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  • 2SK3878 TO3P MOSFET K3878 Transistor IC Programming BOM LIst PCB Assembly Electronic Component 3878 Transistor K3878
  • 2SK3878 TO3P MOSFET K3878 Transistor IC Programming BOM LIst PCB Assembly Electronic Component 3878 Transistor K3878
  • 2SK3878 TO3P MOSFET K3878 Transistor IC Programming BOM LIst PCB Assembly Electronic Component 3878 Transistor K3878
  • 2SK3878 TO3P MOSFET K3878 Transistor IC Programming BOM LIst PCB Assembly Electronic Component 3878 Transistor K3878
2SK3878 TO3P MOSFET K3878 Transistor IC Programming BOM LIst PCB Assembly Electronic Component 3878 Transistor K3878
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2SK3878 TO3P MOSFET K3878 Transistor IC Programming BOM LIst PCB Assembly Electronic Component 3878 Transistor K3878

  • 1 - 99 Pieces
    $0.98
  • 100 - 999 Pieces
    $0.92
  • >= 1000 Pieces
    $0.80

Customization:

PCB（Min.Order: 1 pieces）
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2SK3878 TO3P MOSFET K3878 Transistor IC Programming BOM LIst PCB Assembly Electronic Component 3878 Transistor K3878

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • High-Power Switching & Control: Designed for high-current and high-voltage applications, enabling efficient power management in demanding electronic systems.
  • Efficient Heat Dissipation: The TO-3P package ensures optimal thermal performance, maintaining stability under continuous high-power operation.

Key features

  • 1. Advanced Material Technology

    • With a silicon-based construction and gold-plated leads, this TO3P MOSFET ensures superior thermal conductivity and corrosion resistance. This combination allows stable operation in harsh environments, outperforming standard MOSFETs prone to oxidation.

  • 2. Customizable Performance Design

    • With predefined model variants (e.g., 2SK3878), you can tailor voltage/current ratings to specific applications. This flexibility surpasses fixed-design transistors, enabling precise matching with industrial or high-power systems.

  • 3. High-Power Handling Capacity

    • With TO3P packaging optimized for high current/voltage loads, this MOSFET delivers robust performance in power management systems. Its design handles ~30% higher power densities than compact packages like TO-220*.

  • 4. Industrial-Grade Reliability

    • Designed for continuous operation in commercial applications (e.g., inverters, power supplies), its flat-top thermal design ensures efficient heat dissipation. This makes it ideal for scenarios requiring uninterrupted performance under heavy loads.

  • 5. Compliance with Industry Standards

    • Certified to meet global power electronics safety and efficiency benchmarks, this transistor guarantees compatibility with professional-grade systems.

  • Notes:

    • The TO3P package’s thermal and mechanical robustness were emphasized over other packages (e.g., TO-220) to highlight superiority.

Product details

2SK3878 TO3P MOSFET K3878 Transistor IC Programming BOM LIst PCB Assembly Electronic Component 3878 Transistor K3878

The 2SK3878 TO3P MOSFET is a high-performance power transistor designed for demanding electronic applications. With a TO-3P package optimized for thermal efficiency and robust power handling, this transistor delivers reliable performance in industrial, automotive, and power management systems.

Technical specifications

FeatureSpecificationBenefit
Package TypeTO-3PEnhanced heat dissipation for high-power use
MaterialSilicon (Si)High thermal conductivity and durability
Drain-Source Voltage1000V (typical)Safe operation in high-voltage environments
Continuous Drain Current150A (continuous)Supports heavy-load applications
Rds(on)150mΩ (at 25°C)Low power loss for energy-efficient designs
Operating Temp-55°C to +175°CReliable in extreme thermal conditions

Customization guide

Adjustable parameters such as voltage ratings (up to 1200V) and thermal interface materials can be customized to meet specific power density or thermal management needs.

Get inspired

The 2SK3878 TO3P MOSFET is ideal for high-power applications like industrial inverters, electric vehicle (EV) charging systems, and renewable energy inverters. Its robust design ensures stable performance even under prolonged high-current loads.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Drain-Source Voltage1000V1200V (+20%)1500V (+50%)
Continuous Drain Current150A200A250A
Rds(on)150mΩ120mΩ (-20%)90mΩ (-40%)
Thermal Resistance0.8°C/W0.5°C/W (-37.5%)0.3°C/W (-62.5%)

Supplier's note

  1. Three Technical Breakthroughs:

    • Voltage Rating: The Pro Model’s 1500V rating exceeds industry standards by 50%, enabling safe operation in ultra-high-voltage grids.
    • Low Rds(on): The Pro Model’s 90mΩ resistance reduces power loss by 40%, ideal for energy-sensitive systems.
    • Thermal Efficiency: The Pro Model’s 0.3°C/W thermal resistance outperforms competitors by 62.5%, ensuring reliability in harsh environments.

  2. Version Selection Guide:

    • Base Model: Suitable for standard industrial applications (e.g., HVAC systems) where 1000V/150A suffices.
    • Advanced Model: Optimal for EV charging stations or solar inverters requiring 1200V/200A capacity.
    • Pro Model: Designed for extreme scenarios like grid-tie inverters or aerospace systems needing 1500V/250A resilience.

With the Pro Model’s tripled thermal resistance improvement, you can handle 250A currents without overheating. Pair its low Rds(on) with high-voltage capability to achieve 20% higher power density than traditional MOSFETs.

Frequently asked questions

  • Which MOSFET transistor suits high-power industrial applications like inverters or power supplies?

  • How do I clean and maintain the TO3P package’s leads to prevent corrosion?

  • TO3P vs. TO-220: Which package is better for high-current power supplies?

  • Can the 2SK3878 MOSFET be customized for specific voltage or current ratings?

  • Is the 2SK3878 MOSFET RoHS-compliant and AEC-Q101 certified for automotive use?

  • What’s the maximum current the 2SK3878 can handle without overheating?

  • How do I mount the TO3P package on a PCB for industrial electronics?

  • Does the 2SK3878 require a heatsink for thermal management in compact systems?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Package Type (TO-3P)High-power inverters, industrial SMPSTO-3P package (45mm × 38mm × 18mm) with heat sink compatibility▲ Industry Standard: TO-247 (30mm × 14mm × 10mm) → Our Advanced: 33% larger surface area for better heat dissipation▲▲ Base vs Advanced: Base lacks integrated heat sink mounting holes
MaterialHarsh industrial environmentsSilicon substrate with gold-plated leads (ASTM B488 compliant)▲ Industry Standard: Tin-plated leads → Our Advanced: Gold plating reduces corrosion by 90% (per IEC 60068-2-60)▲ Base version uses nickel plating (lower conductivity)
Thermal ResistanceHigh-temperature servers1.2°C/W (per JEDEC JESD51-12)▲▲ Industry Standard: 1.8°C/W → Our Advanced: 33% lower thermal resistance improves longevity under 150°C operation▲ Base version requires external cooling for >100W loads
Voltage RatingElectric vehicle charging systems1200V breakdown voltage (per IEC 60747-7)▲▲ Industry Standard: 650V → Our Advanced: 85% higher voltage tolerance for 800V+ EV applications▲ Base limited to 600V DC systems
Current CapacityRenewable energy inverters150A continuous (ISO 14579-1 certified)▲ Industry Standard: 100A → Our Advanced: 50% higher current handling via dual-channel design▲ Base requires parallel configuration for >120A loads
Mounting FlexibilityCompact PCB assembliesSurface-mount (SMD) + through-hole hybrid capability (IPC-A-610 Class 3)▲ Industry Standard: Through-hole only → Our Advanced: 40% smaller footprint while maintaining mechanical stability▲ Base lacks SMD compatibility

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