会社のニュース Technical Characteristics of the S5971 Si PIN Photodiode

Manufacturers of Industrial Sensing and Laser Ranging Equipment (Industrial Automation & LiDAR)
The S5971 features a high bandwidth of 100 MHz and an exceptionally low dark current (1000 pA), enabling it to deliver outstanding performance in industrial environments that demand extremely high temporal resolution and signal-to-noise ratios.
1. Typical Enterprises: LiDAR module manufacturers, industrial automation equipment integrators, and manufacturers of precision measurement instruments.
2. Application Scenarios: Time-of-Flight (ToF) laser ranging, high-speed defect detection on industrial assembly lines, high-speed photoelectric switches for machine vision systems, and security surveillance systems.
3. Core Requirements: Extremely high product reliability, long-term supply stability, and the superior electromagnetic shielding and interference immunity provided by the TO-18 metal package. These customers typically exhibit lower price sensitivity, placing greater value on the endorsement of the "Hamamatsu" brand and a zero-defect rate.

Automotive Electronics and Medical Instrument Manufacturers
Representative Companies: Suppliers of Advanced Driver-Assistance Systems (ADAS), manufacturers of automotive LiDAR, and manufacturers of high-end medical imaging and pulse oximetry equipment.
Application Scenarios: Pulse reception in automotive LiDAR systems; in-cabin gesture recognition systems; and optical signal detection in medical pulse oximeters and high-precision blood analyzers.

Why Choose the Hamamatsu S5971? An Analysis of Its Core Technical Advantages
1. **100 MHz Cutoff Frequency and Low 3 pF Junction Capacitance:** Explains the decisive role that low junction capacitance plays in maintaining high-frequency bandwidth, and highlights its advantages in high-speed data links.
2. **Wide Spectral Response with a 920 nm Peak:** Outlines the response range of 320–1060 nm, demonstrating its exceptional performance across the visible to near-infrared (NIR) spectrum.
3. **TO-18 Metal Package and Ultra-Low 1 nA Dark Current:** Emphasizes the superior electromagnetic shielding (EMI) capabilities provided by the metal package, as well as the significance of low dark current in enhancing the signal-to-noise ratio (SNR).