Flyback Transformers (Telecom extended input, 14 – 72 Vdc)

Input range:  Telecom (36 – 72 Vdc)  |  Telecom (36 – 57 Vdc)  |  2.7 – 36 Vdc  |  AC line

If no transformer meets your design criteria, consult the Coilcraft Structured Design Guide for Switching Transformers for a step-by-step guide to transformer design, or contact Coilcraft for assistance.
Telecom extended input (14 – 60 Vdc)
11.6 3.3 V, 2 A
5 V, 1 A		 35 1 : 0.167
1 : 0.28		 1000 DA2257-AL NSC LM5071
Telecom extended input (16 – 32 Vdc)
5.0 5 V, 1 A 160 1 : 0.25 250 FA2636-AL NSC LM5001
Telecom extended input (18 – 57 Vdc)
25 3.3 V, 7.5 A  50 1 : 0.12 250 FA2677-AL NSC LM5072
25 5 V, 5 A  50 1 : 0.18 250 FA2898-AL NSC LM5072
25 9 V, 2.8 A  50 1 : 0.35 250 FA2899-AL NSC LM5072
25 12 V, 2.1 A  50 1 : 0.47 250 FA2900-AL NSC LM5072
25 15 V, 1.7 A  50 1 : 0.59 250 FA2901-AL NSC LM5072
30 15 V, 2 A 10 1 : 0.667 100 A9967-AL Linear LT1725 
Telecom extended input (18 – 72 Vdc)
3.2 3.3 V, .05 A
2.5 V, 0.6 A		 255 1 : 0.10
1 : 0.075		 275 C1154-BL Maxim MAX5941A
8.3 3.3 V, 2.5 A 133 1 : 0.13 275 C1099-AL Maxim MAX5941A 
9.9 3.3 V, 3 A  166.5 1 : 0.15 500 C1173-AL TI TSP23750
10 5 V, 2 A 150 1 : 0.20 500 C1174-AL TI TSP23750
Telecom extended input (24 – 60 Vdc)
20 3.3 V, 4 A  127 1 : 0.16 250 DA2383-AL NSC LM5071