1. LED Series and Key Specifications:

The document describes several LED series from Yellow Stone Corp. Here's a breakdown:

️· BL-Rxx41H Series:
- Cathode: Min. 0.5 sq. typ., Nom. 4.1 (0.161), 2.54 (0.100), 1.0 (0.039), 6.9 (0.272), 25.4 (1.00) Min., 1.5 (0.059) Max., 4.0 (0.157), 1.7 (0.067), 1.8 (0.071), 1.5 (0.059) Max.
️· BL-Rxx31K Series:
- Cathode: Min. 5.1 (0.201), Nom. 25.4 (1.00), Min. 1.0 (0.039), 2.54 (0.100), 0.5 (0.020) sq. typ., 4.8 (0.189), 1.5 (0.059), 4.7 (0.185), 1.4 (0.055).
️· BL-Rxx31T Series:
- Cathode: Min. 5.0 (0.197), 2.54 (0.100), 1.5 (0.059) Max., 2.8 (0.110), 5.1 (0.201), 25.4 (1.00) Min., 1.0 (0.039), 2.0 (0.079), 6.0 (0.236), 1.8 (0.071), 0.5 (0.02) sq. typ., 1.5 (0.059) Max.
️· BL-Rxx22 Series:
- Cathode: Min. 1.8 (0.071), 12.7 (0.500) Min., 0.5 (0.020) sq. typ., 1.0 (0.039), 2.29 (0.090), 2.8 (0.110), 5.1 (0.201), 2.0 (0.079), 5.0 (0.197), 6.0 (0.236).
️· BL-Rxx32 Series:
- Cathode: Min. 5.0 (0.197), 2.54 (0.100), 1.5 (0.059) Max., 2.8 (0.110), 5.1 (0.201), 25.4 (1.00) Min., 1.0 (0.039), 2.0 (0.079), 6.0 (0.236), 1.8 (0.071), 0.5 (0.02) sq. typ., 1.5 (0.059) Max.
️· BL-Rxx32A-T Series:
- Cathode: Min. 1.0 (0.039), 6.4 (0.252), 0.5 (0.020) sq. typ., 25.4 (1.00) Min., 2.54 (0.100), 1.0 (0.039), 6.5 (0.256), 5.0 (0.197), 2.0 (0.079), 2.0 (0.079).
️· BL-Rxx32B Series:
- Cathode: Min. 5.0 (0.197), 1.0 (0.039), 2.54 (0.100), 2.3 (0.091), 2.2 (0.087), 0.5 (0.020) sq. typ., 25.4 (1.00) Min., 5.4 (0.213), 5.2 (0.205).
️· BL-Bxx32C Series:
- Cathode: Min. 5.0 (0.197), 1.0 (0.039), 2.54 (0.100), 2.3 (0.091), 2.2 (0.087), 0.5 (0.020) sq. typ., 25.4 (1.00) Min., 5.4 (0.213), 5.2 (0.205).

2. Dimensional Details (Summary):

️· Cathode Size (Minimum): Typically 0.5 sq. (0.020 sq. in)
️· Cathode Length (Nominal): Frequently around 2.54mm (0.100 inches)
️· Overall Length: Varies significantly by series, from approximately 4.1mm to 12.7 mm (0.161 inches to 0.500 inches)
️· Tolerance: +/- 0.25mm ( +/- 0.010 inches).
️· Maximum Width: Approximately 5.4mm (0.213 inches)

3. Notes and Remarks:

️· Hi-Eff Red / High-Efficiency Red: Refers to a specific type of LED.
️· Trans / Transparent: Indicates a feature related to the LED.
️· 2 1/2 The off-axis angle at which the luminous intensity is half the axial luminous intensity. Describes a performance characteristic.

4. Contact Information:

️· Yellow Stone Corp.:
- Website: [www.ystone.com.tw](http://www.ystone.com.tw)
- Phone: 886-2-28221522
- Fax: 886-2-28202309



Important Considerations: The information is highly specific to the individual series. Always consult the full datasheet for a particular series for complete and accurate specifications. The dimensional data represents nominal values, and actual dimensions may vary slightly.