The SM4TY series consists of automotive-grade Transil™ devices designed for surge protection of sensitive circuits against ISO 7637-2 pulses and electrostatic discharges per ISO 10605. Packaged in JEDEC SMA footprint with a resin meeting UL 94 V-0, these unidirectional and bidirectional components offer high power dissipation up to 400 W with a peak pulse power of 2.3 kW, low leakage current, and operate safely at junction temperatures up to 150°C. Suitable for automotive environments requiring reliable transient suppression and electromagnetic compatibility.
Secure your automotive circuits with the high-performance automotive surge protector in SMA package. The SM4T21AY offers 400 W peak pulse power and 2.3 kW surge capacity, ensuring robust transient suppression against ISO pulse standards. Designed for unidirectional and bidirectional use, it features low leakage current and operates safely within a maximum junction temperature of 150°C. With proven reliability, UL 94 V-0 resin, and automotive-grade qualification, this device guarantees long-term performance and electromagnetic compatibility in demanding automotive environments. Purchase online today for dependable surge protection.
You can click on the BUY or RFQ button to purchase SM4T21AY from an authorized STMICROELECTRONICS distributor.
You can download the SM4T21AY datasheet or visit the STMICROELECTRONICS website for support.
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