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PTC THERMISTORS: TYPE YLS953
PTC THERMISTORS:
TYPE YLS953
LIQUID LEVEL SENSING
Crown Industrial Estate, Priorswood Road
808 US Highway 1
967 Windfall Road
Taunton, Somerset TA2 8QY UK
Edison, New Jersey 08817-4695 USA
St Marys, Pennsylvania 15857-3397 USA
Tel +44 (0) 1823 335200
Tel +1 (732) 287 2870
Tel +1 (814) 834 9140
Fax +44 (0) 1823 332637
Fax +1 (732) 287 8847
Fax +1 (814) 781 7969
DESCRIPTION:
PTC chip in DO-7 style glass package (diode out-
line). Designed for level control in fuel oil storage
tanks and other level/fluid flow applications.
DATA:
V max at 75°C with Rs = 100 ohms
18 volts dc.
Operating temperature range at V max:
In still air ..................................25°C to +75°C
In still oil (type Shell S5585)....25°C to +50°C
Switch temperature ........................160°C nom.
Resistance at 25°C ..........................115220 CURRENT VALUES:
Notes:
1. Current values measured with device oriented
vertically, the identified end connected to the
positive pole and connections made 23-27mm
from the glass body.
2. Packing: 100 devices in a plastic bag.
Applied Voltage
10V dc (±2% /-0)
14V dc (+2% /-0)
18V dc (+2% /-0)
Static I max value
Still Air @ 25°C
(+0/-1°C) 47mA 33.5mA 27mA
80mA nominal
Still Oil @+50°C
(+1 /-0°C) 52.5mA 39.8mA 33mA
DIMENSIONS:



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