ASMT-AR00-AST01 Equivalent & Substitute Parts

Part Overview

The ASMT-AR00-AST01 is a red LED lighting component manufactured by Broadcom Limited, featuring a 625nm wavelength and 2-SMD Gull Wing surface mount package. This part is classified as obsolete, necessitating identification of functionally equivalent substitute components for ongoing design requirements and procurement needs.

Substiute Parts

ASMT-AR00-AST01

Broadcom LimitedIn Stock: 1081ASMT-AR00-AST01 Datasheet

Current PartRFQ

ASMT-MR00-AHJ00

Broadcom LimitedIn Stock: 2516ASMT-MR00-AHJ00 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ASMT-AR00-AST01 is determined by the following critical parameters:

Color and Wavelength Compatibility: Both the main part and substitute must operate in the red spectrum. The ASMT-AR00-AST01 operates at 625nm. Substitute parts must maintain red color output within acceptable wavelength ranges for the intended application.

Electrical Characteristics: Test current (350mA), maximum current rating (500mA), and forward voltage (2.1V typical) define the electrical operating envelope. Substitute parts must accommodate these electrical parameters within their specified ratings.

Optical Performance: Luminous flux (65lm) and efficiency (88 lm/W) at test conditions establish the light output baseline. Substitute parts must deliver comparable optical performance.

Mounting and Package Compatibility: Surface mount technology and physical dimensions (7.40mm x 7.40mm footprint, 4.20mm maximum height) determine PCB integration feasibility. Package type changes require circuit board redesign.

Product Status: Obsolete status of the main part requires substitution. Substitute parts with active or standard product status ensure long-term availability.

Parameter Comparison

Engineering Selection Recommendations

Wavelength Compatibility: The ASMT-MR00-AHJ00 operates at 628nm within the range 620nm to 635nm, compared to the main part's 625nm. Both wavelengths fall within the red spectrum and are visually indistinguishable in most applications.

Electrical Parameter Differences: The substitute part exhibits a higher typical forward voltage (2.4V versus 2.1V) and a reduced maximum current rating (350mA versus 500mA). Circuit designs must accommodate the increased voltage drop and operate within the lower current limit.

Optical Performance Trade-off: The substitute part delivers lower luminous flux (45lm versus 65lm) and reduced efficiency (54 lm/W versus 88 lm/W). Applications requiring the original light output level may require design modifications or multiple substitute components.

Package Reconfiguration Required: The substitute part uses TO-252-3 DPAK packaging versus the original 2-SMD Gull Wing package. Physical dimensions differ (8.50mm x 8.50mm versus 7.40mm x 7.40mm), necessitating PCB layout redesign and potential circuit board space reallocation.

Compliance Status: The substitute part carries ROHS3 compliance certification, whereas the main part does not specify compliance status. Both parts are classified as obsolete, indicating limited future availability.

Frequently Asked Questions (FAQ)

Q: Can the ASMT-MR00-AHJ00 directly replace the ASMT-AR00-AST01 without PCB modifications?

A: No. The substitute part uses a different package type (TO-252-3 DPAK versus 2-SMD Gull Wing) and has different physical dimensions. PCB layout redesign is required.

Q: What is the impact of the 0.3V forward voltage increase on circuit operation?

A: The ASMT-MR00-AHJ00 requires 2.4V typical forward voltage compared to 2.1V for the main part. Power supply and current-limiting circuits must be recalculated to accommodate this voltage difference.

Q: Will the substitute part produce equivalent light output?

A: No. The ASMT-MR00-AHJ00 produces 45lm compared to the main part's 65lm at test conditions. Applications sensitive to light output levels require evaluation of this 30% reduction in luminous flux.

Q: Are both parts suitable for the same current levels?

A: No. The main part supports up to 500mA maximum current, while the substitute part is limited to 350mA maximum. Circuit designs must operate within the substitute part's lower current rating.

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

A: The main part provides a 140° viewing angle, while the substitute part offers 120°. Applications requiring wide-angle light distribution may be affected by this 20° reduction.

Q: Is the substitute part RoHS compliant?

A: Yes. The ASMT-MR00-AHJ00 is ROHS3 compliant. The main part does not specify RoHS compliance status.

Q: Are both parts currently available for procurement?

A: Both parts are classified as obsolete. Availability is limited to existing inventory. Long-term procurement planning should identify alternative active-status components.