SZ1SMA 400W TVS Diodes

Littelfuse SZ1SMA 400W TVS Diodes are unidirectional and bidirectional devices designed to protect voltage-sensitive electronics from high-voltage, high-energy transients. Littelfuse SZ1SMA TVS Diodes have high clamping capability, high surge capability, low zener impedance, and fast response time (<1ns typical). Littelfuse SZ1SMA comes in a cost-effective, high-reliability package and is ideal for communication systems, automotive, medical equipment, and more.

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Description Datasheet Availability Pricing (SGD) 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 28V 400W BI-DIR SZ1SMA AEC-Q101
Datasheet
5,093In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5,000

Bidirectional 1 Channel 28 V SMD/SMT 45.4 V 31.1 V SMA (DO-214AC) 8.8 A 400 W 16 kV 16 kV - 65 C + 150 C SZ1SMAxxCAT3G AEC-Q101 Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes 30V 400W UNI-DIR SZ1SMA AEC-Q101
Datasheet
1,745In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5,000

Unidirectional 1 Channel 30 V SMD/SMT 48.4 V 33.3 V SMA (DO-214AC) 8.3 A 400 W 405 pF - 65 C + 150 C SZ1SMAxxxAT3G AEC-Q101 Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes 33V 400W UNI-DIR SZ1SMA AEC-Q101
Datasheet
6,154In Stock
10,000Expected 17/6/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5,000

Unidirectional 1 Channel 33 V SMD/SMT 53.3 V 36.7 V SMA (DO-214AC) 7.5 A 400 W 375 pF - 65 C + 150 C SZ1SMAxxxAT3G AEC-Q101 Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes 33V 400W BI-DIR SZ1SMA AEC-Q101
Datasheet
4,857In Stock
5,000Expected 3/6/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5,000
Bidirectional 1 Channel 33 V SMD/SMT 53.3 V 36.7 V SMA (DO-214AC) 7.5 A 400 W 190 pF 16 kV 16 kV - 65 C + 150 C SZ1SMAxxCAT3G AEC-Q101 Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes 36V 400W UNI-DIR SZ1SMA AEC-Q101
Datasheet
4,054In Stock
5,000Expected 3/6/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5,000

Unidirectional 1 Channel 36 V SMD/SMT 58.1 V 40 V SMA (DO-214AC) 6.9 A 400 W 345 pF - 65 C + 150 C SZ1SMAxxxAT3G AEC-Q101 Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes 43V 400W UNI-DIR SZ1SMA AEC-Q101
Datasheet
1,098In Stock
5,000Expected 19/5/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5,000

Unidirectional 1 Channel 43 V SMD/SMT 69.4 V 47.8 V SMA (DO-214AC) 5.8 A 400 W 295 pF - 65 C + 150 C SZ1SMAxxxAT3G AEC-Q101 Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes 48V 400W UNI-DIR SZ1SMA AEC-Q101
Datasheet
2,806In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5,000

Unidirectional 1 Channel 48 V SMD/SMT 77.4 V 53.3 V SMA (DO-214AC) 5.2 A 400 W 265 pF - 65 C + 150 C SZ1SMAxxxAT3G AEC-Q101 Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes 48V 400W BI-DIR SZ1SMA AEC-Q101
Datasheet
6,421In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5,000

Bidirectional 1 Channel 48 V SMD/SMT 77.4 V 53.3 V SMA (DO-214AC) 5.2 A 400 W 135 pF 16 kV 16 kV - 65 C + 150 C SZ1SMAxxCAT3G AEC-Q101 Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes 58V 400W UNI-DIR SZ1SMA AEC-Q101
Datasheet
5,138In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5,000

Unidirectional 1 Channel 58 V SMD/SMT 93.6 V 64.4 V SMA (DO-214AC) 4.3 A 400 W 225 pF - 65 C + 150 C SZ1SMAxxxAT3G AEC-Q101 Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes 58V 400W BI-DIR SZ1SMA AEC-Q101
Datasheet
2,540In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5,000

Bidirectional 1 Channel 58 V SMD/SMT 93.6 V 64.4 V SMA (DO-214AC) 4.3 A 400 W 115 pF 16 kV 16 kV - 65 C + 150 C SZ1SMAxxCAT3G AEC-Q101 Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes ZENER DO-214 400W 78V
Datasheet
661In Stock
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5,000

Unidirectional 1 Channel 78 V SMD/SMT 126 V 86.7 V SMA (DO-214AC) 3.2 A 400 W 178 pF 16 kV 16 kV - 65 C + 150 C SZS1MA Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes ZENER DO-214 400W 100V
Datasheet
4,956Expected 17/3/2026
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5,000

Unidirectional 1 Channel 100 V SMD/SMT 162 V 111 V SMA (DO-214AC) 2.5 A 400 W 162 pF 16 kV 16 kV - 65 C + 150 C SZS1MA Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes ZENER DO-214 400W 110V
Datasheet
Non-Stocked Lead-Time 17 Weeks
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5,000

Unidirectional 1 Channel 110 V SMD/SMT 177 V 122 V SMA (DO-214AC) 2.3 A 400 W 155 pF 16 kV 16 kV - 65 C + 150 C SZS1MA Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes ZENER DO-214 400W 120V
Datasheet
Non-Stocked Lead-Time 17 Weeks
Min.: 5,000
Mult.: 5,000
Reel: 5,000

Unidirectional 1 Channel 120 V SMD/SMT 193 V 133 V SMA (DO-214AC) 2.1 A 400 W 148 pF 16 kV 16 kV - 65 C + 150 C SZS1MA Reel
Littelfuse ESD Protection Diodes / TVS Diodes ZENER DO-214 400W 130V
Datasheet
Non-Stocked Lead-Time 17 Weeks
Min.: 5,000
Mult.: 5,000
Reel: 5,000

Unidirectional 1 Channel 130 V SMD/SMT 209 V 144 V SMA (DO-214AC) 1.9 A 400 W 142 pF 16 kV 16 kV - 65 C + 150 C SZS1MA Reel
Littelfuse ESD Protection Diodes / TVS Diodes ZENER DO-214 400W 160V
Datasheet
Non-Stocked Lead-Time 17 Weeks
Min.: 5,000
Mult.: 5,000
Reel: 5,000

Unidirectional 1 Channel 160 V SMD/SMT 259 V 178 V SMA (DO-214AC) 1.6 A 400 W 119 pF 16 kV 16 kV - 65 C + 150 C SZS1MA Reel
Littelfuse ESD Protection Diodes / TVS Diodes ZENER DO-214 400W 170V
Datasheet
Non-Stocked Lead-Time 17 Weeks
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5,000

Unidirectional 1 Channel 170 V SMD/SMT 275 V 189 V SMA (DO-214AC) 1.5 A 400 W 112 pF 16 kV 16 kV - 65 C + 150 C SZS1MA Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes ZENER DO-214 400W 85V
Datasheet
Non-Stocked Lead-Time 17 Weeks
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5,000

Unidirectional 1 Channel 85 V SMD/SMT 137 V 94.4 V SMA (DO-214AC) 2.9 A 400 W 173 pF 16 kV 16 kV - 65 C + 150 C SZS1MA Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes 20V 400W BI-DIR AEC? Q101
Datasheet
Non-Stocked Lead-Time 17 Weeks
Min.: 5,000
Mult.: 5,000
Reel: 5,000

Bidirectional 1 Channel 20 V SMD/SMT 32.4 V 23.37 V SMA (DO-214AC) 12.3 A 400 W 305 pF 16 kV 16 kV - 55 C + 150 C SZ1SMAxxCAT3G AEC-Q101 Reel
Littelfuse ESD Protection Diodes / TVS Diodes 54V 400W UNI-DIR SZ1SMA AEC-Q101
Datasheet
Non-Stocked Lead-Time 17 Weeks
Min.: 5,000
Mult.: 5,000
Reel: 5,000

Unidirectional 1 Channel 54 V SMD/SMT 87.1 V 60 V SMA (DO-214AC) 4.6 A 400 W 240 pF - 65 C + 150 C SZ1SMAxxxAT3G AEC-Q101 Reel
Littelfuse ESD Protection Diodes / TVS Diodes 60V 400W BI-DIR AEC? Q101
Datasheet
Non-Stocked Lead-Time 17 Weeks
MouseReel Available
Min.: 1
Mult.: 1
Reel: 5,000

Bidirectional 1 Channel 60 V SMD/SMT 96.8 V 70.21 V SMA (DO-214AC) 4.1 A 400 W 110 pF 16 kV 16 kV - 55 C + 150 C SZ1SMAxxCAT3G AEC-Q101 Reel, Cut Tape, MouseReel
Littelfuse ESD Protection Diodes / TVS Diodes 78V 400W BI-DIR AEC? Q101
Datasheet
Non-Stocked Lead-Time 17 Weeks
Min.: 5,000
Mult.: 5,000
Reel: 5,000

Bidirectional 1 Channel 78 V SMD/SMT 126 V 91.27 V SMA (DO-214AC) 3.2 A 400 W 90 pF 16 kV 16 kV - 55 C + 150 C SZ1SMAxxCAT3G AEC-Q101 Reel