LTS-7653HR 7-Segment LED Display - Equivalent & Substitute Parts

Part Overview

The LTS-7653HR is a single-character red 7-segment LED display manufactured by Lite-On Inc., housed in a 14-DIP package with 11 leads. This component is classified as obsolete, making equivalent substitute parts necessary for new designs and ongoing production requirements. The display operates at 2V forward voltage with a 20mA test current and features a 0.43-inch digit height suitable for standard numeric display applications.

Substiute Parts

LTS-7653HR

Lite-On Inc.In Stock: 1166LTS-7653HR Datasheet

Current PartRFQ

5082-7653

Broadcom LimitedIn Stock: 21505082-7653 Datasheet

MFR RecommendedRFQ

SC43-11EWA

KingbrightIn Stock: 968SC43-11EWA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LTS-7653HR are qualified based on the following critical parameters that determine functional compatibility:

Primary Compatibility Criteria:

• Display Type: 7-Segment LED (single character)
• Common Pin Configuration: Common Cathode
• Package / Case: 14-DIP (0.300", 7.62mm), 11 Leads
• Digit Height: 0.43" nominal (11.00mm ±0.08mm tolerance range)
• Color: Red
• Voltage - Forward (Vf): 2V nominal (±0.1V acceptable range)
• Current - Test: 20mA
• Wavelength - Peak: 635nm ±10nm (red spectrum)

The two qualified substitute parts—5082-7653 (Broadcom Limited) and SC43-11EWA (Kingbright)—meet these core electrical and mechanical parameters, enabling direct replacement in 14-DIP socket applications. Both substitutes are active products with current manufacturing status and full RoHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

5082-7653 (Broadcom Limited): This substitute is an active product with ROHS3 compliance and REACH unaffected status. The forward voltage is 2.1V, which is within acceptable tolerance for common cathode 7-segment applications. Physical dimensions are nominally equivalent with a slightly reduced depth (0.250" vs. 0.310"). Power dissipation is 105mW, higher than the original 75mW specification. The millicandela rating of 1.12mcd is lower than the original 2.2mcd, resulting in reduced brightness output.

SC43-11EWA (Kingbright): This substitute is an active product with ROHS3 compliance and REACH unaffected status. The forward voltage matches the original specification at 2V. Physical dimensions are nearly identical to the original part. Power dissipation matches the original specification at 75mW. The millicandela rating of 6.9mcd exceeds the original 2.2mcd, providing increased brightness output. The wavelength peak of 627nm is within the red spectrum range, with a 8nm shift toward the orange-red region compared to the original 635nm.

Both substitutes maintain the critical 14-DIP package configuration and 11-lead pinout, ensuring mechanical and electrical compatibility in existing PCB designs.

Frequently Asked Questions (FAQ)

Q: Can the 5082-7653 and SC43-11EWA be used interchangeably with the LTS-7653HR?

A: Both parts are qualified substitutes based on matching display type, common cathode configuration, package format, digit height, and operating current. However, differences in forward voltage, brightness output, and wavelength peak should be evaluated against specific circuit design requirements and visual performance expectations.

Q: What is the significance of the forward voltage difference between the LTS-7653HR (2V) and the 5082-7653 (2.1V)?

A: The 0.1V difference is within typical tolerance ranges for LED displays. Circuit designs using current-limiting resistors will accommodate this variation. However, designs with tight voltage regulation or low-voltage supplies should verify that the 2.1V specification does not exceed available headroom.

Q: How do the brightness differences affect component selection?

A: The SC43-11EWA provides 6.9mcd compared to the original 2.2mcd, resulting in approximately 3.1 times greater brightness. The 5082-7653 provides 1.12mcd, approximately 50% of the original brightness. Visual performance in the target application should determine which substitute is appropriate.

Q: Are there package compatibility concerns with the dimensional variations?

A: All three parts use the 14-DIP (0.300", 7.62mm) package with 11 leads. The dimensional variations in height, width, and depth are minor and within typical manufacturing tolerances for this package class. PCB socket compatibility is maintained across all three parts.

Q: What compliance certifications apply to the substitute parts?

A: Both the 5082-7653 and SC43-11EWA are ROHS3 compliant and REACH unaffected. The original LTS-7653HR compliance status is not specified in the provided data. For applications requiring specific regulatory compliance, the active substitute parts provide documented certification.

Q: Is the wavelength difference between 635nm and 627nm significant?

A: Both wavelengths fall within the red spectrum. The 8nm shift in the SC43-11EWA toward 627nm represents a slight shift toward orange-red, which may be perceptually distinguishable in direct visual comparison but remains within standard red LED color classification.