Photodiodes Si PIN Photodiode

SFH 2401 – Blue-Enhanced Si PIN Photodiode, 950nm Wavelength – ams OSRAM

The SFH 2401 from ams OSRAM is a high-performance silicon PIN photodiode optimized for precise light detection across a broad spectral range. Ideal for industrial and consumer applications, this surface-mount component delivers fast response times and excellent sensitivity in compact packaging. PCX ensures genuine ams OSRAM components with same-day shipping and dedicated technical support.

Key Features

• Wavelength: 950nm peak sensitivity
• Enhanced Color Response: Blue spectrum optimization
• Spectral Range: 300nm – 1100nm detection
• Response Time: Ultra-fast 100ns switching
• Active Area: 8.12mm² for superior light capture
• Operating Voltage: Up to 16V reverse bias
• Low Dark Current: Typical 1nA for minimal noise

Technical Details

Part of the CEA series, this active-status photodiode features a PIN structure for linear output and wide viewing angles (120°). Its 2-SMD gull-wing package enables seamless surface mounting in automated production. Reliable operation is guaranteed across industrial temperature ranges (-40°C to +85°C), making it suitable for harsh environments. The broad spectral response covers UV to NIR wavelengths.

Typical Applications

• Industrial automation sensors and light barriers
• Medical pulse oximetry and diagnostic equipment
• Infrared remote control receivers
• Ambient light sensing in consumer electronics
• Optical encoders and position detection systems

About ams OSRAM

ams OSRAM is a global leader in optical solutions, combining decades of expertise in photonics and semiconductors. Their components set industry benchmarks for precision, energy efficiency, and signal integrity across automotive, healthcare, and industrial markets.

Renowned for rigorous quality control and innovation, ams OSRAM holds ISO-certified manufacturing facilities. Their photonic sensors undergo extensive reliability testing, ensuring consistent performance in mission-critical applications worldwide.

About PIN Photodiodes

PIN photodiodes convert light into electrical current using an intrinsic semiconductor layer between P and N regions. This design enables faster response speeds and broader spectral sensitivity compared to standard PN photodiodes, making them essential for high-speed optical communication and precision light measurement.

These components are fundamental in modern optoelectronics, providing critical functionality in safety systems, environmental monitoring, and wearable technology. Their linear output characteristics allow accurate light intensity quantification in scientific instruments and industrial controls.

Packaging Options

Available in Tape & Reel (TR), Cut Tape (CT), and Digi-Reel® formats for flexible prototyping and volume production. PCX provides full traceability documentation with every order.

FAQs

Q: What is the advantage of blue enhancement in this photodiode?
A: Blue enhancement increases sensitivity in the 300-500nm range, enabling better performance in UV/blue light detection for applications like fluorescence analysis.

Q: Can the SFH 2401 detect infrared light?
A: Yes, its spectral range extends to 1100nm, making it suitable for NIR applications including proximity sensing and IR remote controls.

Q: Is this photodiode sensitive to ambient light interference?
A: The 950nm peak sensitivity minimizes interference from visible light. For critical applications, optical filters can be paired with the device.

Q: What reverse voltage is recommended for optimal performance?
A: While it supports up to 16V, typical operation at 5-12V provides optimal signal-to-noise ratios. Refer to the datasheet for voltage-dependent responsivity curves.

Q: How does the viewing angle affect installation?
A: The 120° wide angle allows flexible positioning but requires proper housing design to prevent off-axis light interference in directional applications.

Q: Are evaluation boards available for this component?
A: PCX provides application notes and design resources. Contact our technical team for evaluation support.

Disclaimer: Product images are representational. Refer to datasheet for exact dimensions and specifications. Download full datasheet (hosted on PCXCo.com).

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