MASMLG58CA Circuit Protection

Voltage - Clamping (Max) @ Ipp:	93.6V
Supplier Device Package:	SMLG (DO-215AB)
Package / Case:	DO-215AB, SMC Gull Wing
Mounting Type:	Surface Mount
Operating Temperature:	-65°C ~ 150°C (TJ)
Capacitance @ Frequency:	--
Applications:	General Purpose
Power Line Protection:	No
Power - Peak Pulse:	3000W (3kW)
Current - Peak Pulse (10/1000µs):	32A
Series:	Military, MIL-PRF-19500
Voltage - Breakdown (Min):	64.4V
Voltage - Reverse Standoff (Typ):	58V
Bidirectional Channels:	1
Type:	Zener
Moisture Sensitivity Level (MSL):	--
Part Status:	Active
Lead Free Status / RoHS Status:	--
Packaging:	Bulk

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MASMLG58CA TVS - Diodes: Application field and Working Principle

The MASMLG58CA is a transient voltage suppressor diode (TVS) provided by ON Semiconductor. It is a discrete silicon (Si) diode used for unwanted overvoltage protection. It is specifically designed for applications in which the maximum allowable peak transient voltage is 58V. The diode is composed of two back-to-back zener diodes, and is capable of suppressing transients up to 5A without being destroyed.

Application Field

The MASMLG58CA is primarily used in automotive, industrial, consumer, and medical applications for the protection of sensitive electronics from overvoltage transients. These applications may include motor control electronics, power supplies for industrial equipment, or high-voltage transients in electric power converters. Additionally, the MASMLG58CA can be used in portable or hand-held electronics, circuit boards, and other applications that require protection from overvoltage transients.

Working Principle

The MASMLG58CA works by providing a low forward voltage drop between the anode and cathode of the diode. When an overvoltage transient occurs, the diode conducts a current which is proportional to the transient voltage. This current is limited by the internal resistance of the diode, thus protecting the protected circuit by clamping the transient voltage to a safe level.The operation of the MASMLG58CA is based on the principle of a zener diode. A zener diode is a semiconductor device composed of two back-to-back reverse biased p-n junctions. When a reverse bias voltage is applied to the diode, a current flows, which is limited by the internal resistance of the diode. This current is known as a “zener current” and is proportional to the applied voltage.The MASMLG58CA is composed of two back-to-back zener diodes, one with a breakdown voltage of 58V and the other with a breakdown voltage of 54V. The diode has an internal resistance of 1Ω, and a maximum power dissipation of 500mW. When an overvoltage transient occurs, the diode conducts a current which is limited by the internal resistance. This current clamps the transient voltage to a safe level, thus protecting the protected circuit from destruction.

Advantages

The MASMLG58CA offers several advantages over traditional protection components. For instance, the diode has a low forward voltage drop, which allows for more efficient power conversion. Additionally, the diode is very small in size, which allows it to be easily integrated into circuits. Furthermore, the diode is capable of handling extremely high transient voltages up to 58V, while maintaining a low capacitance.

Conclusion

The MASMLG58CA is a transient voltage suppressor diode well-suited for protecting sensitive electronics from overvoltage transients. It is composed of two back-to-back zener diodes capable of handling transients up to 58V without destruction. The low forward voltage drop and small size make the MASMLG58CA ideal for integration into circuits, while the high transient voltage and low capacitance make it well-suited for a variety of protection applications.

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