10D112K Alternative / Equivalent / Replacement

YINT Electronics — 10mm Metal Oxide Varistor, 1100V

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1. Introduction

The 10D112K is a 10mm disc metal oxide varistor (MOV) with a varistor voltage of 1100V. It protects high-voltage AC and DC circuits from overvoltage transients caused by lightning, switching surges, and grid disturbances. The rated AC voltage is 680V and DC voltage is 895V.

The 10D112K follows the industry-standard 10D high-voltage varistor series used by Littelfuse, Epcos (TDK), Panasonic, Meritek, Joyin, and other manufacturers. YINT Electronics manufactures this model as a fully compatible replacement with identical electrical specifications. The device responds in under 25 nanoseconds and delivers up to 2500A peak surge current (8/20µs waveform).

YINT manufactures the 10D112K using high-purity zinc oxide ceramic formulations with automated disc sorting and surge current sampling on every production batch. This manufacturing discipline ensures each 10D112K meets its 1100V varistor voltage and 2500A surge current rating over the full -40C to +85C operating range. YINT 19 years of varistor manufacturing experience ensures reliable high-voltage protection across every production lot.

Engineers searching for a 10D112K replacement or 10D112K alternative can specify the YINT 10D112K as a direct drop-in equivalent. It offers tight varistor voltage tolerance for high-voltage power systems, three-phase AC protection, and industrial equipment operating at 480V AC and above.

2. Product Overview

The 10D series covers varistor voltages from 18V to 1800V in a compact 10mm disc package. The high-voltage variants like 10D112K are specifically designed for 400-480V AC three-phase systems, 600-800V DC bus protection, and industrial power distribution where elevated voltage ratings are required.

The 10D112K is a 1100V rated variant for protecting 680V AC or 895V DC circuits. Its high varistor voltage lets it sit across high-voltage lines without conducting under normal operating conditions. When an overvoltage transient occurs, it clamps the surge by conducting current and absorbing energy through its zinc oxide ceramic element, protecting downstream high-voltage components from damage.

YINT produces the full 10D series from 18V through 1800V. This complete voltage coverage lets customers source all 10mm disc varistor needs from one manufacturing partner. The 10D112K uses high-quality zinc oxide ceramic elements with tight process controls for consistent varistor voltage and energy absorption across every production lot.

Every YINT 10D112K varistor undergoes 100% voltage classification and surge current sampling per IEC 61051-1 standards. This ensures tight V1mA tolerance at 1100V and consistent clamping performance across all production batches. YINT's quality-driven manufacturing delivers reliable high-voltage protection for three-phase and industrial power systems.

3. Key Features

• Disc Diameter: 10mm — Compact radial leaded package for standard PCB mounting
• Varistor Voltage: 1100V — Tight tolerance of ±10%
• AC Voltage Rating: 680V — Suitable for 400-480V AC three-phase systems
• DC Voltage Rating: 895V — For high-voltage DC bus and traction applications
• Peak Surge Current: 2500A — 8/20µs waveform, single pulse
• Nominal Surge Current: 1500A — 8/20µs waveform, rated
• Max Energy Absorption: 110J — 2ms waveform typical
• Response Time: < 25ns — Fast clamping for transient events
• Operating Temperature: -40°C to +85°C — Wide industrial range
• RoHS Compliant — Lead-free and environmentally friendly

4. Specifications

5. Cross Reference

The 10D112K is an industry-standard high-voltage varistor produced by major manufacturers worldwide. YINT's 10D112K is a direct drop-in replacement with identical or tighter electrical specifications. Engineers searching for a 10D112K equivalent can confidently choose YINT as a universal cross-reference option.

6. Comparison with Similar Models

Engineers often compare the 10D112K with nearby voltage variants and larger disc sizes. The table below shows key differences to help select the right 10D112K alternative for each design.

The 10D112K provides high-voltage overvoltage protection in a compact 10mm disc package. It is ideal for 400-480V AC three-phase systems where each phase-to-ground protection requires 680V AC rated varistors. For higher surge current in high-voltage systems, the 14D112K offers 6000A Imax in a larger 14mm disc. Choose the 10D112K when board space is limited and your high-voltage application requires 680V AC rated protection.

YINT stocks the 10D112K in full production quantities with short lead times. Volume pricing and free samples are available for evaluation. Contact YINT for datasheets and cross-reference verification.

7. Applications

• Three-phase 400-480V AC power distribution surge protection (phase-to-ground)
• Industrial motor drive and VFD DC bus overvoltage clamping at 600-800V DC
• Solar inverter and wind turbine high-voltage DC bus protection
• Electric vehicle charging station AC input and DC output protection
• UPS and backup power system high-voltage DC rail clamping
• Industrial power supply 680V AC input transient suppression
• Railway signaling and traction power equipment protection
• HVAC large chiller and compressor three-phase power protection
• Water treatment and pumping station 480V AC main power
• Test and measurement equipment high-voltage input protection
• High-voltage battery pack and energy storage system DC protection
• Medical imaging X-ray generator power input clamping
• Large scale battery energy storage system HV DC bus protection

8. Why Choose YINT

• 19+ years of manufacturing expertise in circuit protection since 2006
• 40+ patents and certifications with robust quality control
• Global sales network serving North America, Europe, Asia, and Latin America
• Full 10D series from 18V to 1800V for one-stop disc varistor sourcing
• Direct OEM replacement — pin-to-pin compatible with all major brands
• Engineering team available for cross-reference verification and support
• Free samples for testing and qualification upon request
• Direct manufacturer pricing with volume discounts available
• RoHS and REACH compliant with UL 1449 recognized component design
• UL 1449 recognized varistor component for high-voltage power systems

9. Ordering Information

10. FAQ

Q1: Is YINT 10D112K a direct replacement for Littelfuse V10E680P or Epcos B72210S0681K101?
A: Yes. YINT 10D112K has identical electrical specs and 10mm disc dimensions. It is a direct drop-in replacement.

Q2: What does "112K" mean in 10D112K?
A: "112" means 11 × 10² = 1100V varistor voltage. "K" indicates ±10% tolerance.

Q3: What is the maximum AC voltage for 10D112K?
A: 680V AC. This covers 400-480V three-phase systems for phase-to-ground protection with sufficient safety margin.

Q4: What is the response time of 10D112K?
A: Less than 25 nanoseconds for fast clamping of high-voltage transients.

Q5: Can 10D112K be used for single-phase 480V AC protection?
A: Yes. 10D112K is suitable for single-phase 480V AC lines (phase-to-neutral) with its 680V AC rating.

Q6: How does 10D112K differ from 10D471K?
A: 10D112K has 1100V varistor voltage for 680V AC systems. 10D471K has 470V varistor voltage for 300V AC systems. They are not interchangeable.

Q7: Does YINT provide free samples?
A: Yes. Contact YINT with your project details for sample requests and qualification support.

11. Conclusion

YINT Electronics' 10D112K is a reliable high-voltage metal oxide varistor for 680V AC systems requiring 2500A surge current capability. It delivers 1100V varistor voltage with a compact 10mm disc footprint for three-phase power distribution, motor drives, and industrial high-voltage equipment protection.

With 19+ years of varistor manufacturing experience, YINT delivers the 10D112K with competitive pricing, short lead times, and full technical support. Every order benefits from mature ceramic processing and rigorous quality control refined over nearly two decades of circuit protection manufacturing.

Contact YINT Electronics at global@yint.com.cn for datasheets, samples, or pricing. Our engineering team is ready to assist with cross-references and application support.