LAP-301YL Equivalent & Substitute Parts

Part Overview

The LAP-301YL is a yellow 7-segment LED display module manufactured by Rohm Semiconductor, featuring a single character with 0.31" digit height in a 10-DIP package. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and production continuity. The LAP-301YL operates at 1.9V forward voltage with 10mA test current and delivers 450mcd brightness at 590nm wavelength peak.

Substiute Parts

LAP-301YL

Rohm SemiconductorIn Stock: 992LAP-301YL Datasheet

Current PartRFQ

HDSP-U303

Broadcom LimitedIn Stock: 1831HDSP-U303 Datasheet

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HDSP-U313

Broadcom LimitedIn Stock: 944HDSP-U313 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LAP-301YL are qualified based on the following electrical and mechanical compatibility criteria:

• Display type: 7-Segment LED configuration
• Number of characters: Single character
• Digit height: 0.31" (8.00mm)
• Color: Yellow
• Common pin configuration: Common Cathode
• Package type: 10-DIP (0.209", 5.30mm)
• Physical form factor compatibility

The substitute parts HDSP-U303 and HDSP-U313, both manufactured by Broadcom Limited, meet these core substitution parameters. Both are active products with identical display specifications, package configuration, and mechanical dimensions. The electrical parameters differ in forward voltage (2.2V vs. 1.9V) and test current (20mA vs. 10mA), which are within acceptable tolerance ranges for 7-segment display applications and do not prevent functional substitution in standard circuit designs.

Parameter Comparison

Engineering Selection Recommendations

Both HDSP-U303 and HDSP-U313 are qualified substitutes for the obsolete LAP-301YL based on form factor, package compatibility, and functional equivalence. Selection between these two Broadcom alternatives should be based on inventory availability and supply chain considerations, as both parts are electrically and mechanically interchangeable for 10-DIP common cathode 7-segment display applications.

The transition from LAP-301YL to either Broadcom substitute requires circuit design review to accommodate the higher forward voltage (2.2V vs. 1.9V) and increased test current (20mA vs. 10mA). Both substitute parts maintain ROHS3 compliance and unlimited moisture sensitivity rating, ensuring regulatory and environmental compatibility with the original component.

Frequently Asked Questions (FAQ)

Q: Can HDSP-U303 and HDSP-U313 be used interchangeably with LAP-301YL?

A: Both Broadcom parts are mechanically and functionally equivalent substitutes. They share identical 10-DIP package configuration, 0.31" digit height, common cathode connection, and yellow color specification. Circuit design must account for the 0.3V higher forward voltage and 10mA increased test current.

Q: What are the key differences between LAP-301YL and the substitute parts?

A: The primary differences are forward voltage (1.9V vs. 2.2V), test current (10mA vs. 20mA), and brightness rating (450mcd vs. 2.74mcd). The wavelength peak also differs slightly (590nm vs. 583nm). These differences do not prevent functional substitution in standard display applications.

Q: Are HDSP-U303 and HDSP-U313 identical?

A: Both parts share identical electrical specifications, physical dimensions, and package configuration. They are functionally equivalent for substitution purposes.

Q: What is the significance of the LAP-301YL obsolete status?

A: Obsolete status indicates the part is no longer manufactured by Rohm Semiconductor. HDSP-U303 and HDSP-U313 are active products from Broadcom Limited, ensuring long-term availability and supply chain continuity.

Q: Do the substitute parts maintain the same compliance certifications?

A: Both HDSP-U303 and HDSP-U313 are ROHS3 compliant and REACH unaffected, matching the regulatory status of the LAP-301YL.