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Nexperia USA Inc. PTVS12VS1UTR,115
- Part No.:
- PTVS12VS1UTR,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- SOD-123W
- Datasheet:
-
PTVS12VS1UTR,115.pdf
- Description:
- TVS DIODE 12VWM 19.9VC SOD123W
- Quantity:
- Payment:
- Shipping:
Inventory:362
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Product details
Overview
PTVS12VS1UTR from Nexperia is a unidirectional 400 W Transient Voltage Suppressor (TVS) in SOD123W (CFP3) package, designed for high-temperature transient overvoltage protection in power rails. It features 12 V reverse standoff voltage (VRWM), 19.9 V clamping voltage (VCL) at 5 mA, 20.1 A peak pulse current (IPPM), and operates up to 185 °C junction temperature.
For engineers reviewing the PTVS12VS1UTR datasheet, PTVS12VS1UTR pinout, PTVS12VS1UTR application, or PTVS12VS1UTR equivalent, this device is selected for robust ESD and surge protection in industrial power management, automotive under-hood modules, and high-reliability DC/DC converter inputs where thermal stability and low-profile mounting are critical.
Technical Context
This TVS diode uses an avalanche breakdown mechanism to clamp transients with a 10/1000 μs waveform per IEC 61643-321. Its unidirectional configuration protects against positive-going surges on grounded-rail systems, with cathode-anode polarity defined by the marking bar.
Thermal design is enabled by low Rth(j-sp) of 18 K/W to solder point and stable performance across −55 °C to +185 °C ambient, supported by <0.005 μA reverse leakage at VRWM and ±0.5 mV/K temperature coefficient of breakdown voltage.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 12 V - maximum continuous reverse operating voltage before clamping begins |
| VCL @ IPPM | 19.9 V - clamped voltage during 20.1 A transient, limiting downstream stress |
| PPPM | 400 W - peak pulse power handling capability under standardized 10/1000 μs surge |
| IRM | 0.005 μA - ultra-low leakage ensures minimal standby power loss in battery-critical systems |
| Tj max | 185 °C - enables placement near hot components (e.g., power MOSFETs, inductors) without derating |
| Rth(j-sp) | 18 K/W - low thermal resistance to solder point supports efficient PCB heat extraction |
| ESD Rating | 30 kV contact discharge (IEC 61000-4-2) - withstands severe electrostatic events without degradation |
Pinout & Package
SOD123W (CFP3) surface-mount plastic package: 2.6 mm × 1.7 mm × 1.0 mm body height, flat leads, cathode marked by bar.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Connected to protected line (e.g., +12 V rail); absorbs positive transients toward ground |
| 2 (A) | Anode | Connected to system ground; completes clamping path during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| High-temperature operation | Junction rated to 185 °C - eliminates need for thermal derating in engine control units or industrial motor drives |
| Low-profile SMD package | 1.0 mm height - enables use in space-constrained layouts such as portable medical devices or dense power modules |
| Stable clamping performance | ±0.5 mV/K tempco - ensures predictable VCL across wide ambient ranges without recalibration |
| Robust ESD immunity | 30 kV contact discharge - exceeds IEC 61000-4-2 Level 4, reducing field failure risk in handling-sensitive environments |
| Low IRM leakage | 0.005 μA at VRWM - preserves battery life in always-on 12 V systems like telematics or sensor nodes |
Applications
| Automotive Engine Control Unit (ECU) | Industrial PLC Power Input |
|---|---|
Use Scenario: Protects 12 V supply rail from load-dump spikes (ISO 7637-2 Pulse 5a) and alternator ripple in under-hood ECUs. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery feed and DC/DC input, clamping within nanoseconds. Use Value: Withstands 185 °C under-hood temperatures while maintaining 19.9 V clamping to prevent regulator latch-up or MCU brownout. | Use Scenario: Shields programmable logic controller (PLC) 24 V DC input from switching surges induced by relay coils or solenoid drivers. IC Role / Device Role / Timing Role: Primary overvoltage clamp on field-side power entry, coordinated with upstream fuses. Use Value: 400 W PPPM rating handles repetitive 10/1000 μs transients common in factory automation without parameter drift. |
| Medical Infusion Pump Power Stage | Telecom Remote Radio Unit (RRU) |
Use Scenario: Safeguards isolated 12 V bias rail in battery-powered infusion pumps exposed to ESD during clinical handling. IC Role / Device Role / Timing Role: Final-stage TVS on secondary-side DC output of isolated flyback converter. Use Value: 30 kV ESD rating and 0.005 μA leakage ensure patient safety compliance and multi-year battery runtime. | Use Scenario: Protects 48 V DC power input of outdoor radio units from lightning-induced surges on telecom tower feeds. IC Role / Device Role / Timing Role: First-line transient suppressor before DC-DC conversion and RF front-end circuitry. Use Value: Stable 185 °C operation allows direct PCB mounting near heatsinks, eliminating discrete heatsink requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ12A | Lower PPPM (400 W same), but higher VCL (23.2 V), larger SMA package (2.4 mm height) | Less suitable for ultra-low-profile designs; requires more board area and has higher thermal resistance | Select when legacy footprint compatibility outweighs height and thermal constraints |
| 1.5SMC12A | Same VRWM and VCL, but 1.5 kW PPPM and DO-214AB package (4.5 mm height) | Over-specified power rating increases cost and size; unsuitable for space-constrained high-temp zones | Choose only if system-level surge testing demands >400 W margin and board space permits |
Compared with SMAJ12A and 1.5SMC12A, PTVS12VS1UTR delivers identical 12 V protection with superior thermal integration (18 K/W vs. >40 K/W), 1 mm profile, and guaranteed 185 °C operation-making it optimal for next-gen compact, high-temperature power interfaces.
Availability
PTVS12VS1UTR is available at Aetrix Electronics and suitable for industrial PLC power inputs, automotive engine control units, medical infusion pump power stages, and telecom remote radio units requiring stable component supply across extended temperature ranges.
Supply support for PTVS12VS1UTR 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 PTVSxS1UTR series belongs to Nexperia's high-temperature TVS portfolio, engineered specifically for transient protection in thermally aggressive environments where conventional TVS diodes fail-targeting under-hood automotive, industrial motor drives, and outdoor telecom infrastructure.
FAQ
What is the maximum clamping voltage of PTVS12VS1UTR at its rated peak pulse current?
The clamping voltage (VCL) is 19.9 V at 5 mA test current, corresponding to a peak pulse current (IPPM) of 20.1 A under the IEC 61643-321 10/1000 μs waveform. This value is measured at Tj = 25 °C and remains stable up to 150 °C per datasheet Table 8, ensuring consistent protection margin across operating conditions.
Can PTVS12VS1UTR be used in bidirectional signal line protection?
No. PTVS12VS1UTR is a unidirectional TVS diode with cathode-anode polarity, intended only for DC rail protection where the protected line is referenced to ground. For bidirectional signal lines (e.g., RS-485, USB), a symmetric bidirectional TVS such as PUSB3FR or ESD5V3U1U must be used instead.
How does the 1 mm package height impact thermal performance in high-power applications?
The 1 mm SOD123W package achieves Rth(j-sp) = 18 K/W to the cathode solder point-lower than standard SMA (≈45 K/W) due to optimized copper slug and short thermal path. This enables effective heat transfer into the PCB without external heatsinking, even during repeated 400 W pulses in confined spaces.
Is PTVS12VS1UTR compliant with AEC-Q200 for automotive use?
No. While PTVS12VS1UTR operates reliably up to 185 °C junction temperature and is widely used in under-hood automotive applications, it is not AEC-Q200 qualified. For AEC-Q200-compliant alternatives, consider Nexperia's Automotive-Qualified PTVSxS1UTR-A series, which undergoes additional stress testing and lot traceability per AEC standards.
PTVS12VS1UTR,115 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):
- 12V
- Voltage - Breakdown (Min):
- 13.3V
- Voltage - Clamping (Max) @ Ipp:
- 19.9V
- Current - Peak Pulse (10/1000µs):
- 20.1A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 185°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123W
PTVS12VS1UTR,115 FAQ
1.How can I place an order for PTVS12VS1UTR,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PTVS12VS1UTR,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 PTVS12VS1UTR,115 reliable?
The price and inventory of PTVS12VS1UTR,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PTVS12VS1UTR,115 is usually 5 days.
3.What payment methods are accepted for PTVS12VS1UTR,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PTVS12VS1UTR,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PTVS12VS1UTR,115?
PTVS12VS1UTR,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PTVS12VS1UTR,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 PTVS12VS1UTR,115?
For technical support, including PTVS12VS1UTR,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PTVS12VS1UTR,115 requirements.
6.How does Aetrix verify that PTVS12VS1UTR,115 is sourced from the original manufacturer or authorized distributors?
All PTVS12VS1UTR,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 PTVS12VS1UTR,115 meets industry standards.
7.What is the process for return or replacement of PTVS12VS1UTR,115?
All PTVS12VS1UTR,115 units undergo pre-shipment inspection (PSI). If there is an issue with PTVS12VS1UTR,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 PTVS12VS1UTR,115 part is unused and in its original packaging.
Return procedure for PTVS12VS1UTR,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PTVS12VS1UTR,115 Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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onsemi
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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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DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
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Diodes Incorporated
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