LTC-4627Y Equivalent & Substitute Parts

Part Overview

The LTC-4627Y is a 4-character yellow 7-segment LED display module manufactured by Lite-On Inc., configured as a common anode unit in a 16-DIP package. This component is classified as obsolete, making identification of suitable substitutes essential for ongoing design support and production continuity. The module operates at 2.1V forward voltage with a 20mA test current and is designed for applications requiring numeric or alphanumeric clock display functionality.

Substiute Parts

LTC-4627Y

Lite-On Inc.In Stock: 750LTC-4627Y Datasheet

Current PartRFQ

LTC-4627JS

Lite-On Inc.In Stock: 1165LTC-4627JS Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LTC-4627Y is determined by strict alignment of the following critical parameters:

• Character Count: Must be 4 characters
• Display Type: Must be 7-Segment Clock configuration
• Common Pin Configuration: Must be Common Anode
• Color: Must be Yellow
• Digit/Alpha Size: Must be 0.39" (10.00mm)
• Package Type: Must be 16-DIP (0.400", 10.16mm), 14 Leads
• Physical Dimensions: Must match 0.504" H x 1.582" W x 0.276" D (12.80mm x 40.18mm x 7.00mm)
• Electrical Parameters: Forward voltage (Vf), test current, and power dissipation must remain within acceptable operating ranges for the target application

The LTC-4627JS meets all substitution criteria and is classified as the manufacturer-recommended equivalent.

Parameter Comparison

Engineering Selection Recommendations

The LTC-4627JS is the active-status substitute for the obsolete LTC-4627Y. Both components share identical mechanical and functional specifications, including package type, character count, display configuration, and pin arrangement. The LTC-4627JS offers the advantage of active product status, ensuring continued availability and manufacturing support.

The LTC-4627JS carries ROHS3 compliance certification, meeting current environmental and regulatory requirements for new designs and production environments. The forward voltage differential of 0.05V (2.1V vs. 2.05V) and the reduced power dissipation (40mW vs. 60mW) represent minor operational variations that do not affect functional compatibility in standard clock display applications.

The reduced millicandela rating (0.65mcd vs. 2.2mcd) and the slight wavelength shift (588nm vs. 585nm) indicate differences in brightness and color characteristics. These variations must be evaluated against specific application requirements for visibility and color matching in the target system.

Frequently Asked Questions (FAQ)

Q: Can the LTC-4627JS be used as a direct replacement for the LTC-4627Y?

A: Yes. Both components are identical in package type (16-DIP), character count (4), display configuration (7-Segment Clock, Common Anode), color (Yellow), and physical dimensions. The electrical parameter variations (forward voltage, power dissipation, and brightness) are minor and do not prevent functional substitution in standard applications.

Q: What are the key differences between LTC-4627Y and LTC-4627JS?

A: The LTC-4627Y is obsolete, while the LTC-4627JS is active. The LTC-4627JS has a lower forward voltage (2.05V vs. 2.1V), reduced power dissipation (40mW vs. 60mW), lower brightness (0.65mcd vs. 2.2mcd), and carries ROHS3 compliance certification.

Q: Are there any pin compatibility concerns?

A: No. Both components use the 16-DIP (0.400", 10.16mm) package with 14 leads. Pin assignments and functional connections are identical.

Q: Does the brightness difference affect compatibility?

A: The LTC-4627JS has lower brightness (0.65mcd vs. 2.2mcd). Applications requiring high visibility or specific brightness levels must evaluate this parameter against system requirements.

Q: Is the LTC-4627JS suitable for new designs?

A: Yes. The LTC-4627JS is active and carries ROHS3 compliance, making it suitable for new designs and production environments requiring current regulatory compliance.

Q: What is the wavelength difference between these parts?

A: The LTC-4627Y has a peak wavelength of 585nm, while the LTC-4627JS has 588nm. Both are within the yellow spectrum range. Applications with strict color matching requirements should evaluate this 3nm difference.