SMF4L 400W Surface Mount Diodes

Littelfuse SMF4L 400W Surface Mount Diodes consist of a SOD-123FL small and flat lead low-profile package designed to protect sensitive electronic equipment from voltage transients induced by lightning and other transient voltage events. The SMF4L features 400W peak pulse power capability at 10/1000µs waveform with a repetition rate (duty cycle) of 0.1%. The diodes are compatible with industrial standard package SOD-123FL and offer a low inductance with excellent clamping capability in a low profile package of 0.98 maximum height.

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Description Datasheet Availability Pricing (TWD) 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
Vesd - Voltage ESD Contact
Vesd - Voltage ESD Air Gap
Minimum Operating Temperature
Maximum Operating Temperature
Product
Series
Qualification
Packaging
Littelfuse ESD Protection Diodes / TVS Diodes 400W 20V 5% Uni-directional
Datasheet
3,640In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Unidirectional 1 Channel 20 V SMD/SMT 32.4 V 22.2 V SOD-123-2 12.3 A 400 W 30 kV 30 kV - 55 C + 150 C TVS Diodes SMF4L Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes SMF4L - CA 20V
Datasheet
11,082In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Bidirectional 1 Channel 20 V SMD/SMT 32.4 V 22.2 V SOD-123-2 12.3 A 400 W 30 kV 30 kV - 55 C + 150 C TVS Diodes SMF4L Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes SMF4L - CA 22V
Datasheet
5,840In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Bidirectional 1 Channel 22 V SMD/SMT 35.5 V 24.4 V SOD-123-2 11.3 A 400 W 30 kV 30 kV - 55 C + 150 C TVS Diodes SMF4L Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes SMF4L - CA 24V
Datasheet
2,835In Stock
15,000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Bidirectional 1 Channel 24 V SMD/SMT 38.9 V 26.7 V SOD-123-2 10.3 A 400 W 30 kV 30 kV - 55 C + 150 C TVS Diodes SMF4L Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes SMF4L - CA 26V
Datasheet
2,123In Stock
3,000Expected 9/3/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Bidirectional 1 Channel 26 V SMD/SMT 42.1 V 28.9 V SOD-123-2 9.5 A 400 W 30 kV 30 kV - 55 C + 150 C TVS Diodes SMF4L Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes 400W 28V 5% Uni-directional
Datasheet
3,101In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Unidirectional 1 Channel 28 V SMD/SMT 45.4 V 31.1 V SOD-123-2 8.8 A 400 W 30 kV 30 kV - 55 C + 150 C TVS Diodes SMF4L Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes 400W 30V 5% Uni-directional
Datasheet
5,354In Stock
3,000Expected 12/28/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3,000
Unidirectional 1 Channel 30 V SMD/SMT 48.4 V 33.3 V SOD-123-2 8.3 A 400 W 30 kV 30 kV - 55 C + 150 C TVS Diodes SMF4L Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes SMF4L - CA 33V
Datasheet
9,086In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Bidirectional 1 Channel 33 V SMD/SMT 53.3 V 36.7 V SOD-123-2 7.5 A 400 W 30 kV 30 kV - 55 C + 150 C TVS Diodes SMF4L Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes 400W 36V 5% Uni-directional
Datasheet
13,566In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Unidirectional 1 Channel 36 V SMD/SMT 58.1 V 40 V SOD-123-2 6.9 A 400 W 30 kV 30 kV - 55 C + 150 C TVS Diodes SMF4L Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes SMF4L - CA 36V
Datasheet
2,076In Stock
27,000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Bidirectional 1 Channel 36 V SMD/SMT 58.1 V 40 V SOD-123-2 6.9 A 400 W 30 kV 30 kV - 55 C + 150 C TVS Diodes SMF4L Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes 400W 40V 5% Uni-directional
Datasheet
4,942In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000
Unidirectional 1 Channel 40 V SMD/SMT 64.5 V 44.4 V SOD-123-2 6.2 A 400 W 30 kV 30 kV - 55 C + 150 C TVS Diodes SMF4L Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes SMF4L - CA 40V
Datasheet
5,015In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Bidirectional 1 Channel 40 V SMD/SMT 64.5 V 44.4 V SOD-123-2 6.2 A 400 W 30 kV 30 kV - 55 C + 150 C TVS Diodes SMF4L Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes 400W 43V 5% Uni-directional
Datasheet
3,071In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Unidirectional 1 Channel 43 V SMD/SMT 69.4 V 47.8 V SOD-123-2 5.8 A 400 W 30 kV 30 kV - 55 C + 150 C TVS Diodes SMF4L Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes SMF4L - CA 45V
Datasheet
2,470In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Bidirectional 1 Channel 45 V SMD/SMT 72.7 V 50 V SOD-123-2 5.5 A 400 W 30 kV 30 kV - 55 C + 150 C TVS Diodes SMF4L Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes SMF4L - CA 48V
Datasheet
11,597In Stock
48,000Expected 8/27/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Bidirectional 1 Channel 48 V SMD/SMT 77.4 V 53.3 V SOD-123-2 5.2 A 400 W 30 kV 30 kV - 55 C + 150 C TVS Diodes SMF4L Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes 400W 51V 5% Uni-directional
Datasheet
4,103In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Unidirectional 1 Channel 51 V SMD/SMT 82.4 V 56.7 V SOD-123-2 4.9 A 400 W 30 kV 30 kV - 55 C + 150 C TVS Diodes SMF4L Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes 400W 54V 5% Uni-directional
Datasheet
5,655In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000
Unidirectional 1 Channel 54 V SMD/SMT 87.1 V 60 V SOD-123-2 4.6 A 400 W 30 kV 30 kV - 55 C + 150 C TVS Diodes SMF4L Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes 400W 58V 5% Uni-directional
Datasheet
3,789In Stock
3,000Expected 12/30/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Unidirectional 1 Channel 58 V SMD/SMT 93.6 V 64.4 V SOD-123-2 4.3 A 400 W 30 kV 30 kV - 55 C + 150 C TVS Diodes SMF4L Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes 400W 6V 5% Uni-directional
Datasheet
10,831In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Unidirectional 1 Channel 6 V SMD/SMT 10.3 V 6.67 V SOD-123-2 35.9 A 400 W 30 kV 30 kV - 55 C + 150 C TVS Diodes SMF4L AEC-Q100 Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes 400W 60V 5% Uni-directional
Datasheet
13,902In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000
Unidirectional 1 Channel 60 V SMD/SMT 96.8 V 66.7 V SOD-123-2 4.1 A 400 W 30 kV 30 kV - 55 C + 150 C TVS Diodes SMF4L AEC-Q100 Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes 400W 7V 5% Uni-directional
Datasheet
4,091In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000
Unidirectional 12 V 8.6 V 30.9 A 370 W + 150 C TVS Diodes SMF4L AEC-Q100 Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes 400W 7.5V 5% Uni-directional
Datasheet
100In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Unidirectional 1 Channel 7.5 V SMD/SMT 12.9 V 8.33 V SOD-123-2 28.7 A 400 W 30 kV 30 kV - 55 C + 150 C TVS Diodes SMF4L AEC-Q100 Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes 400W 70V 5% Uni-directional
Datasheet
3,201In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Unidirectional 1 Channel 70 V SMD/SMT 113 V 77.8 V SOD-123-2 3.5 A 400 W 30 kV 30 kV - 55 C + 150 C TVS Diodes SMF4L AEC-Q100 Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes 400W 8V 5% Uni-directional
Datasheet
2,048In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Unidirectional 1 Channel 8 V SMD/SMT 13.6 V 8.89 V SOD-123-2 27.2 A 400 W 30 kV 30 kV - 55 C + 150 C TVS Diodes SMF4L AEC-Q100 Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes 400W 85V 5% Uni-directional
Datasheet
4,465In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Unidirectional 1 Channel 85 V SMD/SMT 137 V 94.4 V SOD-123-2 2.9 A 400 W 30 kV 30 kV - 55 C + 150 C TVS Diodes SMF4L AEC-Q100 Reel, Cut Tape, MouseReel