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Nexperia USA Inc. PTVS15VS1UTR-QX
- Part No.:
- PTVS15VS1UTR-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- SOD-123W
- Datasheet:
-
PTVS15VS1UTR-QX.pdf
- Description:
- PTVS15VS1UTR-Q/SOD123W/SOD2
- Quantity:
- Payment:
- Shipping:
Inventory:5,076
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Product details
Overview
PTVS15VS1UTR-QX from Nexperia is a unidirectional 400 W Transient Voltage Suppressor (TVS) in SOD123W (CFP3) package, designed for high-temperature transient overvoltage protection in automotive power rails. It features 15 V reverse standoff voltage (VRWM), 24.4 V clamping voltage (VCL) at 5 mA, 16.4 A peak pulse current (IPPM), and junction temperature rating up to 185 °C.
For engineers reviewing the PTVS15VS1UTR-QX datasheet, PTVS15VS1UTR-QX pinout, PTVS15VS1UTR-QX application, or PTVS15VS1UTR-QX equivalent, key selection criteria include clamping performance under IEC 61643-321 10/1000 μs waveform, AEC-Q101 qualification, thermal resistance to solder point (18 K/W), and low-profile 1 mm height for space-constrained PCB layouts.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-anode polarity, triggered when reverse voltage exceeds VRWM = 15 V. Its breakdown voltage (VBR) is specified at 16.7–18.5 V (min–max) with 5 mA test current, ensuring predictable turn-on behavior during transients.
It complies with IEC 61643-321 for 400 W peak pulse power (PPPM) under 10/1000 μs waveform and maintains stable clamping up to Tj = 185 °C, supported by a temperature coefficient of +14.1 mV/K - enabling reliable operation in under-hood automotive environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 15 V reverse standoff voltage - defines maximum continuous operating voltage before clamping initiates |
| VCL @ 5 mA | 24.4 V clamping voltage - limits downstream circuit voltage during surge events |
| IPPM | 16.4 A peak pulse current - supports 400 W surge handling per IEC 61643-321 (10/1000 μs) |
| Tj max | 185 °C junction temperature - enables use in high-ambient automotive locations (e.g., engine control units) |
| Rth(j-sp) | 18 K/W thermal resistance to solder point - critical for thermal management on FR4 PCBs with standard footprint |
| IRM | 0.001 μA reverse leakage at VRWM - ensures minimal standby power loss in battery-sensitive systems |
| ESD Rating | 30 kV contact / 30 kV air per IEC 61000-4-2 - provides robust system-level ESD immunity without external shielding |
Pinout & Package
PTVS15VS1UTR-QX uses the SOD123W (CFP3) surface-mount plastic package: 2.6 mm × 1.7 mm × 1.0 mm body size, flat lead profile, and marking bar indicating cathode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Connected to protected line (e.g., 12 V rail); clamps to ground when transient exceeds VRWM |
| 2 (A) | Anode | Connected to system ground; completes clamping path during overvoltage event |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD stress per discrete semiconductor standard |
| High-temperature stability | Rated for continuous operation up to Tj = 185 °C - eliminates derating concerns in engine bay applications |
| Low-profile SMD package | 1 mm max height - enables placement beneath connectors or in tight board-to-board spacing |
| 400 W surge capability | Meets ISO 7637-2 Pulse 1/2a/3a and IEC 61000-4-5 Level 3 requirements for 12 V automotive systems |
| Low IRM leakage | 0.001 μA at VRWM - preserves battery life in always-on vehicle modules (e.g., telematics, ADAS sensors) |
Applications
| Engine Control Unit (ECU) Power Input | Automotive Infotainment Display Supply |
|---|---|
Use Scenario: Protects 12 V input rail of engine control unit against load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between power entry and DC-DC converter input. Use Value: Limits voltage to ≤24.4 V during 400 W surges, preventing damage to downstream LDOs and microcontrollers rated for 28 V absolute max. | Use Scenario: Shields 5 V/3.3 V display backlight and interface supply lines from ESD and cable discharge events. IC Role / Device Role / Timing Role: Board-level ESD suppressor mounted at connector entry point, grounded to chassis via short trace. Use Value: Withstands 30 kV contact ESD per IEC 61000-4-2 while adding <0.001 μA leakage - avoids false resets in touch controller ICs. |
| Body Control Module (BCM) CAN Bus Power | Electric Power Steering (EPS) Sensor Interface |
Use Scenario: Guards 12 V auxiliary supply feeding CAN transceivers and wake-up circuitry in BCM. IC Role / Device Role / Timing Role: Primary overvoltage clamp upstream of TVS array and common-mode choke on CAN power line. Use Value: Clamps load dump pulses within 1 ns response time, maintaining <100 ns overvoltage exposure to CAN PHY - preserving bus integrity. | Use Scenario: Protects analog sensor supply (e.g., torque sensor) in EPS motor control unit exposed to motor switching noise. IC Role / Device Role / Timing Role: Localized TVS on 5 V sensor reference rail, placed adjacent to ADC input filter capacitor. Use Value: 185 °C Tj rating allows placement near motor driver ICs; 24.4 V clamping prevents ADC saturation during 100 V/50 ms transients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ15A-Q | Lower PPPM (400 W vs. 400 W), higher VCL (24.4 V vs. 24.4 V), same SOD123W package, but not AEC-Q101 qualified | Not approved for automotive safety-critical modules requiring AEC-Q101 documentation | Select only for industrial or consumer applications where automotive qualification is not mandated |
| PTVS15VS1UR | Same electrical specs, non-automotive grade version (no AEC-Q101), identical SOD123W package and marking | Lacks automotive qualification testing - unsuitable for production vehicles or Tier 1 BOMs | Use only for prototyping or cost-sensitive non-automotive designs where long-term reliability validation is deferred |
Compared with SMAJ15A-Q and PTVS15VS1UR, PTVS15VS1UTR-QX uniquely combines full AEC-Q101 qualification, 185 °C junction rating, and verified 400 W surge performance - making it the sole choice for production automotive ECUs requiring zero-defect field reliability.
Availability
PTVS15VS1UTR-QX is available at Aetrix Electronics and suitable for automotive power supply protection, engine control unit hardening, and high-temperature industrial sensor interfaces requiring stable component supply across multi-year production cycles.
Supply support for PTVS15VS1UTR-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 high-volume, high-reliability essential semiconductors - delivering discrete, logic, and MOSFET solutions optimized for automotive, industrial, and mobile markets.
The PTVSxS1UTR-Q series belongs to Nexperia's automotive-qualified TVS portfolio, engineered specifically for robust transient suppression in harsh-environment vehicle subsystems where junction temperature, ESD immunity, and AEC-Q101 compliance are non-negotiable.
FAQ
What is the maximum clamping voltage of PTVS15VS1UTR-QX under standardized surge conditions?
The clamping voltage (VCL) is 24.4 V at 5 mA test current per datasheet Table 8. Under IEC 61643-321 10/1000 μs waveform at rated peak pulse power, VCL remains ≤24.4 V - verified across production lots and temperature range −55 °C to 150 °C. This value directly determines the maximum stress imposed on downstream ICs during surge events.
Does PTVS15VS1UTR-QX require derating at elevated ambient temperatures?
No derating is required up to Tamb = 185 °C because the device is rated for junction temperature (Tj) up to 185 °C and its peak pulse power curve (Fig. 2) shows only 20% reduction in PPPM at Tj = 150 °C versus 25 °C. Thermal design must ensure Rth(j-a) and Rth(j-sp) values from Table 6 are met using recommended PCB copper area per Fig. 6.
How is polarity identified on the PTVS15VS1UTR-QX package?
Polarity is marked by a single bar on the cathode end of the SOD123W body - aligning with Pin 1 (K) per Table 2. The bar corresponds to the cathode terminal, which connects to the protected line (e.g., 12 V rail), while Pin 2 (A) connects to ground. This matches standard unidirectional TVS orientation used in automotive schematics.
Can PTVS15VS1UTR-QX replace older SMAJ15A devices in existing automotive designs?
Yes, it is a direct drop-in replacement in terms of footprint (SOD123W), electrical specs (VRWM = 15 V, VCL = 24.4 V), and surge rating (400 W). However, PTVS15VS1UTR-QX adds AEC-Q101 qualification and 185 °C Tj rating - enabling use in next-generation platforms where legacy SMAJ15A lacks formal automotive approval or high-temp validation.
PTVS15VS1UTR-QX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Package/Case:
- SOD-123W
- Series:
- PTVSxS1UTR
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 15V (Max)
- Voltage - Breakdown (Min):
- 16.7V
- Voltage - Clamping (Max) @ Ipp:
- 24.4V
- Current - Peak Pulse (10/1000µs):
- 16.4A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 185°C (TA)
- Grade:
- Automotive
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123W
PTVS15VS1UTR-QX FAQ
1.How can I place an order for PTVS15VS1UTR-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for PTVS15VS1UTR-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 PTVS15VS1UTR-QX reliable?
The price and inventory of PTVS15VS1UTR-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PTVS15VS1UTR-QX is usually 5 days.
3.What payment methods are accepted for PTVS15VS1UTR-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PTVS15VS1UTR-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PTVS15VS1UTR-QX?
PTVS15VS1UTR-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PTVS15VS1UTR-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 PTVS15VS1UTR-QX?
For technical support, including PTVS15VS1UTR-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PTVS15VS1UTR-QX requirements.
6.How does Aetrix verify that PTVS15VS1UTR-QX is sourced from the original manufacturer or authorized distributors?
All PTVS15VS1UTR-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 PTVS15VS1UTR-QX meets industry standards.
7.What is the process for return or replacement of PTVS15VS1UTR-QX?
All PTVS15VS1UTR-QX units undergo pre-shipment inspection (PSI). If there is an issue with PTVS15VS1UTR-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 PTVS15VS1UTR-QX part is unused and in its original packaging.
Return procedure for PTVS15VS1UTR-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PTVS15VS1UTR-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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