Power Supply Basics: Brick Module Sizes, Advantages, and Industrial Applications

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Brick module power supplies are standardized DC/DC converters widely used in industrial electronics. The "brick" form factors—full, half, quarter, and eighth—serve as universal industry standards defining physical dimensions, mounting footprints, and power ratings. These standardized sizes streamline component selection and PCB layout, significantly accelerating industrial power system development.

Standard Brick Power Supply Dimensions

The industry relies on fixed dimensions for brick-type power supplies to ensure cross-manufacturer compatibility Four standard brick power module sizes: full, half, quarter, and eighth-brick.across mainstream applications like industrial control and telecommunications. The standard parameters are:

  • Full-Brick: 116.8 x 61.0 x 12.7 mm
  • Half-Brick (1/2 Brick): 61.0 x 57.9 x 12.7 mm
  • Quarter-Brick (1/4 Brick): 57.9 x 36.8 x 8.1 mm
  • Eighth-Brick (1/8 Brick): 57.9 x 22.9 x 10.4 mm

Industry Note: Driven by continuous advancements in miniaturization technology, Quarter-Brick modules have become the market mainstream, offering an optimal balance of compact size and stable performance.

As industrial equipment operates in increasingly harsh environments, the market demands higher power density and conversion efficiency. Consequently, the industry is shifting toward miniaturized, high-efficiency products, gradually reducing the reliance on larger full- and half-brick modules. Current technical hotspots in brick power supply design include:

  • Wide and narrow input voltage adaptation
  • Regulated and unregulated output options
  • Wireless application compatibility
  • Power over Ethernet (PoE) integration

Core Advantages Over Discrete Power Circuits

Compared to traditional discrete power designs, brick modules offer significant engineering and operational benefits:

  • Simplified Design & Faster Time-to-Market: They require minimal peripheral discrete components to build a complete power system. With various I/O specifications available, engineers can easily stack or parallel multiple modules for multi-channel power, drastically shortening development cycles.
  • Upgrade Flexibility: Designers can scale or upgrade product parameters simply by swapping or paralleling suitable power modules, eliminating the need for complete circuit redesigns.
  • Superior Thermal Management: Featuring an integrated heatsink and casing structure, these modules provide highly efficient conductive heat dissipation. This effectively controls operating temperatures and boosts overall system stability.
  • High Reliability: Fully automated manufacturing processes ensure consistent product quality, making them highly reliable for mission-critical applications.

Key Industrial Applications

Brick module power supplies act as the core power solution for modern electronic equipment, playing an irreplaceable role in high-precision and high-reliability scenarios. Key application sectors include:

  • Heavy Industry & Infrastructure: Industrial automation, power communications, and rail transit.
  • Mission-Critical Sectors: Aerospace, military equipment, and precision instrumentation.
  • Commercial & Consumer: Advanced telecommunications and high-end household appliances.