SC23-11SRWA Equivalent & Substitute Parts

Part Overview

The SC23-11SRWA is a single-character red 7-segment LED display manufactured by Kingbright, featuring a 2.24-inch digit height in a 10-DIP package configuration. This display module is designed for numeric and alphanumeric applications requiring common cathode operation. The part is currently classified as obsolete, necessitating identification of equivalent and substitute components for ongoing design requirements and production continuity.

Substiute Parts

SC23-11SRWA

KingbrightIn Stock: 771SC23-11SRWA Datasheet

Current PartRFQ

SC23-11SURKWA

KingbrightIn Stock: 1063SC23-11SURKWA Datasheet

MFR RecommendedRFQ

LDS-CD16RI

Lumex Opto/Components Inc.In Stock: 1206LDS-CD16RI Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SC23-11SRWA are identified based on strict electrical and mechanical compatibility criteria. The primary substitution parameters are:

Mechanical Compatibility:

• Single-character 7-segment display format
• 2.24-inch digit height
• 10-DIP package configuration
• Physical dimensions within acceptable tolerance ranges

Electrical Compatibility:

• Common cathode pin configuration
• Red LED color (660nm wavelength preferred)
• Forward voltage and current ratings suitable for standard logic-level driver circuits
• Power dissipation within typical application limits

Regulatory Compliance:

• ROHS3 compliance
• REACH unaffected status
• EAR99 classification

Substitute parts must maintain compatibility across all three categories to ensure direct replacement capability in existing circuit designs and PCB layouts.

Parameter Comparison

Engineering Selection Recommendations

SC23-11SURKWA (Kingbright - MFR Recommended Substitute)

The SC23-11SURKWA is the manufacturer-recommended substitute for the obsolete SC23-11SRWA. Both components share the same base product number (SC23-11) and are manufactured by Kingbright. The SC23-11SURKWA maintains active product status and full ROHS3 compliance. This part offers dual voltage operation (3.7V and 7.4V), providing design flexibility for applications requiring lower power consumption. The reduced test current (10mA versus 20mA) and lower maximum power dissipation (75mW versus 300mW) result in decreased thermal load and improved energy efficiency. The SC23-11SURKWA is currently in stock with 1048 units available.

LDS-CD16RI (Lumex Opto/Components Inc. - Similar Alternative)

The LDS-CD16RI from Lumex Opto/Components Inc. provides an alternative substitute option with active product status and ROHS3 compliance. This part maintains identical mechanical compatibility with the original SC23-11SRWA, including matching physical dimensions and 10-DIP package configuration. The forward voltage of 6.8V aligns closely with the original 7.4V specification, and the 10mA test current matches the SC23-11SURKWA. The LDS-CD16RI is currently in stock with 1146 units available. The lower millicandela rating (22.5mcd) compared to the original part should be evaluated against specific brightness requirements in the target application.

Frequently Asked Questions (FAQ)

Q: Can the SC23-11SURKWA be used as a direct replacement for the SC23-11SRWA in existing designs?

A: Yes. The SC23-11SURKWA maintains mechanical compatibility through identical digit height (2.24"), common cathode configuration, and 10-DIP package pinout. The dual voltage capability (3.7V and 7.4V) ensures compatibility with existing 7.4V supply circuits. Circuit validation is required to confirm brightness performance, as the SC23-11SURKWA operates at reduced test current (10mA versus 20mA).

Q: What are the key differences between the SC23-11SURKWA and LDS-CD16RI?

A: Both parts maintain mechanical compatibility and common cathode operation. The SC23-11SURKWA is the manufacturer-recommended Kingbright substitute with higher brightness (440mcd) and dual voltage operation. The LDS-CD16RI is a Lumex alternative with lower brightness (22.5mcd) and single forward voltage (6.8V). Selection depends on brightness requirements and manufacturer preference.

Q: Are there any physical dimension differences that affect PCB layout?

A: The SC23-11SURKWA has a depth of 0.482" (12.25mm) compared to 0.472" (12.00mm) for both the original SC23-11SRWA and the LDS-CD16RI. This 0.25mm difference is within standard PCB tolerance ranges and does not require layout modification. The horizontal and vertical dimensions remain identical across all three parts.

Q: How do the electrical specifications affect circuit design?

A: The SC23-11SURKWA operates at reduced current (10mA test versus 20mA original) and lower power dissipation (75mW maximum versus 300mW original). Existing current-limiting resistor values must be recalculated based on the new forward voltage and current specifications to maintain proper brightness and component reliability. The LDS-CD16RI requires similar recalculation with its 6.8V forward voltage specification.

Q: Are all substitute parts compliant with current regulatory requirements?

A: Yes. Both the SC23-11SURKWA and LDS-CD16RI are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards. Both parts carry EAR99 classification matching the original component.

Q: What is the wavelength difference between the substitute parts?

A: The SC23-11SURKWA operates at 645nm (amber-red spectrum), while both the original SC23-11SRWA and LDS-CD16RI operate at 660nm (pure red spectrum). This 15nm difference may result in slight color perception variation under identical lighting conditions. Application-specific color matching requirements should be evaluated during design validation.