Vertical adjustable PT15 15mm carbon film trim-potentiometer, dust
proof
Description:
A trimmer potentiometer is a variable resistor that is designed to
be infrequently adjusted, usually just at the point of manufacture
or when the unit is being recalibrated. They are placed along the
circuit at critical points that need to carefully tuned for optimal
functionality. Usually, a small screw at the top of the resistor
body makes the resistance adjustment. The body itself is mounted
directly onto the board. Because they are calibrating devices,
their resistive range is often very small, and very accurate
settings can be achieved through adjustment.
Construction:
Potentiometers consist of a resistive element, a sliding contact
(wiper) that moves along the element, making good electrical
contact with one part of it, electrical terminals at each end of
the element, a mechanism that moves the wiper from one end to the
other, and a housing containing the element and wiper.The lead
screw packages can have a higher power rating because of their
increased surface area.
Electrical specifications
| Range of value | 100Ω≤Rn≤5MΩ (Decad.1.0-2.0-2.2-2.5-4.7-5.0) |
| Tolerance | 100Ω≤Rn≤1MΩ ±20% ; 1MΩ≤Rn≤5MΩ ±30% |
| Max. voltage | 250 VDC(lin) 125 VDC(no lin) |
| Rated power | 0.25W(lin) 0.12W(no lin) |
| Taper | lin; log; alog |
| Residual resistance | ≤5‰ Rn(3Ω min) |
| Equivalent noise resistance | ≤3% Rn(3Ω min) |
| Operating temperature | -25°C~70°C
|
Features:
• Carbon resistive element
• Dustproof enclosure
• Polyester substrate
• Also upon request:
* Wiper positioned at 50% or fully clockwise
* Supplied in magazines for automatic insertion
* Long life model for low cost control potentiometer application
* Self extinguishable plastic UL 94V-0
* Cut track option
* Special tapers
* Mechanical detents
* Low & extra low torque versions
* Special switch option
Application:
Potentiometers are used to adjust the level of analog signals (for
example volume controls on audio equipment), and as control inputs
for electronic circuits. For example, a light dimmer uses a
potentiometer to control the switching of a TRIAC and so indirectly
to control the brightness of lamps.
Resistance SR code table:
| Resistance | Code |
| 100Ω | 101 |
| 500Ω | 501 |
| 1KΩ | 102 |
| 2KΩ | 202 |
| 3.3KΩ | 332 |
| 4.7KΩ | 472 |
| 5KΩ | 502 |
| 10KΩ | 103 |
| 20KΩ | 203 |
| 22KΩ | 223 |
| 47KΩ | 473 |
| 50KΩ | 503 |
| 100KΩ | 104 |
| 200KΩ | 204 |
| 250KΩ | 254 |
| 500KΩ | 504 |
| 1MΩ | 105 |
| 2MΩ | 205 |
| 2.2MΩ | 225 |
Mounting methods:
Rotors available:
