MST6110C Equivalent & Substitute Parts

Part Overview

The MST6110C is a 3-character red 7-segment LED display module manufactured by onsemi, packaged in 28-DIP configuration with 0.56" digit height. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production support. The display operates as a common anode configuration with typical forward voltage of 2.1V and 20mA test current, suitable for numeric and alphanumeric display applications.

Substiute Parts

MST6110C

onsemiIn Stock: 1188MST6110C Datasheet

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LB-603VF

Rohm SemiconductorIn Stock: 1357LB-603VF Datasheet

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LDT-A514RI

Lumex Opto/Components Inc.In Stock: 868LDT-A514RI Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MST6110C are qualified based on the following critical parameters that determine functional compatibility:

Primary Compatibility Criteria:

• Number of Characters: 3 (exact match required)
• Display Type: 7-Segment (exact match required)
• Common Pin Configuration: Common Anode (exact match required)
• Color: Red (exact match required)
• Package / Case: 28-DIP (0.600", 15.24mm) (exact match required)
• Digit/Alpha Size: 0.56" nominal (14.22mm to 14.30mm range acceptable)

Secondary Electrical Parameters (within acceptable operating ranges):

• Voltage - Forward (Vf): 2.0V to 2.1V typical
• Current - Test: 10mA to 20mA
• Wavelength - Peak: 635nm to 697nm (red spectrum)

All substitute parts listed maintain identical mechanical footprint and pinout compatibility with the MST6110C, ensuring direct replacement capability in existing PCB designs.

Parameter Comparison

Engineering Selection Recommendations

LB-603VF (Rohm Semiconductor): This substitute is classified as Active product status with ROHS3 compliance. The LB-603VF operates at 2V typical forward voltage with 10mA test current, requiring circuit design adjustment for the reduced current specification compared to the MST6110C. The wavelength peak of 650nm falls within the red spectrum range. Packaging is provided in Bulk format.

LDT-A514RI (Lumex Opto/Components Inc.): This substitute is classified as Active product status with ROHS3 compliance. The LDT-A514RI maintains the 2.1V forward voltage specification matching the MST6110C, with 10mA test current. The wavelength peak of 635nm is within acceptable red spectrum parameters. Packaging is provided in Tube format. Dimensional characteristics closely align with the MST6110C.

Both substitute parts maintain identical 28-DIP package footprint and pinout compatibility. Selection between substitutes should be based on current requirements, wavelength preference, and packaging format availability for your production environment.

Frequently Asked Questions (FAQ)

Q: Can the LB-603VF directly replace the MST6110C without circuit modifications?

A: The LB-603VF is mechanically and electrically compatible for direct PCB replacement due to identical 28-DIP package and pinout. However, the reduced test current specification (10mA versus 20mA) may require verification of current-limiting resistor values in your display driver circuit to maintain proper brightness levels.

Q: What is the difference in wavelength between the substitute parts and the original MST6110C?

A: The MST6110C operates at 697nm peak wavelength. The LB-603VF operates at 650nm and the LDT-A514RI operates at 635nm. All three wavelengths fall within the red spectrum. Visual color perception differences may be minimal, but wavelength variation should be considered for applications requiring specific color matching.

Q: Are both substitute parts suitable for new production designs?

A: Both LB-603VF and LDT-A514RI are classified as Active product status, making them suitable for new production designs. The MST6110C is classified as Obsolete and should not be specified for new designs.

Q: What packaging formats are available for the substitute parts?

A: The LB-603VF is available in Bulk packaging format. The LDT-A514RI is available in Tube packaging format. Packaging selection should align with your production volume and handling requirements.

Q: Do the substitute parts meet the same compliance standards as the MST6110C?

A: Both substitute parts maintain REACH Unaffected status and EAR99 ECCN classification matching the MST6110C. The LB-603VF and LDT-A514RI are both ROHS3 compliant. Moisture Sensitivity Level (MSL) is 1 (Unlimited) for all three parts.