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Nexperia USA Inc. PTVS8V0S1UTR-QX
- Part No.:
- PTVS8V0S1UTR-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- SOD-123W
- Datasheet:
-
PTVS8V0S1UTR-QX.pdf
- Description:
- PTVS8V0S1UTR-Q/SOD123W/SOD2
- Quantity:
- Payment:
- Shipping:
Inventory:6,998
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Product details
Overview
PTVS8V0S1UTR-Q 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 8.0 V reverse standoff voltage (VRWM), 9.36 V typical breakdown voltage (VBR), 13.6 V clamping voltage (VCL) at 5 mA, and junction temperature rating up to 185 °C.
For engineers reviewing the PTVS8V0S1UTR-Q datasheet, PTVS8V0S1UTR-Q pinout, PTVS8V0S1UTR-Q application, or PTVS8V0S1UTR-Q equivalent, this device is selected for robust ESD/ISO 7637-2 surge suppression in engine control units, battery management systems, and 12 V rail protection where thermal stability and AEC-Q101 qualification are mandatory.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-anode polarity, activated when reverse voltage exceeds VRWM = 8.0 V. Its I-V characteristic follows standard avalanche breakdown behavior, with low leakage (IRM = 0.03 µA at VRWM) and stable clamping performance across −55 °C to +185 °C ambient range.
The device complies with IEC 61643-321 (10/1000 µs waveform) and achieves 400 W peak pulse power (PPPM) at 25 °C, derating to ~220 W at 150 °C per typical thermal curve. Its 1 mm profile and SOD123W footprint support dense PCB layouts in space-constrained automotive modules.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 8.0 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC blocking threshold on protected line. |
| VBR (typ) | 9.36 V - Typical breakdown voltage at 5 mA; ensures reliable turn-on margin above VRWM for fast transient response. |
| VCL (at IPPM) | 13.6 V - Clamping voltage at rated peak pulse current; limits downstream IC stress during 400 W transients. |
| PPPM | 400 W - Peak pulse power handling per IEC 61643-321 (10/1000 µs); enables suppression of ISO 7637-2 Pulse 1/2a/5a surges. |
| Tj max | 185 °C - Maximum junction temperature; supports under-hood operation without derating in engine bay environments. |
| IRM | 0.03 µA - Reverse leakage at VRWM; minimizes standby power loss in always-on automotive circuits. |
| AEC-Q101 | Qualified - Certified for automotive discrete semiconductors; validates reliability for 15+ year vehicle service life. |
Pinout & Package
SOD123W (CFP3) surface-mount plastic package: 2.6 mm × 1.7 mm × 1.0 mm body, flat lead profile, marking bar indicating cathode. Optimized for reflow soldering with recommended stencil thickness 0.1 mm and defined wave solder land pattern.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Connected to protected line (e.g., 12 V rail); absorbs positive transients when referenced to ground. |
| 2 (A) | Anode | Connected to system ground; completes clamping path during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| High-temperature operation | Junction rating up to 185 °C enables placement near heat sources (e.g., ECUs, inverters) without thermal derating penalties. |
| AEC-Q101 qualification | Validated for automotive use including HTOL, TC, HAST, and ESD testing-reduces qualification burden for Tier 1 suppliers. |
| Low-profile SOD123W | 1.0 mm height allows integration into slim modules (e.g., ADAS cameras, junction boxes) where Z-axis space is constrained. |
| Low leakage current | 0.03 µA IRM at 8.0 V minimizes quiescent current draw in always-on vehicle networks (e.g., CAN FD wake-up lines). |
| ESD robustness | 30 kV contact/air discharge (IEC 61000-4-2) and 8 kV HBM protect against assembly and field-handling ESD events. |
Applications
| Engine Control Unit (ECU) Power Input | Automotive Battery Management System (BMS) |
|---|---|
|
Use Scenario: Protection of 12 V supply input to microcontroller and sensor interface circuitry in gasoline/diesel engine control modules exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between battery rail and local LDO input, conducting only during negative-going transients relative to ground. Use Value: Limits voltage to ≤13.6 V during 400 W ISO 7637-2 Pulse 5a (load dump), preventing latch-up or oxide damage in 3.3 V/5 V logic supplies. |
Use Scenario: Surge suppression on cell monitor IC supply lines in high-voltage BMS stacks, where transients couple from adjacent switching cells or CAN bus noise. IC Role / Device Role / Timing Role: Standoff protector on isolated 5 V auxiliary rail feeding analog front-end and communication ICs; responds within nanoseconds to sub-100 ns spikes. Use Value: Maintains <0.03 µA leakage at 8 V to avoid drift in precision voltage references while clamping fast ESD events to safe levels for 16-bit ADCs. |
| Body Control Module (BCM) LIN Bus Line | Start-Stop System Voltage Regulator Input |
|
Use Scenario: ESD and burst protection on LIN physical layer transceivers connected to door modules, seat controls, and lighting nodes. IC Role / Device Role / Timing Role: Low-capacitance unidirectional TVS placed directly at connector entry point, shunting transients before reaching LIN transceiver ESD structures. Use Value: With 30 kV IEC 61000-4-2 rating and 13.6 V clamping, prevents permanent damage to LIN PHY during factory handling or roadside diagnostics. |
Use Scenario: Input protection for buck regulators powering infotainment and telematics during repeated engine cranking cycles with severe battery sag and rebound spikes. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 12 V input stage of wide-input DC-DC converter; coordinates with upstream fuse and downstream OVP circuitry. Use Value: Sustains 185 °C junction temperature during sustained cranking (−40 °C to +125 °C ambient), eliminating thermal shutdown during critical start sequences. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ8.0A-Q | Same VRWM (8.0 V), lower PPPM (400 W vs. SMAJ series' 400 W), but higher VCL (13.6 V vs. 14.4 V) and larger SMA package (2.8 mm height). | Less suitable for ultra-low-profile modules due to 2.8 mm height; requires larger PCB area and higher thermal resistance (Rth(j-a) ≈ 100 K/W vs. 70 K/W). | Select PTVS8V0S1UTR-Q when board height ≤1.0 mm is required or AEC-Q101 qualification must be documented per part number. |
| TPSMA6L8.0A | Identical VRWM and VCL, but rated for 600 W PPPM and uses DO-214AC package; not AEC-Q101 qualified in standard grade. | Higher power handling suits industrial motor drives, but lacks automotive qualification documentation and has higher IRM (1 µA vs. 0.03 µA). | Choose PTVS8V0S1UTR-Q for automotive production programs requiring certified AEC-Q101 compliance and minimal leakage in always-on domains. |
Compared with SMAJ8.0A-Q and TPSMA6L8.0A, PTVS8V0S1UTR-Q delivers identical electrical protection at 8 V with superior thermal performance (185 °C Tj), lower leakage, and guaranteed automotive qualification-making it optimal for space- and reliability-critical vehicle subsystems.
Availability
PTVS8V0S1UTR-Q is available at Aetrix Electronics and suitable for automotive power supply protection, battery management systems, and high-temperature industrial control applications requiring stable component supply across multi-year production cycles.
Supply support for PTVS8V0S1UTR-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 essential semiconductors for automotive, industrial, and computing markets, with manufacturing rooted in process technology leadership and AEC-Q101 validation rigor.
The PTVSxS1UTR-Q series belongs to Nexperia's automotive-grade TVS portfolio, engineered specifically for under-hood and chassis-mounted electronics where thermal resilience, surge immunity, and long-term parametric stability are non-negotiable.
FAQ
What is the maximum clamping voltage of PTVS8V0S1UTR-Q during a 400 W transient event?
The clamping voltage VCL is 13.6 V at 5 mA test current, and rises to approximately 29.4 V at its rated peak pulse current (IPPM = 29.4 A) under IEC 61643-321 10/1000 µs waveform conditions. This value is confirmed in Table 8 of the datasheet and represents worst-case voltage seen by downstream circuitry during full-power surge events.
Does PTVS8V0S1UTR-Q support bidirectional transient suppression?
No, PTVS8V0S1UTR-Q is a unidirectional TVS diode with cathode-anode polarity. It suppresses only positive transients on the cathode side relative to anode (ground). For bidirectional protection, two devices in series opposition or a dedicated bidirectional part like PTVS8V0S1UTR-Q's counterpart in the bidirectional PTVS8V0S1UTR-QB series would be required.
How does the 185 °C junction temperature rating impact PCB layout decisions?
The 185 °C Tj rating allows direct placement near heat-generating components (e.g., MOSFETs, inductors) without thermal derating, but effective heat dissipation still requires adequate copper pour on the cathode pad (≥1 cm² per Table 6) and adherence to the specified SOD123W reflow footprint. Thermal resistance drops from 220 K/W (standard FR4) to 18 K/W when soldered to a thermal pad, enabling sustained operation in high-ambient zones.
Is the marking code 'C8' on the device body sufficient for traceability and authenticity verification?
Yes, 'C8' is the official marking code for PTVS8V0S1UTR-Q per Table 4 of the datasheet, laser-etched on the cathode-side surface. Combined with the Nexperia logo and date code, it enables full traceability to wafer lot and assembly batch. Authentic units exhibit consistent marking depth, contrast, and alignment with the cathode bar per Figure 5 package outline.
PTVS8V0S1UTR-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):
- 8V (Max)
- Voltage - Breakdown (Min):
- 8.89V
- Voltage - Clamping (Max) @ Ipp:
- 13.6V
- Current - Peak Pulse (10/1000µs):
- 29.4A
- 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
PTVS8V0S1UTR-QX FAQ
1.How can I place an order for PTVS8V0S1UTR-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for PTVS8V0S1UTR-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 PTVS8V0S1UTR-QX reliable?
The price and inventory of PTVS8V0S1UTR-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PTVS8V0S1UTR-QX is usually 5 days.
3.What payment methods are accepted for PTVS8V0S1UTR-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PTVS8V0S1UTR-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PTVS8V0S1UTR-QX?
PTVS8V0S1UTR-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PTVS8V0S1UTR-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 PTVS8V0S1UTR-QX?
For technical support, including PTVS8V0S1UTR-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PTVS8V0S1UTR-QX requirements.
6.How does Aetrix verify that PTVS8V0S1UTR-QX is sourced from the original manufacturer or authorized distributors?
All PTVS8V0S1UTR-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 PTVS8V0S1UTR-QX meets industry standards.
7.What is the process for return or replacement of PTVS8V0S1UTR-QX?
All PTVS8V0S1UTR-QX units undergo pre-shipment inspection (PSI). If there is an issue with PTVS8V0S1UTR-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 PTVS8V0S1UTR-QX part is unused and in its original packaging.
Return procedure for PTVS8V0S1UTR-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PTVS8V0S1UTR-QX Tags
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ESD9B5.0ST5G
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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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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