LTS-7760P Equivalent & Substitute Parts

Part Overview

The LTS-7760P is a 7-segment LED display module manufactured by Lite-On Inc., designed for single-character numeric and alphanumeric display applications. This component features a common cathode configuration with a 0.43" digit height and red LED color. The part is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing production support, maintenance, and new design implementations where this display type remains the preferred form factor.

Substiute Parts

LTS-7760P

Lite-On Inc.In Stock: 1082LTS-7760P Datasheet

Current PartRFQ

LDS-C415RI

Lumex Opto/Components Inc.In Stock: 722LDS-C415RI Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LTS-7760P is determined by strict alignment across the following critical parameters:

• Display Configuration: 7-segment, single character, common cathode topology
• Package Compatibility: 14-DIP (0.300", 7.62mm) with 11 leads for direct PCB mounting
• Digit Height: 0.43" nominal dimension to maintain visual consistency and panel cutout compatibility
• Color and Wavelength: Red LED with peak wavelength in the 697–700nm range
• Electrical Operating Range: Forward voltage 2.0–2.1V and test current 10–20mA within acceptable circuit design margins
• Physical Envelope: Overall dimensions within ±0.01" tolerance to ensure mechanical fit in existing assemblies

The LDS-C415RI from Lumex Opto/Components Inc. meets all substitution criteria. It maintains identical package geometry, common cathode configuration, and digit height while operating within compatible electrical parameters. The part is currently in active production status, ensuring long-term availability and supply chain stability.

Parameter Comparison

Engineering Selection Recommendations

The LDS-C415RI is the qualified substitute for the obsolete LTS-7760P based on the following engineering criteria:

Product Status and Supply Chain: The LDS-C415RI is in active production status, providing assured long-term availability and supply continuity. The LTS-7760P is obsolete, making the substitute necessary for ongoing support and new production builds.

Regulatory Compliance: The LDS-C415RI carries ROHS3 compliance and REACH unaffected status, meeting current environmental and regulatory requirements for electronic components in most jurisdictions. These certifications support compliance with modern procurement and manufacturing standards.

Package and Mechanical Compatibility: Both parts use identical 14-DIP (0.300", 7.62mm) packaging with 11 leads. Physical dimensions are within acceptable tolerance ranges (height difference of 0.004", width identical, depth difference of 0.003"), ensuring direct PCB mounting compatibility without redesign.

Electrical Operating Parameters: The LDS-C415RI operates at 2.0V forward voltage versus 2.1V for the LTS-7760P, and at 10mA test current versus 20mA. Both values fall within standard circuit design margins for 7-segment display applications. The 0.1V difference is negligible in typical series-resistor-limited LED drive circuits. The lower test current of the substitute reflects modern LED efficiency improvements.

Optical Characteristics: Peak wavelength separation (700nm vs. 697nm) is within the red LED spectrum and imperceptible to human vision. The millicandela rating difference (0.6mcd vs. 0.8mcd) reflects the lower test current specification and does not preclude substitution in applications where the original brightness was not a critical design constraint.

Frequently Asked Questions (FAQ)

Q: Can the LDS-C415RI be used as a direct replacement for the LTS-7760P without circuit modification?

A: Yes. Both parts share identical package geometry, pin configuration, and common cathode topology. The electrical parameter differences (0.1V forward voltage, 10mA vs. 20mA test current) are within standard design tolerances for LED display circuits using series current-limiting resistors. No circuit redesign is required.

Q: What is the significance of the digit height specification of 0.43"?

A: The digit height determines the visual size of displayed characters and must match the mechanical cutout dimensions of the display panel or bezel. Both the LTS-7760P (11.00mm) and LDS-C415RI (10.92mm) meet the 0.43" specification within manufacturing tolerance, ensuring proper fit and appearance.

Q: Why does the LDS-C415RI have a lower test current (10mA) than the LTS-7760P (20mA)?

A: The test current specification reflects the LED segment design and efficiency. Modern LED manufacturing typically achieves adequate brightness at lower current levels. The lower test current of the substitute does not indicate reduced functionality; it reflects improved LED efficiency. Circuit design using series resistors will accommodate this difference automatically.

Q: Are there any compliance or certification differences between these parts?

A: The LDS-C415RI carries ROHS3 and REACH certifications, while the LTS-7760P specifications do not document these certifications. For applications subject to environmental regulations or customer compliance requirements, the LDS-C415RI provides documented compliance status. Both parts carry identical ECCN (EAR99) and MSL (1 - Unlimited) classifications.

Q: What is the physical dimension tolerance between these parts?

A: Height differs by 0.004" (0.10mm), width is identical, and depth differs by 0.003" (0.07mm). These differences are within standard manufacturing tolerances for DIP packages and do not affect mechanical fit in standard PCB assemblies or panel cutouts designed for 0.43" 7-segment displays.

Q: Can brightness differences between the parts affect display visibility?

A: The millicandela rating difference (0.8mcd vs. 0.6mcd) reflects the lower test current specification of the substitute. In typical applications with series current-limiting resistors, both parts will deliver adequate brightness for standard display applications. Applications requiring maximum brightness should evaluate the specific operating current and ambient lighting conditions.