1177 East Tower Road, Schaumburg, IL 60173

Tel: 847-884-6664

Fax: 847-884-6665

E-mail: sales@tocos.com

www.tocos.com

104

Specifications

Electrical

Standard Resistance Range . . . . . . . . . . . . . 100

Ω to 5MΩ

(standard 1, 2 & 5 sequence

plus 3M

Ω rating)

Resistance Tolerance . . . .

10% and

20% (up to 2M

Ω)

30%,

20% (3M

Ω and 5MΩ)

End Resistance . . . . . . . . . . 1% or 2

Ω, whichever is greater

Resistance Taper . . . . . . . . . . . . . . . . . . . . . . . . . . . . Linear

Peak Noise (C.R.V.) . . . . . . 2% or 3

Ω, whichever is greater

Power Rating . . . . . . . 0.25 watt at

70 C, 0 watt at

125 C

Maximum Input Voltage . . . . . . . . 300VDC or power rating,

whichever is smaller

Temperature Coefficient . . . .

100 ppm / C, 200

Ω to 1MΩ

250 ppm / C, other value

Insulation Resistance . . . . . 1,000M

Ω minimum at 500VDC

Dielectric Strength . . . . . . . . . . . . . . . . . 600VAC, 1 minute

Adjustment Travel . . . . . . . . . . . . . . . . . . . . . . . 8.5 turns

1

Mechanical

Mechanical Travel . . . . . . . . . . . . . . . . . . . . . . . 11 turns

1

Stop Strength . . . . . . . . . . . . . . . . . . . . . . . . . . Clutch action

Flammability of Plastic Materials . . . . . . . Meets UL 94V-0

Nominal Weight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3g

Marking . . . . . . . . . . . . . . . . . . Resistance code, date code,

model type, terminal identification

Environmental

Temperature Range . . . . . . . . . . . . . . . . .

55 Cto

125 C

Low Temperature Operation . . . .

55 C, 0.25 watt, 1 hour

∆T/R ) 2%

High Temperature Exposure . . . . . . . . .

125 C, 250 hours

∆T/R ) 2%, S.S. ) 1%

Load Life . . . . . . . . . . . . . . . .

70 C, 0.25 watt, 1,000 hours

∆T/R ) 2%, S.S. ) 3%

Thermal Shock . . . . . . . . . . . . . . . . . . . . . .

55 C,

125 C,

30 minutes each, 5 cycles

∆T/R ) 1%, S.S. ) 1%

Shock . . . . . . . . . . . . 100G, 6ms, 6 directions, 3 times each

∆T/R ) 1%, S.S. ) 1%

Vibration . . . . . . . . . . . . . . . . 10-2,000Hz, 1.5mm amplitude,

20G, 12 hours

∆T/R ) 1%, S.S. ) 1%

Humidity . . . . . . . . . . . . . . . . . . . . . . . .

40 C, 90-95%RH,

0.25 watt, 500 hours

∆T/R ) 3%, S.S. ) 1%

Moisture Resistance . . . . . .

10 C to

65 C, 80-98%RH,

0.25 watt, 10 cycles, 240 hours

∆T/R ) 3%

Soldering Heat Resistance . . . . . . . . . . . 350 C, 3 seconds

∆T/R ) 1%

Seal Test . . . . . . . . . . . . . . . . .

85 C, hot water for 1 minute

Rotational Life . . . . . . . . . . 200 cycles without discontinuity

∆T/R ) 5%)

∆T/R = Total Resistance Change; S.S. = Setting Stability (voltage ratio)

1/4” Square, Multi-Turn, Through-Hole Sealed Cermet Trimmers

POTENTIOMETERS

Features

1/4” square, multi-turn, through-hole, sealed cermet trimmers

11-turn design for more accurate setting

State-of-the-art brush contact design

Stop-clutch action at ends of element

Top and side adjust models

Meets UL 94V-0 flammability requirements

Sealed to withstand wave soldering and immersion cleaning