1PMT5942BE3/TR13

Application Field and Working Principle of 1PMT5942BE3/TR13

1PMT5942BE3/TR13 is a diode-zener single which belongs to the field of discrete semiconductors. It is a two-terminal, low-noise, avalanche-capable Zener diode designed to provide electrical regulation when powered by a DC supply. This device can also be used to protect audio circuitry in systems such as audio amplifiers and portable audio devices.

Features & Benefits

• High stability even at varying temperature
• Low noise operation
• High power dissipation
• High current flow
• Compact size
• Long life span

Product Specifications

1PMT5942BE3/TR13 is a 0.9 Watt Zener Diode which has a wide rated operating temperature range of -55℃ to 125℃ and a typical Zener voltage range of 9.1 to 12 V. The average dynamic impedance of this diode is typically 100Ω at a peak current of 20mA. In addition, this device has a low noise characteristic allowing operation down to 0.2mA with negligible harmonic distortion.

Working Principle

When a current is passed through a standard type of Zener diode, the voltage across the device is regulated. This is known as Zener break down. The Zener effect is produced when a large reverse voltage is applied to a semiconductor. As the reverse voltage across the diode increases, the electric field across the junction begins to exceed a certain critical value. The current through the diode then increases exponentially leading to the Zener break down.

In the case of 1PMT5942BE3/TR13, the Zener break down occurs when the reverse voltage across the diode exceeds a certain threshold value known as the Zener voltage. The Zener voltage is determined by the doping of the N-type and P-type layers in the diode and can be adjusted by changing the dopant concentrations. This diode has a low noise characteristic allowing operation down to 0.2mA with negligible harmonic distortion.

Typical Applications

• DC-DC converters
• Low-noise audio amplifier applications
• TV signal-level protector
• Portable audio devices
• Voltage regulators
• Overvoltage protection circuits

Conclusion

The 1PMT5942BE3/TR13 Zener diode is a two-terminal, low-noise, avalanche-capable device designed to provide electrical regulation when powered by a DC supply. It comes with a wide rated operating temperature range and has a high power dissipation, long life span and high current flow.

This device is suitable for applications where a Zener diode is needed for voltage regulation or for overvoltage protection. In addition, it can be used in low-noise audio applications due to its high dynamic impedance and low noise operation.