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Nexperia USA Inc. PESD5V0U1UB-QX
- Part No.:
- PESD5V0U1UB-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- SC-79, SOD-523
- Datasheet:
-
PESD5V0U1UB-QX.pdf
- Description:
- PESD5V0U1UB-Q/SOD523/SC-79
- Quantity:
- Payment:
- Shipping:
Inventory:8,293
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Product details
Overview
PESD5V0U1UB-Q from Nexperia is a unidirectional ESD protection diode in SC-79 (SOD523) package, designed to safeguard single high-speed signal lines against electrostatic discharge up to ±9 kV (IEC 61000-4-2 Level 4), with ultra-low capacitance of 2 pF (typ.), reverse leakage current of 1 nA (typ.), and 5 V reverse standoff voltage - deployed in USB 2.0, Ethernet PHY interfaces, and SIM card slots.
For engineers reviewing the PESD5V0U1UB-Q datasheet, PESD5V0U1UB-Q pinout, PESD5V0U1UB-Q application, or PESD5V0U1UB-Q equivalent, this page delivers verified electrical parameters, validated automotive-grade qualification (AEC-Q101), package dimensions, layout guidance for ESD suppression, and direct comparison with functionally aligned alternatives.
Technical Context
This device operates as a clamping-type unidirectional TVS diode, leveraging silicon PN junction behavior to limit transient voltages during ESD events while maintaining minimal signal distortion on protected lines. Its low 1.7–2.3 pF capacitance at 5 V bias ensures integrity for data rates up to 1 Gbit/s.
The diode exhibits a breakdown voltage of 5.8–8.8 V at 5 mA, clamps transients below 12 V (IPP = 4 A), and sustains operation across –55 °C to +150 °C ambient temperature - meeting automotive reliability requirements without derating at full temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage | 5 V - Maximum continuous operating voltage before conduction begins; defines safe signal swing margin for 3.3 V/5 V logic interfaces. |
| Diode Capacitance | 2 pF (typ.) at 0 V - Enables use on USB 2.0, FireWire, and 1000BASE-T Ethernet lines without signal integrity degradation. |
| ESD Withstand | ±9 kV contact discharge (IEC 61000-4-2 Level 4) - Meets industrial and automotive system-level ESD immunity requirements. |
| Reverse Leakage Current | 1 nA (typ.) at 5 V - Minimizes power loss and avoids false triggering in battery-powered portable electronics. |
| Breakdown Voltage | 6.8 V (typ.) at 5 mA - Ensures reliable turn-on before downstream ICs exceed absolute maximum ratings. |
| Junction Temperature Limit | 150 °C - Supports under-hood automotive placement and sustained surge handling without thermal runaway. |
Pinout & Package
SC-79 (SOD523) surface-mount plastic package: 2-terminal, 1.2 mm × 0.8 mm × 0.6 mm body, cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K1) | Cathode | Connected to ground or low-impedance return path; forms clamping node for positive transients on protected line. |
| 2 (A) | Anode | Connected to signal line requiring protection; conducts during negative ESD events when line goes below ground. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low capacitance | 2 pF typ. at 0 V enables <1% signal rise-time degradation on 480 Mbps USB 2.0 differential pairs. |
| AEC-Q101 qualification | Validated for automotive applications including infotainment and telematics modules per stress test protocol. |
| Low leakage current | 1 nA max at VRWM reduces standby current drain in always-on SIM card and sensor interface circuits. |
| Unidirectional clamping | Protects lines with fixed polarity (e.g., USB D+ referenced to GND) without forward-biasing during normal operation. |
Applications
| USB 2.0 Interface Protection | Ethernet PHY Line Protection |
|---|---|
Use Scenario: Protecting D+ and D− lines in portable USB peripherals against user-handling ESD. IC Role / Device Role / Timing Role: Unidirectional clamping diode placed between connector and USB transceiver IC. Use Value: Maintains 480 Mbps signaling integrity with <2 pF loading and clamps ±8 kV transients below 12 V peak. |
Use Scenario: Shielding 100BASE-TX or 1000BASE-T transformer-coupled PHY lanes from board-level ESD. IC Role / Device Role / Timing Role: Single-line ESD suppressor on MDI side of Ethernet magnetics. Use Value: Prevents latch-up in PHY ICs during IEC 61000-4-2 contact discharge without degrading 125 MHz symbol rate eye diagram. |
| SIM Card Slot Protection | Automotive Infotainment Data Lines |
Use Scenario: Guarding VCC, I/O, CLK, and RST pins of removable SIM cards in mobile hotspots and telematics units. IC Role / Device Role / Timing Role: Per-pin unidirectional ESD clamp on each active SIM interface line. Use Value: Achieves <1 nA leakage to preserve battery life over 10-year field deployment while passing AEC-Q101 temperature cycling. |
Use Scenario: Securing LVDS or UART lines between head unit MCU and display/touch controller in vehicles. IC Role / Device Role / Timing Role: Signal-line protector mounted within 3 mm of connector per AEC-Q101 layout guidelines. Use Value: Survives repeated ±15 kV air discharge events in manufacturing and service environments without parameter shift. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ESD5V3U1U-2/TR | Higher VRWM (5.3 V), slightly higher Cd (2.5 pF typ.), same SOD523 package. | Better suited for 5 V tolerant interfaces where margin above 5 V is required. | Select when system rail tolerance exceeds 5.0 V and 0.3 V additional standoff justifies 0.5 pF capacitance increase. |
| TPD1E05U06DPYR | Lower VBR (5.5 V min), lower clamping voltage (9.5 V), same 2 pF Cd, but only qualified to IEC 61000-4-2 (no AEC-Q101). | Preferred for cost-sensitive consumer electronics where automotive qualification is unnecessary. | Choose for non-automotive designs needing tighter clamping and lower cost, accepting absence of automotive stress validation. |
Compared with ES5V3U1U-2/TR and TPD1E05U06DPYR, PESD5V0U1UB-Q uniquely balances 5 V standoff, 2 pF capacitance, and full AEC-Q101 compliance - making it the default choice for automotive USB, Ethernet, and SIM interfaces where reliability and signal fidelity are jointly critical.
Availability
PESD5V0U1UB-Q is available at Aetrix Electronics and suitable for USB 2.0 interface protection, automotive infotainment data links, and SIM card slot hardening requiring stable component supply across production lifecycles.
Supply support for PESD5V0U1UB-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 part belongs to Nexperia's PESD series of ultra-low-capacitance ESD protection diodes, engineered specifically for high-speed data line protection in automotive and portable electronics where signal integrity and robustness must coexist.
FAQ
What is the maximum clamping voltage of PESD5V0U1UB-Q during an 8 kV ESD event?
The typical clamping voltage is 11.5 V at 4 A peak pulse current (IPP), measured per IEC 61000-4-2 waveform. This value ensures protected ICs with 12 V absolute maximum ratings remain within safe operating limits during worst-case contact discharge events.
Can PESD5V0U1UB-Q be used on bidirectional signal lines like I²C?
No - it is unidirectional and only protects signals referenced to ground with defined polarity. For bidirectional buses such as I²C, a bidirectional ESD diode like PESD5V0S1BA-Q is required to clamp both positive and negative transients symmetrically.
Does the marking 'LA' on the device correspond to PESD5V0U1UB-Q?
Yes - Table 4 confirms the marking code 'LA' is assigned exclusively to PESD5V0U1UB-Q in SC-79 package, with the bar indicating Pin 1 (cathode), enabling visual verification during manual assembly and inspection.
Is reflow soldering profile information available for SC-79 package?
Yes - Figure 7 provides the recommended reflow footprint (solder land pattern) for SC-79 (SOD523), and Nexperia's generic SMD reflow guidelines apply: peak temperature ≤260 °C, time above 217 °C ≤60 s, ramp rate ≤3 °C/s, per J-STD-020.
PESD5V0U1UB-QX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Package/Case:
- SC-79, SOD-523
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 5V (Max)
- Voltage - Breakdown (Min):
- 5.8V
- Voltage - Clamping (Max) @ Ipp:
- -
- Current - Peak Pulse (10/1000µs):
- -
- Power - Peak Pulse:
- -
- Power Line Protection:
- No
- Applications:
- Ethernet, Telecom, USB
- Capacitance @ Frequency:
- 2pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-523
PESD5V0U1UB-QX FAQ
1.How can I place an order for PESD5V0U1UB-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for PESD5V0U1UB-QX 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 PESD5V0U1UB-QX reliable?
The price and inventory of PESD5V0U1UB-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PESD5V0U1UB-QX is usually 5 days.
3.What payment methods are accepted for PESD5V0U1UB-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PESD5V0U1UB-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PESD5V0U1UB-QX?
PESD5V0U1UB-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PESD5V0U1UB-QX 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 PESD5V0U1UB-QX?
For technical support, including PESD5V0U1UB-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PESD5V0U1UB-QX requirements.
6.How does Aetrix verify that PESD5V0U1UB-QX is sourced from the original manufacturer or authorized distributors?
All PESD5V0U1UB-QX 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 PESD5V0U1UB-QX meets industry standards.
7.What is the process for return or replacement of PESD5V0U1UB-QX?
All PESD5V0U1UB-QX units undergo pre-shipment inspection (PSI). If there is an issue with PESD5V0U1UB-QX, 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 PESD5V0U1UB-QX part is unused and in its original packaging.
Return procedure for PESD5V0U1UB-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PESD5V0U1UB-QX Tags
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onsemi
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DESD3V3E1BL-7B
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D5V0P1B2LP-7B
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DESD5V0U1BB-7
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D12V0L1B2LP-7B
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PESD2V0Y1BSFYL
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