5RDL Red Diffused LED T-1 3/4 Through Hole

Part Overview

The Bivar Inc. 5RDL is a red diffused LED indicator in T-1 3/4 (5mm) through-hole package designed for discrete red LED indication applications. This component operates at a forward voltage of 2.6V and is rated for 2mA test current with a moderate brightness of 0.5mcd. The product is currently classified as obsolete, necessitating identification of active substitute components to maintain design continuity and ensure ongoing component availability for production and maintenance applications.

Substiute Parts

5RDL

Bivar Inc.In Stock: 8215RDL Datasheet

Current PartRFQ

5RD

Bivar Inc.In Stock: 12395RD Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

The 5RDL can be substituted with the Bivar Inc. 5RD based on the following electrical and mechanical compatibility parameters:

Common Parameters (Exact Match):

• Color: Red
• Lens Transparency: Diffused
• Lens Style: Round with Domed Top
• Lens Size: 5mm, T-1 3/4
• Viewing Angle: 45°
• Mounting Type: Through Hole (Radial)
• Wavelength - Peak: 700nm
• Package / Case: Radial
• Height (Max): 8.50mm
• Moisture Sensitivity Level: 1 (Unlimited)

Allowable Parameter Variations:

• Forward Voltage (Vf): 2.6V → 2.1V (lower voltage, forward compatible)
• Current - Test: 2mA → 20mA (higher rated current capability)
• Millicandela Rating: 0.5mcd → 2mcd (higher brightness output)

The 5RD operates at a lower forward voltage (2.1V vs. 2.6V) and supports significantly higher test current (20mA vs. 2mA) while maintaining identical mechanical and optical characteristics. The increased brightness (2mcd vs. 0.5mcd) provides enhanced visibility with the same form factor and package specifications.

Parameter Comparison

Engineering Selection Recommendations

The Bivar Inc. 5RD is the appropriate substitute for the obsolete 5RDL. The substitution is supported by:

1. Product Status: The 5RD is in active production status, ensuring availability for new designs and ongoing procurement, whereas the 5RDL is classified as obsolete with no continued manufacturing.

2. Compliance: The 5RD carries ROHS3 compliance certification, meeting current environmental and regulatory standards for electronic component manufacturing.

3. Mechanical Compatibility: Both components share identical physical dimensions (8.50mm maximum height), lens size (5mm, T-1 3/4), and radial through-hole package configuration, enabling direct mechanical interchange without PCB redesign.

4. Electrical Forward Compatibility: The 5RD's lower forward voltage (2.1V vs. 2.6V) and higher rated current (20mA vs. 2mA) provide greater operational flexibility. Circuits designed for the 5RDL will operate with the 5RD using existing current-limiting resistor calculations or existing circuit designs with reduced power consumption.

5. Enhanced Performance: The 5RD delivers superior brightness (2mcd vs. 0.5mcd) while maintaining the same diffused red lens characteristics and 45° viewing angle.

Frequently Asked Questions (FAQ)

Q: Can the 5RD be used as a direct replacement for 5RDL in existing designs? A: Yes. The 5RD is mechanically and optically compatible with the 5RDL. Both use the same 5mm T-1 3/4 through-hole radial package with 8.50mm maximum height. The lower forward voltage of the 5RD (2.1V vs. 2.6V) may reduce current draw in existing designs, potentially requiring resistor recalculation to achieve equivalent brightness output if the original design was current-limited.

Q: What are the key electrical differences between 5RDL and 5RD? A: The 5RD operates at a lower forward voltage (2.1V vs. 2.6V) and supports higher test current (20mA vs. 2mA). The 5RD also provides higher brightness output (2mcd vs. 0.5mcd). These differences allow the 5RD to function effectively across a wider range of circuit configurations and current levels.

Q: Are the optical characteristics identical between 5RDL and 5RD? A: Yes. Both components feature red diffused lenses, identical lens size (5mm T-1 3/4), identical peak wavelength (700nm), and identical viewing angle (45°). The primary optical difference is brightness output, with the 5RD rated at 2mcd compared to the 5RDL at 0.5mcd.

Q: Does the 5RD meet current environmental standards? A: Yes. The 5RD is ROHS3 compliant, meeting current regulatory requirements for hazardous substance restrictions in electronic components. The 5RDL specification does not include RoHS certification status.

Q: Are there any package or mounting considerations when substituting 5RD for 5RDL? A: No. Both components use identical through-hole radial packages with the same maximum height (8.50mm). No PCB modifications or component positioning adjustments are required for mechanical interchange. Both components carry MSL rating 1 (Unlimited), indicating equivalent moisture handling requirements.