AT10
Series
TOCOS
A T T E N U A T O R S
®
10mm Square, Single-Turn, Through-Hole Sealed Cermet Attenuators
AT10P
AT10S
AT10PK
Features
10mm square, single-turn, through-hole, sealed attenuators
Cermet element
Top and side adjust styles available
Flush single-slot rotor adjustment
Optional 20mm or 30mm plastic shaft with knurled, slotted end style
50Ω, 75Ω or 600Ω nominal impedance
6.5dB, 12dB or 20dB nominal attenuation
3-pin triangular PCB patterns
Meets UL 94V-0 flammability requirements
Sealed to withstand immersion cleaning
Specifications
Electrical
Nominal Impedance
. . . . . . . . . . . . . . . . . . 50Ω, 75Ω, 600Ω
Attenuation Range at DC
Nominal Attenuation
Attenuation Tolerance
Minimum Attenuation
6.5dB
0.7dB
0.4dB max.
12dB
1.1dB
0.6dB max.
20dB
1.5dB
1.2dB max.
Environmental
Temperature Range
. . . . . . . . . . . . . . . . .
Load Life
. . . . . . . . . . . . . .
55 C to
100 C
70 C, 250 hours with rated load
∆A
)
0.5dB,
∆I
)
5%
Moisture and Load Life
. . . . . . . . . . . . . 40 C, 90-95%RH
90 minutes on, 30 minutes off,
0.2 watt, 120 cycles
∆A
)
0.5dB,
∆I
)
5%
Thermal Shock
. . . . . . . . . . . . . . . . . . . . . . 55 C, 100 C,
30 minutes each, 5 cycles without load
∆A
)
0.5dB,
∆I
)
5%
Shock
. . . . . . . . . . . . . 50G, 11ms, 6 directions, 3 times each
∆A
)
0.5dB,
∆I
)
5%
Vibration
. . . . . . . . . . . . . . . . . .10-55Hz, 1.5mm amplitude,
3 directions, 2 hours each
∆A
)
0.5dB,
∆I
)
5%
Soldering Heat Resistance
. . . . . . . . . . . 350 C, 3 seconds
∆A
)
0.1dB,
∆I
)
1%
Seal Test
. . . . . . . . . . . . . . . . . 85 C, hot water for 1 minute
Rotational Life
. . . . . . . . . . . . . . . . . . 50 cycles without load
∆A
)
1dB,
∆I
)
10%
∆A
= Attenuation Change at DC;
∆I
= Impedance Change Ratio
Power Rating
. . . . . . . . 0.2 watt at
70 C, 0 watt at
100 C
Insulation Resistance
. . . . . 100MΩ minimum at 1,000VDC
Dielectric Strength
. . . . . . . . . . . . . . . . 1,000VAC, 1 minute
Adjustment Travel
. . . . . . . . . . . . . . . . . . . . . . . . . 140
10
Mechanical
Mechanical Travel
. . . . . . . . . . . . . . . . . . . . . . . . . 150
10
Shaft Torque
. . . . . . . . 25 to 200 gf
•
cm (0.35 to 2.77 oz
•
in)
Stop Strength
. . . . . . . . . . . . . 800 gf
•
cm (11.09 oz
•
in) max.
Flammability of Plastic Materials
. . . . . . . Meets UL 94V-0
Nominal Weight
. . . . . . . . . . . . . . . . . . . . . 1.4g (P); 1.7g (S)
1.7g (PK 20mm shaft length)
2.0g (PK 30mm shaft length)
Marking
. . . . . . . . . . . Impedance, attenuation, dial locators,
terminal identification, date code
102
1177 East Tower Road, Schaumburg, IL 60173
TOCOS
AMERICA, INC.
Tel: 847-884-6664
Fax: 847-884-6665
E-mail: sales@tocos.com
www.tocos.com
AT10 Series
AT
10
PK
-
20dB
20S
500
Part Numbering System
Nominal Impedance Code:
Expressed in ohms. A three digit code
where the first two digits are significant figures, and the third digit
indicates the number of zeros that follow these figures (i.e., 500 = 50Ω;
750 = 75Ω; 601 = 600Ω ).
Shaft Length: 20S
= 13mm Shaft with Knurled, Slotted End Style.
30S
= 23mm Shaft with Knurled, Slotted End Style.
Blank
= No shaft.
Nominal Attenuation: 6.5dB
( 0.7 Attenuation Tolerance).
12dB
( 1.1 Attenuation Tolerance).
20dB
( 1.5 Attenuation Tolerance).
Dash:
Use a dash, with no space before or after the dash, to separate
Style and Nominal Attenuation. Example: AT10PK-20dB20S500
Style: P
= PCB Mount, No Shaft, Rotor Flush with Housing,
3-Pin Triangular Pattern, Top Adjust.
S
= PCB Mount, No Shaft, Rotor Flush with Housing,
3-Pin Triangular Pattern, Side Adjust.
PK
= PCB Mount, Plastic Shaft (available in 2 lengths),
3-Pin Triangular Pattern, Top Adjust Only.
Size: 10
= 10mm Square Housing.
TOCOS Series Name: AT
= Attenuator.
Packaging
Standard:
Bulk Packaging
Quantity
100 pieces per box.
Soldering and Cleaning Guidelines
For soldering, cleaning and other information, refer to the Guidelines and Precautions.
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
105
Microcontroller MCU
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