POWER TRANSFORMER Power & Mains Transformers 344

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Part	Manufacturer	Transformer Type	Mounting Feature	Manufacturer Series	Approvals (V)	Terminal Finish	Center Tap Feature-2	No. of Functions	No. of Winding (Primary)	Isolation Voltage	Inductance (Primary)	Packing Method	Output Current-1	Minimum ET Product	Output Current-2	No. of Winding (Secondary)	Sub-Category	Dimensions	Volt-Ampere Rating (VA)	Maximum Operating Temperature	Center Tap Feature-1	Application	Output Voltage-2	Output Voltage-1	Minimum Operating Temperature	Nominal Operating Frequency	Rating (Primary)	Height	Width	Nominal Input Voltage (V)	Additional Features	JESD-609 Code	Length	Turns Ratio (Np:Ns)	Maximum Input Voltage (V)
10-6	Bel Fuse	POWER TRANSFORMER	CHASSIS MOUNT				YES			1500 V			6 A		6 A	2		L85.7XB69.9XH71.4 (mm)			YES		5 V	5 V		50/60 HZ	SINGLE 115V	71.4 mm	69.9 mm		THE TWO SECONDARIES HAVE CENTER TAPPED CONNECTIONS		85.7 mm
F-261U	Triad Magnetics	POWER TRANSFORMER	CHASSIS MOUNT		UL		NO		1	1500 V			8 A			1	Other Transformers	L87.3XB88.9XH104.77 (mm)	192 VA		YES	POWER		24 V		50/60 HZ	SINGLE 115V	104.77 mm	88.9 mm				87.3 mm		115
F-16X	Triad Magnetics	POWER TRANSFORMER	CHASSIS MOUNT		UL		NO		1	2500 V			3 A			1	Other Transformers	L84.12XB50.8XH49.2 (mm)	18.9 VA		YES	POWER		6.3 V		50/60 HZ	SINGLE 115V	49.2 mm	50.8 mm				84.12 mm		115
MA5632-ALB	Coilcraft	POWER TRANSFORMER	SURFACE MOUNT			Tin/Silver (Sn/Ag)	NO			2500 V		TR				2	Other Transformers	12.07mm x 8.1mm x 5.97mm		125 Cel	NO		3.3 V	5 V	-40 Cel		DUAL 3.3-5V	5.97 mm	8.1 mm			e2	10.3 mm
F-44X	Triad Magnetics	POWER TRANSFORMER	CHASSIS MOUNT		UL		NO		1	1500 V			1.5 A			1	Other Transformers	L101.6XB57.15XH65.86 (mm)	25.2 VA		YES	POWER		35 V		50/60 HZ	SINGLE 115V	65.86 mm	57.15 mm				101.6 mm		115
MA5632-ALD	Coilcraft	POWER TRANSFORMER	SURFACE MOUNT			Tin/Silver - Matte Tin - with Nickel barrier	NO			2500 V		TR, EMBOSSED PLASTIC, 13 INCH				2	Other Transformers	12.07mm x 8.1mm x 5.97mm		125 Cel	NO		3.3 V	5 V	-40 Cel		DUAL 3.3-5V	5.97 mm	8.1 mm				10.3 mm
F-118X	Triad Magnetics	POWER TRANSFORMER	CHASSIS MOUNT		UL		NO		1	1500 V			.7 A			1	Other Transformers	L82.55XB50.8XH50.8 (mm)	16.8 VA		YES	POWER		24 V		50/60 HZ	SINGLE 115V	50.8 mm	50.8 mm				82.55 mm		115
68-4	Bel Fuse	POWER TRANSFORMER	CHASSIS MOUNT	68			YES			1500 V			4 A		4 A	2		114.3mm X 114.3mm X 95.3mm			YES		34 V	34 V		50/60 HZ	SINGLE 115V	95.3 mm	114.3 mm		THE TWO SECONDARIES HAVE CENTER TAPPED CONNECTIONS		114.3 mm
10-25	Bel Fuse	POWER TRANSFORMER	CHASSIS MOUNT				YES			1500 V			50 A		25 A	2		L114.3XB95.3XH95.3 (mm)			YES		5 V	5 V		50/60 HZ	SINGLE 115V	95.3 mm	95.3 mm		THE TWO SECONDARIES HAVE CENTER TAPPED CONNECTIONS		114.3 mm
F-341X	Triad Magnetics	POWER TRANSFORMER	CHASSIS MOUNT		UL		NO		2	1500 V			2 A			1	Other Transformers	L101.6XB57.15XH65.86 (mm)	50.4 VA		YES	POWER		25.2 V		50/60 HZ	SINGLE 115/230V	65.86 mm	57.15 mm				101.6 mm
732	Hammond Manufacturing	POWER TRANSFORMER	CHASSIS MOUNT		CSA		NO									1			500 VA		YES			2500 V		50/60 HZ	SINGLE 115V			115					115
739	Hammond Manufacturing	POWER TRANSFORMER	CHASSIS MOUNT		CSA		NO									1			1610 VA		YES			3500 V		50/60 HZ	SINGLE 115V			115					115
10-12	Bel Fuse	POWER TRANSFORMER	CHASSIS MOUNT				YES			1500 V			12 A		12 A	2		L95.3XB82.6XH79.4 (mm)			YES		5 V	5 V		50/60 HZ	SINGLE 115V	79.4 mm	82.6 mm		THE TWO SECONDARIES HAVE CENTER TAPPED CONNECTIONS		95.3 mm
16-12	Bel Fuse	POWER TRANSFORMER	CHASSIS MOUNT	16			YES			1500 V			12 A		12 A	2		104.8mm X 98.4mm X 87.3mm			YES		8 V	8 V		50/60 HZ	SINGLE 115V	87.3 mm	98.4 mm		THE TWO SECONDARIES HAVE CENTER TAPPED CONNECTIONS		104.8 mm
SIM800	Block Transformatoren-elektronik	POWER TRANSFORMER	CHASSIS MOUNT		CUL; EAC; UL; VDE		NO									2			800 VA	40 Cel	NO		12 V	12 V		50-60 HZ	SINGLE 230V	166.116 mm	199.898 mm	230			282.956 mm
36-1	Bel Fuse	POWER TRANSFORMER	CHASSIS MOUNT	36			YES			1500 V			1 A		1 A	2		76.2mm X 69.9mm X 63.5mm			YES		18 V	18 V		50/60 HZ	SINGLE 115V	63.5 mm	69.9 mm		THE TWO SECONDARIES HAVE CENTER TAPPED CONNECTIONS		76.2 mm
36-2	Bel Fuse	POWER TRANSFORMER	CHASSIS MOUNT				YES			1500 V			2 A		2 A	2		85.7mm X 74.6mm X 71.4mm			YES		18 V	18 V		50/60 HZ	SINGLE 115V	71.4 mm	74.5 mm		THE TWO SECONDARIES HAVE CENTER TAPPED CONNECTIONS		85.7 mm
44272	Myrra Sas	POWER TRANSFORMER	THROUGH HOLE MOUNTED		EN; UL		NO						.556 A			2			10 VA	50 Cel	NO		9 V	9 V		50-60 HZ	SINGLE 230V	34.75 mm	42.5 mm	230			50.5 mm
56-25	Bel Fuse	POWER TRANSFORMER	CHASSIS MOUNT	56			YES			1500 V			25 A		25 A	2		162mm X 181mm X 134.9mm			YES		28 V	28 V		50/60 HZ	SINGLE 105/115/125V	134.9 mm	181 mm		THE TWO SECONDARIES HAVE CENTER TAPPED CONNECTIONS		162 mm
36-4	Bel Fuse	POWER TRANSFORMER	CHASSIS MOUNT	36			YES			1500 V			4 A		4 A	2		104.8mm X 85.7mm X 87.3mm			YES		18 V	18 V		50/60 HZ	SINGLE 115V	87.3 mm	85.7 mm		THE TWO SECONDARIES HAVE CENTER TAPPED CONNECTIONS		104.8 mm
F-219X	Triad Magnetics	POWER TRANSFORMER	CHASSIS MOUNT		UL		NO		1	1500 V			4 A			1	Other Transformers	L101.6XB57.15XH65.07 (mm)			NO	POWER		12 V		60 HZ	SINGLE 115V	65.07 mm	57.15 mm				101.6 mm		115
56-12	Bel Fuse	POWER TRANSFORMER	CHASSIS MOUNT				YES			1500 V			12 A		12 A	2		L162XB133.4XH134.9 (mm)			YES		28 V	28 V		50/60 HZ	SINGLE 105/115/125V	134.9 mm	133.4 mm		THE TWO SECONDARIES HAVE CENTER TAPPED CONNECTIONS		162 mm
DA2303-ALD	Coilcraft	POWER TRANSFORMER	SURFACE MOUNT		AEC-Q200	Tin/Silver - Tin - with Nickel barrier	NO			2500 V		TR, EMBOSSED PLASTIC, 13 INCH				2		L12.07XB10.0XH5.97 (mm)		125 Cel	NO		6 V	6 V	-40 Cel	150 KHZ	DUAL 5V	5.97 mm	8.1 mm	5			10.3 mm
44274	Myrra Sas	POWER TRANSFORMER	THROUGH HOLE MOUNTED		EN; UL		NO						.333 A			2			10 VA	50 Cel	NO		15 V	15 V		50-60 HZ	SINGLE 230V	34.75 mm	42.5 mm	230			50.5 mm
10-8	Bel Fuse	POWER TRANSFORMER	CHASSIS MOUNT				YES			1500 V			8 A		8 A	2		L85.7XB79.4XH71.4 (mm)			YES		5 V	5 V		50/60 HZ	SINGLE 115V	71.4 mm	79.4 mm		THE TWO SECONDARIES HAVE CENTER TAPPED CONNECTIONS		85.7 mm
10-4	Bel Fuse	POWER TRANSFORMER	CHASSIS MOUNT				YES			1500 V			4 A		4 A	2		L90.5XB60.3XH77.7 (mm)			YES		5 V	5 V		50/60 HZ	SINGLE 115V	77.7 mm	60.3 mm		THE TWO SECONDARIES HAVE CENTER TAPPED CONNECTIONS		90.5 mm
44091	Myrra Sas	POWER TRANSFORMER	THROUGH HOLE MOUNTED		CE; CSA; EN; UL; VDE		NO									2			1.5 VA	70 Cel	NO		6 V	6 V	-25 Cel	50/60 HZ	SINGLE 230V	23.8 mm	26.7 mm	230			31.7 mm
263CX	Hammond Manufacturing	POWER TRANSFORMER	CHASSIS MOUNT		CSA		YES			2000 V			3 A		.287 A	2			116 VA		YES		5 V	360 V		60 HZ	SINGLE 115V	77.724 mm	63.5 mm	115			95.25 mm
PM-DB2745S	Holt Integrated Circuits	POWER TRANSFORMER	SURFACE MOUNT			Tin/Lead (Sn/Pb)	NO			100 V						1		L23.62XB16.0XH3.937 (mm)		130 Cel	YES				-55 Cel			3.937 mm	16 mm			e0	23.62 mm
16-25	Bel Fuse	POWER TRANSFORMER	CHASSIS MOUNT	16			YES			1500 V			25 A		25 A	2		114.3mm X 136.5mm X 95.3mm			YES		8 V	8 V		50/60 HZ	SINGLE 115V	95.3 mm	136.5 mm		THE TWO SECONDARIES HAVE CENTER TAPPED CONNECTIONS		114.3 mm
24-50	Bel Fuse	POWER TRANSFORMER	CHASSIS MOUNT				YES			1500 V			50 A		50 A	2		L162XB158.8XH134.9 (mm)			YES		12 V	12 V		50/60 HZ	SINGLE 105/115/125V	134.9 mm	158.8 mm		THE TWO SECONDARIES HAVE CENTER TAPPED CONNECTIONS		162 mm
BPD2G	Hammond Manufacturing	POWER TRANSFORMER	PLUG-IN MOUNT		CSA; UL		NO						.83 A			1			20 VA		NO			24 V		60 HZ	SINGLE 120V			120
DA2303-ALB	Coilcraft	POWER TRANSFORMER	SURFACE MOUNT		AEC-Q200	Tin/Silver - Tin - with Nickel barrier	NO			2500 V		TR				2		L12.07XB10.0XH5.97 (mm)		125 Cel	NO		6 V	6 V	-40 Cel	150 KHZ	DUAL 5V	5.97 mm	8.1 mm	5			10.3 mm
F-45X	Triad Magnetics	POWER TRANSFORMER	CHASSIS MOUNT		UL		NO		1	1500 V			1.7 A			1	Other Transformers	L101.6XB57.15XH65.86 (mm)	24 VA		YES	POWER		26.8 V		50/60 HZ	SINGLE 115V	65.86 mm	57.15 mm				101.6 mm		115
4782-01	Api Technologies	POWER TRANSFORMER	CHASSIS MOUNT	4782			NO						10 A			1		L76.2XB69.85XH66.04 (mm)	450 VA		NO			5 V		60 HZ	SINGLE 115V	66.04 mm	69.85 mm				76.2 mm
VPP10-1000	Triad Magnetics	POWER TRANSFORMER	THROUGH HOLE MOUNTED		CE, CSA, CUL, TUV, UL		NO		2	4000 V			2 A		2 A	2		L47.62XB39.67XH34.92 (mm)	10 VA		NO	POWER	5 V	5 V		50/60 HZ	DUAL 115V	34.92 mm	39.67 mm	115/230			47.62 mm
PH100MLI	Hammond Power Solutions	POWER TRANSFORMER	CHASSIS MOUNT		CE, CUL		NO						.87 A		4.17 A	2			100 VA		NO		25 V	120 V		60 HZ	DUAL 240/480V	3.63 mm	3.25 mm	480/240			4.69 mm
ZA9368-AED	Coilcraft	POWER TRANSFORMER	SURFACE MOUNT		AEC-Q200		NO	1		3500 V	256 uH	TR, EMBOSSED PLASTIC, 13 INCH	.7 A	16 V-us		1				125 Cel	YES	ISOLATION		5 V	-40 Cel		SINGLE 3.3V	5.6 mm	8.5 mm	3.3	LENGTH & HEIGHT DIM INCLUDE TERMINAL ALSO		15.2 mm	1:1.75
74942302	Wurth Elektronik	POWER TRANSFORMER	SURFACE MOUNT		AEC-Q200		YES			4300 V		TR, EMBOSSED PLASTIC, 13 INCH				2				125 Cel	YES				-40 Cel			3.45 mm	14.7 mm	1000			15.1 mm
PH50MLI	Hammond Power Solutions	POWER TRANSFORMER	CHASSIS MOUNT		CE, CUL		NO						.43 A		2.08 A	2			50 VA		NO		25 V	120 V		60 HZ	DUAL 240/480V	3.56 mm	3.25 mm	480/240			4.06 mm
16-1	Bel Fuse	POWER TRANSFORMER	CHASSIS MOUNT	16			YES			1500 V			1 A		1 A	2		73mm X 50.8mm X 58.7mm			YES		8 V	8 V		50/60 HZ	SINGLE 115V	58.7 mm	50.8 mm		THE TWO SECONDARIES HAVE CENTER TAPPED CONNECTIONS		73 mm
74942300	Wurth Elektronik	POWER TRANSFORMER	SURFACE MOUNT		AEC-Q200		YES			4300 V		TR, EMBOSSED PLASTIC, 13 INCH				2				125 Cel	YES				-40 Cel			4.75 mm	14.2 mm	1000			15.1 mm
36-50	Bel Fuse	POWER TRANSFORMER	CHASSIS MOUNT	36			YES			1500 V			50 A		50 A	2		162mm X 184.2mm X 134.9mm			YES		18 V	18 V		50/60 HZ	DUAL 115V	134.9 mm	184.2 mm		THE TWO SECONDARIES HAVE CENTER TAPPED CONNECTIONS		162 mm
715	Hammond Manufacturing	POWER TRANSFORMER	CHASSIS MOUNT		CSA		NO									1			352 VA		YES			1020 V		50/60 HZ	SINGLE 115V			115					115
VPS28-6250	Triad Magnetics	POWER TRANSFORMER	CHASSIS MOUNT		CE, CSA, CUL, TUV, UL		NO		2	4000 V			12.5 A		12.5 A	2		L79.38XB71.42XH85.72 (mm)	175 VA		NO	POWER	14 V	14 V		50/60 HZ	DUAL 115V	85.72 mm	71.42 mm	115/230			79.38 mm
PH50MBMH	Hammond Power Solutions	POWER TRANSFORMER	CHASSIS MOUNT		CE, CUL		NO						.43 A			2			50 VA		NO		100 V	120 V		60 HZ		3.63 mm	3.25 mm	600/480/240			4.06 mm
VPL24-210	Triad Magnetics	POWER TRANSFORMER	CHASSIS MOUNT		CUL; TUV; UL		NO		2	3500 V			.42 A		.42 A	2		L60.32XB36.5XH36.5 (mm)	5 VA		NO	POWER	12 V	12 V		50/60 HZ	DUAL 115V	36.5 mm	36.5 mm	115/230			60.32 mm
PH75MLI	Hammond Power Solutions	POWER TRANSFORMER	CHASSIS MOUNT		CE, CUL		NO						.65 A		3.13 A	2			75 VA		NO		25 V	120 V		60 HZ	DUAL 240/480V	3.56 mm	3.25 mm	480/240			4.25 mm

Power & Mains Transformers

Power and mains transformers are types of electrical transformers used in power transmission and distribution systems to convert high voltage and low current to low voltage and high current or vice versa. They are essential components in the electricity grid, and are used to step up or step down voltage levels for efficient transmission and distribution of electrical energy.

Power transformers are used in high voltage transmission systems, typically at voltages of 110 kV and above, to step up or step down the voltage levels. They have a high power rating, typically ranging from several hundred kVA to several thousand MVA, and are designed to handle high currents and voltages without overheating or breaking down. Power transformers are typically oil-immersed, and use a magnetic core made of laminated steel to reduce losses and improve efficiency.

Mains transformers, also known as distribution transformers, are used in low voltage distribution systems, typically at voltages of 11 kV or below, to step down the voltage levels for use by consumers. They have a lower power rating than power transformers, typically ranging from several kVA to several hundred kVA, and are designed to operate at lower voltages and currents. Mains transformers are typically dry-type, and use a magnetic core made of laminated steel or ferrite to reduce losses and improve efficiency.

Both power and mains transformers require proper design, selection, and maintenance to ensure reliable and efficient operation. They are subject to various standards and regulations, such as IEC (International Electrotechnical Commission) and IEEE (Institute of Electrical and Electronics Engineers), to ensure their safety and performance. Proper installation and maintenance of transformers, such as regular inspection, testing, and oil analysis, are also critical to ensure their longevity and performance.