PL
IA
N
T
Features
■
Compact
■
Lightweight
■
Long life
■
Infinite resolution
■
Free shaft rotation
■
AC or DC
■
Shaft options available
■
Flexible wire leads
■
Economical
■
RoHS compliant*
*R
oH
S
CO
M
3048 Linear Motion Potentiometer
Specifications
†
Standard Electrical Travel
............................. 0.2, 0.3, 0.4, 0.5 in.
(5.08, 7.62, 10.16, 12.70 mm)
Standard Resistances
.......... 1K ohms to 50K ohms (± 20 %)
Independent Linearity ....................± 5 %
Resolution.................................... Infinite
Power Rating @ 70 °C (158 °F)
Range 2, 3............................ 0.12 watt
Range 4, 5............................ 0.25 watt
Operating Temperature Range
................................-55 °C to +125 °C
Temperature Coefficient ... 1000 PPM/°C
Insulation Resistance ........ 50 megohms
@ 500 VDC
Backlash ................................. Negligible
Shaft Actuating Force ............ 4 oz. max.
@ 70 °F
Life ..................................500,000 cycles
Shock............................ 50 G for 7 msec
Vibration .........................20 G, 10-2 kHz
Marking .........Manufacturer’s trademark,
resistance code, wiring diagram,
date code, manufacturer’s model
number and style
Specifications are typical. Contact factory for
special requirements.
† Specifications applicable from 5 % to 95 %
of electrical travel.
Product Dimensions
11.18 ± 0.38
(.44 ± .015)
4.6 ± 0.25
(.18 ± .010)
2 PLCS.
25.4
(1.00)
13.5
(.53)
9.14
(.36)
#2-56 UNC-2A
THREADED SHAFT
(STANDARD).
SHAFT SHOWN IN
RETRACTED
POSITION
2.67 ± 0.25
(.11 ± .010)
7.60 FULL THREAD
(.299)
3.18 ± 0.38
2.34
(.125 ± .015)
DIA.
(.092)
2 MOUNTING HOLES
5.60
#2 SCREW CLEARANCE
(.220)
56.39
(2.22)
MAXIMUM FILLET
1.52
(.060)
2.36 +.025/-.013
(.093 +.001/-.005)
2.13 +0.02/-0.50
DIA.
(.084 +.001/-.020)
(THIS DIMENSION APPLIES
BEYOND THE THREADED AREA
TO THE FULL DIAMETER.
SEE THE #2-56 THREAD NOTE ABOVE.)
31.75
(1.250)
3 ELECTRICALLY INSULATED LEADWIRES
152.40 MINIMUM LENGTH (28 AWG INSULATED CONDUCTOR)
(6.00)
6.99 ± 0.25
(.275 ± .010)
CHAMFER:
0.25
45° X
(0.10)
8.28 ± 0.38
(.326 ± .015)
2.36
DIA.
(.093)
How to Order
3048 L - 2 - 502
Model
Style
Range (Travel)
2 = 0.2 ” (5.08 mm)
3 = 0.3 ” (7.62 mm)
4 = 0.4 ” (10.16 mm)
5 = 0.5 ” (12.70 mm)
Resistance Value
Stainless steel shaft is available upon request.
YELLOW
1
RED
2 WIPER
GREEN
3
TOLERANCES: ±
.010
EXCEPT WHERE NOTED
(0.25)
SHAFT EXTENDED
WIRING DIAGRAM
DIMENSIONS:
MM
(INCHES)
Standard Resistance Table
Resistance
(Ohms)
1,000
2,500
5,000
10,000
20,000
50,000
Resistance
Code
102
252
502
103
203
503
REV. 01/13
*RoHS Directive 2002/95/EC Jan 27 2003 including Annex.
Specifications are subject to change without notice.
Customers should verify actual device performance in their specific applications.
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