📌 Product Overview
The XL-PD70-01C-TR is a silicon photodiode optimized for 940nm infrared detection, featuring a reverse light current range of 17–25μA. 💡 This component is engineered for high-speed signal response in surface-mount technology (SMT) processes. With a compact 6.4x3.9x1.2mm outline, it targets designs requiring non-contact sensing and optical data transmission. The device utilizes a transparent colloid to maximize light sensitivity while maintaining EIA standard packaging compatibility for automated assembly.
🎯 Typical Applications
Based on the 940nm peak sensitivity and fast rise time (Tr ≤ 50μs), the XL-PD70-01C-TR is suitable for the following scenarios:
- Consumer IR Control: Standard remote control receivers for set-top boxes and HVAC systems.
- Industrial Automation: ⚙️ Photoelectric switches, counters, and safety light curtains in manufacturing lines.
- Smart Metering: Optical detection heads for utility reading and thermal imaging interfaces.
- Embedded Systems: 🤖 Intelligent sensors for robots and smart vehicles requiring obstacle avoidance.
- Medical Devices: Non-invasive diagnostic equipment utilizing pulse oximetry or fluid detection.
⚡ Key Technical Specifications
The XL-PD70-01C-TR operates with specific光电 parameters under standard test conditions (Ta=25°C). 👇 The table below summarizes the representative values required for circuit calculation and sensitivity gain adjustments.
| Parameter | Symbol | Min | Rep. | Max | Unit | Test Condition |
|---|---|---|---|---|---|---|
| Peak Wavelength | λp | - | 940 | - | nm | - |
| Reverse Light Current | IL | 17 | 25 | - | μA | VR=5V, Ee=1mW/cm² |
| Short-Circuit Current | Isc | - | 35 | - | μA | Ee=1mW/cm² |
| Dark Current | ID | - | 5 | 30 | nA | VR=10V |
| Reverse Breakdown Voltage | BVR | 32 | - | - | V | IR=100μA |
| Total Capacitance | Ct | - | 25 | - | pF | VR=5V, f=1MHz |
🔒 Absolute Maximum Ratings & Process Limits
Exceeding these ratings may cause permanent device failure or performance degradation. ⚠️ Designers must ensure the operational environment stays within these boundaries, particularly regarding power dissipation and soldering thermal shock.
| Parameter | Symbol | Maximum Rating | Unit | Notes |
|---|---|---|---|---|
| Power Consumption | Pd | 150 | mW | Derate above 25°C ambient |
| Reverse Voltage | VR | 32 | V | Continuous operation limit |
| Operating Temp. | Topr | -20 ~ +85 | °C | Ambient range |
| Storage Temp. | Tstg | -40 ~ +85 | °C | Non-operating environment |
| Soldering Condition | Tsol | 260 | °C | ≤ 6 Seconds (Manual/Hand) |
| Moisture Sensitivity | MSL | 3 | Level | Floor life: 168 hours |
📦 Package, Dimensions & Assembly Notes
- Package Type: EIA Standard SMD.
- Dimensions: 6.4 (L) x 3.9 (W) x 1.2 (H) mm with ±0.30mm general tolerance.
- Soldering Profile: 🌡️ Reflow soldering is recommended once. Peak temperature should not exceed 240°C for more than 10 seconds to prevent epoxy damage.
- Assembly Stress: Do not apply mechanical pressure to the LED body during heating or while the PCB is cooling to avoid cracking the die or wire bonds.
- Moisture Sensitivity: As an MSL 3 device, baking is required if the moisture barrier bag is exposed for more than 168 hours before reflow.
🚀 Sourcing & Supply Considerations
When integrating the XL-PD70-01C-TR into your BOM, verify the packaging format matches your placement equipment (Tape and Reel is standard). ✅ Check the manufacturing date code to manage MSL 3 exposure risks effectively. For cross-referencing or drop-in replacements, confirm that the spectral sensitivity (λp) and reverse light current (IL) bins match your specific gain requirements to avoid re-tuning the receiver circuit.
❓ FAQ
Q: What is the recommended peak wavelength for the emitter paired with this diode?
A: The XL-PD70-01C-TR has a peak sensitivity (λp) at 940nm. It should be paired with a 940nm IR emitter for optimal signal response and range.
Q: Can this component withstand lead-free soldering temperatures?
A: Yes, but with caution. While the max rating is 260°C, the datasheet recommends a peak of 240°C for ≤10 seconds. Ensure your reflow profile adheres to this to prevent thermal damage.
Q: What is the Moisture Sensitivity Level (MSL) and handling requirement?
A: This component is rated at MSL 3. It can be exposed to the factory floor for 168 hours after opening the vacuum-sealed bag before baking is required.
Q: How do I verify if this diode is a suitable replacement for a generic 3mm photodiode?
A: Compare the spectral range (400–1100nm) and the Reverse Light Current (IL: 17–25μA). If your circuit relies on a specific current output at 5V reverse bias, ensure this specification aligns with your existing design.
Q: What is the typical response time for this sensor?
A: The rise and fall times (Tr/Tf) are typically 50μs (RL=1kΩ), making it suitable for medium-speed data transmission and standard remote control frequencies.
