3048

*R
oH
S
CO
M
PL
IA
N
T
Features
■ Compact
■ Flexible wire leads
■ Lightweight
■ Economical
■ Long life
■ RoHS compliant*
■ Infinite resolution
■ Free shaft rotation
■ AC or DC
■ Shaft options available
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
Product Dimensions
13.5
(.53)
11.18 ± 0.38
(.44 ± .015)
4.6 ± 0.25
(.18 ± .010)
2 PLCS.
#2-56 UNC-2A
THREADED SHAFT
(STANDARD).
SHAFT SHOWN IN
RETRACTED
POSITION
2.67 ± 0.25
(.11 ± .010)
3.18 ± 0.38
2.34
(.125 ± .015)
DIA.
(.092)
2 MOUNTING HOLES
5.60
#2 SCREW CLEARANCE
(.220)
56.39
(2.22)
7.60 FULL THREAD
(.299)
31.75
(1.250)
3 ELECTRICALLY INSULATED LEADWIRES
152.40 MINIMUM LENGTH (28 AWG INSULATED CONDUCTOR)
(6.00)
8.28 ± 0.38
(.326 ± .015)
How to Order
YELLOW
1
GREEN
3
SHAFT EXTENDED
6.99 ± 0.25
(.275 ± .010)
TOLERANCES: ±
.010
EXCEPT WHERE NOTED
(0.25)
DIMENSIONS:
WIRING DIAGRAM
CHAMFER:
0.25
45° X
(0.10)
2.36
DIA.
(.093)
RED
2 WIPER
3048 L - 2 - 502
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.)
2.36 +.025/-.013
(.093 +.001/-.005)
1.52
MAXIMUM FILLET
(.060)
Specifications are typical. Contact factory for
special requirements.
† Specifications applicable from 5 % to 95 %
of electrical travel.
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.
9.14
(.36)
25.4
(1.00)
MM
(INCHES)
Standard Resistance Table
Resistance
(Ohms)
Resistance
Code
1,000
2,500
5,000
10,000
20,000
50,000
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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