LTS-3401LE 7-Segment LED Display - Equivalent & Substitute Parts

Part Overview

The LTS-3401LE is a single-character 7-segment LED display module manufactured by Lite-On Inc., designed for numeric and character display applications. This component features an orange-red light-emitting diode configuration with common anode architecture, operating at 2V forward voltage with 20mA test current. The product is currently classified as obsolete, making identification of compatible substitute parts essential for ongoing system support and new design implementations where this display type is required.

Substiute Parts

LTS-3401LE

Lite-On Inc.In Stock: 727LTS-3401LE Datasheet

Current PartRFQ

SA08-11EWA

KingbrightIn Stock: 6338SA08-11EWA Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LTS-3401LE is determined by strict alignment of the following critical parameters:

Mandatory Matching Parameters:

• Display Type: 7-Segment configuration
• Number of Characters: Single character (1)
• Digit/Alpha Size: 0.80" (20.32mm)
• Common Pin Configuration: Common Anode
• Voltage - Forward (Vf): 2V
• Current - Test: 20mA
• Package / Case: 18-DIP (0.600", 15.24mm)
• Power Dissipation (Max): 75mW

Allowable Variation Parameters:

• Color: Orange-Red to Red (within visible spectrum range for this product category)
• Wavelength - Peak: 630nm to 627nm (minor spectral shift acceptable within red family)
• Millicandela Rating: Variation permitted based on application requirements
• Physical Dimensions: Tolerance within ±0.001" acceptable for mechanical fit

The SA08-11EWA from Kingbright meets all mandatory matching criteria and represents a direct functional equivalent with active product status and current manufacturing availability.

Parameter Comparison

Engineering Selection Recommendations

The SA08-11EWA from Kingbright is the qualified substitute for the obsolete LTS-3401LE. Selection is based on the following engineering criteria:

Product Status Alignment: The LTS-3401LE is classified as obsolete with no ongoing manufacturing. The SA08-11EWA maintains active product status with current production availability (6281 pieces in stock), ensuring supply chain continuity for both replacement and new design applications.

Compliance and Certifications: The SA08-11EWA is RoHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component procurement. Both parts share identical ECCN (EAR99) and HTSUS (8541.41.0000) classifications.

Electrical and Mechanical Compatibility: All critical electrical parameters align exactly: 2V forward voltage, 20mA test current, 75mW maximum power dissipation, and 18-DIP package configuration. Physical dimensions are within acceptable tolerance for direct PCB mounting without design modification.

Color and Spectral Characteristics: The shift from orange-red (630nm) to red (627nm) represents a minor spectral variation within the red family. The SA08-11EWA provides higher brightness (8mcd versus 2.4mcd), which may require circuit-level current limiting adjustment but does not compromise functional compatibility.

Frequently Asked Questions (FAQ)

Q: Can the SA08-11EWA directly replace the LTS-3401LE without PCB modifications?

A: Yes. Both components use identical 18-DIP (0.600", 15.24mm) package configuration with matching pin counts and common anode architecture. Physical dimensions are within tolerance for direct mounting. No PCB layout changes are required.

Q: What is the difference between orange-red and red color specifications?

A: The LTS-3401LE emits orange-red light at 630nm peak wavelength, while the SA08-11EWA emits red light at 627nm peak wavelength. Both fall within the red spectrum family. The SA08-11EWA provides higher brightness (8mcd versus 2.4mcd), which may be visually noticeable in low-ambient-light applications.

Q: Are there electrical parameter differences that affect circuit design?

A: No. Both parts operate at identical 2V forward voltage and 20mA test current with 75mW maximum power dissipation. Existing current-limiting resistor calculations and power supply designs remain valid. The higher brightness of the SA08-11EWA may allow for reduced drive current if dimmer operation is acceptable.

Q: What is the inventory status for the substitute part?

A: The SA08-11EWA is in active production with 6281 pieces currently in stock, providing reliable supply availability. The original LTS-3401LE is obsolete with 652 pieces remaining in inventory.

Q: Are there any compliance or certification differences?

A: The SA08-11EWA is RoHS3 compliant and REACH unaffected. Both parts share identical ECCN and HTSUS classifications. The substitute meets current regulatory requirements for new designs and procurement.

Q: Can the SA08-11EWA be used in applications requiring the exact orange-red color of the LTS-3401LE?

A: The SA08-11EWA produces red light rather than orange-red. If the specific orange-red color is a functional requirement (such as in color-coded display systems), alternative substitutes with matching color specifications should be evaluated. If color variation is acceptable, the SA08-11EWA is fully compatible.