This part is a kind of semiconductor called KP500B-P.

Function of this product has Pyroelectric infraed sensor.

Manufacturers : TZO

Image and pinout :

Some of the text within the PDF file :

深圳唐正电子有限公司 http://www.tzoic.cn E-mail:tzo_ic@163.com KP500B-P KP500B 特性 Pyroelectric infrared sensor 型号 Type 封装 Encapsulation 灵敏元面积 Element Size/Type 基片材料 Window Material 基片厚度 Window Thickness 窗口尺寸 Window Size 工作波长 Pass Band 平均透过率 Transmittance 输出信号 Signal [Vp-p] 灵敏度 Sensitivity 探测率(D*)Detectivity 噪声 Noise(Vp-p) 平衡度 Balance 工作电压 Operating Voltage 工作电流 Operating Current 源极电压 Source Voltage 工作温度 Operating Temperature 保存温度 Storage Temperature 视场 Field of View KP500B-P TO-5 2.0mm ×1.1mm ×Gap 硅 Si 0.5mm 4×3mm 5-14μm ＞75% >2.2V (420°k 黑体 1Hz 调制频率 0.3-3.0Hz 带宽 72.5db 增益) 3300V/W 1.5×10 cmHz /W ＜200mV (mVp-p) [ ... ]

KP500B-P PDF Datasheet Download