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 (CLP) 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: $4.974 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	$4.974 $4.095 $3.678 $3.272 View $3.162 $3.052 $2.975 $2.899 $2.866	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: $4.392 500In Stock 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	500In Stock 500Expected 12/28/2026	Cut Tape $4.392 $3.975 $3.371 $3.261 View Reel $2.888 $3.162 $3.140 $2.888 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: $5.237 353In 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	353In Stock	$5.237 $4.447 $4.293 $3.997 View $3.876 $3.755 $3.678 $3.601	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: $5.237 587In 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	587In Stock	$5.237 $4.600 $4.414 $4.271 View $4.139 $3.975 $3.843 $3.722 $3.645	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: $4.139 311In 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	311In Stock	$4.139 $3.755 $3.371 $3.052 View $2.986 $2.921 $2.855 $2.800	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: $4.392 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: 450 Expected 11/9/2026 300 Expected 11/16/2026 650 Expected 11/24/2026 100 Expected 12/21/2026 Factory Lead-Time: 8 Weeks	$4.392 $3.931 $3.744 $3.085 View $3.063 $3.052	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 1:2.14 TRN 110/550 UH 78253/35VC Murata Power Solutions 1: $5.237 39In Stock 750On 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	39In Stock 750On Order On Order Ship Dates Mfr. #: 78253/35VC Stock: 39 Can Ship Immediately On Order: 250 Expected 12/18/2026 500 Expected 4/5/2027 Factory Lead-Time: 11 Weeks	$5.237 $4.600 $4.414 $4.073 View $3.975 $3.733 $3.481 $3.437	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: $5.545 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 about Murata Power Solutions Murata78253J	Datasheet	199In Stock	$5.545 $4.743 $4.557 $4.403 View $4.271 $4.095 $3.964 $3.843 $3.766	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: $4.139 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 12/21/2026 500 Expected 12/28/2026 Factory Lead-Time: 13 Weeks	Cut Tape $4.139 $3.755 $3.481 $3.382 Reel $3.173 View $3.272 $3.239 $3.085 $2.800 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: $4.392 182In 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	182In Stock 500On Order	$4.392 $3.975 $3.590 $3.294 View $3.195 $3.162 $3.118 $2.877	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 TFMR 1:2.14, 142 UH 3.3V 100MA 78253/35JVC-R Murata Power Solutions 1: $5.237 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 Learn More about Murata Power Solutions Murata78253J	Datasheet	1.903On Order	Cut Tape $5.237 $4.469 $4.293 $4.161 Reel $3.722 View $4.029 $3.865 $3.601 $3.470 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: $5.545 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 $5.545 $4.743 $4.557 $4.414 Reel $3.810 View $4.282 $4.106 $3.799 $3.678 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: $4.392 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 11/25/2026 600 Expected 12/1/2026 Factory Lead-Time: 8 Weeks	$4.392 $3.975 $3.590 $3.272 View $3.217 $3.118 $2.822	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: $5.237 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	$5.237 $4.732 $4.535 $4.029 View $3.876 $3.766 $3.678 $3.645	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 500: $3.843 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	Reel $3.843 $3.700 $3.678	Min.: 500 Mult.: 500 : 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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