BA56-11YWA 7-Segment LED Display - Equivalent & Substitute Parts

Part Overview

The BA56-11YWA is a 3-character, 7-segment LED display module manufactured by Kingbright. This yellow common anode display operates at 2.1V forward voltage with a 20mA test current and features 0.56-inch digit height in a 28-DIP package. The product is currently active and ROHS3 compliant. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and design alternatives when the primary part becomes unavailable or when application requirements necessitate alternative electrical or optical characteristics.

Substiute Parts

BA56-11YWA

KingbrightIn Stock: 1018BA56-11YWA Datasheet

Current PartRFQ

LDT-A512RI

Lumex Opto/Components Inc.In Stock: 939LDT-A512RI Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the BA56-11YWA is determined by the following critical parameters:

Mandatory Matching Parameters:

• Number of Characters: 3
• Display Type: 7-Segment
• Common Pin Configuration: Common Anode
• Digit/Alpha Size: 0.56" (14.22mm)
• Package / Case: 28-DIP (0.600", 15.24mm)

Allowable Variation Parameters:

• Color: May differ (yellow, green, red, etc.)
• Voltage - Forward (Vf): Acceptable range determined by circuit design tolerance
• Current - Test: Acceptable range determined by circuit design tolerance
• Millicandela Rating: May vary based on optical requirements
• Wavelength - Peak: Varies with color selection
• Power Dissipation: May vary with electrical characteristics
• Manufacturer: Different manufacturers acceptable if all mandatory parameters match

The LDT-A512RI from Lumex Opto/Components Inc. qualifies as a substitute part because it maintains all mandatory matching parameters while offering alternative electrical and optical characteristics suitable for common anode 7-segment display applications.

Parameter Comparison

Engineering Selection Recommendations

Primary Part Selection (BA56-11YWA): Select the BA56-11YWA when yellow color output is required and higher brightness (6.5mcd) is necessary for the application. This part operates at 2.1V forward voltage and 20mA test current. Both parts maintain ROHS3 compliance and MSL Level 1 rating, ensuring equivalent handling and environmental compliance.

Substitute Part Selection (LDT-A512RI): Select the LDT-A512RI when green color output is acceptable and lower operating current (10mA) is advantageous for power-constrained applications. The 0.1V higher forward voltage (2.2V) requires circuit verification to ensure compatibility with existing current-limiting resistor designs. The lower brightness rating (3.9mcd) is suitable for applications where high luminous intensity is not required.

Interchangeability Conditions: Both parts are mechanically and functionally interchangeable at the PCB level due to identical 28-DIP package specifications and common anode configuration. Circuit redesign is not required for package substitution. However, LED current-limiting resistor values may require adjustment to account for the 0.1V forward voltage difference and 10mA versus 20mA test current specifications.

Compliance Equivalence: Both parts are ROHS3 compliant, REACH unaffected, and carry MSL Level 1 rating. No additional compliance documentation is required when substituting between these parts.

Frequently Asked Questions (FAQ)

Q: Can the LDT-A512RI be used as a direct replacement for the BA56-11YWA without circuit modification?

A: The LDT-A512RI is mechanically compatible and will function in the same 28-DIP socket. However, the 0.1V higher forward voltage and different test current specification may require adjustment of current-limiting resistor values to maintain proper display brightness and circuit performance. Circuit verification is necessary before production deployment.

Q: What is the primary difference between these two parts?

A: The primary differences are color (yellow versus green), brightness rating (6.5mcd versus 3.9mcd), forward voltage (2.1V versus 2.2V), and test current (20mA versus 10mA). All other parameters, including package type, character count, display type, and common anode configuration, are identical.

Q: Are both parts suitable for the same PCB layout?

A: Yes. Both parts use the 28-DIP (0.600", 15.24mm) package with identical pin spacing and configuration. No PCB layout changes are required for mechanical substitution.

Q: Which part should be selected for low-power applications?

A: The LDT-A512RI operates at 10mA test current compared to the BA56-11YWA at 20mA, making it suitable for power-constrained designs. However, the lower brightness rating (3.9mcd) must be acceptable for the application's visibility requirements.

Q: Do both parts meet the same regulatory standards?

A: Yes. Both parts are ROHS3 compliant, REACH unaffected, and carry identical MSL Level 1 ratings. No additional compliance considerations apply when selecting between these parts.

Q: What is the impact of the 0.1V forward voltage difference on circuit design?

A: The 0.1V difference (2.1V versus 2.2V) affects the voltage drop across current-limiting resistors. For applications using fixed resistor values, this may result in slightly different LED current. Circuit designers should verify that the resulting current remains within acceptable operating ranges for the selected part.

Q: Can color be changed between yellow and green without affecting other circuit parameters?

A: Color selection is independent of circuit functionality. However, the different wavelengths (590nm yellow versus 565nm green) and brightness ratings (6.5mcd versus 3.9mcd) may affect visual perception and application suitability. Circuit parameters remain unchanged; only the visual output differs.