Pulse Transformers
Pulse Transformers are designed to transfer pulses (signals/voltage with a rapid rise time, a duration of constant signal/voltage, and then a rapid fall time) from one side of a circuit to another. The transformer types are ADSL, data/voice coupling, economical open type, gate drive, general purpose, HDBase-T, HDSL, interface, isolation and data interface, LAN, MIL-STD-1553, PoE, SCR and Triac Trigger, SHDSL, T1/E1, T3/E3, and VDSL.
Sourcing Bel Fuse, Inc. Pulse Transformers: in-stock lines for quick ship, BOM matching for multi-line builds, and original-channel screening — not keyword stuffing.
Product List
Total Components: 12
| Product | Pricing | Datasheet | Mounting Type | Operating Temperature | Size / Dimension | ET (Volt-Time) | Transformer Type | Turns Ratio - Primary:Secondary | Height - Seated (Max) | Inductance | Stock & Quantity |
|---|---|---|---|---|---|---|---|---|---|---|---|
 S558-5500-25-F Bel Fuse, Inc. | 1 $2.2700 | Surface Mount | 0°C ~ 70°C | 0.485" L x 0.285" W (12.32mm x 7.24mm) | - | LAN 10/100 Base-T, Power over Ethernet (PoE) | 1:1 Transmitter, 1:1 Receiver | 0.225" (5.72mm) | 350µH | 2,625 | |
 S558-5999-U7-F Bel Fuse, Inc. | 1 $3.8571 100 $3.0857 500 $2.5714 | Surface Mount | -40°C ~ 85°C | 0.485" L x 0.285" W (12.32mm x 7.24mm) | - | LAN 10/100 Base-T | 1CT:1CT Transmitter, 1CT:1CT Receiver | 0.225" (5.72mm) | 350µH | 3,000 | |
S558-5999-J1-F Bel Fuse, Inc. | 1 $2.7300 | Surface Mount | 0°C ~ 70°C | 0.485" L x 0.285" W (12.32mm x 7.24mm) | - | LAN 10/100 Base-T | 1CT:1CT Transmitter, 1CT:1CT Receiver | 0.225" (5.72mm) | 350µH | 6,417 | |
S558-5999-T7-F Bel Fuse, Inc. | 1 $1.0950 100 $0.8760 500 $0.7300 | Surface Mount | -40°C ~ 85°C | 0.485" L x 0.285" W (12.32mm x 7.24mm) | - | LAN 10/100 Base-T | 1CT:1CT Transmitter, 1CT:1CT Receiver | 0.225" (5.72mm) | 350µH | 200 | |
 S558-5999-M8-F Bel Fuse, Inc. | 1 $3.9500 | Surface Mount | 0°C ~ 70°C | 0.690" L x 0.480" W (17.53mm x 12.20mm) | - | LAN | 1CT:1CT Transmitter, 1CT:1CT Receiver | 0.230" (5.84mm) | 350µH | 2,241 | |
 S558-5500-68 Bel Fuse, Inc. | 1 $4.6900 | Surface Mount | -40°C ~ 85°C | 0.690" L x 0.480" W (17.53mm x 12.20mm) | - | LAN 10/100/1000 Base-T, Power over Ethernet (PoE) | 1:1 Transmitter, 1:1 Receiver | 0.230" (5.84mm) | 350µH | 5,650 | |
 S558-5999-AB-F Bel Fuse, Inc. | 1 $4.7000 | Surface Mount | -40°C ~ 85°C | 0.522" L x 0.600" W (13.26mm x 15.24mm) | - | LAN | 1CT:1CT Transmitter, 1CT:1CT Receiver | 0.250" (6.35mm) | 350µH | 1,585 | |
S558-5999-AT-F Bel Fuse, Inc. | 1 $5.8100 | Surface Mount | -40°C ~ 85°C | 0.690" L x 0.480" W (17.53mm x 12.20mm) | - | LAN | 1CT:1 Transmitter, 1CT:1CT Receiver | 0.230" (5.84mm) | 350µH | 6,281 | |
S558-5999-P3-F Bel Fuse, Inc. | 1 $6.3100 | Surface Mount | 0°C ~ 70°C | 0.690" L x 0.480" W (17.53mm x 12.20mm) | - | LAN | 1CT:1CT Transmitter, 1CT:1CT Receiver | 0.230" (5.84mm) | 350µH | 4,220 | |
S558-5999-AC-F Bel Fuse, Inc. | 1 $6.0600 | Surface Mount | -40°C ~ 85°C | 0.522" L x 0.600" W (13.26mm x 15.24mm) | - | LAN | 1CT:1CT Transmitter, 1CT:1CT Receiver | 0.250" (6.35mm) | - | 6,782 | |
 S558-5999-AZ-F Bel Fuse, Inc. | 1 $7.4500 | Surface Mount | 0°C ~ 70°C | 0.880" L x 0.540" W (22.35mm x 13.72mm) | - | - | 1CT:1CT Transmitter, 1CT:1CT Receiver | 0.084" (2.13mm) | 350µH | 4,046 | |
 S558-5999-Q2-F Bel Fuse, Inc. | 1 $7.4500 | Surface Mount | 0°C ~ 70°C | 1.095" L x 0.480" W (27.81mm x 12.19mm) | - | LAN | 1CT:1CT Transmitter, 1CT:1CT Receiver | 0.295" (7.49mm) | 350µH | 4,766 |