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Nexperia USA Inc. PESD12VS1UJ-QX
- Part No.:
- PESD12VS1UJ-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- SC-90, SOD-323F
- Datasheet:
-
PESD12VS1UJ-QX.pdf
- Description:
- PESD12VS1UJ-Q/SOD323F/SOD323F
- Quantity:
- Payment:
- Shipping:
Inventory:7,532
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Product details
Overview
PESD12VS1UJ-Q from Nexperia is a unidirectional ESD protection diode in SC-90 (SOD323F) package, designed to safeguard single signal lines against IEC 61000-4-2 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 1 nA leakage at 5 V - ideal for high-speed USB, HDMI, or automotive infotainment data lines.
For engineers reviewing the PESD12VS1UJ-Q datasheet, PESD12VS1UJ-Q pinout, PESD12VS1UJ-Q application, or PESD12VS1UJ-Q equivalent, key selection criteria include clamping performance under 5–22.5 A transient current, low capacitance for signal integrity, AEC-Q101 qualification for automotive use, and SOD323F footprint compatibility with space-constrained PCB layouts.
Technical Context
This unidirectional TVS diode operates as a clamping device in forward-biased configuration during positive transients and reverse-biased during negative surges relative to ground. Its breakdown voltage (13.3–15.75 V) ensures reliable conduction above 12 V standoff, while differential resistance (5–100 Ω) governs dynamic clamping behavior under fast pulses.
The device uses silicon PN-junction technology optimized for sub-nanosecond response to ESD events. Thermal resistance from junction to solder point is 35 K/W, enabling effective heat dissipation through the cathode tab during repetitive surge events - critical for automotive CAN/LIN bus line protection where ambient temperatures reach 125 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage | 12 V - maximum continuous DC or RMS signal voltage before leakage rises significantly; sets operating margin for 3.3 V/5 V/12 V data lines. |
| Clamping Voltage (5 A) | 19 V - peak voltage across diode during 5 A IEC 61000-4-2 pulse; defines upper limit of protected IC's absolute maximum rating. |
| Diode Capacitance | 160–180 pF at 1 MHz, 0 V - directly impacts signal rise time and insertion loss on high-speed interfaces like USB 2.0 or audio codecs. |
| ESD Withstand | ±30 kV contact discharge per IEC 61000-4-2 Level 4 - exceeds industrial and automotive immunity requirements without external circuitry. |
| Peak Pulse Current | 22.5 A (8/20 µs) per IEC 61000-4-5 - supports robust surge protection on power-supply-adjacent signal lines in infotainment head units. |
| Leakage Current | 1 nA at 5 V - negligible loading on high-impedance sensor or analog front-end inputs; avoids DC offset or battery drain in portable devices. |
| AEC-Q101 Qualified | Yes - validated for automotive temperature range (−55 °C to +150 °C) and mechanical stress; suitable for under-hood and cabin ECUs. |
Pinout & Package
SC-90 (SOD323F) surface-mount plastic package: 2-pin, 1.7 mm × 1.25 mm × 0.7 mm body, cathode marked by bar on top surface. Optimized for automated placement and reflow soldering on dense PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to system ground or low-impedance return path; marking bar identifies this terminal; primary heat-sink path via solder pad (Rth(j-sp) = 35 K/W). |
| 2 | Anode (A) | Connected to protected signal line; conducts during positive transients (anode > cathode) and blocks during normal operation below 12 V. |
Key Features
| Feature | Design Value |
|---|---|
| Low Clamping Voltage | 19 V at 5 A ensures protected ICs (e.g., USB transceivers rated to 20 V abs max) remain within safe operating area during ESD events. |
| Ultra-Low Leakage | 1 nA at 5 V prevents signal distortion or power loss in battery-powered medical sensors and precision analog front-ends. |
| High-Speed Response | Sub-nanosecond turn-on enables suppression of ESD pulses with <1 ns rise time (IEC 61000-4-2), preserving signal fidelity on HDMI or MIPI lines. |
| Automotive-Grade Reliability | AEC-Q101 qualification confirms performance over 150 °C junction temperature and thermal cycling - essential for ADAS camera modules and telematics units. |
| Compact Footprint | SOD323F package fits within 1.7 mm × 1.25 mm area - enables protection at board edge connectors without sacrificing routing space for high-density RF sections. |
Applications
| USB 2.0 Data Lines | Automotive Infotainment |
|---|---|
|
Use Scenario: Protecting D+ and D− lines in vehicle-mounted USB host ports from ESD during cable insertion and hot-plug events. IC Role / Device Role / Timing Role: Unidirectional clamping diode placed between connector and USB PHY, referenced to chassis ground. Use Value: 19 V clamping prevents damage to USB transceivers rated ≤20 V, while 160–180 pF capacitance maintains full-speed (480 Mbps) signal integrity. |
Use Scenario: Shielding LVDS video signals from display modules in center-stack infotainment systems against dashboard ESD and load-dump induced transients. IC Role / Device Role / Timing Role: Single-line TVS on each LVDS pair leg, mounted adjacent to FPC connector to minimize inductance. Use Value: AEC-Q101 qualification ensures stable operation at 105 °C ambient; 22.5 A surge rating handles coupled transients from nearby motor drivers. |
| Portable Audio Interfaces | Industrial Sensor Nodes |
|
Use Scenario: Guarding analog audio input/output jacks (3.5 mm TRRS) in Bluetooth headphones and portable DACs against user-hand ESD. IC Role / Device Role / Timing Role: Anode tied to signal line, cathode to AGND; leverages low 1 nA leakage to avoid DC bias shift in op-amp circuits. Use Value: 30 kV ESD withstand eliminates need for secondary protection layers; 180 pF capacitance avoids high-frequency roll-off in 20 kHz audio band. |
Use Scenario: Securing RS-485/422 differential pairs in factory-floor PLC I/O modules exposed to EFT and surge from relay switching. IC Role / Device Role / Timing Role: One PESD12VS1UJ-Q per line (A/B), cathodes tied to isolated signal ground, enabling bidirectional transient shunting. Use Value: 12 V standoff aligns with common 12 V RS-485 supply rails; thermal resistance of 35 K/W supports sustained operation during repeated 22.5 A surges. |
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 SZ1.5SMC12A | Higher clamping (30 V at 12.5 A), larger DO-214AB package (4.5 mm × 3.5 mm), 1000 pF capacitance. | Targeted at power-rail protection, not high-speed signal lines; unsuitable for USB/HDMI due to excessive capacitance and size. | Select only for low-frequency, high-energy surge scenarios where PCB space and signal speed are non-critical. |
| Vishay VE1206A0120M | Same SOD323F package, 12 V standoff, but 25 V clamping at 5 A and 120 pF capacitance; not AEC-Q101 qualified. | Lacks automotive qualification; lower clamping voltage than PESD12VS1UJ-Q reduces safety margin for 20 V-rated ICs. | Consider for cost-sensitive consumer electronics where AEC-Q101 is unnecessary and 25 V clamping is acceptable. |
Compared with SZ1.5SMC12A and VE1206A0120M, PESD12VS1UJ-Q uniquely balances ultra-low capacitance (160–180 pF), automotive qualification, and tight 19 V clamping - making it the only viable option for space-constrained, high-speed, automotive-grade signal line protection.
Availability
PESD12VS1UJ-Q is available at Aetrix Electronics and suitable for automotive infotainment systems, USB 2.0 peripheral interfaces, and industrial RS-485 nodes requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for PESD12VS1UJ-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 device belongs to Nexperia's Automotive-Qualified ESD Protection Diode product line, engineered specifically for robust transient suppression in safety-critical automotive signal paths and high-integrity industrial communication interfaces.
FAQ
What is the maximum operating temperature for PESD12VS1UJ-Q in automotive applications?
The device is qualified per AEC-Q101 for junction temperatures up to 150 °C and ambient operating range of −55 °C to +150 °C. Its thermal resistance from junction to solder point is 35 K/W, enabling reliable operation in engine bay or under-dash environments when mounted on ≥1 cm² copper pad.
Can PESD12VS1UJ-Q protect bidirectional signal lines like RS-485?
No - it is unidirectional and protects only positive transients relative to ground. For true bidirectional lines, two devices must be used back-to-back (anode-to-anode), or a dedicated bidirectional TVS such as PESD5V0S1BA should be selected instead.
How does its 160–180 pF capacitance affect USB 2.0 signal integrity?
At 480 Mbps, this capacitance introduces <0.5 dB insertion loss below 200 MHz and preserves eye diagram opening per USB-IF compliance tests. Layout best practices - short traces, ground stitching vias near the device - maintain full-speed timing margins.
Is the 30 kV ESD rating applicable to both contact and air discharge?
Yes - the datasheet specifies ±30 kV contact discharge and ±15 kV air discharge per IEC 61000-4-2. Contact discharge is the more severe test condition and determines the device's suitability for direct human interaction points like USB ports and audio jacks.
PESD12VS1UJ-QX 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:
- 23.5V
- Current - Peak Pulse (10/1000µs):
- 22.5A (8/20µs)
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- Telecom
- 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-QX FAQ
1.How can I place an order for PESD12VS1UJ-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for PESD12VS1UJ-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 PESD12VS1UJ-QX reliable?
The price and inventory of PESD12VS1UJ-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PESD12VS1UJ-QX is usually 5 days.
3.What payment methods are accepted for PESD12VS1UJ-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PESD12VS1UJ-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PESD12VS1UJ-QX?
PESD12VS1UJ-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PESD12VS1UJ-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 PESD12VS1UJ-QX?
For technical support, including PESD12VS1UJ-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PESD12VS1UJ-QX requirements.
6.How does Aetrix verify that PESD12VS1UJ-QX is sourced from the original manufacturer or authorized distributors?
All PESD12VS1UJ-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 PESD12VS1UJ-QX meets industry standards.
7.What is the process for return or replacement of PESD12VS1UJ-QX?
All PESD12VS1UJ-QX units undergo pre-shipment inspection (PSI). If there is an issue with PESD12VS1UJ-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 PESD12VS1UJ-QX part is unused and in its original packaging.
Return procedure for PESD12VS1UJ-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PESD12VS1UJ-QX Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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ESD5Z3.3T1G
onsemi
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D5V0H1B2LP-7B
Diodes Incorporated
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D5V0P1B2LP-7B
Diodes Incorporated
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DESD5V0U1BA-7
Diodes Incorporated
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ESD5Z5.0T1G
onsemi
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DESD5V0U1BB-7
Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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PESD2V0Y1BSFYL
Nexperia USA Inc.
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DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
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D5V0L1B2WS-7
Diodes Incorporated
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