BI Technologies Corporation
4200 Bonita Place, Fullerton, CA 92835 USA
Phone: 714 447 2345 Website: www.bitechnologies.com
1/4” Square
Sealed Single Turn
Thru-Hole
Cermet Trimming Potentiometer
Model 25
Seal 85°C Fluorinert® (No Leaks)
Temperature Coefficient ±100 ppm/°C
Operating Temperature Range –55°C to +125°C
Thermal Shock Five cycles –55°C to +125°C (2% ∆RT, 2% ∆VR)
Moisture Resistance Ten 24 hour cycles (3% ∆RT)
Shock 6 ms sawtooth, 100 G’s (1% ∆RT, 1% ∆VR)
Vibration 30 G’s, 10 to 2,000 Hz (1% ∆RT, 1% ∆VR)
High Temperature Exposure 250 hours at 125°C (2% ∆RT, 2% ∆VR)
Rotational Life 200 cycles (2 Ohms or 3% ∆RT, whichever is greater)
Load Life 1,000 hours at 70°C & 0.5 Watts (3% ∆RT, 3% ∆VR)
Resistance to Solder Heat 350°C for 3 seconds or 260°C for 10 seconds (1% ∆RT)
ENVIRONMENTAL
Standard Resistance Range 10 Ohms to 2 Megohms
Standard Resistance Tolerance ±10%
Input Voltage 300 Vdc Max. or rms not to exceed power rating
Power Rating 0.5 Watts at 70°C derating to 0 at 125°C
End Resistance 1% or 2 Ohms Max., whichever is greater
Actual Electrical Travel 210° nominal
Dielectric Strength 900 Vrms
Insulation Resistance 1,000 Megohms Min.
Resolution Essentially infinite
Contact Resistance Variation 1% or 3 Ohms Max., whichever is greater
ELECTRICAL
Specifications subject to change without notice.
Fluorinert® is a registered trademark of 3M Company.
Mechanical Stops Solid
Stop Strength 7 oz.-in. Min. (500 g-cm)
Torque 3 oz.-in. Max. (200 g-cm)
Weight 0.02 oz. nominal (0.6 grams)
MECHANICAL
January 27, 2014 Model 25 page 1 of 4