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Nexperia USA Inc. PESD15VS2UAT-QR
- Part No.:
- PESD15VS2UAT-QR
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
PESD15VS2UAT-QR.pdf
- Description:
- PESD15VS2UAT-Q/SOT23/TO-236AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,290
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Product details
Overview
PESD15VS2UAT-Q from Nexperia is a unidirectional double ESD protection diode in common-cathode SOT23 package, designed to protect two data lines against 30 kV IEC 61000-4-2 ESD and 5 A IEC 61000-4-5 surge transients. It features 15 V reverse standoff voltage, 32–70 pF capacitance, and 1 nA leakage at 15 V - optimized for CAN bus and high-speed data line protection in automotive ECUs.
For engineers reviewing the PESD15VS2UAT-Q datasheet, PESD15VS2UAT-Q pinout, PESD15VS2UAT-Q application, or PESD15VS2UAT-Q equivalent, key selection criteria include clamping voltage (≤40 V at 5 A), ultra-low capacitance for signal integrity, AEC-Q101 qualification, and common-cathode dual-anode topology for ground-referenced bidirectional line protection.
Technical Context
This device implements two identical unidirectional ESD protection diodes sharing a single cathode terminal (Pin 3), enabling independent protection of two separate signal lines referenced to system ground. Its low 225 Ω differential resistance ensures fast transient response with minimal voltage overshoot during ESD events.
The diode pair is characterized by tight parameter matching: breakdown voltage (17.6–18.4 V at 5 mA), clamping voltage (≤40 V at 5 A), and capacitance (32–70 pF at 0 V), supporting reliable protection of CAN FD, USB 2.0, and LVDS interfaces without signal distortion.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage | 15 V - maximum continuous operating voltage before conduction; sets upper limit for protected line DC bias. |
| Clamping Voltage | 40 V at 5 A (8/20 µs) - peak voltage seen by protected circuit during worst-case surge; ensures downstream ICs remain within safe operating area. |
| ESD Rating | ±30 kV contact discharge (IEC 61000-4-2 Level 4) - meets automotive and industrial immunity requirements without external shielding. |
| Diode Capacitance | 32–70 pF at 1 MHz / 0 V - low enough to avoid signal degradation on 1–5 Mbps CAN or audio data lines. |
| Peak Pulse Power | 160 W at 8/20 µs - sustains high-energy surges without thermal failure under repeated stress conditions. |
| Reverse Leakage | 1 nA at 15 V - negligible current draw that avoids loading sensitive analog or low-power sensor inputs. |
Pinout & Package
Package: SOT23 plastic surface-mount package (2.9 mm × 1.3 mm × 1.0 mm body, 1.9 mm lead pitch), qualified per AEC-Q101 for automotive use.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (A1) | Anode of Diode 1 | Connects to first protected line (e.g., CAN_H); conducts transient current to common cathode when line voltage exceeds VRWM. |
| 2 (A2) | Anode of Diode 2 | Connects to second protected line (e.g., CAN_L); operates independently but shares cathode return path for compact layout. |
| 3 (CC) | Common Cathode | Single ground reference terminal for both diodes; must be routed with low-inductance connection to system ground plane. |
Key Features
| Feature | Design Value |
|---|---|
| Common-cathode dual-diode architecture | Enables simultaneous protection of two ground-referenced lines using one footprint, reducing PCB area and BOM count vs. discrete diodes. |
| AEC-Q101 qualification | Validated for automotive environments including temperature cycling (-65 °C to +150 °C), humidity, and mechanical shock - suitable for engine control and ADAS modules. |
| Ultra-low 1 nA reverse leakage | Prevents signal offset or battery drain in always-on automotive nodes (e.g., LIN/CAN wake-up receivers) without compromising protection strength. |
| 32–70 pF capacitance tolerance | Ensures consistent rise-time preservation across production lots for timing-critical interfaces like FlexRay or SENT sensors. |
Applications
| Automotive CAN Bus Protection | USB 2.0 Data Line Protection |
|---|---|
Use Scenario: Protecting CAN_H and CAN_L lines in vehicle body control modules exposed to ESD during connector mating and electromagnetic interference in 12 V systems. IC Role / Device Role / Timing Role: Unidirectional transient voltage suppressor placed at connector interface to clamp ESD pulses before reaching CAN transceiver input pins. Use Value: Maintains CAN signal integrity up to 1 Mbps with <70 pF loading while surviving 30 kV contact discharge per ISO 10605. |
Use Scenario: Safeguarding D+ and D− lines of USB 2.0 ports in infotainment head units against user-hand ESD and board-level coupling. IC Role / Device Role / Timing Role: Low-capacitance ESD clamp positioned adjacent to USB connector to minimize stub length and preserve 480 Mbps eye diagram. Use Value: Limits voltage excursion to ≤40 V during 5 A surge, preventing latch-up in USB PHY without degrading signal rise/fall times. |
| Industrial RS-485 Transceiver Interface | Audio Line Input Protection |
Use Scenario: Shielding half-duplex RS-485 A/B differential pair in factory automation gateways from cable discharge events and lightning-induced surges. IC Role / Device Role / Timing Role: Dual-line protector tied to local ground, absorbing common-mode transients while preserving differential signaling margin. Use Value: Withstands 5 A (8/20 µs) surge per IEC 61000-4-5, enabling compliance with EN 61000-6-2 industrial immunity standards. |
Use Scenario: Guarding analog audio inputs (e.g., microphone or line-in) in automotive amplifiers against handling ESD and electrostatic coupling from nearby displays. IC Role / Device Role / Timing Role: High-impedance ESD shunt placed before op-amp input stage to prevent gate oxide damage without affecting DC bias. Use Value: 1 nA leakage avoids audible pop/noise in high-gain preamp stages; 15 V VRWM aligns with typical ±12 V audio rail limits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar dual-line unidirectional ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NUP4202MR6T1G | Higher 24 V VRWM; 100 pF max capacitance; lower 20 kV ESD rating; SOT-23-6 package with extra GND pin. | Less suitable for 15 V CAN systems due to higher standoff; higher capacitance limits use in >10 Mbps interfaces. | Select only if higher VRWM and integrated GND path are required; verify layout compatibility with 6-pin footprint. |
| Vishay VEML6030X01 | Not applicable - this is an ambient light sensor, not an ESD diode; invalid alternative. | N/A | Discard - misidentified part; no functional equivalence to PESD15VS2UAT-Q. |
Compared with NUP4202MR6T1G, PESD15VS2UAT-Q offers tighter capacitance control (32–70 pF vs. up to 100 pF), higher ESD rating (30 kV vs. 20 kV), and exact 15 V standoff matching CAN bus voltage margins - making it superior for automotive serial bus protection where signal fidelity and immunity compliance are critical.
Availability
PESD15VS2UAT-Q is available at Aetrix Electronics and suitable for automotive CAN bus protection, USB 2.0 interface hardening, and industrial RS-485 transceiver safeguarding requiring stable component supply across long-life production programs.
Supply support for PESD15VS2UAT-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.
PESD15VS2UAT-Q belongs to Nexperia's Automotive-qualified ESD Protection portfolio, engineered specifically for robust transient suppression in safety-critical vehicle networks and high-reliability industrial communication interfaces.
FAQ
What is the maximum operating temperature for PESD15VS2UAT-Q?
The junction temperature limit is 150 °C, and ambient operating range extends from −65 °C to +150 °C. This wide thermal envelope supports placement near power components in engine compartments or under-hood ECUs without derating, provided PCB copper area and airflow meet Nexperia's thermal guidelines for SOT23 packages.
Can PESD15VS2UAT-Q protect bidirectional signals like RS-485?
Yes - its common-cathode configuration allows independent clamping of both signal lines to ground, making it suitable for bidirectional differential buses. When used on RS-485 A/B lines, each anode connects to one line while the shared cathode ties to clean ground, suppressing common-mode transients without disrupting differential operation.
Is the 30 kV ESD rating applicable to both contact and air discharge?
No - the 30 kV rating applies only to contact discharge per IEC 61000-4-2; air discharge rating is 15 kV. This distinction reflects real-world failure modes: contact discharge represents direct human touch, while air discharge involves proximity arcing - both tested per standard methodology with ten non-repetitive pulses.
How does the 1 nA reverse leakage impact low-power sensor interfaces?
At 1 nA, leakage introduces negligible error in microamp-level sensor bias networks (e.g., thermistor dividers or MEMS microphone bias). For example, across a 1 MΩ pull-up, it causes only 1 mV offset - well below typical ADC reference tolerances and immune to noise coupling in automotive harness environments.
PESD15VS2UAT-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):
- 15V (Max)
- Voltage - Breakdown (Min):
- 17.6V
- Voltage - Clamping (Max) @ Ipp:
- 40V
- Current - Peak Pulse (10/1000µs):
- 5A (8/20µs)
- Power - Peak Pulse:
- 160W
- Power Line Protection:
- No
- Applications:
- CAN, Telecom
- Capacitance @ Frequency:
- 32pF @ 1MHz
- Operating Temperature:
- -65°C ~ 150°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TO-236AB
PESD15VS2UAT-QR FAQ
1.How can I place an order for PESD15VS2UAT-QR through Aetrix?
Please submit a Request for Quotation (RFQ) for PESD15VS2UAT-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 PESD15VS2UAT-QR reliable?
The price and inventory of PESD15VS2UAT-QR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PESD15VS2UAT-QR is usually 5 days.
3.What payment methods are accepted for PESD15VS2UAT-QR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PESD15VS2UAT-QR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PESD15VS2UAT-QR?
PESD15VS2UAT-QR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PESD15VS2UAT-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 PESD15VS2UAT-QR?
For technical support, including PESD15VS2UAT-QR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PESD15VS2UAT-QR requirements.
6.How does Aetrix verify that PESD15VS2UAT-QR is sourced from the original manufacturer or authorized distributors?
All PESD15VS2UAT-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 PESD15VS2UAT-QR meets industry standards.
7.What is the process for return or replacement of PESD15VS2UAT-QR?
All PESD15VS2UAT-QR units undergo pre-shipment inspection (PSI). If there is an issue with PESD15VS2UAT-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 PESD15VS2UAT-QR part is unused and in its original packaging.
Return procedure for PESD15VS2UAT-QR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PESD15VS2UAT-QR Tags
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