Audio Transformers / Signal Transformers

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Transformers for Battery Management Systems

Würth Elektronik WE-BMS Transformers are designed to fulfill the requirements in high voltage operation areas for a safe and reliable battery management system (BMS). These transformers feature a common-mode choke to filter noise and electrically isolate the signals, allowing them to support the BMS isolation and EMI noise suppression for a safe and reliable operation. WE-BMS transformers feature a low-profile design and a higher creepage distance that increases the safety and reliability of the system despite the footprint. Würth Elektronik WE-BMS transformers are suitable for solar energy storage, energy storage systems (ESS), and uninterrupted power supplies (UPS).

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Part #

Audio Transformers / Signal Transformers WE-BMS SMT Transfomr 2Ch -40C/+125CAEC-Q200

74942300
Wurth Elektronik
1: 50,46 kr
387In Stock

Mfr. Part No.
74942300

Mouser Part No
710-74942300

Wurth Elektronik

Audio Transformers / Signal Transformers WE-BMS SMT Transfomr 2Ch -40C/+125CAEC-Q200

Learn More

Datasheet

387In Stock

Cut Tape

50,46 kr

43,88 kr

39,75 kr

35,93 kr

35,83 kr

Reel

29,79 kr

MouseReel Available

Min.: 1
Mult.: 1

: 450

SMT transformer

SMD/SMT

450 uH

- 40 C

+ 125 C

1 Channel

15.1 mm

14.2 mm

4.75 mm

WE-BMS

AEC-Q200

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers WE-BMS BMS 2 channels 1500V -40/ +125C

74942400
Wurth Elektronik
1: 70,70 kr
754In Stock

Mfr. Part No.
74942400

Mouser Part No
710-74942400

Wurth Elektronik

Audio Transformers / Signal Transformers WE-BMS BMS 2 channels 1500V -40/ +125C

Learn More

Datasheet

754In Stock

Cut Tape

70,70 kr

60,84 kr

53,64 kr

47,06 kr

Reel

45,37 kr

MouseReel Available

Min.: 1
Mult.: 1

: 500

Transformers

SMT Transformer

SMD/SMT

450 uH

- 40 C

+ 125 C

1 Channel

Energy Storage Systems

24.52 mm

15.45 mm

4.85 mm

WE-BMS

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers WE-BMS BMS 450uH 2Channel 1500V -40/ +125C

74942401
Wurth Elektronik
1: 70,70 kr
669In Stock

Mfr. Part No.
74942401

Mouser Part No
710-74942401

Wurth Elektronik

Audio Transformers / Signal Transformers WE-BMS BMS 450uH 2Channel 1500V -40/ +125C

Learn More

Datasheet

669In Stock

Cut Tape

70,70 kr

60,84 kr

53,64 kr

47,06 kr

Reel

45,37 kr

MouseReel Available

Min.: 1
Mult.: 1

: 500

Transformers

SMT Transformer

SMD/SMT

450 uH

- 40 C

+ 125 C

1 Channel

Energy Storage systems

24.52 mm

15.45 mm

4.85 mm

WE-BMS

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers WE-BMS BMS 1 channel 1500V -40 / +125C

74942402
Wurth Elektronik
1: 56,71 kr
1 171In Stock
900Expected 2026-08-28

Mfr. Part No.
74942402

Mouser Part No
710-74942402

Wurth Elektronik

Audio Transformers / Signal Transformers WE-BMS BMS 1 channel 1500V -40 / +125C

Learn More

Datasheet

1 171In Stock

900Expected 2026-08-28

Cut Tape

56,71 kr

50,14 kr

44,84 kr

40,07 kr

Reel

35,19 kr

MouseReel Available

Min.: 1
Mult.: 1

: 300

Transformers

SMT Transformer

SMD/SMT

450 uH

- 40 C

+ 125 C

1 Channel

Battery Management

24 mm

12.5 mm

7.3 mm

WE-BMS

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers WE-BMS SMT Transfomr 1Ch -40C/+125C AEC-Q200

74941300
Wurth Elektronik
1: 32,86 kr
721In Stock

Mfr. Part No.
74941300

Mouser Part No
710-74941300

Wurth Elektronik

Audio Transformers / Signal Transformers WE-BMS SMT Transfomr 1Ch -40C/+125C AEC-Q200

Learn More

Datasheet

721In Stock

Cut Tape

32,86 kr

28,41 kr

25,76 kr

23,21 kr

23,11 kr

Reel

18,66 kr

MouseReel Available

Min.: 1
Mult.: 1

: 650

SMT transformer

SMD/SMT

450 uH

- 40 C

+ 125 C

1 Channel

8.9 mm

7.6 mm

5.5 mm

WE-BMS

AEC-Q200

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers WE-BMS SMT Transfomr 1Ch -40C/+125C AEC-Q200

74941301
Wurth Elektronik
1: 32,86 kr
625In Stock

Mfr. Part No.
74941301

Mouser Part No
710-74941301

Wurth Elektronik

Audio Transformers / Signal Transformers WE-BMS SMT Transfomr 1Ch -40C/+125C AEC-Q200

Learn More

Datasheet

625In Stock

Cut Tape

32,86 kr

28,41 kr

25,76 kr

23,21 kr

Reel

18,66 kr

MouseReel Available

Min.: 1
Mult.: 1

: 650

SMT transformer

SMD/SMT

450 uH

- 40 C

+ 125 C

1 Channel

8.9 mm

7.6 mm

5.5 mm

WE-BMS

AEC-Q200

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers WE-BMS SMT Transfomr 1Ch -40C/+125C AEC-Q200

74941302
Wurth Elektronik
1: 32,86 kr
517In Stock
850Expected 2026-08-21

Mfr. Part No.
74941302

Mouser Part No
710-74941302

Wurth Elektronik

Audio Transformers / Signal Transformers WE-BMS SMT Transfomr 1Ch -40C/+125C AEC-Q200

Learn More

Datasheet

517In Stock

850Expected 2026-08-21

Cut Tape

32,86 kr

28,41 kr

25,76 kr

23,11 kr

Reel

20,46 kr

MouseReel Available

Min.: 1
Mult.: 1

: 850

SMT transformer

SMD/SMT

450 uH

- 40 C

+ 125 C

1 Channel

14.3 mm

9.5 mm

3.45 mm

WE-BMS

AEC-Q200

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers WE-BMS SMT Transfomr 2Ch -40C/+125CAEC-Q200

74942302
Wurth Elektronik
1: 50,46 kr
191In Stock

Mfr. Part No.
74942302

Mouser Part No
710-74942302

Wurth Elektronik

Audio Transformers / Signal Transformers WE-BMS SMT Transfomr 2Ch -40C/+125CAEC-Q200

Learn More

Datasheet

191In Stock

Cut Tape

50,46 kr

43,88 kr

39,75 kr

35,83 kr

Reel

29,04 kr

MouseReel Available

Min.: 1
Mult.: 1

: 550

SMT transformer

SMD/SMT

450 uH

- 40 C

+ 125 C

1 Channel

15.1 mm

14.7 mm

4.75 mm

WE-BMS

AEC-Q200

Reel, Cut Tape, MouseReel

Audio Transformers / Signal Transformers WE-BMS SMT Transfomr 2Ch -40C/+125CAEC-Q200

74942301
Wurth Elektronik
550: 34,34 kr
Non-Stocked Lead-Time 18 Weeks

Mfr. Part No.
74942301

Mouser Part No
710-74942301

Wurth Elektronik

Audio Transformers / Signal Transformers WE-BMS SMT Transfomr 2Ch -40C/+125CAEC-Q200

Learn More

Datasheet

Non-Stocked Lead-Time 18 Weeks

Reel

34,34 kr

Min.: 550
Mult.: 550

: 550

SMT transformer

SMD/SMT

450 uH

- 40 C

+ 125 C

1 Channel

15.1 mm

14.2 mm

3.45 mm

WE-BMS

AEC-Q200

Reel

Transformers for Battery Management Systems

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