MANC3440 Equivalent & Substitute Parts

Part Overview

The MANC3440 is a 0.3" single-character green 7-segment LED display module manufactured by onsemi 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 a 20mA test current and delivers 6.8mcd brightness output. Substitute parts must maintain compatibility with the 10-DIP package footprint, common cathode configuration, and green LED color specification while accommodating variations in electrical performance parameters.

Substiute Parts

MANC3440

onsemiIn Stock: 1108MANC3440 Datasheet

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HDSP-A513

Broadcom LimitedIn Stock: 1848HDSP-A513 Datasheet

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HDSP-A903

Broadcom LimitedIn Stock: 3312HDSP-A903 Datasheet

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LDS-C352RI

Lumex Opto/Components Inc.In Stock: 1887LDS-C352RI Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MANC3440 is determined by strict adherence to the following parameters:

Critical Parameters (Must Match):

• Display Type: 7-Segment
• Number of Characters: 1
• Common Pin Configuration: Common Cathode
• Color: Green
• Package / Case: 10-DIP (0.200", 5.08mm)
• Digit/Alpha Size: 0.30" (7.62mm)

Allowable Variation Parameters:

• Voltage - Forward (Vf) (Typ): ±0.2V tolerance
• Current - Test: Lower values acceptable (reduced power consumption)
• Millicandela Rating: Lower values acceptable (reduced brightness)
• Wavelength - Peak: ±3nm tolerance (green spectrum consistency)
• Power Dissipation (Max): Lower values acceptable

All three substitute parts meet the critical parameter requirements. Variations in electrical performance are acceptable provided the core functional and mechanical specifications remain constant.

Parameter Comparison

Engineering Selection Recommendations

HDSP-A513 (Broadcom Limited) is the primary substitute for direct replacement applications. This part maintains identical forward voltage (2.1V) and package configuration while operating at reduced test current (10mA vs. 20mA). The HDSP-A513 is actively manufactured and ROHS3 compliant, providing long-term supply assurance and regulatory compliance for new designs.

HDSP-A903 (Broadcom Limited) offers the lowest power dissipation (64mW) among available substitutes, making it suitable for power-constrained applications. Forward voltage is reduced to 2.0V, requiring circuit verification for compatibility. This part is actively manufactured and ROHS3 compliant. Note the increased depth dimension (0.390" vs. 0.240") may affect mechanical fit in space-constrained layouts.

LDS-C352RI (Lumex Opto/Components Inc.) provides an alternative from a different manufacturer with forward voltage of 2.2V. This part is actively manufactured and ROHS3 compliant. Mechanical dimensions are nearly identical to the original MANC3440, with only minor width variation (0.299" vs. 0.300").

All three substitutes are actively produced components with current availability, eliminating obsolescence risk associated with the original MANC3440.

Frequently Asked Questions (FAQ)

Q: Can HDSP-A513, HDSP-A903, and LDS-C352RI be used interchangeably with MANC3440?

A: These parts are mechanically and functionally compatible as direct substitutes within the constraints of your circuit design. All maintain the 10-DIP package footprint, common cathode configuration, and 0.30" character size. However, differences in forward voltage (2.0V to 2.2V vs. 2.1V) and test current (10mA vs. 20mA) require verification that your driver circuit can accommodate these variations. Brightness output differs significantly across substitutes due to varying millicandela ratings.

Q: What are the key differences between the substitute parts?

A: HDSP-A513 matches the original forward voltage most closely (2.1V). HDSP-A903 offers the lowest power consumption (64mW) but has increased depth (0.390") and lowest brightness (1.5mcd). LDS-C352RI has the highest forward voltage (2.2V) and maintains dimensions closest to the original. All operate at 10mA test current, half the original specification.

Q: Are there mechanical compatibility concerns?

A: HDSP-A903 has a depth of 0.390" compared to 0.240" for the original MANC3440 and other substitutes. Verify clearance in your PCB layout and enclosure design. All other dimensions remain consistent across all parts.

Q: Do the substitute parts meet current regulatory requirements?

A: Yes. HDSP-A513, HDSP-A903, and LDS-C352RI are all ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards for new product designs and manufacturing.

Q: How do brightness levels compare?

A: The original MANC3440 delivers 6.8mcd. HDSP-A513 provides 3mcd, LDS-C352RI provides 2.5mcd, and HDSP-A903 provides 1.5mcd. Applications requiring high visibility may need circuit adjustments or alternative solutions if reduced brightness is unacceptable.

Q: What forward voltage should I design for?

A: Design circuits to accommodate the range 2.0V to 2.2V across all substitutes. HDSP-A513 at 2.1V provides the closest match to the original specification. Verify your current-limiting resistor calculations account for the specific forward voltage of your selected substitute.