SSF-LXH555USBW Equivalent & Substitute Parts

Part Overview

The SSF-LXH555USBW is an LED Circuit Board Indicator manufactured by Lumex Opto/Components Inc. This single blue diffused LED features a 1.80mm diameter round domed lens, rated for 3.5V at 20mA operation, with a peak wavelength of 470nm and 40mcd brightness output. The component is mounted through-hole with right-angle configuration, designed for circuit board indicator applications. The part maintains Active product status and is ROHS3 compliant with REACH Unaffected classification.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the allowed parameter tolerances for LED circuit board indicator applications. Substitution becomes necessary when the primary part reaches end-of-life status, inventory constraints occur, or alternative sourcing is required while maintaining functional equivalence.

Substiute Parts

SSF-LXH555USBW

Lumex Opto/Components Inc.In Stock: 1018SSF-LXH555USBW Datasheet

Current PartRFQ

SSF-LXH103USBD

Lumex Opto/Components Inc.In Stock: 1541SSF-LXH103USBD Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SSF-LXH555USBW are identified based on strict electrical and mechanical compatibility criteria. The following parameters must align for valid substitution:

Electrical Equivalence Parameters:

• Color: Blue (470nm peak wavelength)
• Current Rating: 20mA
• Voltage Rating: 3.5V
• Configuration: Single LED

Mechanical Compatibility Parameters:

• Mounting Type: Through Hole, Right Angle
• Lens Type: Diffused
• Lens Style: Round with Domed Top

Compliance Parameters:

• RoHS Status: ROHS3 Compliant
• REACH Status: REACH Unaffected
• Manufacturer: Lumex Opto/Components Inc.

The SSF-LXH103USBD qualifies as a substitute part because it maintains identical electrical ratings (20mA, 3.5V, 470nm blue), identical mounting configuration (through-hole right-angle), identical lens characteristics (diffused, round domed top), and equivalent compliance certifications. The primary difference is lens size (3mm vs 1.80mm) and resulting brightness output (80mcd vs 40mcd), which represents a performance enhancement rather than a limitation for circuit board indicator applications.

Parameter Comparison

Engineering Selection Recommendations

Both the SSF-LXH555USBW and SSF-LXH103USBD maintain Active product status with identical compliance certifications (ROHS3 Compliant, REACH Unaffected). Both components are manufactured by Lumex Opto/Components Inc. and share identical electrical specifications (20mA, 3.5V, 470nm blue wavelength).

The SSF-LXH103USBD provides increased brightness output (80mcd versus 40mcd) due to its larger 3mm lens diameter compared to the 1.80mm lens of the main part. This brightness enhancement is compatible with circuit board indicator applications and does not introduce electrical incompatibility. The larger lens size may require verification of available board space during physical layout design.

Both parts carry ROHS3 compliance and REACH Unaffected status, confirming regulatory equivalence for applications subject to these standards. The SSF-LXH103USBD specifies Moisture Sensitivity Level 1 (Unlimited), indicating superior moisture handling characteristics.

Frequently Asked Questions (FAQ)

Q: Can the SSF-LXH103USBD directly replace the SSF-LXH555USBW in existing circuit designs?

A: Electrical substitution is valid. Both components operate at identical voltage (3.5V) and current (20mA) ratings with matching 470nm blue wavelength output. The primary consideration is physical board layout compatibility, as the SSF-LXH103USBD features a 3mm lens diameter versus the 1.80mm diameter of the original part. Verify available mounting hole spacing and clearance before implementation.

Q: What is the brightness difference between these two parts?

A: The SSF-LXH103USBD produces 80mcd output compared to 40mcd for the SSF-LXH555USBW. This 2x brightness increase results from the larger lens diameter and does not create electrical incompatibility. Circuit designs rated for 40mcd operation will function with the higher brightness output.

Q: Are both parts compliant with RoHS and REACH regulations?

A: Both the SSF-LXH555USBW and SSF-LXH103USBD are ROHS3 Compliant and REACH Unaffected, confirming regulatory equivalence for applications subject to these standards.

Q: What is the difference in lens type between these parts?

A: The SSF-LXH555USBW features a diffused lens, while the SSF-LXH103USBD features a diffused, tinted lens. Both maintain the round domed top style and 60° viewing angle. The tinted lens in the substitute part provides additional light diffusion characteristics.

Q: Does the SSF-LXH103USBD have better moisture handling?

A: The SSF-LXH103USBD specifies Moisture Sensitivity Level 1 (Unlimited), indicating unrestricted moisture exposure tolerance. The SSF-LXH555USBW does not specify an MSL rating in the provided data. For applications requiring documented moisture resistance, the SSF-LXH103USBD provides explicit specification.

Q: Are both parts available from the same manufacturer?

A: Both components are manufactured by Lumex Opto/Components Inc., ensuring consistent quality standards and supply chain reliability.