LED Circuit Board Indicator 5912101102F Equivalent & Substitute Parts

Part Overview

The Dialight 5912101102F is a Surface Mount, Right Angle LED Circuit Board Indicator designed for single red light applications. This component operates at 1.8V with a 20mA current rating and delivers 18mcd brightness at a 40° viewing angle. The part is classified as Obsolete, making identification of functionally equivalent alternatives essential for ongoing production support and design continuity. Substitute parts must maintain compatibility across electrical specifications, mounting configuration, and mechanical form factor to ensure direct replacement capability.

Substiute Parts

5912101102F

DialightIn Stock: 9915912101102F Datasheet

Current PartRFQ

5912101102NF

DialightIn Stock: 10555912101102NF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the 5912101102F is determined by the following critical parameters:

• Electrical Compatibility: Current rating (20mA), voltage rating tolerance (1.8V nominal), and wavelength range (red spectrum, 645nm reference)
• Mechanical Compatibility: Surface Mount, Right Angle mounting configuration
• Optical Compatibility: Single configuration, 40° viewing angle, red color specification
• Regulatory Compliance: ROHS3 compliance, REACH Unaffected status, MSL 2 rating

The substitute part 5912101102NF meets these criteria while remaining within the Dialight 591 series family. Both components share identical current, mounting type, viewing angle, and compliance certifications. Variations in voltage rating (1.85V vs. 1.8V), millicandela output (34mcd vs. 18mcd), wavelength (655nm vs. 645nm), and lens geometry represent acceptable parameter ranges for this product category and do not preclude direct substitution in circuit board indicator applications.

Parameter Comparison

Engineering Selection Recommendations

The 5912101102NF qualifies as a direct substitute for the obsolete 5912101102F based on the following engineering criteria:

Electrical Compatibility: Both components operate at 20mA current with nominal voltage ratings within acceptable tolerance (1.8V vs. 1.85V). The voltage differential of 0.05V is within standard LED operating margins and does not compromise circuit functionality.

Mechanical Compatibility: Identical Surface Mount, Right Angle mounting configuration ensures PCB footprint compatibility and assembly process alignment without design modification.

Regulatory Compliance: Both parts maintain ROHS3 compliance and REACH Unaffected status, satisfying environmental and hazardous substance requirements. Identical MSL 2 ratings ensure equivalent moisture handling and storage protocols.

Product Status Advantage: The 5912101102NF carries Active product status, providing long-term supply chain availability and manufacturing support compared to the Obsolete status of the original part.

The increased millicandela output (34mcd vs. 18mcd) and wavelength shift (655nm vs. 645nm) represent enhanced optical performance within the red spectrum and do not introduce incompatibility in standard circuit board indicator applications.

Frequently Asked Questions (FAQ)

Q: Can the 5912101102NF be used as a direct replacement for the 5912101102F without PCB modification?

A: Yes. Both components share identical Surface Mount, Right Angle mounting configuration and 40° viewing angle specification. No PCB layout changes are required for substitution.

Q: What is the significance of the voltage rating difference (1.8V vs. 1.85V)?

A: The 0.05V difference falls within standard LED operating tolerance and does not affect circuit compatibility. Both components function within typical circuit board indicator voltage ranges.

Q: Why does the substitute part have higher millicandela output (34mcd vs. 18mcd)?

A: The 5912101102NF delivers enhanced brightness while maintaining identical current and viewing angle specifications. This represents improved optical performance and does not preclude substitution in applications requiring the original brightness level.

Q: Are there packaging differences between these parts?

A: The main part specifies packaging as "-" while the substitute is packaged in Strip format. This affects order and handling procedures but does not impact component functionality or PCB integration.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the 5912101102F and 5912101102NF are ROHS3 Compliant, REACH Unaffected, and carry identical MSL 2 ratings, ensuring equivalent regulatory and environmental compliance.

Q: What is the wavelength difference between 645nm and 655nm?

A: Both wavelengths fall within the red spectrum range. The 655nm wavelength of the substitute represents a slight shift toward the longer wavelength end of red, producing a marginally deeper red appearance while maintaining color category compatibility.