MSQC6112C Equivalent & Substitute Parts

Part Overview

The MSQC6112C is a 4-character red 7-segment LED display module manufactured by onsemi, featuring a 0.56" digit size with common anode 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 levels.

Substiute Parts

MSQC6112C

onsemiIn Stock: 970MSQC6112C Datasheet

Current PartRFQ

LTC-5723P

Lite-On Inc.In Stock: 774LTC-5723P Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MSQC6112C are identified based on the following critical parameters that determine functional compatibility:

• Number of Characters: Must be 4-character configuration
• Display Type: Must be 7-segment LED display
• Digit Size: Must be 0.56" (14.22mm) to maintain form factor compatibility
• Color: Must be red wavelength (695-697nm range)
• Voltage - Forward (Typ): Must be 2.1V to ensure driver circuit compatibility
• Current - Test: Must be 20mA standard test current
• Power Dissipation (Max): Must not exceed 40mW per character
• Common Pin Configuration: Common anode or common cathode variants are acceptable with appropriate circuit redesign

The LTC-5723P from Lite-On Inc. qualifies as a substitute part. While it features common cathode configuration (versus the original common anode), it maintains electrical compatibility through identical forward voltage, test current, and power dissipation specifications. The digit size, display type, and character count remain unchanged, ensuring mechanical and functional interchangeability with circuit-level modifications.

Parameter Comparison

Engineering Selection Recommendations

The LTC-5723P is the primary substitute for the obsolete MSQC6112C. Selection is justified on the following basis:

Product Status: The LTC-5723P maintains active product status with current manufacturing support, ensuring long-term availability and supply chain stability compared to the obsolete MSQC6112C.

Electrical Compatibility: Both parts operate at identical forward voltage (2.1V) and test current (20mA), with matching maximum power dissipation (40mW). These parameters ensure compatibility with existing driver circuits without modification to current-limiting resistor values.

Optical Specifications: The LTC-5723P provides higher brightness (0.95mcd versus 0.7mcd) within the same red wavelength range (697nm versus 695nm), delivering improved visibility while maintaining color consistency.

Compliance and Certifications: The LTC-5723P is RoHS3 compliant, meeting modern regulatory requirements. Both parts share identical moisture sensitivity levels (MSL 1) and ECCN/HTSUS classifications.

Form Factor Consideration: The LTC-5723P exhibits a slightly increased height (0.748" versus 0.673") and includes a defined 12-DIP package specification. Physical space verification is required during integration.

Circuit-Level Modification: The common cathode configuration of the LTC-5723P requires modification to the display driver circuit logic compared to the common anode MSQC6112C. Segment and digit control signals must be inverted accordingly.

Frequently Asked Questions (FAQ)

Q: Can the LTC-5723P be used as a direct pin-for-pin replacement for the MSQC6112C?

A: No. While both are 4-character 0.56" red 7-segment displays with identical electrical specifications, the LTC-5723P uses common cathode configuration versus the common anode of the MSQC6112C. This requires modification to the display driver circuit logic. Additionally, the LTC-5723P is specified as a 12-DIP package, which may differ in physical pinout from the MSQC6112C.

Q: What is the primary advantage of substituting the LTC-5723P for the MSQC6112C?

A: The LTC-5723P maintains active product status with current manufacturing support, whereas the MSQC6112C is obsolete. The LTC-5723P also provides higher brightness (0.95mcd) and meets RoHS3 compliance requirements.

Q: Are there any brightness differences between these displays?

A: Yes. The LTC-5723P provides 0.95mcd compared to 0.7mcd for the MSQC6112C, representing approximately 36% higher brightness. Both operate within the same red wavelength range (695-697nm).

Q: What modifications are required to use the LTC-5723P in place of the MSQC6112C?

A: The primary modification involves inverting display driver logic to accommodate the common cathode configuration. Segment control signals and digit multiplexing signals must be reversed. Physical space verification is also required due to the slightly increased height of the LTC-5723P.

Q: Are the forward voltage and current specifications identical?

A: Yes. Both parts operate at 2.1V forward voltage (typical) with 20mA test current and 40mW maximum power dissipation. Existing current-limiting resistor calculations remain valid.

Q: What is the moisture sensitivity level for both parts?

A: Both the MSQC6112C and LTC-5723P are classified as MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.