Datasheet

Document Number: 57028
Revision 01-Sep-02
www.vishay.com
36
Model 64
Vishay Spectrol
FEATURES
• Unique Ratchet Device Integral with Gear to Ensure
Long Term Reliability
• Central Pivot Locating the Gear for Improved Stability
• I.C. Style Pins for Easy PCB Insertion
• Rigid Board Mounting Achieved with Pins Secured in
Housing
• Soldered Terminations for High Reliability
• Multifinger Precious Metal Wiper For Long Term Set
Point Stability
• Double Chevron Shaft for Sealing Plus Consistant
Torque and Reliable Adjustability
• Flame Retardent Plastic Housing
3/8” Square (10mm)
Multiturn Cermet Trimmer
ELECTRICAL SPECIFICATIONS
PARAMETER
Effective Travel 25 turns nominal
Resistance Range 10Ω thru - 2MΩ
Resistance Tolerance ± 10%
End Resistance Less than 2Ω
Temperature Coefficient of Resistance 100ppm/°C, 100Ω thru 2MΩ
0 to + 250ppm/°C. below 100Ω
Power Rating 0.5 watts @ 70°C, derated linearly to zero watts @ 125°C
Maximum voltage not to exceed 300V
Dielectric Withstanding Voltage 1000VAC @ sea level, 250VAC @ 80,000 ft (24,400 meters)
Insulation Resistance 1000MΩ minimum
Contact Resistance Variation 1% or 1Ω, whichever is greater
The Model 64 cermet trimmer from Vishay Spectrol incorporate improved design features making it one of the most ad-
vanced components of its type available in Europe. Giving maximum versatility with a choice of five pin styles and top or
side adjustment. Available from 10Ω to 2MΩ, the Model 64 has 25 turns nominal travel and a resistance tolerance of
± 10%. Significant design features include the use of two Chevron sealing rings on the shaft, for more consistent torque and
improved adjustability and flame retardant housing. A precious metal wiper significantly improves long term stability, making
it particularly suitable for telecommunication applications.
ORDERING INFORMATION
64 P XXX
MODEL TERMINAL EIA STANDARD
STYLE RESISTANCE CODE
P, W, X, Y or Z
Example: 64 - P - XXX