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Nexperia USA Inc. PTVS43VS1UR,115
- Part No.:
- PTVS43VS1UR,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- SOD-123W
- Datasheet:
-
PTVS43VS1UR,115.pdf
- Description:
- TVS DIODE 43VWM 69.4VC SOD123W
- Quantity:
- Payment:
- Shipping:
Inventory:5,338
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Product details
Overview
PTVS43VS1UR,115 from Nexperia is a unidirectional 400 W Transient Voltage Suppressor (TVS) in SOD123W (CFP3) package, designed for high-energy surge protection on DC power rails. It features a 43 V reverse standoff voltage (VRWM), 52.8 V maximum clamping voltage (VCL) at 69.4 A peak pulse current (IPPM), and 0.001 µA reverse leakage at VRWM - optimized for industrial power supply and I/O line protection.
For engineers reviewing the PTVS43VS1UR,115 datasheet, PTVS43VS1UR,115 pinout, PTVS43VS1UR,115 application, or PTVS43VS1UR,115 equivalent, this device delivers verified 400 W peak pulse power per IEC 61643-321 (10/1000 µs), low-profile 1 mm height, and AEC-Q101 qualification for robustness in demanding environments.
Technical Context
This unidirectional TVS operates as a clamping device: under normal bias it presents high impedance (>1 GΩ at VRWM), but triggers into low-impedance conduction when transient voltage exceeds its breakdown threshold (VBR = 47.8–52.8 V). Its junction-to-solder-point thermal resistance is 18 K/W, enabling effective heat dissipation during repetitive surges.
The device uses a planar silicon junction structure with cathode-anode polarity defined by a marking bar on the SOD123W body. It complies with IEC 61000-4-2 ESD rating (30 kV contact discharge) and supports non-repetitive peak forward current up to 50 A (8.3 ms half-sine).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (PPPM) | 400 W per IEC 61643-321 (10/1000 µs); sustains high-energy transients without failure |
| Reverse Standoff Voltage (VRWM) | 43 V; maximum continuous DC voltage before significant leakage begins |
| Clamping Voltage (VCL) | 52.8 V at IPPM = 69.4 A; limits downstream circuit voltage during surge |
| Breakdown Voltage (VBR) | 47.8–52.8 V at IR = 1 mA; precise triggering threshold for overvoltage events |
| Reverse Leakage (IRM) | 0.001 µA at VRWM; negligible standby power loss and minimal signal loading |
| Package | SOD123W (CFP3): 2.6 × 1.7 × 1.0 mm; ultra-low profile for space-constrained PCB layouts |
| ESD Rating | 30 kV contact discharge (IEC 61000-4-2); protects against human-body and system-level ESD |
Pinout & Package
SOD123W (CFP3) surface-mount plastic package with 2 terminals, 1 mm height, and cathode-marking bar. Optimized for automated placement and reflow soldering per JEDEC MS-012AC.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Connected to protected line (e.g., +VDC rail); marking bar identifies this terminal |
| 2 (A) | Anode | Connected to ground reference; defines unidirectional conduction path from rail to GND |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power rating | Enables protection against severe lightning-induced surges (IEC 61000-4-5 Level 4) on 24–48 V systems |
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD stress |
| 1 mm package height | Reduces board clearance issues in stacked or shielded assemblies; compatible with low-profile enclosures |
| 0.001 µA reverse leakage | Minimizes quiescent current draw in battery-backed or energy-harvesting systems |
| 18 K/W junction-to-solder-point Rth(j-sp) | Supports localized thermal management via cathode pad copper pour, improving surge endurance |
Applications
| Industrial Power Supply Protection | Programmable Logic Controller (PLC) I/O Protection |
|---|---|
|
Use Scenario: 48 V DC input stage of DIN-rail mounted power supplies exposed to load dump and inductive switching transients. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between +48 V rail and chassis ground to limit surge voltage to <53 V. Use Value: Prevents damage to upstream DC-DC controllers and downstream 24 V logic by clamping 400 W transients within safe voltage margin. |
Use Scenario: Digital input module in PLC backplane where field wiring introduces fast-rising EFT bursts (IEC 61000-4-4). IC Role / Device Role / Timing Role: Rail-to-ground TVS on each 24 V digital input channel, triggered within nanoseconds of overvoltage onset. Use Value: Maintains signal integrity and prevents false triggering of optocouplers or microcontrollers during 5 kHz burst noise events. |
| Factory Automation Sensor Interface | Telecom Remote Power Feeding |
|
Use Scenario: 24 V analog sensor loop (4–20 mA) connected to industrial Ethernet gateway, subject to cable-coupled surges. IC Role / Device Role / Timing Role: Bidirectional protection not required; unidirectional PTVS43VS1UR clamps positive transients only on supply line. Use Value: Preserves sensor accuracy by limiting voltage excursion to ≤52.8 V while adding <0.001 µA leakage error. |
Use Scenario: -48 V DC power feeding over twisted-pair in remote radio head (RRH) installations, vulnerable to induced lightning surges. IC Role / Device Role / Timing Role: Cathode tied to -48 V rail, anode to ground - clamps negative-going transients relative to system ground. Use Value: Enables compliance with ITU-T K.20/21 surge immunity requirements without derating due to low VCL and high IPPM. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ43A | DO-214AC package (4.5 mm height), 400 W PPPM, VRWM = 43 V, VCL = 69.4 V at 5.8 A | Higher clamping voltage (69.4 V vs. 52.8 V) reduces system margin; larger footprint occupies 3× PCB area | Select SMAJ43A only if legacy DO-214AC layout exists and clamping margin permits higher VCL |
| SMCJ43A | DO-214AB package (2.6 mm height), 1500 W PPPM, VRWM = 43 V, VCL = 69.4 V at 17.1 A | Triple power rating but same VCL - overkill for 400 W needs; no benefit in clamping performance or leakage | Choose SMCJ43A only when system-level surge testing requires >1000 W capability; otherwise wastes cost and space |
Compared with SMAJ43A and SMCJ43A, PTVS43VS1UR,115 delivers identical VRWM with 16.6 V lower clamping voltage and 60% smaller PCB footprint - directly improving surge margin and enabling miniaturized industrial designs.
Availability
PTVS43VS1UR,115 is available at Aetrix Electronics and suitable for industrial power supply protection, PLC I/O modules, factory automation sensor interfaces, and telecom remote power feeding requiring stable component supply and long-term lifecycle assurance.
Supply support for PTVS43VS1UR,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 for automotive, industrial, and consumer markets.
The PTVSxS1UR series targets compact, high-power transient suppression in space- and thermal-constrained applications, emphasizing AEC-Q101 qualification, low-profile packaging, and IEC-compliant surge handling for industrial and infrastructure systems.
FAQ
What is the maximum clamping voltage of PTVS43VS1UR,115 at rated peak pulse current?
The maximum clamping voltage (VCL) is 52.8 V at 69.4 A peak pulse current (IPPM), measured per IEC 61643-321 10/1000 µs waveform. This value ensures downstream components see voltage limited below 53 V during worst-case surge events, preserving functional safety margins in 48 V systems.
Is PTVS43VS1UR,115 suitable for automotive applications?
Yes - PTVS43VS1UR,115 is AEC-Q101 qualified per the revision history (v.4, December 2025), confirming stress-test validation for discrete semiconductors in automotive environments. However, it is not intended for safety-critical systems such as airbag or braking control without additional system-level validation.
How does the SOD123W package affect thermal performance?
The SOD123W package achieves 18 K/W junction-to-solder-point thermal resistance (Rth(j-sp)) when the cathode pad is connected to ≥1 cm² copper area. This enables efficient heat transfer during repetitive surges, supporting sustained operation where ambient temperatures reach 125 °C and junction temperature stays ≤150 °C.
Can PTVS43VS1UR,115 replace bidirectional TVS diodes in AC-coupled circuits?
No - PTVS43VS1UR,115 is unidirectional and conducts only for positive transients on the cathode relative to anode. In AC or bipolar signal paths, it provides no protection against negative excursions. For such applications, a bidirectional variant like PTVS43VS1UR,115's counterpart with symmetrical clamping is required.
PTVS43VS1UR,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):
- 43V
- Voltage - Breakdown (Min):
- 47.8V
- Voltage - Clamping (Max) @ Ipp:
- 69.4V
- Current - Peak Pulse (10/1000µs):
- 5.8A
- 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
PTVS43VS1UR,115 FAQ
1.How can I place an order for PTVS43VS1UR,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PTVS43VS1UR,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 PTVS43VS1UR,115 reliable?
The price and inventory of PTVS43VS1UR,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PTVS43VS1UR,115 is usually 5 days.
3.What payment methods are accepted for PTVS43VS1UR,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PTVS43VS1UR,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PTVS43VS1UR,115?
PTVS43VS1UR,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PTVS43VS1UR,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 PTVS43VS1UR,115?
For technical support, including PTVS43VS1UR,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PTVS43VS1UR,115 requirements.
6.How does Aetrix verify that PTVS43VS1UR,115 is sourced from the original manufacturer or authorized distributors?
All PTVS43VS1UR,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 PTVS43VS1UR,115 meets industry standards.
7.What is the process for return or replacement of PTVS43VS1UR,115?
All PTVS43VS1UR,115 units undergo pre-shipment inspection (PSI). If there is an issue with PTVS43VS1UR,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 PTVS43VS1UR,115 part is unused and in its original packaging.
Return procedure for PTVS43VS1UR,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PTVS43VS1UR,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
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
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Diodes Incorporated
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