Circuit Protection

SM30T21AY

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STMicroelectronics

ESD SUPPRESSOR TVS 30KV 2-PIN SMC T/R

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DocumentsAN5241 TN1310 +14

Circuit Protection

SM30T21AY

Active

STMicroelectronics

ESD SUPPRESSOR TVS 30KV 2-PIN SMC T/R

Deep-Dive with AI

DocumentsAN5241 TN1310 +14

Specifications Series Pricing Description Documents

Technical Specifications

Parameters and characteristics for this part

Specification	SM30T21AY

Current - Peak Pulse (10/1000µs)	102.7 A
Grade	Automotive
Mounting Type	Surface Mount
Operating Temperature [Max]	175 °C
Operating Temperature [Min]	-55 °C
Package / Case	DO-214AB, SMC
Power - Peak Pulse	3 kW
Power - Peak Pulse	3000 W
Power Line Protection	False
Qualification	AEC-Q101
Supplier Device Package	SMC
Type	Zener
Unidirectional Channels [custom]	1
Voltage - Breakdown (Min) [Min]	20 V
Voltage - Clamping (Max) @ Ipp [Max]	29.2 V
Voltage - Reverse Standoff (Typ)	18 V

SM30T21 Series

Part	Grade	Voltage - Breakdown (Min) [Min]	Mounting Type	Operating Temperature [Max]	Operating Temperature [Min]	Current - Peak Pulse (10/1000µs)	Voltage - Reverse Standoff (Typ)	Supplier Device Package	Unidirectional Channels [custom]	Power - Peak Pulse	Power - Peak Pulse	Voltage - Clamping (Max) @ Ipp [Max]	Package / Case	Qualification	Type	Power Line Protection
STMicroelectronics SM30T21AY	Automotive	20 V	Surface Mount	175 °C	-55 °C	102.7 A	18 V	SMC	1	3 kW	3000 W	29.2 V	DO-214AB SMC	AEC-Q101	Zener

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

Distributor	Package	Quantity	$

Digikey	Cut Tape (CT)	1	$ 1.35
		10	$ 1.11
		100	$ 0.86
		500	$ 0.73
		1000	$ 0.59
	Digi-Reel®	1	$ 1.35
		10	$ 1.11
		100	$ 0.86
		500	$ 0.73
		1000	$ 0.59
	N/A	4520	$ 0.84
	Tape & Reel (TR)	2500	$ 0.56
		5000	$ 0.53
		12500	$ 0.51

Description

General part information

SM30T21 Series

The SM30TY Transil series has been designed to protect automotive sensitive 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. SM30TY are packaged in SMC (SMC footprint in accordance with IPC 7531 standard).Peak pulse power:3000 W (10/1000 µs)Up to 36 kW (8/20 µs)Stand-off voltage range: from 5 V to 33 VUnidirectional and bidirectional typesOperating Tj max: 150 °CHigh power capability at Tjmax:2200 W (10/1000 µs)JEDEC registered package outlineResin meets UL 94, V0AEC-Q101 qualifiedComplies with the following standardsISO 10605 - C = 150 pF, R = 330 ? exceeds level 430 kV (air discharge)30 kV (contact discharge)ISO 10605 - C = 330 pF, R = 330 ? exceeds level 430 kV (air discharge)30 kV (contact discharge)ISO 7637-2:Pulse 1: VS = -150 VPulse 2a: VS = +112 VPulse 3a: VS= -220 V