MAN6940 LED 7-Segment Display - Equivalent & Substitute Parts

Part Overview

The MAN6940 is a dual-character red 7-segment LED display module manufactured by Everlight Electronics Co Ltd. This component is classified as a Display Module for LED Character and Numeric applications, featuring a common cathode configuration with a 0.56-inch character height. The part is currently in Active product status with 793 units in stock.

The MAN6940 operates at a maximum forward voltage of 2.5V with a test current of 20mA, delivering a brightness rating of 2.2 millicandela at a peak wavelength of 635nm. The 18-DIP package format (0.600-inch pitch) provides standard through-hole mounting compatibility. Identifying equivalent substitute parts becomes necessary when managing component availability, optimizing procurement timelines, or addressing supply chain constraints while maintaining functional and mechanical compatibility.

Substiute Parts

MAN6940

Everlight Electronics Co LtdIn Stock: 851MAN6940 Datasheet

Current PartRFQ

HDSP-523E

Broadcom LimitedIn Stock: 1326HDSP-523E Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution compatibility for the MAN6940 is determined by the following critical parameters:

Mandatory Matching Criteria:

• Number of Characters: 2
• Display Type: 7-Segment
• Common Pin Configuration: Common Cathode
• Color: Red
• Character Size: 0.56" (14.22mm)
• Package / Case: 18-DIP (0.600", 15.24mm)

Allowable Parameter Variations:

• Voltage - Forward (Vf): Substitute parts must operate within the voltage range compatible with common cathode red 7-segment display specifications. The MAN6940 specifies 2.5V maximum; substitute parts with lower forward voltage (such as 2.05V) remain functionally compatible in standard circuit designs.
• Current - Test: Substitute parts rated at 20mA maintain direct compatibility with existing driver circuits.
• Millicandela Rating: Brightness variations between 2.2mcd and 4mcd represent acceptable performance differences for display applications without requiring circuit redesign.
• Wavelength - Peak: Red LED wavelengths between 635nm and 640nm fall within the standard red spectrum and are visually indistinguishable in typical applications.
• Power Dissipation: Variations in maximum power dissipation do not affect substitution eligibility when forward voltage and current ratings remain compatible.

The HDSP-523E from Broadcom Limited meets all mandatory matching criteria and falls within allowable parameter variations, qualifying it as a direct substitute for the MAN6940.

Parameter Comparison

Engineering Selection Recommendations

Both the MAN6940 and HDSP-523E are Active product status components with full ROHS3 compliance and MSL Level 1 ratings, indicating unrestricted moisture sensitivity handling. Both parts are suitable for new design implementations and ongoing production applications.

The MAN6940 is available with 793 units in current stock inventory. The HDSP-523E is available with 1310 units in current stock inventory, providing enhanced supply availability.

Selection between these parts should be based on:

1. Inventory Availability: The HDSP-523E offers higher stock levels for immediate procurement needs.
2. Forward Voltage Characteristics: The HDSP-523E operates at 2.05V compared to the MAN6940's 2.5V maximum, resulting in lower power consumption and reduced thermal dissipation in the display module itself.
3. Brightness Performance: The HDSP-523E delivers 4mcd brightness compared to the MAN6940's 2.2mcd, providing enhanced display visibility without circuit modification.
4. Physical Dimensions: Both parts fit standard 18-DIP through-hole footprints with negligible dimensional variations (less than 0.02 inches in height and width).
5. Regulatory Compliance: Both parts meet identical compliance standards, ensuring equivalent suitability for regulated applications.

Frequently Asked Questions (FAQ)

Q: Can the HDSP-523E directly replace the MAN6940 in existing circuit designs?

A: Yes. Both parts share identical package format (18-DIP), pin count, common cathode configuration, and test current rating (20mA). The HDSP-523E operates at a lower forward voltage (2.05V versus 2.5V maximum), which is compatible with standard common cathode driver circuits. No circuit modifications are required.

Q: What is the significance of the forward voltage difference between these parts?

A: The MAN6940 specifies a maximum forward voltage of 2.5V, while the HDSP-523E operates at 2.05V. This 0.45V difference results in lower power dissipation in the HDSP-523E (62.5mW versus 1.2W maximum for the MAN6940). Both voltage ratings are compatible with standard 5V logic-level driver circuits commonly used for 7-segment display applications.

Q: Are there brightness differences between these displays?

A: Yes. The HDSP-523E delivers 4 millicandela brightness compared to the MAN6940's 2.2 millicandela. This represents a 1.8x brightness increase. Both brightness levels are suitable for standard indoor display applications. The HDSP-523E provides enhanced visibility in higher ambient light conditions.

Q: Do both parts use the same wavelength?

A: The wavelengths differ slightly: MAN6940 at 635nm and HDSP-523E at 640nm. Both wavelengths fall within the standard red LED spectrum and produce visually identical red color appearance in typical applications.

Q: Are there physical mounting differences?

A: Both parts use 18-DIP (0.600-inch pitch) through-hole packages and fit identical PCB footprints. Physical dimensions are nearly identical, with the HDSP-523E measuring 0.732" H x 0.984" W x 0.315" D compared to the MAN6940's 0.750" H x 0.985" W x 0.315" D. These variations (less than 0.02 inches) do not affect mounting or clearance in standard applications.

Q: What compliance certifications apply to both parts?

A: Both the MAN6940 and HDSP-523E are ROHS3 compliant and carry MSL Level 1 (Unlimited) moisture sensitivity ratings. Both parts are suitable for applications requiring environmental compliance and unrestricted moisture handling.

Q: Which part should be selected for new designs?

A: Both parts are Active status components suitable for new designs. Selection should be based on inventory availability, desired brightness level, and power consumption requirements. The HDSP-523E offers higher stock availability and lower power consumption characteristics.