FHA3C64X-H Orange LED 3mm Through-Hole Equivalent & Substitute Parts

Part Overview

The FHA3C64X-H is a 3mm through-hole orange LED manufactured by Stanley Electric Co, designed for discrete indication applications with a dominant wavelength of 603nm. This component is classified as obsolete, making equivalent substitute parts necessary for ongoing production and maintenance applications. The part operates at a forward voltage of 1.9V with a test current of 10mA and delivers 350mcd brightness output through a clear domed lens.

Substiute Parts

FHA3C64X-H

Stanley Electric CoIn Stock: 992FHA3C64X-H Datasheet

Current PartRFQ

SLI-343D8C3F

Rohm SemiconductorIn Stock: 25396SLI-343D8C3F Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the FHA3C64X-H is determined by the following critical parameters:

Optical Compatibility: Color (orange), lens transparency (clear), and lens size (3.10mm diameter) must match to maintain visual indication consistency and mechanical fit within existing PCB layouts.

Electrical Compatibility: Forward voltage (Vf), test current, and wavelength characteristics must fall within acceptable ranges for the application circuit. The dominant wavelength range of 603-608nm ensures consistent orange color perception.

Mechanical Compatibility: Through-hole radial mounting configuration and maximum height constraints ensure proper insertion into existing PCB designs without modification.

Regulatory Compliance: RoHS compliance status and REACH unaffected designation must be maintained for product certification requirements.

The SLI-343D8C3F from Rohm Semiconductor qualifies as a substitute based on matching color, lens transparency, lens size, mounting type, and regulatory compliance. Differences in forward voltage (2.2V vs 1.9V), test current (20mA vs 10mA), brightness (680mcd vs 350mcd), and maximum height (5.60mm vs 3.30mm) require circuit-level evaluation for specific applications.

Parameter Comparison

Engineering Selection Recommendations

For Direct Substitution: The SLI-343D8C3F is suitable as a substitute for the obsolete FHA3C64X-H in applications where the following conditions are met:

Circuit design accommodates the higher forward voltage (2.2V vs 1.9V) and increased test current (20mA vs 10mA). This requires verification of current-limiting resistor values and power supply headroom.

PCB layout permits the increased maximum height of 5.60mm compared to the original 3.30mm specification. Physical clearance above the component must be confirmed.

Application benefits from or accepts the increased brightness output (680mcd vs 350mcd). In space-constrained or brightness-sensitive designs, this may require circuit modification.

Regulatory Compliance: Both parts maintain RoHS compliance and REACH unaffected status, satisfying environmental and regulatory requirements for EU and equivalent markets.

Product Status Consideration: The SLI-343D8C3F carries active product status from Rohm Semiconductor, ensuring long-term availability and supply chain stability compared to the obsolete FHA3C64X-H.

Frequently Asked Questions (FAQ)

Q: Can the SLI-343D8C3F be used as a direct drop-in replacement for the FHA3C64X-H?

A: Physical drop-in compatibility is limited by the increased maximum height (5.60mm vs 3.30mm). PCB clearance must be verified. Electrical compatibility requires circuit evaluation due to higher forward voltage and test current specifications.

Q: What are the key differences between these two parts?

A: The primary differences are forward voltage (1.9V vs 2.2V), test current (10mA vs 20mA), brightness output (350mcd vs 680mcd), and maximum height (3.30mm vs 5.60mm). Wavelength characteristics remain similar (603nm vs 605nm dominant wavelength).

Q: Are both parts RoHS compliant?

A: Yes. The FHA3C64X-H is RoHS Compliant, and the SLI-343D8C3F is ROHS3 Compliant. Both meet current environmental standards.

Q: What is the impact of the higher forward voltage on circuit design?

A: The 0.3V increase in forward voltage (1.9V to 2.2V) affects the voltage drop across current-limiting resistors. Existing resistor values may require adjustment to maintain proper LED current and brightness levels.

Q: Does the higher brightness of the SLI-343D8C3F affect visual compatibility?

A: Both parts produce orange indication with clear lenses and matching 3.10mm lens diameters. The higher brightness (680mcd vs 350mcd) may be perceptually brighter but maintains the same color characteristics. Application-specific brightness requirements must be evaluated.

Q: What is the packaging difference between these parts?

A: The FHA3C64X-H is supplied in standard packaging, while the SLI-343D8C3F is supplied in bulk packaging. This affects inventory management and component handling but does not impact electrical or mechanical performance.