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78250J Converter Transformers

Murata Power Solutions 78250J Converter Transformers are specifically designed for use with Maxim MAX250/MAX251 chipsets to provide isolated RS232 interfaces. Murata Power Solutions has ensured consistent performance with carefully controlled ratio turns. The 78250J converter transformers feature J-STD-020D reflow and isolation to 4kVrms, while the toroidal construction minimizes EMI.

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Select	Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (KRW) Filter the results in the table by unit price based on your quantity.	Qty.	RoHS	ECAD Model	Secondary Current Rating	Mounting Style	Length	Width	Height	Series
	Power Transformers - Board Mount MAX250 TRANS 4KVDC 2.5MH DIP 78250JVC-R Murata Power Solutions 1: ₩7,924.8 241In Stock 500Expected 11/6/2026	Mfr. Part # 78250JVC-R Mouser Part # 580-78250JVC-R	Murata Power Solutions	Power Transformers - Board Mount MAX250 TRANS 4KVDC 2.5MH DIP Learn More about Murata Power Solutions Murata78250J	Datasheet	241In Stock 500Expected 11/6/2026	Cut Tape ₩7,924.8 ₩6,349.2 ₩6,099.6 ₩5,912.4 Reel ₩5,116.8 View ₩5,725.2 ₩5,491.2 ₩5,038.8 ₩4,976.4 MouseReel Available	Min.: 1 Mult.: 1 : 500			300 mA	SMD/SMT	12.7 mm	9 mm	6.35 mm	78250
	Power Transformers - Board Mount 78250JC-R Murata Power Solutions 1: ₩6,240 290In Stock 500Expected 11/25/2026	Mfr. Part # 78250JC-R Mouser Part # 580-78250JC-R	Murata Power Solutions	Power Transformers - Board Mount Learn More about Murata Power Solutions Murata78250J	Datasheet	290In Stock 500Expected 11/25/2026	Cut Tape ₩6,240 ₩5,647.2 ₩5,101.2 ₩4,945.2 Reel ₩4,430.4 View ₩4,789.2 ₩4,680 ₩4,243.2 ₩4,134 MouseReel Available	Min.: 1 Mult.: 1 : 500			300 mA	SMD/SMT	12.7 mm	9 mm	6.35 mm	78250
	Power Transformers - Board Mount MAX250 TRANS 4KVDC 2.5MH DIP 78250VC Murata Power Solutions 1: ₩7,441.2 20In Stock	Mfr. Part # 78250VC Mouser Part # 580-78250VC	Murata Power Solutions	Power Transformers - Board Mount MAX250 TRANS 4KVDC 2.5MH DIP Learn More about Murata Power Solutions Murata78250J	Datasheet	20In Stock	₩7,441.2 ₩6,536.4 ₩6,271.2 ₩5,803.2 View ₩5,647.2 ₩5,241.6 ₩5,148 ₩5,101.2	Min.: 1 Mult.: 1				Through Hole	9.52 mm	9 mm	6.35 mm	78250
	Power Transformers - Board Mount MAX250 TRANS 2MH SMD 78250JC Murata Power Solutions 1: ₩5,881.2 100On Order	Mfr. Part # 78250JC Mouser Part # 580-78250JC	Murata Power Solutions	Power Transformers - Board Mount MAX250 TRANS 2MH SMD Learn More about Murata Power Solutions Murata78250J	Datasheet	100On Order On Order Ship Dates Mfr. #: 78250JC Stock: 0 On Order: 50 Expected 1/4/2027 50 Expected 1/18/2027 Factory Lead-Time: 11 Weeks	₩5,881.2 ₩5,335.2 ₩4,945.2 ₩4,368 View ₩4,258.8 ₩4,180.8 ₩4,118.4 ₩4,056 ₩4,024.8	Min.: 1 Mult.: 1			300 mA	SMD/SMT	12.7 mm	9 mm	6.35 mm	78250
	Power Transformers - Board Mount 2 MH POWER TRANSFORMER 78250JVC Murata Power Solutions 1: ₩7,878 97Expected 12/28/2026	Mfr. Part # 78250JVC Mouser Part # 580-78250JVC	Murata Power Solutions	Power Transformers - Board Mount 2 MH POWER TRANSFORMER Learn More about Murata Power Solutions Murata78250J	Datasheet	97Expected 12/28/2026	₩7,878 ₩6,739.2 ₩6,474 ₩6,255.6 View ₩6,068.4 ₩5,818.8 ₩5,444.4	Min.: 1 Mult.: 1			300 mA	SMD/SMT	12.7 mm	9 mm	6.35 mm	78250