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.

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.