LO L29K-H2K1-24-Z Equivalent & Substitute Parts

Part Overview

The LO L29K-H2K1-24-Z is an orange diffused LED in 0603 (1608 Metric) surface mount package manufactured by ams-OSRAM USA INC. This component is designated for LED indication applications with a dominant wavelength of 606nm and a forward voltage of 1.8V at 2mA test current. The product status is listed as Not For New Designs, which necessitates identification of active alternative components that meet equivalent electrical and mechanical specifications for ongoing applications and new development efforts.

Substiute Parts

LO L29K-H2K1-24-Z

ams-OSRAM USA INC.In Stock: 1045LO L29K-H2K1-24-Z Datasheet

Current PartRFQ

HSMD-C190

Broadcom LimitedIn Stock: 4502HSMD-C190 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LO L29K-H2K1-24-Z is determined by the following critical parameters:

Package Compatibility: Both the main part and substitute must use the 0603 (1608 Metric) surface mount package to ensure PCB footprint compatibility and automated assembly process alignment.

Optical Characteristics: Orange color classification and diffused lens transparency are required to maintain visual indication consistency in the application circuit.

Electrical Parameters: Forward voltage (Vf), test current, wavelength specifications (dominant and peak), and millicandela rating determine functional equivalence in LED indication circuits.

Environmental & Compliance: RoHS3 compliance and REACH unaffected status ensure regulatory alignment across manufacturing jurisdictions.

Mechanical Dimensions: Lens size, overall package dimensions, and height specifications must accommodate existing PCB layouts and mechanical clearances.

The substitute part HSMD-C190 from Broadcom Limited meets these core substitution criteria within the allowable parameter ranges for orange diffused 0603 SMD LEDs.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The LO L29K-H2K1-24-Z carries a "Not For New Designs" status, indicating ams-OSRAM has discontinued active development and support for this component. The HSMD-C190 substitute maintains "Active" product status from Broadcom Limited, ensuring ongoing availability, technical support, and manufacturing continuity.

Compliance Alignment: Both components are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing and distribution.

Electrical Parameter Differences: The substitute part operates at 2.2V forward voltage compared to the main part's 1.8V, and specifies a 20mA test current versus 2mA. These differences require circuit design review to ensure proper current limiting resistor values and power supply voltage compatibility. The higher millicandela rating (8mcd vs. 6.3mcd) provides increased brightness margin.

Mechanical Compatibility: Package footprint remains identical at 0603 (1608 Metric). The substitute exhibits a maximum height of 0.80mm compared to 0.65mm for the main part. PCB layout clearance verification is necessary to confirm no mechanical interference with adjacent components or solder mask features.

Optical Characteristics: Both components deliver orange wavelength indication within the 604-606nm dominant wavelength range. The 10° wider viewing angle (170° vs. 160°) of the substitute provides enhanced visibility across a broader angular range.

Frequently Asked Questions (FAQ)

Q: Can the HSMD-C190 be used as a direct drop-in replacement for the LO L29K-H2K1-24-Z?

A: The HSMD-C190 is mechanically compatible in the 0603 (1608 Metric) footprint. However, the forward voltage difference (2.2V vs. 1.8V) and test current difference (20mA vs. 2mA) require circuit design modifications. Current limiting resistor values must be recalculated based on the substitute's electrical specifications. PCB clearance verification is necessary due to the 0.15mm height difference.

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

A: The main differences are forward voltage (1.8V vs. 2.2V), test current (2mA vs. 20mA), and millicandela rating (6.3mcd vs. 8mcd). The wavelength specifications remain within the orange spectrum (604-606nm dominant). These differences affect circuit design, power consumption, and brightness output.

Q: Are both parts compliant with current environmental regulations?

A: Yes. Both the LO L29K-H2K1-24-Z and HSMD-C190 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards for electronic component manufacturing.

Q: Why is the LO L29K-H2K1-24-Z marked as "Not For New Designs"?

A: This designation indicates that ams-OSRAM has discontinued active development and support for this component line. New designs should utilize active products such as the HSMD-C190 to ensure long-term availability, technical support, and manufacturing continuity.

Q: What is the impact of the 0.15mm height difference on PCB assembly?

A: The HSMD-C190 has a maximum height of 0.80mm compared to 0.65mm for the main part. Verify that the PCB layout provides adequate clearance above the LED for solder mask features, conformal coating, or adjacent components. This difference is typically negligible for standard PCB designs but should be confirmed during layout review.

Q: How do the viewing angles compare between these parts?

A: The HSMD-C190 provides a 170° viewing angle compared to 160° for the LO L29K-H2K1-24-Z. This 10° wider angle allows the substitute to deliver visible indication across a broader angular range, which may be advantageous in applications requiring wider visibility.

Q: What packaging formats are available for the HSMD-C190?

A: The HSMD-C190 is supplied in Cut Tape (CT) and Digi-Reel® packaging, matching the availability format of the main part for automated assembly processes.