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 (GBP) 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
Series
Qualification
Packaging
Littelfuse ESD Protection Diodes / TVS Diodes 400W 16V 5% Uni-directional
Datasheet
32,327In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Unidirectional 1 Channel 16 V SMD/SMT 26 V 17.8 V SOD-123-2 15.4 A 400 W 30 kV 30 kV - 55 C + 150 C SMF4L Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes 400W 64V 5% Uni-directional
Datasheet
37,783In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000
Unidirectional 1 Channel 64 V SMD/SMT 103 V 71.1 V SOD-123-2 3.9 A 400 W 30 kV 30 kV - 55 C + 150 C SMF4L AEC-Q100 Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes SMF4L - A 160V
Datasheet
2,621In Stock
Min.: 1
Mult.: 1
: 3,000
Unidirectional 1 Channel 160 V SMD/SMT 259 V 178 V SOD-123-2 800 mA 400 W 30 kV 30 kV - 55 C + 150 C SMF4L Reel, Cut Tape
Littelfuse ESD Protection Diodes / TVS Diodes SMF4L - A 110V
Datasheet
2,980In Stock
Min.: 1
Mult.: 1
: 3,000
Unidirectional 1 Channel 110 V SMD/SMT 177 V 122 V SOD-123-2 1.1 A 400 W 30 kV 30 kV - 55 C + 150 C SMF4L Reel, Cut Tape
Littelfuse ESD Protection Diodes / TVS Diodes SMF4L - A 180V
Datasheet
2,690In Stock
Min.: 1
Mult.: 1
: 3,000
Unidirectional 1 Channel 180 V SMD/SMT 292 V 201 V SOD-123-2 700 mA 400 W 30 kV 30 kV - 55 C + 150 C SMF4L Reel, Cut Tape
Littelfuse ESD Protection Diodes / TVS Diodes SMF4L - CA 11V
Datasheet
18,425In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Bidirectional 1 Channel 11 V SMD/SMT 18.2 V 12.2 V SOD-123-2 22 A 400 W 30 kV 30 kV - 55 C + 150 C SMF4L Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes 400W 24V 5% Uni-directional
Datasheet
27,229In Stock
18,000Expected 20/08/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Unidirectional 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 SMF4L Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes 400W 33V 5% Uni-directional
Datasheet
16,947In Stock
42,000Expected 13/08/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Unidirectional 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 SMF4L Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes 400W 48V 5% Uni-directional
Datasheet
24,878In Stock
18,000Expected 08/09/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Unidirectional 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 SMF4L Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes 400W 5V 5% Uni-directional
Datasheet
29,872In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000
Unidirectional 1 Channel 5 V SMD/SMT 9.2 V 6.4 V SOD-123-2 40.1 A 400 W 30 kV 30 kV - 55 C + 150 C SMF4L AEC-Q100 Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes SMF4L - CA 51V
Datasheet
36,460In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Bidirectional 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 SMF4L Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes SMF4L - A 100V
Datasheet
9,766In Stock
Min.: 1
Mult.: 1
: 3,000
Unidirectional 1 Channel 100 V SMD/SMT 162 V 111 V SOD-123-2 1.2 A 400 W 30 kV 30 kV - 55 C + 150 C SMF4L Reel, Cut Tape
Littelfuse ESD Protection Diodes / TVS Diodes 400W 10V 5% Uni-directional
Datasheet
5,450In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Unidirectional 1 Channel 10 V SMD/SMT 17 V 11.1 V SOD-123-2 23.5 A 400 W 30 kV 30 kV - 55 C + 150 C SMF4L AEC-Q100 Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes SMF4L - CA 10V
Datasheet
5,448In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Bidirectional 1 Channel 10 V SMD/SMT 17 V 11.1 V SOD-123-2 23.5 A 400 W 30 kV 30 kV - 55 C + 150 C SMF4L Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes 400W 12V 5% Uni-directional
Datasheet
3,971In Stock
3,000Expected 23/12/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Unidirectional 1 Channel 12 V SMD/SMT 19.9 V 13.3 V SOD-123-2 20.1 A 400 W 30 kV 30 kV - 55 C + 150 C SMF4L Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes SMF4L - CA 12V
Datasheet
30In Stock
27,000Expected 16/11/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Bidirectional 1 Channel 12 V SMD/SMT 19.9 V 13.3 V SOD-123-2 20.1 A 400 W 30 kV 30 kV - 55 C + 150 C SMF4L Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes 400W 13V 5% Uni-directional
Datasheet
546In Stock
12,000Expected 26/11/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Unidirectional 1 Channel 13 V SMD/SMT 21.5 V 14.4 V SOD-123-2 18.6 A 400 W 30 kV 30 kV - 55 C + 150 C SMF4L Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes SMF4L - CA 13V
Datasheet
2,179In Stock
3,000Expected 22/12/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Bidirectional 1 Channel 13 V SMD/SMT 21.5 V 14.4 V SOD-123-2 18.6 A 400 W 30 kV 30 kV - 55 C + 150 C SMF4L Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes 400W 14V 5% Uni-directional
Datasheet
550In Stock
3,000Expected 20/08/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Unidirectional 1 Channel 14 V SMD/SMT 23.2 V 15.6 V SOD-123-2 17.2 A 400 W 30 kV 30 kV - 55 C + 150 C SMF4L Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes 400W 15V 5% Uni-directional
Datasheet
3,693In Stock
6,000Expected 12/10/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Unidirectional 1 Channel 15 V SMD/SMT 24.4 V 16.7 V SOD-123-2 16.4 A 400 W 30 kV 30 kV - 55 C + 150 C SMF4L Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes SMF4L - CA 15V
Datasheet
1,236In Stock
18,000On Order
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Bidirectional 1 Channel 15 V SMD/SMT 24.4 V 16.7 V SOD-123-2 16.4 A 400 W 30 kV 30 kV - 55 C + 150 C SMF4L Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes SMF4L - CA 16V
Datasheet
6,167In Stock
6,000Expected 20/08/2026
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Bidirectional 1 Channel 16 V SMD/SMT 26 V 17.8 V SOD-123-2 15.4 A 400 W 30 kV 30 kV - 55 C + 150 C SMF4L Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes SMF4L - CA 17V
Datasheet
773In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Bidirectional 1 Channel 17 V SMD/SMT 27.6 V 18.9 V SOD-123-2 14.5 A 400 W 30 kV 30 kV - 55 C + 150 C SMF4L Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes 400W 18V 5% Uni-directional
Datasheet
3,398In Stock
MouseReel Available
Min.: 1
Mult.: 1
: 3,000

Unidirectional 1 Channel 18 V SMD/SMT 29.2 V 20 V SOD-123-2 13.7 A 400 W 30 kV 30 kV - 55 C + 150 C SMF4L Reel, Cut Tape, MouseReel
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 SMF4L Reel, Cut Tape, MouseReel