TOCOS AMERICA, INC.
1177 East Tower Road, Schaumburg, IL 60173 Tel: 847-884-6664 Fax: 847-884-6665 E-mail: sales
@
tocos.com www.tocos.com
36
Specifications
Electrical
Standard Resistance Range . . . . . . . . . . . . . 100Ω to 1MΩ
(standard 1, 2 & 5 sequence )
Resistance Tolerance . . . . . . . . . . . . . . .
%
10% and
%
20%
End Resistance . . . . . . . . . . 1% or 3Ω, whichever is greater
Resistance Taper . . . . . . . . . . . . . . . . . . . . . . . . . . . . Linear
Peak Noise (C.R.V.) . . . . . . 2% or 3Ω, whichever is greater
Power Rating . . . . . . . . 0.5 watt at
~
70&C, 0 watt at
~
125&C
Maximum Input Voltage . . . . . . . . 200VDC or power rating,
whichever is smaller
Temperature Coefficient . . .
%
100 ppm/&C, 200Ω to 500kΩ
%2
50ppm /&C, other values
Insulation Resistance . . . . . 1,000MΩ minimum at 500VDC
Dielectric Strength . . . . . . . . . . . . . . . . . 500VAC, 1 minute
Adjustment Travel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190&
Mechanical
Mechanical Travel . . . . . . . . . . . . . . . . . . . . . . . . . 230&
%
10&
Shaft Torque . . . . . . . . . . . . . . 150 gf
•
cm (2.08 oz
•
in) max.
Stop Strength . . . . . . . . . . . . . . 200 gf
•
cm (2.77 oz
•
in) min.
Flammability of Plastic Materials . . . . . . . Meets UL 94V-0
Nominal Weight . . . . . . . . . . . . . . . . 0.2g ( W, U ); 0.3g (S, V)
Marking . . . . . . . . . . . . . . . . . . . Resistance code, date code
Environmental
Temperature Range . . . . . . . . . . . . . . . . . !55&Cto
~
125&C
Low Temperature Operation . . . . !55&C, 0.5 watt, 2 hours
∆T/R
)
%
3%
High Temperature Exposure . . . . . . . . .
~
125&C, 250 hours
∆T/R
)
%
2%, S.S.
)
%
1%
Load Life . . . . . . . . . . . . . . . . . .
~
70&C, 0.5 watt, 100 hours
∆T/R
)
%
3%, S.S.
)
%
2%
Thermal Shock . . . . . . . . . . . . . . . . . . . . . . !55&C,
~
125&C,
30 minutes each, 5 cycles
∆T/R
)
%
2%, S.S.
)
%
2%
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,
0.5 watt, 500 hours
∆T/R
)
%
3%, S.S.
)
%
1%
Moisture Resistance . . . . . .
!
10&C to
~
65&C, 80-98%RH,
0.5 watt, 10 cycles, 240 hours
∆T/R
)
%
3%
Soldering Heat Resistance . . . . . . . . . . . 350&C, 3 seconds
∆T/R
)
%
2%
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)
GF04 Series
4mm Round, Single-Turn, Through-Hole Sealed Cermet Trimmers
TOCOS
®
POTENTIOMETERS
Features
n
4mm round, single-turn, through-hole, sealed cermet trimmers
n
Top and side adjust models
n
Compact with high 0.5 watt power rating
n
High setting stability with precious metal multi-contacts
n
Low noise and low temperature coefficient
n
Wide temperature range of !55&C to ~125&C
n
Meets UL 94V-0 flammability requirements
n
Sealed to withstand wave soldering and immersion cleaning processes
