Temperature Sensors - Thermostats - Solid State

Image Part Number Description / PDF Quantity Rfq
MCP9509CT-E/OT

MCP9509CT-E/OT

Roving Networks / Microchip Technology

THERMOSTAT PROG ACT LOW SOT23-5

2946

MCP9502PT-095E/OT

MCP9502PT-095E/OT

Roving Networks / Microchip Technology

THERMOSTAT 95DEGC ACT HI SOT23-5

2308

TC6501P075VCTTRG

TC6501P075VCTTRG

Roving Networks / Microchip Technology

THERMOSTAT 75DEGC ACT LO SOT23-5

0

TC6501P045VCTTRG

TC6501P045VCTTRG

Roving Networks / Microchip Technology

THERMOSTAT 45DEGC ACT LO SOT23-5

0

TC6501P115VCTTRG

TC6501P115VCTTRG

Roving Networks / Microchip Technology

THERMOSTAT 115DEG ACT LO SOT23-5

0

TC6501P125VCTTRG

TC6501P125VCTTRG

Roving Networks / Microchip Technology

THERMOSTAT 125DEG ACT LO SOT23-5

0

TC6501P125VCTRTG

TC6501P125VCTRTG

Roving Networks / Microchip Technology

THERMOSTAT 125DEG ACT LO SOT23-5

0

TC6501P095VCTTRG

TC6501P095VCTTRG

Roving Networks / Microchip Technology

THERMOSTAT 95DEGC ACT LO SOT23-5

0

TC6501P085VCTTRG

TC6501P085VCTTRG

Roving Networks / Microchip Technology

THERMOSTAT 85DEGC ACT LO SOT23-5

0

TC6501P105VCTTRG

TC6501P105VCTTRG

Roving Networks / Microchip Technology

THERMOSTAT 105DEG ACT LO SOT23-5

0

TC6501P095VCTRTG

TC6501P095VCTRTG

Roving Networks / Microchip Technology

THERMOSTAT 95DEGC ACT LO SOT23-5

0

TC07EUA

TC07EUA

Roving Networks / Microchip Technology

THERMOSTAT PROG PSH-PULL 8MSOP

0

TC07VUA713

TC07VUA713

Roving Networks / Microchip Technology

THERMOSTAT PROG PSH-PULL 8MSOP

0

MCP9510HT-E/CHVAO

MCP9510HT-E/CHVAO

Roving Networks / Microchip Technology

THERMOSTAT PRG ACT HI/LO SOT23-6

0

TC6501P065VCTTRG

TC6501P065VCTTRG

Roving Networks / Microchip Technology

THERMOSTAT 65DEGC ACT LO SOT23-5

0

TC621CVOA-VAO

TC621CVOA-VAO

Roving Networks / Microchip Technology

THERMOSTAT -40 TO 125C C

0

Temperature Sensors - Thermostats - Solid State

1. Overview

Solid state temperature sensors and thermostats are electronic devices that detect and regulate temperature using semiconductor-based sensing elements. Unlike mechanical thermostats, these solid state devices offer faster response times, higher precision, and enhanced reliability through electronic signal processing. They play critical roles in industrial automation, consumer electronics, automotive systems, and medical equipment by enabling precise thermal management and energy-efficient operations.

2. Main Types and Functional Classification

TypeFunctional FeaturesApplication Examples
Semiconductor-based SensorsUtilize silicon bandgap technology for linear output, high accuracy ( 0.5 C typical)Computer CPU thermal protection
Thermistor Interface ICsDigital output with integrated ADC, supports I2C/SPI protocolsSmart home thermostats
Thermal SwitchesProgrammable trip points, latching/non-latching modesIndustrial oven controllers
MEMS Thermal SensorsMicromachined structures for miniaturized applicationsWearable health monitors

3. Structure and Components

Typical solid state devices consist of: (1) Semiconductor sensing element (silicon/germanium), (2) Signal conditioning circuitry (amplifiers, ADCs), (3) Protective packaging (epoxy/ ceramic encapsulation), (4) Interface connectors (wire leads/SMD pads). Advanced designs integrate microcontroller units for smart functionality, with temperature-to-digital conversion performed on-chip.

4. Key Technical Specifications

ParameterImportance
Temperature Range (-55 C to +150 C)Determines operational environment suitability
Accuracy ( 0.1 C to 3 C)Critical for precision applications like medical devices
Response Time (1ms-10s)Affects system reaction speed
Output Type (Analog Voltage/PWM/Digital)Dictates compatibility with control systems
Power Consumption (5 A-10mA)Essential for battery-powered devices
Thermal Hysteresis (0.1 C-5 C)Prevents oscillation in switching applications

5. Application Fields

Key industries include: Industrial Process Control (chemical reactors), Medical Equipment (patient monitors), Automotive (battery management systems), Consumer Electronics (smartphones), HVAC systems, and Aerospace (avionics thermal regulation). Specific devices: semiconductor manufacturing tools, electric vehicle battery packs, and refrigeration systems.

6. Leading Manufacturers and Products

ManufacturerRepresentative ProductKey Features
Texas InstrumentsLM75BDigital temperature sensor with 1 C accuracy
STMicroelectronicsL6281Thermal protector for motor drives
HoneywellTSY01-B1Digital thermostat IC for HVAC
Omron ElectronicsD6T-44LMEMS-based thermal array sensor

7. Selection Guidelines

Key considerations: (1) Match temperature range to application environment, (2) Balance accuracy requirements with cost, (3) Verify packaging suitability (IP rating for harsh environments), (4) Check interface compatibility (analog/digital), (5) Evaluate power budget constraints, (6) Consider calibration requirements. For industrial applications, prioritize long-term stability; for consumer devices, focus on size and cost.

8. Industry Trends

Current trends include: Development of wireless temperature nodes for IoT applications, integration with AI-based predictive maintenance systems, advancement of ultra-low-power wake-up sensors (<1 A consumption), adoption of wide bandgap semiconductors for high-temperature operation, and increased use of MEMS technology for flexible form factors. Market growth driven by electric vehicle thermal management and smart building automation demands.

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