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Nexperia USA Inc. PTVS45VS1UR,115
- Part No.:
- PTVS45VS1UR,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- SOD-123W
- Datasheet:
-
PTVS45VS1UR,115.pdf
- Description:
- TVS DIODE 45VWM 72.7VC SOD123W
- Quantity:
- Payment:
- Shipping:
Inventory:23,280
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Product details
Overview
PTVS45VS1UR,115 from Nexperia is a unidirectional 400 W Transient Voltage Suppressor (TVS) in SOD123W (CFP3) package, designed for clamping transient overvoltages on DC power rails. It features 45 V reverse standoff voltage (VRWM), 55.3 V maximum clamping voltage (VCL) at 72.7 A peak pulse current (IPPM), and 0.001 µA reverse leakage at VRWM - enabling robust protection in space-constrained industrial and embedded power supply circuits.
For engineers reviewing the PTVS45VS1UR,115 datasheet, PTVS45VS1UR,115 pinout, PTVS45VS1UR,115 application, or PTVS45VS1UR,115 equivalent, key selection criteria include clamping performance under IEC 61643-321 10/1000 µs waveform, thermal resistance to solder point (18 K/W), AEC-Q101 qualification status, and compatibility with standard SOD123W reflow footprints.
Technical Context
This unidirectional TVS diode operates as a voltage-clamping device in parallel with protected circuitry, conducting only when transient voltage exceeds its breakdown threshold (VBR = 50.0–55.3 V). Its junction-to-solder-point thermal resistance of 18 K/W supports reliable power dissipation during 400 W peak pulses without board-level heatsinking.
The device adheres strictly to IEC 61643-321 (10/1000 µs waveform) for peak pulse power rating and meets MIL-STD-883 HBM ESD rating >4 kV and IEC 61000-4-2 contact discharge up to 30 kV - confirming suitability for harsh electromagnetic environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 45 V - maximum continuous reverse operating voltage before clamping begins |
| VBR (min/typ/max) | 50.0 / 52.65 / 55.3 V - breakdown voltage range at 1 mA test current; defines turn-on threshold consistency |
| VCL @ IPPM | 55.3 V - clamped voltage at 72.7 A peak pulse current; determines maximum stress on downstream ICs |
| PPPM | 400 W - rated peak pulse power per IEC 61643-321 (10/1000 µs); defines transient energy handling capability |
| IRM | 0.001 µA - reverse leakage at VRWM; ensures minimal quiescent power loss in always-on protection |
| Rth(j-sp) | 18 K/W - thermal resistance from junction to cathode solder point; enables direct PCB copper pour thermal coupling |
| ESD Rating | 30 kV (IEC 61000-4-2 contact discharge); protects against human-handling transients during assembly and field service |
Pinout & Package
PTVS45VS1UR,115 uses the SOD123W (CFP3) surface-mount plastic package: 2.6 mm × 1.7 mm × 1.0 mm body, flat lead profile, cathode-marked with a bar. Mounting requires standard reflow footprint per Nexperia doc sod123w_fr (recommended stencil thickness 0.1 mm).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to protected line (e.g., +12 V rail); marking bar identifies this terminal; carries full IPPM during clamping |
| 2 | Anode (A) | Connected to ground reference; forms low-impedance path to GND during overvoltage events; must be routed with minimal inductance |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power | Handles high-energy transients (e.g., ISO 7637-2 Pulse 1/2a/5a) without degradation in compact SOD123W footprint |
| 1 mm package height | Enables use in ultra-thin applications such as automotive body control modules and portable industrial sensors |
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias, and HTRB - confirmed in revision v.4 (2025) |
| Low IRM (0.001 µA) | Minimizes standby current draw in battery-backed systems and avoids false triggering in high-impedance sensing nodes |
| SOD123W footprint compatibility | Direct drop-in replacement for legacy SOD-123 devices; supports automated placement and standard reflow profiles (J-STD-020) |
Applications
| Industrial Power Supply Protection | Automotive Body Control Module (BCM) |
|---|---|
|
Use Scenario: Protecting 48 V auxiliary power rails in programmable logic controllers (PLCs) against load dump and inductive switching spikes. IC Role / Device Role / Timing Role: Unidirectional shunt clamp placed across input capacitor; responds within <1 ns to limit voltage excursion to ≤55.3 V. Use Value: Prevents damage to upstream DC-DC controllers and downstream microcontrollers during 400 W surge events without requiring series impedance. |
Use Scenario: Safeguarding LIN bus interface ICs and window lift motor drivers in door modules exposed to battery reverse polarity and jump-start surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp on VBAT-supplied sub-circuits; activated only during transients >45 V, remaining invisible during normal 9–16 V operation. Use Value: Eliminates need for discrete Zener + series resistor networks while maintaining AEC-Q101 compliance and 30 kV ESD immunity. |
| Medical Equipment DC Input Stage | Smart Building Sensor Node Power Rail |
|
Use Scenario: Securing 24 V DC input to patient monitor mainboard against EFT bursts and capacitive discharge from nearby equipment. IC Role / Device Role / Timing Role: Fast-response parallel protector on bulk input filter; clamps to 55.3 V within nanoseconds to preserve downstream LDO regulation. Use Value: Ensures uninterrupted operation during IEC 61000-4-4 Level 4 (4 kV) bursts without latch-up or parametric shift in protected ICs. |
Use Scenario: Shielding battery-charged IoT sensor nodes (e.g., CO₂, occupancy) from electrostatic discharge during field installation and maintenance. IC Role / Device Role / Timing Role: ESD front-end guard on 3.3–5 V regulated rail; absorbs 30 kV contact discharge without forward conduction or system reset. Use Value: Replaces multi-component TVS arrays with single-device solution, reducing BOM count and PCB area by >60%. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ45A | Same VRWM (45 V), but lower PPPM (400 W vs. SMAJ45A's 400 W), higher VCL (64.8 V), larger SMA package (4.5 × 2.7 mm) | Requires larger PCB area; less suitable for ultra-thin designs; identical clamping energy but slower thermal response due to higher Rth(j-a) | Select when existing SMA footprint is fixed and thermal derating margin is sufficient |
| SMCJ45A | Higher PPPM (1500 W), same VRWM, higher VCL (72.7 V), much larger SMC package (7.1 × 6.2 mm) | Over-specified for 400 W needs; introduces unnecessary size/cost; better for load-dump-only scenarios | Choose only if future design scaling to 1.5 kW transients is planned and board space permits |
Compared with SMAJ45A and SMCJ45A, PTVS45VS1UR,115 delivers identical 45 V standoff and 400 W pulse rating in a 60% smaller footprint than SMA and 85% smaller than SMC, with superior thermal coupling (18 K/W to solder point) - making it optimal for space- and thermally constrained industrial and automotive modules.
Availability
PTVS45VS1UR,115 is available at Aetrix Electronics and suitable for industrial power supply protection, automotive body control modules, and medical equipment DC input stages requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant surge resilience.
Supply support for PTVS45VS1UR,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 high-volume, high-reliability essential semiconductors - delivering discrete, logic, and MOSFET solutions optimized for efficiency, miniaturization, and robustness.
PTVS45VS1UR,115 belongs to the PTVSxS1UR series, engineered specifically for compact, high-power transient suppression in automotive and industrial power rails where low-profile packaging and AEC-Q101 validation are mandatory.
FAQ
Is PTVS45VS1UR,115 qualified for automotive applications?
Yes - PTVS45VS1UR,115 is explicitly qualified to AEC-Q101 (per revision v.4, December 2025) and listed among the 33 types granted standard automotive qualification in the latest revision history. It is validated for temperature cycling, HTRB, and mechanical shock per AEC requirements.
What is the maximum clamping voltage under full-rated surge current?
At its rated peak pulse current of 72.7 A (IPPM), PTVS45VS1UR,115 clamps to a maximum of 55.3 V (VCL), measured per IEC 61643-321 10/1000 µs waveform. This value is guaranteed across temperature and process variation, ensuring downstream ICs see no more than 55.3 V during worst-case transients.
Can PTVS45VS1UR,115 replace older PTVS45VS1U parts?
Yes - PTVS45VS1UR,115 is the updated ordering code for the same device previously marked PTVS45VS1U. The "R" suffix denotes tape-and-reel packaging (10,000 pcs/reel), and the "115" indicates Nexperia's internal packaging variant; electrical and thermal specs are identical to legacy versions.
Does the SOD123W package support automated optical inspection (AOI)?
Yes - the SOD123W package features a flat, coplanar lead structure and consistent cathode marking bar, enabling reliable detection by standard AOI systems. Nexperia provides detailed solder paste stencil recommendations (0.1 mm thickness) and reflow profiles aligned with IPC-A-610 Class 2/3 requirements.
PTVS45VS1UR,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 ~ 150°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123W
PTVS45VS1UR,115 FAQ
1.How can I place an order for PTVS45VS1UR,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PTVS45VS1UR,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 PTVS45VS1UR,115 reliable?
The price and inventory of PTVS45VS1UR,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PTVS45VS1UR,115 is usually 5 days.
3.What payment methods are accepted for PTVS45VS1UR,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PTVS45VS1UR,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PTVS45VS1UR,115?
PTVS45VS1UR,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PTVS45VS1UR,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 PTVS45VS1UR,115?
For technical support, including PTVS45VS1UR,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PTVS45VS1UR,115 requirements.
6.How does Aetrix verify that PTVS45VS1UR,115 is sourced from the original manufacturer or authorized distributors?
All PTVS45VS1UR,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 PTVS45VS1UR,115 meets industry standards.
7.What is the process for return or replacement of PTVS45VS1UR,115?
All PTVS45VS1UR,115 units undergo pre-shipment inspection (PSI). If there is an issue with PTVS45VS1UR,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 PTVS45VS1UR,115 part is unused and in its original packaging.
Return procedure for PTVS45VS1UR,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PTVS45VS1UR,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
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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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