TCB-NA Temperature Controller for Standard Coolers

X-Meritan TCB-NA Temperature Controller for Standard Coolers is a temperature control module for standard thermoelectric coolers (TEC), supporting both cooling and heating. It provides ±0.1°C temperature control accuracy, 0–10A TEC current, and a control range of -20°C to +100°C.

With a standard ASCII serial interface, 10K NTC temperature sensing, and a compact 60 × 42 × 26.5mm structure, the TCB-NA is designed for straightforward integration into industrial and commercial thermal management systems.

Technical Specifications

The NTC B value can be customized. A different B value affects absolute temperature measurement but does not change the basic control accuracy.

Control Functions

Heating and Cooling

The controller measures temperature through the NTC sensor and adjusts the TEC direction according to the setpoint. This allows the same module to provide both heating and cooling without separate control hardware.

ON/OFF Regulation

The ON/OFF control method is designed for stable temperature maintenance in standard TEC applications, including laser diode and laboratory equipment.

Serial Interface

Temperature settings and real-time monitoring can be managed through an ASCII serial protocol. Common serial tools such as Windows HyperTerminal can be used during setup and testing.

Dedicated alarm and “ready” signals provide operating-status feedback, while the TEC shutdown input allows the host system to disable TEC operation when necessary.

Power Matching

TEC Voltage

Voltage matching is critical because TCB-NA Temperature Controller for Standard Coolers does not provide internal output voltage limiting. The supply voltage must not exceed the rated voltage of the connected TEC.

For example, when using a 12V TEC, the system power supply should be selected accordingly.

Power Ripple

The controller's switching operation may increase ripple on the connected switching power supply. If the system contains other boards sensitive to electrical noise or EMI, a separate power supply for the controller may be preferable.

Temperature Performance

Sensor Range

The connected 10K NTC supports a specified measurement range of -30°C to +147°C, while active temperature control is specified from -20°C to +100°C.

Accuracy

The specified temperature control accuracy and set temperature accuracy are both ±0.1°C. Actual system performance can also be affected by NTC tolerance, sensor placement, thermal contact, TEC characteristics, heat dissipation, and ambient conditions.

For applications requiring strict temperature stability, testing should be performed with the final TEC, sensor, load, and mechanical structure.

Application Areas

Laser Diodes

The controller can maintain a stable thermal environment for laser diode systems where temperature directly affects operating performance.

Laboratory Equipment

It is suitable for laboratory instruments requiring standard thermoelectric heating and cooling with stable temperature regulation.

Industrial Systems

Industrial equipment can use the module for general-purpose TEC control where compact installation, serial communication, and cost efficiency are important.

Smart Appliances

The cost-oriented architecture makes the controller suitable for smart appliance manufacturing and other volume applications requiring standard temperature control.

TCB-NA or TCB-NE?

TCB-NA is suitable when the project prioritizes standard temperature control and cost efficiency. For applications requiring more advanced energy management or higher-level temperature control functions, the TCB-NE series may be more appropriate.

The selection should be based on TEC voltage, current, target temperature, control requirements, efficiency, and system architecture.

Procurement Requirements

Before ordering, buyers should confirm the TEC rated voltage, maximum current, power supply voltage, target temperature, required accuracy, NTC specification, communication requirements, and operating environment.

X-Meritan operates its own factory in China, covering PCB assembly and final calibration. Its engineering team can provide technical support for TEC voltage matching, power ripple management, and configuration requirements. Standard component inventory and overseas logistics support OEM and volume procurement.

Installation Notes

The power supply must be compatible with the TEC rating. Exceeding the TEC voltage may cause component overload because the TCB-NA Temperature Controller for Standard Coolers has no internal output voltage limiting.

The 0–10A current specification should be evaluated together with the TEC, wiring, connectors, and power supply. Proper heat dissipation is also required for the complete thermoelectric system.

When connecting other sensitive electronics to the same switching power supply, check ripple and EMI performance before final system integration.

Frequently Asked Questions

What TEC voltage can the TCB-NA support?

The controller supports TEC voltages from 5V to 27V. The TEC voltage must be equal to or higher than the board supply voltage. Because the TCB-NA has no internal output voltage limiting, the power supply must not exceed the TEC's rated voltage.

What is the maximum TEC current?

The TCB-NA Temperature Controller for Standard Coolers supports a TEC current range of 0–10A. The actual operating current should be selected according to the TEC rating, thermal load, wiring, connectors, and power supply capacity.

Can the controller provide both heating and cooling?

Yes. The bidirectional control architecture allows the TEC to operate in both heating and cooling modes, making it possible to maintain a target temperature under changing ambient conditions.

What temperature sensor does the controller use?

The standard configuration uses a 10K NTC with a default B value of 3950. The B value can be customized according to application requirements. The specified measurement range is -30°C to +147°C, with a control range of -20°C to +100°C.

How can the TCB-NA be controlled or monitored?

The controller uses a standard ASCII serial interface for temperature setting and real-time monitoring. It also provides alarm and “ready” status signals and a TEC shutdown input for integration with the host control system.