LE9500CBJCT Equivalent & Substitute Parts

Part Overview

The LE9500CBJCT is a Telecom IC Subscriber Line Interface Concept (SLIC) device manufactured by Microchip Technology, housed in a 28-PLCC package. This parallel interface component operates at 3.3V supply voltage with 40mA current consumption and is designed for telecommunications subscriber line applications.

The LE9500CBJCT has reached obsolete product status. Locating equivalent or substitute components is necessary to support legacy system maintenance, design updates, or inventory replenishment where original stock is unavailable or depleted.

Substiute Parts

LE9500CBJCT

Microchip TechnologyIn Stock: 4939LE9500CBJCT Datasheet

Current PartRFQ

LE9541CUQCT

Microchip TechnologyIn Stock: 44142LE9541CUQCT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LE9500CBJCT is determined by the following critical parameters:

• Functional Equivalence: Both parts must perform the Subscriber Line Interface Concept (SLIC) function for telecommunications applications
• Supply Voltage Compatibility: 3.3V operation requirement
• Mounting Technology: Surface mount configuration
• Manufacturer Continuity: Microchip Technology maintains the product line
• Compliance Standards: ROHS3 compliance and EAR99 export classification

The LE9541CUQCT is identified as a manufacturer-recommended substitute. While this part transitions from parallel to serial interface architecture and changes package format from 28-PLCC to 40-QFN, it maintains functional equivalence as a SLIC device, operates at identical 3.3V supply voltage, and is manufactured by Microchip Technology with active product status and ROHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

The LE9541CUQCT is the manufacturer-recommended substitute for the obsolete LE9500CBJCT. Both components are manufactured by Microchip Technology and maintain ROHS3 compliance with EAR99 export classification.

Selection of the LE9541CUQCT requires design-level evaluation due to interface architecture differences. The transition from parallel to serial interface necessitates circuit redesign and firmware modification. The package change from 28-PLCC to 40-QFN affects PCB layout and assembly processes. The increased moisture sensitivity level (MSL 3 versus MSL 1) impacts storage and handling requirements.

The active product status of the LE9541CUQCT ensures long-term availability and supply chain stability compared to the obsolete LE9500CBJCT.

Frequently Asked Questions (FAQ)

Q: Can the LE9541CUQCT be used as a direct pin-for-pin replacement for the LE9500CBJCT?

A: No. The LE9541CUQCT uses a different package format (40-QFN versus 28-PLCC) and employs serial interface architecture instead of parallel. Direct substitution requires PCB redesign and circuit modification.

Q: What are the primary differences between these two SLIC devices?

A: The main differences are interface type (parallel versus serial), package configuration (28-PLCC versus 40-QFN), and product lifecycle status (obsolete versus active). Both operate at 3.3V and perform SLIC functionality.

Q: Are both parts RoHS compliant?

A: Yes. Both the LE9500CBJCT and LE9541CUQCT are ROHS3 compliant and carry EAR99 export classification.

Q: What is the impact of the moisture sensitivity level difference?

A: The LE9500CBJCT has MSL 1 (unlimited moisture exposure tolerance), while the LE9541CUQCT has MSL 3 (168-hour moisture exposure limit). The LE9541CUQCT requires more stringent storage and handling protocols to prevent moisture absorption during manufacturing and assembly.

Q: Why is the LE9500CBJCT obsolete?

A: The LE9500CBJCT has reached end-of-life status. Microchip Technology has transitioned the SLIC product line to the LE9541 series, which incorporates serial interface technology and modern packaging standards.