📌 Product Overview
The XL-ITR20005 is a transmissive photoelectric switch 🏷️ integrating a 940nm infrared emitter and a high-sensitivity phototransistor detector into a single package. It is specifically engineered for applications requiring fast response times and reliable object detection. The component features a lead-free, RoHS-compliant construction with a Moisture Sensitivity Level (MSL) of 2, making it suitable for standard SMT assembly lines.
💡 Design Focus: This device targets non-contact sensing in compact spaces, such as paper feed mechanisms in fax machines or coin validation in slot machines. Its primary value lies in providing high radiant intensity with a low forward voltage drive, optimizing power efficiency in battery-operated or low-voltage consumer appliances.
🎯 Typical Applications
Based on its fast response time (15μs rise/fall) and compact form factor, the XL-ITR20005 is optimized for the following scenarios:
- Automated Transaction Systems: Coin detection and validation in slot machines and vending equipment.
- Office Automation: Paper presence detection in fax machines, scanners, and printers.
- Consumer Electronics: Position sensing and safety interlocks in small home appliances.
- Industrial Automation: Limit switching and automatic sensors in light-duty machinery.
⚙️ Key Technical Specifications
The table below outlines the electro-optical characteristics under standard test conditions (Ta=25°C).
| Parameter | Symbol | Test Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Forward Voltage | VF | IF=20mA | - | 1.2 | 1.6 | V |
| Peak Wavelength | λp | IF=20mA | - | 940 | - | nm |
| Collector Current | IC(on) | IF=20mA, VCE=5V | 0.5 | 0.9 | - | mA |
| Rise Time | tr | VCE=5V, IC=1mA | - | 15 | - | μs |
| Fall Time | tf | VCE=5V, IC=1mA | - | 15 | - | μs |
💡 Insight: With a typical forward voltage of 1.2V at 20mA, this sensor offers a low-voltage drive characteristic suitable for power-sensitive designs.
⚠️ Absolute Maximum Ratings & Process Limits
Exceeding these ratings may cause permanent damage. Adherence to these limits is critical for reliability and yield management.
| Parameter | Symbol | Ratings | Unit | Notes |
|---|---|---|---|---|
| Power Dissipation | PD | 75 | mW | Per channel (Emitter/Detector) |
| Forward Current | IF | 50 | mA | Continuous DC operation |
| Peak Forward Current | IFP | 1 | A | Pulse width ≤100μs, Duty Cycle 1% |
| Collector-Emitter Voltage | VCEO | 35 | V | Output detector rating |
| Operating Temp. | Topr | -20 ~ +85 | ℃ | Ambient range |
| Soldering Temp. | Tsol | 260 | ℃ | Max 5s at >2mm from body |
🔒 Risk Control: Derating the forward current is recommended for high-temperature environments to ensure long-term lifespan.
📦 Package, Dimensions & Assembly Notes
- Form Factor: Standard transmissive slot housing.
- Dimensions: Tolerances are set to ±0.3mm unless otherwise specified.
- Soldering: Lead soldering temperature must not exceed 260°C.
- MSL Level: 2 (Floor life > 1 year at ≤30°C / 85% RH).
- Handling: Ensure IR emitter alignment matches the detector slot for optimal optical coupling.
📈 Sourcing & Supply Considerations
- Supply Chain: Verify authenticity to avoid counterfeit photo-interrupters which often suffer from misaligned slots.
- Binning: Check specific CTR (Current Transfer Ratio) bin codes if application requires strict current gain matching.
- Production Samples: Request pre-production samples to validate the 15μs response time in your specific circuit load.
❓ FAQ
Q: What is the typical wavelength for the emitter?
A: The peak wavelength (λp) is 940nm, which is standard infrared and minimizes interference from visible ambient light.
Q: Can this sensor be used in high-speed applications?
A: Yes, it features rise and fall times of typically 15μs, making it suitable for detecting fast-moving objects like paper in printers or coins in machines.
Q: What are the storage requirements to prevent damage?
A: The storage temperature range is -40°C to +85°C. Given the MSL is 2, components can be handled in the factory environment (<30°C/85% RH) for up to one year before baking.
Q: What is the maximum surge current this device can handle?
A: The peak forward current (IFP) is rated for 1A, provided the pulse width is ≤100μs and the duty cycle does not exceed 1%.
Q: Is the XL-ITR20005 RoHS compliant?
A: Yes, the datasheet confirms it is Pb-Free (Lead-Free) and fully RoHS compliant.
Q: How close can the soldering iron get to the package body?
A: Soldering must be performed at least 2mm away from the resin body, and the duration should not exceed 5 seconds.
