HDSP-C5E3 Equivalent & Substitute Parts

Part Overview

The HDSP-C5E3 is a single-character red 7-segment LED display module manufactured by Broadcom Limited, designed for numeric and alphanumeric display applications. This component features a common cathode configuration with a 0.52" digit height, operating at 2V forward voltage with a 20mA test current. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support, maintenance, and new design implementations where legacy compatibility is required.

Substiute Parts

HDSP-C5E3

Broadcom LimitedIn Stock: 968HDSP-C5E3 Datasheet

Current PartRFQ

LDS-C5644RI

Lumex Opto/Components Inc.In Stock: 707LDS-C5644RI Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the HDSP-C5E3 is determined by strict alignment with the following critical parameters:

Primary Substitution Criteria:

• Display Type: 7-Segment (single character)
• Common Pin Configuration: Common Cathode
• Color: Red
• Package / Case: 10-DIP (0.600", 15.24mm)
• Voltage - Forward (Vf): 2V nominal
• Current - Test: 10mA to 20mA range

Secondary Compatibility Factors:

• Digit/Alpha Size: 0.52" to 0.56" (13.21mm to 14.22mm) — minor size variation acceptable within standard PCB layout tolerances
• Wavelength - Peak: 635nm to 640nm — red spectrum consistency
• Millicandela Rating: 3.9mcd to 4mcd — brightness within acceptable operational range
• Physical Dimensions: Height and width must remain within ±0.02" tolerance for standard DIP socket compatibility

The LDS-C5644RI from Lumex Opto/Components Inc. meets all primary substitution criteria and is classified as an active product, providing long-term availability and supply chain continuity.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: LDS-C5644RI (Lumex Opto/Components Inc.)

The LDS-C5644RI is the recommended equivalent for HDSP-C5E3 applications based on the following engineering factors:

• Product Status Alignment: The LDS-C5644RI is classified as active, providing assured long-term supply availability compared to the obsolete HDSP-C5E3.
• Regulatory Compliance: The LDS-C5644RI is ROHS3 compliant, meeting current environmental and hazardous substance restrictions. The HDSP-C5E3 compliance status is not specified.
• Package Compatibility: Both components utilize identical 10-DIP (0.600", 15.24mm) packaging, enabling direct PCB socket substitution without layout modification.
• Electrical Equivalence: Forward voltage (2V), common cathode configuration, and red wavelength (635nm vs. 640nm) are functionally equivalent for standard display applications.
• Design Considerations: The LDS-C5644RI operates at 10mA test current (versus 20mA for HDSP-C5E3) and exhibits higher maximum power dissipation (105mW vs. 57.5mW). Driver circuit current sourcing capability and thermal management must be evaluated during integration.

Frequently Asked Questions (FAQ)

Q: Can the LDS-C5644RI be used as a direct drop-in replacement for the HDSP-C5E3?

A: Yes, for standard display applications. Both components share identical 10-DIP package footprints, common cathode configuration, 2V forward voltage, and red color specification. However, the LDS-C5644RI operates at 10mA test current compared to the HDSP-C5E3's 20mA specification. Verify that the driver circuit can source the required current and that thermal design accommodates the higher maximum power dissipation (105mW).

Q: What is the significance of the digit size difference (0.52" vs. 0.56")?

A: The 0.04" size increase in the LDS-C5644RI represents approximately 3% larger character height. This variation falls within standard mechanical tolerance for DIP socket compatibility and will not affect electrical function. Visual appearance will be marginally larger; assess whether this is acceptable for your application's display requirements.

Q: Are there any compliance or regulatory differences between these parts?

A: The LDS-C5644RI is ROHS3 compliant, meeting current environmental regulations for hazardous substance restrictions. The HDSP-C5E3 compliance status is not specified in available documentation. For applications subject to environmental or regulatory requirements, the LDS-C5644RI provides documented compliance assurance.

Q: How do the wavelength specifications (640nm vs. 635nm) affect visual appearance?

A: Both wavelengths fall within the standard red spectrum (620nm–700nm). The 5nm difference is imperceptible to human vision and will not produce visually distinguishable color variation in typical display applications.

Q: What should I verify before implementing the LDS-C5644RI as a substitute?

A: Confirm that your driver circuit can source 10mA per segment (or verify operation at the lower current specification). Evaluate thermal design to accommodate the higher maximum power dissipation. Perform functional testing with your specific application to confirm brightness and visual appearance are acceptable. Verify PCB layout clearances for the slightly increased depth dimension (0.315" vs. 0.272").