Editorial Technical Reference

Power MOSFET Array

This page explains how Power MOSFET Array is classified within Computer, Electronic and Optical Product Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

A collection of multiple Power MOSFETs integrated into a single package or circuit arrangement.

Product Specifications

Technical details and manufacturing context for Power MOSFET Array

Definition
A Power MOSFET Array is a component that integrates multiple Metal-Oxide-Semiconductor Field-Effect Transistors (MOSFETs) into a single package or circuit arrangement, designed to handle high power levels. In an Active Load system, it serves as the primary switching and current-handling element, simulating various load conditions for testing power supplies, batteries, and other electrical systems by dynamically adjusting resistance and power dissipation. The array typically contains 2 to 8 channels, allowing for higher current handling and improved thermal distribution compared to single MOSFET implementations. Key parameters include drain-source voltage (30–100 V), continuous drain current (5–50 A at 25°C case temperature), power dissipation (2–150 W per package), on-resistance (5–100 mΩ at VGS = 10V and rated current), gate threshold voltage (1–4 V at ID = 250 µA), operating temperature range (-55 to 150°C), input capacitance (500–5000 pF at VDS = 25V, VGS = 0V, f = 1MHz), and switching frequency (100–1000 kHz typical for hard-switching applications). Common package types include SOIC-8, SOIC-16, DIP-8, and DIP-16. The ESD rating (Human Body Model) ranges from 2000 to 8000 V per IEC 61340-3-1, and typical package weight is 0.1–2.0 g. Materials used include silicon (semiconductor), copper (leads/terminals), epoxy molding compound (packaging), and aluminum (heat spreader). These arrays are used in applications requiring precise load simulation, such as power supply testing, battery testing, and electronic load systems. When selecting a Power MOSFET Array, verify model-specific values and standards with the legal manufacturer or supplier, as the ranges provided are directory references and not guarantees of performance for a specific part.
Working Principle
The Power MOSFET Array operates by using voltage applied to the gate terminal to control the current flow between the drain and source terminals. In an Active Load application, a control circuit modulates the gate voltages of multiple MOSFETs in the array to create precise, programmable load characteristics. The parallel configuration allows for higher current handling and better thermal distribution compared to single MOSFET implementations. By adjusting the gate voltages, the array can simulate resistive, constant current, constant power, or dynamic loads, enabling comprehensive testing of power sources.
Common Materials
Silicon (semiconductor), Copper (leads/terminals), Epoxy molding compound (packaging), Aluminum (heat spreader)
Technical Parameters
ParameterTypical rangeNotes & selection driver
Drain-Source Voltage (VDS)30–100 VMaximum voltage between drain and source
Continuous Drain Current (ID)5–50 AAt 25°C case temperature
Power Dissipation (PD)2–150 WMaximum power dissipation per package
On-Resistance (RDS(on))5–100 At VGS = 10V, ID = rated current
Gate Threshold Voltage (VGS(th))1–4 VAt ID = 250µA
Operating Temperature Range-55–150 °CJunction temperature range
Input Capacitance (Ciss)500–5000 pFAt VDS = 25V, VGS = 0V, f = 1MHz
Switching Frequency100–1000 kHzTypical maximum for hard-switching applications
Package TypeSOIC-8, SOIC-16, DIP-8, DIP-16Common package options
Number of Channels2–8Number of MOSFETs in the array
ESD Rating (HBM)2000–8000 VHuman Body ModelIEC 61340-3-1
Weight0.1–2.0 gTypical package weight

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM
  • MOSFET Die Part
    Semiconductor switching element that controls current flow
    Material: Silicon
  • Gate Driver Circuit
    Provides proper voltage levels and timing to control MOSFET switching
    Material: Semiconductor components on PCB
  • Heat Spreader Part
    Distributes thermal energy away from MOSFET dies to prevent overheating
    Material: Aluminum or copper
  • Package Leads Part
    Electrical connections for mounting to circuit board and external connections
    Material: Copper alloy

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Power MOSFET Array.

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
current: Up to 200A (continuous drain current)
voltage: Up to 1000V (drain-source breakdown voltage)
temperature: -55°C to +175°C (junction temperature)
power dissipation: Up to 300W (depending on package and cooling)
switching frequency: Up to 1MHz (depending on device characteristics)
Media Compatibility
✓ DC-DC converters ✓ Motor drive circuits ✓ Switching power supplies
Unsuitable: High-radiation environments (nuclear/space applications without radiation-hardened variants)
Sizing Data Required
  • Maximum load current (A)
  • Operating voltage (V)
  • Required switching frequency (Hz)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Thermal runaway
Cause: Excessive junction temperature due to inadequate cooling, high switching frequency, or poor thermal interface material leading to catastrophic failure.
Gate oxide breakdown
Cause: Voltage spikes exceeding maximum gate-source rating, electrostatic discharge (ESD), or prolonged exposure to high humidity causing insulation failure.
Maintenance Indicators
  • Audible high-pitched whine or buzzing from the array indicating oscillation or unstable switching
  • Visible discoloration, bulging, or charring on MOSFET packages or PCB traces suggesting overheating
Engineering Tips
  • Implement active thermal management with temperature monitoring and derating curves to keep junction temperatures below 80% of rated maximum
  • Use gate protection circuits (snubbers, TVS diodes) and follow strict ESD protocols during handling/installation to prevent voltage transients

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
IEC 60747-8 Discrete Semiconductor Devices - MOSFETs RoHS Directive 2011/65/EU Restriction of Hazardous Substances

Quoted from the published standard.

Manufacturing Precision
  • Gate Threshold Voltage: +/-0.5V
  • On-Resistance (Rds(on)): +/-10%
Quality Inspection
  • Thermal Cycling Test (-55°C to +150°C, 1000 cycles)
  • Electrostatic Discharge (ESD) Sensitivity Test (HBM Class 1B)

Manufacturers of Power MOSFET Array

Manufacturer profiles associated with Power MOSFET Array.

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Frequently Asked Questions

What is the typical number of channels in a Power MOSFET Array?

According to the directory reference, the number of channels typically ranges from 2 to 8. However, the exact count depends on the specific model, so verify with the manufacturer.

What is the maximum power dissipation per package?

The directory lists power dissipation ranging from 2 to 150 watts per package. This value is a reference range; actual power dissipation depends on the specific device and operating conditions.

What package types are commonly available?

Common package options include SOIC-8, SOIC-16, DIP-8, and DIP-16. The actual package type varies by model, so confirm with the supplier.

What is the ESD rating for these arrays?

The ESD rating (Human Body Model) is listed as 2000 to 8000 volts, according to IEC 61340-3-1. This is a reference range; the specific rating for a particular part should be verified with the manufacturer.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification
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