SC36-11YWA 7-Segment LED Display Equivalent & Substitute Parts

Part Overview

The SC36-11YWA is a 0.36-inch single-character yellow 7-segment LED display manufactured by Kingbright, configured as a common cathode device 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 2.1V forward voltage with a 20mA test current and delivers 2.6mcd brightness at a 590nm peak wavelength.

Substiute Parts

SC36-11YWA

KingbrightIn Stock: 762SC36-11YWA Datasheet

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LDS-C323RI

Lumex Opto/Components Inc.In Stock: 916LDS-C323RI Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SC36-11YWA are identified based on strict electrical and mechanical compatibility criteria. The following parameters must match or remain within acceptable operating ranges:

Critical Matching Parameters:

• Display type: 7-Segment
• Character configuration: Single character
• Digit size: 0.36" (9.14mm)
• Color: Yellow
• Common pin type: Common Cathode
• Package: 10-DIP (0.200", 5.08mm)
• Physical dimensions: 0.551" H x 0.295" W x 0.335" D
• Forward voltage: 2.1V
• RoHS compliance: ROHS3 Compliant

Allowable Parameter Variations: Substitute parts may differ in test current, brightness rating (mcd), peak wavelength (within yellow spectrum), and power dissipation, provided these variations do not exceed the electrical design constraints of the target application circuit.

Parameter Comparison

Engineering Selection Recommendations

The LDS-C323RI from Lumex Opto/Components Inc. is a direct functional substitute for the obsolete SC36-11YWA. Both components share identical mechanical and electrical specifications for all critical parameters: display type, character count, digit size, color, common cathode configuration, package type, physical dimensions, and forward voltage.

The LDS-C323RI operates at a lower test current (10mA versus 20mA), resulting in reduced power dissipation and lower brightness output (2.25mcd versus 2.6mcd). The peak wavelength differs slightly within the yellow spectrum (585nm versus 590nm), representing a negligible visual difference. Both parts maintain ROHS3 compliance and unlimited moisture sensitivity rating.

The LDS-C323RI is currently in active production status, ensuring long-term availability and supply chain stability compared to the obsolete SC36-11YWA. Circuit designs must account for the reduced brightness and lower current draw when transitioning to this substitute part.

Frequently Asked Questions (FAQ)

Q: Can the LDS-C323RI be used as a direct pin-for-pin replacement for the SC36-11YWA?

A: Yes. Both parts use identical 10-DIP packaging with the same pinout configuration for common cathode 7-segment displays. No PCB modifications are required for physical substitution.

Q: What is the impact of the lower test current (10mA vs. 20mA) on circuit design?

A: The LDS-C323RI requires half the test current of the SC36-11YWA. Existing current-limiting resistor values in the circuit may need adjustment to optimize brightness and power consumption. The lower current also reduces thermal stress on the display and associated driver circuitry.

Q: Are there visual differences between the two displays due to wavelength variation (590nm vs. 585nm)?

A: Both wavelengths fall within the yellow spectrum. The 5nm difference is imperceptible to the human eye and produces no practical visual distinction in typical applications.

Q: Why does the LDS-C323RI have higher maximum power dissipation (105mW vs. 75mW) despite lower test current?

A: Maximum power dissipation ratings reflect worst-case operating conditions across the full range of forward voltages and currents. The higher rating for the LDS-C323RI provides design margin but does not indicate higher typical power consumption at standard operating points.

Q: Is the LDS-C323RI suitable for applications requiring the original 2.6mcd brightness specification?

A: The LDS-C323RI delivers 2.25mcd at its test current. Applications with strict brightness requirements may require circuit modifications to increase the forward current, or alternative parts with higher brightness ratings should be evaluated.

Q: Are both parts compliant with current regulatory standards?

A: Yes. Both the SC36-11YWA and LDS-C323RI are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic components.