Forward Mode Transformers
for 30 Watt Telecommunications

• Designed for applications up to 30 Watts in forward converter topologies.
• Developed to meet IEEE 802.3at-2009 standard.
• 36 – 72 V input
• 250 kHz switching frequency
• 1500 Vrms winding to winding isolation
• 12 V aux winding output; 5 V sync winding output
• RoHS-compliant. 260°C compatible. Tin-silver over tin over nickel over phos bronze terminations

Photo    Pricing    Materials declaration    PDF data sheet 

SPECIFICATIONS

Schematic & recommended output inductors     Dimensions   

Tape and reel specifications    3D models

FCT1-33D3SL_	72.9	27.5	5.0	250	160	0.425	1 : 0.33	1 : 1	1 : 0.56	3.3 V, 9 A
FCT1-50D3SL_	72.9	27.5	10.0	250	160	0.420	1 : 0.44	1 : 1	1 : 0.56	5 V, 6 A
FCT1-120D3SL_	72.9	27.5	28.5	250	160	0.175	1 : 1	1 : 1	1 : 0.56	12 V, 2.5 A
FCT1-195D3SL_	72.9	27.5	32.0	235	120	0.235	1 : 1.44	1 : 0.88	1 : 0.44	19.5 V, 1.5 A
FCT1-240D3SL_	72.9	27.5	72.5	235	120	0.235	1 : 1.78	1 : 0.88	1 : 0.44	24 V, 1.25 A

1	When ordering, please specify packaging code: e.g. FCT1-240SLD
	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.

2	Inductance tested at 250 kHz, 0.2 Vrms, 0 Adc
3	DCR is with the windings connected in parallel.
4	Leakage inductance is for the primary with the secondary windings shorted.
5	Turns ratio is with the primary windings and the secondary windings connected in parallel.
6	Ambient temperature range:	–40°C to +125°C
7	Storage temperature range:	Component: –40°C to +125°C T&R packaging: –40°C to +80°C
8	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.
9	Electrical specifications at 25°C.
Refer to Soldering Coilcraft Components before soldering.