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Nexperia USA Inc. PTVS18VP1UTP,115
- Part No.:
- PTVS18VP1UTP,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- SOD-128
- Datasheet:
-
PTVS18VP1UTP,115.pdf
- Description:
- TVS DIODE 18VWM 29.2VC SOD128
- Quantity:
- Payment:
- Shipping:
Inventory:2,685
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Product details
Overview
PTVS18VP1UTP,115 from Nexperia is a unidirectional 600 W Transient Voltage Suppressor (TVS) in SOD128 (CFP5) package, designed for high-temperature transient overvoltage protection with VRWM = 18 V, VBR = 20.0–22.1 V, VCL = 29.2 V at IPPM = 20.5 A, and junction temperature rating up to 185 °C. It serves as primary clamping protection on DC power rails in industrial control modules.
For engineers reviewing the PTVS18VP1UTP,115 datasheet, PTVS18VP1UTP,115 pinout, PTVS18VP1UTP,115 application, or PTVS18VP1UTP,115 equivalent, key selection criteria include clamping voltage margin at rated peak pulse current, thermal resistance to solder point (Rth(j-sp) = 12 K/W), reverse leakage at elevated temperature (IRM ≤ 0.1 µA at Tj = 150 °C), and compatibility with reflow/wave soldering footprints per SOD128 layout.
Technical Context
This unidirectional TVS diode operates in avalanche breakdown mode during transients, delivering precise clamping with low dynamic impedance. Its VBR tolerance (±5%) and temperature coefficient of breakdown voltage (+18.5 mV/K) ensure stable threshold behavior across -55 °C to +185 °C ambient range.
The device uses a planar silicon junction structure optimized for high-energy 10/1000 µs waveform compliance (IEC 61643-321), with thermal design enabling direct mounting on FR4 or ceramic PCBs. Cathode-anode polarity is marked by a bar on the SOD128 body, defining unidirectional conduction path.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| PPPM | 600 W - Peak pulse power handling under 10/1000 µs surge, defining maximum transient energy absorption capability |
| VRWM | 18 V - Maximum continuous reverse operating voltage before significant leakage; sets minimum system rail margin |
| VBR | 20.0–22.1 V - Breakdown voltage range at 5 mA test current; defines onset of clamping action |
| VCL @ IPPM | 29.2 V at 20.5 A - Clamped voltage during rated surge, determining protected circuit's maximum stress level |
| IRM | 0.001 µA @ VRWM - Reverse leakage at standoff voltage, critical for low-power standby integrity |
| Tj max | 185 °C - Absolute maximum junction temperature, enabling operation in under-hood or motor-drive environments |
| Rth(j-sp) | 12 K/W - Thermal resistance from junction to cathode solder point, guiding PCB copper area requirements |
Pinout & Package
SOD128 (CFP5) surface-mount plastic package: 2-terminal, 3.8 mm × 2.6 mm × 1.0 mm body, 4 mm lead pitch, flat lead profile optimized for automated placement and thermal dissipation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to protected line side; marking bar identifies this terminal; carries full surge current during clamping |
| 2 | Anode (A) | Connected to ground reference; completes clamping path; must be routed with low-inductance ground plane |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Qualified per Stress Test Qualification for Discrete Semiconductors - supports deployment in automotive subsystems where reliability is mandated |
| High-temperature stability | Junction rating up to 185 °C enables use in engine control units, inverters, and industrial drives without derating |
| Low-profile SOD128 package | 1.0 mm height allows integration into space-constrained PCB layouts while maintaining thermal performance via solder-point conduction |
| Low IRM at elevated Tj | ≤0.1 µA reverse leakage at 150 °C ensures minimal standby power loss in always-on systems |
| ESD robustness | 30 kV contact discharge (IEC 61000-4-2) and >8 kV HBM rating provide immunity against handling and system-level ESD events |
Applications
| Industrial Motor Drives | Programmable Logic Controllers (PLCs) |
|---|---|
Use Scenario: Protection of 24 V DC input rails against inductive switching transients from solenoid valves and relay coils. IC Role / Device Role / Timing Role: Unidirectional TVS placed between rail and chassis ground to clamp positive-going surges within 1 ns response time. Use Value: VCL = 29.2 V ensures downstream regulators and microcontrollers remain below absolute maximum ratings during 20.5 A transients. |
Use Scenario: Guarding isolated 18–30 V power inputs in modular I/O cards exposed to field wiring noise and lightning-induced surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp on power entry, coordinated with upstream fuse and downstream LC filtering. Use Value: 185 °C Tj rating permits uninterrupted operation inside sealed enclosures with ambient temperatures up to 105 °C. |
| Power-over-Ethernet (PoE) Injectors | Industrial Battery Management Systems |
Use Scenario: Secondary protection on 48 V DC output stage of PoE injectors against cable discharge events and hot-swap transients. IC Role / Device Role / Timing Role: Fast-response clamping device located immediately after DC-DC converter output filter. Use Value: 600 W PPPM rating absorbs multiple 10/1000 µs surges without degradation, supporting Class 4 PoE+ compliance. |
Use Scenario: Overvoltage suppression on 12–24 V battery monitor IC supply lines in forklifts and AGVs operating in high-EMI factory environments. IC Role / Device Role / Timing Role: Rail protector placed between battery connector and protection IC, referenced to local ground plane. Use Value: Rth(j-sp) = 12 K/W enables effective heat transfer to large copper pour, preventing thermal runaway during repeated surge events. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ18A | DO-214AC package; VRWM = 18 V; VCL = 29.2 V at 20.5 A; Tj max = 150 °C; Rth(j-a) = 60 K/W | Larger footprint (4.5 × 2.7 mm); lower thermal performance; not AEC-Q101 qualified | Select when cost sensitivity outweighs high-temperature or automotive qualification needs |
| SMCJ18A | DO-214AB package; same VRWM/VCL; PPPM = 1500 W; Tj max = 175 °C; Rth(j-a) = 25 K/W | 3× larger body (7.1 × 6.2 mm); higher surge rating but 3× board area; no SOD128 footprint compatibility | Choose for higher-energy surge environments where PCB space permits and thermal mass is available |
Compared with SMAJ18A, PTVS18VP1UTP,115 offers superior thermal management and automotive qualification in a smaller footprint; versus SMCJ18A, it trades peak power headroom for compactness and high-temperature reliability in constrained layouts.
Availability
PTVS18VP1UTP,115 is available at Aetrix Electronics and suitable for industrial motor drives, programmable logic controllers (PLCs), and Power-over-Ethernet (PoE) injectors requiring stable component supply, long-term lifecycle assurance, and traceable sourcing for production ramp-up.
Supply support for PTVS18VP1UTP,115 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 leading Dutch semiconductor manufacturer specializing in high-performance, high-reliability discrete and analog components, with global manufacturing and R&D centers.
The PTVSxP1UTP series belongs to Nexperia's high-temperature TVS portfolio, engineered specifically for robust transient suppression in automotive subsystems, industrial automation, and power conversion equipment operating beyond 150 °C ambient.
FAQ
What is the clamping voltage of PTVS18VP1UTP,115 at its rated peak pulse current?
The clamping voltage (VCL) is 29.2 V measured at IPPM = 20.5 A using the 10/1000 µs waveform per IEC 61643-321. This value is guaranteed across the full operating temperature range and defines the maximum voltage seen by downstream circuitry during a worst-case surge event.
Is PTVS18VP1UTP,115 qualified for automotive applications?
Yes - PTVS18VP1UTP,115 is AEC-Q101 qualified per the official Nexperia product data sheet revision v.2 (December 2025). It meets stress test requirements for discrete semiconductors used in automotive electronic systems, including temperature cycling, humidity bias, and mechanical shock testing.
How does the SOD128 package affect thermal performance compared to DO-214 variants?
The SOD128 (CFP5) package delivers Rth(j-sp) = 12 K/W to the cathode solder point - significantly lower than typical DO-214AC (SMA) packages (~60 K/W). This enables more efficient heat transfer to PCB copper, allowing sustained operation at 185 °C junction temperature without external heatsinking.
Can PTVS18VP1UTP,115 replace PTVS18VP1UTP without changes to the PCB layout?
Yes - PTVS18VP1UTP,115 and PTVS18VP1UTP share identical SOD128 (CFP5) package dimensions, pinout, and soldering footprint per Nexperia's official reflow and wave soldering diagrams (Fig. 7 and Fig. 8). The ",115" suffix denotes tape-and-reel packaging; electrical and thermal characteristics are unchanged.
PTVS18VP1UTP,115 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Package/Case:
- SOD-128
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 18V
- Voltage - Breakdown (Min):
- 20V
- Voltage - Clamping (Max) @ Ipp:
- 29.2V
- Current - Peak Pulse (10/1000µs):
- 20.5A
- Power - Peak Pulse:
- 600W
- 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-128/CFP5
PTVS18VP1UTP,115 FAQ
1.How can I place an order for PTVS18VP1UTP,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PTVS18VP1UTP,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 PTVS18VP1UTP,115 reliable?
The price and inventory of PTVS18VP1UTP,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PTVS18VP1UTP,115 is usually 5 days.
3.What payment methods are accepted for PTVS18VP1UTP,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PTVS18VP1UTP,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PTVS18VP1UTP,115?
PTVS18VP1UTP,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PTVS18VP1UTP,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 PTVS18VP1UTP,115?
For technical support, including PTVS18VP1UTP,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PTVS18VP1UTP,115 requirements.
6.How does Aetrix verify that PTVS18VP1UTP,115 is sourced from the original manufacturer or authorized distributors?
All PTVS18VP1UTP,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 PTVS18VP1UTP,115 meets industry standards.
7.What is the process for return or replacement of PTVS18VP1UTP,115?
All PTVS18VP1UTP,115 units undergo pre-shipment inspection (PSI). If there is an issue with PTVS18VP1UTP,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 PTVS18VP1UTP,115 part is unused and in its original packaging.
Return procedure for PTVS18VP1UTP,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PTVS18VP1UTP,115 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
-
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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