Model 44
Cermet Trimming Potenometer
© TT electronics plc Issue C 04/2019 Page 1
General Note
TT Electronics reserves the right to make changes in product specicaon without
noce or liability. All informaon is subject to TT Electronics’ own data and is
considered accurate at me of going to print.
TT Electronics | BI Technologies
Circulo de la Amistad #102 PIMSA IV Mexicali B.C. Mexico C.P 21210
Ph: + 1 (714) 447-2345
www.electronics.com/bi-technologies
Applicaons:
• Any applicaon requiring adjustability or calibraon
• Medical
• Consumer electronics
Features:
• Space saving SMD package for the most compact board designs
• Sealed to withstand aggressive water wash
• Long life—set and forget construcon
• BI quality and reliability
• Available in top and side adjustment versions and J-Hook or gull wing
terminaon
Electrical
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 rang
Slider current 100 mA max. or within rated power, whichever is less
Power rang 0.25 Was at 85°C derang 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
Insulaon resistance 1,000 Megohms minimum
Resoluon Essenally innite
Contact resistance variaon 1% or 3 Ohm max., whichever is greater
Environmental
Seal 85°C Fluorinert® (No Leaks)
Temperature coecient ±100 ppm/°C (<100 Ohms = ±250 ppm/°C)
Operang 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 saw-tooth, 100 G’s (1% ∆RT, 1% ∆VR)
Vibraon 20 G’s, 10 to 2,000 Hz (1% ∆RT, 1% ∆VR)
Rotaonal life 200 cycles (3% ∆RT, 1% CRV)
Load life 1,000 hours at 85°C & 0.25 Was (2% ∆RT, 1% CRV)
Resistance to solder heat 260°C for 10 sec. (1% ∆RT)
Temperature exposure 215°C for 3 min. maximum (1% ∆RT)
Solderability Per MIL-STD-202, method 208
© TT electronics plc
General Note
TT Electronics reserves the right to make changes in product specicaon without
noce or liability. All informaon is subject to TT Electronics’ own data and is
considered accurate at me of going to print.
Model 44
Cermet Trimming Potenometer
Issue C 04/2019 Page 2
TT Electronics | BI Technologies
Circulo de la Amistad #102 PIMSA IV Mexicali B.C. Mexico C.P 21210
Ph: + 1 (714) 447-2345
www.electronics.com/bi-technologies
Packaging
Mechanical
Mechanical stops Clutch acon, both ends
Torque, starng 3 oz.-in. max. (0.021 N-m)
Weight 0.01 oz. nominal (0.3 grams)
Standard: Embossed Tape & Reel. All units oriented with #1 pin to the right of the direcon of feed.
13” Reel 7” Reel
Pin Style G & J W G & J W
Tape Width = 12 mm 16 mm 12 mm 16 mm
Sprocket = 4 mm pitch 4 mm pitch 4 mm pitch 4 mm pitch
Capacity = 1,000 units 1,000 units 500 units 250 units
Reel Diameter = 13” (330.2 mm) 7” (178 mm)
Opon: An-stac tubes. All units oriented with #1 pin to same side. Tube capacity = 100 units.
Ordering Informaon
Circuit Diagram
© TT electronics plc
General Note
TT Electronics reserves the right to make changes in product specicaon without
noce or liability. All informaon is subject to TT Electronics’ own data and is
considered accurate at me of going to print.
Model 44
Cermet Trimming Potenometer
Issue C 04/2019 Page 3
TT Electronics | BI Technologies
Circulo de la Amistad #102 PIMSA IV Mexicali B.C. Mexico C.P 21210
Ph: + 1 (714) 447-2345
www.electronics.com/bi-technologies
Top Adjustment Side Adjustment
Standard Resistance Values
Solder Pad Layout
10 100 1K 10K 50K 250K 2Meg
20 200 2K 20K 100K 500K
50 500 5K 25K 200K 1Meg