LTS-3867H Equivalent & Substitute Parts

Part Overview

The LTS-3867H is a 7-segment LED display module manufactured by Lite-On Inc., designed for numeric and character display applications. This single-character red display operates at 2V forward voltage with a 20mA test current and features a common anode configuration in a 10-DIP package. The product is currently classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support and component procurement in legacy systems and new designs requiring compatible replacements.

Substiute Parts

LTS-3867H

Lite-On Inc.In Stock: 870LTS-3867H Datasheet

Current PartRFQ

HDSP-U211

Broadcom LimitedIn Stock: 21480HDSP-U211 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LTS-3867H is determined by strict alignment of the following critical parameters:

• Display Configuration: 7-segment, single character, common anode topology
• Electrical Specifications: 2V forward voltage and 20mA test current
• Package Type: 10-DIP (0.209", 5.30mm) dual-in-line package
• Display Size: 0.31" digit height
• Color: Red wavelength emission

The HDSP-U211 manufactured by Broadcom Limited meets all substitution criteria. Both devices share identical display topology, electrical operating parameters, package footprint, and digit size specifications. Physical dimension variations (width: 0.276" vs 0.280") remain within acceptable tolerance for standard PCB mounting applications using 10-DIP package specifications.

Parameter Comparison

Engineering Selection Recommendations

The HDSP-U211 is the direct functional equivalent for the obsolete LTS-3867H. Selection of the HDSP-U211 is supported by:

• Product Availability: HDSP-U211 maintains active product status with 21,400 units in stock, ensuring reliable procurement for both replacement and new design applications.
• Compliance Certifications: HDSP-U211 is RoHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component manufacturing and distribution.
• Electrical Compatibility: Identical forward voltage (2V) and test current (20mA) specifications ensure direct circuit compatibility without modification to existing driver circuitry or current-limiting resistor networks.
• Package Compatibility: Both devices utilize the 10-DIP (0.209", 5.30mm) package, enabling direct PCB footprint substitution without layout redesign.
• Performance Enhancement: The HDSP-U211 provides increased brightness (5.39mcd vs 1.6mcd) and operates within acceptable power dissipation limits (105mW vs 75mW), offering improved display visibility in the same form factor.

Frequently Asked Questions (FAQ)

Q: Can the HDSP-U211 be used as a direct replacement for the LTS-3867H without circuit modifications?

A: Yes. Both devices share identical electrical specifications (2V forward voltage, 20mA test current), common anode configuration, and 10-DIP package footprint. Direct substitution is possible without modifications to driver circuits, current-limiting resistors, or PCB layouts.

Q: What are the physical dimension differences between these two parts?

A: The LTS-3867H measures 0.276" in width, while the HDSP-U211 measures 0.280" in width. This 0.004" difference is within standard 10-DIP package tolerance and does not affect PCB mounting or mechanical assembly.

Q: How do the brightness specifications compare?

A: The HDSP-U211 provides 5.39mcd brightness compared to the LTS-3867H at 1.6mcd. This represents a significant brightness increase, which may require adjustment of current-limiting resistors if the original design was optimized for the lower brightness of the LTS-3867H to maintain consistent display intensity.

Q: Are there compliance or regulatory differences between these parts?

A: The HDSP-U211 is RoHS3 compliant and REACH unaffected, meeting current environmental and regulatory standards. The LTS-3867H, being obsolete, does not carry current compliance certifications. The HDSP-U211 is the appropriate choice for designs requiring compliance documentation.

Q: What is the wavelength difference between the two red displays?

A: The LTS-3867H operates at 650nm peak wavelength, while the HDSP-U211 operates at 635nm peak wavelength. Both wavelengths fall within the red spectrum and are visually indistinguishable in typical display applications.

Q: Is the HDSP-U211 available in the same packaging format?

A: Yes. The HDSP-U211 is supplied in tube packaging in the same 10-DIP (0.209", 5.30mm) case style as the LTS-3867H, ensuring compatibility with standard component handling and assembly processes.