3048L Datasheet, PDF (1/1 Pages) Bourns Electronic Solutions – Linear Motion Potentiometer

*RoHS ^COMPLIANT
Features
■ Compact
■ Lightweight
■ Long life
■ Infinite resolution
■ Free shaft rotation
■ AC or DC
■ Shaft options available
■ Flexible wire leads
■ Economical
■ RoHS compliant*
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.
13.5
(.53)
25.4
(1.00)
2.34
(.092)
DIA.
3.18 ± 0.38
(.125 ± .015)
2 MOUNTING HOLES
#2 SCREW CLEARANCE
56.39
(2.22)
MAXIMUM
FILLET
1.52
(.060)
9.14
(.36)
#2-56 UNC-2A
THREADED SHAFT
(STANDARD).
SHAFT SHOWN IN
RETRACTED
POSITION
2.67 ± 0.25
(.11 ± .010)
5.60 7.60
(.220) (.299)
FULL THREAD
2.13
(.084
+
+
0.02/
.001/
–
–
0.50
.020)
DIA.
31.75
(1.250)
3 ELECTRICALLY INSULATED LEADWIRES
152.40 _{MINIMUM LENGTH (28 AWG INSULATED CONDUCTOR)}
(6.00)
CHAMFER:
6.99 ± 0.25
(.275 ± .010)
45°
X
0.25
(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
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
RED
2 WIPER
YELLOW
1
GREEN
3
SHAFT EXTENDED
WIRING DIAGRAM
TOLERANCES:
±
.010
(0.25)
EXCEPT
WHERE
NOTED
DIMENSIONS ARE:
MM
(INCHES)
REV. 09/04
*RoHS Directive 2002/95/EC Jan 27 2003 including Annex.
Specifications are subject to change without notice.
Customers should verify device performance in their specific applications.