Hall Effect Sensor - US1881
489 units available with a short lead time.
The US1881 is a latching Hall effect sensor in a TO-92 package. When exposed to a magnetic field above the operating threshold, the open-collector output latches LOW and stays there until a reversed magnetic field pulls it back HIGH. This makes it ideal for detecting the presence or rotation of magnets — commonly used in RPM sensing, door/window detection, and position feedback.
The sensor includes an onboard bandgap regulator for temperature compensation and operates across a wide 3.5–24 V DC supply range with built-in reverse-polarity protection.
Key Features
- Latching Output – Toggles and holds state on magnetic field reversal
- Wide Supply Range – 3.5–24 V DC
- Open-Collector Output – 50 mA max sink current
- Temperature Compensated – Stable operation across temperature range
- Reverse-Polarity Protection – Built-in supply protection
- Schmitt Trigger – Hysteresis for clean, noise-free switching
- TO-92 Package – Compact, lead-free through-hole
Specifications
- Sensor: US1881 (latching Hall effect)
- Supply Voltage: 3.5–24 V DC
- Output: Open-collector (50 mA max sink)
- Package: TO-92
Ideal For
- Magnet presence and proximity detection
- RPM and rotation sensing
- Door and window open/close detection
- Position feedback in mechanical systems
Package Contents
- 1× US1881 Hall Effect Sensor (TO-92)
Resources
The Hall Effect Sensor - US1881 appears in the following collections:
