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500K Cermet(Pack of 5)

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Component Name

500K Cermet (Pack of 5)

Description

The 500K Cermet (Pack of 5) is a set of five precision cermet potentiometers, designed for precise voltage division and signal adjustment in a wide range of IoT applications. Cermet potentiometers are a type of resistive component that combines the benefits of metal film and cermet materials to provide a high degree of accuracy, reliability, and durability.

Functionality

  • Voltage Division: The potentiometers can be used to divide a voltage source into two parts, allowing for precise adjustment of signal levels in IoT devices.
  • Signal Attenuation: The cermet potentiometers can be used to attenuate or reduce the amplitude of a signal, which is essential in IoT applications where signal levels need to be adjusted for optimal performance.
  • Impedance Matching: The potentiometers can be used to match the impedance of different components or circuits in IoT devices, ensuring maximum power transfer and minimizing signal reflections.
The 500K Cermet potentiometers in this pack are designed to perform the following functions

Key Features

  • Resistance Value: 500 kilohms (k) 10%
  • Tolerance: 10%
  • Power Rating: 0.5 watts (W)
  • Operating Temperature: -25C to +70C
  • Insulation Resistance: > 100 megohms (M) at 500 VDC
  • Dielectric Strength: 500 VAC for 1 minute
  • Rotation Angle: 300 degrees
  • Linearity: 1% (at 20C)
  • Noise Ratio: -60 dB ( typical)
  • Shaft Diameter: 6 mm
  • Shaft Length: 20 mm
  • Body Size: 12 mm x 12 mm x 20 mm

Packaging

The 500K Cermet (Pack of 5) comes with five individual potentiometers, each packaged in a separate plastic bag to prevent damage during shipping and storage.

Applications

  • Industrial Automation: For adjusting signal levels and impedance matching in industrial control systems.
  • Audio Equipment: For volume control, tone adjustment, and impedance matching in audio devices.
  • Medical Devices: For precise voltage division and signal adjustment in medical equipment.
  • Consumer Electronics: For volume control, tone adjustment, and impedance matching in consumer electronics.
  • Robotics and Automation: For adjusting signal levels and impedance matching in robotics and automation systems.
The 500K Cermet potentiometers are suitable for a wide range of IoT applications, including

Compliance

  • RoHS (Restriction of Hazardous Substances)
  • REACH (Registration, Evaluation, Authorization, and Restriction of Chemicals)
The 500K Cermet potentiometers comply with the following standards and regulations

Warranty

The 500K Cermet (Pack of 5) comes with a 12-month warranty against manufacturing defects and faulty workmanship.

Pin Configuration

  • 500K Cermet Potentiometer Documentation
  • Overview
  • The 500K Cermet potentiometer is a type of variable resistor commonly used in IoT and electronic projects. This documentation provides a detailed explanation of the pins and their connections.
  • Pinouts
  • The 500K Cermet potentiometer has three pins, labeled as follows:
  • 1. Pin 1: CW (Clockwise) Terminal
  • Function: Connects to the positive voltage source or the input signal.
  • Description: This pin is the clockwise terminal, which means that when the potentiometer is rotated clockwise, the resistance between this pin and the wiper (Pin 3) decreases.
  • 2. Pin 2: CCW (Counter-Clockwise) Terminal
  • Function: Connects to the negative voltage source or the ground.
  • Description: This pin is the counter-clockwise terminal, which means that when the potentiometer is rotated counter-clockwise, the resistance between this pin and the wiper (Pin 3) decreases.
  • 3. Pin 3: Wiper Terminal
  • Function: Connects to the output signal or the load.
  • Description: This pin is the wiper terminal, which moves along the resistive track as the potentiometer is rotated. The wiper terminal is connected to the output signal or the load.
  • Connection Structure
  • Here is a step-by-step guide to connecting the 500K Cermet potentiometer:
  • Step 1: Connect the CW Terminal (Pin 1)
  • + Connect Pin 1 to the positive voltage source (VCC) or the input signal.
  • + Ensure that the voltage source or input signal is within the recommended operating range of the potentiometer.
  • Step 2: Connect the CCW Terminal (Pin 2)
  • + Connect Pin 2 to the negative voltage source (GND) or the ground.
  • + Ensure that the ground connection is secure and reliable.
  • Step 3: Connect the Wiper Terminal (Pin 3)
  • + Connect Pin 3 to the output signal or the load.
  • + Ensure that the output signal or load is within the recommended operating range of the potentiometer.
  • Example Connection Diagram
  • Here is an example connection diagram for the 500K Cermet potentiometer:
  • ```
  • +---------------+
  • | VCC |
  • | (Positive |
  • | Voltage Source) |
  • +---------------+
  • |
  • |
  • v
  • +---------------+ +---------------+
  • | Pin 1 | | Pin 3 |
  • | (CW Terminal) | | (Wiper Terminal)|
  • +---------------+ +---------------+
  • |
  • |
  • v
  • +---------------+
  • | GND |
  • | (Negative |
  • | Voltage Source) |
  • +---------------+
  • |
  • |
  • v
  • +---------------+
  • | Pin 2 |
  • | (CCW Terminal) |
  • +---------------+
  • ```
  • Important Notes
  • Always handle the potentiometer with care to avoid damaging the internal mechanical components.
  • Ensure that the potentiometer is mounted securely to prevent mechanical stress and vibration.
  • The 500K Cermet potentiometer has a maximum operating voltage of 250V and a maximum power rating of 0.5W. Ensure that the operating conditions are within these limits.
  • By following this documentation, you should be able to correctly connect and use the 500K Cermet potentiometer in your IoT or electronic project.

Code Examples

Component Documentation: 500K Cermet (Pack of 5)
Overview
The 500K Cermet is a type of trimmer potentiometer that offers a high level of precision and reliability. This component is commonly used in various IoT applications, such as sensor circuits, audio equipment, and control systems. The 500K Cermet (Pack of 5) provides a convenient and cost-effective solution for prototyping and developing IoT projects.
Features
Resistance value: 500 k
 Tolerance: 20%
 Power rating: 0.5 W
 Operating temperature range: -55C to 150C
 Cermet element for high reliability and stability
 Compact package with 3-pin layout (CW, CCW, and Wiper)
Pinouts
| Pin | Function |
| --- | --- |
| 1 | CW (Clockwise) |
| 2 | Wiper |
| 3 | CCW (Counter-Clockwise) |
Example 1: Voltage Divider Circuit
In this example, we will use the 500K Cermet to create a voltage divider circuit that outputs a variable voltage signal.
Schematic:
```
 Vin ----+-----+
          |     |
          |  R1  |
          |  500K  |
          |     |
          +-----+
                |
                |
                v
         +-----+
          |     |
          |  R2  |
          |  1k   |
          |     |
          +-----+
                |
                |
                v
         +-----+
          |     |
          |  Vout  |
          |     |
          +-----+
```
Code Example (Arduino):
```c
const int vinPin = A0;  // Input voltage pin
const int voutPin = A1; // Output voltage pin
const int cermetPin = A2; // Cermet wiper pin
void setup() {
  pinMode(vinPin, INPUT);
  pinMode(voutPin, OUTPUT);
  pinMode(cermetPin, INPUT);
}
void loop() {
  int vinValue = analogRead(vinPin);
  int cermetValue = analogRead(cermetPin);
  int voutValue = map(cermetValue, 0, 1023, 0, vinValue);
  analogWrite(voutPin, voutValue);
  delay(10);
}
```
Example 2: Audio Volume Control
In this example, we will use the 500K Cermet to create a simple audio volume control circuit.
Schematic:
```
 Audio In ----+-----+
               |     |
               |  R1  |
               |  1k   |
               |     |
               +-----+
                     |
                     |
                     v
         +-----+
               |     |
               |  500K  |
               |  Cermet |
               |     |
               +-----+
                     |
                     |
                     v
         +-----+
               |     |
               |  R2  |
               |  1k   |
               |     |
               +-----+
                     |
                     |
                     v
         Audio Out ----+
```
Code Example (Python):
```python
import RPi.GPIO as GPIO
import time
# Set up GPIO pins
GPIO.setmode(GPIO.BCM)
GPIO.setup(18, GPIO.OUT) # Audio output pin
GPIO.setup(23, GPIO.IN)  # Cermet wiper pin
try:
    while True:
        cermet_value = GPIO.input(23)
        audio_volume = cermet_value  255 / 1023
        GPIO.output(18, audio_volume)
        time.sleep(0.01)
except KeyboardInterrupt:
    GPIO.cleanup()
```
These examples demonstrate how to use the 500K Cermet in different IoT applications. The cermet potentiometer can be used in a variety of other projects, such as sensor calibration, impedance matching, and signal attenuation.