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Battery Management Systems

Eaton provides a wide portfolio of products for Battery Management Systems (BMS), including terminal blocks, fuses, supercapacitors, chokes, inductors, and more. Battery Management Systems monitor individual cells, system voltage, current, and temperature. When monitoring individual cells, the BMS balances voltages and regulates the current flow, and if the upper or lower voltage, current, or temperature limit is exceeded, the BMS temporarily disconnects the load or source. Eaton Battery Management Systems estimate the State of Health (SoH), State of Charge (SoC), State of Energy (SoE), and State of Power (SoP) in batteries.

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Part #

Current Transformers - Board Mount 7A 1:125, 1280 uH, 3m? Pri, 13.0 ? Sec, 50 KHz-1MHz, SMT

ECST1V0504-1125-R
Eaton Electronics
1: £4.71
2,000In Stock

Mfr. Part No.
ECST1V0504-1125-R

Mouser Part No
504-ECST1V05041125-R

Eaton Electronics

Current Transformers - Board Mount 7A 1:125, 1280 uH, 3m? Pri, 13.0 ? Sec, 50 KHz-1MHz, SMT

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Datasheet

2,000In Stock

Cut Tape

£4.71

£3.65

£3.36

£3.19

View

Reel

£2.61

MouseReel Available

Min.: 1
Mult.: 1

Reel: 2,000

Supercapacitors / Ultracapacitors Eaton HSL Hybrid Supercapacitor, 3.8V, 10F, 1.5 ohm, Low T

HSL0814-3R8106-R
Eaton Electronics
1: £2.71
274In Stock

Mfr. Part No.
HSL0814-3R8106-R

Mouser Part No
504-HSL0814-3R8106-R

Eaton Electronics

Supercapacitors / Ultracapacitors Eaton HSL Hybrid Supercapacitor, 3.8V, 10F, 1.5 ohm, Low T

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Datasheet

274In Stock

£2.71

£1.90

£1.59

£1.48

View

Min.: 1
Mult.: 1

Supercapacitors / Ultracapacitors Eaton HSL Hybrid Supercapacitor, 3.8V, 25F, 0.65 ohm, Low T

HSL0820-3R8256-R
Eaton Electronics
1: £3.89
292In Stock
1,200Expected 07/07/2026

Mfr. Part No.
HSL0820-3R8256-R

Mouser Part No
504-HSL0820-3R8256-R

Eaton Electronics

Supercapacitors / Ultracapacitors Eaton HSL Hybrid Supercapacitor, 3.8V, 25F, 0.65 ohm, Low T

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Datasheet

292In Stock

1,200Expected 07/07/2026

£3.89

£2.82

£2.33

£2.15

View

Min.: 1
Mult.: 1

Audio Transformers / Signal Transformers LAN PoE Txfmr, 100 BASE-T, 350uH, Open Hdr, Single Port, 16pins, 1500Vac

LAN1VSOPS16351C2
Eaton Electronics
1: £1.07
621In Stock
1,200Expected 09/06/2026

Mfr. Part No.
LAN1VSOPS16351C2

Mouser Part No
504-LAN1VSOPS16351C2

Eaton Electronics

Audio Transformers / Signal Transformers LAN PoE Txfmr, 100 BASE-T, 350uH, Open Hdr, Single Port, 16pins, 1500Vac

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Datasheet

621In Stock

1,200Expected 09/06/2026

Cut Tape

£1.07

£0.969

£0.899

£0.871

Reel

£0.743

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,200

Audio Transformers / Signal Transformers LAN Txfmr, 100 BASE-T, 350uH, Open Hdr, Single Port, 16pins , 1500Vac

LAN1VSOS16351C2
Eaton Electronics
1: £1.27
450In Stock
1,200Expected 18/05/2026

Mfr. Part No.
LAN1VSOS16351C2

Mouser Part No
504-LAN1VSOS16351C2

Eaton Electronics

Audio Transformers / Signal Transformers LAN Txfmr, 100 BASE-T, 350uH, Open Hdr, Single Port, 16pins , 1500Vac

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Datasheet

450In Stock

1,200Expected 18/05/2026

Cut Tape

£1.27

£0.925

£0.834

£0.732

Reel

£0.60

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 600

Audio Transformers / Signal Transformers LAN Txfmr, 1000 BASE-T, 350uH, Open Hdr, Single Port, 24pins, 1500Vac

LAN2VSOS24351C2
Eaton Electronics
1: £1.23
710In Stock
1,700Expected 18/05/2026

Mfr. Part No.
LAN2VSOS24351C2

Mouser Part No
504-LAN2VSOS24351C2

Eaton Electronics

Audio Transformers / Signal Transformers LAN Txfmr, 1000 BASE-T, 350uH, Open Hdr, Single Port, 24pins, 1500Vac

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Datasheet

710In Stock

1,700Expected 18/05/2026

Cut Tape

£1.23

£1.12

£1.05

£1.04

Reel

£0.871

View

MouseReel Available

Min.: 1
Mult.: 1

Reel: 1,700

Supercapacitors / Ultracapacitors .22F 2.5V EDLC B SERIES CYL

B0510-2R5224-R
Eaton Electronics
1: £1.83
3,796In Stock

Mfr. Part No.
B0510-2R5224-R

Mouser Part No
504-B0510-2R5224-R

Eaton Electronics

Supercapacitors / Ultracapacitors .22F 2.5V EDLC B SERIES CYL

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Datasheet

3,796In Stock

£1.83

£1.37

£1.24

£1.07

View

Min.: 1
Mult.: 1

Supercapacitors / Ultracapacitors HS Hybrid Supercapacitor, 3.8V, 50F, 450mW

HS1020-3R8506-R
Eaton Electronics
1: £4.03
1,224In Stock

Mfr. Part No.
HS1020-3R8506-R

Mouser Part No
504-HS1020-3R8506-R

Eaton Electronics

Supercapacitors / Ultracapacitors HS Hybrid Supercapacitor, 3.8V, 50F, 450mW

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Datasheet

1,224In Stock

£4.03

£3.10

Min.: 1
Mult.: 1

Supercapacitors / Ultracapacitors 3F 2.7V EDLC HV SERIES CYL

HV0820-2R7305-R
Eaton Electronics
1: £1.31
2,196In Stock

Mfr. Part No.
HV0820-2R7305-R

Mouser Part No
504-HV0820-2R7305-R

Eaton Electronics

Supercapacitors / Ultracapacitors 3F 2.7V EDLC HV SERIES CYL

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Datasheet

Product Comments

2,196In Stock

£1.31

£0.995

£0.856

Reel

£0.803

£0.684

View

Min.: 1
Mult.: 1

Reel: 100

Supercapacitors / Ultracapacitors 5F 2.7V EDLC HV SERIES CYL

HV1020-2R7505-R
Eaton Electronics
1: £1.79
11,162In Stock

Mfr. Part No.
HV1020-2R7505-R

Mouser Part No
504-HV1020-2R7505-R

Eaton Electronics

Supercapacitors / Ultracapacitors 5F 2.7V EDLC HV SERIES CYL

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Datasheet

Product Comments

11,162In Stock

£1.79

£1.19

£1.02

Reel

£0.871

£0.818

£0.759

Min.: 1
Mult.: 1

Reel: 100

Supercapacitors / Ultracapacitors .1F 5.5V EDLC Coin Cell Cyl

KR-5R5C104-R
Eaton Electronics
1: £2.37
734In Stock

Mfr. Part No.
KR-5R5C104-R

Mouser Part No
504-KR-5R5C104-R

Eaton Electronics

Supercapacitors / Ultracapacitors .1F 5.5V EDLC Coin Cell Cyl

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Datasheet

734In Stock

£2.37

£1.68

£1.52

Min.: 1
Mult.: 1

Supercapacitors / Ultracapacitors 1.5F 5.5V EDLC Coin Cell Cyl

KR-5R5C155-R
Eaton Electronics
1: £4.77
818In Stock

Mfr. Part No.
KR-5R5C155-R

Mouser Part No
504-KR-5R5C155-R

Eaton Electronics

Supercapacitors / Ultracapacitors 1.5F 5.5V EDLC Coin Cell Cyl

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Datasheet

818In Stock

£4.77

£3.50

£2.99

£2.84

View

Min.: 1
Mult.: 1

Supercapacitors / Ultracapacitors .33F 5.5V EDLC Coin Cell Cyl

KR-5R5C334-R
Eaton Electronics
1: £4.98
530In Stock

Mfr. Part No.
KR-5R5C334-R

Mouser Part No
504-KR-5R5C334-R

Eaton Electronics

Supercapacitors / Ultracapacitors .33F 5.5V EDLC Coin Cell Cyl

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Datasheet

530In Stock

£4.98

£3.68

£3.07

£2.86

View

Min.: 1
Mult.: 1

Supercapacitors / Ultracapacitors .47F 5.5V EDLC Coin Cell Cyl

KR-5R5C474-R
Eaton Electronics
1: £4.23
3,607In Stock

Mfr. Part No.
KR-5R5C474-R

Mouser Part No
504-KR-5R5C474-R

Eaton Electronics

Supercapacitors / Ultracapacitors .47F 5.5V EDLC Coin Cell Cyl

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Datasheet

3,607In Stock

£4.23

£3.25

£2.83

£2.79

View

Min.: 1
Mult.: 1

Supercapacitors / Ultracapacitors .1F 5.5V EDLC Coin Cell HORZ

KR-5R5H104-R
Eaton Electronics
1: £3.27
1,597In Stock

Mfr. Part No.
KR-5R5H104-R

Mouser Part No
504-KR-5R5H104-R

Eaton Electronics

Supercapacitors / Ultracapacitors .1F 5.5V EDLC Coin Cell HORZ

Learn More

Datasheet

1,597In Stock

£3.27

£2.34

£2.10

£2.08

View

Min.: 1
Mult.: 1

Supercapacitors / Ultracapacitors .33F 5.5V EDLC Coin Cell HORZ

KR-5R5H334-R
Eaton Electronics
1: £3.13
1,616In Stock
1,500Expected 20/07/2026

Mfr. Part No.
KR-5R5H334-R

Mouser Part No
504-KR-5R5H334-R

Eaton Electronics

Supercapacitors / Ultracapacitors .33F 5.5V EDLC Coin Cell HORZ

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Datasheet

1,616In Stock

1,500Expected 20/07/2026

£3.13

£2.23

£2.21

£2.01

View

Min.: 1
Mult.: 1

Supercapacitors / Ultracapacitors .47F 5.5V EDLC Coin Cell HORZ

KR-5R5H474-R
Eaton Electronics
1: £5.26
2,412In Stock

Mfr. Part No.
KR-5R5H474-R

Mouser Part No
504-KR-5R5H474-R

Eaton Electronics

Supercapacitors / Ultracapacitors .47F 5.5V EDLC Coin Cell HORZ

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Datasheet

2,412In Stock

£5.26

£4.30

£3.70

£3.52

£3.22

Min.: 1
Mult.: 1

Supercapacitors / Ultracapacitors .1F 5.5V EDLC Coin Cell VERT

KR-5R5V104-R
Eaton Electronics
1: £2.93
2,926In Stock

Mfr. Part No.
KR-5R5V104-R

Mouser Part No
504-KR-5R5V104-R

Eaton Electronics

Supercapacitors / Ultracapacitors .1F 5.5V EDLC Coin Cell VERT

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Datasheet

2,926In Stock

£2.93

£2.12

£1.92

£1.82

£1.80

Min.: 1
Mult.: 1

Supercapacitors / Ultracapacitors 1.5F 5.5V EDLC Coin Cell VERT

KR-5R5V155-R
Eaton Electronics
1: £6.82
1,488In Stock

Mfr. Part No.
KR-5R5V155-R

Mouser Part No
504-KR-5R5V155-R

Eaton Electronics

Supercapacitors / Ultracapacitors 1.5F 5.5V EDLC Coin Cell VERT

Learn More

Datasheet

1,488In Stock

£6.82

£5.38

£4.83

Min.: 1
Mult.: 1

Supercapacitors / Ultracapacitors .22F 5.5v EDLC Coin Cell VERT

KR-5R5V224-R
Eaton Electronics
1: £2.98
4,294In Stock

Mfr. Part No.
KR-5R5V224-R

Mouser Part No
504-KR-5R5V224-R

Eaton Electronics

Supercapacitors / Ultracapacitors .22F 5.5v EDLC Coin Cell VERT

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Datasheet

4,294In Stock

£2.98

£2.11

£1.76

£1.66

View

Min.: 1
Mult.: 1

Supercapacitors / Ultracapacitors .33F 5.5V EDLC Coin Cell VERT

KR-5R5V334-R
Eaton Electronics
1: £2.30
1,192In Stock

Mfr. Part No.
KR-5R5V334-R

Mouser Part No
504-KR-5R5V334-R

Eaton Electronics

Supercapacitors / Ultracapacitors .33F 5.5V EDLC Coin Cell VERT

Learn More

Datasheet

1,192In Stock

£2.30

£1.97

£1.95

£1.88

View

Min.: 1
Mult.: 1

Supercapacitors / Ultracapacitors .47F 5.5V EDLC Coin Cell VERT

KR-5R5V474-R
Eaton Electronics
1: £5.00
546In Stock

Mfr. Part No.
KR-5R5V474-R

Mouser Part No
504-KR-5R5V474-R

Eaton Electronics

Supercapacitors / Ultracapacitors .47F 5.5V EDLC Coin Cell VERT

Learn More

Datasheet

546In Stock

£5.00

£4.00

£3.62

£3.45

£3.22

Min.: 1
Mult.: 1

Supercapacitors / Ultracapacitors CAP 0.1F 5.5V EDLC Coin Cell Cylind

KW-5R5C104-R
Eaton Electronics
1: £5.96
1,164In Stock
4,800Expected 20/07/2026

Mfr. Part No.
KW-5R5C104-R

Mouser Part No
504-KW-5R5C104-R

Eaton Electronics

Supercapacitors / Ultracapacitors CAP 0.1F 5.5V EDLC Coin Cell Cylind

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Datasheet

1,164In Stock

4,800Expected 20/07/2026

£5.96

£4.43

£3.71

£3.47

View

Min.: 1
Mult.: 1

Supercapacitors / Ultracapacitors CAP 0.22F 5.5V EDLC Coin Cell Cylind

KW-5R5C224-R
Eaton Electronics
1: £4.70
2,363In Stock

Mfr. Part No.
KW-5R5C224-R

Mouser Part No
504-KW-5R5C224-R

Eaton Electronics

Supercapacitors / Ultracapacitors CAP 0.22F 5.5V EDLC Coin Cell Cylind

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Datasheet

2,363In Stock

£4.70

£3.99

£3.43

£3.30

View

Min.: 1
Mult.: 1

Supercapacitors / Ultracapacitors CAP 0.33F 5.5V EDLC Coin Cell Cylind

KW-5R5C334-R
Eaton Electronics
1: £6.15
1,667In Stock
2,400Expected 26/05/2026

Mfr. Part No.
KW-5R5C334-R

Mouser Part No
504-KW-5R5C334-R

Eaton Electronics

Supercapacitors / Ultracapacitors CAP 0.33F 5.5V EDLC Coin Cell Cylind

Learn More

Datasheet

1,667In Stock

2,400Expected 26/05/2026

£6.15

£4.56

£3.83

£3.58

View

Min.: 1
Mult.: 1

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