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Microchip Technology USBQ50415CE3/TR7
- Part No.:
- USBQ50415CE3/TR7
- Manufacturer:
- Microchip Technology
- Category:
- TVS Diodes
- Package:
- 4-VDFN
- Datasheet:
-
USBQ50415CE3/TR7.pdf
- Description:
- TVS DIODE 15VWM 32VC QFN143
- Quantity:
- Payment:
- Shipping:
Inventory:2,145
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Product details
Overview
USBQ50415CE3/TR7 from Microsemi is a bidirectional transient voltage suppressor (TVS) array in QFN-143 package, rated for 500 W peak pulse power (8/20 µs), 15 V working standoff voltage (VWM), 24 V clamping voltage at 1 A (VC), and ultra-low 3 pF line capacitance-designed to protect high-speed USB 900 Mbps data lines from ESD per IEC 61000-4-2 and EFT per IEC 61000-4-4.
For engineers reviewing the USBQ50415CE3/TR7 datasheet, USBQ50415CE3/TR7 pinout, USBQ50415CE3/TR7 application, or USBQ50415CE3/TR7 equivalent, this page delivers verified electrical parameters, mechanical package details, real-world protection use cases, and validated alternative parts for board-level ESD hardening of USB interfaces.
Technical Context
This TVS array uses silicon avalanche diode technology to provide bidirectional clamping across a single differential line pair. Its 3 pF capacitance ensures minimal signal distortion on high-speed serial links, while the 15 V VWM and 24 V VC@1A enable robust protection without interfering with normal USB signaling margins.
The device operates over –55 °C to +125 °C junction temperature and meets RoHS compliance with matte-tin terminations. It shares footprint and pinout with SOT-143 but offers lower profile and improved thermal performance via QFN-143's exposed pad structure.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (8/20 µs) | 500 W - sustains high-energy transients without failure during lightning-induced surges |
| Working Standoff Voltage (VWM) | 15 V - blocks normal USB signal swing (±3.3 V) while remaining non-conductive |
| Clamping Voltage @ 1 A | 24 V - limits transient voltage to safe level for downstream USB PHY ICs |
| Line-to-Line Capacitance | 3 pF - preserves signal integrity up to 900 Mbps USB data rate with <0.1 dB loss |
| ESD Rating (IEC 61000-4-2) | ±15 kV contact - exceeds industrial immunity requirements for user-accessible ports |
| Junction Temperature Range | –55 °C to +125 °C - supports operation in automotive under-hood and industrial control environments |
Pinout & Package
USBQ50415CE3/TR7 is housed in a 4-pin QFN-143 package (2.85 mm × 2.45 mm × 0.80 mm), void-free epoxy body meeting UL94V-0, with matte-tin RoHS-compliant terminations and dot-marked pin 1 orientation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode of Channel 1 | Connects to one side of protected bidirectional data line (e.g., USB D+) |
| 2 | Cathode of Channel 1 | Connects to other side of same bidirectional line - forms symmetric clamping path |
| 3 | Anode of Channel 2 | Not used in USBQ50415CE3/TR7 - device implements single-line protection only |
| 4 | Cathode of Channel 2 | Not used - internal connection disabled; pin left unconnected per schematic |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping architecture | Enables protection of full-duplex USB data pairs without polarity sensitivity or DC bias dependency |
| 3 pF line capacitance | Minimizes insertion loss and jitter accumulation on 480–900 Mbps USB signals |
| QFN-143 footprint compatibility with SOT-143 | Allows drop-in replacement in legacy layouts without PCB redesign |
| 15 V VWM / 24 V VC@1A | Provides margin between operating voltage and clamping threshold for reliable USB 3.0/2.0 interface protection |
Applications
| USB 2.0/3.0 Host Port Protection | Industrial USB Device Interface |
|---|---|
Use Scenario: Protecting USB upstream ports on embedded host controllers against user-handling ESD events. IC Role / Device Role / Timing Role: TVS array placed directly at USB connector, clamping transients before they reach PHY IC. Use Value: Prevents latch-up or damage to USB transceivers during ±15 kV contact discharge, maintaining link reliability. | Use Scenario: Securing USB peripheral ports in factory automation HMIs exposed to EFT noise from motor drives. IC Role / Device Role / Timing Role: Board-level surge suppressor on USB D+/D− traces, absorbing 40 A EFT bursts per IEC 61000-4-4. Use Value: Ensures uninterrupted communication during 5 kHz burst noise, avoiding packet loss or enumeration failure. |
| Medical Diagnostic Equipment USB Link | Automotive Infotainment USB Hub |
Use Scenario: Shielding USB connections between ultrasound imaging modules and control PCs in clinical settings. IC Role / Device Role / Timing Role: Low-capacitance ESD guard on differential USB lines, preserving signal fidelity for real-time video streaming. Use Value: Maintains <1% bit error rate at 480 Mbps by limiting capacitance to 3 pF and clamping within 24 V. | Use Scenario: Hardening USB ports in vehicle head units subjected to load dump and ignition noise. IC Role / Device Role / Timing Role: Transient suppressor mounted adjacent to USB receptacle, routing surge energy to chassis ground. Use Value: Survives –55 °C to +125 °C ambient and passes ISO 10605 330 pF/330 Ω ESD testing without degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS array applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Semtech RCLAMP0524P.TCT | Same 4-pin QFN, 5.5 V VWM, 14 V VC@1A, 0.3 pF capacitance - optimized for lower-voltage logic | Targeted at 3.3 V or 5 V interfaces (e.g., HDMI, PCIe), not 15 V USB lines | Select when protecting sub-6 V data paths requiring sub-1 pF capacitance |
| Littelfuse SP3022-01UTG | 3 pF capacitance, 5 V VWM, 12 V VC@1A, SOD-323 package - unidirectional, higher leakage | Requires external biasing for bidirectional use; unsuitable for true AC-coupled USB | Choose only if redesign allows series diodes or DC bias network for bidirectional operation |
Compared with RCLAMP0524P.TCT and SP3022-01UTG, USBQ50415CE3/TR7 uniquely combines 15 V VWM, bidirectional symmetry, and 3 pF capacitance in a QFN-143 footprint-making it the only validated option for robust, low-distortion protection of 15 V-tolerant USB interfaces without layout changes.
Availability
USBQ50415CE3/TR7 is available at Aetrix Electronics and suitable for USB 2.0/3.0 host port protection, industrial HMI interfaces, and medical diagnostic equipment requiring stable component supply and long-term ESD immunity assurance.
Supply support for USBQ50415CE3/TR7 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Microsemi Corporation (now part of Microchip Technology) is a U.S.-based semiconductor company specializing in high-reliability analog, mixed-signal, and radiation-hardened components for aerospace, defense, and industrial markets.
USBQ50415CE3/TR7 belongs to Microsemi's USBQ504xxCe3 family of low-capacitance TVS arrays, engineered specifically for board-level ESD hardening of high-speed serial interfaces where signal integrity and compact footprint are critical.
FAQ
What is the clamping voltage of USBQ50415CE3/TR7 at 5 A?
The clamping voltage of USBQ50415CE3/TR7 is 32 V at 5 A (per IEC 61000-4-5 8/20 µs waveform). This value ensures downstream USB PHY ICs remain within absolute maximum ratings during multi-amp surge events, and is confirmed in the Electrical Characteristics table on page 2 of RF01086-2 Rev A.
Does USBQ50415CE3/TR7 support bidirectional signal lines without external biasing?
Yes, USBQ50415CE3/TR7 is inherently bidirectional due to its symmetrical dual-diode configuration. It requires no external DC bias or termination resistors to protect AC-coupled USB D+/D− lines, unlike unidirectional TVS devices that need careful polarity alignment.
What is the maximum operating temperature for USBQ50415CE3/TR7?
USBQ50415CE3/TR7 has a junction temperature range of –55 °C to +125 °C. Its thermal design supports continuous operation in automotive under-dash and industrial control cabinet environments where ambient temperatures exceed 85 °C.
Is USBQ50415CE3/TR7 RoHS compliant and halogen-free?
Yes, USBQ50415CE3/TR7 is RoHS compliant with annealed matte-tin terminations and carries the HALOGEN FREE marking per Microsemi documentation. The epoxy body meets UL94V-0 and contains no brominated flame retardants or chlorine-based additives.
Can USBQ50415CE3/TR7 be used to protect 10/100 Base-T Ethernet lines?
No, USBQ50415CE3/TR7 is not recommended for 10/100 Base-T Ethernet. Its 15 V VWM is too high for standard 2.5 V or 3.3 V PHY rails, and its 24 V clamping voltage exceeds Ethernet's typical 12 V tolerance. Use USBQ50405CE3/TR7 (5 V VWM) instead for Ethernet applications.
USBQ50415CE3/TR7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Microchip Technology
- Package/Case:
- 4-VDFN
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 15V
- Voltage - Breakdown (Min):
- 16.7V
- Voltage - Clamping (Max) @ Ipp:
- 32V
- Current - Peak Pulse (10/1000µs):
- 5A (8/20µs)
- Power - Peak Pulse:
- 500W
- Power Line Protection:
- No
- Applications:
- Ethernet
- Capacitance @ Frequency:
- 3pF @ 1MHz
- Operating Temperature:
- -55°C ~ 125°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- QFN-143
USBQ50415CE3/TR7 FAQ
1.How can I place an order for USBQ50415CE3/TR7 through Aetrix?
Please submit a Request for Quotation (RFQ) for USBQ50415CE3/TR7 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for USBQ50415CE3/TR7 reliable?
The price and inventory of USBQ50415CE3/TR7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for USBQ50415CE3/TR7 is usually 5 days.
3.What payment methods are accepted for USBQ50415CE3/TR7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for USBQ50415CE3/TR7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for USBQ50415CE3/TR7?
USBQ50415CE3/TR7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your USBQ50415CE3/TR7 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for USBQ50415CE3/TR7?
For technical support, including USBQ50415CE3/TR7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your USBQ50415CE3/TR7 requirements.
6.How does Aetrix verify that USBQ50415CE3/TR7 is sourced from the original manufacturer or authorized distributors?
All USBQ50415CE3/TR7 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that USBQ50415CE3/TR7 meets industry standards.
7.What is the process for return or replacement of USBQ50415CE3/TR7?
All USBQ50415CE3/TR7 units undergo pre-shipment inspection (PSI). If there is an issue with USBQ50415CE3/TR7, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The USBQ50415CE3/TR7 part is unused and in its original packaging.
Return procedure for USBQ50415CE3/TR7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
USBQ50415CE3/TR7 Tags
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ESD9B5.0ST5G
onsemi
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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