9V DC Signal Relay, SPDT, 3A

Low price 9V signal relay with full-turn and full-negative electromagnetic coil is more stable and precise.

Features

• 3A contact switching capability.
• Contact form: SPDT (1C).
• High sensitive type, coil power is 200mW/360mW/450mW.
• Standard DIP construction terminal.
• Ultra – small type, gold – plated contacts.
• Suit for complete machine wave soldering and integral cleaning process.
• Main applications: Electric power protection, automation, communication.

Specification

Note: In order to maintain the initial performance parameters of the signal relay, please be careful not to drop it.

Dimension

Units: mm

Performance curves

Tips: Signal relay troubleshooting

In the process of circuit application, improper operation or other interference factors will lead to signal relay faults. Common faults of signal relays include fuse fusing, wire breaking, sealing-off, screw loosening, coil burnout, bad contact of contacts, bad contact of connectors, bad insulation between lines and mixed power supply of lines. The solutions of the signal relay faults are as follows.

• Mixed line protection circuit
  Indoor and signal relay box environment is better, as long as strict construction technology is adopted, mixed line fault rarely occurs in the circuit, so it is no need to take mixed line protection measures. For the outdoor circuit, whether the cables or other wires are used as the connecting line, the possibility of mixed line failure is more likely to occur, and the mixed line protection circuit needs to be adopted.
• Disconnection protection circuit
  Disconnection fault is far more than mixed fault. The closed circuit method is used to design the signal relay circuit in order to drop the signal relay to protect the circuit in the event of a disconnection fault.