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Battery Fuel Gauge IC Protection

Littelfuse offers protection components for battery fuel gauge ICs. Battery Fuel Gauge ICs are critical components to the battery management system within battery-operated electronics, including drones, medical equipment, small appliances, and mobile and wearable devices. Fuel gauge ICs monitor the battery state of charge, sending the data to power management ICs to provide optimal battery life, longevity, and overall system performance. Protecting the fuel gauge ICs is important due to the increased voltage in batteries up to 20V for USB-C. Sustained overvoltage, ESD, overcurrent faults, and overheating are all hazards that could damage the battery management system if proper protection is not used.

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Part #

Resettable Fuses - PPTC 80 Ohms 82 mA 13 VDC - 20 C+ 60 C

zeptoSMDC0011F
Littelfuse
1: $0.626
12,155In Stock

Mfr. Part No.
zeptoSMDC0011F

Mouser Part No
576-ZEPTOSMDC0011F

Resettable Fuses - PPTC 80 Ohms 82 mA 13 VDC - 20 C+ 60 C

Datasheet

12,155In Stock

Cut Tape

$0.626

$0.566

$0.471

$0.434

View

Reel

$0.275

MouseReel Available

Min.: 1
Mult.: 1

: 15,000

Thermal Cut-offs MHP-TAC15-12-85N

MHP-TAC15-12-85N
Littelfuse
1: $2.58
722In Stock

Mfr. Part No.
MHP-TAC15-12-85N

Mouser Part No
576-RF4783-000

Thermal Cut-offs MHP-TAC15-12-85N

Datasheet

722In Stock

$2.58

$2.33

$2.23

$2.00

View

Min.: 1
Mult.: 1

ESD Protection Diodes / TVS Diodes 1CH 30KV 5V

SP1006-01UTG
Littelfuse
1: $0.639
6,805In Stock
15,000Expected 31/8/2026

Mfr. Part No.
SP1006-01UTG

Mouser Part No
576-SP1006-01UTG

ESD Protection Diodes / TVS Diodes 1CH 30KV 5V

Datasheet

6,805In Stock

15,000Expected 31/8/2026

Cut Tape

$0.639

$0.409

$0.249

$0.19

View

Reel

$0.103

MouseReel Available

Min.: 1
Mult.: 1

: 15,000

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 5K OHM 5% 0805 SMT

KR502F0J
Littelfuse
1: $1.01
3,500Expected 31/8/2026

Mfr. Part No.
KR502F0J

Mouser Part No
576-KR502F0J

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 5K OHM 5% 0805 SMT

Datasheet

3,500Expected 31/8/2026

$1.01

$0.953

$0.892

$0.85

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 10K OHM 5% 0603 SMT

RB103E0J
Littelfuse
1: $0.938
240Expected 10/9/2026

Mfr. Part No.
RB103E0J

Mouser Part No
576-RB103E0J

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 10K OHM 5% 0603 SMT

Datasheet

240Expected 10/9/2026

$0.938

$0.713

$0.613

$0.592

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors THERMISTOR, US SENSO

KR104R0J
Littelfuse
1: $1.48
3,493Expected 7/10/2026

Mfr. Part No.
KR104R0J

Mouser Part No
576-KR104R0J

NTC (Negative Temperature Coefficient) Thermistors THERMISTOR, US SENSO

Datasheet

3,493Expected 7/10/2026

$1.48

$1.14

$0.942

$0.904

View

Min.: 1
Mult.: 1

NTC (Negative Temperature Coefficient) Thermistors THERMISTOR

RA103J0Q-TR
Littelfuse
10,000: $0.272
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
RA103J0Q-TR

Mouser Part No
576-RA103J0Q-TR

NTC (Negative Temperature Coefficient) Thermistors THERMISTOR

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

$0.272

Min.: 10,000
Mult.: 10,000

: 10,000

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 10K OHM 5% 0603 SMT

RB103K0J
Littelfuse
4,000: $0.369
Non-Stocked Lead-Time 12 Weeks

Mfr. Part No.
RB103K0J

Mouser Part No
576-RB103K0J

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 10K OHM 5% 0603 SMT

Datasheet

Non-Stocked Lead-Time 12 Weeks

$0.369

Min.: 4,000
Mult.: 4,000

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 200K OHM 5% 0805 SMT

KR204R0J
Littelfuse
1: $1.58
Non-Stocked Lead-Time 14 Weeks

Mfr. Part No.
KR204R0J

Mouser Part No
576-KR204R0J

NTC (Negative Temperature Coefficient) Thermistors NTC THERMISTOR 200K OHM 5% 0805 SMT

Datasheet

Non-Stocked Lead-Time 14 Weeks

$1.58

$1.18

$0.942

$0.887

View

Min.: 1
Mult.: 1

Thermal Cut-offs MHP-TAC15-12-72N

MHP-TAC15-12-72N
Littelfuse
1: $2.27
Non-Stocked

Mfr. Part No.
MHP-TAC15-12-72N

Mouser Part No
576-RF4780-000

Thermal Cut-offs MHP-TAC15-12-72N

Datasheet

Non-Stocked

$2.27

$2.00

$1.90

$1.70

View

Min.: 1
Mult.: 1

Thermal Cut-offs MHP-TAC15-12-77N

MHP-TAC15-12-77N
Littelfuse
1,000: $1.22
Non-Stocked Lead-Time 15 Weeks

Mfr. Part No.
MHP-TAC15-12-77N

Mouser Part No
576-RF4781-000

Thermal Cut-offs MHP-TAC15-12-77N

Datasheet

Non-Stocked Lead-Time 15 Weeks

$1.22

Min.: 1,000
Mult.: 1,000

Thermal Cut-offs MHP-TAC15-12-82N

MHP-TAC15-12-82N
Littelfuse
1,000: $1.36
Non-Stocked

Mfr. Part No.
MHP-TAC15-12-82N

Mouser Part No
576-RF4782-000

Thermal Cut-offs MHP-TAC15-12-82N

Datasheet

Non-Stocked

$1.36

Min.: 1,000
Mult.: 1,000

NTC (Negative Temperature Coefficient) Thermistors THERMISTOR, US SENSO

KR503L0J
Littelfuse
Lead-Time 12 Weeks

Mfr. Part No.
KR503L0J

Mouser Part No
576-KR503L0J

NTC (Negative Temperature Coefficient) Thermistors THERMISTOR, US SENSO

Datasheet

Lead-Time 12 Weeks

Quote

NTC (Negative Temperature Coefficient) Thermistors THERMISTOR, US SENSOR

RA104R0J
Littelfuse
Non-Stocked Lead-Time 15 Weeks

Mfr. Part No.
RA104R0J

Mouser Part No
576-RA104R0J

NTC (Negative Temperature Coefficient) Thermistors THERMISTOR, US SENSOR

Datasheet

Non-Stocked Lead-Time 15 Weeks

Quote

Resettable Fuses - PPTC 60 Ohms 200 mA 13 VDC - 20 C+ 60 C

zeptoSMDC0015F
Littelfuse
Non-Stocked

Mfr. Part No.
zeptoSMDC0015F

Mouser Part No
576-ZEPTOSMDC0015F

Resettable Fuses - PPTC 60 Ohms 200 mA 13 VDC - 20 C+ 60 C

Datasheet

Non-Stocked

Quote