LTC-4625G Equivalent & Substitute Parts

Part Overview

The LTC-4625G is a 4-character green 7-segment LED display module manufactured by Lite-On Inc., designed for clock and numeric display applications. This component features a common anode configuration with 0.39" character size and operates at 2.1V forward voltage with 20mA test current. The part is currently in active production status. Identifying equivalent and substitute parts is necessary when the primary part becomes unavailable, when design flexibility is required for supply chain optimization, or when alternative manufacturers' components meet identical electrical and mechanical specifications.

Substiute Parts

LTC-4625G

Lite-On Inc.In Stock: 768LTC-4625G Datasheet

Current PartRFQ

MSQC4411C

onsemiIn Stock: 890MSQC4411C Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LTC-4625G is determined by strict equivalence across the following critical parameters:

• Display Configuration: 4-character, 7-segment, common anode architecture
• Electrical Specifications: 2.1V forward voltage, 20mA test current, 75mW maximum power dissipation
• Optical Characteristics: Green color, wavelength in the 565-570nm range, millicandela rating of 2.0-2.2mcd
• Physical Form Factor: 0.39" character size, 16-DIP package with 0.400" (10.16mm) pin spacing
• Mechanical Envelope: Height 0.504-0.508", width 1.582", depth 0.276"
• Compliance Requirements: RoHS3 compliance, MSL Level 1

The MSQC4411C from onsemi meets all these criteria and qualifies as a direct substitute, despite its obsolete product status.

Parameter Comparison

Engineering Selection Recommendations

LTC-4625G (Primary Selection): This part is recommended for new designs and ongoing production due to its active product status and confirmed ROHS3 compliance. Availability is supported with 738 pieces in current inventory.

MSQC4411C (Substitute Selection): This part qualifies as an electrical and mechanical equivalent with identical voltage, current, power dissipation, package, and pin configuration. However, the MSQC4411C carries an obsolete product status designation, which indicates limited future availability. The millicandela rating is 2.0mcd versus 2.2mcd for the primary part, and the peak wavelength differs by 5nm (570nm versus 565nm). These optical variations remain within acceptable tolerance for general clock and numeric display applications. The MSQC4411C is suitable only for replacement or repair scenarios where the LTC-4625G is unavailable. RoHS compliance status for the MSQC4411C is not specified in available documentation.

Frequently Asked Questions (FAQ)

Q: Can the MSQC4411C be used as a direct replacement for the LTC-4625G in new designs?

A: The MSQC4411C meets all critical electrical and mechanical specifications for substitution. However, its obsolete product status means future availability cannot be guaranteed. For new designs, the LTC-4625G is the appropriate choice due to active production status.

Q: What is the significance of the 2mcd versus 2.2mcd millicandela difference?

A: Both ratings fall within the standard brightness range for 7-segment clock displays. The 0.2mcd difference represents a 9% variation in luminous intensity and is not significant for typical clock and numeric display applications where ambient lighting conditions are controlled.

Q: Does the 5nm wavelength difference (565nm versus 570nm) affect visual appearance?

A: Both wavelengths fall within the green spectrum and produce visually equivalent green color perception to the human eye. The 5nm difference is within the tolerance range for green LED displays and does not result in perceptible color shift.

Q: Are the physical dimension variations (0.504" versus 0.508" height) significant?

A: The 0.004" (0.10mm) height difference is negligible for PCB mounting and does not affect mechanical compatibility with standard 16-DIP sockets or through-hole layouts.

Q: What compliance certifications apply to each part?

A: The LTC-4625G is confirmed ROHS3 compliant. The MSQC4411C carries REACH Unaffected status but RoHS compliance is not specified in available documentation. Both parts carry MSL Level 1 (Unlimited) moisture sensitivity rating.

Q: Can these parts be used interchangeably in existing circuit designs?

A: Yes. Both parts share identical pin configuration (16-DIP), voltage requirements (2.1V), current specifications (20mA), and power dissipation limits (75mW). No circuit modifications are required for substitution.