120V Zeener Diode ( Pack of 5 )
| Specification | Details |
| Zener Voltage (Vz) | 120V |
| Package Type | DO-41 / DO-201 |
| Operating Temp. | -65°C to +175°C |
| Forward Voltage | ~1.2V |
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| Specification | Details |
| Zener Voltage (Vz) | 120V |
| Package Type | DO-41 / DO-201 |
| Operating Temp. | -65°C to +175°C |
| Forward Voltage | ~1.2V |
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2288555
The 120V Zener Diode is a high-voltage semiconductor component engineered to provide precise voltage regulation and transient suppression in power-sensitive circuits. Unlike standard diodes, this Zener diode is designed to operate in the reverse-bias breakdown region, maintaining a stable 120V reference across its terminals once the threshold is met. This makes it an essential component for DC voltage clamping, power supply regulation, and protecting sensitive high-voltage MOSFETs or IGBTs from inductive spikes and over-voltage conditions.
High-Voltage Regulation: Maintains a rock-solid 120V reference, ideal for industrial power stages and vacuum tube biasing.
Transient Voltage Suppression: Acts as a high-speed clamp to absorb voltage surges that exceed 120V, preventing catastrophic failure of downstream components.
Sharp Zener Knee: Features a well-defined breakdown characteristic for accurate switching and clipping performance.
Thermally Stable: Built with high-quality silicon to ensure consistent voltage regulation even under varying thermal loads.
Rugged Construction: Encapsulated in a durable through-hole package designed for easy mounting on PCBs or terminal strips.
Zener Impedance: Low dynamic resistance for superior regulation under load.
Mounting Type: Through-hole axial leads.
Leakage Current: Ultra-low reverse leakage below the Zener breakdown point.
Heat Management: At 120V, even small amounts of current generate significant heat. Always calculate the power dissipation ($P = 120 \times I$) and ensure it stays well within the diode's wattage rating. If the diode feels hot to the touch, increase the series resistance or use multiple diodes in parallel (with balancing resistors).
Series Resistor Necessity: Never connect this diode directly across a 120V+ source without a current-limiting series resistor. Without a resistor to drop the excess voltage, the diode will draw infinite current and fail instantly.
Correct Orientation: For voltage regulation, the diode must be installed in Reverse Bias. The Cathode (marked with a band) must be connected to the more positive side of the circuit, while the Anode connects to the lower potential or Ground.
Capacitive Filtering: When using this as a voltage reference for high-impedance circuits, place a high-voltage ceramic capacitor in parallel to filter out the high-frequency switching noise inherent in the Zener breakdown process.
5 x 120V Zener Diodes
Disclaimer: This is a high-voltage component. Ensure all surrounding capacitors and transistors are rated for at least 150V-200V to avoid dielectric breakdown. Always discharge high-voltage capacitors before handling circuits involving 120V Zener diodes.
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My go-to site for electronic components and recently 3D prints. Hope they restock more drone components soon.
Service is so good that I can't explain 😍😃
Nice customer support. Genuine products and quick response from the RoboGears team.
Excellent range of robotics components. Very useful for student projects and DIY electronics.
Great STEM kits and electronics products. Perfect place for students and beginners.
Good product selection and excellent customer support. Highly recommended.
Shopping for innovative components is always a pleasure here. Staff is knowledgeable and helpful.
Best place I discovered recently. Got all my components and the staff is very polite.
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