📌 Product Overview
The XINGLIGHT XL-PT968-8C is a high-sensitivity NPN silicon phototransistor tailored for infrared signal reception. 💡 Encapsulated in a transparent epoxy package with standard 4.0 x 2.9 x 2.9 mm dimensions, this component is engineered for fast response times and robust signal switching. It is particularly suitable for applications requiring precise optical control and signal transmission, such as non-contact switching and pulse detection in compact electronic assemblies.
🔎 Typical Applications
Based on its spectral sensitivity and fast switching characteristics, the XL-PT968-8C is deployed across various technical scenarios:
- Industrial Automation: Counters, thermal imaging systems, and smart metering sensors.
- Consumer Electronics: Infrared remote controllers and camera monitoring heads.
- Medical Devices: Integration into endoscopes and oximeters for pulse detection.
- Robotics: Intelligent cars and embedded systems for obstacle avoidance and data transmission.
📊 Key Technical Specifications
The device is characterized by high energy efficiency and stable performance under standard operating conditions (Ta=25°C). 👇 Key optical and electrical parameters are outlined below:
| Parameter | Symbol | Test Condition | Min / Typ / Max | Unit |
|---|---|---|---|---|
| Spectral Range | λ0.5 | / | 400 ~ 1000 | nm |
| Peak Sensitivity | λP | / | 940 | nm |
| Collector Current | Ic(ON) | Ee=0.55mW/cm², Vce=5V | 0.513 ~ 3.433 | mA |
| Rise Time | Tr | Vce=5V, Ic=1mA | / 15 / | μs |
| Fall Time | Tf | RL=1kΩ | / 15 / | μs |
⚠️ Design Note: The device is available in rank bins (e.g., 6-1 to 7-3) to allow engineers to select specific current gain sensitivities (Ic(ON)) for circuit calibration.
🚨 Absolute Maximum Ratings & Process Limits
Exceeding these ratings may cause permanent device failure. 🔒 Designers must ensure operational boundaries remain within the limits specified below:
| Parameter | Symbol | Maximum Rating | Unit |
|---|---|---|---|
| Collector-Emitter Voltage | VCEO | 30 | V |
| Emitter-Collector Voltage | VECO | 5 | V |
| Collector Current | IC(ON) | 20 | mA |
| Power Dissipation | Pd | 75 | mW |
| Operating Temperature | Topr | -20 to +85 | °C |
| Storage Temperature | Tstg | -40 to +85 | °C |
Welding Conditions:
- Wave Soldering: 260°C, ≤ 6s
- Manual Welding: 300°C, 3s
- Note: Soldering points must be ≥ 2.0mm from the colloid bottom.
📦 Package, Dimensions & Assembly Notes
- Package Type: EIA Standard Compliance.
- Dimensions: 4.0 (L) x 2.9 (W) x 2.9 (H) mm.
- Tolerance: ±0.30mm (unless specified).
- Colloid: Transparent epoxy, moisture sensitivity level (MSL) 3.
- Assembly: 📈 The component supports standard reflow and wave soldering processes. Ensure no mechanical stress is applied to the leads during heating to prevent internal damage. It is recommended to control max welding temperature at 240°C/6s for optimal yield.
🤝 Sourcing & Supply Considerations
- Authenticity Verification: Supply channels should be audited to ensure compliance with ROHS and XINGLIGHT factory specifications.
- Binning Consistency: When scaling from prototype to mass production, verify that the supplied bin rank (e.g., 6-1) matches the design requirements to avoid gain variations.
- Packaging: Supplied in moisture-proof and anti-static foil bags to maintain MSL 3 integrity.
❓ FAQ
Q: What is the peak sensitivity wavelength for the XL-PT968-8C?A: The device is optimized for 940 nm, which is the standard wavelength for infrared remote controls and optical data transmission.
Q: Can this component be used for medical equipment like oximeters?A: Yes, the datasheet explicitly lists medical applications such as endoscopes and oximeters. However, if used in high-reliability life-support systems, consultation with sales regarding specific validation data is required.
Q: What is the humidity sensitivity level (MSL) for floor life?A: The XL-PT968-8C is classified as MSL 3. It can be exposed to ambient moisture for up to 168 hours before baking is required, provided it is stored in the original anti-static moisture-proof bag.
Q: How close can the solder joint be to the epoxy body?A: The datasheet mandates that welding points must be at least 2.0mm away from the bottom of the colloid to prevent thermal damage during soldering operations.
Q: Are there different sensitivity grades available?A: Yes, the component is binned into grades (e.g., 6-1, 7-1, 7-3) based on On-State Collector Current (Ic(ON)) measured at specific irradiance levels. This allows for tighter circuit tuning.
