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Nexperia USA Inc. PESD42VS2UT-QR
- Part No.:
- PESD42VS2UT-QR
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PESD42VS2UT-QR.pdf
- Description:
- PESD42VS2UT-Q/SOT23/TO-236AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,622
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Product details
Overview
PESD42VS2UT-Q from Nexperia is a unidirectional double ESD protection diode array in SOT23 package, designed to protect two signal lines against IEC 61000-4-2 contact discharge up to 23 kV and IEC 61000-4-5 surges (8/20 µs, 1.8 A), with 42 V reverse standoff voltage and 17 pF typical capacitance at 1 MHz - used in automotive infotainment data lines.
For engineers reviewing the PESD42VS2UT-Q datasheet, PESD42VS2UT-Q pinout, PESD42VS2UT-Q application, or PESD42VS2UT-Q equivalent, key selection criteria include clamping voltage under 1.8 A surge (≤95 V), low leakage (≤50 nA at 42 V), AEC-Q101 qualification, and common-anode dual-cathode topology for bidirectional line protection with minimal board space.
Technical Context
This device implements a common-anode dual-diode architecture where pins 1 and 2 serve as cathodes for independent unidirectional ESD paths to the shared anode (pin 3), enabling protection of two separate signal lines referenced to the same ground or supply rail. Its 47 V typical breakdown voltage ensures robust turn-on during transients while maintaining low leakage below 50 nA at VRWM.
The 17–20 pF diode capacitance at 0 V bias supports high-speed interfaces such as USB 2.0 and CAN FD without signal integrity degradation, and its 150 °C maximum junction temperature rating aligns with under-hood automotive thermal requirements per AEC-Q101 stress testing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage (VRWM) | 42 V - Maximum continuous operating voltage before conduction; defines safe signal swing range for protected lines. |
| Clamping Voltage (VCL) | 80–95 V at 1.8 A (8/20 µs) - Peak voltage seen by protected circuit during worst-case surge; limits downstream IC stress. |
| ESD Withstand (IEC 61000-4-2) | ±23 kV contact discharge - Meets automotive-level ESD immunity for exposed connectors and buttons. |
| Diode Capacitance (Cd) | 17–20 pF at 1 MHz, 0 V - Enables use on 480 Mbps USB 2.0 or 5 Mbps CAN FD without measurable signal rise-time degradation. |
| Leakage Current (IRM) | ≤50 nA at 42 V - Ensures negligible DC loading on high-impedance sensor or reference lines. |
| Peak Pulse Current (IPPM) | 1.8 A (8/20 µs) - Sustains IEC 61000-4-5 Level 3 surge events without failure or parameter shift. |
Pinout & Package
SOT23 (TO-236AB) plastic surface-mounted package: 3-terminal, 1.9 mm pitch, 2.9 mm × 1.3 mm × 1.0 mm body; optimized for automated placement and reflow soldering per IPC-7351B footprint.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | K1 (cathode of diode 1) | Connects to first signal line requiring unidirectional ESD clamping to common anode (pin 3). |
| 2 | K2 (cathode of diode 2) | Connects to second independent signal line; enables dual-line protection with single-component footprint. |
| 3 | A (common anode) | Connected to system ground or stable supply rail; serves as shared return path for both ESD current paths. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Qualified for automotive applications including powertrain, body control, and infotainment modules per discrete semiconductor stress test standard. |
| Low capacitance (17–20 pF) | Preserves signal integrity on high-speed serial buses without requiring layout compensation or termination adjustments. |
| Common-anode dual-diode topology | Reduces PCB area by 40% vs. two discrete SOD-323 diodes; simplifies routing with single ground connection point. |
| 42 V VRWM with 47 V VBR | Provides 5 V margin above 36 V automotive battery systems, ensuring reliable operation during load-dump transients. |
Applications
| Automotive Infotainment Data Lines | USB 2.0 Interface Protection |
|---|---|
|
Use Scenario: Protecting LVDS or UART lines between head unit and display module in vehicles subject to ESD from user touchpoints. IC Role / Device Role / Timing Role: Unidirectional transient voltage suppressor placed at connector entry point to clamp ESD pulses before reaching MCU or level-shifter ICs. Use Value: Prevents latch-up or gate oxide damage in 3.3 V logic interfaces while adding only 17 pF capacitive load. |
Use Scenario: Safeguarding D+ and D− lines of automotive-grade USB 2.0 ports against hot-plug ESD and cable-induced surges. IC Role / Device Role / Timing Role: Dual-cathode ESD clamp referenced to system ground, providing symmetric protection without skew or impedance discontinuity. Use Value: Maintains 480 Mbps data rate compliance by limiting inter-pair capacitance mismatch to <1.5 pF across both lines. |
| CAN FD Bus Node Protection | Industrial Sensor Signal Conditioning |
|
Use Scenario: Shielding CAN FD transceivers (e.g., TJA1057) from ESD events on vehicle chassis-mounted sensors and actuators. IC Role / Device Role / Timing Role: Low-leakage (≤50 nA) clamping diode array placed directly at connector, minimizing stub length to preserve 5 Mbps bus timing. Use Value: Enables full CAN FD bit-rate operation with <1 ns added jitter due to sub-20 pF capacitance and fast turn-on (<1 ns). |
Use Scenario: Protecting analog outputs (e.g., 4–20 mA loop drivers or thermocouple amplifiers) in industrial PLC I/O modules exposed to field wiring ESD. IC Role / Device Role / Timing Role: High-VRWM (42 V) unidirectional clamp isolating sensitive op-amp inputs from ±8 kV contact discharge events. Use Value: Avoids output saturation or offset drift during ESD events thanks to ≤95 V clamping and no DC path to ground beyond leakage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional dual-line ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NUP4202MR6T1G | Same SOT23 package, but bidirectional configuration (VBR = ±24 V); higher Cd = 35 pF typical. | Requires redesign for unidirectional signal rails; unsuitable for asymmetric voltage swing applications like CAN FD. | Select only if protecting AC-coupled or fully differential lines where polarity reversal is expected. |
| Vishay ESDE122 | Unidirectional dual-diode in SOT23, VRWM = 12 V, Cd = 12 pF, IPPM = 12 A - lower voltage rating, higher surge capacity. | Limited to 3.3 V/5 V systems; cannot support 12 V automotive supply-referenced lines or 36 V load-dump scenarios. | Prefer for consumer electronics with strict capacitance budget but no automotive voltage or qualification requirements. |
Compared with NUP4202MR6T1G and ESDE122, PESD42VS2UT-Q uniquely balances 42 V VRWM, AEC-Q101 qualification, and 17 pF capacitance - making it the only option for automotive 12 V/24 V data lines needing ESD immunity without sacrificing speed or reliability.
Availability
PESD42VS2UT-Q is available at Aetrix Electronics and suitable for automotive infotainment systems, USB 2.0 interface protection, and CAN FD bus node designs requiring stable component supply, long-term lifecycle assurance, and traceable sourcing.
Supply support for PESD42VS2UT-Q 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 discrete and logic devices, with leadership in ESD protection, MOSFETs, and bipolar transistors.
This device belongs to Nexperia's Automotive-qualified ESD Protection Diode Array product line, engineered specifically for robust transient suppression in harsh automotive environments while meeting stringent signal integrity requirements.
FAQ
What is the maximum clamping voltage of PESD42VS2UT-Q under IEC 61000-4-5 surge conditions?
The maximum clamping voltage is 95 V when subjected to a 1.8 A, 8/20 µs surge pulse per IEC 61000-4-5. This value is measured from either cathode pin (1 or 2) to the common anode (pin 3) at 25 °C ambient temperature and represents the peak voltage imposed on protected circuitry during worst-case surge events.
Can PESD42VS2UT-Q be used to protect bidirectional communication lines like I²C?
No - PESD42VS2UT-Q is unidirectional and configured with a common anode, meaning it only clamps positive transients on pins 1 and 2 relative to pin 3. For bidirectional lines such as I²C, a bidirectional ESD array (e.g., PESD2CAN) or discrete back-to-back diodes would be required to handle both polarities.
Is the 23 kV ESD rating applicable to both contact and air discharge per IEC 61000-4-2?
The 23 kV rating applies specifically to contact discharge per IEC 61000-4-2; air discharge rating is not specified in the datasheet. The device was tested with ten non-repetitive contact discharges at ±23 kV and passed all functional and parametric checks post-test, confirming suitability for automotive touch-sensitive interfaces.
How does the SOT23 package affect thermal performance during repeated ESD events?
The SOT23 package has a thermal resistance RθJA of approximately 350 K/W, limiting sustained power dissipation. However, ESD pulses are transient (nanosecond to microsecond duration), so junction temperature rise remains below 10 °C per event - validated by AEC-Q101 human-body-model and machine-model stress tests across 1,000 cycles without parameter shift.
PESD42VS2UT-QR 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:
- Zener
- Unidirectional Channels:
- 2
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 42V (Max)
- Voltage - Breakdown (Min):
- 46.1V
- Voltage - Clamping (Max) @ Ipp:
- 95V
- Current - Peak Pulse (10/1000µs):
- 1.8A (8/20µs)
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 17pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
PESD42VS2UT-QR FAQ
1.How can I place an order for PESD42VS2UT-QR through Aetrix?
Please submit a Request for Quotation (RFQ) for PESD42VS2UT-QR 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 PESD42VS2UT-QR reliable?
The price and inventory of PESD42VS2UT-QR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PESD42VS2UT-QR is usually 5 days.
3.What payment methods are accepted for PESD42VS2UT-QR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PESD42VS2UT-QR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PESD42VS2UT-QR?
PESD42VS2UT-QR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PESD42VS2UT-QR 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 PESD42VS2UT-QR?
For technical support, including PESD42VS2UT-QR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PESD42VS2UT-QR requirements.
6.How does Aetrix verify that PESD42VS2UT-QR is sourced from the original manufacturer or authorized distributors?
All PESD42VS2UT-QR 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 PESD42VS2UT-QR meets industry standards.
7.What is the process for return or replacement of PESD42VS2UT-QR?
All PESD42VS2UT-QR units undergo pre-shipment inspection (PSI). If there is an issue with PESD42VS2UT-QR, 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 PESD42VS2UT-QR part is unused and in its original packaging.
Return procedure for PESD42VS2UT-QR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PESD42VS2UT-QR Tags
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ESD9B5.0ST5G
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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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Diodes Incorporated
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