Editorial Technical Reference

Central Processing Unit (CPU) Board

This page explains how Central Processing Unit (CPU) Board 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

The primary computational and control circuit board within a DP Controller that executes program instructions and manages data processing.

Representative product image. Confirm appearance and specifications with the manufacturer.

Product Specifications

Technical details and manufacturing context for Central Processing Unit (CPU) Board

Definition
The Central Processing Unit (CPU) Board is the core computational component of a DP (Distributed Processing) Controller system. It houses the microprocessor, memory modules, and supporting circuitry that execute control algorithms, process sensor inputs, generate output signals, and coordinate communication with other system components. As part of the DP Controller, it functions as the 'brain' responsible for real-time decision-making and process automation. The board is designed for industrial environments, with a processor clock speed ranging from 1.2 to 2.5 GHz, RAM capacity from 4 to 32 GB, and flash storage from 16 to 256 GB. It operates within a temperature range of -40 to 85 °C, relative humidity of 10 to 90% (non-condensing), and accepts a supply voltage of 9 to 36 V DC. Power consumption is between 15 and 60 W. The board dimensions vary from 100×160 mm to 233×160 mm, with a weight of 0.5 to 1.5 kg. It offers ingress protection ratings from IP54 to IP65, and has a mean time between failures (MTBF) of 50,000 to 100,000 hours. Materials include FR-4 PCB substrate, solder mask, copper traces, silicon microprocessor, ceramic capacitors, and epoxy resin. The board is intended for use in distributed processing systems, where it coordinates with other modules via communication interfaces such as fieldbuses or Ethernet. It processes analog and digital signals through I/O interfaces and uses onboard memory for program storage and temporary data. Clock signals synchronize operations to ensure deterministic real-time performance. For specific models, verify all parameters and standards with the legal manufacturer or supplier.
Working Principle
The CPU Board operates by fetching instructions and data from memory via its bus architecture. The microprocessor decodes and executes these instructions, performing arithmetic, logic, control, and input/output operations. It interacts with other controller modules through communication interfaces (like fieldbuses or Ethernet), processes analog/digital signals via I/O interfaces, and utilizes onboard memory for program storage and temporary data. Clock signals synchronize all operations to ensure deterministic real-time performance required for industrial control.
Common Materials
FR-4 PCB substrate, Solder mask, Copper traces, Silicon microprocessor, Ceramic capacitors, Epoxy resin
Technical Parameters
ParameterTypical rangeNotes & selection driver
Processor Clock Speed1.2–2.5 GHzHigher speeds improve processing throughput.
RAM Capacity4–32 GBDetermines multitasking and data buffering capability.
Flash Storage16–256 GBStores firmware and application data.
Operating Temperature-40–85 °COutside this range, performance may degrade or fail.IEC 60068-2-1, IEC 60068-2-2
Supply Voltage9–36 V DCWide input range for industrial power systems.
Power Consumption15–60 WAffects thermal management and power supply sizing.
Relative Humidity10–90 % RHNon-condensing; higher humidity may cause corrosion.IEC 60068-2-78
Ingress ProtectionIP54–IP65Protects against dust and water jets.IEC 60529
Board Dimensions100×160–233×160 mmStandard form factors for industrial computers.
Weight0.5–1.5 kgAffects mounting and mechanical design.
MTBF50000–100000 hReliability indicator for continuous operation.IEC 61709

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
  • Circuit Board
    The board itself: the substrate and copper traces that carry power and signals between the parts on it.
  • Microprocessor
    Executes control program instructions and performs calculations
    Material: Silicon
  • RAM Modules Part
    Provides volatile memory for temporary data storage during program execution
    Material: Silicon with metal contacts
  • Flash Memory Part
    Stores the control program and firmware persistently
    Material: Silicon
  • Voltage Regulators
    Convert and stabilize input power to required voltages for different components
    Material: Semiconductor materials with copper heat sinks
  • Communication Interface Chips Part
    Handle data exchange with other controller modules and field devices
    Material: Silicon with plastic packaging

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Central Processing Unit (CPU) Board.

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
pressure: Atmospheric (sealed enclosure required for non-atmospheric environments)
other spec: Humidity: 10-90% non-condensing, Vibration: 5-500 Hz at 2G max, Power Supply: 12V DC ±10%
temperature: 0°C to 70°C (operational), -40°C to 85°C (storage)
Media Compatibility
✓ Clean air environments ✓ Temperature-controlled enclosures ✓ Low-dust industrial control cabinets
Unsuitable: Direct exposure to conductive fluids, corrosive gases, or abrasive particulates
Sizing Data Required
  • Required processing power (MIPS/GHz)
  • I/O interface types and quantity needed
  • Available physical space and mounting constraints

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Thermal stress cracking
Cause: Repeated heating and cooling cycles from CPU operation and environmental temperature fluctuations cause expansion/contraction of solder joints and board materials, leading to micro-cracks and eventual failure.
Electromigration
Cause: High current density through microscopic copper traces over time causes metal atoms to migrate, creating voids (opens) and hillocks (shorts), exacerbated by elevated temperatures and high-frequency operation.
Maintenance Indicators
  • Intermittent system crashes or blue screens during high computational loads, indicating potential thermal or power delivery issues
  • Visible bulging or leaking of electrolytic capacitors on the board, often accompanied by a faint burning odor
Engineering Tips
  • Implement active cooling with properly sized heatsinks and fans to maintain CPU temperature below 70°C during operation, and ensure adequate case ventilation to prevent heat buildup around the board
  • Use high-quality, stable power supplies with proper voltage regulation and filtering to prevent electrical transients and ensure clean power delivery to all board components

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
CE Marking - EU Safety, Health, and Environmental Protection

Quoted from the published standard.

Manufacturing Precision
  • PCB Trace Width: +/-0.02mm
  • Component Placement Accuracy: +/-0.1mm
Quality Inspection
  • Automated Optical Inspection (AOI)
  • In-Circuit Test (ICT)

Manufacturers of Central Processing Unit (CPU) Board

3 companies list this product among what they make. Company figures are quoted from each company's own website; every card states where the relationship came from.

EFPCB
Guangdong, CN
Listed on the company's own website · profile compiled by CNFX from public sources
ShenZhen Antenk Electronics Co,Ltd.
Beijing, CN
Listed on the company's own website · profile compiled by CNFX from public sources
ULIKE CIRCUIT
Guangdong, CN
Also makes: Control Circuit Board, Rf Pcb, Metal Core PCB and 8 more
Listed on the company's own website · profile compiled by CNFX from public sources

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Technical documentation
Request current drawings, revision history, and a signed specification sheet.
Manufacturing capability
Verify equipment lists, process limits, capacity, and representative production evidence.
Inspection readiness
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Supplier transparency
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Frequently Asked Questions

What is the CPU Board's role in a DP Controller?

The CPU Board is the central processing unit of a DP Controller, executing control algorithms, processing sensor inputs, generating output signals, and coordinating communication with other system components.

What are the typical operating temperature and humidity ranges?

The board operates in a temperature range of -40 to 85 °C and relative humidity of 10 to 90% (non-condensing), as per IEC 60068-2-1, IEC 60068-2-2, and IEC 60068-2-78 standards.

What power supply voltage is required?

The board accepts a supply voltage of 9 to 36 V DC, suitable for industrial power systems.

What is the expected reliability (MTBF)?

The mean time between failures (MTBF) is 50,000 to 100,000 hours, based on IEC 61709. Actual values depend on the specific model and operating conditions.

Data Basis

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

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.
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