MSQC6912C Equivalent & Substitute Parts

Part Overview

The MSQC6912C is a 4-character red 7-segment LED display module manufactured by onsemi, configured as a common anode display with 0.56" digit height. This component is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations. The module operates at 2V forward voltage with 20mA test current and is housed in a 14-DIP package.

Substiute Parts

MSQC6912C

onsemiIn Stock: 844MSQC6912C Datasheet

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LTC-5723P

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

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the MSQC6912C requires matching the following critical parameters:

• Display Configuration: 4-character, 7-segment red LED module
• Digit Height: 0.56" (14.22mm) for form factor compatibility
• Electrical Characteristics: Forward voltage and test current within acceptable operating ranges
• Package Type: DIP package format for PCB mounting compatibility

The LTC-5723P from Lite-On Inc. shares the core display specifications (4-character, 7-segment, red, 0.56" digit height) and operates within compatible electrical parameters. However, this substitute differs in common pin configuration (common cathode vs. common anode) and package pin count (12-DIP vs. 14-DIP), requiring circuit design modifications for direct replacement.

Parameter Comparison

Engineering Selection Recommendations

The LTC-5723P qualifies as a functional substitute based on matching display configuration, digit height, and test current specifications. The substitute maintains active product status with RoHS3 compliance, providing supply chain continuity for the obsolete MSQC6912C.

Design integration requires accommodation of the following differences:

• Common Pin Configuration: Circuit redesign necessary to transition from common anode (MSQC6912C) to common cathode (LTC-5723P) architecture
• Package Pin Count: Pinout modification required due to 14-DIP to 12-DIP transition
• Forward Voltage: 0.1V increase (2V to 2.1V) within typical LED operating tolerance
• Wavelength Shift: Peak wavelength change from 635nm to 697nm results in perceptible color shift toward orange-red

Frequently Asked Questions (FAQ)

Q: Can the LTC-5723P be used as a direct pin-for-pin replacement for the MSQC6912C?

A: No. The LTC-5723P uses a 12-DIP package versus the 14-DIP package of the MSQC6912C, and the common pin configuration differs (common cathode vs. common anode). PCB layout and driver circuit modifications are required.

Q: What is the primary limitation when substituting the LTC-5723P for the MSQC6912C?

A: The common pin configuration difference is the primary limitation. The MSQC6912C operates with a common anode architecture, while the LTC-5723P operates with a common cathode architecture. This requires redesign of the display driver circuit.

Q: Are the physical dimensions compatible between these two parts?

A: The digit height (0.56" / 14.22mm) is identical, ensuring visual consistency. Overall module dimensions differ slightly (height: 0.673" vs. 0.748"), but both fit standard 0.600" DIP spacing on PCBs.

Q: Does the wavelength difference between 635nm and 697nm affect visual appearance?

A: Yes. The 62nm wavelength shift results in a perceptible color change from pure red (635nm) to orange-red (697nm). This may be noticeable in applications requiring color consistency.

Q: What compliance certifications apply to the LTC-5723P substitute?

A: The LTC-5723P carries RoHS3 compliance and maintains EAR99 ECCN classification, consistent with the original MSQC6912C regulatory status.