MSQC6142C Equivalent & Substitute Parts Reference

Part Overview

The MSQC6142C is a 4-character red 7-segment LED display module manufactured by onsemi, featuring a 0.56" digit size with common cathode configuration. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and procurement continuity. The display operates at 2.1V forward voltage with 20mA test current, suitable for numeric and alphanumeric display applications requiring standard LED brightness characteristics.

Substiute Parts

MSQC6142C

onsemiIn Stock: 709MSQC6142C Datasheet

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LTC-5623P

Lite-On Inc.In Stock: 790LTC-5623P Datasheet

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LTC-5753P-01

Lite-On Inc.In Stock: 1169LTC-5753P-01 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the MSQC6142C is determined by the following critical parameters:

• Display Configuration: 4-character, 7-segment, red LED display
• Digit Size: 0.56" (14.22mm) character height
• Common Pin Type: Common cathode configuration (primary requirement for direct substitution)
• Electrical Specifications: 2.1V forward voltage, 20mA test current, 40mW maximum power dissipation
• Color and Wavelength: Red color with peak wavelength in the 695-697nm range
• Brightness: Millicandela rating in the 0.7-0.95mcd range

The substitute parts identified maintain compatibility across these core parameters. The LTC-5753P-01 provides direct electrical and functional equivalence with common cathode configuration. The LTC-5623P offers similar electrical performance but with common anode configuration, requiring circuit redesign for pin-level compatibility.

Parameter Comparison

Engineering Selection Recommendations

LTC-5753P-01 is the primary substitute for MSQC6142C applications. This part maintains identical common cathode pin configuration, matching electrical specifications (2.1V, 20mA, 40mW), and equivalent brightness characteristics (0.95mcd vs. 0.7mcd). The LTC-5753P-01 is currently in active production status with ROHS3 compliance certification, providing long-term supply assurance and regulatory alignment. Physical height increases from 0.673" to 0.748", requiring mechanical layout verification for space-constrained applications.

LTC-5623P is a secondary substitute suitable only for designs where common anode configuration can be accommodated through circuit modification. This part shares identical electrical performance and brightness specifications but requires signal inversion and pin reassignment in the display driver circuit. Common anode configuration is not a direct replacement without redesign.

Both substitute parts are manufactured by Lite-On Inc., an established supplier in the LED display component market, with active product status ensuring procurement availability and technical support continuity.

Frequently Asked Questions (FAQ)

Q: Can LTC-5753P-01 be used as a direct pin-for-pin replacement for MSQC6142C?

A: The LTC-5753P-01 maintains common cathode configuration matching the MSQC6142C. Both parts operate at 2.1V forward voltage with 20mA test current. Physical dimensions differ slightly in height (0.748" vs. 0.673"), requiring mechanical layout verification. Electrical compatibility is confirmed across all specified parameters.

Q: What is the key difference between LTC-5753P-01 and LTC-5623P?

A: The primary difference is pin configuration. LTC-5753P-01 uses common cathode (matching MSQC6142C), while LTC-5623P uses common anode. This requires different driver circuit logic and pin connections. Both share identical electrical specifications (2.1V, 20mA, 40mW) and brightness ratings (0.95mcd).

Q: Are there package compatibility considerations?

A: The MSQC6142C package type is not specified in available documentation. Both Lite-On substitutes use 12-DIP (0.600", 15.24mm) package configuration. PCB footprint and socket compatibility must be verified against the original design specifications.

Q: What is the brightness difference between MSQC6142C and the substitute parts?

A: MSQC6142C is rated at 0.7mcd, while both LTC-5753P-01 and LTC-5623P are rated at 0.95mcd. This represents a 35.7% increase in brightness. Display intensity may require adjustment through current limiting resistor modification if exact brightness matching is required.

Q: Do the substitute parts have regulatory compliance certifications?

A: LTC-5753P-01 is ROHS3 compliant. Both substitute parts have MSL rating of 1 (Unlimited), matching the MSQC6142C specification. Compliance documentation should be obtained from the manufacturer for specific application requirements.

Q: What is the wavelength difference between parts?

A: MSQC6142C has a peak wavelength of 695nm, while both Lite-On substitutes are specified at 697nm. This 2nm difference is within standard red LED color tolerance and produces visually equivalent red color output.