78253J MAX253-Compatible Converter Transformers

Murata Power Solutions 78253J Converter Transformers are specifically designed for use with the Maxim MAX253 chipset to provide isolated power supplies. These transformers feature J-STD-020D reflow, toroidal construction, and isolation to 4kVDC. The 78253J transformers are available in 3.3V and 5V versions. Murata Power Solutions has provided a center-tapped secondary winding, which allows for full-bridge, half-bridge, or voltage doubling.

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Series
Murata Power Solutions Power Transformers - Board Mount TFMR 1:2.14, 142 UH 3.3V 100MA
Datasheet
1,171May Stock
Available ang MouseReel
Min.: 1
Mult.: 1
: 500

3.3 V 5 V 500 mW 100 mA SMD/SMT Single Primary Winding Single Secondary Winding 9.52 mm 9 mm 6.35 mm 78253
Murata Power Solutions Power Transformers - Board Mount 1:2.14 TRN 110/550 UH
Datasheet
513May Stock
Min.: 1
Mult.: 1

3.3 V 5 V 500 mW 100 mA Through Hole Single Primary Winding Single Secondary Winding 9.52 mm 9 mm 6.35 mm 78253
Murata Power Solutions Power Transformers - Board Mount SM TRANSFORMER
Datasheet
5May Stock
100Inaasahan 11/6/2026
Min.: 1
Mult.: 1

5 V 5 V 1 W 200 mA SMD/SMT Single Primary Winding Single Secondary Winding 9.52 mm 9 mm 6.35 mm 78253
Murata Power Solutions Power Transformers - Board Mount Max 253 TX 3.3v input 5v out DIP
Datasheet
50May Stock
Min.: 1
Mult.: 1

3.3 V 5 V 500 mW 100 mA Through Hole Single Primary Winding Single Secondary Winding 9.52 mm 9 mm 6.35 mm 78253
Murata Power Solutions Power Transformers - Board Mount DIP TRANS 4KVDC 5V/5V IN/OUT
Datasheet
159May Stock
200Inaasahan 6/8/2026
Min.: 1
Mult.: 1

5 V 5 V 1 W 200 mA Through Hole Single Primary Winding Single Secondary Winding 9.52 mm 9 mm 6.35 mm 78253
Murata Power Solutions Power Transformers - Board Mount PLEASE SEE MURATA'S SUGGESTED ALTERNATE 78253/55JC
Datasheet
158May Stock
950Inaasahan 6/15/2026
Min.: 1
Mult.: 1

3.3 V 5 V 500 mW 200 mA SMD/SMT Single Primary Winding Single Secondary Winding 9.52 mm 9 mm 6.35 mm 78253
Murata Power Solutions Power Transformers - Board Mount PLEASE SEE MURATA'S SUGGESTED ALTERNATE 78253/55JVC
Datasheet
34May Stock
450Inoorder
Min.: 1
Mult.: 1

5 V 5 V 1 W 200 mA SMD/SMT Single Primary Winding Single Secondary Winding 9.52 mm 9 mm 6.35 mm 78253
Murata Power Solutions Power Transformers - Board Mount TRANSFORMER 360UH MAX253 SMD
Datasheet
984Inoorder
Available ang MouseReel
Min.: 1
Mult.: 1
: 500

3.3 V 5 V 500 mW 100 mA SMD/SMT Single Primary Winding Single Secondary Winding 9.52 mm 9 mm 6.35 mm 78253
Murata Power Solutions Power Transformers - Board Mount 1:2.14 TRN 110/550 UH
Datasheet
550Inaasahan 8/17/2026
Min.: 1
Mult.: 1

3.3 V 5 V 500 mW 100 mA SMD/SMT Single Primary Winding Single Secondary Winding 9.52 mm 9 mm 6.35 mm 78253
Murata Power Solutions Power Transformers - Board Mount 5VIN 5VOUT 200MA 1500VDC 6PIN
Datasheet
950Inoorder
Available ang MouseReel
Min.: 1
Mult.: 1
: 500

5 V 5 V 1 W 200 mA SMD/SMT Single Primary Winding Single Secondary Winding 9.52 mm 9 mm 6.35 mm 78253
Murata Power Solutions Power Transformers - Board Mount TFMR 1:1.33, 4KV SM MAX253 MAX
Datasheet
1,600Inaasahan 6/22/2026
Min.: 1
Mult.: 1

5 V 5 V 1 W 200 mA SMD/SMT Single Primary Winding Single Secondary Winding 9.52 mm 9 mm 6.35 mm 78253
Murata Power Solutions Power Transformers - Board Mount 5VIN 5VOUT 200MA 4000VDC 6PIN
Datasheet
500Inaasahan 5/15/2026
Available ang MouseReel
Min.: 1
Mult.: 1
: 500

5 V 5 V 1 W 200 mA SMD/SMT Single Primary Winding Single Secondary Winding 9.52 mm 9 mm 6.35 mm 78253
Murata Power Solutions Power Transformers - Board Mount DIP TRANS 4KVDC 5V/5V IN/OUT
Datasheet
800Inaasahan 6/8/2026
Min.: 1
Mult.: 1

5 V 5 V 500 mW 200 mA Through Hole Single Primary Winding Single Secondary Winding 9.52 mm 9 mm 6.35 mm 78253
Murata Power Solutions Power Transformers - Board Mount TFMR 1:2.27 SM MAX253 MAXIM
Datasheet
311Inaasahan 10/5/2026
Min.: 1
Mult.: 1

3.3 V 5 V 500 mW 100 mA SMD/SMT Single Primary Winding Single Secondary Winding 9.52 mm 9 mm 6.35 mm 78253
Murata Power Solutions Power Transformers - Board Mount PLEASE SEE MURATA'S SUGGESTED ALTERNATE 78253/55JVC-R
Datasheet
Lead-Time 10 (na) Linggo
Available ang MouseReel
Min.: 1
Mult.: 1
: 500

3.3 V 5 V 500 mW 200 mA SMD/SMT Single Primary Winding Single Secondary Winding 9.52 mm 9 mm 6.35 mm 78253