---
product_id: 47814921
title: "CNBTR 20mm x 20mm White TES1-4902 Semiconductor 6V 2A Tablet Cooling Chip Peltier"
brand: "cnbtr"
price: "103 kr"
currency: DKK
in_stock: true
reviews_count: 3
category: "Cnbtr"
url: https://www.desertcart.dk/products/47814921-cnbtr-20mm-x-20mm-white-tes1-4902-semiconductor-6v-2a
store_origin: DK
region: Denmark
---

# 6V rated voltage Silent, vibration-free operation 65°C max temp difference CNBTR 20mm x 20mm White TES1-4902 Semiconductor 6V 2A Tablet Cooling Chip Peltier

**Brand:** cnbtr
**Price:** 103 kr
**Availability:** ✅ In Stock

## Summary

> ❄️ Power your cool with silent precision — stay ahead, stay chill!

## Quick Answers

- **What is this?** CNBTR 20mm x 20mm White TES1-4902 Semiconductor 6V 2A Tablet Cooling Chip Peltier by cnbtr
- **How much does it cost?** 103 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.dk](https://www.desertcart.dk/products/47814921-cnbtr-20mm-x-20mm-white-tes1-4902-semiconductor-6v-2a)

## Best For

- cnbtr enthusiasts

## Why This Product

- Trusted cnbtr brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Plug & Play Simplicity:** Effortless installation with no moving parts means zero noise and zero vibration—perfect for sleek setups.
- • **Eco-Friendly Efficiency:** Operates continuously without pollution or refrigerants, aligning with sustainable tech trends.
- • **Robust & Reliable Build:** Encased in premium 704 silicone rubber seal for durability and guaranteed quality with every unit.
- • **Spot-On Thermal Control:** Delivers precise cooling or heating in compact spaces without bulky refrigerants.
- • **Versatile Power Performance:** Rated for 6V and 2A, it adapts to your custom cooling needs while maintaining solid thermal stability.

## Overview

The CNBTR TES1-4902 is a compact 20x20mm semiconductor Peltier cooling chip designed for efficient spot cooling and heating. Operating at 6V and 2A, it achieves a maximum temperature differential of over 65°C without any moving parts, noise, or refrigerants. Its solid-state design, reinforced by a silicone rubber seal, ensures durability and silent operation, making it ideal for professional applications requiring reliable thermal management in small spaces.

## Description

Specifications: Model:TES1-4902 Rated Voltage:6.0V Wire Size:Lead Length 50±8mm RV Standard Wire Single Head 5mm Tinned Working Current:Imax=2A Assembly pressure: 85N/cm2 Dimensions:20x20x4.0mm (Component 49 Pairs) Operates Temperature:The temperature is between -55 degrees Celsius and 83 degrees Celsius(too high ambient temperature will affect the cooling efficiency directly) Temperature: -55-83 Degrees Maximum temperature difference:More than 65 Degrees Packaging standards: foam box packaging, storage conditions Ambient temperature:-10 to 40 Degrees Storage conditions:-40 to 60 Degrees Wiring method: red line connect anode, black line connect negative electrode (The word side is the cooling surface, no word side is the heat surface) Material:Semiconductor Color:White Brand name: CNBTR Size:2x2x0.4cm/0.78x0.78x0.16Inch(LxWxH) Weight:7g Features: 1.Applicable to a variety small areas where need to heat and cooling 2.Do not need any refrigerant, can work continuously, no pollution sources,rotating parts and rotary effect 3.Easy to install and work without vibration, noise 4.Packaging Process: Surrounded by standard 704 silicone rubber seal 5.No slide component,is a solid piece Package Content: 1 x TES1-4902 Semiconductor Refrigeration Tablet Cooling Chip Peltier The unique MPN label on each inner package, which confirm it passed the quality inspection and it is genuine item sold from our shop. Please offer it to us when you need assistance.

Review: High quality product! - I haven't tried it with 6 Volts yet, instead, I used a cheap 1.5V AA battery for a quick test and it did not disappoint. the two sides are well isolated from each other and the build seems truly solid. Would definitely recommend.
Review: No documentation included so be aware you MUST use a heat sink before applying power. - The Peltier effect of transferring heat from one side of this device is very limited compared to other “heat pumps” involving moving parts but for spot cooling or heating these are a great solution. PLEASE NOTE: These devices REQUIRE a heat sink on the hot side or you can damage the device. When experimenting with this device, do not pass current thru it unless the hot side is thermally mounted on a heat sink. There is no datasheet or any other documentation included with this device so do your research on limits and the proper use of this in your application. The more voltage (up to the rated 6V max) you apply, the more current and the greater the difference in temperature between the two sides. I measured about 880mA at 3V and 1.55A at 6V but the current measured is dependent not just on the applied voltage, it is also affected by ambient temperature, how efficient the heat sink is at dissipating the heat generated on the hot side and the thermal mass load on the cold side. You can also generate a small voltage with this device when you set an ice cube on one side and connect the leads to a very small load like a motor I have that runs on as little as 0.5V at 19mA as shown in my video demonstration. Note that in my demo there is no heatsink on the other side so after a short while both sides become cold from the ice cube and the motor will stop. There has to be a DIFFERENCE in temperature to generate electricity. This is a great electronic part for classroom demonstrations of the Peltier effect or for keeping an IC from getting overheated or just experimentation.

## Features

- Applicable to a variety small areas where need to cooling
- Do not need any refrigerant, can work continuously, no pollution sources,rotating parts and rotary effect
- Easy to install and work without vibration, noise
- Packaging Process: Surrounded by standard 704 silicone rubber seal
- No slide component,is a solid piece

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0747K8FHW |
| Best Sellers Rank | #701 in Heatsinks |
| Brand | CNBTR |
| Customer Reviews | 4.4 4.4 out of 5 stars (19) |
| Date First Available | July 25, 2017 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 0.634 ounces |
| Item model number | M6170717027 |
| Manufacturer | yqltd |
| Package Dimensions | 3.9 x 3 x 0.04 inches |
| Voltage | 6 Volts |

## Images

![CNBTR 20mm x 20mm White TES1-4902 Semiconductor 6V 2A Tablet Cooling Chip Peltier - Image 1](https://m.media-amazon.com/images/I/61KMSwr9+pL.jpg)
![CNBTR 20mm x 20mm White TES1-4902 Semiconductor 6V 2A Tablet Cooling Chip Peltier - Image 2](https://m.media-amazon.com/images/I/61fC3-HUgyL.jpg)
![CNBTR 20mm x 20mm White TES1-4902 Semiconductor 6V 2A Tablet Cooling Chip Peltier - Image 3](https://m.media-amazon.com/images/I/61vFV3AaUJL.jpg)
![CNBTR 20mm x 20mm White TES1-4902 Semiconductor 6V 2A Tablet Cooling Chip Peltier - Image 4](https://m.media-amazon.com/images/I/61gyCSj-VmL.jpg)
![CNBTR 20mm x 20mm White TES1-4902 Semiconductor 6V 2A Tablet Cooling Chip Peltier - Image 5](https://m.media-amazon.com/images/I/614NXPy4rCL.jpg)

## Questions & Answers

**Q: Can this device be used for both heating and cooling at the same time? If yes then how?**
A: You change the polarity. Positive to negative will make one side hot and one side cold, then if you swap negative and positive, the opposite sides will heat up and cool down.

## Customer Reviews

### ⭐⭐⭐⭐⭐ High quality product!
*by F***L on August 16, 2019*

I haven't tried it with 6 Volts yet, instead, I used a cheap 1.5V AA battery for a quick test and it did not disappoint. the two sides are well isolated from each other and the build seems truly solid. Would definitely recommend.

### ⭐⭐⭐⭐⭐ No documentation included so be aware you MUST use a heat sink before applying power.
*by D***A on July 9, 2025*

The Peltier effect of transferring heat from one side of this device is very limited compared to other “heat pumps” involving moving parts but for spot cooling or heating these are a great solution. PLEASE NOTE: These devices REQUIRE a heat sink on the hot side or you can damage the device. When experimenting with this device, do not pass current thru it unless the hot side is thermally mounted on a heat sink. There is no datasheet or any other documentation included with this device so do your research on limits and the proper use of this in your application. The more voltage (up to the rated 6V max) you apply, the more current and the greater the difference in temperature between the two sides. I measured about 880mA at 3V and 1.55A at 6V but the current measured is dependent not just on the applied voltage, it is also affected by ambient temperature, how efficient the heat sink is at dissipating the heat generated on the hot side and the thermal mass load on the cold side. You can also generate a small voltage with this device when you set an ice cube on one side and connect the leads to a very small load like a motor I have that runs on as little as 0.5V at 19mA as shown in my video demonstration. Note that in my demo there is no heatsink on the other side so after a short while both sides become cold from the ice cube and the motor will stop. There has to be a DIFFERENCE in temperature to generate electricity. This is a great electronic part for classroom demonstrations of the Peltier effect or for keeping an IC from getting overheated or just experimentation.

### ⭐⭐⭐⭐⭐ Cools/Heats Quickly
*by J***G on July 8, 2025*

With power supplied according to the specifications (6V @2A max, + on RED and - on BLACK), and a proper heat sink attached to either side, this will almost instantly either heat or cool the opposite side. The side with the part number (TES1-4902) will be cooled, while the unmarked side will be heated. I didn't measure the temperature, but if I held my thumb on the cool side for more than about 10 seconds, I would quickly get a case of frostbite. At 6V in, the current draw is about 1.75A, so my supply (which was set to limit at 2A) never switched from constant voltage to constant current mode. Active coolers are (literally) cool, but keep in mind that they actually add heat to the system. Power dissipation on this part is a bit over 10W, so whatever heat sink you use must be able to dissipate 10 J/s of heat, plus whatever extra heat that is being moved from the thermally-bonded object to the heat sink.

## Frequently Bought Together

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*Product available on Desertcart Denmark*
*Store origin: DK*
*Last updated: 2026-02-25*