Power Transformers

Use the filters and product table below to compare Power Transformers components by manufacturer, availability, pricing reference and technical specifications. Review datasheets and key parameters to narrow the selection for your application.

If you already have a target part number, package, rating or quantity, send the requirement to Winsun (HK) Electronics for availability checks, BOM sourcing, shortage support and quotation assistance.

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Mfr. Part #	Availability	Price	Quantity	Datasheet	Series	Packaging	Product Status	Type	Voltage - Primary	Voltage - Secondary (Full Load)	Current - Output (Max)	Primary Winding(s)	Secondary Winding(s)	Center Tap	Power - Max	Mounting Type	Termination Style	Size / Dimension	Height - Seated (Max)	Voltage - Isolation	Weight
12-200-LPI PWR XFMR SEMI-TORO 2.5VA TH Signal Transformer	3,199	-	RFQ	Datasheet	LPI	Box	Active	Semi-Toroidal	115V, 230V	Parallel 6.3V, Series 12.6V	Parallel 400mA, Series 200mA	Dual	Dual	No	2.5VA	Through Hole	PC Pin	60.20mm L x 42.10mm W	18.30mm	4000Vrms	0.27 lb (122.47 g)
30-200-LPI PWR XFMR SEMI-TORO 6VA TH Signal Transformer	1,663	-	RFQ	Datasheet	LPI	Box	Active	Semi-Toroidal	115V, 230V	Parallel 15V, Series 30V	Parallel 400mA, Series 200mA	Dual	Dual	No	6VA	Through Hole	PC Pin	60.20mm L x 42.10mm W	22.70mm	4000Vrms	0.39 lb (176.9 g)
24-250-LPI PWR XFMR SEMI-TORO 6VA TH Signal Transformer	4,759	-	RFQ	Datasheet	LPI	Box	Active	Semi-Toroidal	115V, 230V	Parallel 12V, Series 24V	Parallel 500mA, Series 250mA	Dual	Dual	No	6VA	Through Hole	PC Pin	60.20mm L x 42.10mm W	22.70mm	4000Vrms	0.39 lb (176.9 g)
ST-7-120 PWR XFMR LAMINATED 36VA TH Signal Transformer	1,807	-	RFQ	Datasheet	ST	Bulk	Active	Laminated Core	115V	Parallel 60V, Series 120V	Parallel 600mA, Series 300mA	Single	Dual	No	36VA	Through Hole	PC Pin	66.70mm L x 55.50mm W	40.40mm	2500Vrms	1.1 lbs (499 g)
30-85-LPI PWR XFMR SEMI-TORO 2.5VA TH Signal Transformer	1,758	-	RFQ	Datasheet	LPI	Box	Active	Semi-Toroidal	115V, 230V	Parallel 15V, Series 30V	Parallel 170mA, Series 85mA	Dual	Dual	No	2.5VA	Through Hole	PC Pin	60.20mm L x 42.10mm W	18.30mm	4000Vrms	0.27 lb (122.47 g)
CL2-30-12 PWR XFMR LAMINATED 30VA TH Signal Transformer	2,371	-	RFQ	Datasheet	CL2	Bulk	Active	Laminated Core	115V, 230V	12V	2.5A	Dual	Single	No	30VA	Through Hole	PC Pin	66.70mm L x 55.50mm W	39.70mm	4000Vrms	1.2 lbs (544.3 g)
12-450-LPI PWR XFMR SEMI-TORO 6VA TH Signal Transformer	1,580	-	RFQ	Datasheet	LPI	Box	Active	Semi-Toroidal	115V, 230V	Parallel 6.3V, Series 12.6V	Parallel 900mA, Series 450mA	Dual	Dual	No	6VA	Through Hole	PC Pin	60.20mm L x 42.10mm W	22.70mm	4000Vrms	0.39 lb (176.9 g)
20-125-LPI PWR XFMR SEMI-TORO 2.5VA TH Signal Transformer	3,857	-	RFQ	Datasheet	LPI	Box	Active	Semi-Toroidal	115V, 230V	Parallel 10V, Series 20V	Parallel 250mA, Series 125mA	Dual	Dual	No	2.5VA	Through Hole	PC Pin	60.20mm L x 42.10mm W	18.30mm	4000Vrms	0.27 lb (122.47 g)
56-45-LPI PWR XFMR SEMI-TORO 2.5VA TH Signal Transformer	3,640	-	RFQ	Datasheet	LPI	Box	Active	Semi-Toroidal	115V, 230V	Parallel 28V, Series 56V	Parallel 90mA, Series 45mA	Dual	Dual	No	2.5VA	Through Hole	PC Pin	60.20mm L x 42.10mm W	18.30mm	4000Vrms	0.27 lb (122.47 g)
10-600-LPI PWR XFMR SEMI-TORO 6VA TH Signal Transformer	1,630	-	RFQ	Datasheet	LPI	Box	Active	Semi-Toroidal	115V, 230V	Parallel 5V, Series 10V	Parallel 1.2A, Series 600mA	Dual	Dual	No	6VA	Through Hole	PC Pin	60.20mm L x 42.10mm W	22.70mm	4000Vrms	0.39 lb (176.9 g)

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FREQUENTLY ASKED QUESTIONS

Power Transformers FAQ

Common questions about filtering, comparing and sourcing Power Transformers components.

How can I narrow the Power Transformers selection?

Use the available manufacturer and technical parameter filters to reduce the product list. Compare the remaining part numbers against your electrical, package and application requirements.

Should I confirm the datasheet before selecting a part?

Yes. Always review the manufacturer datasheet to confirm ratings, package, operating conditions and other technical details before finalizing a component for your design.

Can Winsun (HK) Electronics help source a specific Power Transformers part number?

Yes. Send the exact manufacturer part number and required quantity for availability, lead-time and quotation support.

Do you support BOM, shortage or alternative-part requirements?

Yes. You can submit a BOM or shortage list for sourcing assistance. Where appropriate, our team can also help review possible alternative-part options.