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  • Circuit Protection

Littelfuse - Circuit Protection

131,293 Results

Categories of Circuit Protection

  • Circuit Breakers & Accessories (66,013)
  • Circuit Protection Kits (823)
  • ESD Protection Diodes / TVS Diodes (15,296)
  • Fuse Holders (3,366)
  • Fuses (27,213)
  • Gas Discharge Tubes - GDTs / Gas Plasma Arrestors (1,665)
  • LED Protection Devices (285)
  • Resettable Fuses - PPTC (3,804)
  • Surge Protective Devices - SPD (2,519)
  • Thermal Cutoffs (112)
  • Thermistors (4,893)
  • Thyristors (6,889)
  • Varistors (8,455)
131,293 Results
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Part
Availability
Purchasing
RoHS/Lead
Part # Aliases
Datasheet
Mfr: SA5.0A
TTI: SA5.0A
Littelfuse
Availability:

120,000In Stock

ESD Protection Diodes / TVS Diodes SA5.0A Uni-Directional

120,000In Stock

Tariff May Apply
Please adjust quantity to Min / Mult value
Datasheet
Mfr: 0213002.MXP
TTI: 0213002.MXP
Littelfuse
Availability:

2,100In Stock

Cartridge Fuses 250V 2A Slo-Blo

2,100In Stock

Tariff May Apply
Please adjust quantity to Min / Mult value
Datasheet
Mfr: 39611000440
TTI: 39611000440
Littelfuse
Availability:

1,950In Stock

Fuses with Leads - Through Hole 125V UL TL SL 1A TE5

1,950In Stock

Tariff May Apply
Please adjust quantity to Min / Mult value
Datasheet
Mfr: 0299080.ZXNV
TTI: 0299080.ZXNV
Littelfuse
Availability:

1,950In Stock

Automotive Fuses 80A 32V Maxi Fuse

1,950In Stock

Please adjust quantity to Min / Mult value
Datasheet
Mfr: 0239.500MXP
TTI: 0239.500HXP
Littelfuse
Availability:

500In Stock

Cartridge Fuses 250V .5A Slo-Blo

500In Stock

Tariff May Apply
Please adjust quantity to Min / Mult value
Datasheet
Mfr: 03453LF2H
TTI: 03453LF2H
Littelfuse
Availability:

300In Stock

Fuse Holder Shock Safe 3AG

300In Stock

Please adjust quantity to Min / Mult value
Datasheet
Mfr: 04611.25ER
TTI: 04611.25ER
Littelfuse
Availability:

20,000In Stock

Surface Mount Fuses 600VAC 1.25A .104ohms 461 NANO2

20,000In Stock

Tariff May Apply
Please adjust quantity to Min / Mult value
576-04611.25
04611.25
Datasheet
Mfr: V22ZA3P
TTI: V22ZA3P
Littelfuse
Availability:

1,400In Stock

8,400 On Order
Expected 03-Dec-26
Varistors 14 VAC 4J 43V-CL 1KA-PK

1,400In Stock

8,400 On Order
Expected 03-Dec-26
Tariff May Apply
Please adjust quantity to Min / Mult value
Datasheet
Mfr: V18MLE0603NH
TTI: V18MLE0603NH
Littelfuse
Availability:

5,000In Stock

27,500 On Order
Expected
Varistors 18V

5,000In Stock

27,500 On Order
Expected
Tariff May Apply
Please adjust quantity to Min / Mult value
Datasheet
Mfr: V20E130P
TTI: V20E130P
Littelfuse
Availability:

500In Stock

Varistors 130V 20mm Epoxy UltraMOV

500In Stock

Tariff May Apply
Please adjust quantity to Min / Mult value
Datasheet
Mfr: SMBJ78CA
TTI: SMBJ78CA
Littelfuse
Availability:

3,000In Stock

6,000 On Order
Expected 16-Feb-27
ESD Protection Diodes / TVS Diodes 600W 78V 5% Bi-Directional

3,000In Stock

6,000 On Order
Expected 16-Feb-27
Tariff May Apply
Please adjust quantity to Min / Mult value
Datasheet
Mfr: RF2638-000
TTI: RXEF090-2
Littelfuse
Availability:

12,000In Stock

Resettable Fuses - PPTC Radial Lead .9A 72V 40A Imax

12,000In Stock

Tariff May Apply
Please adjust quantity to Min / Mult value
A83967-000
RF2638-000
Datasheet
Mfr: RF3321-000
TTI: RHEF1000
Littelfuse
Availability:

500In Stock

Resettable Fuses - PPTC RHEF1000

500In Stock

Tariff May Apply
Please adjust quantity to Min / Mult value
D86144-000
RF3321-000
Datasheet
Mfr: 0218.040MXP
TTI: 0218.040HXP
Littelfuse
Availability:

1,325In Stock

Cartridge Fuses 250V .04A Time Lag (Slo-Blo)

1,325In Stock

Tariff May Apply
Please adjust quantity to Min / Mult value
Datasheet
Mfr: 0298080.ZXEH
TTI: 0298080.ZXEH
Littelfuse
Availability:

340In Stock

Automotive Fuses 32V 80A

340In Stock

Tariff May Apply
Please adjust quantity to Min / Mult value
Datasheet
Mfr: 031302.5MXP
TTI: 031302.5HXP
Littelfuse
Availability:

1,000In Stock

Cartridge Fuses 250V 2.5A Slo-Blo

1,000In Stock

Tariff May Apply
Please adjust quantity to Min / Mult value
Datasheet
Mfr: 045202.5MRL
TTI: 045202.5MRL
Littelfuse
Availability:

13,000In Stock

Surface Mount Fuses 125VAC 2.5A .045ohms 452 NANO2

13,000In Stock

Tariff May Apply
Please adjust quantity to Min / Mult value
Datasheet
Mfr: V5.5MLA1206NH
TTI: V5.5MLA1206NH
Littelfuse
Availability:

7,500In Stock

Varistors 5.5V 150A 3500pF

7,500In Stock

Tariff May Apply
Please adjust quantity to Min / Mult value
Datasheet
Mfr: 758968-000
TTI: LVR055S
Littelfuse
Availability:

500In Stock

Resettable Fuses - PPTC .55A 120 VAC/VDC 20/5.5A Imax

500In Stock

Tariff May Apply
Please adjust quantity to Min / Mult value
758968-000
Datasheet
Mfr: V251HA40
TTI: V251HA40
Littelfuse
Availability:

40In Stock

Varistors 250V 40kA 5000pF

40In Stock

Tariff May Apply
Please adjust quantity to Min / Mult value
Datasheet
Mfr: SMAJ7.5A
TTI: SMAJ7.5A
Littelfuse
Availability:

110,000In Stock

ESD Protection Diodes / TVS Diodes 400W 7.5V 5% Uni-Directional

110,000In Stock

Tariff May Apply
Please adjust quantity to Min / Mult value
Datasheet
Mfr: SMCJ18A
TTI: SMCJ18A
Littelfuse
Availability:

6,000In Stock

18,000 On Order
Expected 01-Jun-27
ESD Protection Diodes / TVS Diodes 1.5kW 18V 5% Uni-Directional

6,000In Stock

18,000 On Order
Expected 01-Jun-27
Tariff May Apply
Please adjust quantity to Min / Mult value
Datasheet
Mfr: 1.5KE30CA
TTI: 1.5KE30CA
Littelfuse
Availability:

10,800In Stock

ESD Protection Diodes / TVS Diodes 1500W 25.6V Bi-Directional

10,800In Stock

Tariff May Apply
Please adjust quantity to Min / Mult value
Datasheet
Mfr: SMBJ6.5A
TTI: SMBJ6.5A
Littelfuse
Availability:

3,000In Stock

9,000 On Order
Expected 16-Apr-27
ESD Protection Diodes / TVS Diodes 600W 6.5V 5% Uni-Directional

3,000In Stock

9,000 On Order
Expected 16-Apr-27
Tariff May Apply
Please adjust quantity to Min / Mult value
Datasheet
Mfr: 03455LS7H
TTI: 03455LS7H
Littelfuse
Availability:

530In Stock

1,000 On Order
Expected 09-Apr-27
Fuse Holder Shock Safe 5x20mm

530In Stock

1,000 On Order
Expected 09-Apr-27
Please adjust quantity to Min / Mult value
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Incoming Inventory

Mfr
TTI
Stock Can ship immediately
On Order
Additional Stock Lead Time Weeks

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RoHS/Lead

RoHS Compliance

RoHS Compliant

Hazardous material content for substances listed in the RoHS Directive are within the limits defined in EU Directive 2011/65/EC and relevant amendments.

RoHS Non-Compliant

Hazardous material content for substances listed in RoHS directive exceed the allowable limits defined in the EU Directive 2011/65/EC and relevant amendments.

RoHS Yes Per Exemption

The part number listed has an allowable exemption as defined in the EU Directive 2011/65/EC and relevant amendments,2002/525/EC

RoHS Compliance: In Transition

In Transition This means that our inventory of this part number is presently not RoHS Compliant, however, the manufacturer will be shipping RoHS: Compliant to TTI in the future. This occurs when the manufacturer has decided not to change their part number to indicate RoHS Compliance. Contact TTI to determine the date that the RoHS: Compliant version of this product will be available.

Call to Verify

The part number is still in transition or TTI needs to contact the factory for the current status. Call TTI for help at .

Lead (Pb)

Lead Free

Pb Free

The Pb content of the termination material contains less than .1% by weight as referenced in JEDEC JESD97, paragraph 3.5 . Reference document is EU Commission Decision2002/525/EC, Annex II Notes- from ELV Directive2000/53/EC.

Contains Lead

Contains Pb

The Pb content of the termination material contains > .1% Pb by weight as referenced in JEDEC JESD97, paragraph 3.5. Reference document is EU Commission Decision2002/525/EC, Annex II Notes- from ELV Directive2000/53/EC.

Call to Verify

The part number is still in transition or TTI needs to contact the factory for the current status. Call TTI for help at .

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