TD4 WELWYN [Welwyn Components Limited], TD4 Datasheet - Page 2

• Manufacturer Part Number: TD4
• Description: Nickel Film Temperature Sensor
• Manufacturer: WELWYN [Welwyn Components Limited]

Nickel Film
Temperature Sensor
TD4
Construction
A nickel film is deposited onto a high quality ceramic rod.
Nickel-plated steel caps are force fitted to the rod and
termination wires are welded to the caps.
A laser is used to adjust the resistance value of the sensor by
cutting a helix into the film The body is protected with a high
purity organic coating.
Terminations
Material
Strength
Solderability
© Welwyn Components Limited
Telephone: [phone] · Facsimile: [phone] · Email: [e-mail] · Website: www.welwyn-tt.com
Performance Data for R0 = 100ohms
Physical Data
Long term stability (1000hrs @ 155°C)
Thermal shock (10 cycles -55°C to 155°C)
Dimensions (mm) & Weight (g)
TD4
L max
7.2
Solder-coated copper wire
The terminations meet the requirements of
IEC 68.2.21
The terminations meet the requirements of
IEC115-1 Clause 4.17.3.2
D max
-1
-2
-3
-4
-5
5
4
3
2
1
0
2.5
-75
-50
f min
Bedlington, Northumberland NE22 7AA, UK
30
-25
d nom
0.6
TD4 tolerance vs temperature
Resistance @ 25°C
Equivalent to
Resistance @ 25°C
Equivalent to
0
mounting
centre
10.2
PCB
25
Temperature (°C)
Radius
Bend
Min
0.6
50
Marking
TD4: Type reference, resistance and tolerance code.
Packaging
The standard packaging is in boxes. Taped sensors (on reel or
in ammo pack) can also be supplied by special request.
Standard Quantities Per Package
Type
Small box
Large box
Reel
Ammo pack
nom
0.24
Wt.
75
°C
°C
%
%
100
d
125
D
Actual Performance
Welwyn Components
150
0.18
0.02
0.04
0.4
L
175
1,000
5,000
1,000
TD4
250
f
Issue D · 08.03
189