ASMT-QHB2-FEF0E LED Red 618nm 4-PLCC Equivalent & Substitute Parts

Part Overview

The ASMT-QHB2-FEF0E is a surface-mount red LED with a dominant wavelength of 618nm, manufactured by Broadcom Limited in a 4-PLCC package. This component is classified as obsolete, making identification of functionally equivalent substitute parts necessary for ongoing design support and procurement continuity. The part delivers 16 lumens at 150mA test current with a forward voltage of 2.7V typical.

Substiute Parts

ASMT-QHB2-FEF0E

Broadcom LimitedIn Stock: 945ASMT-QHB2-FEF0E Datasheet

Current PartRFQ

ASMT-QHBD-AFH0E

Broadcom LimitedIn Stock: 1801ASMT-QHBD-AFH0E Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ASMT-QHB2-FEF0E is determined by the following critical parameters:

• Color and Wavelength: Red 618nm (611nm ~ 625nm) range
• Package Type: 4-PLCC surface-mount package
• Physical Dimensions: 0.126" L x 0.110" W (3.20mm x 2.80mm), height 0.083" (2.10mm) maximum
• Viewing Angle: 120° optical characteristic
• Manufacturer: Broadcom Limited

The substitute part ASMT-QHBD-AFH0E meets all critical substitution criteria. Both parts share identical wavelength specifications, package geometry, and optical properties. Differences in electrical performance (forward voltage, maximum current, and luminous flux) fall within acceptable ranges for red LED applications and do not preclude direct substitution in circuit designs.

Parameter Comparison

Engineering Selection Recommendations

Both the ASMT-QHB2-FEF0E and ASMT-QHBD-AFH0E are classified as obsolete products. The ASMT-QHBD-AFH0E offers improved electrical performance characteristics, including lower forward voltage (2.5V vs. 2.7V), higher maximum current rating (300mA vs. 150mA), and superior luminous efficiency (64 lm/W vs. 40 lm/W). These enhancements provide design flexibility without compromising optical or mechanical compatibility.

The ASMT-QHBD-AFH0E carries RoHS3 compliance certification, whereas the main part lists REACH Unaffected status. Both parts share identical ECCN (EAR99) and HTSUS (8541.41.0000) classifications. The substitute part features improved moisture sensitivity level (MSL 2, 1 Year) compared to the main part (MSL 2A, 4 Weeks).

Frequently Asked Questions (FAQ)

Q: Can ASMT-QHBD-AFH0E directly replace ASMT-QHB2-FEF0E in existing designs?

A: Yes. Both parts are identical in wavelength (618nm), package type (4-PLCC), physical dimensions (3.20mm x 2.80mm), and viewing angle (120°). The substitute part is mechanically and optically compatible with existing PCB layouts and optical requirements.

Q: What are the key electrical differences between these parts?

A: The substitute part features a lower typical forward voltage (2.5V vs. 2.7V), higher maximum current rating (300mA vs. 150mA), and higher luminous efficiency (64 lm/W vs. 40 lm/W). These differences allow the substitute to deliver greater luminous output at equivalent test current levels.

Q: Are there packaging differences between these parts?

A: Both parts use the 4-PLCC surface-mount package with identical dimensions and height specifications. The substitute part is available in Cut Tape (CT) and Digi-Reel packaging, whereas the main part packaging is listed as dash (-).

Q: What compliance certifications apply to the substitute part?

A: The ASMT-QHBD-AFH0E is RoHS3 compliant and carries REACH Unaffected status. Both parts share identical ECCN (EAR99) and HTSUS (8541.41.0000) export classifications.

Q: Is the substitute part still in production?

A: No. The ASMT-QHBD-AFH0E is classified as obsolete, matching the status of the main part. Both components are available through existing inventory channels only.