MSQC4411C Equivalent & Substitute Parts

Part Overview

The MSQC4411C is a 4-character 7-segment LED display module manufactured by onsemi, featuring a green common anode configuration with 0.39" digit size. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The display operates at 2.1V forward voltage with 20mA test current and is housed in a 16-DIP package measuring 0.508" H × 1.582" W × 0.276" D.

Key Parameters

Parameter	Value
Number of Characters	4
Display Type	7-Segment Clock
Common Pin Configuration	Common Anode
Color	Green
Digit/Alpha Size	0.39" (10.00mm)
Voltage - Forward (Vf) Typical	2.1V
Current - Test	20mA
Package / Case	16-DIP (0.400", 10.16mm)
Millicandela Rating	2mcd
Wavelength - Peak	570nm
Power Dissipation (Max)	75mW
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility for the MSQC4411C is determined by strict alignment with the following critical parameters:

Number of Characters: Must be 4
Display Type: Must be 7-Segment Clock
Common Pin Configuration: Must be Common Anode
Digit/Alpha Size: Must be 0.39" (10.00mm)
Package / Case: Must be 16-DIP (0.400", 10.16mm)
Voltage - Forward (Vf) Typical: Must be within 2.0V to 2.1V range
Current - Test: Must be 20mA
Color: Green (primary substitute) or alternative colors with equivalent electrical characteristics

The LTC-4625G qualifies as a direct equivalent substitute, maintaining identical electrical specifications and physical dimensions. The LTC-4627JR and LTC-4627JS are listed as cross-references but represent color variants (red and yellow respectively) with different optical and electrical characteristics, suitable only for applications where color substitution is acceptable.

Parameter Comparison

Parameter	MSQC4411C (onsemi)	LTC-4625G (Lite-On)	LTC-4627JR (Lite-On)	LTC-4627JS (Lite-On)
Number of Characters	4	4	4	4
Display Type	7-Segment Clock	7-Segment Clock	7-Segment Clock	7-Segment Clock
Common Pin Configuration	Common Anode	Common Anode	Common Anode	Common Anode
Color	Green	Green	Red	Yellow
Digit/Alpha Size	0.39" (10.00mm)	0.39" (10.00mm)	0.39" (10.00mm)	0.39" (10.00mm)
Voltage - Forward (Vf) Typical	2.1V	2.1V	2.0V	2.05V
Current - Test	20mA	20mA	20mA	20mA
Millicandela Rating	2mcd	2.2mcd	0.65mcd	0.65mcd
Wavelength - Peak	570nm	565nm	639nm	588nm
Power Dissipation (Max)	75mW	75mW	70mW	40mW
Package / Case	16-DIP (0.400", 10.16mm)	16-DIP (0.400", 10.16mm)	16-DIP (0.400", 10.16mm)	16-DIP (0.400", 10.16mm)
Product Status	Obsolete	Active	Active	Active
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)

Engineering Selection Recommendations

LTC-4625G (Lite-On Inc.) is the primary equivalent substitute for MSQC4411C. This part maintains identical electrical specifications, physical dimensions, and green color output. The LTC-4625G is currently in active production status with ROHS3 compliance, addressing the obsolescence of the original component while preserving full functional compatibility in 16-DIP common anode 7-segment clock display applications.

LTC-4627JR and LTC-4627JS are alternative cross-references suitable only when color substitution is acceptable. LTC-4627JR (red) and LTC-4627JS (yellow) maintain the same package, pin configuration, and character count but differ in forward voltage, luminous intensity, and wavelength. These parts are appropriate for applications where display color is not a critical design parameter and where the lower millicandela ratings (0.65mcd versus 2mcd) are acceptable.

All substitute parts share MSL 1 (Unlimited) moisture sensitivity classification, matching the original component's environmental handling requirements.

Frequently Asked Questions (FAQ)

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

A: Yes. The LTC-4625G maintains identical electrical specifications (2.1V forward voltage, 20mA test current), physical dimensions (0.39" digit size, 16-DIP package), and green color output. Both are common anode 4-character 7-segment clock displays with matching power dissipation ratings.

Q: What is the difference between LTC-4625G and the LTC-4627 series?

A: LTC-4625G is a green display matching the original MSQC4411C color. LTC-4627JR is red and LTC-4627JS is yellow. The color variants have different forward voltages (2.0V and 2.05V respectively) and significantly lower millicandela ratings (0.65mcd versus 2.2mcd for green), making them unsuitable for applications requiring green output or higher brightness.

Q: Are all substitute parts available in the same packaging?

A: Yes. MSQC4411C, LTC-4625G, LTC-4627JR, and LTC-4627JS are all housed in 16-DIP (0.400", 10.16mm) packages with identical physical dimensions and pin configurations, ensuring direct PCB compatibility.

Q: What is the product status difference between the main part and substitutes?

A: MSQC4411C is classified as obsolete. LTC-4625G, LTC-4627JR, and LTC-4627JS are all in active production, ensuring long-term availability and supply chain continuity for new designs and production runs.

Q: Do the substitute parts meet RoHS compliance?

A: LTC-4625G, LTC-4627JR, and LTC-4627JS are all ROHS3 compliant. The original MSQC4411C RoHS status is not specified in available documentation.

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