Kingtronics® XKT MOV Series - Protecting Power Systems with Reliable Surge Clamping

Kingtronics International Company — Power Protection Expertise

Kingtronics® XKT MOV Series — Reliable Surge Clamping for Modern Power & LED Designs

XKT MOV series — fast, repeatable clamping against lightning and switching surges.

Stop damage from transient surges. The XKT Metal Oxide Varistor (MOV) Series clamps lightning- and switching-induced spikes within microseconds to keep SMPS, LED drivers, and industrial control boards operating safely and reliably.

Quick Selection — Match Disc Size to Use Case

5D I/O, control lines, modest surges
7D General SMPS inputs, consumer power
10D Adapters, LED drivers with higher surge risk
14D Industrial modules, motor/relay suppression
20D Heavy-duty mains, severe surge environments

Key Advantages for Design Engineers

• Wide operating voltage: 18 V to 1800 V covers low-voltage rails up to AC mains.
• Multiple disc sizes: 5D, 7D, 10D, 14D, 20D options scale surge capability and footprint.
• High surge endurance: 20D series up to 6,500 A (8/20 µs) and 606 J (10/1000 µs) on top variants.
• Compliance: RoHS & REACH compliant for global deployments.

Specs Snapshot — Proven by Data

Example XKT20D162K: Varistor Voltage ≈ 1600 V (±10%), Max Energy 606 J (10/1000 µs), Peak Current 6,500 A (8/20 µs).

Where XKT MOVs Excel

Ideal for AC/DC power supplies, LED lighting, telecom rails, and industrial automation. Broad voltage coverage supports both 110 V and 220 V regions; size options let you trade off footprint vs. surge capability for cost-effective protection.

XKT portfolio from 5D to 20D — choose footprint vs. surge capability for your design.

Environmental Compliance & Quality

Every XKT MOV is RoHS & REACH compliant and validated through electrical, surge, and thermal checks for long-term reliability in real applications.

FAQs: Selecting & Applying XKT MOVs

How do I choose the right XKT MOV voltage?

Pick V_1mA so the MOV stays non-conductive at nominal line but clamps below the protected device’s absolute maximum. The XKT portfolio spans 18–1800 V to cover low-voltage rails through AC mains.

When should I step up from 10D to 14D or 20D?

Move to larger discs when surge tests (e.g., IEC 61000-4-5) require higher peak current or energy. 14D/20D provide substantial headroom; 20D handles up to 6,500 A and ~606 J on top variants.

Are XKT MOVs certified for environmental regulations?

Yes. The full series is RoHS and REACH compliant.

Explore the complete Kingtronics XKT MOV Series and find the optimal clamping device for your next design.

Explore XKT Series

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