1PMT5945C/TR7

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Diodes are semiconductor devices that allow electrical current to move in one direction, while blocking it from the other direction. Zener diodes typically allow current to pass from anode to cathode or from cathode to anode, but also offer a low voltage breakdown across the junction. The 1PMT5945C/TR7 is a single Zener diode specifically designed for this purpose.

The 1PMT5945C/TR7 features a volt range of 5.1 to 5.9 volts, ideal for low voltage breakdown applications. It has a maximum power dissipation of 0.005 watts and an average forward current of 40mA. The minimum dynamic impedance of this part is 0.5 ohms and its typical dynamic impedance (Zz) is 0.07 ohms. Furthermore, the 1PMT5945C/TR7 is RoHS-compliant and rated temperature range is -65°C to +150°C.

The 1PMT5945C/TR7 Zener diode is most commonly utilized in core frequency stabilization and low overload applications. Other applications include protection of microcircuits, static protection for short circuits, reverse voltage protection for power supply units, noise-protection for microprocessors, and over-voltage protection for memory cells. This versatile part can also be used as a current limiter, a voltage stabilizer or as a voltage regulator.

The working principle of a Zener diode is similar to that of a regular diode. A Zener diode will allow current to flow in either direction, until the voltage across the diode reaches its breakdown voltage point. At this point, the diode will allow the current to flow in reverse, in order to keep the voltage across it constant. The reverse current will be a function of the applied voltage and the built-in impedance of the diode. This zener breakdown effect is the result of deep levels in the band gap of the semiconductor material.

In conclusion, the 1PMT5945C/TR7 Zener diode is a reliable, durable, and versatile component, perfect for low voltage breakdown applications. This part is well suited for frequency stabilization and low overload applications, as well as a wide range of protection and regulation purposes. The 1PMT5945C/TR7’s operating principle of zener breakdown allows it to regulate the voltage across its terminals and keep current flowing at the specified rate, regardless of the applied voltage.

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