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: