LDS-A322RI Equivalent & Substitute Parts Reference

Part Overview

The LDS-A322RI is a 7-segment LED display module manufactured by Lumex Opto/Components Inc. It is a single-character green display with common anode configuration, housed in a 10-DIP package. The device operates at 2.2V forward voltage with 10mA test current and delivers 2.5mcd brightness at 565nm peak wavelength. This part maintains Active product status and is RoHS3 compliant.

Substitute parts are identified when equivalent display modules share identical mechanical form factors, package types, and core functional characteristics while maintaining compatibility with standard circuit implementations. Alternative sources ensure design continuity and supply chain flexibility for applications requiring 0.36-inch 7-segment green displays in 10-DIP configuration.

Substiute Parts

LDS-A322RI

Lumex Opto/Components Inc.In Stock: 891LDS-A322RI Datasheet

Current PartRFQ

SA36-11CGKWA

KingbrightIn Stock: 1507SA36-11CGKWA Datasheet

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SA36-11GWA

KingbrightIn Stock: 998SA36-11GWA Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LDS-A322RI are qualified based on strict alignment with the following mandatory parameters:

Mechanical Compatibility:

• Identical package type: 10-DIP (0.200", 5.08mm)
• Identical physical dimensions: 0.551" H × 0.295" W × 0.335" D (14.00mm × 7.50mm × 8.50mm)
• Identical digit size: 0.36 inches (9.14mm)

Functional Compatibility:

• Display type: 7-Segment
• Number of characters: 1
• Common pin configuration: Common Anode
• Color: Green
• Wavelength range: 565nm to 574nm (green spectrum)

Electrical Operating Range:

• Forward voltage (Vf): 2.1V to 2.2V
• Test current: 10mA to 20mA
• Power dissipation: 62.5mW to 105mW

Regulatory & Compliance:

• RoHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• REACH Status: REACH Unaffected
• ECCN: EAR99

The identified substitute parts (SA36-11GWA and SA36-11CGKWA, both from Kingbright) meet all mechanical and functional criteria, enabling direct circuit-level substitution without design modification.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection (LDS-A322RI): The LDS-A322RI remains the specified part for applications designed to its exact electrical parameters. It is Active status, RoHS3 compliant, and carries unlimited moisture sensitivity rating. Use this part when original design specifications require 2.2V forward voltage at 10mA test current with 2.5mcd brightness output.

Substitute Selection (SA36-11GWA): The SA36-11GWA from Kingbright provides electrical and mechanical equivalence with identical 2.2V forward voltage and 565nm wavelength. It operates at 20mA test current with 3.5mcd brightness and 62.5mW maximum power dissipation. This part is suitable for applications where increased test current and slightly higher brightness are acceptable. Active product status, RoHS3 compliant, unlimited MSL.

Substitute Selection (SA36-11CGKWA): The SA36-11CGKWA from Kingbright operates at 2.1V forward voltage with 20mA test current, delivering 11mcd brightness at 574nm wavelength. Power dissipation is 75mW maximum. This part is suitable for applications where lower forward voltage, higher brightness output, and slightly longer wavelength (574nm vs 565nm green spectrum) are compatible with circuit design. Active product status, RoHS3 compliant, unlimited MSL.

All three parts share identical mechanical form factors, package types, and regulatory compliance status, enabling substitution based on electrical performance requirements and brightness specifications.

Frequently Asked Questions (FAQ)

Q: Can SA36-11GWA replace LDS-A322RI in existing designs without circuit modification?

A: Yes. Both parts share identical package type (10-DIP), physical dimensions (0.551" H × 0.295" W × 0.335" D), digit size (0.36"), common anode configuration, and forward voltage (2.2V). The SA36-11GWA operates at 20mA test current versus 10mA for the LDS-A322RI, and delivers 3.5mcd versus 2.5mcd brightness. Circuit designs must accommodate the higher test current specification. Both parts are RoHS3 compliant with unlimited MSL.

Q: What is the difference between SA36-11GWA and SA36-11CGKWA?

A: Both are Kingbright 7-segment green displays in 10-DIP packages with identical mechanical dimensions. The SA36-11GWA operates at 2.2V forward voltage with 565nm peak wavelength and 3.5mcd brightness. The SA36-11CGKWA operates at 2.1V forward voltage with 574nm peak wavelength and 11mcd brightness. The SA36-11CGKWA provides higher brightness output and lower forward voltage but operates at a slightly longer wavelength within the green spectrum.

Q: Are all three parts interchangeable in terms of packaging?

A: Yes. All three parts (LDS-A322RI, SA36-11GWA, SA36-11CGKWA) use identical 10-DIP (0.200", 5.08mm) package type with matching physical dimensions of 0.551" H × 0.295" W × 0.335" D. They are mechanically interchangeable on standard PCB layouts designed for 10-DIP displays. Packaging format differs (Lumex supplied in Bulk; Kingbright supplied in Tube), but component form factor is identical.

Q: What compliance certifications apply to all substitute parts?

A: All three parts are RoHS3 compliant, carry Moisture Sensitivity Level 1 (Unlimited), maintain REACH Unaffected status, and are classified under ECCN EAR99. All parts maintain Active product status. These certifications ensure regulatory compatibility across all three options.

Q: Which substitute part should be selected for maximum brightness?

A: The SA36-11CGKWA delivers 11mcd brightness, compared to 2.5mcd for the LDS-A322RI and 3.5mcd for the SA36-11GWA. Selection of the SA36-11CGKWA requires verification that circuit design accommodates 2.1V forward voltage and 20mA test current, and that the 574nm wavelength (slightly longer than the original 565nm) is acceptable for the application.

Q: What is the impact of test current differences on circuit design?

A: The LDS-A322RI specifies 10mA test current, while both Kingbright substitutes (SA36-11GWA and SA36-11CGKWA) specify 20mA test current. Circuit designs must ensure current-limiting resistors and power supply capacity accommodate the higher current draw. Forward voltage specifications (2.2V for LDS-A322RI and SA36-11GWA; 2.1V for SA36-11CGKWA) must also be verified against circuit design parameters.