Pulse Transformers

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

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Mfr. Part #	Availability	Price	Quantity	Datasheet	Series	Packaging	Product Status	Transformer Type	Inductance	ET (Volt-Time)	Turns Ratio - Primary:Secondary	Mounting Type	Size / Dimension	Height - Seated (Max)	Operating Temperature	Grade	Qualification
SM43001EL LAN TRANSFORMER Bourns Inc.	1,627	-	RFQ	Datasheet	SM	Tape & Reel (TR)	Active	LAN 10G Base-T	120µH	-	-	Surface Mount	0.650" L x 0.406" W (16.50mm x 10.30mm)	0.161" (4.10mm)	0°C ~ 85°C	-	-
SM91527L BMS TRANSFORMER/CMC,6PIN,SGL,7.6 Bourns Inc.	3,601	-	RFQ	Datasheet	-	Tape & Reel (TR)	Active	-	-	-	-	-	-	-	-	-	-
PT61018AAPEL-S PULSE XFMR 1CT:1CT 350UH Bourns Inc.	2,428	-	RFQ	Datasheet	PT	Tape & Reel (TR)	Obsolete	LAN 10/100 Base-T	350µH	-	1CT:1CT	Surface Mount	0.504" L x 0.272" W (12.80mm x 6.90mm)	0.232" (5.90mm)	-40°C ~ 85°C	Automotive	AEC-Q200
PFBR45-SP13150S TRANSFORMER PLC 0.45W 1.15MH EP1 Bourns Inc.	1,640	-	RFQ	Datasheet	PFBR45	Tape & Reel (TR)	Active	General Purpose	1.15mH	-	2:1	Surface Mount	0.972" L x 0.571" W (24.70mm x 14.50mm)	0.500" (12.70mm)	-40°C ~ 125°C	-	-
HCTSM80910BAL-E1 XFRMR POWER 9:10 300UH SMD Bourns Inc.	1,956	-	RFQ	Datasheet	HCT	Tape & Reel (TR)	Discontinued at Digi-Key	-	300µH	11.0VµS	9:10	Surface Mount	0.598" L x 0.425" W (15.20mm x 10.80mm)	0.256" (6.50mm)	-40°C ~ 125°C	-	-
HCTSM80403AAL-E1 XFMR 3.3-5V/3.3-15V,350MA PK TR Bourns Inc.	3,182	-	RFQ	Datasheet	HCT	Tape & Reel (TR)	Discontinued at Digi-Key	Isolation and Data Interface (Encapsulated)	250µH	11.0VµS	4:3	Surface Mount	0.484" L x 0.425" W (12.30mm x 10.80mm)	0.256" (6.50mm)	-40°C ~ 125°C	-	-
HCTSM80305BAL-E1 XFMR 3.3-5V/3.3-15V,350MA PK TR Bourns Inc.	1,043	-	RFQ	Datasheet	HCT	Tape & Reel (TR)	Discontinued at Digi-Key	Isolation and Data Interface (Encapsulated)	300µH	11.0VµS	3:5	Surface Mount	0.484" L x 0.425" W (12.30mm x 10.80mm)	0.256" (6.50mm)	-40°C ~ 125°C	-	-
SM13100EL LAN 10/100 BASE T XFORMER 250VRM Bourns Inc.	2,669	-	RFQ	Datasheet	SM	Tape & Reel (TR)	Obsolete	LAN 10/100 Base-T	350µH	-	1CT:1CT	-	-	0.504" (12.80mm)	-40°C ~ 85°C	Automotive	AEC-Q200
PFBR45-ST13150S TRANSFORMER PLC 0.45W 1.0MH EP13 Bourns Inc.	3,400	-	RFQ	Datasheet	PFBR45	Tape & Reel (TR)	Active	General Purpose	1.0mH	-	2:1	Surface Mount	0.551" L x 0.547" W (14.00mm x 13.90mm)	0.531" (13.50mm)	-40°C ~ 125°C	-	-
HCTSM80304BAL-E1 XFRMR POWER 3:4 300UH SMD Bourns Inc.	1,437	-	RFQ	Datasheet	HCT	Tape & Reel (TR)	Discontinued at Digi-Key	-	300µH	11.0VµS	3:4	Surface Mount	0.598" L x 0.425" W (15.20mm x 10.80mm)	0.256" (6.50mm)	-40°C ~ 125°C	-	-

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FREQUENTLY ASKED QUESTIONS

Pulse Transformers FAQ

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

How can I narrow the Pulse 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 Pulse 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.