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XL-3216PDC SMD Phototransistor: 880nm Peak Wavelength for SMT Integration

The XINGLIGHT XL-3216PDC is a surface-mount phototransistor designed for compact infrared sensing applications. This article provides a detailed technical overview of its specifications, including its 880nm peak wavel...

XL-3216PDC SMD Phototransistor: 880nm Peak Wavelength for SMT Integration


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📌 Product Overview

The XINGLIGHT XL-3216PDC is a surface-mount phototransistor engineered for efficient infrared light detection. Its compact 3.2 x 1.6 x 0.8mm footprint and black epoxy colloid are optimized for high-density circuit assembly. Designed for SMT automation, it provides reliable optical-to-electrical signal conversion, making it a critical component for modern, space-constrained electronic designs requiring precise sensing capabilities.

🔍 Typical Applications

  • Smart home appliance iris recognition systems
  • Infrared luminescent micro light barriers
  • Photoelectric switches and induction switches
  • Smoke detectors
  • Infrared sensors
  • Floppy disk drivers

📊 Key Technical Specifications

ParameterSymbolMinTypMaxUnitTest Condition
Peak Wavelengthλp880nm
Collector Dark CurrentI_CEO30nAV_CE=20V, Ee=0
Current Gainh_FE2002300V_CE=5V, I_C=2mA
Photocurrent (850nm)I_PCE300400μAV_CE=5V, Ee=1mW/cm²
Photocurrent (940nm)I_PCE500600μAV_CE=5V, Ee=1mW/cm²
Rise TimeT_r15μsR_L=1kΩ

⚠️ Absolute Maximum Ratings & Process Limits

ParameterSymbolMax RatingUnitCondition
Collector-Emitter VoltageV_CEO30V
Emitter-Collector VoltageV_ECO5V
Operating Temp.T_opr-40 to +85°C
Reflow SolderT_sol260°C6s max

📦 Package, Dimensions & Assembly Notes

The XL-3216PDC is packaged in a compact SMD outline measuring 3.2 x 1.6 x 0.8mm. It is compliant with ROHS environmental standards and features a Moisture Sensitivity Level (MSL) of 3-4. It is suitable for infrared reflow soldering processes, ensuring compatibility with standard SMT manufacturing lines. EIA standard packaging is used for reliable handling and placement.

🚀 Sourcing & Supply Considerations

  • Sample Support: Contact XINGLIGHT for engineering samples to validate performance.
  • Mass Production: Lead times are subject to order volume and current market conditions.
  • Alternative Evaluation: Direct cross-referencing is recommended due to binning variations.
  • Channel Verification: Ensure procurement from authorized distributors to guarantee authenticity.

❓ FAQ

Q: What is the peak sensitivity wavelength of the XL-3216PDC?
A: The typical peak sensitivity wavelength (λp) is 880nm.

Q: What is the Moisture Sensitivity Level (MSL) for this component?
A: The MSL is 3-4, indicating it requires specific handling and baking before SMT assembly to prevent damage.

Q: What are the recommended soldering conditions?
A: For reflow soldering, the peak temperature should not exceed 260°C for a maximum of 6 seconds. Manual soldering should be done at 300°C for a maximum of 3 seconds.

Q: Is the XL-3216PDC suitable for lead-free soldering processes?
A: Yes, it is suitable for both standard and lead-free (Pb-free) infrared reflow soldering processes, adhering to industry standards like J-STD-020C.

Q: What are the typical applications for this phototransistor?
A: It is commonly used in applications like iris recognition, photoelectric switches, smoke detectors, and infrared sensors where compact, reliable light detection is required.

About Leon Zhang

Leon Zhang is the founder of LDeepAI, focusing on AI-assisted electronic component sourcing and verified China supply-chain support for overseas buyers. He previously worked within the Huaqiang Group ecosystem, including experience related to HQEW, one of China's well-known electronic component trading platforms. This background gives him practical insight into China's electronic component supply-chain structure, supplier screening, channel verification and cross-border sourcing workflows.

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