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Durable temperature sensor designed for harsh environments Amphenol JS8746A-0.20 ensures monitoring

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Durable temperature sensor designed for harsh environments Amphenol JS8746A-0.20 ensures monitoring

Resistance @ 25℃ : 10kΩ

Operating Temperature : -40℃~+125℃

B Constant (25℃/100℃) : -

B Constant (25℃/85℃) : 3977K

B Constant (25℃/75℃) : -

B Constant Tolerance : -

B Constant (25℃/50℃) : -

Description : 10kΩ NTC Thermistors RoHS

Mfr. Part # : JS8746A-0.20

Model Number : JS8746A-0.20

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Product Overview

The JS8746 Harsh Environment Temperature Sensor is engineered for critical temperature monitoring in demanding conditions, particularly for the transportation of goods by land, sea, and air. It ensures the integrity of temperature-sensitive merchandise, such as medical products, by maintaining strict temperature limits, thereby preventing deterioration and avoiding costly product write-offs. Designed to meet statutory requirements and performance expectations, this sensor is ideal for HVAC control systems in the container-ship market, offering robust protection against water ingress and degradation from harsh marine environments. Its advanced materials and build standards ensure reliable performance even when exposed to corrosive elements like salt solutions, ozone, UV radiation, and cleaning detergents.

Product Attributes

  • Brand: Amphenol Advanced Sensors
  • Housing Material: Stainless steel hard shell (Class corrosion resistance A2 or better according to ISO3506)
  • Cable Material: Double-insulated, multicore copper conductors, tin-coated
  • Crimp Caps Material: Tin-coated brass with integral strain relief
  • Environmental Protection: IP68
  • Resistance To: Salt solutions, Ozone, UV, and a variety of marine environment cleaning detergents
  • Inert To: Trace levels of airborne R134a refrigerant

Technical Specifications

Part Number L / mm K / mm Tolerance 0-70C / C Nominal Resistance at 25C B25/85 Temperature Range Time Constant Withstand Voltage
JS8746A-0.20 1000 50 0.20 10,000 3977K -40C to 125C 20 seconds or less 2.5kV rms for min. 1 minute
JS8746B-0.20 2000 50 0.20
JS8746C-0.20 3000 50 0.20
JS8746A-0.15 1000 50 0.15
JS8746B-0.15 2000 50 0.15
JS8746C-0.15 3000 50 0.15
Conductor Cross-sectional Area: 0.25 mm (23 AWG) min HACT Exposure: +14 days Temperature Tolerance Rating: 0.2C and 0.15C (0-70C)
Cable Configuration: 19mm x 0.14mm Environmental Protection: IP68 Corrosion Resistance: A2 or better (ISO3506)
Thermal Equilibrium Temperature Tolerance: 0.2C or 0.15C (0C to 70C) Resistance at 25C: 10,000 nominal B25/85: 3977K nominal
Resistance Versus Temperature Properties: See table below Housing: Stainless steel hard shell Cable: Double-insulated, multicore copper conductors, tin-coated
Crimp Caps: Tin-coated brass with integral strain relief Applications: Transportation of goods by land, sea and air Designed for: HVAC control systems in container-ship market
HACT Testing: Exceeded 14 days (1 day HACT = 1 year marine exposure) Material Resistance: Salt solutions, Ozone, UV, cleaning detergents Refrigerant Inertness: Trace levels of airborne R134a
Thermal Equilibrium Resistance Vs. Temperature Table (0.2C Tolerance between 0C and 70C)
Temp C R nom / R min / R max / R Tol - % R Tol + % Temp Tol + C Temp Tol - C
-40 333560 328250 338930 -1.59 1.61 0.24 -0.24
-35 241070 237420 244750 -1.51 1.53 0.24 -0.24
-30 176080 173550 178630 -1.44 1.45 0.23 -0.23
-25 129930 128160 131700 -1.36 1.37 0.23 -0.23
-20 96807 95560 98061 -1.29 1.30 0.22 -0.22
-15 72809 71922 73699 -1.22 1.22 0.22 -0.22
-10 55253 54617 55890 -1.15 1.15 0.21 -0.21
-5 42292 41834 42751 -1.08 1.09 0.21 -0.21
0 32639 32382 32897 -0.79 0.79 0.15 -0.15
5 25391 25139 25642 -0.99 0.99 0.20 -0.20
10 19902 19711 20093 -0.96 0.96 0.20 -0.20
15 15713 15567 15860 -0.93 0.93 0.20 -0.20
20 12493 12380 12606 -0.90 0.90 0.20 -0.20
25 10000 9912.2 10088 -0.88 0.88 0.20 -0.20
30 8055.9 7987.3 8124.6 -0.85 0.85 0.20 -0.20
35 6530.0 6475.9 6584.1 -0.83 0.83 0.20 -0.20
40 5324.6 5281.8 5367.5 -0.80 0.80 0.20 -0.20
45 4366.5 4332.4 4400.7 -0.78 0.78 0.20 -0.20
50 3600.5 3573.1 3627.9 -0.76 0.76 0.20 -0.20
55 2984.6 2962.5 3006.7 -0.74 0.74 0.20 -0.20
60 2486.6 2468.7 2504.5 -0.72 0.72 0.20 -0.20
65 2081.8 2067.2 2096.4 -0.70 0.70 0.20 -0.20
70 1751.1 1739.1 1763.0 -0.68 0.68 0.20 -0.20
75 1479.6 1468.8 1490.3 -0.72 0.73 0.22 -0.22
80 1255.6 1246.0 1265.2 -0.77 0.77 0.24 -0.24
85 1070.0 1061.4 1078.6 -0.81 0.81 0.25 -0.26
90 915.55 907.82 923.29 -0.84 0.85 0.27 -0.27
95 786.43 779.50 793.39 -0.88 0.88 0.29 -0.29
100 678.07 671.84 684.32 -0.92 0.92 0.31 -0.31
105 586.75 581.16 592.38 -0.95 0.96 0.33 -0.34
110 509.52 504.48 514.58 -0.99 0.99 0.35 -0.36
115 443.94 439.40 448.51 -1.02 1.03 0.38 -0.38
120 388.06 383.97 392.19 -1.06 1.06 0.40 -0.40
125 340.29 336.59 344.02 -1.09 1.10 0.42 -0.42

2411220423_Amphenol-JS8746A-0-20_C17635295.pdf


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