LED CBI 3MM BI-LVL RED RA (553-0111)

Part Overview

The VCC 553-0111 is a LED Circuit Board Indicator featuring a dual-level red configuration (2 High) with a 3mm T-1 through-hole right-angle mounting. This component is designed for applications requiring compact, high-visibility status indication on circuit boards. The part is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement continuity.

Substiute Parts

553-0111

Visual Communications Company - VCCIn Stock: 824553-0111 Datasheet

Current PartRFQ

SSF-LXH240IID

Lumex Opto/Components Inc.In Stock: 6015SSF-LXH240IID Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the VCC 553-0111 is based on the following critical parameters that must remain compatible:

Mandatory Compatibility Parameters:

• Configuration: 2 High (dual-level red LED)
• Color: Red (x 2)
• Voltage Rating: 2V
• Mounting Type: Through Hole, Right Angle
• Lens Style: Round with Domed Top
• RoHS3 Compliance
• MSL Rating: 1 (Unlimited)

Allowable Variation Parameters:

• Lens Size: 3mm to 2.90mm (minor dimensional tolerance)
• Current: 10mA to 20mA (within circuit design margins)
• Wavelength - Peak: 650nm to 635nm (red spectrum range)
• Millicandela Rating: 10mcd to 15mcd (brightness variation acceptable)
• Viewing Angle: 90° to 80° (minor optical angle variation)
• Lens Type: Clear to Diffused/Tinted (optical property variation)

The Lumex Opto/Components Inc. SSF-LXH240IID meets all mandatory compatibility criteria while operating within allowable variation parameters.

Parameter Comparison

Engineering Selection Recommendations

The Lumex Opto/Components Inc. SSF-LXH240IID is a direct functional substitute for the obsolete VCC 553-0111. Selection of this substitute is supported by the following factors:

Product Status: The SSF-LXH240IID maintains Active product status, ensuring long-term availability and supply chain continuity compared to the Obsolete 553-0111.

Regulatory Compliance: Both components maintain identical ROHS3 compliance, REACH Unaffected status, and EAR99 ECCN classification, confirming regulatory equivalence for procurement and deployment.

Electrical Compatibility: The 2V voltage rating is identical. The current specification increases from 10mA to 20mA; circuit designs must accommodate this higher current draw through appropriate series resistor adjustment.

Optical Performance: The wavelength shift from 650nm to 635nm remains within the red spectrum range. The brightness increase from 10mcd to 15mcd provides enhanced visibility. The viewing angle reduction from 90° to 80° represents a minor optical characteristic change suitable for most circuit board indicator applications.

Mechanical Compatibility: The lens size reduction from 3mm to 2.90mm is within standard manufacturing tolerances for T-1 form factor components. The right-angle through-hole mounting configuration is identical, ensuring PCB layout compatibility.

Frequently Asked Questions (FAQ)

Q: Can the SSF-LXH240IID be used as a direct pin-for-pin replacement for the VCC 553-0111?

A: Yes. Both components feature identical through-hole right-angle mounting configurations and 2V voltage ratings. PCB footprints are compatible. However, the circuit series resistor must be recalculated to accommodate the increased current specification (20mA vs. 10mA).

Q: What is the impact of the wavelength difference between 650nm and 635nm?

A: Both wavelengths fall within the red spectrum range. The 635nm wavelength of the SSF-LXH240IID produces a slightly deeper red appearance compared to the 650nm of the 553-0111. This difference is visually subtle and acceptable for standard indicator applications.

Q: Does the 2.90mm lens size difference affect PCB layout?

A: The 2.90mm lens diameter is within standard T-1 form factor tolerances. No PCB layout modifications are required. The component will fit existing mounting holes designed for 3mm T-1 LEDs.

Q: Why does the SSF-LXH240IID have a higher current rating (20mA vs. 10mA)?

A: The increased current specification reflects the Lumex component's design characteristics. Circuit designs must include appropriate series resistor sizing to limit current to the desired operating level. The 2V voltage rating remains constant.

Q: Are there any compliance or certification differences between these components?

A: No. Both components maintain identical ROHS3 compliance, REACH Unaffected status, MSL Rating 1, and EAR99 ECCN classification. Regulatory and environmental compliance is equivalent.

Q: What is the significance of the Diffused, Tinted lens type on the SSF-LXH240IID?

A: The diffused, tinted lens provides light scattering and color enhancement compared to the clear lens of the 553-0111. This results in improved visibility and a more uniform light distribution across the viewing angle, beneficial for circuit board indicator applications.

Q: Is the viewing angle reduction from 90° to 80° significant?

A: The 10-degree reduction is minor. The 80° viewing angle of the SSF-LXH240IID remains suitable for most circuit board indicator applications where the LED is viewed from typical angles relative to the PCB plane.