Power Transformers - Board Mount

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Battery Management System

Bourns Battery Management Systems (BMS) manage the state of health (SoC) while charging and discharging battery systems. BMS components feature shunt resistors, high-voltage signals, power transformers, and shielded power inductors. Current sense resistors are AEC-Q200 qualified with a continuous current of 1000A and a low 50µΩ resistance. Bourns signal transformers include common-mode chokes for noise rejection for BMS applications. The shielded power inductors and high creepage high clearance (HCT) transformers are suitable for automotive power conversion, DC-DC converters, power supplies, and communication electronics.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (JPY) Filter the results in the table by unit price based on your quantity.	Qty.	Product	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 Push-Pull Func-Insultn 3.3V 1:1.7 1W PAD001-T764117S Bourns 1: ¥423.6 5,227In Stock	Mfr. Part # PAD001-T764117S Mouser Part # 652-PAD001-T764117S	Bourns	Power Transformers - Board Mount Push-Pull Func-Insultn 3.3V 1:1.7 1W Learn More about Bourns pad00x t764	Datasheet	5,227In Stock	Cut Tape ¥423.6 ¥343.8 ¥297.3 ¥289 Reel ¥257.5 View ¥279 ¥277.4 ¥214.3 MouseReel Available	Min.: 1 Mult.: 1 : 800	Isolation Transformers			1 W		PCB Mount			7.1 mm	6.55 mm	4 mm
Power Transformers - Board Mount Push-Pull Func-Insultn 3.3V 1:2 1W PAD001-T764120S Bourns 1: ¥375.4 6,285In Stock	Mfr. Part # PAD001-T764120S Mouser Part # 652-PAD001-T764120S	Bourns	Power Transformers - Board Mount Push-Pull Func-Insultn 3.3V 1:2 1W Learn More about Bourns pad00x t764	Datasheet	6,285In Stock	Cut Tape ¥375.4 ¥340.5 ¥312.3 ¥302.3 Reel ¥262.4 View ¥297.3 ¥292.3 ¥280.7 ¥234.2 MouseReel Available	Min.: 1 Mult.: 1 : 800	Isolation Transformers			1 W		PCB Mount			7.1 mm	6.55 mm	4 mm
Power Transformers - Board Mount BMS xformer 1-Ch 1000V AECQ +125 C SM91502ALE Bourns 1: ¥619.6 13,903In Stock	Mfr. Part # SM91502ALE Mouser Part # 652-SM91502ALE	Bourns	Power Transformers - Board Mount BMS xformer 1-Ch 1000V AECQ +125 C Learn More about Bourns bms transformers	Datasheet	13,903In Stock	Cut Tape ¥619.6 ¥561.4 ¥516.6 ¥500 View Reel ¥400.3 ¥423.6 ¥411.9 ¥400.3 ¥400.3 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	BMS Transformers					PCB Mount	Single Primary Winding	Single Secondary Winding	7.62 mm	6.73 mm	5.72 mm	SM91502ALE
Power Transformers - Board Mount Transformer, Flyback, 17x11x6mm, 25uH BA60951CS Bourns 1: ¥609.6 209In Stock	Mfr. Part # BA60951CS Mouser Part # 652-BA60951CS	Bourns	Power Transformers - Board Mount Transformer, Flyback, 17x11x6mm, 25uH Learn More about Bourns ba60951cs flyback transformers	Datasheet	209In Stock	Cut Tape ¥609.6 ¥551.5 ¥511.6 ¥495 View Reel ¥413.6 ¥480 ¥476.7 ¥413.6	Min.: 1 Mult.: 1 : 2,750	Flyback Transformers	7 V to 24 V	15 V	2.25 W	150 mA	PCB Mount	Dual Primary Winding	Dual Secondary Winding	13.6 mm	10.5 mm	5.97 mm	BA60951CS
Power Transformers - Board Mount Push-Pull Func-Insultn 5V 1:1.3 1.5W PAD002-T764113S Bourns 1: ¥352.1 2,511In Stock	Mfr. Part # PAD002-T764113S Mouser Part # 652-PAD002-T764113S	Bourns	Power Transformers - Board Mount Push-Pull Func-Insultn 5V 1:1.3 1.5W Learn More about Bourns pad00x t764	Datasheet	2,511In Stock	Cut Tape ¥352.1 ¥318.9 ¥292.3 ¥284 Reel ¥242.5 View ¥275.7 ¥269.1 ¥255.8 ¥237.5 MouseReel Available	Min.: 1 Mult.: 1 : 800	Isolation Transformers			2 W		PCB Mount			7.1 mm	6.55 mm	4 mm
Power Transformers - Board Mount BMS Transformer/CMC, 6PIN, SGL, 4.3k VDC AEC-Q200 SM91502ALA-E Bourns 1: ¥390.3 8,640In Stock	Mfr. Part # SM91502ALA-E Mouser Part # 652-SM91502ALA-E	Bourns	Power Transformers - Board Mount BMS Transformer/CMC, 6PIN, SGL, 4.3k VDC AEC-Q200 Learn More about Bourns sm91502ala bms signal transformers	Datasheet	8,640In Stock	Cut Tape ¥390.3 ¥342.2 ¥312.3 ¥304 View Reel ¥269.1 ¥295.7 ¥289 ¥282.4 ¥270.7 ¥269.1 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	BMS Transformers					PCB Mount	Single Primary Winding	Single Secondary Winding	7.62 mm	6.73 mm	5.59 mm	SM91501ALA
Power Transformers - Board Mount BMS Transformer/CMC, 12PIN, DUAL, 4.3k VDC SM91501ALO-E Bourns 1: ¥687.7 474In Stock 2,000Expected 10/26/2026	Mfr. Part # SM91501ALO-E Mouser Part # 652-SM91501ALO-E	Bourns	Power Transformers - Board Mount BMS Transformer/CMC, 12PIN, DUAL, 4.3k VDC Learn More about Bourns sm91501alo bms transformers	Datasheet	474In Stock 2,000Expected 10/26/2026	Cut Tape ¥687.7 ¥622.9 ¥581.4 ¥563.1 View Reel ¥470.1 ¥546.5 ¥526.5 ¥511.6 ¥501.6 ¥470.1 MouseReel Available	Min.: 1 Mult.: 1 : 2,000	BMS Transformers					PCB Mount	Single Primary Winding	Single Secondary Winding	14.81 mm	11.68 mm	4.87 mm	SM91501ALO
Power Transformers - Board Mount Push-Pull Func-Insultn 5V 1:1.1 1.5W PAD002-T764111S Bourns 1: ¥343.8 646In Stock 6,400Expected 1/26/2027	Mfr. Part # PAD002-T764111S Mouser Part # 652-PAD002-T764111S	Bourns	Power Transformers - Board Mount Push-Pull Func-Insultn 5V 1:1.1 1.5W Learn More about Bourns pad00x t764	Datasheet	646In Stock 6,400Expected 1/26/2027	Cut Tape ¥343.8 ¥312.3 ¥290.7 ¥282.4 Reel ¥242.5 View ¥274.1 ¥267.4 ¥255.8 ¥237.5 MouseReel Available	Min.: 1 Mult.: 1 : 800	Isolation Transformers			2 W		PCB Mount			7.1 mm	6.55 mm	4 mm
Power Transformers - Board Mount CMC,6PIN,SGL,4.3KVDC AEC-Q200 SM91514AL-E Bourns 1: ¥453.5 20,000On Order	Mfr. Part # SM91514AL-E Mouser Part # 652-SM91514AL-E	Bourns	Power Transformers - Board Mount CMC,6PIN,SGL,4.3KVDC AEC-Q200 Learn More about Bourns sm91514al bms transformers	Datasheet	20,000On Order On Order Ship Dates Mfr. #: SM91514AL-E Stock: 0 On Order: 8,000 Expected 10/7/2026 12,000 Expected 11/23/2026 Factory Lead-Time: 12 Weeks	Cut Tape ¥453.5 ¥400.3 ¥353.8 ¥345.5 View Reel ¥292.3 ¥338.8 ¥322.2 ¥292.3 MouseReel Available	Min.: 1 Mult.: 1 : 4,000	BMS Transformers					PCB Mount	Single Primary Winding	Single Secondary Winding	7.62 mm	6.73 mm	5.72 mm	SM91514AL
Power Transformers - Board Mount 6.4 VDC SM91534AL-E Bourns 1: ¥1,092.9 4,200On Order	Mfr. Part # SM91534AL-E Mouser Part # 652-SM91534AL-E	Bourns	Power Transformers - Board Mount 6.4 VDC Learn More about Bourns sm91534ala bms signal transformers	Datasheet	4,200On Order On Order Ship Dates Mfr. #: SM91534AL-E Stock: 0 On Order: 2,400 Expected 12/8/2026 1,800 Expected 2/15/2027 Factory Lead-Time: 18 Weeks	Cut Tape ¥1,092.9 ¥988.3 ¥948.4 ¥918.5 Reel ¥805.6 View ¥890.3 ¥847.1 ¥772.4 MouseReel Available	Min.: 1 Mult.: 1 : 600	BMS Transformers					SMD/SMT	Single Primary Winding	Single Secondary Winding	28 mm	12.5 mm	8.5 mm