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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 #

NTC Thermistors NTC THERMISTOR 5K OHM 5% 0805 SMT

KR502F0J
Littelfuse
1: $1.07
3,500In Stock

Mfr. Part #
KR502F0J

Mouser Part #
576-KR502F0J

NTC Thermistors NTC THERMISTOR 5K OHM 5% 0805 SMT

Datasheet

3,500In Stock

$1.07

$1.01

$0.945

$0.90

View

Min.: 1
Mult.: 1

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

zeptoSMDC0011F
Littelfuse
1: $0.662
12,155In Stock

Mfr. Part #
zeptoSMDC0011F

Mouser Part #
576-ZEPTOSMDC0011F

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

Datasheet

12,155In Stock

Cut Tape

$0.662

$0.599

$0.498

$0.459

View

Reel

$0.291

MouseReel Available

Min.: 1
Mult.: 1

: 15,000

Thermal Cutoffs MHP-TAC15-12-85N

MHP-TAC15-12-85N
Littelfuse
1: $2.74
720In Stock

Mfr. Part #
MHP-TAC15-12-85N

Mouser Part #
576-RF4783-000

Thermal Cutoffs MHP-TAC15-12-85N

Datasheet

720In Stock

$2.74

$2.46

$2.36

$2.12

View

Min.: 1
Mult.: 1

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

SP1006-01UTG
Littelfuse
1: $0.691
17,654In Stock

Mfr. Part #
SP1006-01UTG

Mouser Part #
576-SP1006-01UTG

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

Datasheet

17,654In Stock

Cut Tape

$0.691

$0.314

$0.265

$0.202

View

Reel

$0.109

MouseReel Available

Min.: 1
Mult.: 1

: 15,000

NTC Thermistors NTC THERMISTOR 10K OHM 5% 0603 SMT

RB103E0J
Littelfuse
1: $0.994
240Expected 2026-09-10

Mfr. Part #
RB103E0J

Mouser Part #
576-RB103E0J

NTC Thermistors NTC THERMISTOR 10K OHM 5% 0603 SMT

Datasheet

240Expected 2026-09-10

$0.994

$0.755

$0.649

$0.626

View

Min.: 1
Mult.: 1

NTC Thermistors THERMISTOR, US SENSO

KR104R0J
Littelfuse
1: $1.67
3,493Expected 2026-10-07

Mfr. Part #
KR104R0J

Mouser Part #
576-KR104R0J

NTC Thermistors THERMISTOR, US SENSO

Datasheet

3,493Expected 2026-10-07

$1.67

$1.25

$0.998

$0.939

View

Min.: 1
Mult.: 1

NTC Thermistors THERMISTOR

RA103J0Q-TR
Littelfuse
10,000: $0.288
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
RA103J0Q-TR

Mouser Part #
576-RA103J0Q-TR

NTC Thermistors THERMISTOR

Datasheet

Non-Stocked Lead-Time 12 Weeks

Reel

$0.288

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

: 10,000

NTC Thermistors NTC THERMISTOR 10K OHM 5% 0603 SMT

RB103K0J
Littelfuse
4,000: $0.39
Non-Stocked Lead-Time 12 Weeks

Mfr. Part #
RB103K0J

Mouser Part #
576-RB103K0J

NTC Thermistors NTC THERMISTOR 10K OHM 5% 0603 SMT

Datasheet

Non-Stocked Lead-Time 12 Weeks

$0.39

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

NTC Thermistors NTC THERMISTOR 200K OHM 5% 0805 SMT

KR204R0J
Littelfuse
3,500: $0.672
Non-Stocked Lead-Time 14 Weeks

Mfr. Part #
KR204R0J

Mouser Part #
576-KR204R0J

NTC Thermistors NTC THERMISTOR 200K OHM 5% 0805 SMT

Datasheet

Non-Stocked Lead-Time 14 Weeks

$0.672

Min.: 3,500
Mult.: 3,500

Thermal Cutoffs MHP-TAC15-12-72N

MHP-TAC15-12-72N
Littelfuse
1: $2.40
Non-Stocked

Mfr. Part #
MHP-TAC15-12-72N

Mouser Part #
576-RF4780-000

Thermal Cutoffs MHP-TAC15-12-72N

Datasheet

Non-Stocked

$2.40

$2.12

$2.02

$1.80

View

Min.: 1
Mult.: 1

Thermal Cutoffs MHP-TAC15-12-77N

MHP-TAC15-12-77N
Littelfuse
1,000: $1.29
Non-Stocked Lead-Time 15 Weeks

Mfr. Part #
MHP-TAC15-12-77N

Mouser Part #
576-RF4781-000

Thermal Cutoffs MHP-TAC15-12-77N

Datasheet

Non-Stocked Lead-Time 15 Weeks

$1.29

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

Thermal Cutoffs MHP-TAC15-12-82N

MHP-TAC15-12-82N
Littelfuse
1,000: $1.44
Non-Stocked

Mfr. Part #
MHP-TAC15-12-82N

Mouser Part #
576-RF4782-000

Thermal Cutoffs MHP-TAC15-12-82N

Datasheet

Non-Stocked

$1.44

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

NTC Thermistors THERMISTOR, US SENSO

KR503L0J
Littelfuse
Lead-Time 12 Weeks

Mfr. Part #
KR503L0J

Mouser Part #
576-KR503L0J

NTC Thermistors THERMISTOR, US SENSO

Datasheet

Lead-Time 12 Weeks

Quote

NTC Thermistors THERMISTOR, US SENSOR

RA104R0J
Littelfuse
Non-Stocked Lead-Time 15 Weeks

Mfr. Part #
RA104R0J

Mouser Part #
576-RA104R0J

NTC 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 #
zeptoSMDC0015F

Mouser Part #
576-ZEPTOSMDC0015F

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

Datasheet

Non-Stocked

Quote