LBP-602YA2 Equivalent & Substitute Parts

Part Overview

The LBP-602YA2 is a 2-character, 0.56-inch yellow 7-segment LED display module manufactured by Rohm Semiconductor in an 18-DIP package configuration. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The display operates at 1.9V forward voltage with 10mA test current and delivers 450mcd brightness at 590nm wavelength peak.

Substiute Parts

LBP-602YA2

Rohm SemiconductorIn Stock: 1124LBP-602YA2 Datasheet

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XDMYK14A2

SunLEDIn Stock: 1137XDMYK14A2 Datasheet

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DA56-11YWA

KingbrightIn Stock: 974DA56-11YWA Datasheet

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DA56-51YWA

KingbrightIn Stock: 1013DA56-51YWA Datasheet

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HDSP-521Y

Broadcom LimitedIn Stock: 769HDSP-521Y Datasheet

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HDSP-5721

Broadcom LimitedIn Stock: 1458HDSP-5721 Datasheet

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LDD-A513RI

Lumex Opto/Components Inc.In Stock: 1910LDD-A513RI Datasheet

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LDD-A5643RI

Lumex Opto/Components Inc.In Stock: 865LDD-A5643RI Datasheet

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LTD-5721AJS

Lite-On Inc.In Stock: 853LTD-5721AJS Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LBP-602YA2 is determined by the following critical parameters:

Primary Compatibility Criteria:

• 2-character display configuration
• 7-segment display type
• Common anode pin configuration
• Yellow color (590nm wavelength band)
• 18-DIP package footprint (0.600", 15.24mm)
• ROHS3 compliance and REACH unaffected status

Secondary Electrical Parameters:

• Forward voltage (Vf) within acceptable operating range
• Test current rating compatible with circuit design
• Millicandela rating suitable for application brightness requirements
• Power dissipation within thermal design limits

Substitute parts are grouped into two categories based on package configuration and electrical characteristics:

Category A - Direct 18-DIP Package Substitutes: Parts maintaining identical 18-DIP package footprint with compatible electrical parameters (DA56-11YWA, DA56-51YWA, HDSP-521Y, HDSP-5721, LDD-A513RI, LDD-A5643RI, LTD-5721AJS).

Category B - Alternative Package Configuration: Parts with different DIP pin count but compatible display specifications (XDMYK14A2 in 10-DIP configuration).

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts maintain ROHS3 compliance and REACH unaffected status, meeting regulatory requirements equivalent to the LBP-602YA2.

For Direct PCB Footprint Compatibility (18-DIP Package): DA56-11YWA, DA56-51YWA, HDSP-521Y, HDSP-5721, LDD-A513RI, LDD-A5643RI, and LTD-5721AJS are electrically and mechanically compatible with existing 18-DIP socket designs. These parts are all active products with current manufacturing support.

For Circuit Redesign Flexibility: XDMYK14A2 offers an alternative 10-DIP package configuration with active product status. This option requires PCB layout modification but maintains electrical compatibility within the specified parameter ranges.

Forward Voltage Considerations: The LBP-602YA2 operates at 1.9V typical forward voltage. Most active substitutes operate at 2.05V to 2.1V, requiring circuit current-limiting resistor adjustment. LDD-A513RI and LDD-A5643RI maintain 10mA test current matching the original specification, while other active 18-DIP options operate at 20mA test current.

Brightness Level Variations: The original LBP-602YA2 delivers 450mcd brightness. Active substitutes range from 0.7mcd to 40mcd, representing significant brightness reduction. Application brightness requirements must be evaluated against substitute part specifications.

Frequently Asked Questions (FAQ)

Q: Can XDMYK14A2 replace LBP-602YA2 without PCB modification? A: No. XDMYK14A2 uses a 10-DIP package while LBP-602YA2 uses 18-DIP. Direct socket substitution is not possible. PCB redesign is required for this alternative.

Q: What is the primary difference between 18-DIP substitute options? A: All 18-DIP substitutes maintain identical package footprint and common anode configuration. Differences exist in forward voltage (1.9V to 2.1V), test current (10mA or 20mA), and brightness output (0.7mcd to 450mcd). Circuit design must accommodate these electrical variations.

Q: Do all substitute parts meet the same compliance standards as LBP-602YA2? A: Yes. All listed substitutes are ROHS3 compliant and REACH unaffected, matching the regulatory status of the original part.

Q: Which substitute maintains the closest electrical match to LBP-602YA2? A: LDD-A513RI and LDD-A5643RI both operate at 2.1V forward voltage with 10mA test current, matching the original 10mA specification. Both maintain 18-DIP package compatibility and active product status.

Q: How does wavelength variation affect display appearance? A: All substitutes emit yellow light in the 583nm to 590nm wavelength range. Wavelength differences within this band produce visually similar yellow color output. The LBP-602YA2 operates at 590nm peak wavelength, while substitutes range from 583nm to 590nm.

Q: Are there brightness concerns when substituting the LBP-602YA2? A: Yes. The original LBP-602YA2 delivers 450mcd brightness. Active 18-DIP substitutes deliver significantly lower brightness (0.7mcd to 8.1mcd). Application visibility requirements must be re-evaluated for substitute parts.

Q: Can I use a 20mA substitute in a circuit designed for 10mA operation? A: No. Using a 20mA part in a 10mA circuit design will result in reduced brightness and potential component damage. Circuit current-limiting resistors must be recalculated for the substitute part's rated current.