Transistor Output Not Turning Off (Minute Current)

What does TRANSISTOR-NO-OFF-MINUTE-CURRENT mean?

A load connected to a transistor output module fails to turn off, or may even turn on unexpectedly, when it operates with a minute current (0.1mA or lower). This behavior is attributed to the inherent leakage current present in the transistor output, which is sufficient to activate such low-current loads.

• The connected load requires a very low operating current (0.1mA or lower).
• Leakage current from the transistor output itself is enough to energize or partially energize the minute current load.

Click steps to track your progress.

1. 1

   Connect a resistor (several tens or hundreds of kΩ) in parallel across the load terminals. This provides a path for the transistor's leakage current, ensuring the load deactivates completely.