Editorial Technical Reference

Sensor Interface Board

This page explains how Sensor Interface 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

A printed circuit board that provides electrical interface and signal conditioning between sensors and control systems.

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Product Specifications

Technical details and manufacturing context for Sensor Interface Board

Definition
The Sensor Interface Board is a specialized electronic component within the Control & Sensor Package, serving as the intermediary connection point between various sensors and the main control unit. It manages signal acquisition, conditioning, conversion, and transmission, ensuring accurate data flow from sensors to processing systems while providing necessary power and protection circuits. The board receives analog or digital signals from connected sensors, performs signal conditioning (amplification, filtering, isolation), converts signals to appropriate formats (A/D conversion when needed), and transmits processed data to the control system via communication protocols. It also provides regulated power to sensors and includes protection against electrical noise, surges, and interference. Key parameters include a supply voltage range of 9–36 V DC, 8–16 input channels, 4–20 mA current loop input, 0–10 V voltage output, accuracy of ±0.1% FS, operating temperature -40 to 85 °C, storage temperature -55 to 125 °C, relative humidity 5–95% non-condensing, ingress protection IP54–IP65 per IEC 60529, isolation voltage 1500 V DC, FR-4 board material per IPC-4101, board thickness 1.6 mm per IPC-6012, dimensions 100×80 mm, and weight 150 g. The board is designed for industrial environments, with a compact footprint suitable for DIN rail mounting. It is essential to verify model-specific values and standards with the legal manufacturer or supplier before procurement.
Working Principle
The board receives analog or digital signals from connected sensors, performs signal conditioning (amplification, filtering, isolation), converts signals to appropriate formats (A/D conversion when needed), and transmits processed data to the control system via communication protocols. It also provides regulated power to sensors and includes protection against electrical noise, surges, and interference.
Common Materials
FR-4 PCB substrate, Copper traces, Electronic components (ICs, resistors, capacitors, connectors)
Technical Parameters
ParameterTypical rangeNotes & selection driver
Supply Voltage9–36 V DCWide input range for industrial power rails
Number of Input Channels8–16 channelsConfigurable for various sensor types
Input Signal Type4–20 mACurrent loop for industrial sensors
Output Signal Type0–10 VVoltage output to PLC/controller
Accuracy±0.1 % FSFull-scale accuracy for signal conditioning
Operating Temperature-40–85 °CIndustrial temperature range
Storage Temperature-55–125 °CExtended storage capability
Relative Humidity5–95 % RHNon-condensing
Ingress ProtectionIP54–IP65Dust and water resistance for harsh environmentsIEC 60529
Isolation Voltage1500 V DCInput to output isolation
Board MaterialFR-4Flame retardant glass epoxyIPC-4101
Board Thickness1.6 mmStandard thickness for rigidityIPC-6012
Dimensions100×80 mmCompact footprint for DIN rail mounting
Weight150 gLightweight for easy installation

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.
  • Signal Conditioning Circuitry
    Amplifies, filters, and isolates sensor signals to ensure accuracy and noise immunity
    Material: Electronic components on PCB
  • Microcontroller/Processor
    Processes sensor data and manages communication with control system
    Material: Integrated circuit
  • Power Regulation Circuit
    Provides stable, regulated power to sensors and board components
    Material: Voltage regulators and capacitors
  • Communication Interface
    Enables data exchange with control system via standard protocols
    Material: Communication ICs and connectors
  • Sensor Connectors Part
    Physical interface for connecting various sensor types
    Material: Plastic/ceramic with metal contacts
  • Protection Circuits
    Safeguards against electrical surges, ESD, and reverse polarity
    Material: Transient voltage suppressors, fuses, diodes

Applied To / Applications

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

Control & Sensor Package
View system integration details

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: 0 to 10 bar
other spec: Signal frequency range: 0-100 kHz, Input voltage: 5-24 VDC
temperature: -40°C to +85°C
Media Compatibility
✓ Water-based fluids ✓ Industrial gases (non-corrosive) ✓ Lubricating oils
Unsuitable: Highly corrosive chemical environments (e.g., concentrated acids, strong oxidizers)
Sizing Data Required
  • Sensor output signal type (e.g., 4-20mA, 0-10V, digital)
  • Required sampling rate/resolution
  • Number of sensor channels to interface

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Corrosion-induced signal drift
Cause: Exposure to moisture, chemicals, or corrosive atmospheres leading to oxidation of copper traces, solder joints, or connector pins, causing increased resistance and unstable electrical signals.
Thermal stress cracking
Cause: Repeated thermal cycling from power on/off cycles or environmental temperature fluctuations causing expansion/contraction mismatches between components (e.g., ICs, capacitors) and PCB substrate, resulting in cracked solder joints or delamination.
Maintenance Indicators
  • Intermittent or erratic sensor readings despite stable process conditions
  • Visible discoloration (brown/black spots), bulging capacitors, or burnt odor from the board
Engineering Tips
  • Apply conformal coating rated for the operating environment (e.g., acrylic, silicone) to protect against moisture, dust, and chemical exposure while ensuring compatibility with sensor connections.
  • Implement active cooling (e.g., heat sinks, forced air) and ensure adequate ventilation in enclosures to minimize thermal cycling stress, and use high-temperature rated components (e.g., 105°C capacitors) if operating near thermal limits.

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 61000-6-2 Electromagnetic Compatibility CE Marking (EU Directive 2014/35/EU Low Voltage Directive)

Quoted from the published standard.

Manufacturing Precision
  • PCB Trace Width: +/-0.05mm
  • Connector Pin Alignment: +/-0.1mm
Quality Inspection
  • In-Circuit Test (ICT)
  • Environmental Stress Screening (ESS)

Manufacturers of Sensor Interface Board

Manufacturer profiles associated with Sensor Interface Board.

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Frequently Asked Questions

What is the supply voltage range of the Sensor Interface Board?

The supply voltage range is 9–36 V DC, suitable for industrial power rails. Always verify the exact requirement for your specific model.

How many input channels does the board support?

The board supports 8–16 input channels, configurable for various sensor types. Confirm the channel count for your application.

What types of input and output signals are supported?

Input supports 4–20 mA current loop for industrial sensors, and output provides 0–10 V voltage to PLC/controller. Check compatibility with your sensors.

What is the operating temperature range?

The operating temperature range is -40 to 85 °C, with storage from -55 to 125 °C. Ensure your environment stays within these limits.
Data basis: editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Data Basis

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

Preliminary Technical Classification
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