44 Model Datasheet by TT Electronics/BI

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Model 44
Cermet Trimming
Potentiometer
© TT electronics plc Issue C 04/2019 Page 1
General Note
TT Electronics reserves the right to make changes in product specification without
notice or liability. All information is subject to TT Electronicsown data and is
considered accurate at time of going to print.
TT Electronics | BI Technologies
413 Rood RD, Suite 7
Calexico, CA 92231
Ph: + 1 (714) 447-2345
www.ttelectronics.com/bi-technologies
Applications:
Any application requiring adjustability or calibration
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 construction
BI quality and reliability
Available in top and side adjustment versions and J-Hook or gull wing
termination
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 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 minimum
Resolution Essentially infinite
Contact resistance variation 1% or 3 Ohm max., whichever is greater
Environmental
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 saw-tooth, 100 Gs (1% RT, 1% VR)
Vibration 20 Gs, 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. maximum (1% RT)
Solderability Per MIL-STD-202, method 208
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© TT electronics plc
General Note
TT Electronics reserves the right to make changes in product specification without
notice or liability. All information is subject to TT Electronicsown data and is
considered accurate at time of going to print.
Model 44
Cermet Trimming Potentiometer
Issue C 04/2019 Page 2
TT Electronics | BI Technologies
413 Rood RD, Suite 7
Calexico, CA 92231
Ph: + 1 (714) 447-2345
www.ttelectronics.com/bi-technologies
Packaging
Mechanical
Mechanical stops Clutch action, both ends
Torque, starting 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 direction 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)
Option: Anti-static tubes. All units oriented with #1 pin to same side. Tube capacity = 100 units.
Ordering Information
Circuit Diagram
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© TT electronics plc
General Note
TT Electronics reserves the right to make changes in product specification without
notice or liability. All information is subject to TT Electronicsown data and is
considered accurate at time of going to print.
Model 44
Cermet Trimming Potentiometer
Issue C 04/2019 Page 3
TT Electronics | BI Technologies
413 Rood RD, Suite 7
Calexico, CA 92231
Ph: + 1 (714) 447-2345
www.ttelectronics.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

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