STIEC45-33ACS Circuit Protection

Voltage - Clamping (Max) @ Ipp:	59V
Supplier Device Package:	SMC (DO-214AB)
Package / Case:	DO-214AB, SMC
Mounting Type:	Surface Mount
Operating Temperature:	-55°C ~ 150°C (TJ)
Capacitance @ Frequency:	--
Applications:	General Purpose
Power Line Protection:	No
Power - Peak Pulse:	--
Current - Peak Pulse (10/1000µs):	500A (8/20µs)
Series:	STIEC, TRANSIL™
Voltage - Breakdown (Min):	36.7V
Voltage - Reverse Standoff (Typ):	33V
Bidirectional Channels:	1
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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TVS - Diodes

Transient voltage suppression (TVS) diodes have become the most popular surge protection solution for many applications in the electronics industry, such us consumer electronics, telecoms, automotive, industrial and medical. The STIEC45-33ACS TVS Diode is a fixed voltage transient suppression diode designed to provide optimized clamping performance for noise suppression in various applications.

Application Field

The STIEC45-33ACS can be used to protect against transient voltage events, such as lightning strikes, electrostatic discharge (ESD), and electrical overstress (EOS) events in various consumer applications, including wireless devices, LED lighting, automotive control systems, building automation, and industrial equipment. It is qualified to AEC-Q101 standard, making it an ideal solution for automotive applications. The STIEC45-33ACS also offers high transient pulse power, low leakage current, excellent clamping performance and wide operating voltage and temperature ranges.

Working Principle

The STIEC45-33ACS is designed to provide protection against surge voltages and ESD strikes by utilizing its low breakdown voltage and high clamping voltage features. When a voltage surge is applied, it will allow current to flow through it until it reaches the breakdown voltage. At this point, it will turn on the avalanche breakdown process, acting like a Zener diode and clamping the excess voltage. The clamp voltage is the sum of the forward voltage drop of the diode and the breakdown voltage. When the surge is over, the diode will turn off, blocking any current flow. This process will repeat itself during any board transients, protecting the connected components without any additional circuitry.

Conclusion

The STIEC45-33ACS is an ideal solution for protecting consumer electronics equipment, automotive systems, industrial equipment, and lighting devices from transient voltages and ESD, meeting the most stringent safety requirements. It combines high transient pulse power, low leakage current, and excellent clamping performance in a small package, making it the ideal choice for many applications.

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