How to Use JST SH1 x3 Male: Examples, Pinouts, and Specs

The JST SH1 x3 Male is a compact, 1.0mm pitch connector designed for secure and reliable wire-to-board or wire-to-wire connections in electronic circuits. It features three male pins, making it ideal for applications requiring a small form factor and robust connectivity. This connector is widely used in consumer electronics, robotics, drones, and other compact devices where space-saving and dependable connections are critical.

• Connecting sensors, actuators, or modules in compact devices
• Power and signal transmission in drones and robotics
• Wearable electronics and IoT devices
• PCB-to-wire connections in small electronic projects

The following table outlines the key technical details of the JST SH1 x3 Male connector:

The JST SH1 x3 Male connector has three pins, typically used for power, ground, and signal connections. The pinout is as follows:

1. Connector Mating: Pair the JST SH1 x3 Male connector with a compatible JST SH1 x3 Female connector. Ensure proper alignment to avoid damaging the pins.
2. Soldering: If soldering the connector to a PCB, use a fine-tipped soldering iron and ensure the solder joints are clean and secure.
3. Wire Crimping: For wire-to-wire connections, use a crimping tool to attach wires to the female counterpart before mating with the male connector.
4. Pin Assignment: Verify the pinout (VCC, GND, Signal) to ensure proper connections in your circuit.

• Avoid Overcurrent: Do not exceed the 1A current rating to prevent overheating or damage.
• Secure Connections: Ensure the connector is fully mated with its counterpart to avoid intermittent connections.
• Cable Strain Relief: Use strain relief mechanisms to prevent stress on the wires and connector.
• Polarity Check: Double-check the polarity of the VCC and GND pins before powering the circuit.

The JST SH1 x3 Male connector can be used to connect a sensor or module to an Arduino UNO. Below is an example of wiring and code for reading data from a sensor:

• Pin 1 (VCC) → Arduino 5V
• Pin 2 (GND) → Arduino GND
• Pin 3 (Signal) → Arduino Digital Pin 2

// Example code for reading a digital signal from a sensor connected via JST SH1 x3

const int signalPin = 2; // Pin connected to the Signal pin of the JST SH1 x3

void setup() {
  pinMode(signalPin, INPUT); // Set the signal pin as input
  Serial.begin(9600);       // Initialize serial communication at 9600 baud
}

void loop() {
  int sensorValue = digitalRead(signalPin); // Read the digital signal
  Serial.print("Sensor Value: ");
  Serial.println(sensorValue); // Print the sensor value to the Serial Monitor
  delay(500);                  // Wait for 500ms before the next reading
}

1. Loose Connections

   • Issue: The connector is not securely mated, causing intermittent signals.
   • Solution: Ensure the male and female connectors are fully inserted and aligned.

2. Incorrect Pinout

   • Issue: The circuit does not work due to incorrect wiring of VCC, GND, or Signal.
   • Solution: Double-check the pinout and wiring before powering the circuit.

3. Overheating

   • Issue: The connector or wires become hot during operation.
   • Solution: Verify that the current does not exceed the 1A rating. Use thicker wires if necessary.

4. Signal Noise

   • Issue: The signal pin picks up noise or interference.
   • Solution: Use shielded cables or add a pull-up/pull-down resistor to stabilize the signal.

Q: Can the JST SH1 x3 Male connector handle analog signals?
A: Yes, it can handle both analog and digital signals, provided the voltage and current ratings are not exceeded.

Q: Is the JST SH1 x3 Male connector suitable for high-vibration environments?
A: Yes, its secure mating design makes it suitable for environments with moderate vibration, such as drones or robotics.

Q: What tools are recommended for crimping wires for this connector?
A: Use a precision crimping tool designed for 1.0mm pitch connectors to ensure reliable wire connections.

Q: Can I use this connector for high-power applications?
A: No, the connector is rated for a maximum current of 1A and voltage of 50V. For high-power applications, consider using connectors with higher ratings.