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 (HKD) 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 PLEASE SEE MURATA'S SUGGESTED ALTERNATE 78253/55JVC 78253/55MVC Murata Power Solutions 1: HK$40.20 407In 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	407In Stock	HK$40.20 HK$33.95 HK$32.72 HK$30.50 View HK$29.59 HK$28.69 HK$28.11 HK$27.54 HK$27.29	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: HK$37.81 737In 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	737In Stock	HK$37.81 HK$34.44 HK$33.04 HK$31.98 View HK$30.99 HK$29.76 HK$28.77 HK$27.87 HK$27.04	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 SM TRANSFORMER 78253/55JC Murata Power Solutions 1: HK$32.88 85In Stock 550On 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	85In Stock 550On Order On Order Ship Dates Mfr. No: 78253/55JC Stock: 85 Can Dispatch Immediately On Order: 450 Expected 9/11/2026 100 Expected 23/11/2026 Factory Lead Time: 8 Weeks	HK$32.88 HK$29.43 HK$28.03 HK$23.10 View HK$22.93 HK$22.85	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 Max 253 TX 3.3v input 5v out DIP 78253/35C Murata Power Solutions 1: HK$37.24 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	HK$37.24 HK$30.66 HK$27.54 HK$24.50 View HK$23.67 HK$22.85 HK$22.28 HK$21.70 HK$21.45	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: HK$39.21 111In Stock 500On 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	111In Stock 500On Order On Order Ship Dates Mfr. No: 78253/35VC Stock: 111 Can Dispatch Immediately On Order: 300 Expected 17/11/2026 200 Expected 1/12/2026 Factory Lead Time: 11 Weeks	HK$39.21 HK$34.44 HK$33.04 HK$30.50 View HK$29.76 HK$27.95 HK$26.06 HK$25.73	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: HK$39.21 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	HK$39.21 HK$34.44 HK$33.04 HK$31.98 View HK$30.99 HK$29.76 HK$28.77 HK$27.87 HK$27.29	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 PLEASE SEE MURATA'S SUGGESTED ALTERNATE 78253/55JC 78253/55MC Murata Power Solutions 1: HK$32.88 185In Stock 500Expected 21/9/2026 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	185In Stock 500Expected 21/9/2026	HK$32.88 HK$29.76 HK$26.88 HK$24.66 View HK$23.92 HK$23.67 HK$23.34 HK$21.54	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: HK$37.24 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 23/11/2026 500 Expected 21/12/2026 Factory Lead Time: 13 Weeks	Cut Tape HK$37.24 HK$30.66 HK$27.54 HK$26.63 Reel HK$21.70 View HK$25.89 HK$24.82 HK$21.04 HK$20.63 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: HK$39.21 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 On Order Ship Dates Mfr. No: 78253/35JVC-R Stock: 0 On Order: 903 Expected 16/10/2026 1,000 Expected 2/11/2026 Factory Lead Time: 13 Weeks	Cut Tape HK$39.21 HK$33.46 HK$32.14 HK$31.15 Reel HK$27.87 View HK$30.17 HK$28.93 HK$26.96 HK$25.98 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: HK$32.88 1,000On Order	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	1,000On Order On Order Ship Dates Mfr. No: 78253/55JC-R Stock: 0 On Order: 500 Expected 28/9/2026 500 Expected 23/11/2026 Factory Lead Time: 13 Weeks	Cut Tape HK$32.88 HK$29.76 HK$25.24 HK$24.41 Reel HK$23.26 View HK$23.67 HK$23.51 HK$22.52 HK$21.62 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 TFMR 1:2.27 SM MAX253 MAXIM 78253/35JC Murata Power Solutions 1: HK$30.99 311Expected 19/10/2026	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	311Expected 19/10/2026	HK$30.99 HK$28.11 HK$25.24 HK$22.85 View HK$22.36 HK$21.87 HK$21.37 HK$20.96	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: HK$32.88 50Expected 6/10/2026	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	50Expected 6/10/2026	HK$32.88 HK$29.76 HK$26.88 HK$24.50 View HK$24.08 HK$23.34 HK$21.13	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: HK$39.21 50Expected 3/12/2026	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 3/12/2026	HK$39.21 HK$35.43 HK$33.95 HK$30.17 View HK$29.02 HK$28.19 HK$27.54 HK$27.29	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: HK$39.21 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 18/12/2026 500 Expected 11/1/2027 Factory Lead Time: 13 Weeks	Cut Tape HK$39.21 HK$34.44 HK$33.04 HK$32.06 Reel HK$26.55 View HK$31.07 HK$30.25 HK$26.47 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-R 78253/55MVC-R Murata Power Solutions 1: HK$41.51 56Factory Stock Available 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	56Factory Stock Available More Info Available	Cut Tape HK$41.51 HK$35.51 HK$34.11 HK$33.04 Reel HK$27.62 View HK$32.06 HK$30.74 HK$27.54 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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