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Flyback Transformers for
Capacitor Charging

Peak primary
current
Capacitor
charge voltage
Pri-sec
turns ratio
Part number Designed for
1.2 A 350 V 1 : 15 CJ5143-AL ON NCP5080
2 A 500 V 1 : 3 HA4060-AL LinearLT3751
3 A 300 V 1 : 10 DA2032-AL LinearLT3750
5 A 500 V 1 : 3 HA4061-AL LinearLT3751
5 A 300 V 1 : 10 DA2033-AL LinearLT3750 / LT3751
10 A 300 V 1 : 10 DA2034-AL LinearLT3750 / LT3751
20 A 500 V 1 : 10 GA3459-BL LinearLT3751
50 A 500 V 1 : 10 GA3460-BL Linear LT3751
For the flyback transformer for the Linear LT3451Controller, see HA3994-AL.

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Updated: October 30, 2017