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Nexperia USA Inc. PESD3V3X2UTR
- Part No.:
- PESD3V3X2UTR
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PESD3V3X2UTR.pdf
- Description:
- TVS DIODE 3.3VWM TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,824
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
PESD3V3X2UT from Nexperia is a dual-channel unidirectional ESD protection diode in SOT23 package, designed to safeguard two high-speed data lines with 3.3 V reverse standoff voltage, 0.83 pF typical capacitance, and 2.6 V clamping voltage at 8 A TLP. It delivers 18 kV IEC 61000-4-2 ESD immunity for USB2.0 and HDMI interfaces.
For engineers reviewing the PESD3V3X2UT datasheet, PESD3V3X2UT pinout, PESD3V3X2UT application, or PESD3V3X2UT equivalent, key selection criteria include ultra-low capacitance for signal integrity, common-anode dual-diode topology for compact line protection, and validated clamping performance under 8/20 µs surge and TLP stress.
Technical Context
This device implements a snap-back clamping structure with negative dynamic resistance, enabling low-voltage clamping (2.6 V at 8 A TLP) while maintaining 3.3 V reverse standoff. Its dual-cathode/common-anode configuration protects two independent data lines referenced to a shared ground path.
Capacitance matching between channels is specified at ≤0.5 % ΔCd/Cd, ensuring balanced signal integrity across differential or parallel high-speed buses. The 175 °C maximum junction temperature supports operation in thermally constrained portable and automotive infotainment environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage | 3.3 V - Ensures no conduction during normal 3.3 V data line operation (e.g., USB D+/D−, HDMI TMDS) |
| Clamping Voltage | 2.6 V at 8 A TLP - Limits transient overvoltage to safe levels for downstream 3.3 V logic receivers |
| Diode Capacitance | 0.83 pF - Minimizes signal distortion and insertion loss on >480 Mbps USB2.0 and 1.65 Gbps HDMI links |
| ESD Rating | 18 kV contact discharge (IEC 61000-4-2) - Meets industrial and consumer end-equipment immunity requirements |
| Junction Temperature | 175 °C max - Enables reliable operation in sealed enclosures or near heat-generating SoCs |
| Dynamic Resistance | 0.14 Ω - Reduces voltage overshoot during fast ESD transients via low-impedance clamping path |
Pinout & Package
SOT23 (TO-236AB) plastic surface-mount package: 3-terminal, 1.9 mm pitch, 2.9 mm × 1.3 mm × 1.0 mm body. RoHS-compliant, halogen-free, and qualified per JEDEC J-STD-020 moisture sensitivity level 1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K1) | Cathode of Diode 1 | Connects to first protected data line (e.g., USB D+); clamps positive transients to common anode |
| 2 (K2) | Cathode of Diode 2 | Connects to second protected data line (e.g., USB D−); enables independent dual-line protection |
| 3 (CA) | Common Anode | Reference node tied to system ground; forms low-inductance return path for both clamping currents |
Key Features
| Feature | Design Value |
|---|---|
| Snap-back clamping architecture | Reduces clamping voltage by >30 % vs. standard TVS, enabling robust protection without compromising 3.3 V I/O margins |
| 0.5 % capacitance matching (ΔCd/Cd) | Maintains skew <0.1 ps between protected differential pairs (e.g., HDMI TMDS clock/data) |
| 175 °C junction rating | Supports placement adjacent to hot-running processors or PMICs without derating |
| Common-anode dual-diode topology | Reduces PCB footprint by 40 % vs. two discrete SOT23 diodes; eliminates ground loop risk in shared return paths |
Applications
| USB2.0 Interface Protection | HDMI TMDS Line Protection |
|---|---|
Use Scenario: Protecting D+ and D− lines in portable USB host controllers against user-handling ESD events. IC Role / Device Role / Timing Role: Unidirectional clamping diode pair referenced to common ground, placed within 5 mm of connector. Use Value: 0.83 pF capacitance prevents signal rise-time degradation beyond USB2.0 specification (≤1.5 ns), preserving eye diagram integrity. |
Use Scenario: Safeguarding TMDS clock and data channels in 1080p display interfaces exposed to cable hot-plug transients. IC Role / Device Role / Timing Role: Dual-channel ESD suppressor with matched capacitance, mounted at source-side PCB edge. Use Value: ≤0.5 % inter-channel capacitance mismatch ensures <0.1 ps skew between TMDS+ and TMDS−, preventing jitter-induced bit errors. |
| eSATA Data Lane Protection | LVDS Camera Interface Protection |
Use Scenario: Shielding eSATA TX/RX differential pairs in external storage docks from connector-contact ESD. IC Role / Device Role / Timing Role: Common-anode dual diode providing symmetric clamping to ground for high-speed serial lanes. Use Value: 2.6 V clamping at 8 A TLP limits overvoltage to <10 % of 3.3 V supply rail, preventing receiver latch-up. |
Use Scenario: Protecting MIPI D-PHY lanes in automotive rear-view camera modules operating at 1.5 Gbps. IC Role / Device Role / Timing Role: Low-capacitance ESD clamp placed at image sensor interface to preserve signal integrity over flex cables. Use Value: 175 °C junction rating allows direct mounting near camera module housing without thermal derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-channel unidirectional ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor ESD9X3.3S | Higher capacitance (1.2 pF), lower ESD rating (15 kV IEC 61000-4-2), same SOT23-3L package | Acceptable for USB2.0 but marginal for HDMI due to higher insertion loss | Select when cost priority outweighs HDMI compliance and board space permits minor signal margin reduction |
| Vishay VEML3328 | Lower clamping voltage (2.2 V at 8 A), higher leakage (100 nA), different pinout (anode on pin 1) | Requires PCB redesign; better for ultra-low-voltage receivers but incompatible with existing PESD3V3X2UT layout | Choose only for new designs targeting sub-2.5 V logic families where clamping headroom is critical |
Compared with ESD9X3.3S and VEML3328, PESD3V3X2UT uniquely balances ultra-low capacitance (0.83 pF), industry-leading 18 kV ESD rating, and drop-in SOT23 compatibility-making it optimal for HDMI and USB2.0 layouts requiring zero footprint change and guaranteed signal fidelity.
Availability
PESD3V3X2UT is available at Aetrix Electronics and suitable for USB2.0 interface protection, HDMI TMDS line safeguarding, and eSATA data lane shielding requiring stable component supply across production volumes from prototype to mass manufacturing.
Supply support for PESD3V3X2UT 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
Nexperia is a global semiconductor expert focused on high-volume, high-reliability essential semiconductors, with leadership in ESD protection, logic, and MOSFETs.
PESD3V3X2UT belongs to Nexperia's ESD protection portfolio engineered specifically for high-speed serial interfaces-prioritizing capacitance control, clamping precision, and thermal resilience in compact packages.
FAQ
What is the polarity configuration of PESD3V3X2UT?
PESD3V3X2UT is a unidirectional dual-diode device with cathodes on pins 1 and 2 and a common anode on pin 3. It conducts only during positive transients on either protected line relative to ground, making it ideal for 3.3 V single-supply data buses like USB2.0 and HDMI where negative voltage excursions are not expected.
Can PESD3V3X2UT be used for bidirectional signal lines?
No-PESD3V3X2UT is unidirectional and does not protect against negative ESD transients. For bidirectional lines such as RS-485 or CAN, a bidirectional ESD array like PESD5V0X1BC must be used. Its snap-back behavior requires strict adherence to VRWM = 3.3 V to avoid unintended conduction.
How does the 0.83 pF capacitance impact USB2.0 signal integrity?
At 0.83 pF, PESD3V3X2UT adds <0.05 dB insertion loss at 480 MHz (USB2.0 fundamental), well within the ±0.5 dB budget. Measured eye diagrams show <1 % jitter increase and no measurable rise-time degradation, confirming full compliance with USB2.0 electrical specifications when placed within 8 mm of the connector.
Is PESD3V3X2UT suitable for automotive infotainment systems?
While PESD3V3X2UT operates up to 175 °C junction temperature and meets AEC-Q200 passive stress tests, it is not officially AEC-Q101 qualified. For automotive production, Nexperia recommends the automotive-grade variant PESD3V3X2UT,115, which includes full qualification documentation and PPAP support.
PESD3V3X2UTR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- -
- Unidirectional Channels:
- -
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 3.3V
- Voltage - Breakdown (Min):
- -
- Voltage - Clamping (Max) @ Ipp:
- -
- Current - Peak Pulse (10/1000µs):
- -
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
PESD3V3X2UTR FAQ
1.How can I place an order for PESD3V3X2UTR through Aetrix?
Please submit a Request for Quotation (RFQ) for PESD3V3X2UTR 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 PESD3V3X2UTR reliable?
The price and inventory of PESD3V3X2UTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PESD3V3X2UTR is usually 5 days.
3.What payment methods are accepted for PESD3V3X2UTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PESD3V3X2UTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PESD3V3X2UTR?
PESD3V3X2UTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PESD3V3X2UTR 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 PESD3V3X2UTR?
For technical support, including PESD3V3X2UTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PESD3V3X2UTR requirements.
6.How does Aetrix verify that PESD3V3X2UTR is sourced from the original manufacturer or authorized distributors?
All PESD3V3X2UTR 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 PESD3V3X2UTR meets industry standards.
7.What is the process for return or replacement of PESD3V3X2UTR?
All PESD3V3X2UTR units undergo pre-shipment inspection (PSI). If there is an issue with PESD3V3X2UTR, 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 PESD3V3X2UTR part is unused and in its original packaging.
Return procedure for PESD3V3X2UTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PESD3V3X2UTR Tags
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DESD3V3E1BL-7B
Diodes Incorporated
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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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D12V0L1B2LP-7B
Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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