1. Title & Product Identification

️· Product: SFH 4240
️· Manufacturer: Osram Opto Semiconductors GmbH
️· Type: Power TOPLED®, clear resin
️· Date: 2010-01-12

2. Package Outlines/Measurements

️· Diagrams: Shows package dimensions (in mm/inch). The diagram indicates the location of the cathode (identified by a beveled edge).
️· Purpose: Provides the physical dimensions of the LED package for PCB layout and mechanical design.

3. Recommended Solder Pad Design

️· Reflow Soldering: Shows a recommended PCB layout for reflow soldering.
️· TTW Soldering: (Through-hole Wave Soldering) Shows a different PCB layout for wave soldering.
️· Purpose: Guides PCB designers to create a pad layout that facilitates proper soldering and electrical connections.

4. Soldering Conditions and Profiles

️· Preconditioning: References JEDEC Level 2 for pre-treatment.
️· Reflow Soldering Profile: Shows a detailed reflow soldering profile adhering to J-STD-020C. This profile specifies temperature versus time for the reflow process.
️· Wave Soldering Profile: (CECC 00802) Shows a wave soldering profile.
️· Purpose: Specifies the acceptable temperature ranges and durations for soldering, to ensure reliable connections and avoid damage to the LED.

5. Mouser Electronics Link

️· Link: http://www.mouser.com/access/?pn=720-SFH4240-Z
️· Purpose: Provides a direct link to purchase the LED from Mouser Electronics.

6. Legal/Safety Information

️· Copyright: © All Rights Reserved.
️· Disclaimer: States that the document describes the component type and isn’t a guarantee of characteristics. Reserves the right to change the design.
️· Dangerous Substances: Warns that the component may contain dangerous substances and directs customers to contact sales for information.
️· Life Support Devices: Includes critical safety warnings regarding the use of the LED in life-support devices, requiring express written approval. Defines what constitutes a critical component and a life-support device.
️· Recycling: Promotes recycling of packing material.

Overall Summary:

The SFH 4240 datasheet provides essential information for engineers and technicians working with this LED. It covers physical dimensions, recommended PCB layout for soldering, permissible soldering conditions, and important safety and legal disclaimers. The goal is to enable the correct handling and integration of the SFH 4240 into electronic devices.

Key Takeaways:

️· Soldering is critical: The datasheet places significant emphasis on proper soldering techniques and profiles.
️· Safety First: There are clear warnings regarding the use of this LED in life-critical applications.
️· Mouser Link: Easy access to purchase the LED.
️· Comprehensive Information: Provides a wealth of technical details.