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TD4 Scheda tecnica(PDF) 2 Page - Welwyn Components Limited |
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TD4 Scheda tecnica(HTML) 2 Page - Welwyn Components Limited |
2 / 2 page Nickel Film Temperature Sensor TD4 © Welwyn Components Limited Bedlington, Northumberland NE22 7AA, UK Telephone: +44 (0) 1670 822181 · Facsimile: +44 (0) 1670 829465 · Email: info@welwyn-tt.com · Website: www.welwyn-tt.com 189 Issue D · 08.03 Welwyn Components 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 Solder-coated copper wire Strength The terminations meet the requirements of IEC 68.2.21 Solderability The terminations meet the requirements of IEC115-1 Clause 4.17.3.2 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. Actual Performance Long term stability (1000hrs @ 155°C) Resistance @ 25°C % 0.18 Equivalent to °C 0.4 Thermal shock (10 cycles -55°C to 155°C) Resistance @ 25°C % 0.02 Equivalent to °C 0.04 Performance Data for R0 = 100ohms Physical Data Type TD4 Small box 250 Large box 1,000 Reel 5,000 Ammo pack 1,000 Dimensions (mm) & Weight (g) L max D max f min d nom PCB Min Wt. mounting Bend nom centre Radius TD4 7.2 2.5 30 0.6 10.2 0.6 0.24 L D f d Standard Quantities Per Package TD4 tolerance vs temperature -5 -4 -3 -2 -1 0 1 2 3 4 5 -75 -50 -25 0 25 50 75 100 125 150 175 Temperature ( °C) TD4_D.qxd 13/8/03 3:12 pm Page 2 |
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