Datasheet

Document Number: 57054 For technical questions, contact: [e-mail]
www.vishay.com
Revision: 26-Jan-11 See also Application Notes: www.vishay.com/doc?51001
and www.vishay.com/doc?52029 111
248, 249
Vishay Spectrol
1/2" (12.7 mm) Conductive Plastic and Cermet
Potentiometer
FEATURES
 Model 248: 0.5 W at 70 °C
(conductive plastic element)
 Model 249: 1 W at 70 °C
(cermet element)
 Cost effective panel potentiometer
 PCB mounting
 Tests according to CECC 41000 or IEC 60393-1
 Compliant to RoHS Directive 2002/95/EC
DIMENSIONS in millimeters (inches) ± 0.5 mm (± 0.02")
X = Standards leads
E = Rear stand off D = Rear locating lugs
VISHAY
Screwdriver slot shown in mid
electrical travel
12.7 (0.500) ± 0.4
0.8 (0.30) wide × 0.8 (0.03) deep
12.7 (0.500) ± 0.4
0.41 (0.016)
6.9 (0.272)
2.54 (0.100) ± 0.25
2.54 (0.100) ± 0.25
0.5 (0.020)
1/4" - 32 NEF - 2A
Ø 3.18 (0.125) ± 0.025
19.05 (0.750) ± 0.75
Terminal
pins x 3
22.22 (0.875) ± 0.75
Mounting
surface
7.6 (0.300) ± 0.4
9.5 (0.375)
3/8" - 32 NEF - 2A
5.08 (0.200) ± 0.25
0.36 (0.014)
0.0
- 0.5
Ø 6.35 (0.250)
9.5 (0.375)
METAL SHAFT
METAL OR PLASTIC SHAFTS
0.36
2.54
PCB surface.
1.0 typ.
10.16
6.76
(0.266)
3.18
3.18
(0.125)
2.55 typ.
8.5
2.34
12.70
MTGLUG CI.
3.14
7.62