MMQA30VT1G

Current - Peak Pulse (10/1000µs):	554mA (8/20µs)
Base Part Number:	MMQA
Supplier Device Package:	SC-74
Package / Case:	SC-74, SOT-457
Mounting Type:	Surface Mount
Operating Temperature:	-55°C ~ 150°C (TJ)
Capacitance @ Frequency:	--
Applications:	General Purpose
Power Line Protection:	No
Power - Peak Pulse:	150W
Series:	MMQA
Voltage - Clamping (Max) @ Ipp:	43.3V
Voltage - Breakdown (Min):	28.5V
Voltage - Reverse Standoff (Typ):	23V
Unidirectional Channels:	4
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Obsolete
Lead Free Status / RoHS Status:	--
Packaging:	Tape & Reel (TR)

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Transient-voltage-suppression (TVS) diodes are a type of semiconductor diode for protecting electrical components from overvoltage and voltage transients due to electrostatic discharge (ESD) and other electrical phenomena. The TVS diode device is a unidirectional device that helps protect an electrical circuit from overvoltage events and power inductive spikes. The MMQA30VT1G is a TVS diode device designed for signal-line protection.

General Features

• 30V Stand-off Voltage
• 6.3A Peak Pulse Current
• 1500W Power Surge
• High-speed response time
• Load Dump and Load Induce protection

Application Fields

The MMQA30VT1G device is ideally suited for protection of traditional, fibre-optic, and high-speed communication lines, as well as for industrial and automotive applications. The device can be used to protect standard communication lines such as RS-232, USB, and also CAN Bus, Ethernet, and other high-speed applications such as PCIe and HDMI. It can also be used to provide overvoltage protection for automotive electronic systems and high voltage applications. The device is suitable for automotive and heavy industrial applications with vibration and large temperature changes.

Working Principle

The MMQA30VT1G device is a TVS diode based on the patented “Overvoltage-Limiting” (OVL) technology. The device works by limiting the voltage, preventing it from exceeding a critical threshold and causing circuit or component damage. The OVL technology consists of two cascaded avalanche breakdown protection zones that protect the voltage in two stages. In the first stage, the voltage is limited to a “safe level”. In the second stage, the voltage is limited to a “tolerable level”. The device also uses an advanced clamping circuit to provide high-speed response time. The MMQA30VT1G offers robust protection from electrical overvoltage events such as ESD, Load Dump, Surge, and Inductive Transients. The device is designed to be rugged and reliable, and its OVL technology helps protect your equipment and electronic systems from overvoltage or voltage transient issues.

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