Transient Voltage Suppressor (TVS) Diodes

Littelfuse TVS (Transient Voltage Suppression) Diodes are a broad range of circuit protection products designed to protect electronic circuits against transients and overvoltage threats such as EFT (electrically fast transients) and ESD (electro-static discharge). Lightning strikes, inductive load switching, and ESD cause electrical over-stresses associated with the transmission on data lines and electronic circuits. Offered in a variety of surface mount and through-hole circuit board mounting formats, the TVS Diode portfolio includes high peak pulse current and peak pulse power options up to 20kA and 30kW, respectively. Littelfuse TVS Diodes are chosen for the fast response time (low clamping voltage), lower capacitance, and low leakage current. TVS Diodes are available in both unidirectional (unipolar) or bidirectional (bipolar) diodes circuit configurations. 

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Description Datasheet Availability Pricing (CAD) Filter the results in the table by unit price based on your quantity.
Qty. RoHS ECAD Model Polarity
Number of Channels
Working Voltage
Termination Style
Clamping Voltage
Breakdown Voltage
Package / Case
Ipp - Peak Pulse Current
Pppm - Peak Pulse Power Dissipation
Cd - Diode Capacitance
Vesd - Voltage ESD Contact
Vesd - Voltage ESD Air Gap
Minimum Operating Temperature
Maximum Operating Temperature
Series
Qualification
Packaging
Littelfuse ESD Protection Diodes / TVS Diodes 256V 400W 5% Uni-directional
Datasheet
866In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5,000

Unidirectional 1 Channel 256 V SMD/SMT 414 V 285 V SMA (DO-214AC) 1 A 400 W 30 kV 30 kV - 65 C + 150 C P4SMA Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes 256V 400W 5% Bi-directional
Datasheet
6,400In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5,000

Bidirectional 1 Channel 256 V SMD/SMT 414 V 285 V SMA (DO-214AC) 1.5 A 600 W 30 kV 30 kV - 65 C + 150 C P4SMA Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes 28.2V 400W 5% Uni-directional
Datasheet
1,899In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5,000

Unidirectional 1 Channel 28.2 V SMD/SMT 45.7 V 31.4 V SMA (DO-214AC) 9 A 400 W 30 kV 30 kV - 65 C + 150 C P4SMA Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes 300V 400W 5% Uni-directional
Datasheet
2,701In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5,000

Unidirectional 1 Channel 300 V SMD/SMT 482 V 332 V SMA (DO-214AC) 1.3 A 600 W 30 kV 30 kV - 65 C + 150 C P4SMA Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes 300V 400W 5% Bi-directional
Datasheet
3,244In Stock
5,000Expected 2026-05-05
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5,000

Bidirectional 1 Channel 300 V SMD/SMT 482 V 332 V SMA (DO-214AC) 1.3 A 600 W 30 kV 30 kV - 65 C + 150 C P4SMA Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes 30.8V 400W 5% Uni-directional
Datasheet
5,125In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5,000

Unidirectional 1 Channel 30.8 V SMD/SMT 49.9 V 34.2 V SMA (DO-214AC) 8.2 A 400 W 30 kV 30 kV - 65 C + 150 C P4SMA Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes 30.8V 400W 5% Bi-directional
Datasheet
6,432In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5,000

Bidirectional 1 Channel 30.8 V SMD/SMT 49.9 V 34.2 V SMA (DO-214AC) 8.2 A 400 W 30 kV 30 kV - 65 C + 150 C P4SMA Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes 33.3V 400W 5% Bi-directional
Datasheet
4,321In Stock
5,000Expected 2026-05-12
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5,000

Bidirectional 1 Channel 33.3 V SMD/SMT 53.9 V 37.1 V SMA (DO-214AC) 7.6 A 400 W 30 kV 30 kV - 65 C + 150 C P4SMA Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes 342V 400W 5% Bi-directional
Datasheet
4,929In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5,000

Bidirectional 1 Channel 342 V SMD/SMT 548 V 380 V SMA (DO-214AC) 1.1 A 600 W 30 kV 30 kV - 65 C + 150 C P4SMA Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes 36.8V 400W 5% Uni-directional
Datasheet
6,587In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5,000

Unidirectional 1 Channel 36.8 V SMD/SMT 59.3 V 40.9 V SMA (DO-214AC) 6.9 A 400 W 30 kV 30 kV - 65 C + 150 C P4SMA Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes 36.8V 400W 5% Bi-directional
Datasheet
3,806In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5,000

Bidirectional 1 Channel 36.8 V SMD/SMT 59.3 V 40.9 V SMA (DO-214AC) 6.9 A 400 W 30 kV 30 kV - 65 C + 150 C P4SMA Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes 376V 400W 5% Uni-directional
Datasheet
4,051In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5,000

Unidirectional 1 Channel 376 V SMD/SMT 602 V 418 V SMA (DO-214AC) 1 A 600 W 30 kV 30 kV - 65 C + 150 C P4SMA Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes 40.2V 400W 5% Bi-directional
Datasheet
7,234In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5,000

Bidirectional 1 Channel 40.2 V SMD/SMT 64.8 V 44.7 V SMA (DO-214AC) 6.3 A 400 W 30 kV 30 kV - 65 C + 150 C P4SMA Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes 408V 400W 5% Uni-directional
Datasheet
5,061In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5,000

Unidirectional 1 Channel 408 V SMD/SMT 658 V 456 V SMA (DO-214AC) 1 A 600 W 30 kV 30 kV - 65 C + 150 C P4SMA Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes 408V 400W 5% Bi-directional
Datasheet
4,815In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5,000

Bidirectional 408 V SMD/SMT 658 V 504 V SMA (DO-214AC) 600 mA 400 W - 65 C + 150 C P4SMA Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes 434V 400W 5% Uni-directional
Datasheet
2,262In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5,000

Unidirectional 1 Channel 434 V SMD/SMT 698 V 485 V SMA (DO-214AC) 900 mA 600 W 30 kV 30 kV - 65 C + 150 C P4SMA Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes 43.6V 400W 5% Uni-directional
Datasheet
4,619In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5,000

Unidirectional 1 Channel 43.6 V SMD/SMT 70.1 V 48.5 V SMA (DO-214AC) 5.8 A 400 W 30 kV 30 kV - 65 C + 150 C P4SMA Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes 477V 400W 5% Uni-directional
Datasheet
3,679In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5,000

Unidirectional 1 Channel 451 V SMD/SMT 725 V 503.5 V SMA (DO-214AC) 900 mA 600 W 30 kV 30 kV - 65 C + 150 C P4SMA Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes 495V 400W 5% Uni-directional
Datasheet
4,293In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5,000

Unidirectional 1 Channel 468 V SMD/SMT 760 V 522.5 V SMA (DO-214AC) 800 mA 600 W 30 kV 30 kV - 65 C + 150 C P4SMA Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes 47.8V 400W 5% Bi-directional
Datasheet
6,987In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5,000

Bidirectional 1 Channel 47.8 V SMD/SMT 77 V 53.2 V SMA (DO-214AC) 5.3 A 400 W 30 kV 30 kV - 65 C + 150 C P4SMA Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes 6.8V 400W 5% Uni-directional
Datasheet
11,788In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5,000

Unidirectional 1 Channel 6.8 V SMD/SMT 10.5 V 6.45 V SMA (DO-214AC) 39 A 400 W 30 kV 30 kV - 65 C + 150 C P4SMA Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes 5.8V 400W 5% Bi-directional
Datasheet
5,371In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5,000

Bidirectional 1 Channel 5.8 V SMD/SMT 10.5 V 6.45 V SMA (DO-214AC) 39 A 400 W 30 kV 30 kV - 65 C + 150 C P4SMA Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes 58.1V 400W 5% Uni-directional
Datasheet
8,157In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5,000

Unidirectional 1 Channel 58.1 V SMD/SMT 92 V 64.6 V SMA (DO-214AC) 4.5 A 400 W 30 kV 30 kV - 65 C + 150 C P4SMA Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes 58.1V 400W 5% Bi-directional
Datasheet
4,850In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5,000

Bidirectional 1 Channel 58.1 V SMD/SMT 92 V 64.6 V SMA (DO-214AC) 4.5 A 400 W 30 kV 30 kV - 65 C + 150 C P4SMA Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes 6.4V 400W 5% Bi-directional
Datasheet
5,447In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5,000

Bidirectional 1 Channel 6.4 V SMD/SMT 11.3 V 7.13 V SMA (DO-214AC) 36.3 A 400 W 30 kV 30 kV - 65 C + 150 C P4SMA Reel, Cut Tape, MouseReel