Equivalent & Substitute Parts for 3ADL-F

Part Overview

The 3ADL-F is an amber LED indicator manufactured by Bivar Inc., designed for through-hole mounting applications requiring discrete 2V radial configuration. This component is classified as obsolete, necessitating identification of active equivalent parts to maintain design continuity and ensure supply chain availability. The 3ADL-F delivers 4 millicandela output with a 40-degree viewing angle and diffused amber lens, suitable for standard indication applications in electronic equipment.

Substiute Parts

3ADL-F

Bivar Inc.In Stock: 10153ADL-F Datasheet

Current PartRFQ

3AD-F

Bivar Inc.In Stock: 10123AD-F Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 3ADL-F is determined by strict alignment of the following parameters:

Primary Compatibility Criteria:

• Color: Amber (fixed requirement)
• Lens Transparency: Diffused (fixed requirement)
• Lens Size: 3mm, T-1 (fixed requirement)
• Voltage - Forward (Vf): 2V (fixed requirement)
• Mounting Type: Through Hole (fixed requirement)
• Wavelength - Peak: 605nm (fixed requirement)
• Package / Case: Radial (fixed requirement)
• Height (Max): 5.30mm (fixed requirement)

Variable Parameters Permitting Substitution:

• Millicandela Rating: May vary based on circuit design tolerance
• Current - Test: May vary with brightness specification
• Viewing Angle: May vary within application requirements
• Product Status: Active status preferred for obsolete parts

The 3AD-F meets all primary compatibility criteria while offering active product status and enhanced brightness characteristics.

Parameter Comparison

Engineering Selection Recommendations

The 3AD-F serves as a direct substitute for the obsolete 3ADL-F based on identical electrical and mechanical specifications across all primary compatibility parameters. The 3AD-F provides the following advantages:

Product Status: The 3AD-F maintains active product status with 933 pieces in current inventory, ensuring supply chain continuity for the 3ADL-F obsolescence transition.

Compliance: The 3AD-F carries ROHS3 compliance certification, meeting current environmental and regulatory requirements for electronic component procurement.

Performance Characteristics: The 3AD-F delivers 25 millicandela output at 20mA test current, compared to the 3ADL-F's 4 millicandela at 2mA. This represents a 6.25x brightness increase. The viewing angle narrows from 40 degrees to 35 degrees. These performance differences require circuit-level evaluation to confirm compatibility with existing current-limiting resistor networks and brightness requirements.

Packaging: Both components utilize identical radial through-hole packaging with 5.30mm maximum height, ensuring direct PCB footprint compatibility without layout modification.

Selection of the 3AD-F is appropriate for applications where the increased brightness and narrower viewing angle align with circuit design specifications and optical requirements.

Frequently Asked Questions (FAQ)

Q: Can the 3AD-F directly replace the 3ADL-F without circuit modification?

A: The 3AD-F shares identical electrical voltage (2V forward) and mechanical form factor with the 3ADL-F. However, the 3AD-F operates at 20mA test current versus the 3ADL-F's 2mA, requiring verification that existing current-limiting resistors accommodate this tenfold increase. The 6.25x brightness increase may necessitate resistor adjustment to maintain desired indication intensity.

Q: What is the significance of the viewing angle difference between these parts?

A: The 3ADL-F provides a 40-degree viewing angle, while the 3AD-F provides 35 degrees. This 5-degree reduction narrows the light distribution cone. Applications requiring wide-angle visibility across multiple viewing positions must evaluate whether the narrower angle meets operational requirements.

Q: Are both parts suitable for new designs?

A: The 3ADL-F is classified as obsolete and unsuitable for new designs. The 3AD-F carries active product status and ROHS3 compliance, making it appropriate for new design implementations and production continuity.

Q: What packaging options are available for each part?

A: The 3ADL-F is supplied in standard packaging configuration. The 3AD-F is supplied in bulk packaging. Both utilize identical radial through-hole form factor with 3mm T-1 lens size and 5.30mm maximum height.

Q: How do the brightness specifications compare?

A: The 3ADL-F delivers 4 millicandela at 2mA test current. The 3AD-F delivers 25 millicandela at 20mA test current. The 3AD-F provides significantly higher brightness output. Circuit design must accommodate the higher current requirement through appropriate resistor selection.