HSMB-C192 Equivalent & Substitute Parts

Part Overview

The HSMB-C192 is a blue diffused LED chip in 0603 (1608 Metric) surface mount package manufactured by Broadcom Limited. This component is designed for LED indication applications with a dominant wavelength of 462nm and a forward voltage of 4V at 10mA test current. The product is currently obsolete, making identification of suitable substitute components necessary for ongoing design support and production continuity.

Substiute Parts

HSMB-C192

Broadcom LimitedIn Stock: 8351HSMB-C192 Datasheet

Current PartRFQ

HSMR-C190

Broadcom LimitedIn Stock: 1312HSMR-C190 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The HSMR-C190 is identified as a direct substitute for the HSMB-C192 based on the following substitution criteria:

Mechanical Compatibility:

• Identical package type: 0603 (1608 Metric)
• Identical physical dimensions: 1.60mm L x 0.80mm W
• Identical maximum height: 0.80mm
• Identical mounting type: Surface Mount
• Identical lens style: Rectangle with Flat Top
• Identical lens size: 1.00mm x 0.80mm

Optical Compatibility:

• Identical color: Blue
• Identical lens transparency: Diffused
• Wavelength range within blue spectrum (462nm vs 473nm dominant wavelength)

Environmental & Compliance Compatibility:

• Identical Moisture Sensitivity Level: 2A (4 Weeks)
• Identical REACH Status: REACH Unaffected
• Identical ECCN: EAR99
• Identical HTSUS code: 8541.41.0000

Electrical Differences: The HSMR-C190 operates at a lower forward voltage (3.4V vs 4V) and higher test current (20mA vs 10mA), with significantly higher brightness (55mcd vs 3mcd). These differences require circuit design evaluation but do not preclude substitution in applications where the increased brightness and lower voltage are acceptable.

Parameter Comparison

Engineering Selection Recommendations

The HSMR-C190 is an active product with full RoHS3 compliance, providing supply continuity for the obsolete HSMB-C192. The substitute maintains identical mechanical and package specifications, ensuring PCB layout and assembly compatibility without redesign.

Circuit design modifications are required to accommodate the electrical differences: the HSMR-C190 operates at 3.4V forward voltage and 20mA test current compared to the HSMB-C192's 4V and 10mA specifications. The significantly higher brightness output (55mcd vs 3mcd) may necessitate current-limiting resistor adjustment to achieve equivalent visual indication intensity in the application.

The viewing angle difference (155° vs 170°) is minor and unlikely to impact most indication applications. Both components share identical environmental classifications and regulatory compliance status.

Frequently Asked Questions (FAQ)

Q: Can the HSMR-C190 be used as a direct drop-in replacement for the HSMB-C192?

A: Mechanical and package compatibility is complete. Electrical circuit modifications are required due to differences in forward voltage and test current specifications. The higher brightness of the HSMR-C190 may require resistor value adjustment.

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

A: The primary differences are forward voltage (3.4V vs 4V), test current (20mA vs 10mA), brightness (55mcd vs 3mcd), and viewing angle (155° vs 170°). Both share identical package, size, color, and lens specifications.

Q: Are there any compliance or environmental concerns with substitution?

A: No. Both components have identical REACH status, ECCN classification, and Moisture Sensitivity Level. The HSMR-C190 is RoHS3 compliant, providing improved regulatory alignment.

Q: How does the higher brightness of the HSMR-C190 affect circuit design?

A: The increased brightness (55mcd vs 3mcd) requires evaluation of the current-limiting resistor in the LED circuit. Existing resistor values may produce excessive brightness; adjustment downward may be necessary to match the original visual indication intensity.

Q: Is the 15° reduction in viewing angle significant?

A: For most indication applications, the difference between 170° and 155° viewing angle is negligible. Evaluate based on specific application requirements for LED visibility from different angles.