RE200B Human Pyroelectric Infrared Sensor

RE200B Human Pyroelectric Infrared Sensor is an essential passive sensing component. It strictly detects the thermal radiation from human bodies. Consequently, manufacturers exclusively use this discrete sensor for custom motion circuits. It utilizes an advanced dual-element silicon architecture. Therefore, it actively cancels out ambient temperature changes. This prevents false triggers effectively. Furthermore, its classic metal TO-5 can provides excellent shielding. Indeed, it blocks external radio frequencies reliably. It consumes mere microamps of current during operation. Thus, it is incredibly ideal for battery-driven security alarms. You can engineer proprietary smart lighting modules easily using it. Briefly, the RE200B serves as the raw optical heartbeat of your detection system.

Key Features:

• Dual-Element Architecture: Features two complementary sensing areas. Therefore, it effectively cancels out background temperature fluctuations.
• Human Body Optimized: The window filter specifically passes 7μm to 14μm wavelengths. Consequently, it perfectly matches human thermal emissions.
• High EMI Immunity: Encased in a hermetically sealed metal TO-5 can. Thus, it reliably blocks external radio frequency interference.
• Low Power Consumption: Consumes minimal current during continuous duty. Furthermore, it excels in battery-driven security nodes.
• Wide Field of View: Boasts an expansive 139° by 126° native view. Indeed, it is ready for focusing by external Fresnel domes.

Technical Specifications:

• Operating Voltage (V_D): 2.2 V to 15.0 V DC
• Working Wavelength: 7 μm to 14 μm
• Field of View: 139° x 126° (Without external lens)
• Signal Output: Analog voltage (Requires external amplification)
• Quiescent Current: < 50 μA
• Sensitive Element Area: 2.0 mm x 1.0 mm (Dual element)
• Operating Temperature: −20°C to +70°C

Mechanical Specifications:

• Package Style: TO-5 Metal Can (3-Pin format)
• Housing Material: Tin-plated steel can with optical filter window
• Mounting Support: Soldered directly into custom through-hole PCB layouts.
• Sensor Element: Dual-element pyroelectric material on silicon substrate
• Weight: ≈ 2.0 grams

Dimensions:

• Can Diameter: ≈ 8.2 mm
• Can Height: ≈ 4.2 mm (Excluding pins)
• Optical Window: ≈ 5.2 mm x 4.2 mm
• Pin Length: ≥ 13.5 mm

Pinout and Wiring:

• Pin D (Drain): Connect to your positive DC power supply rail (2.2V to 15V).
• Pin S (Source): Connect this analog output to ground via a 47kΩ pull-down resistor.
• Pin G (Ground): Connect firmly to the common circuit ground.
• Wiring Note: This is a raw analog component without logic. Therefore, it absolutely requires a dedicated amplification IC (like the BISS0001) to function.

Datasheet Reference:

• Download RE200B Pyroelectric Infrared Sensor Datasheet

Commonly Used in:

• Commercial PIR Modules: Acting as the absolute core thermal element soldered into standard HC-SR501 boards.
• Home Security Alarms: Serving as the hidden detector behind professional wall-mounted burglar alarm domes.
• Automated Floodlights: Integrated directly onto the custom PCBs of motion-activated outdoor safety lighting.

Applications:

• Smart Thermostats: Detecting resident presence to adjust HVAC heating schedules specifically.
• Automatic Soap Dispensers: Sensing user hands without completely relying on easily foiled active IR bounce technology.
• Energy Management: Powering down dormant digital kiosks when no humans are present consequently.

Equivalent Models:

• D203S: A highly similar dual-element sensor. Furthermore, it offers nearly identical TO-5 electrical characteristics.
• LHI778: A premium PIR sensor commonly found in expensive commercial alarms, however possessing a higher unit cost.
• PIR325: A classic bare-component IR sensor that is additionally matched perfectly for human body detection.

Package Includes:

• 1 x RE200B Human Pyroelectric Infrared Sensor (Bare Component)