LE9500DBJC Equivalent & Substitute Parts

Part Overview

The LE9500DBJC is a Telecom IC Subscriber Line Interface Concept (SLIC) manufactured by Microchip Technology, designed for telecommunications interface applications. This component operates at 3.3V supply voltage with a 40mA current requirement and is housed in a 28-PLCC surface mount package. The product is currently classified as obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations.

Substiute Parts

LE9500DBJC

Microchip TechnologyIn Stock: 3487LE9500DBJC Datasheet

Current PartRFQ

LE9541CUQC

Microchip TechnologyIn Stock: 63162LE9541CUQC Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LE9500DBJC is determined by the following critical parameters:

• Functional Equivalence: Both components must perform the Subscriber Line Interface Concept (SLIC) function for telecommunications applications
• Supply Voltage Compatibility: 3.3V supply voltage requirement must be maintained
• Number of Circuits: Single circuit configuration must be preserved
• Manufacturer Continuity: Microchip Technology as the original manufacturer ensures design compatibility and technical support consistency
• RoHS Compliance: ROHS3 compliance status ensures regulatory alignment across product generations

The LE9541CUQC qualifies as a manufacturer-recommended substitute based on these core parameters. However, interface type and package configuration differ between the main part and substitute, requiring design-level evaluation for specific applications.

Parameter Comparison

Engineering Selection Recommendations

The LE9541CUQC is designated as the manufacturer-recommended substitute for the obsolete LE9500DBJC. Both components maintain ROHS3 compliance and are manufactured by Microchip Technology, ensuring regulatory alignment and design continuity.

Key considerations for component selection:

• Product Status: The LE9541CUQC is active and in production, providing long-term availability and supply chain stability compared to the obsolete LE9500DBJC
• Interface Architecture: The transition from parallel to serial interface requires circuit-level design modifications and firmware adjustments
• Package Transition: Migration from 28-PLCC to 40-QFN packaging necessitates PCB layout redesign and mechanical accommodation
• Moisture Sensitivity: The LE9541CUQC requires controlled storage conditions (MSL 3, 168 hours) compared to unlimited storage for the LE9500DBJC

Frequently Asked Questions (FAQ)

Q: Can the LE9541CUQC be used as a direct pin-for-pin replacement for the LE9500DBJC?

A: No. The LE9541CUQC uses a 40-QFN package compared to the 28-PLCC package of the LE9500DBJC, and the interface changes from parallel to serial. PCB redesign and firmware modifications are required.

Q: Are both parts compliant with current environmental regulations?

A: Yes. Both the LE9500DBJC and LE9541CUQC are ROHS3 compliant, meeting current environmental standards for electronic components.

Q: What is the primary reason for substituting the LE9500DBJC?

A: The LE9500DBJC is classified as obsolete. The LE9541CUQC is the active, manufacturer-recommended alternative that maintains SLIC functionality while providing ongoing availability and support.

Q: Does the LE9541CUQC require special handling during storage?

A: Yes. The LE9541CUQC has an MSL rating of 3 (168 hours), requiring controlled humidity storage conditions. The LE9500DBJC has an MSL rating of 1 (unlimited), allowing standard storage without moisture control.

Q: Are both components manufactured by the same company?

A: Yes. Both the LE9500DBJC and LE9541CUQC are manufactured by Microchip Technology, ensuring consistent design philosophy and technical support.