Nexperia USA Inc. PESD12VS1UJ,115
- Part No.:
- PESD12VS1UJ,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- SC-90, SOD-323F
- Datasheet:
-
PESD12VS1UJ,115.pdf
- Description:
- TVS DIODE 12VWM 27VC SOD323F
- Quantity:
- Payment:

- Shipping:

Inventory:45,027
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Product details
Overview
PESD12VS1UJ from Nexperia is a unidirectional ESD protection diode in SC-90 (SOD323F) 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 delivers 19 V clamping voltage at 5 A, 160–180 pF capacitance at 1 MHz, and 12 V reverse standoff voltage - optimized for high-speed data lines in portable electronics.
For engineers reviewing the PESD12VS1UJ datasheet, PESD12VS1UJ pinout, PESD12VS1UJ application, or PESD12VS1UJ equivalent, this device is selected for low-capacitance transient suppression on USB, audio, and sensor interfaces where leakage (<1 nA at 5 V), fast response, and minimal signal distortion are critical.
Technical Context
This unidirectional TVS diode operates as a clamping device in forward-biased configuration for negative transients and reverse-biased for positive transients relative to ground. Its breakdown voltage is 13.3–15.75 V at 5 mA, with differential resistance of 5–100 Ω, enabling rapid voltage limiting during ESD events.
The device complies with IEC 61000-4-2 (±30 kV contact, ±15 kV air) and IEC 61000-4-5 (22.5 A surge), and exhibits thermal resistance of 290 K/W (junction-to-ambient) on FR4 PCB. Its 1.7 × 1.25 × 0.7 mm SOD323F footprint supports dense layout near connectors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage | 12 V - maximum continuous operating voltage before conduction begins; defines safe signal swing range for protected line. |
| Clamping Voltage | 19 V at 5 A - peak voltage seen by downstream circuit during ESD event; ensures IC-level protection below logic damage thresholds. |
| Diode Capacitance | 160–180 pF at 1 MHz, 0 V - low enough for USB 2.0 and audio line integrity; avoids signal rise-time degradation. |
| ESD Withstand | ±30 kV contact discharge (IEC 61000-4-2 Level 4) - exceeds industrial and consumer immunity requirements. |
| Peak Pulse Current | 22.5 A (8/20 µs, IEC 61000-4-5) - handles lightning-induced surges on external-facing ports. |
| Leakage Current | 1 nA typical at 5 V - negligible loading on high-impedance analog or battery-powered signal paths. |
| Breakdown Voltage | 13.3–15.75 V at 5 mA - ensures reliable turn-on margin above 12 V standoff while avoiding false triggering. |
Pinout & Package
Package: SC-90 (SOD323F), plastic surface-mounted, 2-lead, 1.7 mm × 1.25 mm × 0.7 mm body. Marking bar denotes cathode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Connected to system ground or reference node; carries transient current to ground during positive ESD events. |
| 2 (A) | Anode | Connected to protected signal line; conducts during negative transients (forward bias) and clamps during positive transients (reverse breakdown). |
Key Features
| Feature | Design Value |
|---|---|
| Unidirectional clamping architecture | Enables polarity-specific protection on DC-biased lines without affecting normal signal swing direction. |
| 600 W peak pulse power rating | Sustains high-energy transients without thermal runaway; validated per IEC 61000-4-5 waveform. |
| Low 160–180 pF capacitance | Preserves signal integrity on 480 Mbps USB 2.0 and stereo audio lines; avoids resonance or attenuation. |
| 1 nA reverse leakage at 5 V | Minimizes power loss and offset error in precision analog front-ends and battery-operated sensors. |
| SC-90 (SOD323F) footprint | Enables placement within 2 mm of I/O connector; reduces inductance in transient return path for optimal clamping. |
Applications
| USB 2.0 Data Lines | Smartphone Audio Jacks |
|---|---|
|
Use Scenario: Protecting D+ and D− pins of USB 2.0 interfaces against ESD during cable insertion or handling. IC Role / Device Role / Timing Role: Unidirectional clamping diode placed between signal line and ground, activated only during overvoltage excursions. Use Value: 160–180 pF capacitance avoids USB eye diagram closure; 19 V clamping prevents PHY latch-up while maintaining full-speed signaling. |
Use Scenario: Shielding 3.5 mm TRRS audio jack left/right channels and microphone input from user-handling ESD. IC Role / Device Role / Timing Role: Signal-line TVS element referenced to common ground, conducting only during transient events. Use Value: Sub-1 nA leakage preserves bias stability in electret microphone preamps; low capacitance prevents treble roll-off. |
| Medical Sensor Interfaces | Industrial CAN Bus Terminals |
|
Use Scenario: Safeguarding analog output lines of wearable ECG or SpO₂ sensors exposed to clinical environment ESD. IC Role / Device Role / Timing Role: Low-leakage transient suppressor on single-ended analog signal path, grounded at system reference. Use Value: 1 nA leakage avoids DC offset drift in µV-level bio-potential amplifiers; 12 V standoff matches sensor rail limits. |
Use Scenario: Adding secondary ESD protection at physical layer connectors of industrial CAN FD nodes. IC Role / Device Role / Timing Role: Unidirectional clamp on CAN_H or CAN_L line, referenced to chassis ground. Use Value: 22.5 A surge rating handles induced transients on factory-floor cabling; compact SOD323F fits tight connector footprints. |
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 ESDE0402MUTAG | 12 V standoff, 18 V clamping at 5 A, 120 pF - lower capacitance but 20% lower surge rating (18 A). | Better for >100 Mbps differential lines; less robust for field-deployed surge exposure. | Select when ultra-low capacitance dominates over surge margin; verify layout grounding for 120 pF effectiveness. |
| Vishay VEML6030X01 | Not applicable - optical ambient light sensor; invalid alternative. | N/A | Excluded: not an ESD protection device. |
Compared with PESD12VS1UJ, ESDE0402MUTAG offers tighter capacitance control for high-speed lines but sacrifices 20% peak surge current handling; no valid second alternative meets all key specs (12 V VRWM, ≥22 A IPP, ≤19 V VCL, unidirectional, SOD323F-compatible footprint).
Availability
PESD12VS1UJ is available at Aetrix Electronics and suitable for USB interface protection, smartphone audio subsystems, medical sensor front-ends, and industrial CAN terminal hardening requiring stable component supply across production lifecycles.
Supply support for PESD12VS1UJ 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 essential efficiency technologies, delivering high-performance, reliable discrete, logic, and MOSFET solutions for automotive, industrial, and consumer markets.
PESD12VS1UJ belongs to Nexperia's ESD protection portfolio, engineered specifically for low-capacitance, high-surge unidirectional clamping on space-constrained, high-reliability signal lines.
FAQ
What is the maximum operating temperature for PESD12VS1UJ?
The PESD12VS1UJ has a junction temperature limit of 150 °C and an ambient operating range of −55 °C to +150 °C. Thermal resistance from junction to ambient is 290 K/W on standard FR4 PCB, so power dissipation must remain below 420 mW under worst-case conditions to avoid exceeding Tj.
Can PESD12VS1UJ protect bidirectional signal lines like RS-485?
No - PESD12VS1UJ is unidirectional and only protects against transients of one polarity relative to ground. For bidirectional lines such as RS-485, a symmetric (bidirectional) TVS like PESD5V0S1BA is required to clamp both positive and negative excursions.
How does the 19 V clamping voltage relate to a 3.3 V or 5 V system?
The 19 V clamping voltage is the peak voltage seen at the protected node during a 5 A ESD event - it does not imply system rail compatibility. The diode only conducts during transients; normal operation occurs below 12 V VRWM, making it safe for 3.3 V/5 V data lines when properly grounded.
Is PESD12VS1UJ automotive-qualified?
No - per Nexperia's revision history (April 2023), this part is explicitly non-automotive qualified. It lacks AEC-Q200 stress testing and automotive-grade reliability validation. For automotive use, consult Nexperia's PESD12VS1UJ-Q series or equivalent qualified alternatives.
PESD12VS1UJ,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Package/Case:
- SC-90, SOD-323F
- 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-323F
PESD12VS1UJ,115 FAQ
1.How can I place an order for PESD12VS1UJ,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PESD12VS1UJ,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 PESD12VS1UJ,115 reliable?
The price and inventory of PESD12VS1UJ,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PESD12VS1UJ,115 is usually 5 days.
3.What payment methods are accepted for PESD12VS1UJ,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PESD12VS1UJ,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PESD12VS1UJ,115?
PESD12VS1UJ,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PESD12VS1UJ,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 PESD12VS1UJ,115?
For technical support, including PESD12VS1UJ,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PESD12VS1UJ,115 requirements.
6.How does Aetrix verify that PESD12VS1UJ,115 is sourced from the original manufacturer or authorized distributors?
All PESD12VS1UJ,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 PESD12VS1UJ,115 meets industry standards.
7.What is the process for return or replacement of PESD12VS1UJ,115?
All PESD12VS1UJ,115 units undergo pre-shipment inspection (PSI). If there is an issue with PESD12VS1UJ,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 PESD12VS1UJ,115 part is unused and in its original packaging.
Return procedure for PESD12VS1UJ,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PESD12VS1UJ,115 Tags

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