ESD Protection Diodes / TVS Diodes

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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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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (JPY) Filter the results in the table by unit price based on your quantity.	Qty.	Polarity	Number of Channels	Working Voltage	Termination Style	Clamping Voltage	Breakdown Voltage	Package / Case	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
ESD Protection Diodes / TVS Diodes 400W 8V 5% Uni-directional SMF4L8.0A Littelfuse 1: ¥94.7 768In Stock	Mfr. Part # SMF4L8.0A Mouser Part # 576-SMF4L8.0A	Littelfuse	ESD Protection Diodes / TVS Diodes 400W 8V 5% Uni-directional Learn More about Littelfuse smf4l diodes	Datasheet	768In Stock	Cut Tape ¥94.7 ¥43.7 ¥38.4 ¥28.9 Reel ¥18.1 View ¥24.1 ¥16.3 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
ESD Protection Diodes / TVS Diodes 400W 85V 5% Uni-directional SMF4L85A Littelfuse 1: ¥116.3 135In Stock 3,000Expected 11/11/2026	Mfr. Part # SMF4L85A Mouser Part # 576-SMF4L85A	Littelfuse	ESD Protection Diodes / TVS Diodes 400W 85V 5% Uni-directional Learn More about Littelfuse smf4l diodes	Datasheet	135In Stock 3,000Expected 11/11/2026	Cut Tape ¥116.3 ¥73.3 ¥48.3 ¥34.9 Reel ¥22.1 View ¥28.2 ¥21.3 ¥18.9 ¥17.4 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
ESD Protection Diodes / TVS Diodes 400W 9V 5% Uni-directional SMF4L9.0A Littelfuse 1: ¥98 3,922In Stock	Mfr. Part # SMF4L9.0A Mouser Part # 576-SMF4L9.0A	Littelfuse	ESD Protection Diodes / TVS Diodes 400W 9V 5% Uni-directional Learn More about Littelfuse smf4l diodes	Datasheet	3,922In Stock	Cut Tape ¥98 ¥43.7 ¥38.4 ¥28.9 Reel ¥18.1 View ¥28.2 ¥17.9 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Unidirectional	1 Channel	9 V	SMD/SMT	15.4 V	10 V	SOD-123-2	26.4 A	400 W	30 kV	30 kV	- 55 C	+ 150 C	TVS Diodes	SMF4L	AEC-Q100	Reel, Cut Tape, MouseReel
ESD Protection Diodes / TVS Diodes SMF4L - CA 12V SMF4L12CA Littelfuse 1: ¥112.9 27,000On Order	Mfr. Part # SMF4L12CA Mouser Part # 576-SMF4L12CA	Littelfuse	ESD Protection Diodes / TVS Diodes SMF4L - CA 12V Learn More about Littelfuse smf4l diodes	Datasheet	27,000On Order On Order Ship Dates Mfr. #: SMF4L12CA Stock: 0 On Order: 18,000 Expected 11/25/2026 9,000 Expected 12/1/2026 Factory Lead-Time: 18 Weeks	Cut Tape ¥112.9 ¥50.7 ¥44.5 ¥33.6 Reel ¥21.3 View ¥31.9 ¥18.4 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	TVS Diodes	SMF4L		Reel, Cut Tape, MouseReel
ESD Protection Diodes / TVS Diodes SMF4L - CA 16V SMF4L16CA Littelfuse 1: ¥112.9 18,000On Order	Mfr. Part # SMF4L16CA Mouser Part # 576-SMF4L16CA	Littelfuse	ESD Protection Diodes / TVS Diodes SMF4L - CA 16V Learn More about Littelfuse smf4l diodes	Datasheet	18,000On Order On Order Ship Dates Mfr. #: SMF4L16CA Stock: 0 On Order: 6,000 Expected 12/21/2026 12,000 Expected 2/23/2027 Factory Lead-Time: 18 Weeks	Cut Tape ¥112.9 ¥50.7 ¥44.5 ¥33.6 Reel ¥21.3 ¥18.4 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	TVS Diodes	SMF4L		Reel, Cut Tape, MouseReel
ESD Protection Diodes / TVS Diodes SMF4L - CA 10V SMF4L9.0CA Littelfuse 1: ¥112.9 18,000Expected 2/8/2027	Mfr. Part # SMF4L9.0CA Mouser Part # 576-SMF4L9.0CA	Littelfuse	ESD Protection Diodes / TVS Diodes SMF4L - CA 10V Learn More about Littelfuse smf4l diodes	Datasheet	18,000Expected 2/8/2027	Cut Tape ¥112.9 ¥50.7 ¥44.5 ¥33.6 ¥31.9 Reel ¥19.9 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Bidirectional	1 Channel	9 V	SMD/SMT	15.4 V	10 V	SOD-123-2	26.4 A	400 W	30 kV	30 kV	- 55 C	+ 150 C	TVS Diodes	SMF4L		Reel, Cut Tape, MouseReel
ESD Protection Diodes / TVS Diodes 400W 16V 5% Uni-directional SMF4L16A Littelfuse 1: ¥103 13,721On Order	Mfr. Part # SMF4L16A Mouser Part # 576-SMF4L16A	Littelfuse	ESD Protection Diodes / TVS Diodes 400W 16V 5% Uni-directional Learn More about Littelfuse smf4l diodes	Datasheet	13,721On Order On Order Ship Dates Mfr. #: SMF4L16A Stock: 0 On Order: 1,721 Expected 11/17/2026 12,000 Expected 4/1/2027 Factory Lead-Time: 18 Weeks	Cut Tape ¥103 ¥46.2 ¥40.5 ¥30.6 Reel ¥18.1 View ¥28.2 ¥17.9 ¥17.6 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	TVS Diodes	SMF4L		Reel, Cut Tape, MouseReel
ESD Protection Diodes / TVS Diodes 400W 28V 5% Uni-directional SMF4L28A Littelfuse 1: ¥98 6,000Expected 3/2/2027	Mfr. Part # SMF4L28A Mouser Part # 576-SMF4L28A	Littelfuse	ESD Protection Diodes / TVS Diodes 400W 28V 5% Uni-directional Learn More about Littelfuse smf4l diodes	Datasheet	6,000Expected 3/2/2027	Cut Tape ¥98 ¥43.7 ¥38.4 ¥28.9 Reel ¥18.1 ¥16.6 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
ESD Protection Diodes / TVS Diodes SMF4L - CA 45V SMF4L45CA Littelfuse 1: ¥106.3 4,700Expected 2/4/2027	Mfr. Part # SMF4L45CA Mouser Part # 576-SMF4L45CA	Littelfuse	ESD Protection Diodes / TVS Diodes SMF4L - CA 45V Learn More about Littelfuse smf4l diodes	Datasheet	4,700Expected 2/4/2027	Cut Tape ¥106.3 ¥47.8 ¥42 ¥31.7 Reel ¥19.9 ¥19.6 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
ESD Protection Diodes / TVS Diodes 400W 11V 5% Uni-directional SMF4L11A Littelfuse 1: ¥116.3 Non-Stocked Lead-Time 18 Weeks	Mfr. Part # SMF4L11A Mouser Part # 576-SMF4L11A	Littelfuse	ESD Protection Diodes / TVS Diodes 400W 11V 5% Uni-directional Learn More about Littelfuse smf4l diodes	Datasheet	Non-Stocked Lead-Time 18 Weeks	Cut Tape ¥116.3 ¥73.3 ¥46.8 ¥34.9 ¥28.2 Reel ¥18.1 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Unidirectional	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	TVS Diodes	SMF4L	AEC-Q100	Reel, Cut Tape, MouseReel
ESD Protection Diodes / TVS Diodes SMF4L - A 120V SMF4L120A Littelfuse 1: ¥131.2 Non-Stocked Lead-Time 18 Weeks	Mfr. Part # SMF4L120A Mouser Part # 576-SMF4L120A	Littelfuse	ESD Protection Diodes / TVS Diodes SMF4L - A 120V Learn More about Littelfuse smf4l diodes	Datasheet	Non-Stocked Lead-Time 18 Weeks	Cut Tape ¥131.2 ¥82.7 ¥52.8 ¥39.4 ¥31.9 Reel ¥19.9	Min.: 1 Mult.: 1 : 3,000	Unidirectional	1 Channel	120 V	SMD/SMT	193 V	133 V	SOD-123-2	1 A	400 W	30 kV	30 kV	- 55 C	+ 150 C	TVS Diodes	SMF4L		Reel, Cut Tape
ESD Protection Diodes / TVS Diodes SMF4L - A 130V SMF4L130A Littelfuse 1: ¥131.2 Non-Stocked Lead-Time 18 Weeks	Mfr. Part # SMF4L130A Mouser Part # 576-SMF4L130A	Littelfuse	ESD Protection Diodes / TVS Diodes SMF4L - A 130V Learn More about Littelfuse smf4l diodes	Datasheet	Non-Stocked Lead-Time 18 Weeks	Cut Tape ¥131.2 ¥82.7 ¥52.8 ¥39.4 Reel ¥23.8 View ¥31.9 ¥23.4 ¥21.4 ¥19.6	Min.: 1 Mult.: 1 : 3,000	Unidirectional	1 Channel	130 V	SMD/SMT	209 V	144 V	SOD-123-2	1 A	400 W	30 kV	30 kV	- 55 C	+ 150 C	TVS Diodes	SMF4L		Reel, Cut Tape
ESD Protection Diodes / TVS Diodes SMF4L - A 150V SMF4L150A Littelfuse 1: ¥131.2 Non-Stocked Lead-Time 18 Weeks	Mfr. Part # SMF4L150A Mouser Part # 576-SMF4L150A	Littelfuse	ESD Protection Diodes / TVS Diodes SMF4L - A 150V Learn More about Littelfuse smf4l diodes	Datasheet	Non-Stocked Lead-Time 18 Weeks	Cut Tape ¥131.2 ¥82.7 ¥52.8 ¥39.4 Reel ¥23.8 View ¥31.9 ¥23.4 ¥21.4 ¥19.6	Min.: 1 Mult.: 1 : 3,000	Unidirectional	1 Channel	150 V	SMD/SMT	243 V	167 V	SOD-123-2	800 mA	400 W	30 kV	30 kV	- 55 C	+ 150 C	TVS Diodes	SMF4L		Reel, Cut Tape
ESD Protection Diodes / TVS Diodes SMF4L - A 170V SMF4L170A Littelfuse 1: ¥131.2 Non-Stocked Lead-Time 18 Weeks	Mfr. Part # SMF4L170A Mouser Part # 576-SMF4L170A	Littelfuse	ESD Protection Diodes / TVS Diodes SMF4L - A 170V Learn More about Littelfuse smf4l diodes	Datasheet	Non-Stocked Lead-Time 18 Weeks	Cut Tape ¥131.2 ¥82.7 ¥52.8 ¥39.4 ¥31.9 Reel ¥19.9	Min.: 1 Mult.: 1 : 3,000	Unidirectional	1 Channel	170 V	SMD/SMT	275 V	189 V	SOD-123-2	700 mA	400 W	30 kV	30 kV	- 55 C	+ 150 C	TVS Diodes	SMF4L		Reel, Cut Tape
ESD Protection Diodes / TVS Diodes SMF4L - A 188V SMF4L188A Littelfuse 1: ¥131.2 Non-Stocked Lead-Time 18 Weeks	Mfr. Part # SMF4L188A Mouser Part # 576-SMF4L188A	Littelfuse	ESD Protection Diodes / TVS Diodes SMF4L - A 188V Learn More about Littelfuse smf4l diodes	Datasheet	Non-Stocked Lead-Time 18 Weeks	Cut Tape ¥131.2 ¥82.7 ¥52.8 ¥39.4 Reel ¥23.8 View ¥31.9 ¥23.4 ¥21.4 ¥19.6	Min.: 1 Mult.: 1 : 3,000	Unidirectional	1 Channel	188 V	SMD/SMT	304 V	209 V	SOD-123-2	700 mA	400 W	30 kV	30 kV	- 55 C	+ 150 C	TVS Diodes	SMF4L		Reel, Cut Tape
ESD Protection Diodes / TVS Diodes SMF4L - A 200V SMF4L200A Littelfuse 1: ¥131.2 Non-Stocked Lead-Time 18 Weeks	Mfr. Part # SMF4L200A Mouser Part # 576-SMF4L200A	Littelfuse	ESD Protection Diodes / TVS Diodes SMF4L - A 200V Learn More about Littelfuse smf4l diodes	Datasheet	Non-Stocked Lead-Time 18 Weeks	Cut Tape ¥131.2 ¥82.7 ¥52.8 ¥39.4 Reel ¥23.8 View ¥31.9 ¥23.4 ¥21.4 ¥19.6	Min.: 1 Mult.: 1 : 3,000	Unidirectional	1 Channel	200 V	SMD/SMT	324 V	224 V	SOD-123-2	600 mA	400 W	30 kV	30 kV	- 55 C	+ 150 C	TVS Diodes	SMF4L		Reel, Cut Tape
ESD Protection Diodes / TVS Diodes SMF4L - A 220V SMF4L220A Littelfuse 1: ¥131.2 Non-Stocked Lead-Time 18 Weeks	Mfr. Part # SMF4L220A Mouser Part # 576-SMF4L220A	Littelfuse	ESD Protection Diodes / TVS Diodes SMF4L - A 220V Learn More about Littelfuse smf4l diodes	Datasheet	Non-Stocked Lead-Time 18 Weeks	Cut Tape ¥131.2 ¥82.7 ¥52.8 ¥39.4 Reel ¥23.8 View ¥31.9 ¥23.4 ¥21.4 ¥19.6	Min.: 1 Mult.: 1 : 3,000	Unidirectional	1 Channel	220 V	SMD/SMT	356 V	246 V	SOD-123-2	600 mA	400 W	30 kV	30 kV	- 55 C	+ 150 C	TVS Diodes	SMF4L		Reel, Cut Tape
ESD Protection Diodes / TVS Diodes SMF4L - A 250V SMF4L250A Littelfuse 1: ¥131.2 Non-Stocked Lead-Time 18 Weeks	Mfr. Part # SMF4L250A Mouser Part # 576-SMF4L250A	Littelfuse	ESD Protection Diodes / TVS Diodes SMF4L - A 250V Learn More about Littelfuse smf4l diodes	Datasheet	Non-Stocked Lead-Time 18 Weeks	Cut Tape ¥131.2 ¥82.7 ¥52.8 ¥39.4 ¥31.9 Reel ¥19.9	Min.: 1 Mult.: 1 : 3,000	Unidirectional	1 Channel	250 V	SMD/SMT	405 V	279 V	SOD-123-2	500 mA	400 W	30 kV	30 kV	- 55 C	+ 150 C	TVS Diodes	SMF4L		Reel, Cut Tape
ESD Protection Diodes / TVS Diodes 400W 45V 5% Uni-directional SMF4L45A Littelfuse 1: ¥93 Non-Stocked Lead-Time 18 Weeks	Mfr. Part # SMF4L45A Mouser Part # 576-SMF4L45A	Littelfuse	ESD Protection Diodes / TVS Diodes 400W 45V 5% Uni-directional Learn More about Littelfuse smf4l diodes	Datasheet	Non-Stocked Lead-Time 18 Weeks	Cut Tape ¥93 ¥59.5 ¥39.2 ¥32.1 Reel ¥24.9 View ¥28.6 ¥23.6 ¥19.6 ¥17.4 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Unidirectional	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
ESD Protection Diodes / TVS Diodes 400W 6.5V 5% Uni-directional SMF4L6.5A Littelfuse 1: ¥111.3 Non-Stocked Lead-Time 18 Weeks	Mfr. Part # SMF4L6.5A Mouser Part # 576-SMF4L6.5A	Littelfuse	ESD Protection Diodes / TVS Diodes 400W 6.5V 5% Uni-directional Learn More about Littelfuse smf4l diodes	Datasheet	Non-Stocked Lead-Time 18 Weeks	Cut Tape ¥111.3 ¥64.4 ¥45 ¥36.5 ¥32.4 Reel ¥18.1 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Unidirectional	1 Channel	6.5 V	SMD/SMT	11.2 V	7.22 V	SOD-123-2	33.1 A	400 W	30 kV	30 kV	- 55 C	+ 150 C	TVS Diodes	SMF4L	AEC-Q100	Reel, Cut Tape, MouseReel
ESD Protection Diodes / TVS Diodes 400W 75V 5% Uni-directional SMF4L75A Littelfuse 1: ¥111.3 Non-Stocked Lead-Time 18 Weeks	Mfr. Part # SMF4L75A Mouser Part # 576-SMF4L75A	Littelfuse	ESD Protection Diodes / TVS Diodes 400W 75V 5% Uni-directional Learn More about Littelfuse smf4l diodes	Datasheet	Non-Stocked Lead-Time 18 Weeks	Cut Tape ¥111.3 ¥64.4 ¥45 ¥36.5 ¥32.4 Reel ¥18.1 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Unidirectional	1 Channel	75 V	SMD/SMT	121 V	83.3 V	SOD-123-2	3.3 A	400 W	30 kV	30 kV	- 55 C	+ 150 C	TVS Diodes	SMF4L	AEC-Q100	Reel, Cut Tape, MouseReel
ESD Protection Diodes / TVS Diodes 400W 78V 5% Uni-directional SMF4L78A Littelfuse 1: ¥93 Non-Stocked Lead-Time 18 Weeks	Mfr. Part # SMF4L78A Mouser Part # 576-SMF4L78A	Littelfuse	ESD Protection Diodes / TVS Diodes 400W 78V 5% Uni-directional Learn More about Littelfuse smf4l diodes	Datasheet	Non-Stocked Lead-Time 18 Weeks	Cut Tape ¥93 ¥59.5 ¥39.2 ¥30.1 Reel ¥22.3 View ¥24.9 ¥21.9 ¥19.1 ¥17.4 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Unidirectional				126 V	95.8 V		3.2 A	400 W				+ 150 C	TVS Diodes	SMF4L	AEC-Q100	Reel, Cut Tape, MouseReel
ESD Protection Diodes / TVS Diodes 400W 8.5V 5% Uni-directional SMF4L8.5A Littelfuse 1: ¥111.3 Non-Stocked Lead-Time 18 Weeks	Mfr. Part # SMF4L8.5A Mouser Part # 576-SMF4L8.5A	Littelfuse	ESD Protection Diodes / TVS Diodes 400W 8.5V 5% Uni-directional Learn More about Littelfuse smf4l diodes	Datasheet	Non-Stocked Lead-Time 18 Weeks	Cut Tape ¥111.3 ¥64.4 ¥45 ¥36.5 ¥32.4 Reel ¥18.1 MouseReel Available	Min.: 1 Mult.: 1 : 3,000	Unidirectional	1 Channel	8.5 V	SMD/SMT	14.4 V	9.44 V	SOD-123-2	25.7 A	400 W	30 kV	30 kV	- 55 C	+ 150 C	TVS Diodes	SMF4L	AEC-Q100	Reel, Cut Tape, MouseReel
ESD Protection Diodes / TVS Diodes SMF4L - A 90V SMF4L90A Littelfuse 1: ¥116.3 Non-Stocked Lead-Time 18 Weeks	Mfr. Part # SMF4L90A Mouser Part # 576-SMF4L90A	Littelfuse	ESD Protection Diodes / TVS Diodes SMF4L - A 90V Learn More about Littelfuse smf4l diodes	Datasheet	Non-Stocked Lead-Time 18 Weeks	Cut Tape ¥116.3 ¥73.3 ¥46.8 ¥34.9 Reel ¥20.9 View ¥28.2 ¥20.8 ¥18.8 ¥17.4	Min.: 1 Mult.: 1 : 3,000	Unidirectional	1 Channel	90 V	SMD/SMT	146 V	100 V	SOD-123-2	1.4 A	400 W	30 kV	30 kV	- 55 C	+ 150 C	TVS Diodes	SMF4L		Reel, Cut Tape