PTC Heaters

PTC HEATERS (Self-Regulating)
Providing Electronic Solutions
Self-regulating heater bespoke assembly, suitable for adhesive mounting or clamping.
Typical applications - Sensitive electronics that should be maintained at an optimum heat temperature.
Description:~
A pre-calibrated set of PTC discs mounted in series, onto a copper substrate, with lead attachments.
Specification:~
Features
Options
Self-regulating heater
Wire – stranded - solid
Suitable for adhesive or clamp mounting
Wire lengths
Typical thickness 3mm
ROHS compliant
Wire Insulation
Customised Copper substrate
Resistances and switch temperatures can be reviewed.
Currently Available PTC Outputs:~
Type 1
Type 2
Operating Temperature
-40°C + 85°C
-35°C to +85°C
Suitable for voltage
22 to 35 V dc
12 – 28 V dc or ac
Breakdown voltage
Power output
Resistance
VBR
-40°C 5.5W max
TA
-40°C 5.5W max
TA
+50°C 0.2W max
TA
+50°C 0.2W max
15.0 ohms ±10%
R-35
2.5 ohms nominal
4.5k ohms Min
R+50
750 ohms nominal
R-40
R+85
Switching Temperature
VBR
TA
R+50
Surface temperature
>100 Vrms
2.0M ohms
Min
TA +35°C at ambient –20°C
TA +25°C at ambient 35°C
TA +20°C at –50°C ambient
TA +20°C at –50°C ambient
Tb -10°C ref
Tb -5°C ref
Notes:~
Samples are supplied for evaluation purposes only. If it is intended to subject the product to a qualification
approval program involving endurance & environmental tests please consult Willow Technologies Ltd.
Willow Technologies Ltd. Shawlands Court, Newchapel Road, Lingfield, Surrey, RH7 6BL, United Kingdom
Tel: + 44 (0) 1342 835234 Fax: + 44 (0) 1342 834306 [email protected] http://www.willow.co.uk