C4675 HAMAMATSU Element Photodiode Detector

Review HAMAMATSU Element Photodiode Array Detector

The Hamamatsu C4675 photodiode is a high-performance, ultra-sensitive detector designed for use in various applications, particularly in the fields of scientific research and industrial automation. This photodiode utilizes a silicon p-i-n structure, which allows it to efficiently convert photons into electrical current.

The Hamamatsu C4675 photodiode boasts a large active area of 8 mm in diameter, ensuring that it can detect a wide range of optical signals. Its low dark current, typically in the picoampere range, and high quantum efficiency, up to 92% in the visible region, make it ideal for use in low-light applications.

This photodiode features a built-in junction capacitance of approximately 150 pF, which is relatively large compared to other photodiodes, but is beneficial for applications that require high input impedance and low noise. Its reverse bias voltage can range from -10V to -20V, allowing it to be used with various types of voltage supplies.

The Hamamatsu C4675 photodiode is also known for its fast response time, with a rise time of approximately 20 nanoseconds and a fall time of approximately 100 nanoseconds, making it suitable for use in applications that require fast detection of optical signals. Its low noise figure, typically below 3.5 nV/ Hz, ensures high signal-to-noise ratios, which is crucial for accurate data acquisition.

In addition, the Hamamatsu C4675 photodiode comes with a protective quartz glass window, which shields the sensitive photodiode element from mechanical damage and contamination. The photodiode is available in various packages, including TO-46 and SMD packages, allowing it to be easily integrated into various circuits and systems.

Overall, the Hamamatsu C4675 photodiode is a versatile and reliable detector that offers high sensitivity, fast response time, and low noise, making it a popular choice for a wide range of applications, from scientific research to industrial automation.

The Hamamatsu C4675 photodiode is a popular choice for various applications, especially in the field of scientific research and industrial measurements. Here are some pros and cons of buying this photodiode detector:

1. High Sensitivity: The Hamamatsu C4675 photodiode has a high quantum efficiency, making it an excellent choice for detecting low-level light. Its sensitivity ranges from 20% to 80% depending on the wavelength, which is ideal for applications where detecting faint signals is crucial.

2. Wide Dynamic Range: This photodiode has a wide dynamic range, allowing it to detect both weak and strong signals without saturating. It can handle a large range of incident light levels, making it a versatile option for various applications.

3. Low Dark Current: The Hamamatsu C4675 photodiode has a low dark current, which is essential for applications where minimizing noise is a priority. Its low dark current ensures that the detected signals are accurate and free from unwanted noise.

4. Small Size: The C4675 photodiode is relatively small, making it easy to integrate into various systems and applications. Its compact size also makes it ideal for use in confined spaces and portable devices.

5. Good Linearity: This photodiode has good linearity, meaning that it responds consistently to different input signals. It ensures accurate and reliable measurements, making it an excellent choice for applications where precise measurements are required.

1. High Cost: The Hamamatsu C4675 photodiode is relatively expensive compared to other photodiodes in the market. Its high cost may be a limiting factor for some applications, especially those with tight budgets.

2. Requires External Circuitry: This photodiode requires external circuitry to function correctly. It may require additional components like amplifiers, voltage regulators, and protective diodes, which can add to the overall cost and complexity of the system.

3. Fragile: The Hamamatsu C4675 photodiode is delicate and can be easily damaged. It requires careful handling during installation and operation to ensure its longevity and optimal performance.

The Hamamatsu C4675 photodiode is an excellent choice for applications where high sensitivity, wide dynamic range, low dark current, good linearity, and small size are essential. Its high cost and fragility may be drawbacks for some users, but its superior performance makes it a worthwhile investment for those who require precise and reliable measurements.

If you are looking for a high-performance photodiode for scientific research or industrial measurements, the Hamamatsu C4675 is an excellent option. Its superior sensitivity, wide dynamic range, low dark current, good linearity, and small size make it an ideal choice for applications where precise and reliable measurements are crucial. However, its high cost and fragility may be limiting factors for some users. Consider your specific application requirements and budget before making a decision.

Details:

Comes as pictured. Used and working Hamamatsu C4675 element photodiode array detector.

specifications oscillovectscopes:

• brand: Hamamatsu
• mpn: C4675
• model: Hamamatsu C4675
• part type: Detector
• country of origin: United States

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• started: march 10, 2026
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