The MS8551S is a superior precision OPAMP (Operational Amplifier) with SOT-23-5 packaging. It is a RoHS compliant device manufactured by Ruimeng. This OPAMP is low power, low offset, and high accuracy, making it ideally suited for use in analog control systems or high-precision signal processing applications. Its high PSRR (Power Supply Rejection Ratio) of 85 dB at 10 kHz helps to reduce power supply noise, making it an ideal choice for consumer electronic devices. The MS8551S has a wide temperature range of -40°C ~ 125°C and is available with 8-pin DIP and 14-pin SOIC package.