HSMA-S670 Equivalent & Substitute Parts

Part Overview

The HSMA-S670 is an amber diffused SMD LED from Broadcom Limited's SunPower series, designed for discrete indication applications. This component features a 590nm dominant wavelength with 65mcd brightness rating in a compact 0805 (2012 Metric) surface mount package. The part is currently classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing production and maintenance applications.

Substiute Parts

HSMA-S670

Broadcom LimitedIn Stock: 721HSMA-S670 Datasheet

Current PartRFQ

HSMA-C170

Broadcom LimitedIn Stock: 65138HSMA-C170 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the HSMA-S670 is determined by strict alignment of the following electrical and mechanical parameters:

Critical Matching Parameters:

• Color: Amber
• Lens Transparency: Diffused
• Package / Case: 0805 (2012 Metric)
• Mounting Type: Surface Mount
• Voltage - Forward (Vf) (Typ): 1.9V
• Current - Test: 20mA

Allowable Variation Parameters:

• Wavelength - Dominant: ±5nm tolerance acceptable for amber indication applications
• Wavelength - Peak: ±5nm tolerance acceptable
• Millicandela Rating: Higher brightness ratings are acceptable; lower ratings are not
• Viewing Angle: ±10° variation acceptable for standard indication circuits
• Physical dimensions: Minor variations within 0805 package specification acceptable

The HSMA-C170 qualifies as a direct substitute based on matching all critical parameters while providing improved specifications in brightness (90mcd vs 65mcd) and viewing angle (170° vs 165°).

Parameter Comparison

Engineering Selection Recommendations

The HSMA-C170 is the manufacturer-recommended substitute for the obsolete HSMA-S670. Selection of this alternative is based on the following engineering criteria:

Product Status: The HSMA-C170 maintains active product status with Broadcom Limited, ensuring continued availability and supply chain reliability. The HSMA-S670 obsolete status creates sourcing constraints for new production and long-term maintenance applications.

Compliance & Certifications: Both components share identical REACH Status (REACH Unaffected) and ECCN classification (EAR99). The HSMA-C170 carries RoHS3 Compliant certification, providing enhanced environmental compliance for regulated applications.

Electrical Compatibility: Forward voltage (1.9V) and test current (20mA) are identical, ensuring direct circuit compatibility without modification to current-limiting resistor values or power supply specifications.

Optical Performance: The HSMA-C170 provides superior optical characteristics with 90mcd brightness versus 65mcd, and 170° viewing angle versus 165°. These improvements maintain or exceed the original design intent for indication applications.

Mechanical Compatibility: Both components utilize identical 0805 (2012 Metric) surface mount packaging with matching footprints. The HSMA-C170 reduced height (0.80mm vs 1.25mm) provides additional design flexibility for space-constrained applications.

Frequently Asked Questions (FAQ)

Q: Can the HSMA-C170 be used as a direct replacement for the HSMA-S670 without circuit modification?

A: Yes. The HSMA-C170 is electrically and mechanically compatible with the HSMA-S670. Identical forward voltage (1.9V) and test current (20mA) specifications eliminate the need for resistor or power supply adjustments. PCB footprints are identical for 0805 (2012 Metric) surface mount placement.

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

A: The HSMA-C170 provides improved brightness (90mcd vs 65mcd), wider viewing angle (170° vs 165°), and reduced component height (0.80mm vs 1.25mm). Wavelength specifications differ by 2-3nm within acceptable amber indication tolerances. The HSMA-C170 maintains active product status versus the obsolete HSMA-S670.

Q: Are there any optical performance differences that would affect circuit design?

A: No. Both components are amber diffused LEDs with identical forward voltage and test current. The HSMA-C170 higher brightness rating provides improved visibility margin without requiring circuit redesign. Wavelength differences (590nm vs 592nm dominant) are imperceptible in amber indication applications.

Q: What is the moisture sensitivity level for both components?

A: Both the HSMA-S670 and HSMA-C170 carry MSL 2A (4 Weeks) classification, requiring identical moisture control and storage procedures during manufacturing and assembly.

Q: Is the HSMA-C170 available in the same packaging format?

A: Yes. Both components are supplied in 0805 (2012 Metric) surface mount packages. The HSMA-C170 is available in Cut Tape (CT) and Digi-Reel packaging formats, providing standard production supply options.