APT3216CGCK Green LED Equivalent & Substitute Parts

Part Overview

The APT3216CGCK is an active green surface mount LED manufactured by Kingbright, designed for indication applications in 1206 (3216 Metric) package format. This component operates at 2.1V forward voltage with a 50mcd brightness rating and 570nm dominant wavelength. The part is ROHS3 compliant and maintains active product status with 2200 units in current inventory. Substitute parts are identified to address supply chain requirements, packaging format preferences, or specific application parameter needs while maintaining functional equivalence within defined electrical and mechanical tolerances.

Substiute Parts

APT3216CGCK

KingbrightIn Stock: 2303APT3216CGCK Datasheet

Current PartRFQ

SML-LX1206SUGC-TR

Lumex Opto/Components Inc.In Stock: 44122SML-LX1206SUGC-TR Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the APT3216CGCK is determined by strict alignment across the following critical parameters:

Package Compatibility: Both main and substitute parts must use 1206 (3216 Metric) surface mount package format to ensure PCB footprint compatibility and reflow soldering process alignment.

Color and Wavelength: Green color specification with peak wavelength at 574nm establishes the optical output category. Substitute parts must maintain green indication functionality within the specified wavelength range.

Lens Transparency: Clear lens specification ensures consistent light transmission characteristics. Substitute parts must maintain clear lens transparency to preserve optical performance.

Electrical Parameters: Forward voltage (Vf) and test current define the LED operating point. Substitute parts operate within acceptable voltage and current ranges for the application circuit.

Compliance Standards: ROHS3 compliance and MSL rating (3, 168 Hours) are mandatory for manufacturing process compatibility and storage requirements.

The SML-LX1206SUGC-TR from Lumex Opto/Components Inc. qualifies as a substitute based on matching package format, color, lens transparency, peak wavelength, compliance certifications, and MSL rating. Variations in forward voltage (2.2V vs 2.1V), brightness rating (45mcd vs 50mcd), viewing angle (140° vs 120°), and physical dimensions remain within acceptable substitution parameters for indication applications.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection (APT3216CGCK): Kingbright APT3216CGCK remains the primary component choice when original specifications are required. This part maintains active product status with established supply inventory (2200 units) and delivers specified 50mcd brightness at 2.1V forward voltage. ROHS3 compliance and MSL 3 rating confirm manufacturing process compatibility.

Substitute Selection (SML-LX1206SUGC-TR): Lumex Opto/Components Inc. SML-LX1206SUGC-TR qualifies as a functional substitute when supply constraints affect primary part availability. This component maintains identical package format, color specification, peak wavelength, and compliance certifications. The substitute operates at 2.2V forward voltage (0.1V higher) and delivers 45mcd brightness (5mcd lower than primary). The wider 140° viewing angle provides enhanced light distribution compared to the primary part's 120° angle. Maximum height increases from 0.75mm to 1.10mm, requiring clearance verification in space-constrained applications. Tape & Reel packaging differs from the primary part's Cut Tape format.

Compliance Verification: Both parts maintain ROHS3 compliance and identical MSL 3 (168 Hours) moisture sensitivity ratings, confirming compatibility with standard surface mount assembly processes and storage protocols.

Frequently Asked Questions (FAQ)

Q: Can SML-LX1206SUGC-TR directly replace APT3216CGCK on existing PCBs?

A: Yes, for standard indication applications. Both parts use identical 1206 (3216 Metric) package footprints and surface mount mounting type. PCB layout compatibility is confirmed. However, the substitute part's maximum height of 1.10mm (versus 0.75mm for the primary part) requires clearance verification in applications with height restrictions or component stacking requirements.

Q: What is the impact of the 0.1V forward voltage difference?

A: The SML-LX1206SUGC-TR operates at 2.2V compared to the APT3216CGCK's 2.1V. This 0.1V difference affects circuit current calculations and power dissipation. Applications with fixed current-limiting resistor designs will experience approximately 4.8% higher voltage drop across the substitute part. Circuit designers must verify that power supply voltage and current-limiting resistor values remain within acceptable operating ranges for the substitute part.

Q: Does the 5mcd brightness difference affect application performance?

A: The SML-LX1206SUGC-TR delivers 45mcd versus the primary part's 50mcd, representing a 10% reduction in brightness. For indication applications requiring minimum brightness thresholds, this difference must be evaluated against specific visibility requirements. The substitute part's wider 140° viewing angle may compensate for reduced brightness in applications requiring broader light distribution.

Q: Are packaging format differences significant?

A: The primary part (APT3216CGCK) is supplied in Cut Tape (CT) & Digi-Reel® format, while the substitute (SML-LX1206SUGC-TR) uses Tape & Reel (TR) packaging. Both formats are compatible with standard pick-and-place assembly equipment. Format selection depends on production volume and assembly line configuration. Cut Tape format suits lower-volume or manual assembly operations, while Tape & Reel format optimizes high-volume automated assembly.

Q: Are both parts suitable for the same storage and handling conditions?

A: Yes. Both parts maintain identical MSL 3 (168 Hours) moisture sensitivity ratings and ROHS3 compliance. Storage conditions, humidity control, and reflow soldering parameters remain consistent between the primary and substitute parts.

Q: What is the wavelength specification significance?

A: Both parts specify 574nm peak wavelength, confirming identical green color output within the visible spectrum. This wavelength alignment ensures consistent optical appearance and human perception of the LED indication across both part options.