My Inquiry
My Account
Nexperia USA Inc. PESD12VS1UA,115
- Part No.:
- PESD12VS1UA,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- SC-76, SOD-323
- Datasheet:
-
PESD12VS1UA,115.pdf
- Description:
- TVS DIODE 12VWM 27VC SOD323
- Quantity:
- Payment:
- Shipping:
Inventory:3,475
Please send an inquiry. Send us your inquiry, and we will respond immediately.
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), IEC 61000-4-5 surge (22.5 A, 8/20 µs), with 12 V reverse standoff voltage, 27 V clamping voltage at 22.5 A, and 160–180 pF capacitance at 1 MHz.
For engineers reviewing the PESD12VS1UA datasheet, PESD12VS1UA pinout, PESD12VS1UA application, or PESD12VS1UA equivalent, this device is selected for high-speed data line protection where low capacitance, precise clamping, and robust transient immunity are required - especially in portable electronics, audio interfaces, and industrial I/O ports.
Technical Context
This unidirectional TVS diode operates as a clamping device in series with a signal path referenced to ground, conducting only when reverse voltage exceeds its breakdown threshold (~14.5 V typ). Its low differential resistance (<100 Ω) ensures rapid voltage suppression during fast transients like ESD (1 ns rise time) and surge events.
Thermal design relies on junction-to-solder-point thermal resistance of 250 K/W (typ), enabling effective heat dissipation through the cathode pad during repetitive pulse conditions. The SOD323 footprint supports compact PCB layout with minimal parasitic inductance - critical for maintaining clamping performance below 27 V under 22.5 A peak current.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage (VRWM) | 12 V - Maximum continuous operating voltage before leakage rises significantly; defines safe signal swing range for protected line. |
| Clamping Voltage (VCL) | 27 V at IPP = 22.5 A - Peak voltage seen by downstream circuit during IEC 61000-4-5 surge; limits stress on IC inputs. |
| ESD Withstand | ±30 kV contact discharge (IEC 61000-4-2 Level 4) - Validates robustness against human-body ESD events in handheld and peripheral designs. |
| Diode Capacitance (Cd) | 160–180 pF at 1 MHz, VR = 0 V - Low enough for USB 2.0, HDMI DDC, and audio codec lines without signal integrity degradation. |
| Peak Pulse Power (PPPM) | 600 W (8/20 µs) - Sustains high-energy surges without failure; validated per IEC 61000-4-5 waveform. |
| Leakage Current (IRM) | 1 nA max at 12 V - Negligible loading on high-impedance analog or logic inputs; preserves battery life in portable systems. |
Pinout & Package
Package: SOD323 - ultra-compact surface-mount plastic package (1.7 mm × 1.25 mm × 0.95 mm), 2-terminal, 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 return path; carries surge current during clamping; solder pad serves as primary thermal path. |
| 2 (A) | Anode | Connected to signal line under protection; reverse-biased during normal operation; conducts only during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| Unidirectional clamping architecture | Protects positive-polarity signal lines (e.g., USB D+, HDMI TMDS+) without interfering with DC bias or low-frequency operation. |
| Low clamping voltage (27 V @ 22.5 A) | Ensures downstream ICs rated for ≤30 V I/O survive surge events without latch-up or gate oxide damage. |
| Sub-200 pF capacitance | Enables use on 480 Mbps USB 2.0 data lines and audio I²S buses without measurable jitter or edge distortion. |
| 1 nA reverse leakage | Prevents signal attenuation or offset drift in precision sensor front-ends and battery-powered microcontroller GPIOs. |
| SOD323 footprint compatibility | Supports automated placement and reflow; matches industry-standard land pattern (Fig. 11) for reliable solder joint formation. |
Applications
| USB 2.0 Data Lines | HDMI DDC/CEC Channels |
|---|---|
Use Scenario: Protection of USB 2.0 D+ and D− lines in host controllers, hubs, or peripheral devices exposed to user-handled connectors. IC Role / Device Role: Unidirectional TVS diode placed between signal trace and ground, clamping ESD-induced voltage spikes before they reach USB transceiver inputs. Use Value: Maintains 480 Mbps signal integrity while surviving ±15 kV air and ±30 kV contact ESD per IEC 61000-4-2, preventing interface lockup or PHY damage. |
Use Scenario: ESD protection for HDMI Display Data Channel (DDC) and Consumer Electronics Control (CEC) lines in TVs, monitors, and set-top boxes. IC Role / Device Role: Single-line unidirectional suppressor on 5 V-tolerant I²C-compatible bus lines, grounded at system GND. Use Value: 160–180 pF capacitance avoids timing violations on 100 kHz DDC clock; 27 V clamping protects EEPROM and microcontroller I²C pins. |
| Industrial Sensor I/O | Medical Device Front-Ends |
Use Scenario: Transient protection for analog sensor outputs (e.g., 4–20 mA loop receivers or thermocouple amplifiers) in factory automation equipment. IC Role / Device Role: Ground-referenced clamping diode on unidirectional analog output lines subject to cable discharge events and EFT bursts. Use Value: 1 nA leakage prevents measurement error in µA-level current loops; 22.5 A surge rating handles inductive switching transients in PLC environments. |
Use Scenario: ESD hardening of patient-connected ECG electrode inputs or pulse oximeter photodiode amplifier inputs in Class II medical devices. IC Role / Device Role: First-stage protection on low-noise, high-impedance biopotential signal paths prior to instrumentation amplifier input. Use Value: Sub-200 pF capacitance avoids degrading amplifier stability or noise performance; 30 kV ESD rating meets IEC 61000-4-2 clinical handling requirements. |
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 per line, but dual-channel); lower clamping (14.5 V @ 12 A); bidirectional configuration. | Designed for multi-line protection (4-channel); requires redesign for single-line use due to internal topology. | Select only if consolidating multiple protected lines onto one package; not drop-in for single-line 12 V standoff needs. |
| Vishay ESDE0402MUT5G | Lower VRWM (5.5 V); tighter capacitance (12 pF); same SOD-323 package; 30 kV ESD rating. | Optimized for 3.3 V/5 V logic; unsuitable for 12 V signal rails due to premature conduction. | Use only for sub-6 V interfaces; incompatible with 12 V analog or industrial control lines protected by PESD12VS1UA. |
Compared with NUP4105MR6T1G and ESDE0402MUT5G, PESD12VS1UA uniquely balances 12 V standoff, 27 V clamping, and 160–180 pF for mid-voltage analog/data lines - making it optimal for USB 2.0, industrial I/O, and medical sensor front-ends where voltage headroom and capacitance trade-offs are critical.
Availability
PESD12VS1UA is available at Aetrix Electronics and suitable for USB 2.0 interface protection, HDMI DDC channel hardening, and industrial sensor I/O conditioning 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 global semiconductor expert 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 board-level transient immunity in space-constrained, high-speed electronic systems - emphasizing low capacitance, precise clamping, and IEC-compliant robustness.
FAQ
What is the maximum working voltage this diode can protect?
The PESD12VS1UA has a reverse standoff voltage (VRWM) of 12 V, meaning it reliably blocks up to 12 V in normal operation without significant leakage. It begins clamping above ~13.3 V (breakdown voltage min), making it suitable for protecting 12 V nominal signal lines such as industrial analog outputs or legacy serial interfaces.
Can this device be used on bidirectional signal lines like I²C?
No - PESD12VS1UA is unidirectional and only protects signals referenced to ground with defined polarity (e.g., positive-only voltage swings). For bidirectional buses like I²C, a bidirectional ESD protector such as PESD5V0S1BA must be used instead to avoid forward conduction during low-state signaling.
How does the SOD323 package affect PCB layout for optimal ESD performance?
Placement within 2 mm of the connector, direct grounding of the cathode pad to a solid ground plane via multiple vias, and minimizing trace length between the diode and protected line are essential. The SOD323's small size reduces parasitic inductance, but poor layout can degrade clamping response - especially for <1 ns ESD rise times.
Is PESD12VS1UA qualified for automotive applications?
No - per Nexperia's revision history (v.2, April 2023), this part is explicitly non-automotive qualified. It lacks AEC-Q200 stress testing and automotive-grade process controls. For automotive use, select the automotive-qualified variant PESD12VS1UAX (Q suffix) or consult Nexperia's automotive-grade ESD portfolio.
PESD12VS1UA,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Package/Case:
- SC-76, SOD-323
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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,115 FAQ
1.How can I place an order for PESD12VS1UA,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PESD12VS1UA,115 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,115 reliable?
The price and inventory of PESD12VS1UA,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PESD12VS1UA,115 is usually 5 days.
3.What payment methods are accepted for PESD12VS1UA,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PESD12VS1UA,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PESD12VS1UA,115?
PESD12VS1UA,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PESD12VS1UA,115 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,115?
For technical support, including PESD12VS1UA,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PESD12VS1UA,115 requirements.
6.How does Aetrix verify that PESD12VS1UA,115 is sourced from the original manufacturer or authorized distributors?
All PESD12VS1UA,115 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,115 meets industry standards.
7.What is the process for return or replacement of PESD12VS1UA,115?
All PESD12VS1UA,115 units undergo pre-shipment inspection (PSI). If there is an issue with PESD12VS1UA,115, 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,115 part is unused and in its original packaging.
Return procedure for PESD12VS1UA,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PESD12VS1UA,115 Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
