LAP-301YB Equivalent & Substitute Parts

Part Overview

The LAP-301YB is a 7-segment LED display module manufactured by Rohm Semiconductor, featuring a single yellow character with 0.31" digit height in a 10-DIP package configuration. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing production and maintenance applications. The display operates as a common anode configuration suitable for numeric and alphanumeric display applications.

Substiute Parts

LAP-301YB

Rohm SemiconductorIn Stock: 900LAP-301YB Datasheet

Current PartRFQ

HDSP-U301

Broadcom LimitedIn Stock: 1004HDSP-U301 Datasheet

SimilarRFQ

HDSP-U311

Broadcom LimitedIn Stock: 4558HDSP-U311 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LAP-301YB are qualified based on the following criteria:

• Display Configuration: Single character, 7-segment, yellow LED
• Common Pin Type: Common anode architecture
• Digit Height: 0.31" (8.00mm) nominal size
• Package Format: 10-DIP (0.209", 5.30mm) pin spacing
• Regulatory Compliance: ROHS3 compliant, REACH unaffected status
• Moisture Sensitivity: MSL 1 rating

The HDSP-U301 and HDSP-U311 from Broadcom Limited meet these core substitution criteria. Both parts maintain identical display type, common anode configuration, digit height, and 10-DIP package specifications. Physical dimensions remain within acceptable tolerance (11.00mm x 7.10mm x 5.00mm versus 11.00mm x 7.00mm x 5.00mm). Both substitute parts carry active product status and full regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

Both HDSP-U301 and HDSP-U311 qualify as direct substitutes for the LAP-301YB based on functional equivalence and regulatory compliance. The primary distinction between the two Broadcom alternatives is packaging format: HDSP-U301 is supplied in bulk packaging, while HDSP-U311 is supplied in tube packaging.

Selection between HDSP-U301 and HDSP-U311 should be based on procurement and assembly requirements. Both parts maintain active product status with established supply chains, ensuring long-term availability compared to the obsolete LAP-301YB. ROHS3 compliance and MSL 1 moisture sensitivity ratings are consistent across all three parts, supporting equivalent environmental and regulatory performance.

Frequently Asked Questions (FAQ)

Q: Can HDSP-U301 and HDSP-U311 be used interchangeably with LAP-301YB?

A: Yes. Both Broadcom parts maintain identical display type, common anode configuration, digit height (0.31"), and 10-DIP package specifications. Physical dimensions are within acceptable tolerance for PCB mounting and connector compatibility.

Q: What is the difference between HDSP-U301 and HDSP-U311?

A: The functional specifications are identical. The difference is packaging format: HDSP-U301 is supplied in bulk packaging, while HDSP-U311 is supplied in tube packaging. Selection depends on assembly line requirements and inventory management practices.

Q: Are there electrical parameter differences I should account for?

A: The substitute parts operate at 2.2V forward voltage and 20mA test current, compared to the LAP-301YB at 1.9V and 10mA. Circuit designs must accommodate these electrical specifications. The substitute parts also feature lower power dissipation (80mW maximum versus 448mW) and different luminous intensity ratings (2.74mcd versus 450mcd).

Q: Are all three parts RoHS compliant?

A: Yes. LAP-301YB, HDSP-U301, and HDSP-U311 are all ROHS3 compliant with MSL 1 moisture sensitivity ratings and REACH unaffected status.

Q: Why is LAP-301YB classified as obsolete?

A: Rohm Semiconductor has discontinued this product line. HDSP-U301 and HDSP-U311 from Broadcom Limited are active products with ongoing manufacturing and supply availability.