SS441R Unipolar Hall-Effect Sensor for Door/lid/cover Closure Detection Flow Rate Sensing Medical Equipment
SS441R Unipolar Hall-Effect Sensor for Door/lid/cover Closure Detection Flow Rate Sensing Medical Equipment
Features :
High sensitivity: Typical operate point 75 G (25°C)
Wide voltage range: 3.0 to 24 VDC
Fast response: 1.5 μs switching speed
Low power: Nominal supply current 3.5 mA
Temperature range: -40°C to +150°C
Built-in reverse polarity protection
Thermally balanced IC for stable performance
RoHS compliant
Package: Flat TO-92 (3-pin through-hole)
Output: Current sinking (20 mA max)
Applications :
Position & proximity sensing
Door/lid closure detection
Speed/RPM sensing (fans, motors)
Flow rate monitoring
Valve/damper position control
Robotics & industrial automation
Medical equipment (hospital beds, diagnostics)
Consumer electronics & HVAC systems
|
Parameter |
Min |
Typ |
Max |
Unit |
Test Condition |
|---|---|---|---|---|---|
| Operating Supply Voltage | 3 | - | 24 | V DC | - |
| Supply Current | - | 3.5 | 8 | mA | Vcc=24V, no load |
| Maximum Output Current | - | - | 20 | mA | Open-collector output |
| Magnetic Operating Point (Bop) | 35 | 75 | 135 | G | 25°C, south pole |
| Magnetic Release Point (Brp) | 10 | - | 120 | G | 25°C |
| Magnetic Hysteresis (Bh) | - | 40 | - | G | Bop - Brp |
| Output Fall Time | - | - | 1.5 | μs | - |
| Operating Temperature Range | -40 | - | +150 | °C | Full voltage range |
| Storage Temperature Range | -40 | - | +150 | °C | - |
| Output Logic Level (Low) | - | 0.4 | - | V DC | Iout=20mA |
| Pin Spacing | - | 2.54 | - | mm | TO-92-3 package |
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.