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SMPS Transformers

Switch mode power supply (SMPS) transformers are a highly efficient form of transformer, used in devices like personal computers.

A switch mode power supply is an electronic power supply that incorporates a switching regulator to efficiently convert electrical power. Like other power supplies, an SMPS transfers power from a DC or AC source (which is often mains power) to DC loads, such as a personal computer, while converting voltage and current characteristics.

How do switch mode power supply (SMPS) transformers work?

Any switched-mode power supply that gets its power from an AC power line (also known as an 'off-line' converter) requires a transformer for galvanic isolation, which prevents current flow. Some DC-to-DC converters may also include a transformer.

SMPS transformers run at high frequency. Most of the cost savings (as well as space savings) in off-line power supplies result from the smaller size of the high-frequency transformer.

Types of switch mode power supply (SMPS) transformers

SMPS transformers have many different applications. They can be used as broadband transformers, DC-to-DC converters, low-power DC-to-DC converters, pulse transformers and power sourcing equipment, among other uses.

189 Products showing for SMPS Transformers

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In Stock RS PRO 1 Output SMPS Transformer 12 W Output, 100 → 240 V RS Stock No. 774-8213 Subtotal (1 unit) Kr. 416,90(exc. VAT) Kr. 416,90/unit Quantity		SMPS Transformer	-	100 → 240 V	-	1	Encapsulated	-	-	12W	2.5A	-	50mm	-20°C	-	350mA	48mm	40mm	50°C	-	-	No	100g	-
Limited stock Myrra 2 Output SMPS Transformer 10 W Output, 85/265 V ac, 7 V, 8 → 17 V ac, 1.66 mH RS Stock No. 418-5515 Mfr. Part No. 74010 Subtotal (1 unit) Kr. 105,13(exc. VAT) Kr. 105,13/unit Quantity	Myrra	SMPS Transformer	7 V, 8 → 17 V ac	85/265 V ac	-	2	Through Hole	-	1.66mH	10W	2A	Pin	18mm	-	-	-	17.5mm	16mm	50°C	-	-	RoHS	-	-
In Stock Wurth Elektronik 1 Output SMPS Transformer 250 W Output, 360/400 V, 48 V, 400 μH RS Stock No. 823-5459 Mfr. Part No. 760895751 Subtotal (1 unit) Kr. 250,31(exc. VAT) Kr. 250,31/unit Quantity	Wurth Elektronik	SMPS Transformer	48 V	360/400 V	-	1	Through Hole	-	400μH	250W	4.3A	-	48mm	-40°C	16	-	46mm	27.5mm	125°C	-	WE-LLCR	No	121g	250V
In Stock Wurth Elektronik 1 Output Gate Drive Transformer, 9/18 V, 19 V, 18 μH RS Stock No. 227-8202P Mfr. Part No. 750317893 Subtotal 1 unit (supplied on a continuous strip) Kr. 97,70(exc. VAT) Kr. 97,70/unit Quantity	Wurth Elektronik	Gate Drive Transformer	19 V	9/18 V	-	1	Surface	-	18μH	-	160mA	-	11.3mm	-40°C	8	1.95A	10.95mm	11.9mm	130°C	-	WE-AGDT	REACH, RoHS	-	-
In Stock Wurth Elektronik 1 Output Switch Mode Power Supply Transformer 1.2 W Output, 24 V dc, 12 V dc, 4 mH RS Stock No. 245-8590P Mfr. Part No. 750317331 Subtotal 1 unit (supplied on a continuous strip) Kr. 33,18(exc. VAT) Kr. 33,18/unit Quantity	Wurth Elektronik	Switch Mode Power Supply Transformer	12 V dc	24 V dc	-	1	Surface	-	4mH	1.2W	800mA	-	10.2mm	-40°C	6	-	6.73mm	4.19mm	125°C	-	-	RoHS	-	-
Limited stock Myrra 5 Output SMPS Transformer 5 W Output, 265 V, 85 → 370 V ac, 3.3 V RS Stock No. 792-4366 Mfr. Part No. 47151 Subtotal (1 unit) Kr. 267,24(exc. VAT) Kr. 267,24/unit Quantity	Myrra	SMPS Transformer	3.3 V	265 V, 85 → 370 V ac	-	5	Through Hole	-	-	5W	1.35A	-	31.7mm	-25°C	4	200mA	26.7mm	21.8mm	50°C	-	-	RoHS, CE, VDE, ENEC, UL	30g	-
Limited stock Myrra 1 Output SMPS Transformer 5.4 W Output, 85 → 370 V dc, 85 → 265 V ac, 24 V RS Stock No. 792-4394 Mfr. Part No. 47134 Subtotal (1 unit) Kr. 229,03(exc. VAT) Kr. 229,03/unit Quantity	Myrra	SMPS Transformer	24 V	85 → 370 V dc, 85 → 265 V ac	-	1	-	-	-	5.4W	1.35A	-	-	-25°C	4	-	-	-	70°C	-	47000	EN 55014-2, EN 61000-4-x, UL 94-V0, UL components, EN 60950, EN 61558-2-17, EN 55022 Class B, EN 60335, EN 55014-1	-	4000V ac
Temporarily out of stock Myrra 3 Output SMPS Transformer 30 W Output, 85 → 265 V ac, 8 → 17 V ac, 3.3 → 7 V ac RS Stock No. 418-5543 Mfr. Part No. 74030 Subtotal (1 unit) Kr. 109,14(exc. VAT) Kr. 109,14/unit Quantity	Myrra	SMPS Transformer	8 → 17 V ac, 3.3 → 7 V ac	85 → 265 V ac	-	3	Through Hole	-	-	30W	-	Pin	26.5mm	-	-	1.5A	22.5mm	26.5mm	50°C	-	-	UL94-V0, IEC335, IEC950, IEC61558	-	4kV
In Stock Wurth Elektronik 1 Output Switch Mode Power Supply Transformer 1.2 W Output, 12 V dc, 12 V dc, 1.92 mH RS Stock No. 245-8594 Mfr. Part No. 750317829 Subtotal (1 unit) Kr. 28,26(exc. VAT) Kr. 28,26/unit Quantity	Wurth Elektronik	Switch Mode Power Supply Transformer	12 V dc	12 V dc	-	1	Surface	-	1.92mH	1.2W	800mA	-	10.2mm	-40°C	6	-	6.73mm	4.19mm	125°C	-	-	RoHS	-	-
Limited stock Myrra 5 Output SMPS Transformer 2.5 W Output, 85 → 370 V ac, 265 V, 12 V RS Stock No. 792-4350 Mfr. Part No. 47124 Subtotal (1 unit) Kr. 206,03(exc. VAT) Kr. 206,03/unit Quantity	Myrra	SMPS Transformer	12 V	85 → 370 V ac, 265 V	-	5	Through Hole	-	-	2.5W	210mA	-	31.7mm	-25°C	4	200mA	26.7mm	21.8mm	70°C	-	-	RoHS, UL, CE, VDE, ENEC	30g	-
In Stock Bourns 2 Output SMPS Transformer 6 W Output, 265 V ac, 12 V ac, 1.55 mH RS Stock No. 285-0561 Mfr. Part No. 063932 Subtotal (1 unit) Kr. 24,02(exc. VAT) Kr. 24,02/unit Quantity	Bourns	SMPS Transformer	12 V ac	265 V ac	-	2	Surface	-	1.55mH	6W	-	-	-	-25°C	-	-	-	-	125°C	-	063932	RoHS, EN 60335, EN 61558, EN 62368	-	-
In Stock Wurth Elektronik 3 Output Gate Drive Transformer 1.5 W Output, 12/18 V, 7.5 V, 42 μH RS Stock No. 288-372 Mfr. Part No. 750319077 Subtotal (1 tape of 1 unit) Kr. 47,13(exc. VAT) Kr. 47,13/tape Quantity	Wurth Elektronik	Gate Drive Transformer	7.5 V	12/18 V	-	3	Through Hole	-	42μH	1.5W	-	-	-	-40°C	-	-	-	-	130°C	-	WE-AGDT	RoHS 2011, 863 REACH or declared EC1907, 2006 Halogen Free JEDEC JS709B Halogen Free IEC 61249-2-21, EU&2015	-	-
Currently unavailable Wurth Elektronik 2 Output Gate Drive Transformer, 9/18 V, 18 V, 18 μH RS Stock No. 227-8203 Mfr. Part No. 750317894 Subtotal (1 reel of 250 units) Kr. 16 542,25(exc. VAT) Kr. 66,169/unit Quantity	Wurth Elektronik	Gate Drive Transformer	18 V	9/18 V	-	2	Surface	-	18μH	-	160mA	-	11.3mm	-40°C	8	1.95A	10.95mm	11.9mm	130°C	-	WE-AGDT	RoHS, REACH	-	-
In Stock Wurth Elektronik 2 Output Resonant Converter 400 W Output, 54 V dc, 11 V, 28 μH RS Stock No. 270-0883 Mfr. Part No. 7608957210 Subtotal (1 unit) Kr. 221,14(exc. VAT) Kr. 221,14/unit Quantity	Wurth Elektronik	Resonant Converter	11 V	54 V dc	-	2	Surface	-	28μH	400W	-	-	-	40°C	-	40A	-	-	125°C	-	-	RoHS	-	-
In Stock Wurth Elektronik 1 Output Switch Mode Power Supply Transformer 1.25 W Output, 12 V dc, 5 V dc, 1.92 mH RS Stock No. 245-8596 Mfr. Part No. 750317830 Subtotal (1 unit) Kr. 33,18(exc. VAT) Kr. 33,18/unit Quantity	Wurth Elektronik	Switch Mode Power Supply Transformer	5 V dc	12 V dc	-	1	Surface	-	1.92mH	1.25W	800mA	-	10.2mm	-40°C	6	-	6.73mm	4.19mm	125°C	-	-	RoHS	-	-
Limited stock Myrra 3 Output SMPS Transformer 5.4 W Output, 370 V dc, 265 V ac, 24 V dc RS Stock No. 792-4423 Mfr. Part No. 47247 Subtotal (1 unit) Kr. 295,38(exc. VAT) Kr. 295,38/unit Quantity	Myrra	SMPS Transformer	24 V dc	370 V dc, 265 V ac	-	3	-	-	-	5.4W	1.35A	-	-	-40°C	-	-	-	-	85°C	-	47000	EN 61000-4-x, UL 94-V0, UL components, EN 55014-2, EN 55022 Class B, EN 61558-2-17, EN 60335, EN 60950, EN 55014-1	-	4000V ac
Temporarily out of stock Myrra 5 Output SMPS Transformer 4.2 W Output, 85/265 V ac, 7.5 → 15 V ac, 2.1 mH RS Stock No. 418-4146 Mfr. Part No. 74095 Subtotal (1 unit) Kr. 101,02(exc. VAT) Kr. 101,02/unit Quantity	Myrra	SMPS Transformer	7.5 → 15 V ac	85/265 V ac	-	5	PCB	-	2.1mH	4.2W	900mA	-	18mm	-	-	-	16mm	17.5mm	60°C	-	-	RoHS	-	-
Temporarily out of stock Wurth Elektronik 1 Output SMPS Transformer 150 W Output, 360/400 V, 24 V, 600 μH RS Stock No. 823-5434 Mfr. Part No. 760895441 Subtotal (1 unit) Kr. 198,83(exc. VAT) Kr. 198,83/unit Quantity	Wurth Elektronik	SMPS Transformer	24 V	360/400 V	-	1	Through Hole	-	600μH	150W	2A	-	36mm	-40°C	12	-	36mm	26mm	125°C	-	WE-LLCR	No	57g	250V
In Stock Wurth Elektronik 1 Output Gate Drive Transformer 2.7 W Output, 7/31 V, 27 V, 10 μH RS Stock No. 288-366 Mfr. Part No. 750318616 Subtotal (1 tape of 1 unit) Kr. 56,17(exc. VAT) Kr. 56,17/tape Quantity	Wurth Elektronik	Gate Drive Transformer	27 V	7/31 V	-	1	Through Hole	-	10μH	2.7W	-	-	-	-40°C	-	-	-	-	130°C	-	WE-AGDT	REACH, RoHS	-	-
Temporarily out of stock Wurth Elektronik 1 Output SMPS Transformer 250 W Output, 360/400 V, 48 V, 400 μH RS Stock No. 163-5623 Mfr. Part No. 760895751 Subtotal (1 tray of 15 units) Kr. 3 280,305(exc. VAT) Kr. 218,687/unit Quantity	Wurth Elektronik	SMPS Transformer	48 V	360/400 V	-	1	Through Hole	-	400μH	250W	4.3A	-	48mm	-40°C	16	-	46mm	27.5mm	125°C	-	WE-LLCR	No	121g	250V

SMPS Transformers

How do switch mode power supply (SMPS) transformers work?

Types of switch mode power supply (SMPS) transformers

189 Products showing for SMPS Transformers

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