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Hw-416-b Pir Sensor Datasheet

Many buyers confuse the HW-416-B with the HC-SR501. Here is a side-by-side comparison based on typical datasheet values:

| Feature | HW-416-B | HC-SR501 | | :--- | :--- | :--- | | Size | Smaller (32x24mm) | Larger (32x24mm approx, thicker) | | Quiescent Current | < 50 µA | < 65 µA | | Adjustable Time Delay | Usually fixed or very short (2.5s) | Yes (0.3s – 600s) | | Retriggering Mode | Internal (automatic) | Jumper-selectable (single/retrigger) | | Best for | Battery-powered, short-lived triggers | Security lights, long delays | hw-416-b pir sensor datasheet

Verdict: Choose the HW-416-B for low-power IoT sensors or motion-activated sound effects. Choose the HC-SR501 for hallway lights or alarm systems requiring a long output pulse. Many buyers confuse the HW-416-B with the HC-SR501

  • Output: Digital (active HIGH) open-collector / push-pull optional
  • Output signal level: TTL/CMOS compatible (0 V LOW, VCC HIGH)
  • Response time: <1 s (typical response to moving target)
  • Warm-up time: 30–60 seconds for stable operation after power-up
  • Operating temperature: -20 °C to +60 °C
  • Humidity: 0%–95% RH non-condensing
  • Dimensions: PCB module approx. 32 × 24 × 18 mm (with lens); lens diameter/shape varies
  • Weight: ~6–12 g (module with lens)
  • Lens: Plastic Fresnel lens (interchangeable variants may be available)
  • Sensitivity adjustment: On-board potentiometer (where included) for sensitivity/threshold tuning
  • Time delay adjustment: On-board potentiometer or fixed timing (module variants exist)
  • Trigger mode: Single/digital pulse per detection; some modules support retrigger/hold options
  • Mounting: PCB holes for screws; suitable for enclosure mounting behind lens opening
  • Typical applications: Intrusion alarms, automatic lighting, energy-saving HVAC triggers, occupancy sensing, DIY electronics and microcontroller projects

    • Product: HW-416-B Passive Infrared (PIR) Motion Sensor
    Purpose: Human/animal motion detection for low-power security, automation, and IoT applications VCC HIGH) Response time: &lt

    A critical warning often found in technical reports regarding this module involves the voltage regulator.

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