LTS-4301E 7-Segment LED Display - Equivalent & Substitute Parts

Part Overview

The LTS-4301E is a single-character 7-segment LED display module manufactured by Lite-On Inc., designed for numeric and alphanumeric display applications. This common cathode display operates at 2V forward voltage with a 20mA test current and features an orange-red emission color at 630nm peak wavelength. The component is housed in a 10-DIP package with dimensions of 0.508" H × 0.382" W × 0.276" D (12.90mm × 9.70mm × 7.00mm). The product maintains Active status and is RoHS3 compliant. Substitute parts are identified when equivalent functional performance can be achieved within the allowed electrical and mechanical parameter ranges for this display category.

Substiute Parts

LTS-4301E

Lite-On Inc.In Stock: 833LTS-4301E Datasheet

Current PartRFQ

HDSP-F103

Broadcom LimitedIn Stock: 1681HDSP-F103 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LTS-4301E are identified based on compatibility within the following critical parameters:

• Display Type & Configuration: 7-segment, single character, common cathode architecture
• Package Compatibility: 10-DIP (0.300", 7.62mm) form factor
• Electrical Operating Range: Forward voltage and test current within acceptable design margins
• Physical Envelope: Digit size and overall dimensions permitting direct mechanical replacement
• Compliance & Status: Active product status with RoHS3 compliance

The HDSP-F103 (Broadcom Limited) qualifies as a substitute based on matching display type, common cathode configuration, 10-DIP package, and active product status. Electrical parameters (1.7V forward voltage, 5mA test current) and optical characteristics (red color, 645nm wavelength) differ from the LTS-4301E but remain within the allowable parameter space for 7-segment LED display substitution in this category.

Parameter Comparison

Engineering Selection Recommendations

Both the LTS-4301E and HDSP-F103 maintain Active product status and RoHS3 compliance, supporting long-term availability and regulatory conformance in production environments. The LTS-4301E operates at higher forward voltage (2V) and test current (20mA) with orange-red emission (630nm), while the HDSP-F103 operates at lower forward voltage (1.7V) and test current (5mA) with red emission (645nm). The HDSP-F103 exhibits lower power dissipation (37mW maximum versus 75mW) and higher brightness (3.9mcd versus 2.2mcd). Both components share identical 10-DIP packaging and common cathode configuration, enabling direct socket compatibility. Selection between these parts depends on circuit design requirements for forward voltage, current draw, color perception, and brightness specifications.

Frequently Asked Questions (FAQ)

Q: Can the HDSP-F103 be used as a direct replacement for the LTS-4301E in existing designs?

A: Both parts share 10-DIP package compatibility and common cathode configuration. However, the HDSP-F103 operates at lower forward voltage (1.7V versus 2V) and lower test current (5mA versus 20mA). Circuit designs must accommodate these electrical differences through appropriate current-limiting resistor selection and voltage supply considerations.

Q: What are the key differences in optical performance between these parts?

A: The LTS-4301E emits orange-red light at 630nm peak wavelength with 2.2mcd brightness. The HDSP-F103 emits red light at 645nm peak wavelength with 3.9mcd brightness. Color perception and brightness output will differ between the two parts in visual applications.

Q: Are both parts suitable for new designs?

A: Both the LTS-4301E and HDSP-F103 maintain Active product status, supporting use in new designs. RoHS3 compliance on both parts ensures regulatory conformance for applicable markets and applications.

Q: How do power dissipation differences affect circuit design?

A: The HDSP-F103 dissipates a maximum of 37mW compared to 75mW for the LTS-4301E. Lower power dissipation in the HDSP-F103 reduces thermal load and may simplify thermal management in high-density display applications.

Q: Are the physical dimensions identical between these parts?

A: Physical dimensions are similar but not identical. The LTS-4301E measures 0.508" H × 0.382" W × 0.276" D, while the HDSP-F103 measures 0.508" H × 0.385" W × 0.250" D. Both fit the 10-DIP package envelope, but minor dimensional variations exist in width and depth.