RPG1111C-11-TR LED Green Diffused SMD Equivalent & Substitute Parts

Part Overview

The RPG1111C-11-TR is a green diffused surface mount LED manufactured by Stanley Electric Co, designed for indication applications in 0603 (1608 Metric) package format. This component operates at a forward voltage of 2.1V with a test current of 20mA and produces a dominant wavelength of 567nm with a brightness rating of 9.8mcd. The part is classified as Obsolete, necessitating identification of functionally equivalent alternatives for ongoing production and maintenance applications. Substitute parts must maintain compatibility with the 0603 package footprint, surface mount assembly process, and core indication functionality while meeting current product availability and compliance requirements.

Substiute Parts

RPG1111C-11-TR

Stanley Electric CoIn Stock: 1635RPG1111C-11-TR Datasheet

Current PartRFQ

VFHD1111C-3B72B-TR

Stanley Electric CoIn Stock: 1725VFHD1111C-3B72B-TR Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RPG1111C-11-TR are identified based on strict compatibility with the following parameters:

Package Compatibility: All substitutes must use the 0603 (1608 Metric) package with surface mount configuration to ensure PCB footprint and assembly process compatibility.

Electrical Operating Range: Substitute parts must operate within the standard LED forward voltage range (1.9V to 2.1V) and test current specification of 20mA to maintain circuit design compatibility without requiring redesign of current-limiting resistor networks.

Optical Characteristics: Substitutes must maintain diffused lens transparency and operate within the green to yellow-green wavelength spectrum (560nm to 575nm dominant wavelength) to preserve indication function and visual consistency.

Regulatory Compliance: All substitutes must maintain ROHS3 compliance and REACH Unaffected status to satisfy environmental and regulatory requirements equivalent to the original part.

Product Status: Active product status is preferred to ensure long-term availability and supply chain continuity.

The VFHD1111C-3B72B-TR meets these substitution criteria as a manufacturer-recommended alternative from Stanley Electric Co.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: VFHD1111C-3B72B-TR

The VFHD1111C-3B72B-TR is designated as the manufacturer-recommended substitute for the obsolete RPG1111C-11-TR. This part maintains identical package dimensions (0603/1608 Metric), surface mount configuration, and test current specification (20mA), ensuring direct PCB footprint compatibility and assembly process compatibility without layout modifications.

Compliance Status: Both parts maintain ROHS3 compliance and REACH Unaffected status, satisfying equivalent environmental and regulatory requirements. The substitute part carries Active product status, ensuring long-term supply chain availability and manufacturing continuity.

Electrical Compatibility: The forward voltage differential (2.1V main part versus 1.9V substitute) represents a 0.2V reduction. This variance falls within standard LED circuit design tolerances and requires verification of series resistor values in the application circuit. The identical 20mA test current specification ensures brightness and power consumption characteristics remain within design parameters.

Optical Characteristics: The substitute part operates at 572nm dominant wavelength (compared to 567nm for the main part), representing a shift within the green to yellow-green spectrum. Both parts maintain diffused lens transparency. The substitute part provides increased brightness (43mcd versus 9.8mcd), which may affect visual indication intensity in the application. The specified 140° viewing angle for the substitute part provides additional optical performance data not available for the main part.

Moisture Sensitivity: The substitute part carries MSL 3 (168 Hours) compared to MSL 4 (72 Hours) for the main part, indicating improved moisture tolerance and more favorable storage and handling requirements during assembly operations.

Frequently Asked Questions (FAQ)

Q: Can the VFHD1111C-3B72B-TR be used as a direct replacement for the RPG1111C-11-TR without PCB modifications?

A: Yes. Both parts use identical 0603 (1608 Metric) package dimensions (1.60mm L x 0.80mm W x 0.80mm H) and surface mount configuration. PCB footprint and assembly process compatibility are maintained without layout changes. Circuit design verification is required to confirm series resistor values accommodate the 0.2V forward voltage difference.

Q: What is the impact of the wavelength shift from 567nm to 572nm?

A: The wavelength shift represents movement within the green to yellow-green spectrum. Both wavelengths fall within the standard green LED indication range. Visual color perception may shift slightly toward yellow-green. Application-specific color matching requirements must be evaluated based on end-use indication function.

Q: How does the increased brightness (43mcd versus 9.8mcd) affect circuit design?

A: The brightness increase is determined by the 20mA test current specification common to both parts. Brightness differences result from optical design variations in the lens and die characteristics. Circuit current limiting remains unchanged at 20mA. Visual indication intensity will increase in the application; this may require evaluation for glare or visibility balance in the end-use environment.

Q: Are there any assembly process differences between the main part and substitute?

A: No significant assembly process differences exist. Both parts are surface mount components in 0603 package format. The substitute part carries improved moisture sensitivity (MSL 3 versus MSL 4), providing more favorable storage and handling conditions. Standard SMD assembly equipment and processes apply to both parts.

Q: What is the significance of the forward voltage difference (2.1V versus 1.9V)?

A: The 0.2V difference is within normal LED manufacturing tolerances and standard circuit design margins. Series resistor values in the application circuit must be verified to ensure proper current limiting at the substitute part's forward voltage. This typically requires recalculation of the resistor value using Ohm's Law: R = (Vsupply - Vf) / Iled. The change does not affect package compatibility or assembly process.

Q: Is the VFHD1111C-3B72B-TR suitable for applications requiring exact color matching to the original RPG1111C-11-TR?

A: The wavelength shift from 567nm to 572nm represents a movement within the green spectrum toward yellow-green. Applications requiring precise color matching to the original 567nm specification should evaluate the visual impact of this shift. The substitute part's yellow-green characteristic may be visually distinguishable in side-by-side comparison or in applications with strict color consistency requirements.

Q: What are the long-term supply advantages of using the VFHD1111C-3B72B-TR?

A: The substitute part carries Active product status, indicating current manufacturing and ongoing availability. The original RPG1111C-11-TR is classified as Obsolete, indicating discontinued production and limited remaining inventory. Transitioning to the Active substitute part ensures long-term supply chain continuity and reduces risk of component unavailability in future production runs.