HDSP-C1Y1 Equivalent & Substitute Parts

Part Overview

The HDSP-C1Y1 is a 1-inch yellow 7-segment LED display module manufactured by Broadcom Limited, configured as a single character common anode display in a 10-DIP package. This component is classified as obsolete, making identification of functionally equivalent substitute parts essential for ongoing design support and production continuity. The part operates at 4.3V forward voltage with a 20mA test current and delivers 6.9mcd brightness output at a peak wavelength of 587nm.

Substiute Parts

HDSP-C1Y1

Broadcom LimitedIn Stock: 1109HDSP-C1Y1 Datasheet

Current PartRFQ

SA10-21YWA

KingbrightIn Stock: 1270SA10-21YWA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the HDSP-C1Y1 must satisfy the following criteria to ensure direct functional compatibility:

• Display type must be 7-segment
• Single character configuration required
• Common anode pin configuration mandatory
• Yellow color specification
• 1.00-inch digit/alpha size
• 10-DIP package format with 1.200" (30.48mm) pitch
• Physical dimensions matching 34.00mm x 24.00mm x 10.50mm envelope
• Forward voltage within acceptable operating range (4.2V–4.3V)
• Test current at 20mA
• HTSUS classification 8541.41.0000

The SA10-21YWA from Kingbright meets all mandatory substitution criteria while maintaining electrical and mechanical compatibility with the original HDSP-C1Y1 specification.

Parameter Comparison

Engineering Selection Recommendations

The SA10-21YWA is a direct functional substitute for the obsolete HDSP-C1Y1. Both components share identical mechanical packaging, pin configuration, and core electrical operating parameters. The SA10-21YWA carries active product status from Kingbright, ensuring ongoing availability and supply chain continuity. Both parts maintain REACH Unaffected and EAR99 ECCN classifications, confirming equivalent regulatory compliance.

The SA10-21YWA exhibits a 0.1V lower forward voltage (4.2V versus 4.3V) and increased brightness output (23mcd versus 6.9mcd), representing performance improvements within the common anode 7-segment yellow display category. The wavelength shift from 587nm to 590nm remains within the yellow spectrum range. Maximum power dissipation increases from 115mW to 150mW, a consideration for thermal design in power-constrained applications.

Frequently Asked Questions (FAQ)

Q: Can the SA10-21YWA replace the HDSP-C1Y1 in existing PCB designs without modification?

A: Yes. Both components use identical 10-DIP package geometry, pin pitch (1.200", 30.48mm), and common anode configuration. No PCB layout changes are required. Electrical operating parameters (4.2V–4.3V forward voltage, 20mA test current) are compatible with standard 7-segment display driver circuits.

Q: What is the significance of the brightness difference (6.9mcd versus 23mcd)?

A: The SA10-21YWA delivers approximately 3.3 times higher luminous intensity. This represents a performance upgrade suitable for applications requiring improved visibility. Existing current-limiting resistor values may require adjustment if the original design operated at the brightness threshold of the HDSP-C1Y1.

Q: Are there compliance or certification differences between these parts?

A: No. Both components carry identical REACH Unaffected status and EAR99 ECCN classification. Both are classified under HTSUS 8541.41.0000. Regulatory compliance is equivalent.

Q: Why is the HDSP-C1Y1 listed as obsolete?

A: Broadcom has discontinued this product line. The SA10-21YWA from Kingbright represents the active equivalent in the 1-inch yellow 7-segment common anode display category, ensuring design continuity and supply availability.

Q: Does the wavelength shift from 587nm to 590nm affect color perception?

A: Both wavelengths fall within the yellow spectrum range. The 3nm shift is imperceptible to human vision and does not constitute a color change. Visual appearance remains yellow in both cases.