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Nexperia USA Inc. PTVS40VS1UTR,115
- Part No.:
- PTVS40VS1UTR,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- SOD-123W
- Datasheet:
-
PTVS40VS1UTR,115.pdf
- Description:
- TVS DIODE 40VWM 64.5VC SOD123W
- Quantity:
- Payment:
- Shipping:
Inventory:2,970
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Product details
Overview
PTVS40VS1UTR,115 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 VRWM = 40 V, VBR(min) = 44.4 V, VCL = 64.5 V at IPPM = 6.2 A (10/1000 µs), and operates up to Tj = 185 °C - enabling robust surge suppression in industrial power supplies and automotive under-hood modules.
For engineers reviewing the PTVS40VS1UTR,115 datasheet, PTVS40VS1UTR,115 pinout, PTVS40VS1UTR,115 application, or PTVS40VS1UTR,115 equivalent, key selection criteria include clamping voltage margin vs. protected IC VDD tolerance, thermal resistance to PCB copper area, junction temperature derating above 25 °C, and compatibility with IEC 61000-4-2 (±30 kV contact discharge) and IEC 61643-321 (10/1000 µs waveform).
Technical Context
This unidirectional TVS diode uses an avalanche breakdown structure optimized for fast response (<1 ns) to ESD and lightning-induced transients. Its low Rth(j-sp) = 18 K/W enables effective heat transfer from junction to cathode solder point, supporting sustained operation at Tamb = 185 °C when mounted on ceramic substrates.
The device exhibits a positive temperature coefficient of breakdown voltage (SZ = +0.5 mV/K at VRWM = 40 V), ensuring stable clamping performance across wide temperature ranges. Its 1 mm profile and 2.6 mm × 1.7 mm footprint meet space-constrained requirements in DC-DC converter input stages and motor driver power rails.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 40 V - maximum continuous reverse operating voltage before leakage exceeds 0.1 µA; sets upper limit for protected line nominal voltage. |
| VBR (min) | 44.4 V at IR = 1 mA - guaranteed avalanche initiation threshold; ensures reliable turn-on before downstream IC damage. |
| VCL | 64.5 V at IPPM = 6.2 A (10/1000 µs) - peak clamped voltage seen by protected circuit; must stay below IC absolute maximum rating. |
| PPPM | 400 W - peak pulse power handling per IEC 61643-321; defines surge energy absorption capability without degradation. |
| Tj max | 185 °C - maximum junction temperature; enables use in under-hood, industrial furnace, or high-power LED driver environments. |
| Rth(j-a) | 70 K/W on Al₂O₃ ceramic PCB - thermal resistance defining self-heating rise per watt; critical for long-duration surge duty cycles. |
| ESD Rating | ±30 kV contact discharge (IEC 61000-4-2) - qualifies for direct interface protection in exposed connectors and sensor inputs. |
Pinout & Package
SOD123W (CFP3) surface-mount plastic package: 2.6 mm × 1.7 mm × 1.0 mm body, flat lead, low-profile design with cathode marked by bar.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Connected to protected line (e.g., 40 V rail); marking bar identifies this terminal; carries full surge current during clamping. |
| 2 (A) | Anode | Connected to ground reference; forms low-impedance path to earth during transient; requires low-inductance PCB trace routing. |
Key Features
| Feature | Design Value |
|---|---|
| High-temperature operation | Tj ≤ 185 °C and Tamb ≤ 185 °C - eliminates derating in harsh thermal environments such as engine control units and industrial inverters. |
| Low-profile SMD package | 1.0 mm height - enables placement beneath heatsinks or in stacked PCB assemblies where Z-axis clearance is constrained. |
| Low leakage current | IRM = 0.001 µA at VRWM - minimizes standby power loss in battery-backed systems and high-impedance sensing nodes. |
| Fast transient response | < 1 ns turn-on time - suppresses sub-microsecond ESD events before logic-level ICs experience latch-up or gate oxide rupture. |
| Robust ESD immunity | ±30 kV contact discharge - meets Level 4 IEC 61000-4-2 without external series impedance, simplifying front-end protection design. |
Applications
| Industrial Power Supply Protection | Automotive Engine Control Unit (ECU) |
|---|---|
|
Use Scenario: 40 V DC input rail in programmable logic controller (PLC) power module subjected to load dump and inductive switching transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between input rail and chassis ground to clamp surges within 1 ns, limiting voltage to 64.5 V. Use Value: Prevents failure of 75 V-rated input MOSFETs and 48 V-rated DC-DC controllers during ISO 7637-2 Pulse 5a events. |
Use Scenario: 12 V–42 V battery-supplied ECU subsystem exposed to alternator load dump and ISO 16750-2 transients. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main power rail, positioned upstream of LDO regulators and microcontroller VDD pins. Use Value: Maintains rail integrity at 185 °C ambient, enabling under-hood deployment without thermal shutdown or parameter drift. |
| High-Temperature Motor Drive Board | Outdoor Telecom Power Interface |
|
Use Scenario: Gate driver supply rail in HVAC inverter board operating continuously at 150 °C ambient near power semiconductors. IC Role / Device Role / Timing Role: Secondary protection element after bulk capacitor, absorbing residual spikes that bypass primary MOV-based filtering. Use Value: Delivers stable 400 W peak power handling even at Tj = 170 °C, verified via thermal derating curve in Fig. 2. |
Use Scenario: Outdoor base station power entry point subject to lightning-induced surges and long-duration AC line faults. IC Role / Device Role / Timing Role: First-stage transient suppressor on -48 V telecom supply, coordinated with upstream GDT and downstream TVS arrays. Use Value: Withstands repeated 10/1000 µs surges up to 6.2 A while maintaining <0.001 µA leakage - preserving system efficiency over 10+ year field life. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ40A | Same VRWM (40 V), but lower PPPM = 400 W only at 25 °C; derates to 220 W at 125 °C; Tj max = 150 °C. | Limited to industrial enclosures with active cooling; unsuitable for under-hood or furnace-mounted designs. | Select when cost sensitivity outweighs high-temperature requirement and thermal management is assured. |
| SMCJ40A | Higher PPPM = 1500 W, but larger DO-214AB package (7.11 mm × 6.22 mm × 2.34 mm); Rth(j-a) = 19 K/W on FR4. | Requires 3× PCB area; better for infrequent high-energy surges (e.g., lightning), not space-constrained thermal designs. | Choose when surge energy exceeds 400 W and board real estate allows larger footprint. |
Compared with SMAJ40A, PTVS40VS1UTR,115 delivers full 400 W power rating up to 185 °C junction temperature and fits in 1/10 the PCB area; versus SMCJ40A, it trades peak energy capacity for thermal density and mounting flexibility in compact, high-ambient environments.
Availability
PTVS40VS1UTR,115 is available at Aetrix Electronics and suitable for industrial power supply protection, automotive ECU designs, high-temperature motor drive boards, and outdoor telecom power interfaces requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for PTVS40VS1UTR,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 global semiconductor expert delivering high-performance, high-reliability components including logic, discrete, and analog devices, with manufacturing rooted in process technology leadership and automotive-grade quality systems.
The PTVSxS1UTR series belongs to Nexperia's high-temperature TVS portfolio, engineered specifically for transient suppression in environments where standard TVS diodes fail due to thermal instability - targeting under-hood automotive, industrial automation, and energy infrastructure applications.
FAQ
What is the maximum clamping voltage of PTVS40VS1UTR,115 under standard test conditions?
The clamping voltage VCL is 64.5 V at IPPM = 6.2 A using the 10/1000 µs current waveform per IEC 61643-321. This value is measured at Tj = 25 °C and represents the peak voltage imposed on the protected circuit during a defined surge event - critical for verifying margin against downstream IC absolute maximum ratings.
Can PTVS40VS1UTR,115 be used in bidirectional protection configurations?
No - PTVS40VS1UTR,115 is a unidirectional TVS diode with cathode (K) and anode (A) terminals. It conducts only during reverse-biased transients. For bidirectional protection, two devices must be connected in series opposition, or a dedicated bidirectional part like PTVS40VS1UTR,115's counterpart in the PTVS40VS1UTR-B series must be selected.
How does the 185 °C junction temperature rating impact PCB layout?
The 185 °C Tj rating requires thermal design that limits steady-state power dissipation and manages transient heating. Use ≥1 cm² copper pour on cathode pad (per Table 6), prefer ceramic substrates for Rth(j-sp) = 18 K/W, avoid thermal vias under the anode, and ensure reflow profile complies with Nexperia's CFP3 soldering guidelines (Fig. 6) to prevent delamination.
Is PTVS40VS1UTR,115 qualified for automotive applications per AEC-Q200?
No - the datasheet does not state AEC-Q200 qualification. While its 185 °C rating supports under-hood ambient temperatures, it lacks automotive-specific stress testing (e.g., temperature cycling, board flex, humidity bias). For automotive use, specify Nexperia's AEC-Q200-qualified equivalents such as PTVS40VS1UTR-Q or consult Nexperia's automotive product roadmap directly.
PTVS40VS1UTR,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):
- 40V
- Voltage - Breakdown (Min):
- 44.4V
- Voltage - Clamping (Max) @ Ipp:
- 64.5V
- Current - Peak Pulse (10/1000µs):
- 6.2A
- 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
PTVS40VS1UTR,115 FAQ
1.How can I place an order for PTVS40VS1UTR,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PTVS40VS1UTR,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 PTVS40VS1UTR,115 reliable?
The price and inventory of PTVS40VS1UTR,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PTVS40VS1UTR,115 is usually 5 days.
3.What payment methods are accepted for PTVS40VS1UTR,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PTVS40VS1UTR,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PTVS40VS1UTR,115?
PTVS40VS1UTR,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PTVS40VS1UTR,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 PTVS40VS1UTR,115?
For technical support, including PTVS40VS1UTR,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PTVS40VS1UTR,115 requirements.
6.How does Aetrix verify that PTVS40VS1UTR,115 is sourced from the original manufacturer or authorized distributors?
All PTVS40VS1UTR,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 PTVS40VS1UTR,115 meets industry standards.
7.What is the process for return or replacement of PTVS40VS1UTR,115?
All PTVS40VS1UTR,115 units undergo pre-shipment inspection (PSI). If there is an issue with PTVS40VS1UTR,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 PTVS40VS1UTR,115 part is unused and in its original packaging.
Return procedure for PTVS40VS1UTR,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PTVS40VS1UTR,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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D5V0L1B2WS-7
Diodes Incorporated
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