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Nexperia USA Inc. PESD42VS2UTR
- Part No.:
- PESD42VS2UTR
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PESD42VS2UTR.pdf
- Description:
- TVS DIODE 42VWM 95VC TO236AB
- Quantity:
- Payment:
- Shipping:
Inventory:611
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Product details
Overview
PESD42VS2UT 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, ≤50 nA leakage at 42 V, and 17–20 pF capacitance at 1 MHz - deployed in automotive infotainment interfaces and USB 2.0 data lines.
For engineers reviewing the PESD42VS2UT datasheet, PESD42VS2UT pinout, PESD42VS2UT application, or PESD42VS2UT equivalent, key selection criteria include clamping voltage under 1.8 A (80–95 V), AEC-Q101 qualification, common-anode dual-cathode topology, and low-capacitance protection for high-speed signals without signal integrity degradation.
Technical Context
This device implements a common-anode dual-diode architecture where pins 1 and 2 serve as cathodes for independent unidirectional clamping paths to the shared anode (pin 3), enabling simultaneous protection of two positive-polarity signal lines referenced to ground. Its VBR of 46.1–47.9 V at 2 mA ensures precise turn-on above system operating voltage while maintaining margin below 42 V VRWM.
Clamping performance is characterized under both IEC 61000-4-2 (30 ns rise, ±8 kV) and IEC 61000-4-5 (8/20 µs surge) waveforms, delivering VCL = 80–95 V at 1.8 A and 167 V at 16 A TLP pulse - confirming robust transient suppression across ESD and surge threat profiles without latch-up or thermal runaway.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Device Type | Unidirectional double ESD protection diode array - protects two independent signal lines with common anode return path |
| VRWM | 42 V - maximum continuous reverse voltage before conduction; sets safe operating margin for 3.3 V/5 V/12 V signal or supply lines |
| VCL @ 1.8 A | 80–95 V - clamped voltage during IEC 61000-4-5 8/20 µs surge; limits downstream IC stress to survivable levels |
| Capacitance | 17–20 pF @ 1 MHz, 0 V - low enough to avoid signal distortion on USB 2.0 (480 Mbps) and audio/data lines |
| ESD Rating | ±23 kV contact discharge per IEC 61000-4-2 - exceeds Level 4 immunity requirements for automotive and industrial ports |
| Leakage Current | ≤50 nA @ 42 V - negligible DC loading on high-impedance sensor or reference lines |
| AEC-Q101 | Qualified - validated for automotive temperature range (−55 °C to +150 °C) and mechanical stress reliability |
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 height; optimized for automated placement and reflow soldering per IPC-7351B.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | K1 (cathode, diode 1) | Connects to first protected line; conducts transient current to common anode (pin 3) when line voltage exceeds VRWM |
| 2 | K2 (cathode, diode 2) | Connects to second protected line; operates independently from K1 but shares same anode return path |
| 3 | A (common anode) | Must be connected to system ground or low-impedance return plane; completes clamping path for both diodes |
Key Features
| Feature | Design Value |
|---|---|
| Common-anode dual-diode topology | Enables compact two-line protection with single ground connection - reduces PCB footprint vs. discrete diodes |
| Low 17–20 pF capacitance | Preserves signal integrity on high-speed interfaces (e.g., USB 2.0, HDMI DDC, I²C) without added jitter or rise-time degradation |
| 23 kV IEC 61000-4-2 ESD rating | Meets or exceeds automotive EMC test requirements (ISO 10605) and industrial IEC 61000-4-2 Level 4 compliance |
| AEC-Q101 qualification | Validated for operation across −55 °C to +150 °C junction temperature - suitable for engine bay, ADAS, and infotainment modules |
| 42 V VRWM with 46.1–47.9 V VBR | Provides ≥4 V margin above 36 V automotive battery transients while avoiding false triggering on nominal 12 V/24 V rails |
Applications
| USB 2.0 Data Lines | Automotive Infotainment Ports |
|---|---|
|
Use Scenario: Protecting D+ and D− lines of USB 2.0 host/device connectors against ESD events during hot-plug insertion. IC Role / Device Role / Timing Role: Unidirectional clamping diode array providing low-capacitance, fast-response transient suppression directly at connector entry point. Use Value: Maintains 480 Mbps signaling integrity with <20 pF loading while clamping ±23 kV ESD pulses to <95 V - preventing PHY damage without requiring series resistors or layout compromises. |
Use Scenario: Shielding LVDS video or audio serial links (e.g., FPD-Link, MOST) in head units and display modules from ESD during service or user interaction. IC Role / Device Role / Timing Role: Dual-line ESD suppressor placed adjacent to board-to-cable connectors, leveraging common-anode grounding for minimal loop area. Use Value: Enables AEC-Q101-compliant protection with <100 V clamping at 1.8 A surge - ensuring functional safety compliance without derating or redundancy. |
| Industrial Sensor Interfaces | Power Supply Input Protection |
|
Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) and digital I/O lines on PLC I/O modules exposed to field wiring ESD. IC Role / Device Role / Timing Role: Low-leakage (<50 nA) bidirectional-capable unidirectional clamp protecting grounded-signal lines from polarity-reversed transients. Use Value: Prevents sensor offset drift or ADC saturation caused by ESD-induced leakage while maintaining sub-100 nA bias current error over full temperature range. |
Use Scenario: Adding secondary ESD/surge protection on 12 V or 24 V power inputs of embedded controllers where primary TVS is upstream. IC Role / Device Role / Timing Role: Standoff-rated (42 V) clamping device handling fast-rising transients before bulk TVS activation, reducing stress on upstream components. Use Value: Extends system-level surge immunity by absorbing initial ESD energy with <95 V clamping - limiting voltage overshoot seen by downstream regulators and LDOs. |
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 |
|---|---|---|---|
| ESD5Z3.3T5G | Lower VRWM (3.3 V), higher capacitance (100 pF), no AEC-Q101 qualification | Targeted at low-voltage logic (1.8 V/3.3 V) only; unsuitable for 12 V+ supply or automotive use | Select only for cost-sensitive consumer electronics with strict ≤3.3 V rail constraints and no automotive qualification requirement |
| TPD2E001DRYR | Bi-directional configuration, 10 pF capacitance, 5 V VRWM, not AEC-Q101 qualified | Designed for USB D+/D− with symmetrical ±5 V tolerance; lacks high-voltage standoff for supply-line protection | Prefer for ultra-low-capacitance USB 2.0 protection where bidirectional clamping is mandatory and 42 V standoff is unnecessary |
Compared with ESD5Z3.3T5G and TPD2E001DRYR, PESD42VS2UT uniquely combines 42 V standoff, AEC-Q101 qualification, and dual-unidirectional topology - making it the only option among the three qualified for automotive power-line and high-voltage signal protection without compromising ESD robustness or thermal reliability.
Availability
PESD42VS2UT is available at Aetrix Electronics and suitable for automotive infotainment systems, industrial sensor interface modules, and USB 2.0 peripheral designs requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant ESD protection.
Supply support for PESD42VS2UT 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 standard products - delivering discrete, logic, and MOSFET solutions optimized for automotive, industrial, and mobile applications.
PESD42VS2UT belongs to Nexperia's Automotive ESD Protection Diode family, engineered specifically to meet stringent ISO 10605 and AEC-Q101 requirements for harsh-environment signal-line protection in vehicle electronics.
FAQ
Is PESD42VS2UT suitable for bidirectional signal lines like RS-485?
No. PESD42VS2UT is unidirectional only, with cathodes on pins 1 and 2 and a common anode on pin 3 - it clamps positive transients to ground but does not conduct negative excursions. For true bidirectional protection (e.g., RS-485, CAN), a symmetric dual-diode or dedicated bidirectional array such as PESD5V0S1BA must be used instead.
What is the recommended PCB layout for optimal ESD performance?
Place PESD42VS2UT within 2 mm of the protected connector, route protected traces directly to pins 1 and 2 with minimum length, connect pin 3 to a solid ground plane using multiple vias, and avoid routing unprotected signals parallel to protected ones. Keep the ground return path short and low-inductance to minimize clamping voltage overshoot during fast ESD events.
Does PESD42VS2UT require external series impedance for USB 2.0 compliance?
No. Its 17–20 pF capacitance and low dynamic resistance enable direct placement on D+/D− lines without series resistors. The device meets USB 2.0 eye diagram and jitter specifications when laid out per Nexperia's AN10784 guidelines - including controlled trace impedance and minimized stub length between diode and connector.
How does the 23 kV ESD rating correlate to real-world system-level testing?
The 23 kV rating is measured per IEC 61000-4-2 contact discharge on individual devices. In system-level tests (e.g., ISO 10605), actual pass/fail depends on PCB layout, grounding, and proximity to other components - but PESD42VS2UT's low clamping voltage (≤95 V at 1.8 A) and AEC-Q101 qualification make it a proven enabler of Class IV (±30 kV air/±25 kV contact) system passes when correctly implemented.
PESD42VS2UTR 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:
- 1
- 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:
- General Purpose
- 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
PESD42VS2UTR FAQ
1.How can I place an order for PESD42VS2UTR through Aetrix?
Please submit a Request for Quotation (RFQ) for PESD42VS2UTR 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 PESD42VS2UTR reliable?
The price and inventory of PESD42VS2UTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PESD42VS2UTR is usually 5 days.
3.What payment methods are accepted for PESD42VS2UTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PESD42VS2UTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PESD42VS2UTR?
PESD42VS2UTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PESD42VS2UTR 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 PESD42VS2UTR?
For technical support, including PESD42VS2UTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PESD42VS2UTR requirements.
6.How does Aetrix verify that PESD42VS2UTR is sourced from the original manufacturer or authorized distributors?
All PESD42VS2UTR 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 PESD42VS2UTR meets industry standards.
7.What is the process for return or replacement of PESD42VS2UTR?
All PESD42VS2UTR units undergo pre-shipment inspection (PSI). If there is an issue with PESD42VS2UTR, 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 PESD42VS2UTR part is unused and in its original packaging.
Return procedure for PESD42VS2UTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PESD42VS2UTR Tags
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ESD9B5.0ST5G
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DESD3V3E1BL-7B
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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