BPW21R
Overview
The BPW21R is a high-precision silicon PIN photodiode housed in a hermetically sealed TO-5 metal can package. It is specifically designed for high linearity and high sensitivity in the visible light spectrum, with a spectral response adapted to the human eye. Its peak sensitivity occurs at 565nm, making it ideal for accurate light level measurements without complex infrared filtering.
Why Choose This Part
The hermetic TO-5 package ensures long-term stability and a wide operating temperature range from -40 to 125 degrees Celsius. Its 7.5mm2 active area provides a high sensitivity of 9 nA/lx with extremely low typical dark current of 2nA, enabling high-resolution measurements even at low light levels.
Applications
Key Specifications
Getting Started
To achieve maximum linearity, operate the photodiode in photovoltaic mode with a high-precision transimpedance amplifier (TIA). Ensure the metal can is grounded if electrical shielding is required in high-EMI environments. For high-speed applications, use a reverse bias up to the 10V maximum to reduce junction capacitance.
Also Consider
