MMQA18VT1

Current - Peak Pulse (10/1000µs):	923mA (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:	26V
Voltage - Breakdown (Min):	17.1V
Voltage - Reverse Standoff (Typ):	14V
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Part Status:	Obsolete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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Introduction

TVS (Transient Voltage Suppressor) diodes are devices used to protect sensitive electronic equipment from being damaged due to voltage transients. Voltage transients are short pulses of high voltage and are usually caused by power surges, lightning strikes or static electricity. TVS diodes are designed to act as a “valve”, quickly releasing the high voltage in a controlled manner. This protection is provided without causing any harm to the sensitive equipment underneath.

MMQA18VT1 Application Field and Working Principle

The MMQA18VT1 is a diode specifically designed for transient voltage protection applications in automotive and other electronic industrial sectors. It is capable of withstanding up to 18 volts and can be used to protect a wide range of automotive components, from sensors and relays to semiconductors. The MMQA18VT1 works by taking the high voltage pulse and dissipating it through a controlled current pathway. The diode is designed to reduce the voltage pulse before it reaches the sensitive equipment, thus minimizing the risk of damage. The MMQA18VT1 is capable of dissipating large amounts of energy in a short period of time and can operate independently of the load. It has a low on-resistance which means it can be used in low voltage circuits without affecting the performance of the circuit. In addition, it has a low response time, which means it can react to sudden voltage transients quickly.

Conclusion

TVS diodes, like the MMQA18VT1, provide reliable protection to sensitive electronic equipment from voltage transients. The MMQA18VT1 is specifically designed for automotive applications and can withstand high voltages of up to 18 volts. It has a low response time and can quickly dissipate large amounts of energy in a controlled manner. The diode can be used in low voltage circuits without affecting performance and is a great choice for automotive and other electronic industrial sectors.

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