HSMH-C170 Equivalent & Substitute Parts

Part Overview

The HSMH-C170 is a red diffused LED indicator manufactured by Broadcom Limited, designed for discrete indication applications in 0805 (2012 Metric) surface mount packages. This component operates at 1.8V forward voltage with a 17mcd brightness rating and 170° viewing angle. The product is classified as obsolete, making substitute parts necessary for new designs and ongoing production requirements. Equivalent alternatives maintain the core functional parameters while offering active product status or improved availability.

Substiute Parts

HSMH-C170

Broadcom LimitedIn Stock: 101300HSMH-C170 Datasheet

Current PartRFQ

HSMH-H170

Broadcom LimitedIn Stock: 43403HSMH-H170 Datasheet

MFR RecommendedRFQ

7012X1

Visual Communications Company - VCCIn Stock: 21477012X1 Datasheet

MFR RecommendedRFQ

BR1112H-TR

Stanley Electric CoIn Stock: 1563BR1112H-TR Datasheet

MFR RecommendedRFQ

CMDA5AR7D1S

Visual Communications Company - VCCIn Stock: 31156CMDA5AR7D1S Datasheet

MFR RecommendedRFQ

CMDA5DR7D1S

Visual Communications Company - VCCIn Stock: 30481CMDA5DR7D1S Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the HSMH-C170 is determined by the following critical parameters:

Primary Compatibility Criteria:

• Color: Red
• Lens Transparency: Diffused
• Package / Case: 0805 (2012 Metric)
• Mounting Type: Surface Mount
• Wavelength - Peak: 660nm (±tolerance range)
• Current - Test: 20mA

Secondary Compatibility Criteria:

• Voltage - Forward (Vf): 1.6V to 2.1V range acceptable for most applications
• Viewing Angle: 150° to 170° acceptable
• Millicandela Rating: 7.2mcd to 90mcd range
• RoHS3 Compliance required

The substitute parts listed maintain the core optical and mechanical specifications while offering variations in forward voltage and brightness that remain functionally compatible within standard circuit design tolerances.

Parameter Comparison

Engineering Selection Recommendations

HSMH-H170 (Broadcom Limited): Active product status with identical manufacturer lineage. Forward voltage of 2.1V requires circuit verification for compatibility. Reduced brightness (7.2mcd vs. 17mcd) suitable for applications where lower luminous intensity is acceptable. Maintains ROHS3 compliance and 2A MSL rating.

7012X1 (Visual Communications Company - VCC): Active product with clear lens transparency instead of diffused. Forward voltage of 1.7V provides closest match to original specification. Brightness of 11.7mcd within acceptable range. ROHS3 compliant with extended MSL rating (2, 1 Year). Lens transparency difference requires optical design consideration.

BR1112H-TR (Stanley Electric Co): Obsolete product status limits long-term availability. Forward voltage of 1.7V and 11.7mcd brightness compatible with original application. Reduced viewing angle (150° vs. 170°) and higher MSL requirement (4, 72 Hours) may impact storage and handling procedures. ROHS3 compliant.

CMDA5AR7D1S (Visual Communications Company - VCC): Active product with highest brightness rating (90mcd). Forward voltage of 1.9V and peak wavelength of 637nm represent minor deviations. Suitable for applications requiring increased luminous intensity. ROHS3 compliant with 2A MSL rating.

CMDA5DR7D1S (Visual Communications Company - VCC): Active product with lowest forward voltage (1.6V) and brightness of 11.2mcd. Peak wavelength of 660nm matches original specification. Optimal for low-voltage circuit designs. ROHS3 compliant with 2A MSL rating.

Frequently Asked Questions (FAQ)

Q: Can HSMH-C170 be replaced with HSMH-H170 in existing designs? A: HSMH-H170 maintains the same manufacturer and diffused lens transparency. The 2.1V forward voltage requires circuit verification to ensure proper current limiting and brightness expectations. The 7.2mcd rating is lower than the original 17mcd.

Q: What is the primary difference between 7012X1 and HSMH-C170? A: The 7012X1 features a clear lens instead of diffused, resulting in different light distribution characteristics. Forward voltage is 1.7V versus 1.8V. Both are 0805 surface mount packages with ROHS3 compliance.

Q: Why does CMDA5AR7D1S have a different peak wavelength (637nm vs. 660nm)? A: The 637nm peak wavelength represents a slightly shorter wavelength within the red spectrum. This produces a marginally different color appearance while maintaining red indication functionality. The 90mcd brightness is significantly higher than the original 17mcd.

Q: Are all substitute parts compatible with the original PCB footprint? A: All substitute parts use the 0805 (2012 Metric) surface mount package with identical 2.00mm L x 1.25mm W dimensions, ensuring PCB footprint compatibility.

Q: What is the impact of different forward voltages on circuit design? A: Forward voltage variations (1.6V to 2.1V) affect the series resistor calculation for current limiting. Circuit designers must recalculate the resistor value based on the selected substitute part's Vf to maintain 20mA test current.

Q: Which substitute offers the best long-term availability? A: CMDA5AR7D1S and CMDA5DR7D1S both carry active product status from Visual Communications Company - VCC, providing the most reliable long-term supply chain position.

Q: Is moisture sensitivity level a critical factor in substitute selection? A: MSL ratings affect storage and handling procedures. HSMH-C170, HSMH-H170, CMDA5AR7D1S, and CMDA5DR7D1S all carry 2A (4 Weeks) ratings. BR1112H-TR requires more stringent handling with 4 (72 Hours) rating. 7012X1 offers extended MSL (2, 1 Year) for less critical storage environments.