DC 12V 5A PWM Fan Temperature Control Speed Controller Module

Take precise control of your cooling setup with this DC 12V 5A PWM Fan Temperature Control Speed Controller Module. Designed for PC builds, server racks, and electronics enclosures, this compact SMD module automatically adjusts fan speed based on real-time temperature readings from the included NTC thermistor probe — keeping your components running cool and your system whisper-quiet under varying loads.

Equipped with a built-in stall alarm (700–800 RPM trigger), the module alerts you the moment fan operation falls below the safe threshold, giving you peace of mind that your cooling is always performing as expected. With a wide operating temperature range of -40°C to +85°C and support for up to 5A load current, this controller is ready for demanding environments.

Key Features

PWM Speed Control: Smooth, stepless fan speed adjustment based on detected temperature
NTC Thermistor Probe: 50K (B=3950) temperature probe for accurate, real-time sensing
Stall Alarm: Audible buzzer alert triggers at 700–800 RPM to warn of fan failure or stall
High-Temp Alarm: Configurable high-temperature alert to protect sensitive electronics
Wide Operating Range: Reliable performance from -40°C to +85°C
Compact SMD Package: Easy to integrate into custom builds and enclosures
Supply Voltage: DC 12V, up to 5A load current
Customizable: Supports custom configurations for tailored cooling solutions

Specifications

Supply Voltage	DC 12V
Max Current	5A
Control Method	PWM (Pulse Width Modulation)
Temperature Probe	NTC 50K, B=3950
Stall Alarm Threshold	700–800 RPM
Operating Temperature	-40°C to +85°C
Package Type	SMD
Condition	New

What's in the Box

PWM Fan Temperature Control Speed Controller Module (1pc or 5pc pack)
NTC Thermistor Probe (50K B=3950)

Perfect For

Custom PC and server cooling builds
DIY electronics enclosures and industrial control cabinets
3D printers, laser engravers, and other heat-generating equipment
Automation and embedded system projects

Related Products You May Like

Learn more: EPA guidance on lithium-ion battery handling

Frequently Asked Questions

Q: What does the PWM Fan Temperature Control Speed Controller Module do?

A: This module automatically regulates your DC 12V fan's speed using Pulse Width Modulation (PWM) based on live temperature readings from its NTC thermistor probe (50K, B=3950). As temperatures rise, fan speed increases; as temperatures drop, the fan slows down — keeping noise low and cooling efficient without any manual adjustments.

Q: What is the stall alarm feature and how does it work?

A: The built-in stall alarm monitors your fan's RPM in real time. If the fan speed drops below the 700–800 RPM threshold — due to a blockage, failure, or disconnection — the onboard buzzer activates to alert you immediately, helping you take action before your electronics are affected by insufficient airflow.

Q: Is this module compatible with standard 12V PC and CPU fans?

A: Yes. The module is designed for DC 12V fans and supports load currents up to 5A, making it compatible with the vast majority of standard PC case fans, CPU cooling fans, and other 12V DC fans used in computers, servers, and DIY electronics projects.

Q: Can I use this controller in industrial or outdoor environments?

A: Absolutely. With an operating temperature range of -40°C to +85°C, this module is well-suited for use in industrial control cabinets, outdoor enclosures, and other demanding environments where temperature extremes are common.

Q: What quantity options are available?

A: This module is available in single-unit (1pc) or a value 5-pack (5pcs), making it easy to stock up for multiple projects or builds at once.

Production & Packaging Notice

To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.