MDA6141C Equivalent & Substitute Parts

Part Overview

The MDA6141C is a 14-segment alphanumeric LED display module manufactured by onsemi, featuring a 2-character common cathode configuration with red color output. 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 provides 1.4mcd brightness output at a 697nm peak wavelength. The 0.54" character size and 18-DIP package make it suitable for applications requiring compact alphanumeric display functionality.

Substiute Parts

MDA6141C

onsemiIn Stock: 783MDA6141C Datasheet

Current PartRFQ

LTP-3784E

Lite-On Inc.In Stock: 3093LTP-3784E Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MDA6141C is determined by the following critical parameters:

• Display Configuration: 2-character, 14-segment alphanumeric format with common cathode topology
• Package Compatibility: 18-DIP (0.600", 15.24mm) with 14 leads for direct PCB mounting
• Character Size: 0.54" (13.72mm) digit/alpha size for form factor compatibility
• Electrical Operating Range: Forward voltage between 2.0V–2.1V and test current of 20mA
• Color Category: Red or orange-red spectrum (wavelength 630nm–697nm)
• Brightness Class: Millicandela rating in the 1.4mcd–2.3mcd range

The LTP-3784E from Lite-On Inc. meets all substitution criteria through matching display type, package footprint, character size, electrical specifications, and color category. The substitute part operates at 2V forward voltage (within acceptable tolerance of the 2.1V specification) and maintains the same 20mA test current and common cathode configuration.

Parameter Comparison

Engineering Selection Recommendations

The LTP-3784E serves as a direct functional substitute for the MDA6141C based on product status and compliance considerations. The MDA6141C is classified as obsolete, creating supply chain constraints for new production and maintenance applications. The LTP-3784E maintains active product status with Lite-On Inc., ensuring ongoing availability and supply chain stability.

From a compliance perspective, the LTP-3784E is RoHS3 compliant and REACH affected, providing regulatory alignment for applications subject to environmental and hazardous substance restrictions. Both parts carry MSL 1 (Unlimited) moisture sensitivity ratings, indicating equivalent handling and storage requirements.

The electrical parameters of the LTP-3784E fall within acceptable operating tolerances: the 2V forward voltage is 0.1V lower than the MDA6141C specification, and the 20mA test current remains identical. The higher millicandela rating (2.3mcd versus 1.4mcd) of the LTP-3784E provides improved brightness output. Physical dimensions are nearly identical, with negligible differences in height and width that do not affect PCB layout compatibility.

The color shift from pure red (697nm) to orange-red (630nm) represents the primary visual difference and should be evaluated against application-specific color requirements.

Frequently Asked Questions (FAQ)

Q: Can the LTP-3784E replace the MDA6141C in existing designs?

A: Yes. Both parts share identical 2-character, 14-segment alphanumeric display configuration, common cathode topology, 0.54" character size, and 18-DIP package footprint. Electrical specifications are compatible within standard operating tolerances. The primary consideration is the color difference: orange-red (LTP-3784E) versus red (MDA6141C).

Q: What is the voltage difference between these parts?

A: The MDA6141C operates at 2.1V typical forward voltage, while the LTP-3784E operates at 2V typical forward voltage. This 0.1V difference is within acceptable tolerance for most circuit designs and does not require redesign of current-limiting resistor networks.

Q: Are the physical dimensions compatible?

A: Yes. The LTP-3784E dimensions (0.833" H x 0.989" W x 0.307" D) are nearly identical to the MDA6141C (0.835" H x 0.996" W x 0.307" D). Differences are less than 0.002" in height and width, which do not affect PCB footprint compatibility or mounting clearances.

Q: Does the higher brightness of the LTP-3784E affect circuit design?

A: The LTP-3784E provides 2.3mcd brightness compared to 1.4mcd for the MDA6141C. This higher output does not require circuit modifications. Current-limiting resistor values remain valid, as both parts operate at the same 20mA test current specification.

Q: What is the significance of the color difference?

A: The MDA6141C produces red light at 697nm peak wavelength, while the LTP-3784E produces orange-red light at 630nm peak wavelength. This difference is visually perceptible and should be evaluated against application requirements for color consistency, user interface design, and visual contrast specifications.

Q: Are there any compliance differences between these parts?

A: The MDA6141C is classified as obsolete with no RoHS or REACH status specified. The LTP-3784E is RoHS3 compliant and REACH affected, providing regulatory alignment for applications subject to environmental restrictions. Both parts carry MSL 1 (Unlimited) moisture sensitivity ratings.

Q: What packaging options are available?

A: The MDA6141C is supplied in standard packaging (not specified). The LTP-3784E is supplied in tube packaging, which is standard for component distribution and does not affect component functionality or performance.