.hide-partial { max-height: none; } .show-more { display: none; }

Littelfuse Circuit Protection

.catnav-wrapper { height: auto; overflow: visible; } .catalog-nav-tabs ul { white-space: normal; }

Types of Circuit Protection

List Images

Results: 34,046

Applied Filters:

Manufacturer = Littelfuse

Reset All

Search within results

In Stock

Normally Stocked

Active

New Products

RoHS Compliant

.search-refine-wrapper { display: inline-block; min-width: 100%; } .scroll-body { overflow-x: visible; } .search-table-wrapper { overflow: visible; } .hide-partial { max-height: none; } .show-more { display: none; }

Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.
ESD Protection Diodes / TVS Diodes TVS 6KA RATED 450V BI AXIAL AK8-450C-FB Littelfuse 1: $138.28 4In Stock 56Expected 2026/12/15 New Product	Mfr. Part No. AK8-450C-FB Mouser Part No 576-AK8-450C-FB New Product	Littelfuse	ESD Protection Diodes / TVS Diodes TVS 6KA RATED 450V BI AXIAL Learn More about Littelfuse ak8 fb tvs diodes	Datasheet	4In Stock 56Expected 2026/12/15	$138.28 $122.70	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes TVS AXIAL KA RATED - 3KA 430V BI AK3-430C-A Littelfuse 1: $97.62 4In Stock 56Expected 2026/12/15 New Product	Mfr. Part No. AK3-430C-A Mouser Part No 576-AK3-430C-A New Product	Littelfuse	ESD Protection Diodes / TVS Diodes TVS AXIAL KA RATED - 3KA 430V BI Learn More about Littelfuse ak3 a tvs diodes	Datasheet	4In Stock 56Expected 2026/12/15	$97.62 $86.62 $85.74	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes TVS 5KW 18V 5%UNI DO-214AB TR13 RoHS Littelfuse 5.0SMDJ18A-E 5.0SMDJ18A-E Littelfuse 1: $2.80 3,000In Stock New Product	Mfr. Part No. 5.0SMDJ18A-E Mouser Part No 576-5.0SMDJ18AE New Product	Littelfuse	ESD Protection Diodes / TVS Diodes TVS 5KW 18V 5%UNI DO-214AB TR13 RoHS	Datasheet	3,000In Stock	Cut Tape $2.80 $1.80 $1.47 $1.23 $1.00 Reel $0.85	Min.: 1 Mult.: 1 : 3,000
Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL DIN 315A ESR3XLDB0315XI Littelfuse 1: $579.85 3In Stock New Product	Mfr. Part No. ESR3XLDB0315XI Mouser Part No 576-ESR3XLDB0315XI New Product	Littelfuse	Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL DIN 315A Learn More about Littelfuse esr high speed square body fuses	Datasheet	3In Stock	$579.85 $476.12 $433.26	Min.: 1 Mult.: 1
Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL BOLT 400A ESR3XLUB0400XI Littelfuse 1: $596.50 3In Stock New Product	Mfr. Part No. ESR3XLUB0400XI Mouser Part No 576-ESR3XLUB0400XI New Product	Littelfuse	Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL BOLT 400A Learn More about Littelfuse esr high speed square body fuses	Datasheet	3In Stock	$596.50 $489.80 $445.84 Quote Quote	Min.: 1 Mult.: 1
Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL BOLT 500A ESR3XLUB0500XI Littelfuse 1: $608.61 3In Stock New Product	Mfr. Part No. ESR3XLUB0500XI Mouser Part No 576-ESR3XLUB0500XI New Product	Littelfuse	Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL BOLT 500A Learn More about Littelfuse esr high speed square body fuses	Datasheet	3In Stock	$608.61 $518.02 $464.37	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes "20 V, 50pF, 5A," SP1120-01WTG Littelfuse 1: $0.59 8,583In Stock New Product	Mfr. Part No. SP1120-01WTG Mouser Part No 576-SP1120-01WTG New Product	Littelfuse	ESD Protection Diodes / TVS Diodes "20 V, 50pF, 5A," Learn More about Littelfuse sp1120 01wtg tvs diodes		8,583In Stock	Cut Tape $0.59 $0.263 $0.231 $0.174 View Reel $0.098 $0.17 $0.159 $0.157 $0.098	Min.: 1 Mult.: 1 : 10,000
ESD Protection Diodes / TVS Diodes 18 V, 0.6 pF, 10 kV AQ3118-02JTG Littelfuse 1: $1.34 1,948In Stock New Product	Mfr. Part No. AQ3118-02JTG Mouser Part No 576-AQ3118-02JTG New Product	Littelfuse	ESD Protection Diodes / TVS Diodes 18 V, 0.6 pF, 10 kV Learn More about Littelfuse aq3118 02jtg tvs diode array	Datasheet	1,948In Stock	Cut Tape $1.34 $0.84 $0.55 $0.426 $0.361 Reel $0.30 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes TVS 10KA RATED 550V BI AXIAL AK10-550C-FL Littelfuse 1: $170.82 1In Stock 56Expected 2026/12/09 New Product	Mfr. Part No. AK10-550C-FL Mouser Part No 576-AK10-550C-FL New Product	Littelfuse	ESD Protection Diodes / TVS Diodes TVS 10KA RATED 550V BI AXIAL Learn More about Littelfuse ak fl tvs diodes	Datasheet	1In Stock 56Expected 2026/12/09	$170.82 $151.56	Min.: 1 Mult.: 1
Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL BOLT 315A ESR3XLUB0315XI Littelfuse 1: $584.57 2In Stock 1Expected 2026/11/16 New Product	Mfr. Part No. ESR3XLUB0315XI Mouser Part No 576-ESR3XLUB0315XI New Product	Littelfuse	Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL BOLT 315A Learn More about Littelfuse esr high speed square body fuses	Datasheet	2In Stock 1Expected 2026/11/16	$584.57 $479.99 $436.80	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 30V, 100A ,DNF2020-6L SC3000-01UTG Littelfuse 1: $1.85 3,000In Stock New Product	Mfr. Part No. SC3000-01UTG Mouser Part No 576-SC3000-01UTG New Product	Littelfuse	ESD Protection Diodes / TVS Diodes 30V, 100A ,DNF2020-6L Learn More about Littelfuse tvs spa diode arrays	Datasheet	3,000In Stock	Cut Tape $1.85 $1.16 $0.761 $0.587 Reel $0.473 View $0.498 $0.435 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes 5V, 6A, SOD882 SC1003-01ETG Littelfuse 1: $0.79 10,010In Stock New Product	Mfr. Part No. SC1003-01ETG Mouser Part No 576-SC1003-01ETG New Product	Littelfuse	ESD Protection Diodes / TVS Diodes 5V, 6A, SOD882 Learn More about Littelfuse tvs spa diode arrays	Datasheet	10,010In Stock	Cut Tape $0.79 $0.497 $0.317 $0.237 Reel $0.138 View $0.192 $0.165 $0.163 $0.13 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL BOLT 250A ESR3XLUB0250XI Littelfuse 1: $522.51 3In Stock New Product	Mfr. Part No. ESR3XLUB0250XI Mouser Part No 576-ESR3XLUB0250XI New Product	Littelfuse	Industrial & Electrical Fuses Specialty Fuses POWR-SPEED SQB ESR 1500VDC 3XL BOLT 250A Learn More about Littelfuse esr high speed square body fuses	Datasheet	3In Stock	$522.51 $429.04 $390.43	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes 7V & 12V 75pF 20A SOT23-3L SC712-02HTG Littelfuse 1: $1.40 2,236In Stock 100Expected 2026/11/17 New Product	Mfr. Part No. SC712-02HTG Mouser Part No 576-SC712-02HTG New Product	Littelfuse	ESD Protection Diodes / TVS Diodes 7V & 12V 75pF 20A SOT23-3L Learn More about Littelfuse tvs spa diode arrays	Datasheet	2,236In Stock 100Expected 2026/11/17	Cut Tape $1.40 $0.88 $0.576 $0.445 Reel $0.359 View $0.378 $0.326 $0.315 MouseReel Available	Min.: 1 Mult.: 1 : 3,000
ESD Protection Diodes / TVS Diodes TVS SURF MT DO214AA - SMBJ33A 3K T&R Littelfuse SMBJ33A-E SMBJ33A-E Littelfuse 1: $0.57 2,076In Stock New Product	Mfr. Part No. SMBJ33A-E Mouser Part No 576-SMBJ33AE New Product	Littelfuse	ESD Protection Diodes / TVS Diodes TVS SURF MT DO214AA - SMBJ33A 3K T&R	Datasheet	2,076In Stock	Cut Tape $0.57 $0.269 $0.227 $0.169 Reel $0.091 View $0.152 $0.09 $0.079 $0.076	Min.: 1 Mult.: 1 : 3,000
Automotive Fuses FUSE - ZCASE MEGA 32V M10 80A 480 PC 3298080.ZXM10 Littelfuse 1: $12.07 291In Stock New Product	Mfr. Part No. 3298080.ZXM10 Mouser Part No 576-3298080.ZXM10 New Product	Littelfuse	Automotive Fuses FUSE - ZCASE MEGA 32V M10 80A 480 PC	Datasheet	291In Stock	$12.07 $11.65 $11.22 $8.63 View $7.33 $6.90 $6.16	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes TVS Hi-Power Diode 20KPA300CA Littelfuse 1: $20.12 4,178In Stock	Mfr. Part No. 20KPA300CA Mouser Part No 576-20KPA300CA	Littelfuse	ESD Protection Diodes / TVS Diodes TVS Hi-Power Diode Learn More about Littelfuse tvsdiodes	Datasheet	4,178In Stock	Cut Tape $20.12 $16.34 $15.98 Reel $15.98	Min.: 1 Mult.: 1 : 800
ESD Protection Diodes / TVS Diodes TVS Hi Power Diode 30KPA Axial 30KPA48CA Littelfuse 1: $24.47 2,598In Stock	Mfr. Part No. 30KPA48CA Mouser Part No 576-30KPA48CA	Littelfuse	ESD Protection Diodes / TVS Diodes TVS Hi Power Diode 30KPA Axial Learn More about Littelfuse tvsdiodes	Datasheet	2,598In Stock	Cut Tape $24.47 $17.90 $16.48 $16.46 $16.04 Reel $16.04	Min.: 1 Mult.: 1 : 800
ESD Protection Diodes / TVS Diodes TVS Hi Power Diode 30KPA Axial 30KPA260CA Littelfuse 1: $31.81 727In Stock	Mfr. Part No. 30KPA260CA Mouser Part No 576-30KPA260CA	Littelfuse	ESD Protection Diodes / TVS Diodes TVS Hi Power Diode 30KPA Axial Learn More about Littelfuse tvsdiodes	Datasheet	727In Stock	Cut Tape $31.81 $25.18 $23.26 Reel $23.26	Min.: 1 Mult.: 1 : 800
ESD Protection Diodes / TVS Diodes TVS SMTO HI-POWER 36A 5mA 2uA SM8S36A Littelfuse 1: $4.15 1,184In Stock	Mfr. Part No. SM8S36A Mouser Part No 576-SM8S36A	Littelfuse	ESD Protection Diodes / TVS Diodes TVS SMTO HI-POWER 36A 5mA 2uA Learn More about Littelfuse sm8s tvs diodes	Datasheet	1,184In Stock	Cut Tape $4.15 $2.72 $2.28 $1.97 Reel $1.52 $1.43 MouseReel Available	Min.: 1 Mult.: 1 : 500
Triacs 16 Amp Standard High Temperature Alternistor TRIAC-TO263 QJ6016NH5RP Littelfuse 1: $5.95 683In Stock	Mfr. Part No. QJ6016NH5RP Mouser Part No 576-QJ6016NH5RP	Littelfuse	Triacs 16 Amp Standard High Temperature Alternistor TRIAC-TO263 Learn More about Littelfuse qjxx16xhx alternistor triacs	Datasheet	683In Stock	Cut Tape $5.95 $3.93 $2.86 Reel $2.45 $2.13 MouseReel Available	Min.: 1 Mult.: 1 : 500
ESD Protection Diodes / TVS Diodes 5V 3A 15kV WLCSP0201 Bi-dir TVS SP4338-02WTG Littelfuse 1: $0.74 60,258In Stock	Mfr. Part No. SP4338-02WTG Mouser Part No 576-SP4338-02WTG	Littelfuse	ESD Protection Diodes / TVS Diodes 5V 3A 15kV WLCSP0201 Bi-dir TVS Learn More about Littelfuse sp4338 02wtg tvs	Datasheet	60,258In Stock	Cut Tape $0.74 $0.334 $0.294 $0.223 View Reel $0.122 $0.204 $0.20 $0.122 MouseReel Available	Min.: 1 Mult.: 1 : 10,000
ESD Protection Diodes / TVS Diodes TVS Hi Power Diode 30KPA Axial 30KPA75A Littelfuse 1: $22.99 1,110In Stock	Mfr. Part No. 30KPA75A Mouser Part No 576-30KPA75A	Littelfuse	ESD Protection Diodes / TVS Diodes TVS Hi Power Diode 30KPA Axial Learn More about Littelfuse tvsdiodes	Datasheet	1,110In Stock	Cut Tape $22.99 $16.54 $14.98 $14.60 Reel $14.60	Min.: 1 Mult.: 1 : 800
Triacs 400V 10A 50-50-50mA Q4010L5TP Littelfuse 1: $3.44 11,031In Stock	Mfr. Part No. Q4010L5TP Mouser Part No 576-Q4010L5TP	Littelfuse	Triacs 400V 10A 50-50-50mA Learn More about Littelfuse qxx10 triacs	Datasheet	11,031In Stock	$3.44 $1.76 $1.60	Min.: 1 Mult.: 1
ESD Protection Diodes / TVS Diodes TVS Hi Power Diode 30KPA Axial 30KPA270CA Littelfuse 1: $31.81 761In Stock	Mfr. Part No. 30KPA270CA Mouser Part No 576-30KPA270CA	Littelfuse	ESD Protection Diodes / TVS Diodes TVS Hi Power Diode 30KPA Axial Learn More about Littelfuse tvsdiodes	Datasheet	761In Stock	Cut Tape $31.81 $25.18 $24.39 Reel $24.39	Min.: 1 Mult.: 1 : 800

Littelfuse Circuit Protection

Types of Circuit Protection

Applied Filters:

Customer Service Office

Company

Resources

Support