ASMT-JL31-NRS01 Equivalent & Substitute Parts

Part Overview

The ASMT-JL31-NRS01 is a blue 450nm LED manufactured by Broadcom Limited, configured as a 6-SMD surface mount component with flat lead exposed pad. This part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement continuity. The substitute part ASM6-SLD2-NTV0H provides electrical and optical compatibility while maintaining active product status.

Substiute Parts

ASMT-JL31-NRS01

Broadcom LimitedIn Stock: 764ASMT-JL31-NRS01 Datasheet

Current PartRFQ

ASM6-SLD2-NTV0H

Broadcom LimitedIn Stock: 800ASM6-SLD2-NTV0H Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ASMT-JL31-NRS01 with ASM6-SLD2-NTV0H is based on the following electrical and optical parameter alignment:

Wavelength Compatibility: Both parts operate at 450nm (440nm ~ 460nm), ensuring identical color output for blue LED applications.

Test Current Alignment: Both parts specify 350mA as the test current, establishing a common operating point for luminous flux and forward voltage comparison.

Color Specification: Both parts are specified as blue LEDs, maintaining color consistency in the application.

Compliance Alignment: Both parts maintain ROHS3 compliance, REACH unaffected status, and MSL 1 rating, ensuring regulatory and environmental compatibility.

Surface Mount Configuration: Both parts are surface mount devices, supporting PCB assembly compatibility.

The substitute part ASM6-SLD2-NTV0H differs in package configuration (3-SMD, No Lead vs. 6-SMD, Flat Lead Exposed Pad), forward voltage (2.9V vs. 3.2V), maximum current rating (1A vs. 700mA), and thermal characteristics, but maintains functional equivalence for blue 450nm LED applications.

Parameter Comparison

Engineering Selection Recommendations

The ASMT-JL31-NRS01 is classified as obsolete. The ASM6-SLD2-NTV0H is an active product from the same manufacturer, maintaining ROHS3 compliance and REACH unaffected status. Both parts carry MSL 1 rating, indicating no moisture sensitivity constraints during storage and handling.

Selection of ASM6-SLD2-NTV0H as a substitute requires evaluation of the following differences: forward voltage reduction from 3.2V to 2.9V may necessitate circuit adjustment in current-limiting designs; package transition from 6-SMD to 3-SMD with no lead configuration requires PCB layout modification; viewing angle reduction from 165° to 130° affects light distribution characteristics; and improved thermal resistance (3°C/W vs. 9°C/W) provides enhanced thermal performance.

Frequently Asked Questions (FAQ)

Q: Can ASM6-SLD2-NTV0H directly replace ASMT-JL31-NRS01 without PCB modification?

A: No. The package configuration differs (3-SMD, No Lead vs. 6-SMD, Flat Lead Exposed Pad), requiring PCB footprint redesign. Forward voltage differs by 0.3V, potentially requiring circuit adjustment.

Q: Are the wavelength specifications identical?

A: Yes. Both parts operate at 450nm (440nm ~ 460nm), ensuring identical color output for blue LED applications.

Q: What is the impact of the viewing angle difference?

A: ASMT-JL31-NRS01 provides 165° viewing angle; ASM6-SLD2-NTV0H provides 130° viewing angle. Applications requiring wide-angle light distribution may require design consideration.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both parts are ROHS3 compliant, REACH unaffected, and carry MSL 1 rating.

Q: What is the significance of the thermal resistance difference?

A: ASM6-SLD2-NTV0H has superior thermal resistance (3°C/W vs. 9°C/W), providing better heat dissipation and potentially allowing higher sustained current operation.

Q: Is the luminous flux increase significant?

A: ASM6-SLD2-NTV0H provides 730mW (610mW ~ 930mW) compared to ASMT-JL31-NRS01 at 600mW (515mW ~ 685mW), representing approximately 22% higher luminous flux at test current.