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Ⅰ.Overview of product

VESD03A1B-HD1-GS08 is a surface-mount Zener-type TVS diode produced by Vishay General Semiconductor, designed for reliable transient voltage protection in various electronic devices.

Ⅱ.Core parameter

Category:Circuit Protection,Transient Voltage Suppressors (TVS),TVS Diodes

Mfr:Vishay General Semiconductor - Diodes Division

Packaging:Tape & Reel

Part Status:Active

Type:Zener

Voltage - Reverse Standoff (Typ):3.3V (Max)

Voltage - Breakdown (Min):5V

Voltage - Clamping (Max) @ Ipp:9V

Current - Peak Pulse (10/1000µs):3.5A (8/20µs)

Power - Peak Pulse:31W

Capacitance @ Frequency:25pF @ 1MHz

Operating Temperature:-40°C ~ 125°C (TJ)

Mounting Type:Surface Mount

Package / Case:SOD-882

Ⅲ.Main characteristics

Zener Type:Adopts Zener diode structure to provide effective transient voltage suppression. It works by clamping the voltage to a safe level when transient surges occur, protecting sensitive components from damage.

Low Reverse Standoff:Features a maximum reverse standoff voltage of 3.3V, suitable for low-voltage electronic systems. This low voltage rating ensures it does not interfere with the normal operation of low-voltage circuits while providing protection.

High Peak Pulse Power:Boasts a 31W peak pulse power, capable of withstanding high-energy transient surges.It can absorb large pulse currents without being damaged, ensuring long-term reliable protection.

Low Capacitance:Only 25pF capacitance at 1MHz, minimizing signal interference. This low capacitance makes it ideal for high-frequency applications where signal integrity is critical, such as data lines.

High Peak Pulse Current:Supports a 3.5A peak pulse current (8/20µs), effectively diverting transient currents away from sensitive components. It quickly responds to surges and channels excess current to ground, preventing voltage spikes.

Compact Package:Comes in SOD-882 surface-mount package, saving PCB space. Its small size allows for high-density layout, making it suitable for miniaturized electronic devices.

Ⅳ.Application field

Smartphone Protection:Protects the charging port and data lines of smartphones from ESD and transient voltage surges. It prevents damage to the phone’s internal circuits caused by sudden voltage spikes during charging or data transfer.

Bluetooth Headphones:Shields the Bluetooth module and battery interface from transient surges. It ensures the stable operation of Bluetooth headphones, avoiding malfunctions caused by ESD or voltage fluctuations.

IoT Sensors:Protects the signal pins and power supply of IoT sensor nodes from transient interference. It ensures reliable data collection and transmission of IoT sensors, even in environments with frequent voltage surges.

Portable Chargers:Guards the input and output ports of portable chargers against voltage spikes. It prevents damage to the charger’s internal components and the devices being charged, ensuring safe charging.

Tablet PCs:Protects the touch screen interface and USB ports from ESD damage. It maintains the normal functionality of tablet PCs, avoiding screen glitches or port failures caused by electrostatic discharge.

Ⅴ.Summary

VESD03A1B-HD1-GS08 is a high-performance Zener-type TVS diode with low capacitance, high peak pulse power, and compact size, making it an ideal choice for transient voltage protection in low-voltage, miniaturized electronic devices.