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.

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© Kingtronics International Company — High Reliability Components for Power Electronics

SMD & Radial MLCCs for Power, RF, and Industrial Circuits

Kingtronics International Company — Reliable MLCC Solutions for Global Engineers

Multilayer Ceramic Capacitors (MLCCs) are vital for stability, EMI filtering, and precise energy control in electronic systems. To address global lead time challenges, Kingtronics^® offers SMD and Radial MLCCs with fast delivery, stable supply, and highly competitive pricing — providing engineers a trusted alternative to leading global brands.

1. Why Stable MLCC Supply Matters

Industry studies show that MLCC availability directly impacts production schedules and cost control (ScienceDirect: Ceramic Capacitors Overview). Kingtronics ensures consistent raw material procurement, automated production, and predictable lead times, even during component shortages, supporting uninterrupted production for OEM and ODM partners worldwide.

2. Comparing SMD and Radial MLCC Structures

LKT — SMD Chip MLCC

The LKT series provides reliable capacitance stability in compact packages, ideal for consumer electronics, telecom boards, and computing systems requiring miniaturized components and reflow compatibility.

MKT — Radial (Leaded) MLCC

The MKT series uses a leaded, through-hole design with high mechanical endurance, suitable for industrial control modules, LED drivers, and power boards. Its standardized lead spacing supports automated insertion and long-term durability.

LKT — View LKT Product Page
MKT — View MKT Product Page

3. Advanced MLCCs for High Voltage and RF Systems

HKT — High Voltage MLCC

The HKT series supports voltages up to 5,000 V, featuring superior insulation resistance and dielectric reliability. Designed for power converters, lighting, and industrial control systems, HKT offers competitive pricing and short lead time, serving as a dependable alternative to globally known high-voltage MLCC brands.

BKT — High-Q / Low ESR MLCC

The BKT series provides Q-values above 2000 and ultra-low ESR, optimized for RF amplifiers, antennas, and microwave modules. It ensures minimal signal loss and high frequency stability for 3 GHz-class designs, with proven consistency across production lots.

HKT — View HKT Product Page
BKT — View BKT Product Page

Need fast quotes and stable lead time? Talk to our team.

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4. Technical Highlights & Key Benefits

• Voltage Range: 25 V – 5,000 V
• Dielectric Options: NP0 (C0G), X7R, X5R
• Capacitance Range: 1 pF – 4.7 µF
• Operating Temperature: −55 °C ~ +125 °C
• High-Q, Low ESR, Excellent Thermal Stability
• Fast Delivery · Stable Supply · Competitive Price

5. Reliable Partner for Global OEM & ODM

Every Kingtronics MLCC is manufactured under ISO-certified facilities with automated testing for dielectric strength and capacitance tolerance. With global logistics and flexible MOQs, Kingtronics helps engineers reduce design cycle time while maintaining stable component availability — ensuring predictable sourcing and project continuity.

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References (Open Access)

• ScienceDirect – Ceramic Capacitors Overview
• IEEE – Performance Analysis of High-Q MLCCs in RF Systems
• ResearchGate – Ceramic Dielectric Materials for High-Voltage Capacitors

X2 Capacitor 310VAC – Compare Kingtronics FKT-MX vs EPCOS, Kemet, Pilkor

Kingtronics International Company — Trusted Partner in EMI Suppression

When comparing X2 safety film capacitors, engineers prioritize reliability, certification, and delivery stability. Kingtronics FKT-MX (metallized polypropylene, 310 VAC) is a trusted alternative to Kemet R46 and EPCOS B32921–B32924, offering certified safety and consistent EMI suppression performance.

Key Specifications (at a glance)

The FKT-MX series is rated at 310 VAC and spans 0.0047 µF – 10 µF. It holds UL / ENEC / VDE approvals compliant with IEC 60384-14 for across-the-line EMI suppression. Designed for input filters in power supplies, lighting, and industrial controllers, it targets low loss ≤ 0.3% and thermal stability −40 °C ~ +110 °C.

Side-by-Side Cross-Reference

X2 Capacitors (310 VAC class) — Model Cross-Reference

Kingtronics Model	Kemet	EPCOS	Pilkor	Evox Rifa	Vishay	Wima	Iskra	Panasonic
FKT-MX (310 VAC)	R46	B81130 / B32921–B32924	PCX2 337 / PCX2 339	PHE 840M / PHE 840E	MKP 3382 / MKP 3392	MP3 X2 / MKP X2	KNB 153X / KNB 156X	ECQU

Performance & Cost Advantages

Compared with competing families, FKT-MX delivers equivalent reliability at a more accessible price point. Its polypropylene dielectric ensures stable capacitance over temperature and time, making it a cost-effective drop-in for EPCOS and Kemet. Kingtronics also maintains a predictable ~4-week production lead time backed by stable capacity — ideal for manufacturers needing schedule certainty.

Watch the Product in Action

Overview of FKT-MX design and EMI suppression use cases.

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For complete technical details, sizes, and part selection, download the full catalog or visit our product page.

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x2 film capacitor 310vac iec 60384-14 certified emi suppression capacitor ul enec vde x2 polypropylene mkp x2

Kingtronics SMD Electrolytic Capacitors｜Low Impedance & Long Life for Power Supply

Kingtronics SMD electrolytic capacitors combine low impedance, long life up to 10,000H, low ESR, and AEC-Q automotive grade options. Widely applied in power supplies, LED lighting, automotive electronics, and consumer electronics — a reliable alternative to Panasonic, Nichicon, and Rubycon.

Why Choose Kingtronics SMD Capacitors?

Engineers need capacitors that balance performance, cost, and availability. Kingtronics SMD electrolytic capacitors deliver 10,000H lifetime, stable low ESR and low impedance characteristics, plus AEC-Q automotive grade reliability. Applications include LED drivers, industrial power supplies, automotive ECU/infotainment/chargers, and consumer electronics such as TVs, chargers, and adapters.

Kingtronics SMD Capacitors – Long Life & Low Impedance

Inside the Factory – Production Process

See how Kingtronics produces long life & low impedance SMD capacitors in our factory:

Get Samples & Catalog

Request free samples and download our full catalog to start your design-in process today.

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• 🔗 Kingtronics SMD Capacitor Product Page
• ▶️ Production Process (YouTube)

Kingtronics SMD electrolytic capacitors — reliable, efficient, and tested for modern electronics.

Backup Power Super Capacitors｜DA + DM Series by Kingtronics

Kingtronics International Company — Inspired by Innovation

Looking for a backup power super capacitor that combines performance with competitive price? Kingtronics DA + DM Series offers reliable RTC capacitor supplier solutions for memory backup, lighting, and UPS modules. Engineers can buy super capacitors with confidence, backed by fast delivery and RoHS compliance.

Why Choose Kingtronics DA + DM?

DA Series (Coin Type 5.5V) delivers small size with high capacity — an ideal memory backup capacitor for RTC, smart meters, and digital devices. DM Series (Combined Type 5.5V / 7.5V) features low ESR and a long life cycle, widely trusted in UPS capacitor and industrial applications.

Datasheet & Price

Access the DA DM capacitor datasheet and request the best supercapacitors price directly from Kingtronics. OEM/EMS partners worldwide already trust our stable supply chain.

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▶ Watch: How DA + DM Super Capacitors Secure Backup Power

With Kingtronics DA + DM, you get a proven super capacitors supplier that delivers affordable solutions, stable sourcing, and long-term reliability. Choose smart, reduce costs, and keep your designs running without interruption.

Wireless Device Essentials – KKT Trimmer, BKT RF MLCC, QKT Quartz

Wireless products—from compact remotes to WLAN nodes and IoT sensors—rely on three building blocks: tuning to hit the target frequency, filtering to keep signals clean, and a precise clock to stay in sync. Splitting those across vendors often adds qualification churn and lead-time variance.

Kingtronics provides a one-stop path: KKT for frequency trim (SMD trimmer capacitor), BKT for efficient RF filtering (High-Q MLCC), and QKT for stable timing (quartz crystal). Explore the product pages below.

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KKT — SMD Trimmer Capacitor

Dial in frequency, correct drift, and lock the RF link with compact 3 mm trimmers.

RF tuning / variable High stability 3 mm SMD

BKT — High-Q RF MLCC

Low ESR, low loss parts for clean filtering, matching, and higher RF efficiency in tight layouts.

C0G / NP0 Matching / bypass High Q

QKT — Quartz Crystal

Tight-tolerance references for long-term timing stability across MCU and oscillator designs.

Tight tolerance Low aging SMD / DIP

Ready to evaluate? Request datasheets, samples, or lead-time details via our official contact page.

Contact Sales / Samples View KKT Product Page

Motor Capacitor Guide – Kingtronics CBB60, CBB61, CBB65 with 1µF–100µF, 450VAC, CE, RoHS, REACH Certified

Kingtronics International Company — Inspired by Innovation

A practical motor capacitor guide with a concise motor capacitor datasheet view of CBB60 / CBB61 / CBB65 — optimized for AC capacitor 450VAC needs and global compliance (CE motor capacitor, RoHS motor capacitor) in capacitor for induction motor applications.

In this motor capacitor guide, we explain how Kingtronics CBB60, CBB61, and CBB65 map to common scenarios — from small appliances to HVAC to compressors — and how to read the essential lines of a motor capacitor datasheet. We also include a high-level comparison with competitors and a selection framework so you can source the right capacitor for induction motor quickly and confidently.

Watch the Demo Video

Prefer a quick visual overview? Watch our short demo explaining where CBB60, CBB61, and CBB65 fit best. It’s the fastest way to grasp the differences before you dive into the motor capacitor datasheet.

At-a-Glance: Which Series Fits Which Job?

CBB61 Small Appliances

Compact form factor for fans and washers. Low D.F., high I.R., certified as CE motor capacitor and RoHS motor capacitor where required.

CBB60 HVAC / General

Wide 1µF–100µF range for refrigerators and air-conditioner motors. Excellent choice when you need a stable AC capacitor 450VAC.

CBB65 Compressors / Industrial

Heavy-duty build with 370/450VAC ratings. The dependable capacitor for induction motor in compressors and industrial drives.

CBB60 / CBB61 / CBB65 — quick visual overview

Motor Capacitor Datasheet — Key Specs That Matter

Across the three series, Kingtronics uses self-healing polypropylene film with low dissipation factor and high insulation resistance. The portfolio spans 1µF–100µF and up to 450VAC, meeting the needs of residential and industrial markets. Below is a compact motor capacitor datasheet view you can reference:

Model	Capacitance Range	Rated Voltage	Main Applications	Key Features
CBB61	1–20 µF	250V / 450V AC	Small household appliances (fans, washing machines)	Compact size, low D.F., high I.R., global compliance (CE/RoHS)
CBB60	1–100 µF	250V / 450V AC	Refrigerators, air conditioners, general motors	Good self-healing, strong surge tolerance, versatile range
CBB65	2–100 µF	370V / 450V AC	Compressors, industrial induction motors	High safety, higher current capability, heavy-duty design

Comparison with Competitors — Where the Value Comes From

When you run a Comparison of Kingtronics Motor Capacitors with competitors – CBB60, CBB61, CBB65 up to 450VAC, you’ll often find that equivalent compliance (CE motor capacitor, RoHS motor capacitor, REACH) can come at a premium elsewhere. Kingtronics balances spec integrity and pricing, giving OEMs and distributors a cost-effective path to qualified AC capacitor 450VAC parts without compromising reliability.

Market Demand & Real-World Context

Energy-efficient appliances and industrial automation are sustaining demand for certified capacitors with predictable supply. Retail orders may land quickly while repeat cycles take longer; stocking multiple models across the 1µF–100µF range helps distributors react faster. For design teams, a single source that spans small appliances (CBB61), HVAC (CBB60), and compressors/industrial (CBB65) simplifies qualification and purchasing.

Application Guidance — Picking the Right Capacitor for Induction Motor

If space and cost are critical in a household fan or washer, start with CBB61. If you need robustness in refrigerators or air-conditioner motors, the broader range and stability of CBB60 usually fits best. For compressors and other heavy-load capacitor for induction motor cases, CBB65 provides the necessary voltage headroom and current capability.

FAQ

What is the best AC capacitor 450VAC choice for refrigerators?

CBB60 is widely used due to its durability and wide capacitance range, aligning with AC capacitor 450VAC requirements in refrigeration.

Which series fits air-conditioner induction motors?

CBB60 again, as a stable capacitor for induction motor in HVAC, balancing cost, availability, and performance.

What should I pick for compressors and industrial drives?

CBB65 is the heavy-duty option with higher voltage ratings (370/450VAC) and stronger current handling for industrial reliability.

When is CBB61 the better choice?

Where form factor and cost are sensitive — fans, compact washers — CBB61 provides low D.F., high I.R., and adequate capacitance.

Conclusion & CTA

This motor capacitor guide summarizes the practical differences among CBB60, CBB61, and CBB65 so you can move quickly from specification to sourcing. Each series aligns with the essentials found in a motor capacitor datasheet and supports global markets as CE motor capacitor and RoHS motor capacitor options.

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