| Allicdata Part #: | SM-42B500-ND |
| Manufacturer Part#: |
SM-42B500 |
| Price: | $ 1.72 |
| Product Category: | Potentiometers, Variable Resistors |
| Manufacturer: | Nidec Copal Electronics |
| Short Description: | TRIMMER 50 OHM 0.25W SMD |
| More Detail: | 50 Ohms 0.25W, 1/4W Gull Wing Surface Mount Trimme... |
| DataSheet: |  SM-42B500 Datasheet/PDF |
| Quantity: | 1000 |
| Moisture Sensitivity Level (MSL): | 1 (Unlimited) |
| 50 +: | $ 1.55837 |
| 100 +: | $ 1.49600 |
| 250 +: | $ 1.43366 |
| 500 +: | $ 1.18431 |
| 1000 +: | $ 1.12198 |
| 5000 +: | $ 0.93498 |
| Series: | SM4 |
| Packaging: | Bulk |
| Moisture Sensitivity Level (MSL): | -- |
| Part Status: | Active |
| Resistance: | 50 Ohms |
| Power (Watts): | 0.25W, 1/4W |
| Tolerance: | ±10% |
| Temperature Coefficient: | ±100ppm/°C |
| Number of Turns: | 11 |
| Adjustment Type: | Side Adjustment |
| Resistive Material: | Cermet |
| Mounting Type: | Surface Mount |
| Termination Style: | Gull Wing |
| Size / Dimension: | Rectangular - 0.189" x 0.181" Face x 0.154" H (4.80mm x 4.60mm x 3.90mm) |
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Trimmer Potentiometers are widely used in a variety of electronic circuits. Among them, SM-42B500 is a kind of trimmer potentiometer which is widely used in power supplies and audio systems. This article mainly mainly discusses the application field and working principle of SM-42B500.
SM-42B500 is a kind of cost-effective trimmer potentiometer which is mainly used in applications where a medium-precision adjustment is required. It can be assembled into an electronic device, and then connected to a microcontroller, allowing the output characteristics of the device to be tuned or adjusted. One of the most common applications of SM-42B500 is to adjust the output voltage of power supplies. It is also widely used in sound system to adjust the overall volume.
The working principle of SM-42B500 is mainly based on the ability of the resistor to provide electrical continuity. A three-terminal device (SM-42B500) is composed of a stationary resistor and a wiper that slides electrically to provide a variable resistance between the two leads. The stationary resistor is composed of two resistors. The upper terminal is connected to one end of the two resistors, while the other end is connected to the wiper. The second terminal is used to adjust the voltage, that is, the wiper will move to vary the volume of the resistor when the voltage is adjusted. The last terminal is connected to the second end of the two resistors and the third terminal is connected to ground.
SM-42B500 is a three-terminal trimmer potentiometer, with two terminals (one for fixed resistors and one for the wiper) connected to each other by a metal poor. This poor is making contact against a resistive surface. The wiper is connected to the adjustable resistor, and the third terminal is connected to ground or the power source. The voltage at the first terminal can be adjusted by the movement of the wiper. As the wiper moves, it touches different points along the resistive layer, varying the resistance between the two terminals.
In conclusion, SM-42B500 is a cost-effective trimmer potentiometer with medium-precision accuracy. It is used to adjust the output voltage of power supplies and adjust the overall volume of sound systems, which is based on a three-terminal device composed of a stationary resistor and a wiper that slides electrically to provide a variable resistance between the two leads.
The specific data is subject to PDF, and the above content is for reference
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