High-Precision NTC Temperature Sensing for Automotive Battery CCS

2026-07-06 17:02

Introduction: The Heartbeat of Battery Safety 

In the high-stakes world of electric vehicles, thermal management is the guardian of battery safety. Accurate temperature sensing is no longer optional—it is the primary defense against thermal runaway and the key to optimizing battery performance.

At SALEABRI, we don't just manufacture NTC thermistors; we engineer integrated sensing solutions. We specialize in embedding high-precision NTC temperature sensors​ directly into CCS (Cell Contacting System) wiring harnesses, providing battery manufacturers with a reliable, drop-in component ready for automated assembly.

Our Role: The Sensor Expert Behind the CCS 

While the CCS handles high-voltage busbar connections, our contribution is the critical low-voltage signal path. We act as your specialized partner to integrate the temperature sensing function seamlessly into your CCS architecture.

Our Solution Includes:

●Precision NTC Probes:​ High-sensitivity thermistors selected for automotive-grade stability.

●Custom Wire Harness:​ Shielded or unshielded cables tailored to your routing and length requirements.

●Overmolded Connectors:​ Waterproof and vibration-resistant housings (e.g., TE, Molex, or Amphenol compatible).
●Pre-terminated Ends:​ Ready to connect directly to the BMS or FPC/FFC circuits.

Snap-in installation

Why Integrate NTC Sensors into the CCS Harness? 

Integrating the NTC sensor directly into the CCS harness offers significant advantages over discrete sensor placement:

1. Streamlined Assembly for Pack Manufacturers 

By supplying sensors already laced into the harness, we eliminate the need for manual sensor placement and fixing during pack assembly. This reduces cycle time and minimizes the risk of assembly errors on the production line.

2. Superior Mechanical Reliability 

We utilize overmolding or heat-shrink techniques to secure the NTC probe to the wire. This prevents strain on the solder joints and ensures the sensor remains precisely positioned on the battery cell terminal or busbar throughout the vehicle's lifespan.

Engineering Excellence: Designed for Automotive Rigor 

Our NTC-in-harness solutions are engineered to meet the stringent demands of the automotive environment (IATF 16949 certified processes):

●Wide Operating Range:​ Sensors rated from -40°C to +150°C​ to cover extreme conditions.

●High Accuracy:​ Tight resistance tolerances (±1% or ±0.5%) and B-value matching to ensure consistency across all cells.

●Chemical Resistance:​ Wire insulation (PVC, XLPE, or Teflon) resistant to coolant fluids and battery electrolytes.

●Vibration Proof:​ Tested to withstand the constant vibration of road conditions without signal interruption.

 

Application Focus: Where We Add Value 

                 Our NTC sensors are strategically placed within the battery module to monitor critical thermal points:

Terminal Sensing:​ Mounted on the positive/negative terminals to capture the hottest points of the cell.

Busbar Sensing:​ Embedded in the aluminum busbars to monitor inter-cell connection temperatures.

Surface Sensing:​ Attached directly to the prismatic or cylindrical cell casing for core temperature approximation.

Technical Specifications 

Parameter

Typical Specification

Custom Options Available

Sensor Type

NTC Thermistor

Glass bead, Epoxy, Chip-on-Flex

Resistance

10kΩ, 50kΩ, 100kΩ @ 25°C

Per customer specification

Beta Value 

3380K, 3435K, 3977K

High-precision matching

Harness Length

150mm - 500mm

Custom cut and stripped

Connector

2-pin Micro-Fit / Mini-Fit

TE, JST, Molex, or equivalent

Protection Rating

IP67 (Connector)

IP6K9K available


Product photos

Partner with a Sensing Specialist 

Choosing SALEABRI​ means more than just buying a sensor. It means gaining a partner who understands the thermal dynamics of lithium-ion batteries. We provide:

✅ Rapid Prototyping:​ Quick-turn samples for your CCS development.

✅ Full Validation Support:​ PPAP documentation and environmental test reports.

✅ Scalable Production:​ From R&D quantities to millions of units for mass production.

Let us help you build a safer, smarter battery.