# NTC RING THERMISTOR, 10K, WIRE LEADED
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**URL**: https://novapart.co/products/213864-2637/ntc-ring-cable-3964-m35-300mm10k2
**SKU**: 213864-2637
**Manufacturer**: MOLEX / PARTNER STOCK
**Price**: €3.3000
**Stock**: 1000+
## Description
The Molex 213864-2637 is a Negative Temperature Coefficient (NTC) ring thermistor cable assembly engineered for precise surface temperature sensing and thermal management. Featuring a nominal resistance of 10 kOhms at 25°C with a tight resistance tolerance of ±2% and a B-constant of 3964K (±1% tolerance), this sensor provides highly accurate temperature feedback. The active element exhibits a temperature coefficient of resistance (TCR) of -4.4%/°C, ensuring a predictable, non-linear resistance shift corresponding to thermal variations. The assembly is rated for a maximum power dissipation of 100 mW, a thermal time constant of 5 seconds in air, and a dissipation constant of 1 mW/K.
Designed for robust physical integration, the component incorporates a thermally conductive epoxy-potted ring terminal that functions as an efficient heat-sink, enabling secure mechanical surface mounting on chassis, heat sinks, or busbars while optimizing thermal transfer. The assembly includes 300 mm wire leads terminating in a reliable micro-connector interface (Micro-Lock Plus, part number 5055650201), facilitating integration into restricted spaces. The sensor operates over a wide temperature range of -40°C to +105°C with the connector, and up to +150°C utilizing the bare leads.
This NTC thermistor assembly is suited for thermal protection, temperature compensation, and closed-loop thermal control across diverse architectures. Typical deployment scenarios include industrial heating, ventilation, and air conditioning (HVAC) systems, white goods and home appliances (refrigerators, electric ovens, freezers, and coffee makers), as well as consumer electronics, printers, and automated transaction terminals such as ATMs and vending machines where reliable surface-contact temperature monitoring is required.
## Specifications
| Parameter | Value |
|---|---|
| Svhc | Lead (04-Feb-2026) |
| B-Constant | 3964K |
| Lead Length | 300mm |
| Ntc Case Size | - |
| Product Range | 213864 Series |
| Qualification | - |
| Thermistor Type | Ring Lug |
| Resistance (25°C) | 10kohm |
| B-Constant Tolerance | ± 1% |
| Resistance Tolerance (25°C) | ± 2% |
## Datasheet
📄 [Download PDF](https://novapart.co/datasheet/farnell:4231092/)
**PRELIMINARY**
## **NTC Ring Terminal Sensor Cable Assemblies**
**Molex’s NTC Ring Terminal Sensor Cable Assemblies are available in a variety of beta values, resistances, lengths and temperature ranges for a diverse group of applications**
## **Features and Advantages**
Potted with thermally conductive epoxy Ring terminal heat-sink Allows for continuous Enables secure surface operation in temperature mounting and heat detection range of -40 to +105°C ey Compact temperature sensing solution Micro-Lock Plus Supports accurate surface temperature Ensures a reliable reading in difficult to reach location and easy connection
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Temperature Sensing Ring Terminal
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## **Reference Data**
|Reference Data|Reference Data|Reference Data|
|---|---|---|
|Parameter|Value|Unit|
|Resistance at 25°C|1, 2.25, 3, 4.7, 5, 10, 12, 30, 47, 50, 100|Ω|
|Resistace Tolerance|1,2,3,5|%|
|Operating Temperature Range|-40 to +150|°C|
|Dissapation Const (in air)|1|mW/K|
|Temp Coeff. Resistance|-4.4|%/C|
|Thermial Time Const|5|s|
|Mounting Hole Diameter|M2, M3.5, M4|mm|
|Max Power|100|mW|
|Beta Value at B25/85|3985, 3991, 4020, 4091, 4035, 3964, 3802, 3600|K|
|Molex Connector|5055650201|Part Number|
**PRELIMINARY**
## **NTC Ring Terminal Sensor Cable Assemblies**
## **Markets and Applications**
## Consumer
Vending machines
ATMs
Computers
Printing machines
Home Appliance
Refrigerators Electric Ovens Freezers Coffee makers
Industrial
HVAC
## **Target Specifications**
## _REFERENCE INFORMATION_
Packaging: UL File No.: CSA File No.:
## _ELECTRICAL_
Max Power: 100 mW Dissipation Constant (in air): 1 mW/K Temp Coefficient Resistance: -4.4 %/°C Thermal Time Constant: 5s
## _PHYSICAL_
Operating Temperature w/ connector : -40 to +105°C Operating Temperature w/ leads : -40 to +150°C
Note: Molex reserves the right to delay or cancel production of the depicted product without additional notice. Please contact your Molex customer service representative for product availability.
## **www.molex.com/link/ntccableassemblies.html**
Molex is a registered trademark of Molex, LLC in the United States of America and may be registered in other countries; all other trademarks listed herein belong to their respective owners.
Order No. 987652-1521
USA/0k/GF/2019.11
©2019 Molex
## Links
- [View this product on Novapart](https://novapart.co/products/213864-2637/ntc-ring-cable-3964-m35-300mm10k2)
- [Request a quote for this part](https://novapart.co/quote/)
- [Supplier page](https://es.farnell.com/molex-partner-stock/213864-2637/ntc-ring-thermistor-10k-wire-leaded/dp/4231092)
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