®
TOCOS
GF04Series
P O T E N T I O M E T E R S
4mm Round, Single-Turn,Through-Hole Sealed Cermet Trimmers
Features
4mm round, single-turn, through-hole, sealed cermet trimmers
Top and side adjust models
Ⅲ
Ⅲ
Compact with high 0.5 watt power rating
High setting stability with precious metal multi-contacts
Ⅲ
Ⅲ
Low noise and low temperature coefficient
Wide temperature range of
55؇C to
125؇C
Ⅲ
Ⅲ
Meets UL 94V-0 flammability requirements
Sealed to withstand wave soldering and immersion cleaning processes
Ⅲ
Ⅲ
Specifications
Electrical
Environmental
Temperature Range . . . . . . . . . . . . . . . . .
55؇C to 125؇C
Standard Resistance Range . . . . . . . . . . . . . 100Ω to 1MΩ
(standard 1, 2 & 5 sequence)
Low Temperature Operation . . . .
55؇C, 0.5 watt, 2 hours
)
ؓ
∆T/R 3%
ؓ
ؓ
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
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%
Power Rating . . . . . . . . 0.5 watt at 70؇C, 0 watt at 125؇C
Thermal Shock . . . . . . . . . . . . . . . . . . . . . .
55؇C, 125؇C,
Maximum Input Voltage . . . . . . . . 200VDC or power rating,
30 minutes each, 5 cycles
whichever is smaller
)
ؓ
)
ؓ
∆T/R
2%, S.S.
2%
ؓ
Temperature Coefficient . . . 100ppm/؇C, 200Ω to 500kΩ
Shock . . . . . . . . . . . . 100G, 6ms, 6 directions, 3 times each
ؓ2
50ppm/؇C, other values
)
ؓ
)
ؓ
∆T/R
1%, S.S.
1%
Insulation Resistance . . . . . 1,000MΩ minimum at 500VDC
Dielectric Strength . . . . . . . . . . . . . . . . . 500VAC, 1 minute
Adjustment Travel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 190؇
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
Mechanical
)
)
ؓ
ؓ
∆T/R
3%, S.S.
1%
ؓ
Mechanical Travel . . . . . . . . . . . . . . . . . . . . . . . . . 230؇ 10؇
Moisture Resistance . . . . . . 10؇C to 65؇C, 80-98%RH,
•
•
Shaft Torque . . . . . . . . . . . . . . 150 gf cm (2.08 oz in) max.
0.5 watt, 10 cycles, 240 hours
)
ؓ
∆T/R
3%
•
•
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
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)
TOCOSAMERICA,INC.
36
1177 East Tower Road, Schaumburg, IL 60173 Tel: 847-884-6664 Fax: 847-884-6665 E-mail: sales tocos.com www.tocos.com
@
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