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USB2502-AEZG-TR Equivalent & Substitute Parts
Part Overview
The USB2502-AEZG-TR is a USB 2.0 Hub Controller manufactured by Microchip Technology, designed for 2-port hub applications with I2C, SMBus, Serial, and USB interfaces. The device is packaged in a 36-QFN (6x6) form factor with exposed pad.
This part has reached obsolete status, making it necessary to identify functionally compatible substitute components for ongoing design requirements and production continuity. The USB2512-AEZG serves as the primary active alternative from the same manufacturer family.
Substiute Parts
Key Parameters
| Parameter | USB2502-AEZG-TR |
|---|---|
| Manufacturer | Microchip Technology |
| Protocol | USB |
| Function | Hub Controller |
| Standards | USB 2.0 |
| Port Count | 2-Port |
| Package / Case | 36-VFQFN Exposed Pad |
| Supplier Device Package | 36-QFN (6x6) |
| Operating Temperature | 0°C ~ 70°C (TA) |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
| Product Status | Obsolete |
Substitute Part Grouping Explanation
Substitution eligibility for the USB2502-AEZG-TR is determined by the following critical parameters:
- Manufacturer & Product Family: Same manufacturer (Microchip Technology) ensures design continuity and firmware compatibility
- Function & Protocol: Hub Controller function with USB 2.0 protocol compliance
- Port Configuration: 2-port hub architecture
- Package Compatibility: Identical 36-QFN (6x6) footprint with exposed pad
- Operating Temperature Range: Matching or wider temperature specification (0°C ~ 70°C)
- Moisture Sensitivity Level: Equivalent MSL rating (3) for handling and storage requirements
The USB2512-AEZG meets all substitution criteria as an active product with identical mechanical and functional specifications.
Parameter Comparison
| Parameter | USB2502-AEZG-TR | USB2512-AEZG | Compatibility |
|---|---|---|---|
| Manufacturer | Microchip Technology | Microchip Technology | Identical |
| Protocol | USB | USB | Identical |
| Function | Hub Controller | Hub Controller | Identical |
| Standards | USB 2.0 | USB 2.0 | Identical |
| Package / Case | 36-VFQFN Exposed Pad | 36-VFQFN Exposed Pad | Identical |
| Supplier Device Package | 36-QFN (6x6) | 36-QFN (6x6) | Identical |
| Operating Temperature | 0°C ~ 70°C | 0°C ~ 70°C | Identical |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) | 3 (168 Hours) | Identical |
| Voltage - Supply | 1.62V ~ 1.98V, 3V ~ 3.6V | 3V ~ 3.6V | Subset (USB2512 narrower range) |
| Current - Supply | 170mA | 95mA | USB2512 lower consumption |
| Product Status | Obsolete | Active | USB2512 actively supported |
| RoHS Status | Not specified | ROHS3 Compliant | USB2512 certified |
Engineering Selection Recommendations
The USB2512-AEZG is the qualified substitute for the obsolete USB2502-AEZG-TR based on the following engineering criteria:
Mechanical Compatibility: Identical 36-QFN (6x6) package footprint and exposed pad configuration enable direct PCB layout reuse without redesign.
Functional Equivalence: Both devices implement USB 2.0 Hub Controller function with 2-port architecture, maintaining system-level performance requirements.
Supply Voltage Consideration: The USB2512-AEZG operates within the 3V ~ 3.6V range, which is a subset of the USB2502-AEZG-TR specification (1.62V ~ 1.98V, 3V ~ 3.6V). Design implementations using only the 3V ~ 3.6V supply range require no modification.
Regulatory Compliance: The USB2512-AEZG carries ROHS3 compliance and REACH unaffected status, meeting current environmental and regulatory requirements.
Product Availability: The USB2512-AEZG is in active production status with substantial inventory availability (55,309 pcs), ensuring supply chain continuity.
Power Efficiency: The USB2512-AEZG demonstrates reduced supply current (95mA vs. 170mA), providing improved power efficiency in hub applications.
Frequently Asked Questions (FAQ)
Q: Can the USB2512-AEZG be used as a direct replacement for the USB2502-AEZG-TR?
A: Yes, for designs operating within the 3V ~ 3.6V supply voltage range. The USB2512-AEZG maintains identical package footprint, port configuration, and USB 2.0 protocol compliance. If your design requires the 1.62V ~ 1.98V supply range, alternative solutions must be evaluated.
Q: What are the key differences between these two parts?
A: The primary differences are product status (obsolete vs. active), supply voltage range (USB2512 narrower), supply current (USB2512 lower at 95mA), and regulatory compliance (USB2512 ROHS3 certified). Functional and mechanical specifications remain equivalent.
Q: Is PCB redesign required when switching from USB2502-AEZG-TR to USB2512-AEZG?
A: No PCB redesign is required. Both devices use identical 36-QFN (6x6) packaging with exposed pad, allowing direct footprint compatibility and layout reuse.
Q: What is the moisture sensitivity level for both parts?
A: Both the USB2502-AEZG-TR and USB2512-AEZG carry MSL 3 rating (168 hours), requiring identical handling, storage, and reflow procedures.
Q: Are there any interface differences between these hub controllers?
A: The USB2502-AEZG-TR supports I2C, SMBus, Serial, and USB interfaces. The USB2512-AEZG supports USB interface. Designs relying on I2C, SMBus, or Serial communication require verification of alternative interface availability or design modification.
Q: What is the operating temperature range for both parts?
A: Both devices operate across 0°C ~ 70°C (TA), maintaining identical thermal specifications for industrial and commercial applications.
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