SMCJ20A-QH Allicdata Electronics
Allicdata Part #:

SMCJ20A-QH-ND

Manufacturer Part#:

SMCJ20A-QH

Price: $ 0.29
Product Category:

Circuit Protection

Manufacturer: Bourns Inc.
Short Description: TVS DIODE 20V 32.4V SMC
More Detail: N/A
DataSheet: SMCJ20A-QH datasheetSMCJ20A-QH Datasheet/PDF
Quantity: 1000
Lead Free Status / RoHS Status: Lead free / RoHS Compliant
1500 +: $ 0.26791
Stock 1000Can Ship Immediately
$ 0.29
Specifications
Series: Automotive, AEC-Q101, SMCJ
Part Status: Active
Lead Free Status / RoHS Status: --
Type: Zener
Unidirectional Channels: 1
Voltage - Reverse Standoff (Typ): 20V
Voltage - Breakdown (Min): 22.2V
Voltage - Clamping (Max) @ Ipp: 32.4V
Current - Peak Pulse (10/1000µs): 46.3A
Power - Peak Pulse: 1500W (1.5kW)
Power Line Protection: No
Applications: Automotive
Capacitance @ Frequency: --
Operating Temperature: -55°C ~ 150°C (TJ)
Mounting Type: Surface Mount
Package / Case: DO-214AB, SMC
Supplier Device Package: SMC (DO-214AB)
Description

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TVS diodes, also commonly known as Transient Voltage Suppression diodes, are an important component used in circuit protection. They work to protect circuit boards and other electronic components from unexpected voltage changes or surges. The SMCJ20A-QH is a TVS diode specifically designed to protect from high-energy transient over-voltage events including electro-static discharge (ESD), electrical fast transients (EFT), and lightning-induced transient over-voltages. This article will cover the application fields and working principle of the SMCJ20A-QH.

The SMCJ20A-QH can be used in a broad range of applications ranging from consumer electronic products to automotive and industrial systems. It is broadly used in high-end consumer electronics such as tablets, smartphones, and game consoles where it helps prevent damage from the expected transient over-voltages generated by ESD and EFT. It is also frequently used in automotive and industrial systems such as high-end medical equipment and industrial control systems, where it guards against transient over-voltage events caused by the voltage spikes that can follow lightning strikes.

The SMCJ20A-QH is an ultra-low-capacitance, low-clamping voltage, avalanche diode. These characteristics make it ideal for protecting high-speed data lines such as those found in fiber optic applications as the low capacitance minimizes the signal distortion and the low-clamping voltage prevents over-voltage damage.

The SMCJ20A-QH works by sensing the changes in voltage and quickly turning on, creating an avalanche path for the current. This forms a low-resistance path that diverts the current away from vulnerable components. This ensures that the voltage does not rise too high and that the current is dissipated without causing any damage to the components. The SMCJ20A-QH is also able to repeat this process multiple times if needed, as it is capable of withstanding multiple pulse power surges.

The SMCJ20A-QH is a surface-mount device and it can be soldered directly onto circuit boards. It comes in an SOT-223 package, making it compact enough to fit into a variety of locations and spaces. The device runs on a maximum reverse surge current of 40A and a maximum clamping voltage of 30V, making it suitable for a wide range of transient over-voltage events.

The SMCJ20A-QH is an important device for ensuring the protection of circuit boards and other components from high-energy transient over-voltages. It has a broad range of applications, is surface mountable, and can be used in a variety of space-constrained applications due to its small size. The device works to protect circuit boards and components by sensing these over-voltage events and quickly turning on, providing a low-resistance path for current to be diverted away from vulnerable components.

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

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