30 W Flyback Transformers
for PoE Plus Applications

• Designed for flyback applications up to 30 Watts
• Developed to meet objectives of IEEE 802.3at
• Operates with 36 – 72 V input at a 250 kHz switching frequency
• Isolation: 1500 Vrms primary to secondary; 500 Vrms primary to auxiliary
• RoHS-compliant. 260°C compatible. Tin-silver over tin over nickel over phos bronze terminations
• Samples of all values are available in Coilcraft Designer's Kit C398

Photo    Pricing    Materials declaration    PDF data sheet 

SPECIFICATIONS

Dimensions    Schematic     Tape and reel specifications

POE300F-33L_	42.0	37.8	0.070	0.0023	0.220	3.00	1 : 0.09	1 : 0.33	2.6	3.3 V, 9 A
POE300F-50L_	42.0	37.8	0.069	0.0050	0.225	1.60	1 : 0.14	1 : 0.33	2.6	5 V, 6 A
POE300F-12L_	42.0	37.8	0.061	0.015	0.195	0.545	1 : 0.33	1 : 0.33	2.6	12 V, 2.5 A
POE300F-19L_	42.0	37.8	0.060	0.037	0.195	0.430	1 : 0.56	1 : 0.33	2.6	19.5 V, 1.5 A
POE300F-24L_	42.0	37.8	0.060	0.055	0.195	0.310	1 : 0.67	1 : 0.33	2.6	24 V, 1.25 A

1	When ordering, please specify packaging code: e.g. POE300F-24LD
	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 is for the primary, measured at 250 kHz, 0.7 Vrms, 0 Adc
3	Ipk is the peak primary current drawn at minimum input voltage.
4	DCR is with the windings connected in parallel.
5	Leakage inductance is for the primary with the secondary windings shorted.
6	Turns ratio is with the primary and the secondary windings connected in parallel.
7	Output is with the secondary windings connected in parallel. Output of the auxiliary winding is 12 V.
8	Ambient temperature range:	–40°C to +125°C
9	Storage temperature range:	Component: –40°C to +125°C Packaging: –55°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.