HDSP-H1A3 Equivalent & Substitute Parts

Part Overview

The HDSP-H1A3 is a red 7-segment LED display module manufactured by Broadcom Limited, featuring a single 1-inch character in common cathode configuration. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement continuity. The HDSP-H1A3 remains functionally viable but is no longer in active production, requiring engineers to identify compatible alternatives for new designs or replacement inventory.

Substiute Parts

HDSP-H1A3

Broadcom LimitedIn Stock: 1090HDSP-H1A3 Datasheet

Current PartRFQ

HDSP-H1E3

Broadcom LimitedIn Stock: 1200HDSP-H1E3 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the HDSP-H1A3 is determined by strict equivalence across the following critical parameters:

• Display Type: 7-Segment configuration
• Number of Characters: Single character (1)
• Character Size: 1.00" (25.40mm)
• Common Pin Configuration: Common Cathode
• Color: Red
• Voltage - Forward (Vf): 2V nominal
• Current - Test: 20mA
• Package / Case: 10-DIP (1.200", 30.48mm)
• Physical Dimensions: 1.339" H x 0.945" W x 0.413" D

The HDSP-H1E3 meets all substitution criteria as a direct equivalent. Both parts share identical electrical specifications, mechanical dimensions, and package footprint. The primary distinction is product status: HDSP-H1E3 is active production, whereas HDSP-H1A3 is obsolete. Wavelength variation (644nm vs. 634nm) falls within acceptable red LED spectrum tolerances and does not preclude substitution for standard applications.

Parameter Comparison

Engineering Selection Recommendations

The HDSP-H1E3 is the direct substitute for HDSP-H1A3 applications. Selection is based on the following engineering factors:

Product Status: HDSP-H1E3 maintains active production status with confirmed inventory availability (1149 pcs), whereas HDSP-H1A3 is obsolete. For new designs or long-term procurement, HDSP-H1E3 is the appropriate choice.

Compliance & Certifications: Both parts maintain identical RoHS3 compliance, REACH unaffected status, and MSL 1 rating. No compliance barriers exist for substitution.

Electrical & Mechanical Equivalence: All critical parameters—forward voltage, test current, power dissipation, package footprint, and physical dimensions—are identical. Pin configuration and common cathode topology are preserved.

Wavelength Consideration: The wavelength difference (644nm vs. 634nm) represents a minor shift within the red LED spectrum. Both values fall within standard red LED classification and do not impact functional compatibility in typical display applications.

Frequently Asked Questions (FAQ)

Q: Can HDSP-H1E3 replace HDSP-H1A3 in existing designs?

A: Yes. HDSP-H1E3 is a direct electrical and mechanical equivalent. All critical parameters—voltage, current, package, dimensions, and pin configuration—are identical. No circuit modifications are required.

Q: What is the difference between HDSP-H1A3 and HDSP-H1E3?

A: The primary difference is product status: HDSP-H1A3 is obsolete, while HDSP-H1E3 is in active production. Wavelength differs slightly (644nm vs. 634nm), but both are within acceptable red LED spectrum tolerances. All other specifications are identical.

Q: Are there any packaging differences?

A: No. Both parts use 10-DIP (1.200", 30.48mm) packaging with identical physical dimensions of 1.339" H x 0.945" W x 0.413" D. PCB footprints are interchangeable.

Q: Does the wavelength difference affect display appearance?

A: The wavelength difference (644nm vs. 634nm) is minor and falls within standard red LED classification. Visual appearance in typical display applications will be imperceptible to the human eye.

Q: Are compliance certifications maintained?

A: Yes. HDSP-H1E3 maintains identical RoHS3 compliance, REACH unaffected status, and MSL 1 rating as HDSP-H1A3. No compliance issues arise from substitution.

Q: What is the inventory status of HDSP-H1E3?

A: HDSP-H1E3 has 1149 pcs available as new original stock, ensuring procurement continuity for current and future applications.