SA33C Circuit Protection

Series:	SA
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Type:	Zener
Bidirectional Channels:	1
Voltage - Reverse Standoff (Typ):	33V
Voltage - Breakdown (Min):	34.79V
Voltage - Clamping (Max) @ Ipp:	55.97V
Current - Peak Pulse (10/1000µs):	9.6A
Power - Peak Pulse:	500W
Power Line Protection:	No
Applications:	General Purpose
Capacitance @ Frequency:	--
Operating Temperature:	-55°C ~ 175°C (TJ)
Mounting Type:	Through Hole
Package / Case:	DO-204AC, DO-15, Axial
Supplier Device Package:	DO-204AC (DO-15)

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Introduction

TVS-diodes (Transient Voltage Suppressors), also known as TransZorbs, are used to protect sensitive electronic components in a circuit from voltage transients, such as ESD, EFT, Surge, and Inductive switching transients. In this article, we will discuss the SA33C application field and working principle.

SA33C Application and Description

The SA33C is an ultra low-capacitance surface-mount device developed by STMicroelectronics. It is designed to protect high-speed, high-frequency data lines from the damaging effects of ESD, EFT, Surge, and Inductive switching. The SA33C features excellent clamping characteristics and fast response times, ensuring that voltage transients are quickly and effectively absorbed. The device is epoxy molded for enhanced temperature and moisture protection, and it is constructed using high-reliability ceramic materials that ensure long-term reliability. It can be easily integrated into a PCB design thanks to its symmetrical design and its EEE compliance. The device measures in a 9mm x 9mm surface, and has a low profile of 1.3mm so that it can fit into tight spaces. The SA33C is suitable for a variety of applications including automotive electronics, communication systems, consumer electronics, and industrial systems. It offers excellent clamping characteristics to protect high-speed data lines, making it suitable for low voltage, high speed circuits.

SA33C Working Principle

The SA33C works by clamping the voltage on the data line whenever the voltage exceeds the SA33C\'s breakdown voltage. The device functions by utilizing avalanche breakdown to reduce the voltage across the device and by utilizing clamping action to limit the voltage across the data line. When the voltage on the data line exceeds the device\'s breakdown voltage, the device will conduct current for a short amount of time. The current passes through the device and is stored in the avalanche region, while the voltage is clamped. The device then quickly dissipates the energy stored in the avalanche region. The clamp response of the device is fast to ensure that the voltage on the data line does not exceed the safe limit. This characteristic is especially important for high-speed, high frequency signals, as a voltage transient can cause significant damage to sensitive electronic components.

Conclusion

In conclusion, the SA33C is a high performance, low capacitance surface-mount TVS-diode designed to protect sensitive electronic components on high-speed data lines from voltage transients. It features a low profile and symmetrical design, making it easy to integrate into a PCB design. The device functions by utilizing avalanche breakdown and clamping action to reduce the voltage and limit the voltage on the data line. The device is suitable for a variety of applications, including automotive electronics, communication systems, industrial systems, and consumer electronics.

The specific data is subject to PDF, and the above content is for reference

Part Number	Manufacturer	Price	Quantity	Description