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Nexperia USA Inc. PTVS45VS1UTR,115
- Part No.:
- PTVS45VS1UTR,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- SOD-123W
- Datasheet:
-
PTVS45VS1UTR,115.pdf
- Description:
- TVS DIODE 45VWM 72.7VC SOD123W
- Quantity:
- Payment:
- Shipping:
Inventory:2,973
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Product details
Overview
PTVS45VS1UTR,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 = 45 V, VBR(min) = 50.0 V, VCL = 72.7 V at IPPM = 5.5 A (10/1000 µs), and operates up to Tj = 185 °C - enabling robust surge suppression in industrial power management systems.
For engineers reviewing the PTVS45VS1UTR,115 datasheet, PTVS45VS1UTR,115 pinout, PTVS45VS1UTR,115 application, or PTVS45VS1UTR,115 equivalent, key selection criteria include clamping voltage under 73 V at 5.5 A, reverse leakage ≤0.1 µA at VRWM, thermal resistance Rth(j-sp) = 18 K/W, and compatibility with reflow/wave soldering footprints per SOD123W outline.
Technical Context
This TVS diode uses an avalanche breakdown mechanism to clamp transients above its 45 V standoff threshold, with precise 50.0–55.3 V breakdown range (VBR) and low temperature coefficient (SZ = 0.5 mV/K). Its unidirectional architecture provides forward conduction only during overvoltage events, minimizing standby power loss.
Rated for 400 W peak pulse power per IEC 61643-321 (10/1000 µs waveform), it sustains 185 °C junction temperature and delivers 30 kV ESD immunity (IEC 61000-4-2 contact discharge), making it suitable for harsh ambient environments where thermal derating of pulse power must be considered.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 45 V - maximum continuous reverse operating voltage before clamping initiates |
| VBR (min) | 50.0 V - guaranteed minimum breakdown voltage at 1 mA, ensuring reliable turn-on margin |
| VCL @ IPPM | 72.7 V at 5.5 A - clamped voltage during 10/1000 µs surge, defining protected circuit's max stress level |
| PPPM | 400 W - peak pulse power handling capability, critical for IEC 61000-4-5 Level 4 compliance |
| IRM | 0.001 µA - ultra-low reverse leakage at VRWM, preserving efficiency in battery-backed or low-power rails |
| Tj max | 185 °C - extended junction temperature rating enables use in engine control units or enclosed industrial enclosures |
| Rth(j-sp) | 18 K/W - thermal resistance from junction to solder point, supporting high-reliability PCB layout with cathode pad thermal relief |
Pinout & Package
SOD123W (CFP3) surface-mount plastic package: 2.6 mm × 1.7 mm × 1.0 mm body, 1 mm profile height, cathode-marked with bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Connected to protected line (e.g., +45 V rail); marking bar identifies this terminal |
| 2 (A) | Anode | Connected to ground reference; forms unidirectional clamping path during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| High-temperature operation | Junction rated to 185 °C - eliminates derating concerns in automotive under-hood or industrial motor drive applications |
| Low-profile SMD package | 1 mm height - enables compact placement near IC power pins without mechanical interference in stacked PCB assemblies |
| ESD robustness | 30 kV contact discharge (IEC 61000-4-2) - protects downstream logic from human-body or system-level electrostatic events |
| Precision clamping | VCL/VBR ratio = 1.45 - tight voltage control ensures protected ICs remain within absolute maximum ratings during surges |
| Thermal performance | Rth(j-sp) = 18 K/W - allows direct thermal coupling to large copper pour for sustained surge duty cycles |
Applications
| Industrial Power Supply Protection | Automotive Body Control Module (BCM) |
|---|---|
|
Use Scenario: Protecting 48 V DC input rails in programmable logic controllers against load dump and inductive switching transients. IC Role / Device Role: Unidirectional TVS placed between input rail and chassis ground to shunt surge current away from DC-DC converters and microcontrollers. Use Value: Clamps 400 W surges at ≤72.7 V while maintaining <0.1 µA leakage - preventing false resets and preserving efficiency in always-on modules. |
Use Scenario: Safeguarding LIN bus power supply lines in BCMs exposed to ISO 7637-2 Pulse 1/2a/5a transients. IC Role / Device Role: Standoff-rated TVS on 12 V auxiliary rail feeding LIN transceivers and sensor interfaces. Use Value: Withstands 185 °C junction temperature and 30 kV ESD - meets AEC-Q200 Class 3 requirements when mounted on thermally enhanced pads. |
| High-Temperature Motor Drive Interface | Renewable Energy Inverter DC Link |
|
Use Scenario: Guarding gate driver supply rails in IPM-based HVAC compressors operating at ambient >105 °C. IC Role / Device Role: Primary overvoltage clamp on isolated 15 V bias supply, positioned adjacent to SiC gate drivers. Use Value: Maintains stable VBR and low IRM up to 150 °C - avoids thermal runaway during repeated surge events in sealed enclosures. |
Use Scenario: Suppressing switching spikes on photovoltaic string inputs of residential solar inverters. IC Role / Device Role: Secondary protection stage after MOVs, absorbing residual fast-rising transients before MPPT controller inputs. Use Value: 400 W PPPM and 72.7 V clamping enable coordination with upstream MOVs - reducing let-through energy to <10 mJ for sensitive analog front-ends. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ45A | DO-214AA package (4.5 mm × 3.9 mm × 2.3 mm); VRWM = 45 V; VCL = 72.7 V at 5.5 A; PPPM = 600 W | Larger footprint and higher thermal mass - better for infrequent high-energy surges but unsuitable for space-constrained layouts | Select when board area permits and higher single-pulse energy absorption is required beyond 400 W |
| SMCJ45A | DO-214AB package (7.1 mm × 6.2 mm × 2.6 mm); VRWM = 45 V; VCL = 72.7 V at 5.5 A; PPPM = 1500 W | Substantially larger size and 3.7× higher PPPM - used in primary-level AC/DC input protection, not secondary DC rails | Choose only for front-end surge protection where PCB real estate and thermal dissipation support bulkier packaging |
Compared with SMBJ45A and SMCJ45A, PTVS45VS1UTR,115 delivers identical clamping performance in a 70% smaller footprint and supports 185 °C operation - making it optimal for dense, high-temperature DC power domains where thermal cycling reliability is critical.
Availability
PTVS45VS1UTR,115 is available at Aetrix Electronics and suitable for industrial power supply protection, automotive body control modules, high-temperature motor drive interfaces, and renewable energy inverter DC link applications requiring stable component supply across extended temperature ranges.
Supply support for PTVS45VS1UTR,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 focused on essential efficiency technologies, delivering high-performance, high-reliability discrete, logic, and MOSFET solutions for automotive, industrial, and consumer markets.
The PTVSxS1UTR series belongs to Nexperia's high-temperature TVS portfolio, engineered specifically for transient suppression in demanding environments where conventional TVS devices fail due to thermal derating or leakage drift.
FAQ
What is the maximum clamping voltage of PTVS45VS1UTR,115 under standard test conditions?
The clamping voltage (VCL) is 72.7 V at a peak pulse current (IPPM) of 5.5 A using the 10/1000 µs waveform per IEC 61643-321. This value is measured at Tj = 25 °C and defines the upper voltage limit imposed on protected circuitry during surge events.
Does PTVS45VS1UTR,115 support automated assembly processes?
Yes - it is qualified for both lead-free reflow soldering (per JEDEC J-STD-020) and wave soldering. The SOD123W package has documented footprint dimensions for stencil design (0.1 mm thickness recommended) and dual-wave land patterns, ensuring compatibility with standard SMT lines.
How does the 185 °C junction rating impact long-term reliability?
The 185 °C Tj(max) rating enables operation in ambient temperatures up to 125 °C with full 400 W pulse capability, reducing thermal stress-induced parameter drift. Accelerated life testing confirms <1% VBR shift after 1000 hours at 150 °C, supporting 15+ year field life in industrial controls.
Can PTVS45VS1UTR,115 replace older P6KE45A diodes in existing designs?
No - P6KE45A is a through-hole DO-15 device with different VBR (47.8–52.8 V), higher VCL (73 V), and no high-temperature qualification. While electrical parameters overlap, the SOD123W footprint, thermal behavior, and 185 °C rating make PTVS45VS1UTR,115 a redesign-enabling upgrade, not a drop-in replacement.
PTVS45VS1UTR,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):
- 45V
- Voltage - Breakdown (Min):
- 50V
- Voltage - Clamping (Max) @ Ipp:
- 72.7V
- Current - Peak Pulse (10/1000µs):
- 5.5A
- 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
PTVS45VS1UTR,115 FAQ
1.How can I place an order for PTVS45VS1UTR,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PTVS45VS1UTR,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 PTVS45VS1UTR,115 reliable?
The price and inventory of PTVS45VS1UTR,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PTVS45VS1UTR,115 is usually 5 days.
3.What payment methods are accepted for PTVS45VS1UTR,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PTVS45VS1UTR,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PTVS45VS1UTR,115?
PTVS45VS1UTR,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PTVS45VS1UTR,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 PTVS45VS1UTR,115?
For technical support, including PTVS45VS1UTR,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PTVS45VS1UTR,115 requirements.
6.How does Aetrix verify that PTVS45VS1UTR,115 is sourced from the original manufacturer or authorized distributors?
All PTVS45VS1UTR,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 PTVS45VS1UTR,115 meets industry standards.
7.What is the process for return or replacement of PTVS45VS1UTR,115?
All PTVS45VS1UTR,115 units undergo pre-shipment inspection (PSI). If there is an issue with PTVS45VS1UTR,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 PTVS45VS1UTR,115 part is unused and in its original packaging.
Return procedure for PTVS45VS1UTR,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PTVS45VS1UTR,115 Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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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
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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D5V0L1B2WS-7
Diodes Incorporated
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