Forward Mode
Transformers
for 25 Watt PoE Applications
- Designed for forward topology operating at 250 kHz; Input voltage range: 33 – 57 V
- Three versions for 3.3, 5.0 and 12 Volt output
- 1500 Vrms isolation from primary and bias to secondary
- Bias winding output: 12 V, 20 mA
- RoHS-compliant. 260°C compatible. Tin-silver over tin over nickel over phos bronze terminations
Photo 
Pricing 
Materials declaration 
PDF data sheet
SPECIFICATIONS
Dimensions 
Schematic 
Tape and reel specifications
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| FCT1-33M22SL_ | 95 | 115 | 8.0 | 347 | 1.44 | 1 : 0.16 | 1 : 0.63 | 3.3 V, 7.2 A |
| FCT1-50M22SL_ | 95 | 144 | 18.0 | 298 | 0.880 | 1 : 0.25 | 1 : 0.53 | 5.0 V, 4.8 A |
| FCT1-120M22SL_ | 95 | 150 | 62.5 | 352 | 0.725 | 1 : 0.53 | 1 : 0.53 | 12 V, 2.0 A |
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| 1 | When ordering, please specify packaging code: e.g. FCT1-120M22SLD | |
| Packaging: | D = 13"
machine-ready reel EIA 481 embossed plastic tape (175 parts per full reel). B = Less than full reel In tape, but not machine-ready. To have a leader and trailer added ($25 charge), use code letter D instead. |
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| 2 | Inductance measured at 250 kHz, 0.1 Vrms, 0 Adc. | |
| 3 | DCR for the secondary is measured with the windings connected in parallel. | |
| 4 | Leakage inductance is for the primary winding and is measured with the secondary windings shorted. | |
| 5 | Turns ratio for secondary is with the windings connected in parallel. | |
| 6 | Output of the secondary is with the windings connected in parallel. Bias winding output is 12 V, 20 mA. | |
| 7 | Ambient temperature range: | –40°C to +85°C |
| 8 | Storage temperature range: | Component: –40°C to +85°C Packaging: –40°C to +80°C |
| 9 | Resistance to soldering heat: Three reflows at >217°C for 90 seconds (+260°C ±5°C for 20 – 40 seconds), allowing parts to cool to room temperature between. | |
| 10 | Electrical specifications at 25°C. | |
| Refer to Soldering Coilcraft Components before soldering. | ||
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