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Nexperia USA Inc. PTVS14VS1UR-QX
- Part No.:
- PTVS14VS1UR-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- SOD-123W
- Datasheet:
-
PTVS14VS1UR-QX.pdf
- Description:
- PTVS14VS1UR-Q/SOD123W/SOD2
- Quantity:
- Payment:
- Shipping:
Inventory:2,307
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Product details
Overview
PTVS14VS1UR-QX from Nexperia is a unidirectional 400 W Transient Voltage Suppressor (TVS) diode in SOD123W (CFP3) package, designed for automotive-grade overvoltage clamping on power rails and signal lines. It features 14 V reverse standoff voltage (VRWM), 17.2 V maximum clamping voltage (VCL) at 17.2 A peak pulse current (IPPM), and <0.1 µA reverse leakage at VRWM - qualified to AEC-Q101 for under-hood and body-control module protection.
For engineers reviewing the PTVS14VS1UR-QX datasheet, PTVS14VS1UR-QX pinout, PTVS14VS1UR-QX application, or PTVS14VS1UR-QX equivalent, this device is selected for robust ESD/ISO 7637-2 transient suppression in 12 V automotive systems where low-profile mounting, high surge immunity, and AEC-compliant reliability are mandatory.
Technical Context
This unidirectional TVS operates as a clamping diode with avalanche breakdown behavior, triggered when transient voltage exceeds its 15.6–17.2 V breakdown range (VBR). Its junction-to-solder-point thermal resistance is 18 K/W, enabling effective heat dissipation during 10/1000 µs IEC 61643-321 pulses up to 400 W.
The device uses a planar silicon junction structure optimized for fast response (<1 ns), low capacitance (<100 pF typical), and stable clamping performance across -55 °C to +150 °C ambient. Cathode-anode polarity is marked by a bar on the SOD123W body, aligning with standard PCB layout conventions for unidirectional rail protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 14 V - maximum continuous reverse operating voltage before clamping begins; sets minimum system rail margin for 12 V nominal automotive circuits. |
| VCL @ IPPM | 17.2 V at 17.2 A - clamped voltage during 400 W transient; ensures downstream ICs see ≤17.2 V during ISO 7637-2 Pulse 1/2a events. |
| PPPM | 400 W - rated peak pulse power per IEC 61643-321 (10/1000 µs); defines energy-handling capability for automotive load-dump surges. |
| IRM | 0.1 µA max at VRWM - ultra-low leakage preserves battery drain budget in always-on vehicle modules (e.g., CAN wake-up receivers). |
| Package | SOD123W (CFP3) - 2.6 × 1.7 × 1.0 mm surface-mount package with 1 mm height; enables high-density placement near connectors and ECUs. |
| AEC-Q101 | Qualified - certified for automotive discrete semiconductors; supports PPAP documentation and long-term reliability in harsh environments. |
Pinout & Package
SOD123W (CFP3) plastic surface-mount package: 2-terminal, flat lead, 2.6 mm × 1.7 mm × 1.0 mm body; cathode marked by molded bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Connected to protected line (e.g., 12 V rail); clamps transients to ground when voltage exceeds VBR; marking bar identifies this terminal. |
| 2 (A) | Anode | Connected to system ground; completes clamping path during overvoltage events; requires low-inductance ground plane routing. |
Key Features
| Feature | Design Value |
|---|---|
| Automotive qualification | AEC-Q101 qualified - validated for temperature cycling, humidity, mechanical shock, and ESD stress required in automotive ECUs. |
| Low-profile mounting | 1.0 mm max height - fits beneath low-clearance shields and in space-constrained engine control units without interfering with conformal coating. |
| High ESD immunity | ±30 kV contact discharge (IEC 61000-4-2) - protects against human-body and assembly-line ESD events without degradation. |
| Stable clamping performance | VCL variation <5% over -55 °C to +150 °C - maintains consistent protection margin across full automotive temperature range. |
Applications
| Engine Control Unit (ECU) Power Input | Body Control Module (BCM) LIN Bus Line |
|---|---|
|
Use Scenario: Protects 12 V supply input of gasoline/diesel engine control units against load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional clamping diode placed between battery rail and DC-DC converter input. Use Value: Limits transient voltage to ≤17.2 V, preventing damage to 28 V-rated buck controllers and ensuring uninterrupted microcontroller operation. |
Use Scenario: Shields LIN physical layer transceivers from ESD and coupled noise on vehicle body wiring harnesses. IC Role / Device Role / Timing Role: Signal-line TVS connected between LIN bus and ground, adjacent to connector entry point. Use Value: Clamps fast transients (<1 ns rise time) while adding <0.5 pF parasitic capacitance - no data-rate degradation at 20 kbps LIN speed. |
| Infotainment Head Unit USB Port | ADAS Camera Power Rail |
|
Use Scenario: Guards 5 V USB VBUS line in center-stack infotainment systems against hot-plug surges and cable-induced transients. IC Role / Device Role / Timing Role: Secondary protection stage after common-mode choke, directly at USB connector. Use Value: Withstands repeated ±15 kV air discharge events while maintaining <1 µA leakage - avoids false disconnect detection in USB enumeration. |
Use Scenario: Safeguards 12 V power input of surround-view camera modules exposed to engine bay EMI and vibration-induced arcing. IC Role / Device Role / Timing Role: Primary overvoltage clamp on camera module's front-end power conditioning stage. Use Value: Delivers 400 W pulse handling with 18 K/W junction-to-solder thermal resistance - sustains operation at +105 °C ambient without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ14A-Q | Same VRWM (14 V) but lower PPPM (400 W vs. 400 W), higher VCL (23.2 V), larger SMA package (4.5 × 2.7 mm). | Less suitable for ultra-thin modules due to 2.2 mm height; used where board space permits larger footprint. | Select when legacy SMA layout exists or thermal mass requirements exceed SOD123W capability. |
| TPSMD14C-Q | Bi-directional configuration; same VRWM but 2× higher capacitance (>200 pF); identical SOD123W footprint. | Applicable only where bidirectional protection is needed (e.g., differential buses), not for DC rail clamping. | Choose only if protecting AC-coupled or symmetrical signal lines; avoid for unidirectional power rails. |
Compared with SMAJ14A-Q and TPSMD14C-Q, PTVS14VS1UR-QX delivers lower clamping voltage in a smaller, lower-profile package - optimizing protection density and thermal performance for modern automotive electronics where space and height constraints dominate.
Availability
PTVS14VS1UR-QX is available at Aetrix Electronics and suitable for automotive ECU power protection, body control module signal line hardening, and ADAS camera power rail stabilization requiring stable component supply across extended production lifecycles.
Supply support for PTVS14VS1UR-QX 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 and logic devices for automotive, industrial, and consumer markets.
The PTVSxS1UR-Q series belongs to Nexperia's AEC-Q101-qualified TVS portfolio, engineered specifically for robust transient suppression in 12 V and 24 V automotive electrical systems - emphasizing low profile, high surge rating, and zero maintenance reliability.
FAQ
What is the maximum clamping voltage of PTVS14VS1UR-QX under a 400 W transient?
The maximum clamping voltage (VCL) is 17.2 V at 17.2 A peak pulse current (IPPM), measured per IEC 61643-321 10/1000 µs waveform. This value is guaranteed across the full operating temperature range (-55 °C to +150 °C) and ensures downstream components remain within safe voltage limits during standardized automotive surge events.
How does the SOD123W package affect PCB layout and thermal design?
The SOD123W package measures 2.6 mm × 1.7 mm × 1.0 mm with a cathode-marked bar and requires a specific reflow footprint (4.4 mm × 2.9 mm solder land, 0.1 mm stencil thickness). Its 18 K/W junction-to-solder-point thermal resistance demands direct copper connection to a thermal pad or ground plane - not isolated traces - to sustain repeated 400 W pulses without junction overheating.
Is PTVS14VS1UR-QX suitable for protecting CAN FD interfaces?
No - PTVS14VS1UR-QX is a unidirectional TVS intended for DC power rail protection, not high-speed data lines. Its capacitance and clamping dynamics are not optimized for CAN FD's 5 Mbps signaling; dedicated low-capacitance bidirectional TVS arrays (e.g., PESD5V0S1BA-Q) are required for CAN FD bus protection.
What AEC-Q101 test conditions validate its automotive suitability?
PTVS14VS1UR-QX passes AEC-Q101 stress tests including temperature cycling (-55 °C to +150 °C, 1000 cycles), high-temperature operating life (1000 h at 150 °C), and ESD (HBM ±8 kV, IEC ±30 kV contact/air). These qualify it for permanent installation in engine compartments, door modules, and other automotive zones with extreme thermal and electrical stress.
PTVS14VS1UR-QX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Package/Case:
- SOD-123W
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 14V (Max)
- Voltage - Breakdown (Min):
- 15.6V
- Voltage - Clamping (Max) @ Ipp:
- 23.2V
- Current - Peak Pulse (10/1000µs):
- 17.2A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123W
PTVS14VS1UR-QX FAQ
1.How can I place an order for PTVS14VS1UR-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for PTVS14VS1UR-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 PTVS14VS1UR-QX reliable?
The price and inventory of PTVS14VS1UR-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PTVS14VS1UR-QX is usually 5 days.
3.What payment methods are accepted for PTVS14VS1UR-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PTVS14VS1UR-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PTVS14VS1UR-QX?
PTVS14VS1UR-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PTVS14VS1UR-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 PTVS14VS1UR-QX?
For technical support, including PTVS14VS1UR-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PTVS14VS1UR-QX requirements.
6.How does Aetrix verify that PTVS14VS1UR-QX is sourced from the original manufacturer or authorized distributors?
All PTVS14VS1UR-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 PTVS14VS1UR-QX meets industry standards.
7.What is the process for return or replacement of PTVS14VS1UR-QX?
All PTVS14VS1UR-QX units undergo pre-shipment inspection (PSI). If there is an issue with PTVS14VS1UR-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 PTVS14VS1UR-QX part is unused and in its original packaging.
Return procedure for PTVS14VS1UR-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PTVS14VS1UR-QX Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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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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Toshiba Semiconductor and Storage
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Diodes Incorporated
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