The new Series 4 silicon photodiodes have triple the response speed (25ns vs. 80ns) compared to our current Series 4 PDs with the same active area.

New Low Capacitance High-Speed Series 4 Silicon Photodiodes - MT03-083 (left) and MT03-084 (right) Image Credit: Marktech
The new silicon photodiodes feature a significantly reduced junction capacitance (Cj), crucial for improving key performance metrics such as response time, frequency response, and bandwidth. The low capacitance allows for faster response times by minimizing the time needed for charge carriers to traverse the P-N junction. The advanced Si PDs are achieved through improved photodiode design configurations and our Series 4 silicon process technology enhancements.
In addition to the standard version, Marktech offers an isolated version of these photodiodes. The isolated version utilizes a ceramic submount to insulate the detector chip from the metallic TO metal package, effectively reducing noise during detection. This makes the photodiodes particularly well-suited for environments where signal integrity is paramount.
The new high-speed photodiodes are indispensable in various cutting-edge applications, including cameras, video imaging systems, optical communication, biomedical imaging, security systems, night vision devices, gas sensing, and motion detection.
Their ability to accurately convert light into electrical signals with minimal delay ensures superior performance in monitoring rapidly pulsed LED and laser light sources, spectroscopy, flame and gas monitors, motion and presence sensors, medical diagnostic devices, fluorometers, currency validators, automotive ADAS sensors, and more.
Key Features and Applications:
- Low Junction Capacitance (Cj): Enhances response time and bandwidth, enabling superior high-frequency operation.
- High-Speed Response: Ideal for applications requiring rapid detection and signal processing.
- Isolated Version: Features a ceramic submount for reduced noise, ensuring high signal integrity.
- Versatile Applications: Suitable for optical communication, biomedical imaging, motion detection, and more.
Marktech’s new low-capacitance, high-speed silicon photodiodes are now available and can be tailored to meet specific application needs. For more information, please visit www.marktechopto.com or contact our media relations department.
The MT03-084 is a square (3.87mm x 3.87mm) 15mm² active area Silicon Photodiode in an isolated, hermetic TO-5 package with a UV transmitting glass window, optimized for applications requiring high sensitivity in the 300 to 560nm region (UVA, Blue & Green). MT03-084 Datasheet PDF
The MT03-083 is a square (3.87mm x 3.87mm) 15mm² active area Silicon Photodiode in a hermetic TO-5 metal can package with a UV transmitting glass window (no isolating ceramic submount). It is optimized for applications requiring high sensitivity in the 300 to 560nm region (UVA, Blue & Green). MT03-083 Datasheet PDF
For more information, view the full article on Marktechopto.com.