SMT Flyback Transformer
for
Power over Ethernet
- Developed for Maxim MAX5941B PoE Interface/PWM Controller
- Designed for 13 W PoE applications
- 30 – 60 V input; 12 V, 1.0 A output
- 1500 Vrms primary to secondary isolation
- 15 V, 20 mA bias winding output
- RoHS-compliant. 260°C compatible. Tin-silver (96.5/3.5) over tin over nickel over phos bronze terminations
Photo 
Pricing 
Materials declaration 
PDF data sheet
SPECIFICATIONS
Dimensions 
Schematic 
Tape and reel specifications
3D model
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| GA3271-AL_ | 117.5 | 104.0 | 0.201 (pri) 0.06 (sec) 0.335 (bias) |
0.815 | 1 : 0.457 | 1 : 0.571 | 1.0 | 12 V, 1.0 A |
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| 1 | When ordering, please specify packaging code: e.g. GA3271-ALD | |
| Packaging: | D = 13"
machine-ready reel EIA 481 embossed plastic tape (200 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 is for the primary, measured at 250 kHz, 1.0 Vrms. | |
| 3 | Ipk: Peak primary current drawn at minimum input voltage. | |
| 4 | DCR for the primary and secondary are measured with the windings connected in parallel. | |
| 5 | Leakage inductance is for the primary winding with the secondary windings shorted. | |
| 6 | Turns ratios are for the primary and the secondary windings connected in parallel. | |
| 7 | Output of the secondary is with the windings connected in parallel. Bias winding output is 15 V, 20 mA. | |
| 8 | Ambient temperature range: | –40°C to +125°C |
| 9 | Storage temperature range: | Component: –40°C to +125°C T&R packaging: –40°C to +80°C |
| 10 | 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. | |
| 11 | Electrical specifications at 25°C. | |
| Refer to Soldering Coilcraft Components before soldering. | ||