MAN493C 7-Segment LED Display - Equivalent & Substitute Parts

Part Overview

The MAN493C is a single-character red 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 production continuity. The display operates at 2V forward voltage with 20mA test current and delivers 2.2mcd brightness output at 635nm wavelength. Substitutes must maintain common cathode configuration, identical package footprint, and compatible electrical characteristics to ensure direct circuit board replacement.

Substiute Parts

MAN493C

onsemiIn Stock: 2326MAN493C Datasheet

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HDSP-303A

Broadcom LimitedIn Stock: 749HDSP-303A Datasheet

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HDSP-303E

Broadcom LimitedIn Stock: 3317HDSP-303E Datasheet

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LSHD-7503

Lite-On Inc.In Stock: 11632LSHD-7503 Datasheet

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SC39-11EWA

KingbrightIn Stock: 1164SC39-11EWA Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MAN493C is determined by the following critical parameters:

Primary Compatibility Criteria:

• Common cathode configuration (mandatory for circuit compatibility)
• 10-DIP package with 0.300" (7.62mm) pitch (mandatory for PCB footprint compatibility)
• Red LED color (mandatory for optical consistency)
• Single character display (mandatory for functional equivalence)

Secondary Electrical Compatibility Criteria:

• Forward voltage (Vf) within acceptable operating range: 1.8V to 2.1V
• Test current: 20mA (standard for this display category)
• Wavelength range: 627nm to 660nm (red spectrum compatibility)

Tertiary Considerations:

• Product status (active status preferred for long-term availability)
• RoHS and REACH compliance certifications
• Moisture sensitivity level (MSL 1 for both main and substitute parts)

The four substitute parts listed below meet all primary compatibility criteria and fall within acceptable secondary electrical parameters for direct substitution.

Parameter Comparison

Engineering Selection Recommendations

SC39-11EWA (Kingbright) - Closest Electrical Match

This substitute provides the most direct replacement for the MAN493C. It matches the 0.39" digit height, 10-DIP (0.300", 7.62mm) package, and 2V forward voltage specification. The SC39-11EWA delivers 4.1mcd brightness at 627nm wavelength, exceeding the original 2.2mcd output while remaining within the red spectrum. Power dissipation of 75mW is marginally higher than the 70mW maximum of the MAN493C but remains within acceptable limits for standard circuit designs. ROHS3 compliance and active product status ensure long-term availability and regulatory compliance.

HDSP-303E (Broadcom Limited) - Electrical Compatibility with Higher Power Dissipation

The HDSP-303E maintains the 10-DIP (0.300", 7.62mm) package and common cathode configuration. Forward voltage of 1.9V is within acceptable operating range. The 0.40" digit height represents a minor dimensional increase from the 0.39" specification. Millicandela rating of 1.8mcd is comparable to the original 2.2mcd. Power dissipation of 105mW exceeds the MAN493C maximum by 50%, requiring verification that existing circuit current-limiting resistors can accommodate this increase. ROHS3 compliance and active status support production continuity.

HDSP-303A (Broadcom Limited) - Lower Power Dissipation Alternative

The HDSP-303A offers the lowest power dissipation at 37mW, approximately 53% below the MAN493C specification. This substitute maintains the 10-DIP (0.300", 7.62mm) package and common cathode configuration. Forward voltage of 1.8V is at the lower end of acceptable range. Millicandela rating of 0.45mcd is significantly reduced compared to the original 2.2mcd, making this option suitable only for applications where brightness reduction is acceptable. ROHS3 compliance and active status are confirmed.

LSHD-7503 (Lite-On Inc.) - Smaller Digit Height with Higher Brightness

The LSHD-7503 features a 0.30" digit height, representing a 23% reduction from the MAN493C 0.39" specification. The package pitch differs at 10-DIP (0.200", 5.08mm) versus the original 10-DIP (0.300", 7.62mm), requiring PCB footprint verification before substitution. Forward voltage of 2.1V is within acceptable range. Millicandela rating of 12mcd significantly exceeds the original 2.2mcd. This substitute is suitable only for applications where smaller display size and higher brightness are compatible with circuit board layout. ROHS3 compliance is confirmed; REACH status is affected.

Frequently Asked Questions (FAQ)

Q: Can I use LSHD-7503 as a direct replacement for MAN493C on my existing PCB?

A: The LSHD-7503 has a different package pitch (10-DIP 0.200" versus 10-DIP 0.300"), making it incompatible with PCB footprints designed for the MAN493C. Additionally, the 0.30" digit height is smaller than the original 0.39" specification. This substitute requires PCB redesign and is not suitable for direct board-level replacement.

Q: What is the difference between the two Broadcom HDSP-303 variants?

A: Both HDSP-303E and HDSP-303A maintain identical package and configuration specifications. The primary differences are forward voltage (1.9V versus 1.8V), brightness output (1.8mcd versus 0.45mcd), and power dissipation (105mW versus 37mW). The HDSP-303E provides higher brightness closer to the original MAN493C specification, while the HDSP-303A offers minimal power consumption.

Q: Will changing forward voltage from 2V to 1.8V or 1.9V affect my circuit operation?

A: Forward voltage variations within the 1.8V to 2.1V range are accommodated by standard current-limiting resistor designs used in 7-segment display circuits. Verify that your circuit's resistor value was calculated for the original 2V specification. If resistor tolerance is adequate, voltage variations of ±0.2V typically do not require circuit modification. Consult your circuit schematic for specific resistor values and tolerance specifications.

Q: Why does the MAN493C show as obsolete when substitutes are available?

A: The MAN493C is classified as obsolete by the original manufacturer (onsemi), indicating it is no longer in active production. All listed substitutes are manufactured by alternative suppliers (Kingbright, Broadcom, Lite-On) and maintain active product status, ensuring continued availability for new designs and production requirements.

Q: Are all substitute parts RoHS3 compliant?

A: Yes, all four substitute parts (SC39-11EWA, HDSP-303E, HDSP-303A, and LSHD-7503) are confirmed ROHS3 compliant. The original MAN493C does not specify RoHS status. RoHS3 compliance ensures these substitutes meet current environmental and regulatory requirements for electronic component manufacturing and use.

Q: Which substitute offers the best brightness match to the original MAN493C?

A: The SC39-11EWA delivers 4.1mcd brightness, which exceeds the original 2.2mcd specification while maintaining identical digit height and package configuration. The HDSP-303E provides 1.8mcd, which is closest in absolute value to the original specification. Selection depends on whether your application requires brightness equal to or greater than the original design.