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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.

190 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) £28.42(exc. VAT) £28.42/unit Quantity		SMPS Transformer	-	100 → 240 V	1	Encapsulated	-	12W	2.5A	-	50mm	-20°C	-	350mA	48mm	40mm	50°C	-	No	100g	-
Last RS stock TRACOPOWER 2 Output Switching Power Supply 30 W Output RS Stock No. 132-154 Mfr. Part No. TMT 30215C Subtotal (1 unit) £103.75(exc. VAT) £103.75/unit Quantity	TRACOPOWER	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
Limited stock Myrra 1 Output SMPS Transformer 3.2 W Output, 120 → 370 V dc, 85 → 265 V ac, 12 V RS Stock No. 792-4394 Mfr. Part No. 47134 Subtotal (1 unit) £16.69(exc. VAT) £16.69/unit Quantity	Myrra	SMPS Transformer	12 V	120 → 370 V dc, 85 → 265 V ac	1	-	-	3.2W	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
In Stock Eliwell SMPS Transformer RS Stock No. 509-0979 Mfr. Part No. TCM 230V/12V 3VA Subtotal (1 unit) £18.50(exc. VAT) £18.50/unit Quantity	Eliwell	SMPS Transformer	-	-	-	Panel, DIN Rail	-	-	-	-	1.5m	-50°C	-	-	-	113mm	80°C	-	UL94 V-0	-	-
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) £20.66(exc. VAT) £20.66/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
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) £7.95(exc. VAT) £7.95/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 2 Output Gate Drive Transformer 6 W Output, 9/18 V, 4 → 19 V, 7 μH RS Stock No. 288-369 Mfr. Part No. 750319497 Subtotal (1 tape of 1 unit) £4.09(exc. VAT) £4.09/tape Quantity	Wurth Elektronik	Gate Drive Transformer	4 → 19 V	9/18 V	2	Through Hole	7μH	6W	-	-	-	-40°C	-	-	-	-	130°C	-	RoHS, REACH	-	-
Limited stock Myrra 1 Output SMPS Transformer 5 W Output, 370 V dc, 265 V ac, 12 V dc RS Stock No. 792-4372 Mfr. Part No. 47154 Subtotal (1 unit) £16.16(exc. VAT) £16.16/unit Quantity	Myrra	SMPS Transformer	12 V dc	370 V dc, 265 V ac	1	Through Hole	-	5W	1.35A	-	31.7mm	-25°C	-	-	26.7mm	21.8mm	70°C	47000	EN 55022 Class B, EN 60335, EN 61558-2-17, EN 55014-2, EN 61000-4-x, UL 94-V0, EN 60950, EN 55014-1	-	4000V ac
Currently unavailable MEAN WELL 4 Output Switching Power Supply 203 W Output RS Stock No. 414-064 Mfr. Part No. QP-200D Subtotal (1 unit) £103.44(exc. VAT) £103.44/unit Quantity	MEAN WELL	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
In Stock Wurth Elektronik 1 Output Gate Drive Transformer 3 W Output, 15 V, 256 μH RS Stock No. 288-375 Mfr. Part No. 750319565 Subtotal (1 tape of 1 unit) £4.09(exc. VAT) £4.09/tape Quantity	Wurth Elektronik	Gate Drive Transformer	-	15 V	1	Through Hole	256μH	3W	-	-	-	-40°C	-	-	-	-	130°C	-	RoHS, REACH, UL Class B 10°C system, Free, AECQ00 Grade 1	-	-
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) £1.75(exc. VAT) £1.75/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 Myrra 10 Output SMPS Transformer 110 W Output, 265 V ac, 2 → 18 V dc, 3900 μH RS Stock No. 418-5509 Mfr. Part No. 74003 Subtotal (1 unit) £5.39(exc. VAT) £5.39/unit Quantity	Myrra	SMPS Transformer	2 → 18 V dc	265 V ac	10	-	3900μH	110W	210mA, 2mA	-	-	-	-	-	-	-	50°C	EE16	CEI950, CEI335, CEI61558	-	3750V ac
Currently unavailable TDK-Lambda 1 Output Switching Power Supply RS Stock No. 377-0869 Mfr. Part No. CA1000/24 Subtotal (1 unit) £1,060.45(exc. VAT) £1,060.45/unit Quantity	TDK-Lambda	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-
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) £15.01(exc. VAT) £15.01/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 Myrra 3 Output SMPS Transformer 5.4 W Output, 85 → 265 V ac, 85 → 370 V dc, 24 V RS Stock No. 792-4414 Mfr. Part No. 47243 Subtotal (1 unit) £17.27(exc. VAT) £17.27/unit Quantity	Myrra	SMPS Transformer	24 V	85 → 265 V ac, 85 → 370 V dc	3	-	-	5.4W	110mA, 1.35mA	-	-	-40°C	-	-	-	-	85°C	47000	UL 94-V0, EN 60335, EN 61000-4-x, EN 55014-1, EN 61558-2-17, EN 55014-2, EN 60950, EN 55022 Class B	-	4000V ac
In Stock Wurth Elektronik 3 Output Gate Drive Transformer 1.5 W Output, 6/18 V, 20 V, 42 μH RS Stock No. 288-365 Mfr. Part No. 750319282 Subtotal (1 tape of 1 unit) £3.43(exc. VAT) £3.43/tape Quantity	Wurth Elektronik	Gate Drive Transformer	20 V	6/18 V	3	Through Hole	42μH	1.5W	-	-	-	-40°C	-	-	-	-	130°C	-	RoHS, REACH	-	-
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) £7.66(exc. VAT) £7.66/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	-	-
Temporarily out of stock Wurth Elektronik 1 Output SMPS Transformer 150 W Output, 360/400 V, 12 V, 600 μH RS Stock No. 823-5425 Mfr. Part No. 760895431 Subtotal (1 unit) £10.26(exc. VAT) £10.26/unit Quantity	Wurth Elektronik	SMPS Transformer	12 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 6 W Output, 13 V, 11.5 V, 50 μH RS Stock No. 288-374 Mfr. Part No. 750319331 Subtotal (1 tape of 1 unit) £4.09(exc. VAT) £4.09/tape Quantity	Wurth Elektronik	Gate Drive Transformer	11.5 V	13 V	1	Through Hole	50μH	6W	-	-	-	-40°C	-	-	-	-	130°C	-	AECQ00 Grade 1, Free, REACH, RoHS, UL Insulation System Class B	-	-
Currently unavailable TDK-Lambda 4 Output Switching Power Supply RS Stock No. 231-7776 Mfr. Part No. CA400 5A12/12E24D Subtotal (1 unit) £856.87(exc. VAT) £856.87/unit Quantity	TDK-Lambda	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-	-

SMPS Transformers

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

Types of switch mode power supply (SMPS) transformers

190 Products showing for SMPS Transformers

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