Precision Electronic Components: Potentiometers: Series R Features

Series R Specs
Precision Series R - 3/4 Watt 1/4" shaft diameter

Series R potentiometers feature carbon composition elements and a compact size for applications requiring high reliability in extreme environments.
Features hot molded carbon element all metal shaft and housing sealed shaft and housing quality meeting or exceeding MIL-R-94	Options special tapers fourth terminal customer specified marking
Electrical Specifications Resistance range, linear taper: 100 to 5 Meg Resistance range, logarithmic taper: 150 to 1 Meg Resistance tolerance: ±10% or ±20% Resistance taper: linear, logarithmic, reverse logarithmic; other tapers by special order Power rating: 0.75 watts at 70°C derated to 0 watts at 120°C Insulation resistance: dry: 10K Meg wet: 100K Meg Dielectric strength: 900 V RMS at sea level Operating voltage: 500 V, subject to power rating	Mechanical Specifications Mechanical rotation: 300° Operating torque: 1 oz/in to 6 oz/in Rotational life: 25,000 cycles Environmental Specifications Operating temperature: -65°C to +125°C Resistance to soldering heat: 350°C for 5 seconds Humidity range: per MIL-R-94 Vibration range: per MIL-R-94 Shock resistance: per MIL-R-94 Load life: 1000 hours at 70°C

Precision Electronic Components Ltd.
4 Oakland Ave.
Weston, Ontario, Canada
M9M 2H8

Tel. (416) 744-8840
Fax (416) 744-6545
info@precisionelectronics.com