			12 V	-40 Cel	7.1 mm	15.6 mm			LENGTH, WIDTH AND HEIGHT DIMENSION INCLUDE TERMINAL ALSO	10			16.5 mm		200 KHz	14

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.