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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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.	Primary Voltage Rating	Secondary Voltage Rating	Power Rating	Secondary Current Rating	Mounting Style	Primary Winding	Secondary Winding	Length	Width	Height	Series
Power Transformers - Board Mount Max 253 TX 3.3v input 5v out DIP 78253/35C Murata Power Solutions 1: $5.89 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 Learn More about Murata Power Solutions Murata78253J	Datasheet	40In Stock	$5.89 $4.85 $4.36 $3.87 View $3.74 $3.61 $3.52 $3.43 $3.39	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 5VIN 5VOUT 200MA 1500VDC 6PIN 78253/55JC-R Murata Power Solutions 1: $5.20 500Expected 12/28/2026	Mfr. Part # 78253/55JC-R Mouser Part # 580-78253/55JC-R	Murata Power Solutions	Power Transformers - Board Mount 5VIN 5VOUT 200MA 1500VDC 6PIN Learn More about Murata Power Solutions Murata78253J	Datasheet	500Expected 12/28/2026	Cut Tape $5.20 $4.71 $3.99 $3.86 View Reel $3.42 $3.74 $3.72 $3.42 MouseReel Available	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
Power Transformers - Board Mount PLEASE SEE MURATA'S SUGGESTED ALTERNATE 78253/55JVC 78253/55MVC Murata Power Solutions 1: $6.20 313In 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 Learn More about Murata Power Solutions Murata78253J	Datasheet	313In Stock	$6.20 $5.27 $5.08 $4.73 View $4.59 $4.45 $4.36 $4.26	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
Power Transformers - Board Mount TFMR 1:1.33, 4KV SM MAX253 MAX 78253/55JVC Murata Power Solutions 1: $6.20 586In 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 Learn More about Murata Power Solutions Murata78253J	Datasheet	586In Stock	$6.20 $5.45 $5.23 $5.06 View $4.90 $4.71 $4.55 $4.41 $4.32	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
Power Transformers - Board Mount TFMR 1:2.27 SM MAX253 MAXIM 78253/35JC Murata Power Solutions 1: $4.90 226In Stock	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 about Murata Power Solutions Murata78253J	Datasheet	226In Stock	$4.90 $4.45 $3.99 $3.61 View $3.54 $3.46 $3.38 $3.32	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 SM TRANSFORMER 78253/55JC Murata Power Solutions 1: $5.20 50In Stock 1,500On Order	Mfr. Part # 78253/55JC Mouser Part # 580-78253/55JC	Murata Power Solutions	Power Transformers - Board Mount SM TRANSFORMER Learn More about Murata Power Solutions Murata78253J	Datasheet	50In Stock 1,500On Order On Order Ship Dates Mfr. #: 78253/55JC Stock: 50 Can Ship Immediately On Order: 100 Expected 11/23/2026 450 Expected 4/5/2027 300 Expected 4/12/2027 650 Expected 4/19/2027 Factory Lead-Time: 8 Weeks	$5.20 $4.45 $4.12 $3.78 View $3.68 $3.61	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
Power Transformers - Board Mount DIP TRANS 4KVDC 5V/5V IN/OUT 78253/55VC Murata Power Solutions 1: $6.57 124In 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 about Murata Power Solutions Murata78253J	Datasheet	124In Stock	$6.57 $5.62 $5.40 $5.21 View $5.06 $4.85 $4.69 $4.55 $4.46	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
Power Transformers - Board Mount TRANSFORMER 360UH MAX253 SMD 78253/35JC-R Murata Power Solutions 1: $4.90 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 Learn More about Murata Power Solutions Murata78253J	Datasheet	284In Stock 1,000On Order On Order Ship Dates Mfr. #: 78253/35JC-R Stock: 284 Can Ship Immediately On Order: 500 Expected 12/28/2026 500 Expected 3/8/2027 Factory Lead-Time: 13 Weeks	Cut Tape $4.90 $4.45 $4.12 $4.00 Reel $3.76 View $3.87 $3.84 $3.65 $3.43 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 PLEASE SEE MURATA'S SUGGESTED ALTERNATE 78253/55JC 78253/55MC Murata Power Solutions 1: $5.20 130In Stock 500On Order 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 about Murata Power Solutions Murata78253J	Datasheet	130In Stock 500On Order	$5.20 $4.71 $4.25 $3.90 View $3.78 $3.74 $3.69 $3.41	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 1:2.14 TRN 110/550 UH 78253/35VC Murata Power Solutions 1: $6.20 1,150On 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 about Murata Power Solutions Murata78253J	Datasheet	1,150On Order On Order Ship Dates Mfr. #: 78253/35VC Stock: 0 On Order: 400 Expected 1/4/2027 500 Expected 4/5/2027 250 Expected 4/26/2027 Factory Lead-Time: 11 Weeks	$6.20 $5.45 $5.23 $4.82 View $4.71 $4.42 $4.12 $4.07	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 TFMR 1:2.14, 142 UH 3.3V 100MA 78253/35JVC-R Murata Power Solutions 1: $6.20 1,860Expected 4/5/2027	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 Learn More about Murata Power Solutions Murata78253J	Datasheet	1,860Expected 4/5/2027	Cut Tape $6.20 $5.45 $5.23 $5.07 Reel $4.55 View $4.91 $4.72 $4.37 $4.26 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 4000VDC 6PIN 78253/55JVC-R Murata Power Solutions 1: $6.57 685On Order	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 about Murata Power Solutions Murata78253J	Datasheet	685On Order On Order Ship Dates Mfr. #: 78253/55JVC-R Stock: 0 On Order: 185 Expected 4/5/2027 500 Expected 4/12/2027 Factory Lead-Time: 13 Weeks	Cut Tape $6.57 $5.45 $5.24 $5.07 Reel $4.55 View $4.91 $4.72 $4.41 $4.23 MouseReel Available	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
Power Transformers - Board Mount DIP TRANS 4KVDC 5V/5V IN/OUT 78253/55C Murata Power Solutions 1: $5.20 625On Order	Mfr. Part # 78253/55C Mouser Part # 580-7825355C	Murata Power Solutions	Power Transformers - Board Mount DIP TRANS 4KVDC 5V/5V IN/OUT Learn More about Murata Power Solutions Murata78253J	Datasheet	625On Order On Order Ship Dates Mfr. #: 78253/55C Stock: 0 On Order: 25 Expected 4/19/2027 600 Expected 4/26/2027 Factory Lead-Time: 8 Weeks	$5.20 $4.71 $4.25 $4.11 View $3.98 $3.89 $3.81 $3.69 $3.43	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
Power Transformers - Board Mount 1:2.14 TRN 110/550 UH 78253/35JVC Murata Power Solutions 1: $6.20 50Expected 4/5/2027	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 about Murata Power Solutions Murata78253J	Datasheet	50Expected 4/5/2027	$6.20 $5.45 $5.23 $5.06 View $4.89 $4.69 $4.56 $4.42 $4.37	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 PLEASE SEE MURATA'S SUGGESTED ALTERNATE 78253/55JVC-R 78253/55MVC-R Murata Power Solutions 1: $6.57 Non-Stocked Lead-Time 8 Weeks 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 about Murata Power Solutions Murata78253J	Datasheet	Non-Stocked Lead-Time 8 Weeks	Cut Tape $6.57 $5.62 $5.40 $5.23 Reel $4.55 View $5.07 $4.86 $4.38 $4.36 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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78253J MAX253-Compatible Converter Transformers

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