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LE9500DBJCT Equivalent & Substitute Parts
Part Overview
The LE9500DBJCT is a Telecom IC Subscriber Line Interface Concept (SLIC) device manufactured by Microchip Technology, housed in a 28-PLCC package. This interface component operates at 3.3V supply voltage with 40mA current consumption and features a parallel interface architecture for single-circuit applications.
The LE9500DBJCT 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
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer | Microchip Technology |
| Category | Interface |
| Function | Subscriber Line Interface Concept (SLIC) |
| Number of Circuits | 1 |
| Voltage - Supply | 3.3V |
| Current - Supply | 40mA |
| Mounting Type | Surface Mount |
| Supplier Device Package | 28-PLCC |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| ECCN | EAR99 |
| HTSUS | 8542.39.0001 |
Substitute Part Grouping Explanation
Substitution of the LE9500DBJCT is determined by the following critical parameters:
- Functional Equivalence: Both parts must implement Subscriber Line Interface Concept (SLIC) functionality for single-circuit telecom applications
- Supply Voltage Compatibility: 3.3V operation requirement
- Manufacturer Continuity: Microchip Technology as the original manufacturer
- Surface Mount Technology: Both parts use surface mount assembly methods
- Compliance Standards: ROHS3 compliance and EAR99 export classification maintained
The LE9541CUQCT qualifies as a manufacturer-recommended substitute. While it transitions from parallel to serial interface architecture and changes from 28-PLCC to 40-QFN packaging, it maintains functional SLIC capability, 3.3V supply voltage, single-circuit design, surface mount mounting, ROHS3 compliance, and EAR99 classification. The LE9541CUQCT is in active product status with substantial inventory availability.
Parameter Comparison
| Parameter | LE9500DBJCT | LE9541CUQCT |
|---|---|---|
| Manufacturer | Microchip Technology | Microchip Technology |
| Category | Interface | Interface |
| Function | Subscriber Line Interface Concept (SLIC) | Subscriber Line Interface Concept (SLIC) |
| Number of Circuits | 1 | 1 |
| Voltage - Supply | 3.3V | 3.3V |
| Mounting Type | Surface Mount | Surface Mount |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant |
| ECCN | EAR99 | EAR99 |
| HTSUS | 8542.39.0001 | 8542.39.0001 |
| Product Status | Obsolete | Active |
| Interface Type | Parallel | Serial |
| Supplier Device Package | 28-PLCC | 40-QFN |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | 3 (168 Hours) |
Engineering Selection Recommendations
The LE9541CUQCT is the manufacturer-recommended substitute for the obsolete LE9500DBJCT. Selection of this substitute is supported by:
- Product Status: The LE9541CUQCT maintains active product status with Microchip Technology, ensuring ongoing availability and technical support
- Compliance Alignment: Both parts maintain ROHS3 compliance and EAR99 export classification, satisfying regulatory requirements
- Functional Continuity: Both devices implement SLIC functionality at 3.3V supply voltage for single-circuit telecom interface applications
- Manufacturing Availability: The LE9541CUQCT has substantial inventory (44,100 pcs) compared to the obsolete LE9500DBJCT
Design integration requires accommodation of interface architecture change (parallel to serial) and package transition (28-PLCC to 40-QFN). These changes necessitate circuit board layout modifications and firmware or control logic updates to support serial communication protocols.
Frequently Asked Questions (FAQ)
Q: Can the LE9541CUQCT directly replace the LE9500DBJCT without design changes?
A: No. While both devices implement SLIC functionality at 3.3V, the LE9541CUQCT uses serial interface architecture versus the parallel interface of the LE9500DBJCT. Additionally, the package changes from 28-PLCC to 40-QFN, requiring circuit board redesign and control logic modifications.
Q: What are the key compatibility criteria for SLIC substitution?
A: Critical parameters include functional SLIC implementation, 3.3V supply voltage operation, single-circuit design, surface mount mounting technology, ROHS3 compliance, and EAR99 export classification.
Q: Why does the LE9541CUQCT have higher moisture sensitivity (MSL 3) compared to the LE9500DBJCT (MSL 1)?
A: Moisture sensitivity levels reflect package-specific characteristics. The 40-QFN package of the LE9541CUQCT requires 168-hour moisture control during storage and handling, while the 28-PLCC package of the LE9500DBJCT has unlimited moisture tolerance.
Q: Is the LE9541CUQCT available in Tape & Reel packaging?
A: Yes. The LE9541CUQCT is supplied in Tape & Reel (TR) packaging, suitable for automated assembly processes.
Q: What is the current supply specification for the LE9541CUQCT?
A: The current supply specification for the LE9541CUQCT is not provided in the available technical parameters.
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