Coolant Temperature Sensor (CTS)

Amphenol Thermometrics Coolant Temperature Sensors CTSfor Automotive Applications

The Coolant Temperature Sensor (CTS) monitors the temperature of the coolant that is being pumped around the battery to cool the battery module of EV/PHEVs. If the battery module starts to overheat, the Coolant Temperature Sensor relays a signal to the Battery Management System (BMS). The BMS uses this information to prevent battery packs from any damage and maximize the performance.

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Features

  • IP67 rated package
  • Compact IP67 design with integrated connector
  • Customizable to meet application installation needs
  • Variety of RvT curves and terminal plating available
  • Operating temperatures to 100°C
  • Fast response proven design

Applications

  • Battery coolant temperature
  • HVAC refrigerant lines

Specifications

 

Operating Temperature

-40°C to 100°C

Storage Temperature

-40°C to 125°C

R @ 110°C

2828 KΩ ± 1.3%

Response Time

5 seconds from 25°C  to 85°C in water

Temperature Accuracy

R@25°C ±0.3°C

Housing Material

PBT-GF15 Connector with 14mm Hex
Machined 12L14 Steel, Zinc with trivalent
chromium

Beta (25/85)° C

3975K ±0.75%

Connector

USCAR 064 Sealed (IP67)

Mating Connector

USCAR 3140x-2110

 

R vs. T

Temp (°C) Resistance (Ω) Resistance Accuracy Temperature Accuracy
     -% +%  +°C -°C
 -40 94331 -3.9 4.0 0.58 -0.61
 -35 68175 -3.6 3.7 0.57 -0.59
-30 49796 -3.4 3.5 0.55 -0.57
-25 36743 -3.2 3.3 0.53 -0.55
-20 27377 -3.0 3.0 0.51 -0.52
-15 20590 -2.8 2.8 0.49 -0.50
-10 15626 -2.6 2.6 0.47 -0.48
-5 11960 -2.4 2.4 0.45 -0.46
0 9231 -2.2 2.2 0.43 -0.43
5 7180 -2.0 2.0 0.40 -0.41
10 5628 -1.8 1.8 0.38 -0.38
15 4444 -1.6 1.6 0.35 -0.35
20 3533 -1.5 1.5 0.32 -0.33
25 2828 -1.3 1.3 0.30 -0.30
30 2278 -1.5 1.5 0.34 -0.34
35 1847 -1.6 1.6 0.39 -0.39
40 1506 -1.8 1.8 0.44 -0.44
45 1235 -1.9 1.9 0.49 -0.49
50 1018 -2.1 2.1 0.54 -0.55
55 844 -2.2 2.2 0.59 -0.60
60 703 -2.3 2.4 0.65 -0.66
65 589 -2.5 2.5 0.70 -0.71
70 495 -2.6 2.6 0.76 -0.77
75 418 -2.7 2.8 0.81 -0.83
80 355 -2.8 2.9 0.87 -0.89
85 303 -2.9 3.0 0.93 -0.95
90 259 -3.1 3.1 0.99 -1.02
95 222 -3.2 3.3 1.05 -1.08
100 192 -3.3 3.4 1.12 -1.15

 

 
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