Pulse Transformers

Compare the current Pulse Transformers Transformers selection by manufacturer, stock status, datasheet and technical parameters. Use these details to narrow the list to parts that match your design, maintenance or purchasing requirements.

For a specific MPN, package, electrical rating or quantity requirement, send the details to EGOO. We can help confirm availability, quotation and alternative sourcing options.

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
S558-5500-77 TRANSFORMER PULSE Bel Fuse Inc.	2,517	-	RFQ	Datasheet	-	Tape & Reel (TR)	Active	LAN 1000 Base-T	120µH, 350µH	-	1CT:1CT Transmitter, 1CT:1CT Receiver	Surface Mount	1.095" L x 0.480" W (27.81mm x 12.19mm)	0.285" (7.24mm)	-	-	-
S558-5999-DL MODULE TRANSFORMER Bel Fuse Inc.	1,575	-	RFQ	Datasheet	-	Tape & Reel (TR)	Obsolete	LAN 1000 Base-T	350µH	-	1CT:1CT Transmitter, 1CT:1CT Receiver	Surface Mount	1.095" L x 0.480" W (27.81mm x 12.19mm)	0.285" (7.24mm)	-	-	-
S558-5500-56 TRANSFORMER PULSE Bel Fuse Inc.	4,644	-	RFQ	Datasheet	-	Tape & Reel (TR)	Active	LAN 1000 Base-T	350µH	-	1CT:1CT Transmitter, 1CT:1CT Receiver	Surface Mount	1.095" L x 0.480" W (27.81mm x 12.19mm)	0.285" (7.24mm)	-	-	-
S558-5999-Z3-F PULSE XFMR 1CT:1CT TX 1:1 RX Bel Fuse Inc.	2,587	-	RFQ	Datasheet	-	Bulk	Active	LAN 10/100 Base-T	350µH	-	1CT:1CT Transmitter, 1:1 Receiver	Surface Mount	1.100" L x 0.480" W (27.94mm x 12.19mm)	0.212" (5.38mm)	-40°C ~ 85°C	-	-
S558-5999-CJ MODULE TRANSFORMER Bel Fuse Inc.	1,473	-	RFQ	Datasheet	-	Tape & Reel (TR)	Active	LAN 1000 Base-T	350µH	-	1CT:1CT Transmitter, 1CT:1CT Receiver	Surface Mount	-	0.340" (8.64mm)	-	-	-
S558-10GB-15 TRANSFORMER PULSE Bel Fuse Inc.	4,383	-	RFQ	Datasheet	-	Tube	Active	LAN 10G Base-T	120µH	-	1CT:1CT Transmitter, 1CT:1CT Receiver	Surface Mount	-	0.290" (7.37mm)	-	-	-
S558-5999-AF-F MODULE XFRMR LAN 10/100B-TX SMD Bel Fuse Inc.	2,872	-	RFQ	Datasheet	-	Tape & Reel (TR)	Active	LAN 10/100 Base-T	350µH	-	1CT:1CT Transmitter, 1CT:1CT Receiver	Surface Mount	1.100" L x 0.476" W (27.94mm x 12.09mm)	0.236" (5.99mm)	-40°C ~ 85°C	-	-
S558-10GB-02 TRANSFORMER PULSE Bel Fuse Inc.	2,809	-	RFQ	Datasheet	-	Tape & Reel (TR)	Obsolete	LAN 10G Base-T	62µH	-	1CT:1CT Transmitter, 1CT:1CT Receiver	Surface Mount	-	0.290" (7.37mm)	-	-	-
S558-10GB-10 TRANSFORMER PULSE Bel Fuse Inc.	3,245	-	RFQ	Datasheet	-	Tape & Reel (TR)	Active	LAN 10G Base-T	80µH	-	1CT:1CT Transmitter, 1CT:1CT Receiver	Surface Mount	-	0.290" (7.37mm)	-	-	-
S553-6500-A8-F MODUL XFRMR LAN T1/E1 OCTAL SURG Bel Fuse Inc.	1,046	-	RFQ	Datasheet	-	Tape & Reel (TR)	Obsolete	T1/E1 (Octal)	950µH	-	1:2.42 Transmitter, 1:2.42 Receiver	Surface Mount	1.100" L x 0.480" W (27.94mm x 12.19mm)	0.295" (7.49mm)	-40°C ~ 85°C	-	-

Pulse Transformers FAQ

How can I narrow the current Pulse Transformers selection?

Use the available manufacturer and technical filters to compare matching parts by specifications, stock status, pricing and datasheet information.

Can EGOO help source hard-to-find or obsolete Pulse Transformers parts?

Yes. Send the manufacturer part number and required quantity to our sourcing team for availability, lead-time and alternative sourcing support.

Can I request a quotation for a BOM or small-batch requirement?

Yes. EGOO supports BOM sourcing, prototype quantities and small-batch purchasing. Provide your part list and quantities for a quotation review.

What information should I provide when requesting a quote?

Please provide the target part number, manufacturer, quantity and any required date code, package or delivery requirements so our team can respond more accurately.