40D431K Metal Oxide Varistor MOV 40mm Disc - 430V V1mA, 660J Energy Rating for Surge Protection
Price:
Negotiable
MOQ:
1000 Pieces
Delivery Time:
2-3 Weeks
Brand:
AMPFORT
Product Description
High Energy Single Disc Metal Oxide Varistor 40D431K
The AMPFORT High Energy Metal Oxide Varistor 40D431K is a 40mm diameter surge protection device designed to handle high peak currents and absorb substantial energy. These varistors feature symmetrical voltage-current characteristics for effective transient voltage suppression.
Product Overview
Metal oxide varistors (MOV/VDR) are voltage-dependent resistors that protect electronic devices from switching pulses and lightning-induced surges. With broad application range and mass production feasibility, they serve protection needs from low to high voltage levels (AC 11V to AC 1000V).
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 40D431K |
| AC Voltage (Vac) | 275V |
| DC Voltage (Vdc) | 350V |
| V1mA Voltage | 430V (387-473V range) |
| Peak Current (Ip) | 300A |
| Clamping Voltage (Vc) | 710V |
| Energy Rating (J) | 660J |
| Capacitance @1KHz | 4900pF |
| Operating Temperature | -55°C to +85°C |
Key Features
- No derating required up to 85°C ambient temperature
- Fast response time of less than 25ns
- High surge current handling capability
- Low clamping ratio with no following-on current
- Solderable electrode finish options
- RoHS and REACH compliant
- Very high energy capability (660J)
- Available in bare disc form for custom packaging
Applications
Ideal for surge protection in consumer electronics, industrial equipment, power supplies, home appliances, telecommunication systems, and semiconductor device protection.
Physical Dimensions
| Dimension | Value (mm) |
|---|---|
| Diameter (D max.) | 45 |
| Height (H max.) | 60.2 |
| Thickness (T max.) | 7.5 |
| Lead Spacing (F) | 25.4 |
Mounting Options
Suitable for screw mounting with pressure contacts or disc stacking configurations. The 40D series handles peak currents up to 40,000A with energy ratings from 370-1,800J.
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Dongguan Ampfort Electronics Co., Ltd.
Location
Floor 5,Changlong Industrial Building,No.6,Jiangnan Road,Jingshan,Chashan Town,Dongguan 523323,China
Contact Person
Annie Fang