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BMS Isolation Transformers & Common Mode Chokes

Pulse Electronics Isolation Transformers and Common Mode Chokes are a full line of solutions for battery management systems (BMS) for small to large battery pack systems. These BMS components serve serial port safety isolation and electromagnetic interference (EMI) noise rejection applications. These components are critical in large battery pack applications with daisy chain connections. With a high number of cells connected in series, large voltage differences demand component-to-component isolation. These BMS components have multiple package options available and can be customized for specific application requirements. Typical applications include electric vehicles, energy storage, marine, and aviation transportation.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.	Primary Voltage Rating	Mounting Style
Audio Transformers / Signal Transformers MDL SIN XFMR-CMC AEC-Q200 HM1238NL Pulse Electronics 1: $3.44 802In Stock	Mfr. Part No. HM1238NL Mouser Part No 673-HM1238NL	Pulse Electronics	Audio Transformers / Signal Transformers MDL SIN XFMR-CMC AEC-Q200 Learn More about Pulse Electronics pulse battery management systems solutions	Datasheet	802In Stock	$3.44 $3.23 $3.21 $3.11 View $3.04 $2.93 $2.90	Min.: 1 Mult.: 1
Audio Transformers / Signal Transformers MDL SIN XFMR-CMC AEC-Q200 HM1236NL Pulse Electronics 1: $4.09 296In Stock	Mfr. Part No. HM1236NL Mouser Part No 673-HM1236NL	Pulse Electronics	Audio Transformers / Signal Transformers MDL SIN XFMR-CMC AEC-Q200 Learn More about Pulse Electronics pulse battery management systems solutions	Datasheet	296In Stock	$4.09 $3.93 $3.87 $3.80 View $3.33 $3.04	Min.: 1 Mult.: 1
Audio Transformers / Signal Transformers 150-450uH 1500V AEC-Q200 HM2171HLT Pulse Electronics 1: $4.43 1,426In Stock	Mfr. Part No. HM2171HLT Mouser Part No 673-HM2171HLT	Pulse Electronics	Audio Transformers / Signal Transformers 150-450uH 1500V AEC-Q200 Learn More about Pulse Electronics pulse battery management systems solutions	Datasheet	1,426In Stock	Cut Tape $4.43 $4.00 $3.64 $3.52 View Reel $2.59 $3.41 $3.27 $3.14 $2.59 MouseReel Available	Min.: 1 Mult.: 1 : 1,000
Power Transformers - Board Mount 150uH 4300V 1CT:CT DCR=0.45Ohms Basic Single Channel AEC-Q200 HM2169NLT Pulse Electronics 1: $3.45 5,654In Stock New Product	Mfr. Part No. HM2169NLT Mouser Part No 673-HM2169NLT New Product	Pulse Electronics	Power Transformers - Board Mount 150uH 4300V 1CT:CT DCR=0.45Ohms Basic Single Channel AEC-Q200 Learn More about Pulse Electronics pulse battery management systems solutions	Datasheet	5,654In Stock	Cut Tape $3.45 $3.12 $3.00 $2.91 Reel $2.61 View $2.83 $2.70 $2.48 $2.42 MouseReel Available	Min.: 1 Mult.: 1 : 500	4.3 kV	PCB Mount
Power Transformers - Board Mount 150uH 4300V 1CT:CT DCR=0.45Ohms BMS Silicon AEC-Q200 HM2167NLT Pulse Electronics 1: $3.54 486In Stock New Product	Mfr. Part No. HM2167NLT Mouser Part No 673-HM2167NLT New Product	Pulse Electronics	Power Transformers - Board Mount 150uH 4300V 1CT:CT DCR=0.45Ohms BMS Silicon AEC-Q200 Learn More about Pulse Electronics pulse battery management systems solutions	Datasheet	486In Stock	Cut Tape $3.54 $2.90 $2.50 $2.43 Reel $2.30 View $2.35 $2.33 $2.21 $2.17 MouseReel Available	Min.: 1 Mult.: 1 : 500		PCB Mount
Audio Transformers / Signal Transformers MDL SIN XFMR-CMC AEC-Q200 HM2108NL Pulse Electronics 1: $4.87 637In Stock	Mfr. Part No. HM2108NL Mouser Part No 673-HM2108NL	Pulse Electronics	Audio Transformers / Signal Transformers MDL SIN XFMR-CMC AEC-Q200 Learn More about Pulse Electronics pulse battery management systems solutions	Datasheet	637In Stock	$4.87 $4.27 $3.61 $3.50 View $3.43 $3.40 $3.04 $3.00	Min.: 1 Mult.: 1
Power Transformers - Board Mount 150uH 4300V 1CT:1CT DCR=0.45Ohms Functional Dual Channel AEC-Q200 HM2162NLT Pulse Electronics 1: $4.97 18In Stock Factory Special Order	Mfr. Part No. HM2162NLT Mouser Part No 673-HM2162NLT Factory Special Order	Pulse Electronics	Power Transformers - Board Mount 150uH 4300V 1CT:1CT DCR=0.45Ohms Functional Dual Channel AEC-Q200 Learn More about Pulse Electronics pulse battery management systems solutions	Datasheet	18In Stock	Cut Tape $4.97 $4.37 $4.19 $4.06 Reel $3.76 View $3.94 $3.62 $3.47 $3.40 MouseReel Available	Min.: 1 Mult.: 1 : 350	4.3 kV	PCB Mount
Audio Transformers / Signal Transformers 500uH 1500V AEC-Q200 HM2147NLT Pulse Electronics 1: $3.47 1,800Expected 2026/12/14	Mfr. Part No. HM2147NLT Mouser Part No 673-HM2147NLT	Pulse Electronics	Audio Transformers / Signal Transformers 500uH 1500V AEC-Q200 Learn More about Pulse Electronics pulse battery management systems solutions	Datasheet	1,800Expected 2026/12/14	Cut Tape $3.47 $3.13 $2.87 $2.73 Reel $2.12 View $2.71 $2.52 $2.08 $2.05 MouseReel Available	Min.: 1 Mult.: 1 : 900
Audio Transformers / Signal Transformers MDL SIN XFMR AEC-Q200 HM2106NL Pulse Electronics 1: $4.00 Non-Stocked Lead-Time 9 Weeks	Mfr. Part No. HM2106NL Mouser Part No 673-HM2106NL	Pulse Electronics	Audio Transformers / Signal Transformers MDL SIN XFMR AEC-Q200 Learn More about Pulse Electronics pulse battery management systems solutions	Datasheet	Non-Stocked Lead-Time 9 Weeks	$4.00 $3.62 $3.24 $3.12 View $3.04 $2.79 $2.54 $2.47 $2.45	Min.: 1 Mult.: 1
Audio Transformers / Signal Transformers 150uH 1KV AEC-Q200 HM2146NL Pulse Electronics 1: $3.80 Lead-Time 9 Weeks	Mfr. Part No. HM2146NL Mouser Part No 673-HM2146NL	Pulse Electronics	Audio Transformers / Signal Transformers 150uH 1KV AEC-Q200 Learn More about Pulse Electronics pulse battery management systems solutions	Datasheet	Lead-Time 9 Weeks	$3.80 $3.44 $3.20 $3.09 View $2.98 $2.95 $2.54 $2.36 $2.33	Min.: 1 Mult.: 1
Audio Transformers / Signal Transformers 150uH 1KV AEC-Q200 HM2146NLT Pulse Electronics 1,800: $2.06 Non-Stocked Lead-Time 9 Weeks	Mfr. Part No. HM2146NLT Mouser Part No 673-HM2146NLT	Pulse Electronics	Audio Transformers / Signal Transformers 150uH 1KV AEC-Q200 Learn More about Pulse Electronics pulse battery management systems solutions	Datasheet	Non-Stocked Lead-Time 9 Weeks	Cut Tape $2.06 $2.04	Min.: 1,800 Mult.: 900 : 900
Power Transformers - Board Mount 150uH 4300V 1CT:CT DCR=0.45Ohms BMS Silicon AEC-Q200 HM2167NL Pulse Electronics 1: $3.66 Non-Stocked Lead-Time 10 Weeks New Product	Mfr. Part No. HM2167NL Mouser Part No 673-HM2167NL New Product	Pulse Electronics	Power Transformers - Board Mount 150uH 4300V 1CT:CT DCR=0.45Ohms BMS Silicon AEC-Q200 Learn More about Pulse Electronics pulse battery management systems solutions	Datasheet	Non-Stocked Lead-Time 10 Weeks	$3.66 $3.00 $2.59 $2.52 View $2.43 $2.40 $2.38 $2.22	Min.: 1 Mult.: 1		PCB Mount
Power Transformers - Board Mount 150uH 4300V 1CT:CT DCR=0.45Ohms Basic Single Channel AEC-Q200 HM2169NL Pulse Electronics 1: $3.56 Non-Stocked Lead-Time 8 Weeks New Product	Mfr. Part No. HM2169NL Mouser Part No 673-HM2169NL New Product	Pulse Electronics	Power Transformers - Board Mount 150uH 4300V 1CT:CT DCR=0.45Ohms Basic Single Channel AEC-Q200 Learn More about Pulse Electronics pulse battery management systems solutions	Datasheet	Non-Stocked Lead-Time 8 Weeks	$3.56 $3.22 $3.06 $2.97 View $2.86 $2.77 $2.67 $2.61	Min.: 1 Mult.: 1	4.3 kV	PCB Mount
Audio Transformers / Signal Transformers 500uH 1500V AEC-Q200 HM2147NL Pulse Electronics 1: $3.80 Non-Stocked Lead-Time 14 Weeks	Mfr. Part No. HM2147NL Mouser Part No 673-HM2147NL	Pulse Electronics	Audio Transformers / Signal Transformers 500uH 1500V AEC-Q200 Learn More about Pulse Electronics pulse battery management systems solutions	Datasheet	Non-Stocked Lead-Time 14 Weeks	$3.80 $3.44 $3.20 $3.09 View $2.98 $2.95 $2.54 $2.38 $2.36	Min.: 1 Mult.: 1
Audio Transformers / Signal Transformers 150-450uH 1500V AEC-Q200 HM2171HL Pulse Electronics 700: $4.45 Non-Stocked Lead-Time 16 Weeks	Mfr. Part No. HM2171HL Mouser Part No 673-HM2171HL	Pulse Electronics	Audio Transformers / Signal Transformers 150-450uH 1500V AEC-Q200 Learn More about Pulse Electronics pulse battery management systems solutions	Datasheet	Non-Stocked Lead-Time 16 Weeks	$4.45 $4.35 $4.27	Min.: 700 Mult.: 35

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