ESD Protection Diodes / TVS Diodes

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SMA SM4TY 400W Automotive Transil™

STMicroelectronics SMA SM4TY 400W Automotive Transil^™ series protects sensitive automotive circuits against surges defined in ISO 7637-2 and against electrostatic discharges according to ISO 10605. The planar technology makes it compatible with high-end circuits where low leakage current and high junction temperature are required to provide reliability and stability over time. STMicroelectronics SM4TY devices are packaged in SMA (SMA footprint per IPC 7531 standard).

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (EUR) 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 400 W 2.3kW Transil 5V to 70V Uni SM4T33AY STMicroelectronics 1: 1,43 € 2 200In Stock	Mfr. Part No. SM4T33AY Mouser Part No 511-SM4T33AY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 400 W 2.3kW Transil 5V to 70V Uni Learn More about STMicroelectronics stmicro sm4ty automotive transil	Datasheet	2 200In Stock	Cut Tape 1,43 € 0,912 € 0,677 € 0,603 € Reel 0,358 € View 0,474 € 0,451 € 0,439 € 0,328 € MouseReel Available	Min.: 1 Mult.: 1 : 5 000	Unidirectional	1 Channel	28 V	SMD/SMT	59 V	31.1 V	SMA (DO-214AC)	39 A	400 W	30 kV	30 kV	- 55 C	+ 150 C	TVS Diodes	SM4TY	AEC-Q100	Reel, Cut Tape, MouseReel
ESD Protection Diodes / TVS Diodes 400 W 2.3kW Transil 5V to 70V Uni SM4T47AY STMicroelectronics 1: 1,43 € 2 028In Stock	Mfr. Part No. SM4T47AY Mouser Part No 511-SM4T47AY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 400 W 2.3kW Transil 5V to 70V Uni Learn More about STMicroelectronics stmicro sm4ty automotive transil	Datasheet	2 028In Stock	Cut Tape 1,43 € 0,912 € 0,677 € 0,603 € Reel 0,358 € View 0,474 € 0,451 € 0,411 € 0,328 € MouseReel Available	Min.: 1 Mult.: 1 : 5 000	Unidirectional	1 Channel	40 V	SMD/SMT	84 V	44.4 V	SMA (DO-214AC)	27 A	400 W	30 kV	30 kV	- 55 C	+ 150 C	TVS Diodes	SM4TY	AEC-Q100	Reel, Cut Tape, MouseReel
ESD Protection Diodes / TVS Diodes 400 W 2.3kW Transil 5V to 70V Bi SM4T47CAY STMicroelectronics 1: 1,51 € 144In Stock 5 000Expected 05/11/2026	Mfr. Part No. SM4T47CAY Mouser Part No 511-SM4T47CAY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 400 W 2.3kW Transil 5V to 70V Bi Learn More about STMicroelectronics stmicro sm4ty automotive transil	Datasheet	144In Stock 5 000Expected 05/11/2026	Cut Tape 1,51 € 0,955 € 0,715 € 0,637 € Reel 0,351 € View 0,438 € 0,422 € 0,417 € 0,342 € MouseReel Available	Min.: 1 Mult.: 1 : 5 000	Bidirectional	1 Channel	40 V	SMD/SMT	84 V	44.4 V	SMA (DO-214AC)	27 A	400 W	30 kV	30 kV	- 55 C	+ 150 C	TVS Diodes	SM4TY	AEC-Q100	Reel, Cut Tape, MouseReel
ESD Protection Diodes / TVS Diodes 400 W 2.3kW Transil 5V to 70V Bi SM4T50CAY STMicroelectronics 1: 0,98 € 3 489In Stock 5 000Expected 05/11/2026	Mfr. Part No. SM4T50CAY Mouser Part No 511-SM4T50CAY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 400 W 2.3kW Transil 5V to 70V Bi Learn More about STMicroelectronics stmicro sm4ty automotive transil	Datasheet	3 489In Stock 5 000Expected 05/11/2026	Cut Tape 0,98 € 0,453 € 0,401 € 0,31 € Reel 0,228 € View 0,305 € 0,286 € 0,203 € MouseReel Available	Min.: 1 Mult.: 1 : 5 000	Bidirectional	1 Channel	43 V	SMD/SMT	91 V	47.8 V	SMA (DO-214AC)	25 A	400 W	30 kV	30 kV	- 55 C	+ 150 C	TVS Diodes	SM4TY	AEC-Q100	Reel, Cut Tape, MouseReel
ESD Protection Diodes / TVS Diodes 400 W 2.3kW Transil 5V to 70V Uni SM4T6V7AY STMicroelectronics 1: 0,929 € 5 456In Stock	Mfr. Part No. SM4T6V7AY Mouser Part No 511-SM4T6V7AY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 400 W 2.3kW Transil 5V to 70V Uni Learn More about STMicroelectronics stmicro sm4ty automotive transil	Datasheet	5 456In Stock	Cut Tape 0,929 € 0,427 € 0,378 € 0,291 € Reel 0,213 € View 0,284 € 0,272 € 0,19 € 0,187 € MouseReel Available	Min.: 1 Mult.: 1 : 5 000	Unidirectional	1 Channel	5 V	SMD/SMT	13.4 V	6.4 V	SMA (DO-214AC)	174 A	400 W	30 kV	30 kV	- 55 C	+ 150 C	TVS Diodes	SM4TY	AEC-Q100	Reel, Cut Tape, MouseReel
ESD Protection Diodes / TVS Diodes 400 W 2.3kW Transil 5V to 70V Uni SM4T12AY STMicroelectronics 1: 0,929 € 1 925In Stock	Mfr. Part No. SM4T12AY Mouser Part No 511-SM4T12AY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 400 W 2.3kW Transil 5V to 70V Uni Learn More about STMicroelectronics stmicro sm4ty automotive transil	Datasheet	1 925In Stock	Cut Tape 0,929 € 0,427 € 0,378 € 0,291 € Reel 0,213 € View 0,284 € 0,267 € 0,19 € MouseReel Available	Min.: 1 Mult.: 1 : 5 000	Unidirectional	1 Channel	10 V	SMD/SMT	21.7 V	11.1 V	SMA (DO-214AC)	106 A	400 W	30 kV	30 kV	- 55 C	+ 150 C	TVS Diodes	SM4TY	AEC-Q100	Reel, Cut Tape, MouseReel
ESD Protection Diodes / TVS Diodes 400 W 2.3kW Transil 5V to 70V Bi SM4T35CAY STMicroelectronics 1: 1,44 € 10 000Expected 23/11/2026	Mfr. Part No. SM4T35CAY Mouser Part No 511-SM4T35CAY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 400 W 2.3kW Transil 5V to 70V Bi Learn More about STMicroelectronics stmicro sm4ty automotive transil	Datasheet	10 000Expected 23/11/2026	Cut Tape 1,44 € 0,886 € 0,70 € 0,601 € Reel 0,351 € View 0,47 € 0,422 € 0,403 € 0,342 € MouseReel Available	Min.: 1 Mult.: 1 : 5 000	Bidirectional	1 Channel	30 V	SMD/SMT	64.3 V	33.3 V	SMA (DO-214AC)	36 A	400 W	30 kV	30 kV	- 55 C	+ 150 C	TVS Diodes	SM4TY	AEC-Q100	Reel, Cut Tape, MouseReel
ESD Protection Diodes / TVS Diodes 400 W 2.3kW Transil 5V to 70V Uni SM4T39AY STMicroelectronics 1: 1,43 € 17 648On Order	Mfr. Part No. SM4T39AY Mouser Part No 511-SM4T39AY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 400 W 2.3kW Transil 5V to 70V Uni Learn More about STMicroelectronics stmicro sm4ty automotive transil	Datasheet	17 648On Order On Order Ship Dates Mfr. No: SM4T39AY Stock: 0 On Order: 7 648 Expected 05/11/2026 10 000 Expected 23/11/2026 Factory Lead Time: 16 Weeks	Cut Tape 1,43 € 0,912 € 0,677 € 0,603 € Reel 0,358 € View 0,474 € 0,432 € 0,411 € 0,328 € MouseReel Available	Min.: 1 Mult.: 1 : 5 000	Unidirectional	1 Channel	33 V	SMD/SMT	69.7 V	36.7 V	SMA (DO-214AC)	33 A	400 W	30 kV	30 kV	- 55 C	+ 150 C	TVS Diodes	SM4TY	AEC-Q100	Reel, Cut Tape, MouseReel
ESD Protection Diodes / TVS Diodes Automotive 400 W, 12 V TVS in SMA SM4T14AY STMicroelectronics 1: 0,929 € Non-Stocked Lead-Time 16 Weeks	Mfr. Part No. SM4T14AY Mouser Part No 511-SM4T14AY	STMicroelectronics	ESD Protection Diodes / TVS Diodes Automotive 400 W, 12 V TVS in SMA Learn More about STMicroelectronics stmicro sm4ty automotive transil	Datasheet	Non-Stocked Lead-Time 16 Weeks	Cut Tape 0,929 € 0,427 € 0,378 € 0,291 € Reel 0,213 € View 0,279 € 0,267 € 0,19 € MouseReel Available	Min.: 1 Mult.: 1 : 5 000	Unidirectional	1 Channel	12 V	SMD/SMT	25.3 V	13.3 V	SMA (DO-214AC)	91 A	400 W	30 kV	30 kV	- 55 C	+ 150 C	TVS Diodes	SM4TY	AEC-Q100	Reel, Cut Tape, MouseReel
ESD Protection Diodes / TVS Diodes 400 W 2.3kW Transil 5V to 70V Uni SM4T23AY STMicroelectronics 1: 1,51 € Non-Stocked Lead-Time 16 Weeks	Mfr. Part No. SM4T23AY Mouser Part No 511-SM4T23AY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 400 W 2.3kW Transil 5V to 70V Uni Learn More about STMicroelectronics stmicro sm4ty automotive transil	Datasheet	Non-Stocked Lead-Time 16 Weeks	Cut Tape 1,51 € 0,963 € 0,717 € 0,639 € Reel 0,358 € View 0,502 € 0,464 € 0,452 € 0,328 € MouseReel Available	Min.: 1 Mult.: 1 : 5 000	Unidirectional	1 Channel	20 V	SMD/SMT	42.8 V	22.2 V	SMA (DO-214AC)	54 A	400 W	30 kV	30 kV	- 55 C	+ 150 C	TVS Diodes	SM4TY	AEC-Q100	Reel, Cut Tape, MouseReel
ESD Protection Diodes / TVS Diodes 400 W 2.3kW Transil 5V to 70V Bi SM4T23CAY STMicroelectronics 5 000: 0,372 € Non-Stocked Lead-Time 16 Weeks	Mfr. Part No. SM4T23CAY Mouser Part No 511-SM4T23CAY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 400 W 2.3kW Transil 5V to 70V Bi Learn More about STMicroelectronics stmicro sm4ty automotive transil	Datasheet	Non-Stocked Lead-Time 16 Weeks	Reel 0,372 € 0,342 €	Min.: 5 000 Mult.: 5 000 : 5 000	Bidirectional	1 Channel	20 V	SMD/SMT	42.8 V	22.2 V	SMA (DO-214AC)	54 A	400 W	30 kV	30 kV	- 55 C	+ 150 C	TVS Diodes	SM4TY	AEC-Q100	Reel
ESD Protection Diodes / TVS Diodes 400 W 2.3kW Transil 5V to 70V Uni SM4T68AY STMicroelectronics 1: 1,53 € Non-Stocked Lead-Time 16 Weeks	Mfr. Part No. SM4T68AY Mouser Part No 511-SM4T68AY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 400 W 2.3kW Transil 5V to 70V Uni Learn More about STMicroelectronics stmicro sm4ty automotive transil	Datasheet	Non-Stocked Lead-Time 16 Weeks	Cut Tape 1,53 € 0,946 € 0,742 € 0,63 € Reel 0,372 € View 0,49 € 0,447 € 0,437 € 0,351 € MouseReel Available	Min.: 1 Mult.: 1 : 5 000	Unidirectional	1 Channel	58 V	SMD/SMT	121 V	64.4 V	SMA (DO-214AC)	19 A	400 W	30 kV	30 kV	- 55 C	+ 150 C	TVS Diodes	SM4TY	AEC-Q100	Reel, Cut Tape, MouseReel
ESD Protection Diodes / TVS Diodes 400 W 2.3kW Transil 5V to 70V Uni SM4T7V6AY STMicroelectronics 5 000: 0,213 € Non-Stocked Lead-Time 16 Weeks	Mfr. Part No. SM4T7V6AY Mouser Part No 511-SM4T7V6AY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 400 W 2.3kW Transil 5V to 70V Uni Learn More about STMicroelectronics stmicro sm4ty automotive transil	Datasheet	Non-Stocked Lead-Time 16 Weeks	Reel 0,213 € 0,179 €	Min.: 5 000 Mult.: 5 000 : 5 000	Unidirectional	1 Channel	6.5 V	SMD/SMT	14.5 V	7.2 V	SMA (DO-214AC)	160 A	400 W	30 kV	30 kV	- 55 C	+ 150 C	TVS Diodes	SM4TY	AEC-Q100	Reel
ESD Protection Diodes / TVS Diodes 400 W 2.3kW Transil 5V to 70V Bi SM4T12CAY STMicroelectronics 5 000: 0,228 € Non-Stocked Lead-Time 16 Weeks	Mfr. Part No. SM4T12CAY Mouser Part No 511-SM4T12CAY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 400 W 2.3kW Transil 5V to 70V Bi Learn More about STMicroelectronics stmicro sm4ty automotive transil	Datasheet	Non-Stocked Lead-Time 16 Weeks	Reel 0,228 € 0,203 €	Min.: 5 000 Mult.: 5 000 : 5 000	Bidirectional	1 Channel	10 V	SMD/SMT	21.7 V	11.1 V	SMA (DO-214AC)	106 A	400 W	30 kV	30 kV	- 55 C	+ 150 C	TVS Diodes	SM4TY	AEC-Q100	Reel
ESD Protection Diodes / TVS Diodes 400 W 2.3kW Transil 5V to 70V Uni SM4T50AY STMicroelectronics 5 000: 0,213 € Non-Stocked Lead-Time 16 Weeks	Mfr. Part No. SM4T50AY Mouser Part No 511-SM4T50AY	STMicroelectronics	ESD Protection Diodes / TVS Diodes 400 W 2.3kW Transil 5V to 70V Uni Learn More about STMicroelectronics stmicro sm4ty automotive transil	Datasheet	Non-Stocked Lead-Time 16 Weeks	Reel 0,213 € 0,19 €	Min.: 5 000 Mult.: 5 000 : 5 000	Unidirectional	1 Channel	43 V	SMD/SMT	91 V	47.8 V	SMA (DO-214AC)	25 A	400 W	30 kV	30 kV	- 55 C	+ 150 C	TVS Diodes	SM4TY	AEC-Q100	Reel