MAN443C Green 7-Segment LED Display - Equivalent & Substitute Parts

Part Overview

The MAN443C is a single-character green 7-segment LED display manufactured by onsemi, featuring a 0.39" digit height in a 10-DIP package configuration. 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 delivers 2mcd brightness in the 570nm wavelength range.

Key Parameters

Parameter	MAN443C Value
Display Type	7-Segment
Number of Characters	1
Common Pin Configuration	Common Cathode
Color	Green
Digit/Alpha Size	0.39" (10.00mm)
Package / Case	10-DIP (0.300", 7.62mm)
Voltage - Forward (Vf) (Typ)	2.1V
Current - Test	20mA
Millicandela Rating	2mcd
Wavelength - Peak	570nm
Power Dissipation (Max)	70mW
Package Type	10-DIP (0.300", 7.62mm)

Substitute Part Grouping Explanation

Substitution eligibility for the MAN443C is determined by the following critical parameters:

Display Configuration: Single-character 7-segment display with common cathode connection
Physical Package: 10-DIP (0.300", 7.62mm) form factor for direct PCB compatibility
Electrical Compatibility: Forward voltage range 2.1V to 2.25V; test current 10mA to 20mA
Optical Characteristics: Green color; wavelength 563nm to 574nm; brightness 2mcd to 21mcd
Mechanical Fit: Digit height 0.39" to 0.40"; overall dimensions within 0.512" H x 0.378-0.394" W x 0.276" D

All substitute parts listed maintain identical package pinout and common cathode topology, ensuring direct functional replacement without circuit redesign.

Parameter Comparison

Parameter	MAN443C (onsemi)	HDSP-303G (Broadcom)	LA-401MN (Rohm)	SC39-11CGKWA (Kingbright)	SC39-11GWA (Kingbright)
Display Type	7-Segment	7-Segment	7-Segment	7-Segment	7-Segment
Number of Characters	1	1	1	1	1
Common Pin	Common Cathode	Common Cathode	Common Cathode	Common Cathode	Common Cathode
Color	Green	Green	Green	Green	Green
Digit/Alpha Size	0.39" (10.00mm)	0.40" (10.16mm)	0.40" (10.16mm)	0.39" (10.00mm)	0.39" (10.00mm)
Package / Case	10-DIP (0.300", 7.62mm)	10-DIP (0.300", 7.62mm)	10-DIP (0.300", 7.62mm)	10-DIP (0.300", 7.62mm)	10-DIP (0.300", 7.62mm)
Voltage - Forward (Vf) (Typ)	2.1V	2.25V	2.1V	2.1V	2.2V
Current - Test	20mA	20mA	10mA	20mA	20mA
Millicandela Rating	2mcd	2.8mcd	16mcd	21mcd	6.4mcd
Wavelength - Peak	570nm	568nm	563nm	574nm	565nm
Power Dissipation (Max)	70mW	105mW	60mW	75mW	62.5mW
Product Status	Obsolete	Active	Active	Active	Active
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

Primary Substitutes (Highest Compatibility)

LA-401MN (Rohm Semiconductor) and SC39-11CGKWA (Kingbright) provide the closest electrical and mechanical match to the MAN443C. Both maintain 2.1V forward voltage, 0.39" digit height, and 10-DIP package configuration. LA-401MN operates at reduced test current (10mA versus 20mA), resulting in lower power dissipation (60mW). SC39-11CGKWA matches the original 20mA test current specification. Both parts are ROHS3 compliant and carry active product status.

Secondary Substitute (Acceptable with Design Verification)

HDSP-303G (Broadcom Limited) operates at 2.25V forward voltage with 0.40" digit height, representing minor electrical and dimensional variance. This part delivers higher brightness (2.8mcd) and power dissipation (105mW). ROHS3 compliance and active status support long-term availability.

Alternative Substitute (Brightness Consideration)

SC39-11GWA (Kingbright) operates at 2.2V forward voltage with reduced brightness (6.4mcd) compared to the original specification. This part is suitable for applications where lower luminous intensity is acceptable. ROHS3 compliance and active status ensure supply continuity.

All substitute parts maintain identical 10-DIP pinout and common cathode topology, eliminating circuit redesign requirements.

Frequently Asked Questions (FAQ)

Q: Can LA-401MN replace MAN443C in existing designs without modification?

A: Yes. LA-401MN maintains identical 10-DIP pinout, common cathode configuration, 2.1V forward voltage, and 0.39" digit height. The reduced test current (10mA versus 20mA) and lower power dissipation (60mW versus 70mW) are compatible with standard LED driver circuits. No circuit modification is required.

Q: What is the primary difference between SC39-11CGKWA and SC39-11GWA?

A: Both parts share identical mechanical and package specifications. SC39-11CGKWA operates at 2.1V with 21mcd brightness; SC39-11GWA operates at 2.2V with 6.4mcd brightness. Selection depends on required luminous intensity for the application.

Q: Is HDSP-303G suitable for space-constrained applications?

A: HDSP-303G maintains the 10-DIP (0.300", 7.62mm) package footprint. The 0.40" digit height represents a 0.01" increase over the MAN443C. Verify mechanical clearance in the specific PCB layout before selection.

Q: Are all substitute parts RoHS compliant?

A: Yes. LA-401MN, SC39-11CGKWA, and SC39-11GWA carry ROHS3 compliance certification. HDSP-303G is ROHS3 compliant. All parts meet current environmental regulatory requirements.

Q: Which substitute offers the highest brightness?

A: SC39-11CGKWA delivers 21mcd brightness at 2.1V forward voltage and 20mA test current, representing the highest luminous intensity among all listed substitutes.

Q: Can forward voltage differences affect circuit performance?

A: Forward voltage variations (2.1V to 2.25V) fall within standard LED driver tolerance ranges. Verify that the current-limiting resistor value accommodates the specified forward voltage of the selected substitute part. Recalculation may be necessary for designs with tight voltage margins.

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