HSMH-C190 Equivalent & Substitute Parts

Part Overview

The HSMH-C190 is a red diffused LED indicator manufactured by Broadcom Limited, designed for discrete indication applications in 0603 (1608 Metric) surface mount packages. This component operates at 1.8V forward voltage with a 17mcd brightness rating and 639nm dominant wavelength. The product status is listed as Obsolete, necessitating identification of functionally equivalent alternatives for ongoing production and maintenance applications. Substitute parts must maintain compatibility with the 0603 package footprint, surface mount assembly processes, and the electrical characteristics required for red LED indication circuits.

Substiute Parts

HSMH-C190

Broadcom LimitedIn Stock: 53126HSMH-C190 Datasheet

Current PartRFQ

HSMH-H190

Broadcom LimitedIn Stock: 13422HSMH-H190 Datasheet

MFR RecommendedRFQ

BR1111C-TR

Stanley Electric CoIn Stock: 19550BR1111C-TR Datasheet

MFR RecommendedRFQ

CMDA6AR7D1S

Visual Communications Company - VCCIn Stock: 4371CMDA6AR7D1S Datasheet

MFR RecommendedRFQ

SM0603SRC

Bivar Inc.In Stock: 885SM0603SRC Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the HSMH-C190 is determined by the following critical parameters:

• Package Compatibility: All substitutes must use 0603 (1608 Metric) surface mount package with identical footprint dimensions (1.60mm L x 0.80mm W, 0.80mm max height)
• Electrical Characteristics: Forward voltage (Vf) must fall within acceptable operating range (1.7V to 2.1V) to maintain circuit compatibility with existing current-limiting resistor designs
• Optical Properties: Red color specification with wavelength range 637nm to 660nm (dominant to peak) ensures visual consistency; lens transparency (diffused or clear) affects light distribution but does not prevent substitution
• Brightness Rating: Millicandela values between 7.2mcd and 90mcd provide functional indication across different application requirements
• Viewing Angle: Minimum 130° viewing angle maintains visibility requirements for indicator applications
• Compliance: RoHS3 compliance and REACH Unaffected status required for regulatory alignment

The four identified substitutes meet these criteria while accommodating variations in forward voltage, brightness, and lens characteristics.

Parameter Comparison

Engineering Selection Recommendations

HSMH-H190 (Broadcom Limited, Active Status): This substitute offers the closest electrical and optical match with identical forward voltage tolerance band and 170° viewing angle. Active product status ensures long-term availability. The 7.2mcd brightness is lower than the original 17mcd, suitable for applications where reduced brightness is acceptable or preferred. Identical 2A MSL rating and Broadcom manufacturer continuity support supply chain consistency.

BR1111C-TR (Stanley Electric Co, Obsolete Status): This substitute provides forward voltage of 1.7V, within acceptable operating range. The 11.7mcd brightness rating falls between lower and higher alternatives. Viewing angle of 136° to 141° is reduced compared to the original 170°, affecting peripheral visibility. Obsolete status limits future availability. Cut Tape packaging differs from original specification.

CMDA6AR7D1S (Visual Communications Company - VCC, Not For New Designs): This substitute delivers the highest brightness at 90mcd with 1.9V forward voltage and 170° viewing angle. Peak wavelength of 637nm aligns with red spectrum requirements. Not For New Designs status restricts use to legacy system maintenance only. MSL rating of 1 (Unlimited) provides superior moisture protection during storage and handling.

SM0603SRC (Bivar Inc., Active Status): This substitute features 1.85V forward voltage and 28mcd brightness with Active product status ensuring availability. Clear lens transparency differs from diffused specification, producing more concentrated light output. 130° viewing angle is reduced but remains functional for indication purposes. MSL rating of 4 (72 Hours) requires controlled storage conditions.

Frequently Asked Questions (FAQ)

Q: Can HSMH-H190 be used as a direct replacement for HSMH-C190?

A: HSMH-H190 is electrically and mechanically compatible. Both share identical 0603 package dimensions, 1.8V to 2.1V forward voltage range, and 170° viewing angle. The primary difference is brightness: HSMH-H190 at 7.2mcd versus HSMH-C190 at 17mcd. Substitution is valid when reduced brightness is acceptable for the application. HSMH-H190 active status provides superior long-term availability.

Q: What is the impact of forward voltage differences among substitutes?

A: Forward voltage variations (1.7V to 2.1V) affect circuit current-limiting resistor calculations. A circuit designed for 1.8V will experience approximately 5.6% higher current at 1.9V and 16.7% lower current at 2.1V, assuming constant resistor value. Resistor adjustment may be required to maintain consistent brightness and component reliability. Verify circuit design margins before substitution.

Q: How does lens transparency affect substitution compatibility?

A: Diffused lenses scatter light uniformly across the viewing angle, while clear lenses produce more concentrated output. SM0603SRC (clear lens) versus HSMH-C190 (diffused lens) will appear brighter in the direct viewing direction but dimmer at extreme angles. Application requirements determine acceptability. Indicator applications typically tolerate either transparency type.

Q: Are all substitutes suitable for new product designs?

A: No. BR1111C-TR and CMDA6AR7D1S carry Obsolete or Not For New Designs status, restricting use to legacy system maintenance. HSMH-H190 and SM0603SRC maintain Active status and are appropriate for new designs. Consult product lifecycle documentation before committing to substitutes in production designs.

Q: What are the moisture sensitivity implications for storage and assembly?

A: MSL ratings determine maximum storage duration at specified humidity before baking is required. CMDA6AR7D1S (MSL 1, Unlimited) requires no special storage precautions. HSMH-C190 and HSMH-H190 (MSL 2A, 4 Weeks) require controlled storage. BR1111C-TR and SM0603SRC (MSL 4, 72 Hours) demand strict humidity control and rapid assembly after package opening. Verify assembly process timelines against MSL requirements.

Q: Can viewing angle reduction from 170° to 130° or 136° impact application performance?

A: Viewing angle reduction affects peripheral visibility. Applications requiring wide-angle indication (such as omnidirectional status lights) may experience reduced visibility at extreme angles. Direct-view applications with fixed observer positions tolerate reduced angles. Evaluate specific application geometry and observer positioning before accepting reduced viewing angle substitutes.