11
P8S
www.vishay.com
Vishay Sfernice
8.5 mm Diameter Single-Turn Fully Sealed Container
Cermet Trimmer
FEATURES
Industrial grade
High quality cermet resistive track:
- 1 W at 70 C, P8ST
- 0.5 W at 70 C, P8SX and P8SY
Test according to CECC 41000 or IEC 60393-1
Wide resistance range (10 to 2.2 M )
Material categorization: for definitions of compliance
please see www.vishay.com/doc?99912
The P8S series trimmers are well adapted for all industrial
applications as their maximum resistance contact variation
is within 3 % of Rn and as they are fully sealed.
For more stringent requirements the P8P series is
recommended.
DIMENSIONS in millimeters ( 0.5 mm)
P8SX P8SY P8ST
8.5
2.54
0.5
2.54
a
Slot 0.6 wide x 0.7 deep
8.5
0.5 8.6
b
8 max
c
2.54
5 min
Thread M7 x 0.75
Shim washers
0.5 x 0.4
3.2 0.2
8.9
4.7
Panel thickness
3.5 min
Slot 0.6 wide x 0.7 deep 2.54
1
2 3
0.4
3.4 0.2
4.5 1
Ground
a
c
7.8 1 - 0
2.54 2.54
8.6 - 0.1
7.62
b
1 2 3
2.54 2.54
2.5 to 4 ma x
0.5 mi n 0.5 to 2.5
Consult Vishay Sfernice for
panel sealed type
Revision: 03-Apr-17 Document Number: 51020
1
For technical questions, contact: sferpottrimmers@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000P8S
www.vishay.com
Vishay Sfernice
ELECTRICAL SPECIFICATIONS
Resistive element Cermet
Electrical travel 270 15
Resistance range 10 to 2.2 M
Standard series E3 1 - 2.2 - 4.7 and on request 1 - 2 - 5
standard 10 %
Tolerance
on request 5 %
P8SX, P8SY 0.5 W at 70 C
Power rating
P8ST 1 W at 70 C
P8ST
1
Power rating chart
P8SX - P8SY
0.5
0
0 20 40 60 70 80 125 140
100
AMBIENT TEMPERATURE IN DEGREES CELSIUS
a c
(1) (3)
Circuit diagram
b cw
(2)
Temperature coefficient See Standard Resistance Element Table
Limiting element voltage (linear law) 250 V
Contact resistance variation 3 % Rn or 3
End resistance (typical) 1
Dielectric strength (RMS) 1000 V
Insulation resistance (500 V )1 G
DC
MECHANICAL SPECIFICATIONS
Mechanical travel 300 5
Operating torque (max. Ncm) 3
End stop torque (max. Ncm) 6
P8SX, P8SY 1.1
Unit weight (max. g)
P8ST 3.6
Terminals SnAg alloy (code e2)
ENVIRONMENTAL SPECIFICATIONS
Temperature range -55 C to +125 C
Climatic category 55/125/56
IP67
Sealing
Fully sealed
Revision: 03-Apr-17 Document Number: 51020
2
For technical questions, contact: sferpottrimmers@vishay.com
THIS DOCUMENT IS SUBJECT TO CHANGE WITHOUT NOTICE. THE PRODUCTS DESCRIBED HEREIN AND THIS DOCUMENT
ARE SUBJECT TO SPECIFIC DISCLAIMERS, SET FORTH AT www.vishay.com/doc?91000
POWER IN WATT