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XL-TD3216PDC Phototransistor: 880nm Peak Sensitivity for SMT Integration

The XL-TD3216PDC is a surface-mount phototransistor with a peak sensitivity of 880nm, designed for high-volume SMT production. This article provides critical specifications for engineers evaluating its use in infrared...

XL-TD3216PDC Phototransistor: 880nm Peak Sensitivity for SMT Integration

📌 Product Overview

The XL-TD3216PDC is a compact, surface-mount phototransistor manufactured by XINGLIGHT. Housed in a 3.2x1.6mm black epoxy package, this component is engineered for seamless integration into automated SMT assembly lines. Its design prioritizes reliability in demanding environments, making it suitable for applications requiring precise infrared detection. The device is compliant with ROHS standards and features a moisture sensitivity level (MSL) of 3, ensuring compatibility with standard manufacturing processes.

💡 Typical Applications

  • Smart Home & Security: Iris recognition systems, induction switches.
  • Industrial Automation: Photoelectric switches, infrared sensors, micro light barriers.
  • Consumer Electronics: Smoke detectors, floppy disk drives.
  • General Sensing: Any application requiring reliable infrared light-to-current conversion.

🔑 Key Technical Specifications

ParameterSymbolMinTypMaxUnitTest Condition
Peak Wavelengthλp-880-nm-
Collector Dark CurrentICEO--30nAVCE=20V
Current Transfer RatiohFE200-2300-VCE=5V, IC=2mA
Rise/Fall Timetr/tf-15-µsRL=1kΩ

⚡ Absolute Maximum Ratings & Process Limits

Electrical and thermal parameters that must not be exceeded under any operating conditions. Adherence to these limits is critical for device longevity and preventing permanent damage. The wide operating temperature range of -40°C to +85°C ensures suitability for diverse environments.

ParameterSymbolMax RatingUnit
Collector-Emitter VoltageVCEO30V
Emitter-Collector VoltageVECO5V
Operating TemperatureTopr-40 to +85°C
IR Reflow SolderingTsol260°C for 6s-

📏 Package, Dimensions & Assembly Notes

The XL-TD3216PDC is packaged in a standard 1206 (3.2x1.6mm) SMD format with a black epoxy colloid. It is specifically designed for automated SMT placement and is compatible with both leaded and lead-free infrared reflow soldering processes. The recommended solder profile includes a peak temperature of 235°C (leaded) or 255°C (lead-free) with a dwell time of 10-15 seconds or 5-10 seconds, respectively.

🚀 Sourcing & Supply Considerations

  • Supply Chain: This component is available in standard EIA-compliant tape and reel packaging for automated assembly.
  • Consistency: The device is graded for photo current (IC23-25: 4-6mA) to ensure performance consistency in volume production.
  • Verification: For authentic components, please verify through official XINGLIGHT distributors or directly with the manufacturer to avoid counterfeit risks.

❓ FAQ

Q: What is the moisture sensitivity level (MSL) for the XL-TD3216PDC?
A: The MSL is 3, requiring standard baking and handling procedures before SMT assembly to prevent moisture-induced damage.

Q: What is the peak sensitivity wavelength of this phototransistor?
A: The peak sensitivity wavelength (λp) is 880nm, with a spectral bandwidth ranging from 700nm to 1100nm.

Q: Is the XL-TD3216PDC suitable for lead-free soldering processes?
A: Yes, it is compatible with both leaded and lead-free infrared reflow soldering processes, with peak temperatures up to 255°C.

Q: How does the photo current grading work for this part?
A: The phototransistor is graded into codes (e.g., IC23-25), ensuring the photo current (IPCE) falls within a specified range (4-6mA @ Ee=1mW/cm², λp=940nm, VCE=5V) for predictable performance.

Q: What is the maximum collector-emitter voltage rating?
A: The absolute maximum rating for the collector-emitter voltage (VCEO) is 30V. Exceeding this value will result in device failure.

About Leon Zhang

Founder and Strategic Sourcing Lead, LDeepAI

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.

Expertise: electronic component sourcing, China supply-chain verification, LED components, memory and storage sourcing, RFQ risk screening.

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