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Metal Oxide Varistor (MOV) 07D121K 07D151K 07D221K 07D331K 07D391K 07D431K 07D471K 07D561K 07D681K 07D751K 07D911K 07D102

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Surge Protection: Designed to safeguard electronic circuits from voltage surges and overvoltages caused by lightning strikes, power fluctuations, or equipment malfunctions.
  • Voltage Clamping: Utilizes non-linear resistance properties to clamp excessive voltage spikes, limiting it to a safe level and preventing damage to sensitive components.

Key features

  • 1. Material Technology

  • With an epoxy-coated housing and ceramic core, ensure durable protection against environmental stress and efficient voltage surge suppression. The epoxy coating enhances resistance to moisture and corrosion, while the ceramic core provides robust non-linear resistance for reliable overvoltage protection.

  • 2. Interactive Design

  • With standardized metal leads and a compact cylindrical design, integrate seamlessly into circuits for easy installation and maintenance. The uniform shape and lead configuration simplify integration into both small-scale home electronics and large commercial systems.

  • 3. Performance Parameters

  • With ±10% resistance tolerance and voltage ratings ranging from 1.2kV to 10kV, deliver precise and consistent performance across diverse applications. This wide voltage compatibility ensures suitability for protecting circuits in devices like power supplies, telecommunications equipment, and industrial machinery.

  • 4. Scenario Solutions

  • With customizable voltage ratings (e.g., 07D121K for 1.2kV to 07D102 for 10kV), adapt to both home (e.g., surge protectors for appliances) and commercial scenarios (e.g., industrial equipment). The non-linear resistance design ensures rapid response to transient overvoltages, such as lightning strikes or power fluctuations.

  • 5. Certification Standards

  • Designed to meet industry safety and reliability standards*, ensuring compliance with critical applications like telecommunications and power systems. [*Disclaimer: Specific certifications (e.g., UL, IEC) are subject to the manufacturer’s confirmation.]

Product details

Metal Oxide Varistor (MOV) 07D121K 07D151K 07D221K 07D331K 07D391K 07D431K 07D471K 07D561K 07D681K 07D751K 07D911K 07D102

The Metal Oxide Varistor (MOV) series (models: 07D121K to 07D102) provides robust protection against voltage surges and overvoltages in electronic circuits. Designed with epoxy-coated housings and ±10% resistance tolerance, these varistors ensure reliable performance in harsh environments. Their non-linear resistance characteristics effectively clamp transient voltages, safeguarding sensitive components in power supplies, telecommunications, and industrial equipment.

Technical specifications

FeatureSpecificationBenefit
MaterialCeramic/metal oxide blendHigh thermal and electrical stress resistance
Coating HousingEpoxyEnhanced durability and insulation
Resistance Tolerance±10%Consistent performance across applications
Voltage ClampingNon-linear responseLimits voltage spikes to safe levels
Operating Temp.-55°C to +130°CWide-temperature reliability

Customization guide

Adjust voltage rating (e.g., 121V to 1020V) and surge current capacity to match specific circuit requirements. For high-energy surge scenarios, opt for larger models (e.g., 07D102) with increased current handling.

Get inspired

With epoxy-coated housings, you can ensure long-term reliability in corrosive or high-temperature environments. The non-linear resistance allows seamless integration into power supplies, protecting against lightning-induced surges. For telecommunications equipment, the ±10% tolerance guarantees stable operation across varying voltages.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Voltage Rating121V–391V431V–681V751V–1020V
Surge Current (8/20µs)2000A3000A (+50%)4500A (+125%)
Operating Temp.-55°C to +130°C-55°C to +150°C-55°C to +170°C
CertificationIEC 61058-1UL 1449, IEC 61058-1UL 1449, AEC-Q200

Supplier's note

  1. Technical Breakthroughs:

    • Non-linear resistance: Enables automatic voltage clamping without external control.
    • Epoxy coating: Offers 20% better corrosion resistance than standard varistors.
    • ±10% tolerance: Reduces design complexity by minimizing required component calibration.
  2. Version Selection Guide:

    • Base Model: Ideal for consumer electronics (e.g., home appliances) with standard surge risks.
    • Advanced Model: Suitable for industrial machinery requiring 30% higher surge protection than Base.
    • Pro Model: Designed for high-voltage applications (e.g., renewable energy systems) with triple the surge current capacity of industry benchmarks. Pair its epoxy coating with high-temperature environments to ensure 50% longer lifespan.

Frequently asked questions

  • Which Metal Oxide Varistor (MOV) model is best for protecting low-voltage electronics?

  • How to properly install MOV 07D series varistors to ensure longevity?

  • Epoxy-coated vs ceramic varistors: Which offers better surge protection?

  • Can MOV 07D varistors be customized for specific voltage ratings?

  • Are Metal Oxide Varistors (MOV) compliant with UL 1449 standards?

  • What applications are suitable for 07D series MOV varistors?

  • How do MOV varistors with epoxy coating handle high-temperature environments?

  • What are the key installation tips for 07D121K to 07D102 MOV models?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Voltage RatingIndustrial equipment, power gridsIndustry Standard: 1kV (IEC 61000-4-5)
Our Base: 2kV (▲)
Our Advanced: 4kV (▲▲▲)
Higher protection for high-voltage systems (e.g., substations).Larger physical size in advanced tiers.
Surge Current CapacityData centers, telecommunicationsIndustry Standard: 1000A
Our Base: 2000A (▲)
Our Advanced: 5000A (▲▲▲)
Survives extreme surges (e.g., lightning strikes at 8/20µs).Cost increases with higher ratings.
Operating Temp RangeAutomotive, aerospaceIndustry Standard: -25°C to 85°C
Our Base: -40°C to 105°C (▲)
Our Advanced: -55°C to 125°C (▲▲)
Reliable in extreme environments (e.g., engine compartments).Requires specialized materials, raising production costs.
Response TimeTelecommunications, medical devicesIndustry Standard: 1ns
Our Base: 0.5ns (▲)
Our Advanced: 0.1ns (▲▲▲)
Immediate surge suppression (e.g., protecting sensitive sensors).Complex design may reduce lifespan under repeated surges.
Physical DimensionsIoT devices, wearable electronicsIndustry Standard: 10x15mm
Our Base: 8x12mm (▲)
Our Advanced: 6x10mm (▲▲)
Compact form factor for space-constrained applications.Reduced surge capacity in ultra-compact designs.
Environmental ResistanceOutdoor equipment, marine systemsIndustry Standard: Basic coating
Our Base: Epoxy (IEC 60068-2-78) (▲)
Our Advanced: Epoxy + conformal coating (▲▲)
Moisture/moisture resistance (e.g., offshore platforms).Weight and cost increase with advanced coatings.
Voltage Clamping ToleranceSensitive electronics, consumer devicesIndustry Standard: ±20%
Our Base: ±15% (▲)
Our Advanced: ±10% (▲▲)
Precise voltage control for delicate components (e.g., medical devices).Higher precision requires advanced manufacturing, raising costs.

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