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MAXIM INTEGRATED / ANALOG DEVICES MAX6509CAUKT Temperature Switch

The MAX6509CAUK+T is a resistor-programmable temperature switch housed in a 5-pin SOT-23 package. It features two temperature-dependent references—one with a positive temperature coefficient and the other with a negative temperature coefficient—and a comparator. The device can be configured for temperature thresholds ranging from -40°C to +125°C by connecting an external resistor between SET and GND. The temperature trip point is determined when the two reference voltages are equal. Its output is designed as an open-drain and easily interfaces with microprocessor reset inputs. Suitable for microcontroller temperature monitoring, temperature control, and alarm systems, it operates with a supply voltage between 2.7V and 5.5V. The IC offers a typical threshold accuracy of ±0.5°C within the operating range and provides hysteresis options of 2°C or 10°C depending on the HYST pin configuration. Applications include sensing and instrumentation as well as industrial temperature monitoring.

Authorized Distributors
Source:Newark
Part No:MAX6509CAUK+T
Stock:1710
Inv Date:06-05-2026
Price: Unit price: $3.04
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Source:DigiKey
Part No:MAX6509CAUK+T
Stock:9369
Inv Date:06-05-2026
Price: Unit price: $2.95
Buy/RFQ:
Part No:MAX6509CAUK+T
Stock:2253
Inv Date:06-06-2026
Price: Unit price: $2.95
Buy/RFQ:

MAXIM INTEGRATED / ANALOG DEVICES MAX6509CAUKT Temperature Switch Specifications:

  • Package: 5-pin SOT-23
  • Supply Voltage: 2.7V to 5.5V
  • Temperature Range: -40°C to +125°C
  • Temperature Threshold Accuracy: ±0.5°C (typ), ±4.7°C (max)
  • Hysteresis Options: 2°C or 10°C, pin-selectable
  • Reference Types: Positive and negative coefficient
  • Output Type: Open-drain, interface ready for microcontroller reset
  • Thermal Contact: Critical for accurate sensing, use suitable thermal interface materials
  • Application: Microcontroller temp monitoring, alarms, temperature control, sensing

Buy the Maxim Series Temperature Switch: MAX6509AUKT

Order the Maxim MAX6509CAUK+T resistor-programmable temperature switch online today. Designed for precise temperature threshold detection from -40°C to +125°C, it features high accuracy of ±0.5°C and simple external resistor adjustments. The device’s open-drain output easily interfaces with microcontrollers or alarms, ideal for industrial temperature monitoring, thermal management, and safety systems. Its low power consumption and flexible hysteresis options of 2°C or 10°C make it suitable for compact, high-reliability designs. Purchase now for immediate integration into sensing and control projects, ensuring robust performance and dependable temperature management.

Get Maxim MAX6509CAUK+T today—built for precision and long-lasting durability in temperature sensing applications.

Frequently Asked Questions

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You can download the MAX6509CAUKT datasheet or visit the MAXIM INTEGRATED / ANALOG DEVICES website for support.

Who is the manufacturer of MAX6509CAUKT?

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