BI Technologies Corporation
4200 Bonita Place, Fullerton, CA 92835 USA
Phone: 714 447 2345 Website: www.bitechnologies.com
4mm Square Multiturn
Surface Mount
Cermet Trimming Potentiometer
Model 44
Seal 85°C Fluorinert® (No Leaks)
Temperature Coefficient ±100 ppm/°C (<100 Ohms = ±250 ppm/°C)
Operating Temperature Range –65°C to +150°C
Thermal Shock Five cycles –65°C to +150°C (2% ∆RT, 1% ∆VR)
Moisture Resistance Ten 24 hour cycles (2% ∆RT, IR 10 Megohms Min.)
Shock 6 ms sawtooth, 100 G’s (1% ∆RT, 1% ∆VR)
Vibration 20 G’s, 10 to 2,000 Hz (1% ∆RT, 1% ∆VR)
Rotational Life 200 cycles (3% ∆RT, 1% CRV)
Load Life 1,000 hours at 85°C & 0.25 Watts (2% ∆RT, 1% CRV)
Resistance to Solder Heat 260°C for 10 sec. (1% ∆RT)
Temperature Exposure 215°C for 3 min. Max. (1% ∆RT)
Solderability Per MIL-STD-202, Method 208
ENVIRONMENTAL
Standard Resistance Range 10 Ohms to 2 Megohms
Standard Resistance Tolerance ±10% (<100 Ohms = ±20%)
Input Voltage 300 Vdc Max. or rms not to exceed power rating
Slider Current 100 mA Max. or within rated power, whichever is less
Power Rating 0.25 Watts at 85°C derating to 0 at 150°C
End Resistance 1% or 2 Ohms Max., whichever is greater
Actual Electrical Travel 9 turns nominal
Dielectric Strength 600 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.
May 19, 2010 Model 44 page 1 of 3
• Space saving SMD package for the most compact board designs
• Sealed to withstand aggressive water wash
• Long life - set and forget construction
• BI quality and reliability
• Available in top and side adjustment versions and J-Hook or gull wing termination
FEATURES AND BENEFITS