2M100ZHA0G

A Zener diode is an electronic component that allows current to flow in the forward direction as a resistor, but also in the reverse direction if the voltage is higher than a certain breakdown voltage called the Zener voltage or knee voltage. The 2M100ZHA0G is a single-phase, break-down type Zener diode with a power dissipation capability up to 3 W. It is constructed with a polyethylene plastic chip carrier mounted in a standard TO-92 package.

The 2M100ZHA0G has a nominal Zener voltage of 4.1 V and a maximum Zener impedance of 4.2 KOhms at 4.1 V. It also has a maximum reverse current of 5 mA and a maximum forward current of 50 mA. The diode has a maximum power dissipation rating of 3 W and a typical thermal resistance of 50 degrees C/W.

The 2M100ZHA0G is typically used to stabilize a voltage source, provide over-voltage protection for circuits, provide reverse-voltage protection for transistor-based circuits, or to provide clamping action to protect semiconductor devices from excessive voltage transients. The diode has a variety of applications, from audio frequency power supply applications to sophisticated medical imaging and sensing equipment.

The basic working principle of the diode is based on a property known as the Zener effect, which is the ability of a diode to conduct a reverse current when the reverse bias voltage exceeds a certain breakdown voltage. As the reverse bias voltage increases, the electric field intensifies and electrons near the P-N junction are accelerated to a high enough energy level to overcome the barrier between the P and N type materials and move into the N type material. This in turn, produces a large reverse current.

Once the reverse current reaches a peak, the reverse breakdown voltage, known as the Zener voltage or knee voltage, is reached. At this voltage, the diode begins to conduct reverse current, which provides a voltage reference for the circuit. The Zener voltage remains constant regardless of the amount of reverse current conducted.

The 2M100ZHA0G is a reliable and cost-effective Zener diode option for a variety of applications. Its ability to provide protection from reverse voltage and its voltage-stabilizing features make it an essential component for modern electronic systems.