The Metal Oxide Varistor 470V 2.5kA DISC 10mm 10D471K is a 10mm disc zinc-oxide (ZOV) varistor engineered for transient over-voltage suppression and surge energy absorption in electronic and power systems. It provides a nominal varistor voltage around 470V and a low clamping voltage under high-energy 8/20µs surge pulses, delivering reliable protection for semiconductors, power supplies, industrial controls and consumer electronics while occupying minimal board area.
Features
- Nominal varistor voltage suitable for 470V class transient protection applications.
- High surge capability rated for 2.5kA (8/20µs) peak current to absorb large transient events.
- Additional high-energy tolerance for longer pulse durations (10/1000µs class ratings).
- Compact 10mm disc footprint for space-constrained PCB layouts.
- Low-profile construction with robust dielectric and high insulation resistance to reduce arcing risk.
Specifications
| Parameter |
Value |
| Part Number |
10D471K |
| Varistor Nominal Voltage (V@1mA) |
470V |
| Clamping Voltage (8/20µs) |
775V |
| Max Peak Current (8/20µs) |
2.5kA |
| Max Peak Current (10/1000µs) |
3.5kA |
| Rated AC Voltage |
30Vrms |
| Energy Absorption |
70J |
| Capacitance (@1kHz) |
2100pF |
| Diameter |
10mm |
| Thickness |
5.4mm |
| Lead Spacing |
7.5mm |
| Operating Temperature Range |
−40°C to +85°C |
Applications
- Surge protection for mains-connected power supplies and AC/DC converters.
- Protection of semiconductor devices, diodes, ICs, triacs and relays from transient spikes.
- Transient suppression in communication and measurement equipment.
- Input protection for industrial controllers, motor drivers and consumer appliances.
Package Contents
- 1x Metal Oxide Varistor 470V 2.5kA DISC 10mm 10D471K.
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