R5HD LED Red Diffused Through-Hole Equivalent & Substitute Parts

Part Overview

The R5HD is a red LED indication component manufactured by Bivar Inc., designed for discrete 2V radial through-hole applications. This part features a diffused red lens with a rectangular flat-top design and operates at 20mA test current. The R5HD is classified as obsolete, making identification of compatible substitute parts essential for ongoing design support and component procurement.

Substiute Parts

R5HD

Bivar Inc.In Stock: 1030R5HD Datasheet

Current PartRFQ

R5RD

Bivar Inc.In Stock: 680R5RD Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution compatibility for the R5HD is determined by the following critical parameters:

Mechanical Compatibility:

• Mounting Type: Through Hole (radial configuration)
• Lens Size: 4.90mm x 1.90mm
• Lens Style: Rectangle with Flat Top
• Height (Max): 7.00mm
• Package / Case: Radial

Electrical Compatibility:

• Color: Red
• Lens Transparency: Diffused
• Viewing Angle: 120°
• Current - Test: 20mA
• Moisture Sensitivity Level (MSL): 1 (Unlimited)

The R5RD from Bivar Inc. qualifies as a substitute part based on matching mechanical form factor, mounting configuration, and core electrical operating parameters. Both parts share identical lens dimensions, mounting type, and viewing angle specifications, enabling direct mechanical and electrical substitution in through-hole circuit board applications.

Parameter Comparison

Engineering Selection Recommendations

The R5RD serves as the active production substitute for the obsolete R5HD. Both components share identical mechanical form factors and core electrical specifications, enabling direct substitution in through-hole PCB applications.

Product Status Consideration: The R5HD is classified as obsolete, while the R5RD maintains active product status with current manufacturing availability. Selection of the R5RD ensures access to ongoing component supply and manufacturing support.

Compliance and Certifications: The R5RD carries RoHS3 compliance certification. Both parts are classified under ECCN EAR99 and HTSUS 8541.41.0000, maintaining consistent regulatory and trade classification.

Electrical Parameter Variance: The R5RD operates at a forward voltage of 2.1V compared to the R5HD at 2V, representing a 0.1V difference within acceptable operating tolerances for red LED indication circuits. The peak wavelength differs by 75nm (R5HD at 625nm versus R5RD at 700nm), reflecting a shift toward the longer wavelength portion of the red spectrum. The R5RD exhibits a lower millicandela rating of 0.5mcd compared to the R5HD at 8mcd, indicating reduced luminous intensity output.

Frequently Asked Questions (FAQ)

Q: Can the R5RD directly replace the R5HD in existing circuit designs?

A: Yes. Both components share identical mechanical dimensions, lens configuration, mounting type, and core electrical test parameters. The R5RD is mechanically and electrically compatible for through-hole PCB applications designed for the R5HD.

Q: What is the significance of the 0.1V forward voltage difference between R5HD and R5RD?

A: The forward voltage variance of 0.1V (2V versus 2.1V) falls within normal operating tolerances for red LED indication circuits. This difference does not prevent substitution and reflects typical manufacturing variation across LED components.

Q: Why does the R5RD have a lower millicandela rating than the R5HD?

A: The R5RD is rated at 0.5mcd while the R5HD is rated at 8mcd. This represents a difference in luminous intensity output. Circuit designs must account for this reduced brightness when selecting the R5RD as a substitute, particularly in applications where specific brightness levels are required.

Q: What does the 75nm wavelength difference mean for color appearance?

A: The R5RD operates at 700nm peak wavelength compared to the R5HD at 625nm. Both wavelengths fall within the red spectrum; however, the R5RD produces a wavelength shifted toward the longer red wavelength range. Both components maintain red lens color and diffused transparency, ensuring consistent visual appearance in indication applications.

Q: Is the R5RD available in the same packaging as the R5HD?

A: Both components use radial through-hole packaging with identical mechanical dimensions (4.90mm x 1.90mm lens size, 7.00mm maximum height). The R5RD is supplied in bulk packaging, while the R5HD was supplied in standard packaging. The mechanical compatibility remains unchanged.

Q: What is the advantage of selecting the R5RD over the R5HD?

A: The R5RD maintains active product status with current manufacturing availability, whereas the R5HD is obsolete. Selecting the R5RD ensures reliable component supply and ongoing manufacturing support for new designs and production runs.

Q: Are there any compliance differences between the R5HD and R5RD?

A: The R5RD carries RoHS3 compliance certification. Both components share identical ECCN (EAR99) and HTSUS (8541.41.0000) classifications. The R5RD's RoHS3 status provides additional environmental compliance assurance for regulated applications.