Metal Oxide Varistor DISC 20mm ZOV-20D470K
The Zinc Oxide Varistor DISC 20mm ZOV-20D470K is a high-reliability voltage-dependent resistor designed for protecting low-voltage electronic circuits against transient overvoltage events such as switching surges, inductive spikes, and electrostatic discharge. Built using zinc oxide (ZnO) ceramic technology, this varistor provides highly nonlinear voltage-current characteristics, enabling rapid response and effective energy absorption.
Features:
- Nominal varistor voltage of 47V with ±10% tolerance.
- High surge current capability up to 6.5kA (8/20µs).
- High energy absorption capability for transient suppression.
- Fast response time for effective overvoltage protection.
- Low leakage current and high insulation resistance.
- Radial leaded through-hole mounting.
- 20mm disc size for enhanced power handling.
- Wide operating temperature range from -40°C to +85°C.
Specifications:
| Parameter | Value |
|---|---|
| Varistor Voltage | 47V |
| Voltage Tolerance | ±10% |
| Maximum AC Voltage | 30VAC |
| Maximum DC Voltage | 38VDC |
| Clamping Voltage | 93V |
| Peak Surge Current (8/20µs) | 6.5kA |
| Energy Absorption | 70J~150J |
| Capacitance | ~5000pF@1kHz |
| Mounting Type | Through Hole |
| Package Type | Disc 20mm |
| Lead Pitch | 10mm |
| Operating Temperature | -40°C~+85°C |
Applications:
- Low-voltage DC power rail protection.
- Power supply input protection circuits.
- Industrial control systems.
- Consumer electronics and embedded devices.
- Automotive electronics protection.
- Communication and signal line protection.
- LED drivers and low-voltage adapters.
Package Include:
1x Metal Oxide Varistor DISC 20mm ZOV-20D470K