LED Panel Indicator 5571703803 Equivalent & Substitute Parts

Part Overview

The Dialight 5571703803 is a panel-mounted LED indicator with a 250mm lead configuration, designed for 12V applications with yellow illumination. This component is classified as obsolete, necessitating identification of active equivalent parts for continued system support and new designs. The substitute part maintains functional compatibility within the 557 series while offering improved product status and compliance posture.

Substiute Parts

5571703803

DialightIn Stock: 10515571703803 Datasheet

Current PartRFQ

5571703803F

DialightIn Stock: 7965571703803F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The Dialight 5571703803F qualifies as a direct substitute based on the following criteria:

• Manufacturer continuity within Dialight product line
• Series alignment (557 series family)
• Functional category match (panel-mounted LED indicator)
• Yellow lens color specification maintained
• Moisture sensitivity level equivalence (MSL 1)
• Identical regulatory classification (ECCN EAR99, HTSUS 8541.41.0000)
• Active product status enabling ongoing supply chain support

The primary distinction involves packaging configuration and voltage specification variance, which are documented in the parameter comparison table below.

Parameter Comparison

Engineering Selection Recommendations

Selection between the main part and substitute should be based on the following factors:

Product Status Consideration: The 5571703803F maintains active product status, ensuring availability and manufacturer support. The 5571703803 is obsolete and subject to supply discontinuation.

Compliance Requirements: The 5571703803F achieves ROHS3 compliance, whereas the main part remains RoHS non-compliant. Systems requiring RoHS-compliant components must utilize the substitute part.

Supply Chain Continuity: Current inventory of 5571703803F (697 pcs) supports ongoing procurement, while 5571703803 inventory (1011 pcs) represents end-of-life stock.

Regulatory Alignment: Both parts maintain identical REACH and ECCN classifications, ensuring equivalent regulatory treatment in export and supply chain documentation.

Frequently Asked Questions (FAQ)

Q: Can 5571703803F directly replace 5571703803 in existing designs?

A: Both parts belong to the Dialight 557 series and share identical regulatory classifications (ECCN, HTSUS, REACH status). Substitution is supported within the series framework. Voltage and mechanical specifications should be evaluated against system requirements.

Q: What is the significance of the RoHS compliance difference?

A: The 5571703803F meets ROHS3 standards, while 5571703803 does not. New designs and systems subject to RoHS regulations must use the compliant substitute part.

Q: Are there inventory implications for selecting between these parts?

A: The 5571703803 represents obsolete inventory (1011 pcs available). The 5571703803F is an active product with 697 pcs in stock, providing longer-term supply assurance.

Q: Do both parts share the same moisture sensitivity classification?

A: Yes, both parts are classified as MSL 1 (Unlimited), indicating equivalent moisture handling and storage requirements.

Q: What is the base product relationship between these parts?

A: The 5571703803F references base product number 5571703, establishing direct lineage within the Dialight product family.