NTC Type JW, JC Waterproof Clip-On Pipe Sensor

main-type-JW-thermistor_new

NTC or PTC chip thermistor on a ceramic/metal shoe assembly sealed in a polymer housing and provided with flexible twin cable connections. The housing is fitted with a spring metal clip for pipe attachment.

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Features

  • Suitable for use in conditions of high condensation and occasional immersion in water
  • Low temperature gradient (<1.8°F at 140°F (<1°C at 60°C))
  • Sensing element electrically isolated from shoe (isolation >20M Ω at 500V)
  • Type JC meets IP44 standard
  • Range of clips for pipe diameters
  • 0.51 in to 1.18 in (13 mm to 30 mm)
  • Self-adjusts to irregular pipes
  • Offers cost benefits over traditional immersion probes
  • Fast time response (1.5s typical) for JC and 3.0s for JW
  • Water resistant version (Type JW) meets IP46 standard (with connector tabs encapsulated)
  • Typical applications include gas boiler control, domestic water systems, air conditioners, radiator inlet-outlet, electric showers, vending machines

Specifications

Type JW Specifications:

Description

NTC or PTC chip thermistor on a ceramic/metal shoe assembly sealed in a polymer housing and provided with flexible twin cable connections. The housing is fitted with a spring metal clip for pipe attachment.

Options

  • Other resistance - temperature characteristics
  • Other wire lengths
  • Special pipe sizes

General Data

Minimum operating temperature 32°F (0°C)
Maximum temperature 212°F (100°C) (sensor)
185°F (85°C) (housing)
Dissipation factor ≥2mW/K (mounted on copper pipe at 77°F (25°C))
Isolation voltage 500 VDC
Clip force <50n for="" mounting="" de-mounting="" on="" pipe="" 5n="" will="" not="" cause="" rotation="" td="">
Shoe material Plated brass
Body material Nylon
Pack quantity & MOQ 200 pcs

 

Sensor TypeResponse Time (seconds)
NTC ≤4 (to 90% voltage change)
PTC ≤4 to TNF 41°F (5°C) (sensor applied to pipe at TNF 73.4°F (23°C))

NTC Data

For codes see below

CodeNominal ResistanceTolerancesB 25/85
  77°F (25°C) 140°F (60°C) 185°F (85°C) 77°F (25°C) 140°F (60°C) 185°F (85°C)  
Ω Ω Ω ±% ±°C ±% ±°C ±% ±°C K
JW103C3R5/X 9983 2500 1079 6.46 1.48 5.00 1.40 5.90 1.87 3960±1%

type-jw

PTC Data

Maximum applied voltage 30V
Maximum applied voltage for temperature sensing 2.5V

For codes see below

TNF(-20 to TNF -20°C)25°CTNF- 5°CTNF+5°CTNF+23°C
  Ω VDC Ω VDC Ω VDC Ω VDC Ω VDC
JW 060/X 60°C <=250 2.5 <=100 0.2 <=570 2.5 >=570 2.5 >=10000 2.5
JW 070/X 70°C <=250 2.5 <=100 0.2 <=570 2.5 >=570 2.5 >=10000 2.5
JW 080/X 80°C <=250 2.5 <=100 0.2 <=570 2.5 >=570 2.5 >=10000 2.5

 

Type JC Specifications:

Description

A range of temperature sensing elements on a ceramic/ metal shoe assembly, held in a polymer housing and provided with connector tabs. The housing is fitted with a spring metal clip for pipe attachment. The elements available are NTC, PTC, SLN (silicon linear PTC) and PRT (Pt).

Options

  • Other resistance – temperature characteristics
  • Special pipe sizes
  • Waterproof version – JW (see page 2)

General Data

Minimum operating temperature 32°F (0°C)
Maximum temperature 212°F (100°C) (sensor)
185°F (85°C) (housing)
Dissipation factor =2mW/K (mounted on copper pipe at 77°F (25°C))
Isolation voltage 500 VDC
Clip force <50n for="" mounting="" de-mounting="" on="" pipe="" 5n="" will="" not="" cause="" rotation="" td="">
Shoe material Plated brass
Body material Nylon
Pack quantity & MOQ 200 pcs

 

Sensor TypeResponse Time (seconds)
NTC ≤ 1.8 (to 90% voltage change)
PTC ≤ 2 (to TNF + 5°C – sensor
applied to pipe at TNF + 23°C)
SLN ≤ 3 (to 63.2% temperature change)
PRT ≤ 3 (to 63.2% temperature change)

NTC Data

For codes see below

CodeNominal ResistanceTolerancesB 25/85Identification color dot
  77°F (25°C) 140°F (60°C) 185°F (85°C) 77°F (25°C) 140°F (60°C) 185°F (85°C)    
Ω Ω Ω ±% ±°C ±% ±°C ±% ±°C K
JC502C3R5/X 4990 1250 540 6.46 1.48 5.00 1.40 5.90 1.87 3960 ± 1% Orange
JC103C3R5/X 9983 2500 1079 6.46 1.48 5.00 1.40 5.90 1.87 3960 ± 1% None
JC103C4R5/X 9925 3000 1441 6.26 1.67 5.00 1.60 5.77 2.09 3435 ± 1% Yellow

PTC Data

Maximum applied voltage 30V
Maximum applied voltage for temperature sensing 2.5V

For codes see below

 TNF(-20 to TNF -20°C)25°CTNF- 5°CTNF+5°CTNF+23°CIdentification dots
    Ω VDC Ω VDC Ω VDC Ω VDC Ω VDC  
JC060/X 60°C <=250 2.5 <=100 0.2 <=570 2.5 >=570 2.5 >=10000 2.5 White/Gray
JC070/X 70°C <=250 2.5 <=100 0.2 <=570 2.5 >=570 2.5 >=10000 2.5 White/Brown
JC080/X 80°C <=250 2.5 <=100 0.2 <=570 2.5 >=570 2.5 >=10000 2.5 White/White

Silistor Data

Code JC202SLN1/X

Measurements made at 1mA

 77°F (25°C)140°F (60°C)140°F (60°C)
Resistance Ω1980 – 20202577.1 – 2641.33024.2 – 3146.5
Temperature ±2.29°F ±4.10°F ±5.4°F
Deviation (±1.27°C) (±2.28°C) (±3.0°C)

For resistances at other temperatures use
RT = R25 (1 + α (T-25) + β (T-25)2)
Where: α = 7.88.10-3 k-1; β = 1.937.10-5 k-2 and T = temperature in °C

PRT Data

Tolerance Class A
Code JC102PRTA/X

Refer to separate tables for RvT

 32°F (0°C)77°F (25°C)140°F (60°C)185°F (85°C)
Resistance Ω1000109712321328
Temperature ±0.27°F ±0.36°F ±0.49°F ±0.58°F
Deviation (±0.15°C) (±0.2°C) (±0.27°C) (±0.32°C)

type-jw-2

 
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