Senba Sensing Technology Co., Ltd.

Overview D205B is widely used for ceiling lamps and has a large detection angle.The pyroelectric infrared sensor detects infrared radiation on the basis of the characteristics that the polarization of pyroelectric material changes with temperature. Senba  is the specialist PIR manufacturer for more than 15 years. We are the most advanced factory with complete categories. With strong R&D center, there are digital type and analog type, dual elements and four elements for you choose. The market cover domestic market, Korean, America, Turkey and Europe. Features Low power consumption Wide angle Slight movement can be detectable Recommended Model D205B Encapsulation Type TO-5 IR Receiving Electrode 0.7×2.4mm, 4 elements Window Size 4.9 × 4.9mm Spectral Response 5–14µm Transmittance ≥75% Output Signal[Vp-p] ≥5000mV Sensitivity ≥4300V / W Detectivity (D*) 1.6 × 108 cmHz 1/2 / W Noise[Vp-p] <70mV O...

Pyroelectric sensor is a kind of  human motion sensor module , also known as infrared pir motion sensor module , used for life burglar alarm, visitor notification, etc., the principle is to release the charge through the amplifier into a voltage output. The piezoelectric ceramic dielectric can maintain a polarization state after being polarized, which is called spontaneous polarization. Spontaneous polarization decreases with increasing temperature and the temperature drops to zero at the Curie point. Therefore, when the material is exposed to infrared radiation and the temperature rises, the surface charge will decrease, which is equivalent to releasing a part of the charge, so it is called pyroelectric. The discharged charge is converted to a voltage output by an amplifier. This is how the pyroelectric sensor works. When the radiation continues to act on the pyroelectric element and its surface charge is balanced, the charge is no longer released. Therefore, the ...

Overview P hototransistor optocoupler  devices use the current changes to control the resistance change. It is a Linear optocoupler which through the strictly selected, aging, testing. O ptocoupler isolation   made up of CDS and LED. Package tyoe for LCR-0202 is DIP-4(cuboid small package). It is widely used in audio power amplifier protection and control. It is recommend that the welding should be made at 4mm of lead wire far away from optoisolator’s seat, and the welding be completed in the shortest possible time. Feature Pure resistor and non-polarity output Wide range of analog liner resistance, "on" at the low resistance. "off" at high resistance Simple circuit configuration suitable for DC and AC use Input to output isolation, and low distortion coupling Datasheet Type LCR- 0202 Series Package DIP-4 Input current 0- 20mA Input Voltage 1.6- 2.5Vdc Output Light Resistance 50Ω - 1KΩ @ 20mA- 0.01mA O...

Overview Senba mini pir motion sensor     with high sensitivity, low noise and reliable performance. We have our own research and development department, with international technology and Hybrid IC technique expertise developed more than 15 years. The goods come standard with enhanced immunity to RFI (Radio Frequency Interference) and 2.4G high frequency interference. Senba PIR sensor suppport delay time, sensitivity adjustable, lighting adjustable. Features  of small pir motion sensor High sensitivity and excellent S/N ratio Enhanced immunity to RFI (Radio Frequency Interference) Slight movement can be detectable High immunity to external noise (vibration, etc.) Technical Data  of small movement sensor 1.Maximum Ratings Characteristics Symbol Min. Value Max. Value Unit Remarks Working Temperature TOT -30 70 ℃ Storage Temperature TST -40 80 ℃ Max.current for pin Into -100 100 mA ...