Power Transformers - Board Mount

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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 4kV_DC. 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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Part #

Power Transformers - Board Mount PLEASE SEE MURATA'S SUGGESTED ALTERNATE 78253/55JVC

78253/55MVC
Murata Power Solutions
1: S/19.03
407In Stock
NRND

Mfr. Part #
78253/55MVC

Mouser Part #
580-7825355MVC

NRND

Murata Power Solutions

Power Transformers - Board Mount PLEASE SEE MURATA'S SUGGESTED ALTERNATE 78253/55JVC

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Datasheet

407In Stock

S/19.03

S/16.08

S/15.49

S/14.44

View

Min.: 1
Mult.: 1

5 V

1 W

200 mA

SMD/SMT

Single Primary Winding

Single Secondary Winding

9.52 mm

9 mm

6.35 mm

78253

Power Transformers - Board Mount TFMR 1:1.33, 4KV SM MAX253 MAX

78253/55JVC
Murata Power Solutions
1: S/17.91
737In Stock

Mfr. Part #
78253/55JVC

Mouser Part #
580-78253/55JVC

Murata Power Solutions

Power Transformers - Board Mount TFMR 1:1.33, 4KV SM MAX253 MAX

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Datasheet

737In Stock

S/17.91

S/16.31

S/15.65

S/15.14

View

Min.: 1
Mult.: 1

5 V

1 W

200 mA

SMD/SMT

Single Primary Winding

Single Secondary Winding

9.52 mm

9 mm

6.35 mm

78253

Power Transformers - Board Mount SM TRANSFORMER

78253/55JC
Murata Power Solutions
1: S/15.57
85In Stock
550On Order

Mfr. Part #
78253/55JC

Mouser Part #
580-78253/55JC

Murata Power Solutions

Power Transformers - Board Mount SM TRANSFORMER

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Datasheet

85In Stock

550On Order

S/15.57

S/13.94

S/13.27

S/10.94

View

Min.: 1
Mult.: 1

5 V

1 W

200 mA

SMD/SMT

Single Primary Winding

Single Secondary Winding

9.52 mm

9 mm

6.35 mm

78253

Power Transformers - Board Mount Max 253 TX 3.3v input 5v out DIP

78253/35C
Murata Power Solutions
1: S/17.63
40In Stock

Mfr. Part #
78253/35C

Mouser Part #
580-7825335C

Murata Power Solutions

Power Transformers - Board Mount Max 253 TX 3.3v input 5v out DIP

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Datasheet

40In Stock

S/17.63

S/14.52

S/13.04

S/11.60

View

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

Power Transformers - Board Mount 1:2.14 TRN 110/550 UH

78253/35VC
Murata Power Solutions
1: S/18.57
111In Stock
500On Order

Mfr. Part #
78253/35VC

Mouser Part #
580-7825335VC

Murata Power Solutions

Power Transformers - Board Mount 1:2.14 TRN 110/550 UH

Learn More

Datasheet

111In Stock

500On Order

S/18.57

S/16.31

S/15.65

S/14.44

View

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

Power Transformers - Board Mount DIP TRANS 4KVDC 5V/5V IN/OUT

78253/55VC
Murata Power Solutions
1: S/18.57
199In Stock

Mfr. Part #
78253/55VC

Mouser Part #
580-7825355VC

Murata Power Solutions

Power Transformers - Board Mount DIP TRANS 4KVDC 5V/5V IN/OUT

Learn More

Datasheet

199In Stock

S/18.57

S/16.31

S/15.65

S/15.14

View

Min.: 1
Mult.: 1

5 V

1 W

200 mA

Through Hole

Single Primary Winding

Single Secondary Winding

9.52 mm

9 mm

6.35 mm

78253

Power Transformers - Board Mount PLEASE SEE MURATA'S SUGGESTED ALTERNATE 78253/55JC

78253/55MC
Murata Power Solutions
1: S/15.57
195In Stock
500Expected 9/21/2026
NRND

Mfr. Part #
78253/55MC

Mouser Part #
580-7825355MC

NRND

Murata Power Solutions

Power Transformers - Board Mount PLEASE SEE MURATA'S SUGGESTED ALTERNATE 78253/55JC

Learn More

Datasheet

195In Stock

500Expected 9/21/2026

S/15.57

S/14.09

S/12.73

S/11.68

View

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

Power Transformers - Board Mount TRANSFORMER 360UH MAX253 SMD

78253/35JC-R
Murata Power Solutions
1: S/17.63
284In Stock
1,000On Order

Mfr. Part #
78253/35JC-R

Mouser Part #
580-78253/35JC-R

Murata Power Solutions

Power Transformers - Board Mount TRANSFORMER 360UH MAX253 SMD

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Datasheet

284In Stock

1,000On Order

Cut Tape

S/17.63

S/14.52

S/13.04

S/12.61

Reel

S/10.28

View

MouseReel Available

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

Power Transformers - Board Mount TFMR 1:2.14, 142 UH 3.3V 100MA

78253/35JVC-R
Murata Power Solutions
1: S/18.57
1,903On Order

Mfr. Part #
78253/35JVC-R

Mouser Part #
580-78253/35JVC-R

Murata Power Solutions

Power Transformers - Board Mount TFMR 1:2.14, 142 UH 3.3V 100MA

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Datasheet

1,903On Order

Cut Tape

S/18.57

S/15.84

S/15.22

S/14.75

Reel

S/13.20

View

MouseReel Available

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

Power Transformers - Board Mount 5VIN 5VOUT 200MA 1500VDC 6PIN

78253/55JC-R
Murata Power Solutions
1: S/15.57
1,000On Order

Mfr. Part #
78253/55JC-R

Mouser Part #
580-78253/55JC-R

Murata Power Solutions

Power Transformers - Board Mount 5VIN 5VOUT 200MA 1500VDC 6PIN

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Datasheet

1,000On Order

Cut Tape

S/15.57

S/14.09

S/11.95

S/11.56

Reel

S/11.02

View

MouseReel Available

Min.: 1
Mult.: 1

: 500

5 V

1 W

200 mA

SMD/SMT

Single Primary Winding

Single Secondary Winding

9.52 mm

9 mm

6.35 mm

78253

Power Transformers - Board Mount TFMR 1:2.27 SM MAX253 MAXIM

78253/35JC
Murata Power Solutions
1: S/14.67
311Expected 10/19/2026

Mfr. Part #
78253/35JC

Mouser Part #
580-78253/35JC

Murata Power Solutions

Power Transformers - Board Mount TFMR 1:2.27 SM MAX253 MAXIM

Learn More

Datasheet

311Expected 10/19/2026

S/14.67

S/13.31

S/11.95

S/10.82

View

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

Power Transformers - Board Mount DIP TRANS 4KVDC 5V/5V IN/OUT

78253/55C
Murata Power Solutions
1: S/15.57
50Expected 10/6/2026

Mfr. Part #
78253/55C

Mouser Part #
580-7825355C

Murata Power Solutions

Power Transformers - Board Mount DIP TRANS 4KVDC 5V/5V IN/OUT

Learn More

Datasheet

50Expected 10/6/2026

S/15.57

S/14.09

S/12.73

S/11.60

View

Min.: 1
Mult.: 1

5 V

500 mW

200 mA

Through Hole

Single Primary Winding

Single Secondary Winding

9.52 mm

9 mm

6.35 mm

78253

Power Transformers - Board Mount 1:2.14 TRN 110/550 UH

78253/35JVC
Murata Power Solutions
1: S/18.57
50Expected 12/3/2026

Mfr. Part #
78253/35JVC

Mouser Part #
580-78253/35JVC

Murata Power Solutions

Power Transformers - Board Mount 1:2.14 TRN 110/550 UH

Learn More

Datasheet

50Expected 12/3/2026

S/18.57

S/16.78

S/16.08

S/14.29

View

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

Power Transformers - Board Mount 5VIN 5VOUT 200MA 4000VDC 6PIN

78253/55JVC-R
Murata Power Solutions
1: S/18.57
185Expected 1/11/2027

Mfr. Part #
78253/55JVC-R

Mouser Part #
580-78253/55JVC-R

Murata Power Solutions

Power Transformers - Board Mount 5VIN 5VOUT 200MA 4000VDC 6PIN

Learn More

Datasheet

185Expected 1/11/2027

Cut Tape

S/18.57

S/16.31

S/15.65

S/15.18

Reel

S/12.57

View

MouseReel Available

Min.: 1
Mult.: 1

: 500

5 V

1 W

200 mA

SMD/SMT

Single Primary Winding

Single Secondary Winding

9.52 mm

9 mm

6.35 mm

78253

Power Transformers - Board Mount PLEASE SEE MURATA'S SUGGESTED ALTERNATE 78253/55JVC-R

78253/55MVC-R
Murata Power Solutions
1: S/19.66
56Factory Stock Available
NRND

Mfr. Part #
78253/55MVC-R

Mouser Part #
580-78253/55MVC-R

NRND

Murata Power Solutions

Power Transformers - Board Mount PLEASE SEE MURATA'S SUGGESTED ALTERNATE 78253/55JVC-R

Learn More

Datasheet

56Factory Stock Available

More Info Available

Cut Tape

S/19.66

S/16.82

S/16.15

S/15.65

Reel

S/13.08

View

MouseReel Available

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

78253J MAX253-Compatible Converter Transformers

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