Copyright©RARA Electronics Corp.

PR18

SINGLE-TURN ROTARY

POTENTIOMETERS

Description

The PR 18... single-turn, housed in a metal case, rotary carbon control potentiometers. It comprises a carbon

resistive track fitted on a resin modified paper base. Base diameter of potentiometers is 18 mm. Resistance track

can be linear-A, logarithmic-B, inverse logarithmic-C. Potentiometers are made single or tandem, with plastic or

metallic spindle. Terminals are designed for the PCB or soldering pins.

Applications

Potentiometers are widely used in electronic audio-video equipment, electric domestic equipment and outer control

elements.

Quick Reference Data

Parameter

Value

Rated resistance R

N

According E3- series (1 - 2,2 - 4,7 - 10 etc.)

Resistance range:A low (linear)

(ohms)

B low (logarithmic)

(ohms)

C low (inverse logarithmic) (ohms)

120 ÷ 2,2M

1k ÷ 1M

1k ÷ 1M

Tolerance of resistance

(%)

±5% on RN less or = 470kohms on request

±10% on RN less or = 470kohms on request

±20% on RN less or = 220kohms on request

±30% on RN more than 220kohms on request

Maximum dissipation PN at Tamb= 40oC:

A low

(W)

B low

(W)

C low

(W)

0.2

0.1

0.1

Maximum limit voltage : A low

(V)

B low

(V)

C low

(V)

200

200

200

Total mechanical angle of rotation

(

300

± 5

Synchronous characteristic:

(dB) (only for tandem potencjometers G)

- for logarithmic B at attenuation range 0 ÷ 40dB

≤2

≤4

Maximum dissipation at category temperature

25% PN

Switch data: voltage/current

120 V / 1 AAC or 16 V / 2 ADC

Climatic category

25/070/10

Marking

Marking on metal case: producer "TELPOD"; rated resistance; month and year of production.

Ordering example:

Please order by an example: We need potentiometer 18 mm; with switch; single; 47kW; linear A low; diameter

of spindle 6 mm, long 25 mm; end type of spindle P-6; for mounting on printed circuit board:

Potentiometer PRP 185 s56 47kohm A 25 P6

Packing

The potentiometers can be supplied in bulk packing in a plastic bags and in a carton box.