MAN6740 Equivalent & Substitute Parts Reference

Part Overview

The MAN6740 is a dual-character 7-segment LED display module manufactured by Everlight Electronics Co Ltd, featuring a 0.56" digit height with common cathode configuration and red color output. This component is classified as obsolete, necessitating identification of active equivalent parts for ongoing design requirements and production continuity. The MAN6740 operates at a maximum forward voltage of 2V with a test current of 20mA and is packaged in an 18-DIP (0.600", 15.24mm) configuration suitable for through-hole PCB assembly.

Substiute Parts

MAN6740

Everlight Electronics Co LtdIn Stock: 794MAN6740 Datasheet

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HDSP-523A

Broadcom LimitedIn Stock: 963HDSP-523A Datasheet

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HDSP-523E

Broadcom LimitedIn Stock: 1326HDSP-523E Datasheet

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LDD-C516RI

Lumex Opto/Components Inc.In Stock: 2764LDD-C516RI Datasheet

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LDD-HTC514RI

Lumex Opto/Components Inc.In Stock: 2117LDD-HTC514RI Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MAN6740 is determined by strict alignment of the following critical parameters:

Primary Compatibility Criteria:

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

Secondary Electrical Parameters (allowable variance):

• Voltage - Forward (Vf) (Typ): Range 1.8V to 2.05V
• Current - Test: Range 10mA to 20mA
• Wavelength - Peak: Range 635nm to 660nm

All identified substitute parts meet the primary compatibility criteria. Electrical parameter variations within the specified ranges are acceptable for direct substitution in applications designed for the MAN6740 footprint and functional requirements.

Parameter Comparison

Engineering Selection Recommendations

All four substitute parts (HDSP-523A, HDSP-523E, LDD-C516RI, LDD-HTC514RI) are active products with ROHS3 compliance and MSL 1 rating, providing long-term availability and regulatory compliance advantages over the obsolete MAN6740.

HDSP-523A (Broadcom Limited): Active status with bulk packaging. Forward voltage of 1.85V and 20mA test current align with MAN6740 electrical specifications. Suitable for applications requiring direct current-level compatibility.

HDSP-523E (Broadcom Limited): Active status with tube packaging. Forward voltage of 2.05V closely matches MAN6740 maximum specification of 2V. 20mA test current maintains electrical compatibility. Tube packaging provides component protection during storage and handling.

LDD-C516RI (Lumex Opto/Components Inc.): Active status with bulk packaging. Operates at 1.8V forward voltage with reduced test current of 10mA, resulting in lower power dissipation (100mW versus 960mW for MAN6740). Highest millicandela rating (13.3mcd) among substitutes. Suitable for power-constrained applications.

LDD-HTC514RI (Lumex Opto/Components Inc.): Active status with tube packaging. Forward voltage of 2V matches MAN6740 specification exactly. Test current of 10mA provides reduced power consumption. Tube packaging offers component protection. Wavelength peak of 635nm represents the shortest wavelength among substitutes.

All substitute parts maintain identical 18-DIP package footprint, digit size (0.56"), character count (2), common cathode configuration, and red color specification, ensuring direct PCB compatibility with MAN6740 designs.

Frequently Asked Questions (FAQ)

Q: Can HDSP-523A, HDSP-523E, LDD-C516RI, and LDD-HTC514RI be used interchangeably with MAN6740?

A: Yes. All four parts meet the primary compatibility criteria: 7-segment display type, 2-character configuration, 0.56" digit height, common cathode pin configuration, red color, and 18-DIP package. Electrical parameters (forward voltage 1.8V to 2.05V, test current 10mA to 20mA, wavelength 635nm to 660nm) fall within acceptable substitution ranges.

Q: What is the primary difference between Broadcom HDSP-523A and HDSP-523E?

A: Both parts are electrically equivalent with identical 18-DIP footprint and 0.56" digit size. The primary difference is packaging: HDSP-523A is supplied in bulk, while HDSP-523E is supplied in tubes. Forward voltage differs slightly (1.85V versus 2.05V), with HDSP-523E closer to MAN6740 specification.

Q: What is the primary difference between Lumex LDD-C516RI and LDD-HTC514RI?

A: Both parts are electrically equivalent with identical 18-DIP footprint and 0.56" digit size. The primary difference is packaging: LDD-C516RI is supplied in bulk, while LDD-HTC514RI is supplied in tubes. Forward voltage differs slightly (1.8V versus 2V), with LDD-HTC514RI matching MAN6740 specification exactly.

Q: How do the test current specifications affect substitution?

A: MAN6740 specifies 20mA test current. HDSP-523A and HDSP-523E maintain 20mA test current. LDD-C516RI and LDD-HTC514RI operate at 10mA test current. Lower test current reduces power dissipation and heat generation. Applications designed for 20mA operation can accommodate 10mA parts; however, brightness output may differ due to millicandela rating variations.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All four substitute parts (HDSP-523A, HDSP-523E, LDD-C516RI, LDD-HTC514RI) are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching MAN6740 compliance status.

Q: Which substitute part offers the highest brightness?

A: LDD-C516RI provides the highest millicandela rating at 13.3mcd, compared to MAN6740 at 0.42mcd. HDSP-523A provides 6.5mcd, HDSP-523E provides 4mcd, and LDD-HTC514RI provides 3.9mcd.

Q: What packaging options are available?

A: Broadcom HDSP-523A is supplied in bulk packaging. Broadcom HDSP-523E is supplied in tube packaging. Lumex LDD-C516RI is supplied in bulk packaging. Lumex LDD-HTC514RI is supplied in tube packaging. Tube packaging provides enhanced component protection during storage and transportation.

Q: Do all substitute parts fit the same PCB footprint as MAN6740?

A: Yes. All substitute parts use 18-DIP (0.600", 15.24mm) package configuration, ensuring direct PCB footprint compatibility with MAN6740 designs without layout modifications.