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| Image | Part # | Manufacturer | Description | Availability | Pricing | Quantity | Surface Mount | Mounting Feature | Approvals | Ihs Manufacturer | Operating Temperature-Max | Package Description | Part Life Cycle Code | Rohs Code | Pbfree Code | ECCN Code | Applications | Additional Feature | Packing Method | Number of Functions | Reach Compliance Code | Insertion Loss | Isolation Voltage | Transformer Type | Primary Inductance | Turns Ratio (NpNs) | Height | Length | Width |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
  | Mfr. Part #S558-5999-K8Twicea Part #106-959-S558-5999-K8 | Bel Fuse |
Description: Datacom Transformer, LAN; 10/100 BASE-T Application(s), 1CT:1CT
Datasheet
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| Min.:1 Mult.:1 | YES | SURFACE MOUNT | - | BEL FUSE INC | 70 °C | - | Active | No | No | EAR99 | LAN; 10/100 BASE-T | HEIGHT DIMENSION INCLUDES TERMINAL ALSO | - | 1 | unknown | - | 1500 V | DATACOM TRANSFORMER | - | 1CT:1CT | 5.73 mm | 12.7 mm | 7.24 mm | ||
| S558-5999-K8 | |||||||||||||||||||||||||||||
| | Mfr. Part #S553-5006-KFTwicea Part #106-959-S553-5006-KF | Bel Fuse |
Datacom Transformer, TOKEN RING Application(s), 1:1:2:2
Datasheet
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| Min.:1 Mult.:1 | YES | SURFACE MOUNT | - | BEL FUSE INC | 70 °C | - | Obsolete | No | No | EAR99 | TOKEN RING | - | - | 2 | unknown | - | 1000 V | DATACOM TRANSFORMER | 125 µH | 1:1:2:2 | 5.72 mm | 12.7 mm | 7.24 mm | ||
| S553-5006-KF | |||||||||||||||||||||||||||||
| | Mfr. Part #S553-2940-05Twicea Part #106-959-S553-2940-05 | Bel Fuse |
Datacom Transformer, 10 BASE-T Application(s), 1CT:1.414CT; 1:1
Datasheet
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| Min.:1 Mult.:1 | YES | SURFACE MOUNT | - | BEL FUSE INC | - | - | Active | - | - | EAR99 | 10 BASE-T | - | - | 4 | compliant | - | 2000 V | DATACOM TRANSFORMER | 100 µH | 1CT:1.414CT; 1:1 | 5.38 mm | 27.94 mm | 12.19 mm | ||
| S553-2940-05 | |||||||||||||||||||||||||||||
| | Mfr. Part #S553-2940-10Twicea Part #106-959-S553-2940-10 | Bel Fuse |
Description: Datacom Transformer, 10 BASE-T Application(s), 1CT:1.414CT; 1:1
Datasheet
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| Min.:1 Mult.:1 | YES | SURFACE MOUNT | - | BEL FUSE INC | - | - | Active | - | - | EAR99 | 10 BASE-T | - | - | 1 | compliant | - | 2000 V | DATACOM TRANSFORMER | - | 1CT:1.414CT; 1:1 | 5.38 mm | 27.94 mm | 12.19 mm | ||
| S553-2940-10 | |||||||||||||||||||||||||||||
| | Mfr. Part #S553-5999-77Twicea Part #106-959-S553-5999-77 | Bel Fuse |
Description: Datacom Transformer, 10 BASE-T Application(s), 1CT:1CT; 1:1
Datasheet
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| Min.:1 Mult.:1 | YES | SURFACE MOUNT | - | BEL FUSE INC | - | - | Active | - | - | EAR99 | 10 BASE-T | - | - | 4 | compliant | - | 2000 V | DATACOM TRANSFORMER | - | 1CT:1CT; 1:1 | 5.38 mm | 27.94 mm | 12.19 mm | ||
| S553-5999-77 | |||||||||||||||||||||||||||||
| | Mfr. Part #S558-5999-83Twicea Part #106-959-S558-5999-83 | Bel Fuse |
Datacom Transformer, LAN; 10/100 BASE-T Application(s), 1.23CT:1CT; 1CT:1CT
Datasheet
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| Min.:1 Mult.:1 | YES | SURFACE MOUNT | - | BEL FUSE INC | 70 °C | - | Active | - | - | EAR99 | LAN; 10/100 BASE-T | HEIGHT DIMENSION INCLUDES TERMINAL ALSO | - | 2 | compliant | - | 1500 V | DATACOM TRANSFORMER | 350 μH | 1.23CT:1CT; 1CT:1CT | 5.72 mm | 27.94 mm | 12.19 mm | ||
| S558-5999-83 | |||||||||||||||||||||||||||||
| | Mfr. Part #S553-2940-01Twicea Part #106-959-S553-2940-01 | Bel Fuse |
Description: Datacom Transformer, LAN; 10 BASE-T Application(s), 1CT:1.41CT; 1:1
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| Min.:1 Mult.:1 | YES | SURFACE MOUNT | - | BEL FUSE INC | 70 °C | - | Active | - | - | EAR99 | LAN; 10 BASE-T | COMMON MODE CHOKE AVAILABLE, HEIGHT DIMENSION INCLUDES TERMINAL ALSO | - | 4 | compliant | - | 1500 V | DATACOM TRANSFORMER | 100 μH | 1CT:1.41CT; 1:1 | 5.72 mm | 27.94 mm | 12.19 mm | ||
| S553-2940-01 | |||||||||||||||||||||||||||||
| | Mfr. Part #S553-1084-05Twicea Part #106-959-S553-1084-05 | Bel Fuse |
Datacom Transformer, 10 BASE-T Application(s), 2CT:1CT
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| Min.:1 Mult.:1 | YES | SURFACE MOUNT | - | BEL FUSE INC | - | - | Active | - | - | EAR99 | 10 BASE-T | HEIGHT DIMENSION INCLUDES TERMINAL ALSO | TAPE & REEL | 1 | compliant | - | 2000 V | DATACOM TRANSFORMER | 200 μH | 2CT:1CT | 5.46 mm | 7.62 mm | 7.24 mm | ||
| S553-1084-05 | |||||||||||||||||||||||||||||
| | Mfr. Part #S553-5006-JFTwicea Part #106-959-S553-5006-JF | Bel Fuse |
Datacom Transformer, TOKEN RING Application(s), 1:1:1:1
Datasheet
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| Min.:1 Mult.:1 | YES | SURFACE MOUNT | - | BEL FUSE INC | 70 °C | - | Obsolete | - | - | EAR99 | TOKEN RING | - | - | 2 | compliant | - | 2000 V | DATACOM TRANSFORMER | 125 µH | 1:1:1:1 | 5.72 mm | 12.7 mm | 7.24 mm | ||
| S553-5006-JF | |||||||||||||||||||||||||||||
| | Mfr. Part #S553-5841-16Twicea Part #106-959-S553-5841-16 | Bel Fuse |
Datacom Transformer, 10 BASE-T Application(s), 1CT:1.414CT; 1:1
Datasheet
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| Min.:1 Mult.:1 | YES | SURFACE MOUNT | - | BEL FUSE INC | - | - | Active | - | - | EAR99 | 10 BASE-T | - | - | 4 | compliant | - | 2000 V | DATACOM TRANSFORMER | 140 µH | 1CT:1.414CT; 1:1 | 5.38 mm | 27.94 mm | 12.19 mm | ||
| S553-5841-16 | |||||||||||||||||||||||||||||
| | Mfr. Part #S553-5841-17Twicea Part #106-959-S553-5841-17 | Bel Fuse |
Datacom Transformer, 10 BASE-T Application(s), 1CT:1.414CT; 1:1
Datasheet
Compare
| Min.:1 Mult.:1 | YES | SURFACE MOUNT | - | BEL FUSE INC | - | - | Active | - | - | EAR99 | 10 BASE-T | - | - | 4 | compliant | - | 2000 V | DATACOM TRANSFORMER | 140 µH | 1CT:1.414CT; 1:1 | 5.38 mm | 27.94 mm | 12.19 mm | ||
| S553-5841-17 | |||||||||||||||||||||||||||||
| | Mfr. Part #S558-5999-A8Twicea Part #106-959-S558-5999-A8 | Bel Fuse |
Datacom Transformer, LAN; 10/100 BASE-T Application(s), 1CT:1CT; 1CT:1CT
Datasheet
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| Min.:1 Mult.:1 | YES | SURFACE MOUNT | - | BEL FUSE INC | 70 °C | - | Active | No | No | EAR99 | LAN; 10/100 BASE-T | HEIGHT DIMENSION INCLUDES TERMINAL ALSO | TAPE & REEL | 2 | unknown | - | 1500 V | DATACOM TRANSFORMER | 350 µH | 1CT:1CT; 1CT:1CT | 5.72 mm | 27.94 mm | 12.19 mm | ||
| S558-5999-A8 | |||||||||||||||||||||||||||||
| | Mfr. Part #S553-5841-28Twicea Part #106-959-S553-5841-28 | Bel Fuse |
Datacom Transformer, 10 BASE-T Application(s), 1CT:1.414CT; 1:1
Datasheet
Compare
| Min.:1 Mult.:1 | YES | SURFACE MOUNT | - | BEL FUSE INC | - | - | Active | - | - | EAR99 | 10 BASE-T | - | - | 4 | compliant | - | 2000 V | DATACOM TRANSFORMER | 140 µH | 1CT:1.414CT; 1:1 | 5.38 mm | 27.94 mm | 12.19 mm | ||
| S553-5841-28 | |||||||||||||||||||||||||||||
| | Mfr. Part #S553-5999-49Twicea Part #106-959-S553-5999-49 | Bel Fuse |
Datacom Transformer, 100 BASE-T4; LAN Application(s), 1:2CT
Datasheet
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| Min.:1 Mult.:1 | YES | SURFACE MOUNT | - | BEL FUSE INC | - | - | Obsolete | - | - | EAR99 | 100 BASE-T4; LAN | COMPATIBLE WITH SEEQ 80C240; CYPRESS CY7C971 | TAPE & REEL | 4 | compliant | - | 2000 V | DATACOM TRANSFORMER | - | 1:2CT | - | - | - | ||
| S553-5999-49 | |||||||||||||||||||||||||||||
| | Mfr. Part #S558-5999-E5Twicea Part #106-959-S558-5999-E5 | Bel Fuse |
Datacom Transformer, LAN; 10/100 BASE-T Application(s), 1CT:1CT; 1:1
Datasheet
Compare
| Min.:1 Mult.:1 | YES | SURFACE MOUNT | IEEE | BEL FUSE INC | 70 °C | - | Active | - | - | EAR99 | LAN; 10/100 BASE-T | - | - | 4 | compliant | 1 dB | 1500 V | DATACOM TRANSFORMER | 350 μH | 1CT:1CT; 1:1 | 5.72 mm | 27.94 mm | 12.19 mm | ||
| S558-5999-E5 | |||||||||||||||||||||||||||||
| | Mfr. Part #S558-5999-32Twicea Part #106-959-S558-5999-32 | Bel Fuse |
Description: Datacom Transformer, LAN; 10/100 BASE-T Application(s), 1CT:1CT; 1CT:1CT
Datasheet
Compare
| Min.:1 Mult.:1 | YES | SURFACE MOUNT | IEEE | BEL FUSE INC | 70 °C | - | Obsolete | - | - | EAR99 | LAN; 10/100 BASE-T | HEIGHT DIMENSION INCLUDES TERMINAL ALSO | TAPE & REEL | 1 | compliant | 2 dB | 1500 V | DATACOM TRANSFORMER | 350 µH | 1CT:1CT; 1CT:1CT | 2.49 mm | 20.19 mm | 14.48 mm | ||
| S558-5999-32 | |||||||||||||||||||||||||||||
| | Mfr. Part #A553-5999-00Twicea Part #106-959-A553-5999-00 | Bel Fuse |
Datacom Transformer, 10 BASE-T Application(s), 1:1
Datasheet
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| Min.:1 Mult.:1 | NO | THROUGH HOLE MOUNTED | - | BEL FUSE INC | - | - | Active | - | - | EAR99 | 10 BASE-T | - | - | 4 | compliant | - | 2000 V | DATACOM TRANSFORMER | 150 µH | 1:1 | 5.84 mm | 20.32 mm | 7.24 mm | ||
| A553-5999-00 | |||||||||||||||||||||||||||||
| | Mfr. Part #S553-5999-78Twicea Part #106-959-S553-5999-78 | Bel Fuse |
Datacom Transformer, 10 BASE-T Application(s)
Datasheet
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| Min.:1 Mult.:1 | YES | SURFACE MOUNT | - | BEL FUSE INC | - | - | Active | - | - | EAR99 | 10 BASE-T | COMMON MODE CHOKE AVAILABLE; DESIGNED FOR USE WITH NATIONAL SEMICONDUCTORS DP83959 | TAPE & REEL | 4 | compliant | - | 2000 V | DATACOM TRANSFORMER | - | - | 5.3848 mm | 27.94 mm | 12.192 mm | ||
| S553-5999-78 | |||||||||||||||||||||||||||||
| | Mfr. Part #0558-5999-14Twicea Part #106-959-0558-5999-14 | Bel Fuse |
Description: Datacom Transformer, ATM; 100 BASE-TX; LAN Application(s)
Datasheet
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| Min.:1 Mult.:1 | NO | THROUGH HOLE MOUNTED | - | BEL FUSE INC | - | - | Active | - | - | EAR99 | ATM; 100 BASE-TX; LAN | COMMON MODE CHOKES AVAILABLE | - | 1 | compliant | - | 2000 V | DATACOM TRANSFORMER | 350 µH | - | - | - | - | ||
| 0558-5999-14 | |||||||||||||||||||||||||||||
| | Mfr. Part #S556-9003-54Twicea Part #106-959-S556-9003-54 | Bel Fuse |
Datacom Transformer, 10 BASE-T Application(s), 1:1; 1:1, CHIP
Datasheet
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| Min.:1 Mult.:1 | YES | SURFACE MOUNT | - | BEL FUSE INC | 70 °C | CHIP | Active | No | No | EAR99 | 10 BASE-T | - | TAPE & REEL | 1 | unknown | - | 1500 V | DATACOM TRANSFORMER | - | 1:1; 1:1 | 2.24 mm | 20.07 mm | 14.22 mm | ||
| S556-9003-54 |
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