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Resistors And
Resistive Applications
PR24
SINGLE-TURN ROTARY
POTENTIOMETERS
Description
The PR 24 series are single-turn, housed in a metal case, rotary carbon control potentiometers. They comprise a
carbon resistive track fitted on a resin modified paper base. Base diameter of potentiometers is 24 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 PCB or soldering pins.
Applications
Potentiometers are widely used in electronic audio video equipment, electric domestic equipment and outer control
elements in professional use too.
Quick Reference Data
Parameter
Value
Nominal resistance RN
Resistance range: A low (linear) (ohms)
B low (logarithmic) (ohms)
According series E3 (1 - 2, 2 - 4, 7 - 10 etc.)
100 ÷ 2,2M
1k ÷ 1M
1k ÷ 1M
C low (reverse logarithmic) (ohms)
±5% on R less or = 470kohms on request
N
±10% on R more than = 470kohms on request
Tolerance of resistance
(%)
N
±20% on R less or = 470kohms on request
N
±30% on R more than 470kohms on request
N
o
0.5
0.25
0.25
Max. dissipation P at T
= 40 C: A low
(W)
N
amb
B low
C low
A law
B law
C law
(W)
(W)
(V)
(V)
(V)
Maximum working voltage:
250
250
250
Insulating voltage
(V
)
DC
350 /2100 (pulse value)
300±10
Total mechanical angle of rotation
(o)
Maximum dissipation at category temperature
Climatic category
25% PN
25/070/10
250V/3A AC
Switch data: voltage/current
Marking
Marking on metal case: producer "TELPOD"; rated resistance; month and year of production.
Ordering example:
Please order according example:
1. We need potentiometers 24 mm diameter; without switch; resistance 47kohms; linear A law; diameter of spindle
6 mm, long of spindle 40 mm; type of spindle end P-6.
Potentiometer PR 246 47kohms A 40 P6
2. We need potentiometers 24 mm diameter; with switch; resistance 22kohms; logarithmic C; plastic spindle,
diameter of spindle 6 mm, long of spindle 25 mm; type of spindle end P-5
Potentiometer PR 2462 s55 22kohms C 25 P5
Packing
The potentiometers can be supplied in bulk packing in a plastic bags and in a carton box.
Web: http://www.raraohm.com
Email: sg@raraohm.com
Date: 2012-12-12 Copyright©RARA Electronics Corp.