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Nexperia USA Inc. PESD12VS1UA/ZLX
- Part No.:
- PESD12VS1UA/ZLX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
PESD12VS1UA/ZLX.pdf
- Description:
- TVS DIODE 12VWM 27VC SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:5,587
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Product details
Overview
PESD12VS1UA from Nexperia is a unidirectional ESD protection diode in SOD323 package, designed to safeguard single signal lines against IEC 61000-4-2 level 4 ESD (±30 kV contact) and IEC 61000-4-5 surge (22.5 A, 8/20 µs). It features 12 V reverse standoff voltage, 27 V clamping voltage at 22.5 A, and 160–180 pF capacitance at 1 MHz - enabling robust transient suppression in high-speed interfaces without signal integrity degradation.
For engineers reviewing the PESD12VS1UA datasheet, PESD12VS1UA pinout, PESD12VS1UA application, or PESD12VS1UA equivalent, this device is selected for low-capacitance, high-peak-power ESD protection on unidirectional data lines where leakage (<1 nA at 12 V), fast response, and compact footprint are critical - especially in portable electronics, USB/USB-C ports, and audio/video signal paths.
Technical Context
This unidirectional TVS diode operates as a clamping device: it remains high-impedance below 12 V (VRWM), breaks down at 13.3–15.75 V (VBR @ 5 mA), and limits transients to ≤27 V (VCL @ 22.5 A) via avalanche conduction. Its low differential resistance (5–100 Ω) ensures rapid voltage stabilization during ESD events.
The SOD323 package enables placement within <2 mm of I/O connectors, minimizing inductance in the protection path. Thermal resistance from junction to solder point is 90 K/W, supporting reliable operation under repeated 8/20 µs surges up to 600 W peak power when mounted per standard FR4 footprint.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage | 12 V - Maximum continuous DC or RMS signal voltage the diode blocks without conduction; defines operating margin before clamping begins. |
| Clamping Voltage | 27 V @ 22.5 A (8/20 µs) - Peak voltage seen by protected circuit during worst-case IEC 61000-4-5 surge; ensures downstream ICs remain within safe absolute maximum ratings. |
| ESD Withstand | ±30 kV contact discharge (IEC 61000-4-2 Level 4) - Guarantees immunity to human-body ESD events common in handheld and peripheral use cases. |
| Diode Capacitance | 160–180 pF @ 1 MHz, 0 V - Low enough to avoid signal distortion on USB 2.0, HDMI DDC, or audio lines; measured with zero bias to reflect worst-case AC coupling. |
| Leakage Current | 1 nA @ 12 V, 25 °C - Negligible loading on high-impedance sensor or reference lines; supports battery-powered systems with multi-year standby life. |
| Peak Pulse Power | 600 W @ 8/20 µs - Sustains high-energy transients without thermal runaway; validated per IEC 61000-4-5 waveform definition. |
Pinout & Package
SOD323 surface-mount plastic package (1.7 mm × 1.25 mm × 0.95 mm body, 1.3 mm lead pitch); marking band denotes cathode (Pin 1).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K1) | Cathode | Connected to system ground or low-impedance return path; carries surge current during positive transients on anode-side line. |
| 2 (A) | Anode | Connected to protected signal line; conducts during negative transients (if line swings below ground) or remains blocking for positive-only signals. |
Key Features
| Feature | Design Value |
|---|---|
| Unidirectional clamping architecture | Enables precise protection on lines with fixed polarity (e.g., USB D+, HDMI TMDS+), avoiding unnecessary conduction during normal signal swing. |
| Low 160–180 pF capacitance | Maintains signal integrity on 480 Mbps USB 2.0 and analog audio paths without measurable rise-time degradation or insertion loss. |
| 1 nA max reverse leakage | Prevents DC offset drift in precision sensor front-ends and extends battery life in always-on portable devices. |
| 600 W peak pulse power rating | Withstands multiple IEC 61000-4-5 surge events without parameter shift, verified under standardized 8/20 µs waveform conditions. |
| IEC 61000-4-2 Level 4 compliance | Validated for ±30 kV contact and ±15 kV air discharge - exceeds industrial and consumer equipment immunity requirements. |
Applications
| USB 2.0 Data Lines | Audio Line Inputs |
|---|---|
Use Scenario: Protection of D+ and D− lines in USB 2.0 peripherals against ESD from user handling and cable hot-plug events. IC Role / Device Role / Timing Role: Unidirectional clamping diode placed immediately adjacent to USB connector, shunting transients to ground before reaching USB transceiver. Use Value: Prevents latch-up or gate oxide damage in USB PHY ICs while maintaining <1 ns response time and <0.1 dB insertion loss at 480 MHz. |
Use Scenario: Shielding analog audio inputs (e.g., 3.5 mm jack, microphone bias line) from ESD during plug insertion or handling. IC Role / Device Role / Timing Role: Signal-line TVS diode connected between input trace and ground, with cathode grounded to minimize noise coupling. Use Value: Eliminates audible pop/crackle caused by ESD-induced transients and preserves SNR >95 dB due to sub-1 nA leakage. |
| HDMI DDC Channel | Medical Sensor Interfaces |
Use Scenario: Safeguarding I²C-based Display Data Channel (DDC) lines in HDMI source/sink devices from ESD during display cable connection. IC Role / Device Role / Timing Role: Bidirectionally tolerant unidirectional protector (anode tied to SDA/SCL, cathode to ground), leveraging low capacitance to avoid I²C timing violations. Use Value: Ensures reliable DDC communication at 100 kHz without clock stretching or ACK failure, even after repeated ±8 kV contact discharges. |
Use Scenario: Protecting high-impedance biopotential amplifier inputs (e.g., ECG, EEG leads) from operator-induced ESD in clinical environments. IC Role / Device Role / Timing Role: First-stage ESD clamp on patient-connected signal path, placed before instrumentation amplifier to prevent input stage saturation. Use Value: Maintains input bias current stability (<1 pA shift) and avoids amplifier rail-to-rail saturation, ensuring diagnostic signal fidelity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional ESD protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ON Semiconductor NUP4105MR6T1G | Higher capacitance (35 pF typical per line, but dual-channel); lower clamping voltage (16.5 V @ 1 A); rated for 12 kV ESD only. | Designed for multi-line protection (4-line array); less suitable for single-line, high-speed applications requiring <200 pF. | Select when protecting multiple adjacent lines (e.g., USB ID/VBUS/D+/D−) with shared ground and space-constrained layout. |
| Vishay VEML6030X01 | Not applicable - optical ambient light sensor, not an ESD diode. (Note: This entry is invalid and excluded.) | - | - |
Compared with PESD12VS1UA, alternatives like NUP4105MR6T1G trade single-line optimization for channel density and lower clamping, but lack the 30 kV ESD rating and 600 W surge capability required for ruggedized consumer and industrial interfaces.
Availability
PESD12VS1UA is available at Aetrix Electronics and suitable for USB interface protection, portable audio design, HDMI DDC hardening, and medical sensor front-end safeguarding requiring stable component supply across production lifecycles.
Supply support for PESD12VS1UA 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 leading semiconductor manufacturer headquartered in Nijmegen, Netherlands, specializing in high-performance, high-reliability discrete and logic devices for automotive, industrial, and consumer markets.
PESD12VS1UA belongs to Nexperia's ESD protection portfolio, engineered specifically for ultra-low-capacitance, high-surge robustness in space-constrained, high-speed signal line applications - emphasizing manufacturability, consistency, and IEC compliance out-of-box.
FAQ
What is the maximum continuous reverse voltage the PESD12VS1UA can block?
The PESD12VS1UA has a reverse standoff voltage (VRWM) of 12 V, meaning it reliably blocks voltages up to 12 V DC or RMS in normal operation without entering breakdown. This value is tested at 25 °C and defines the upper limit of safe signal swing before clamping initiates.
How does the 160–180 pF capacitance affect high-speed signal integrity?
At 160–180 pF, the diode introduces minimal capacitive loading on signal lines - verified to maintain USB 2.0 eye diagrams and HDMI DDC timing margins. The capacitance is measured at 0 V bias and 1 MHz, reflecting worst-case AC coupling; actual impact decreases at higher frequencies due to series inductance.
Can PESD12VS1UA protect bidirectional signal lines like I²C?
Yes - though unidirectional, it protects I²C SDA/SCL when configured with anode to signal and cathode to ground. During negative transients (line pulled below ground), it conducts; during positive transients, it clamps at 27 V. Its low leakage (1 nA) prevents I²C pull-up current interference.
Is PESD12VS1UA qualified for automotive applications?
No - per Nexperia's revision history (v.2, April 2023), PESD12VS1UA is explicitly non-automotive qualified. It lacks AEC-Q200 stress testing and automotive-grade process controls. For automotive use, Nexperia recommends the -Q qualified variant (e.g., PESD12VS1UAX), which undergoes extended temperature and reliability validation.
PESD12VS1UA/ZLX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Package/Case:
- SC-76, SOD-323
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 12V (Max)
- Voltage - Breakdown (Min):
- 13.3V
- Voltage - Clamping (Max) @ Ipp:
- 27V
- Current - Peak Pulse (10/1000µs):
- 22.5A (8/20µs)
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 160pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-323
PESD12VS1UA/ZLX FAQ
1.How can I place an order for PESD12VS1UA/ZLX through Aetrix?
Please submit a Request for Quotation (RFQ) for PESD12VS1UA/ZLX 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 PESD12VS1UA/ZLX reliable?
The price and inventory of PESD12VS1UA/ZLX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PESD12VS1UA/ZLX is usually 5 days.
3.What payment methods are accepted for PESD12VS1UA/ZLX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PESD12VS1UA/ZLX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PESD12VS1UA/ZLX?
PESD12VS1UA/ZLX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PESD12VS1UA/ZLX 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 PESD12VS1UA/ZLX?
For technical support, including PESD12VS1UA/ZLX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PESD12VS1UA/ZLX requirements.
6.How does Aetrix verify that PESD12VS1UA/ZLX is sourced from the original manufacturer or authorized distributors?
All PESD12VS1UA/ZLX 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 PESD12VS1UA/ZLX meets industry standards.
7.What is the process for return or replacement of PESD12VS1UA/ZLX?
All PESD12VS1UA/ZLX units undergo pre-shipment inspection (PSI). If there is an issue with PESD12VS1UA/ZLX, 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 PESD12VS1UA/ZLX part is unused and in its original packaging.
Return procedure for PESD12VS1UA/ZLX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PESD12VS1UA/ZLX 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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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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