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 (IDR) 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: Rp83.107 40In Stock	Mfr. Part No. 78253/35C Mouser Part No 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	Rp83.107 Rp68.431 Rp61.459 Rp54.671 View Rp52.836 Rp51.002 Rp49.718 Rp48.433 Rp47.883	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: Rp73.384 500In Stock 500Expected 28/12/2026	Mfr. Part No. 78253/55JC-R Mouser Part No 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 28/12/2026	Cut Tape Rp73.384 Rp66.413 Rp56.322 Rp54.488 View Reel Rp48.250 Rp52.836 Rp52.470 Rp48.250 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: Rp87.510 353In Stock NRND	Mfr. Part No. 78253/55MVC Mouser Part No 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	Rp87.510 Rp74.301 Rp71.733 Rp66.779 View Rp64.761 Rp62.743 Rp61.459 Rp60.175	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: Rp87.510 586In Stock	Mfr. Part No. 78253/55JVC Mouser Part No 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	Rp87.510 Rp76.870 Rp73.751 Rp71.366 View Rp69.164 Rp66.413 Rp64.211 Rp62.193 Rp60.909	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: Rp69.164 311In Stock	Mfr. Part No. 78253/35JC Mouser Part No 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	Rp69.164 Rp62.743 Rp56.322 Rp51.002 View Rp49.901 Rp48.800 Rp47.700 Rp46.782	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: Rp73.384 50In Stock 1.500On Order	Mfr. Part No. 78253/55JC Mouser Part No 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. No: 78253/55JC Stock: 50 Can Dispatch Immediately On Order: 450 Expected 09/11/2026 300 Expected 16/11/2026 100 Expected 23/11/2026 650 Expected 24/11/2026 Factory Lead Time: 8 Weeks	Rp73.384 Rp65.679 Rp62.560 Rp51.552 View Rp51.185 Rp51.002	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: Rp87.510 106In Stock 750On Order	Mfr. Part No. 78253/35VC Mouser Part No 580-7825335VC	Murata Power Solutions	Power Transformers - Board Mount 1:2.14 TRN 110/550 UH Learn More about Murata Power Solutions Murata78253J	Datasheet	106In Stock 750On Order On Order Ship Dates Mfr. No: 78253/35VC Stock: 106 Can Dispatch Immediately On Order: 500 Expected 05/04/2027 250 Expected 26/04/2027 Factory Lead Time: 11 Weeks	Rp87.510 Rp76.870 Rp73.751 Rp68.064 View Rp66.413 Rp62.376 Rp58.157 Rp57.423	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: Rp92.647 199In Stock	Mfr. Part No. 78253/55VC Mouser Part No 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	Rp92.647 Rp79.255 Rp76.136 Rp73.567 View Rp71.366 Rp68.431 Rp66.229 Rp64.211 Rp62.927	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: Rp69.164 284In Stock 1.000On Order	Mfr. Part No. 78253/35JC-R Mouser Part No 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. No: 78253/35JC-R Stock: 284 Can Dispatch Immediately On Order: 500 Expected 21/12/2026 500 Expected 28/12/2026 Factory Lead Time: 13 Weeks	Cut Tape Rp69.164 Rp62.743 Rp58.157 Rp56.506 Reel Rp53.020 View Rp54.671 Rp54.121 Rp51.552 Rp46.782 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: Rp73.384 182In Stock 500On Order NRND	Mfr. Part No. 78253/55MC Mouser Part No 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	Rp73.384 Rp66.413 Rp59.991 Rp55.038 View Rp53.387 Rp52.836 Rp52.103 Rp48.067	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: Rp87.510 1.903On Order	Mfr. Part No. 78253/35JVC-R Mouser Part No 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 Rp87.510 Rp74.668 Rp71.733 Rp69.531 Reel Rp62.193 View Rp67.330 Rp64.578 Rp60.175 Rp57.973 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: Rp92.647 685On Order	Mfr. Part No. 78253/55JVC-R Mouser Part No 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. No: 78253/55JVC-R Stock: 0 On Order: 185 Expected 05/04/2027 500 Expected 12/04/2027 Factory Lead Time: 13 Weeks	Cut Tape Rp92.647 Rp79.255 Rp76.136 Rp73.751 Reel Rp63.661 View Rp71.549 Rp68.614 Rp63.477 Rp61.459 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: Rp73.384 625On Order	Mfr. Part No. 78253/55C Mouser Part No 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. No: 78253/55C Stock: 0 On Order: 25 Expected 25/11/2026 600 Expected 01/12/2026 Factory Lead Time: 8 Weeks	Rp73.384 Rp66.413 Rp59.991 Rp54.671 View Rp53.754 Rp52.103 Rp47.149	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: Rp87.510 50Expected 05/04/2027	Mfr. Part No. 78253/35JVC Mouser Part No 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 05/04/2027	Rp87.510 Rp79.071 Rp75.769 Rp67.330 View Rp64.761 Rp62.927 Rp61.459 Rp60.909	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: Rp92.647 Non-Stocked Lead-Time 8 Weeks NRND	Mfr. Part No. 78253/55MVC-R Mouser Part No 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 Rp92.647 Rp79.255 Rp76.136 Rp73.751 Reel Rp64.211 View Rp71.549 Rp68.614 Rp61.826 Rp61.459 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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