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Nexperia USA Inc. PTVS26VS1UTR,115
- Part No.:
- PTVS26VS1UTR,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- SOD-123W
- Datasheet:
-
PTVS26VS1UTR,115.pdf
- Description:
- TVS DIODE 26VWM 42.1VC SOD123W
- Quantity:
- Payment:
- Shipping:
Inventory:2,634
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Product details
Overview
PTVS26VS1UTR 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 = 26 V, VBR(min) = 28.9 V at 1 mA, VCL = 42.1 V at IPPM = 9.5 A (10/1000 µs), and operates up to Tj = 185 °C - enabling robust clamping in industrial power supplies and motor drives.
For engineers reviewing the PTVS26VS1UTR datasheet, PTVS26VS1UTR pinout, PTVS26VS1UTR application, or PTVS26VS1UTR 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) standards.
Technical Context
This unidirectional TVS diode uses an avalanche breakdown mechanism to clamp transients above its reverse standoff voltage. Its low Rth(j-sp) = 18 K/W enables effective heat transfer from junction to solder point when mounted on standard FR4 PCBs with cathode pad enhancement.
Clamping performance is specified per IEC 61643-321 (10/1000 µs waveform), with PPPM = 400 W maintained up to Tj = 125 °C and derated to ~70 % at 185 °C. Reverse leakage remains ≤0.001 µA at VRWM = 26 V and Tj = 150 °C, ensuring minimal standby power loss.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 26 V - maximum continuous reverse operating voltage before significant leakage; sets minimum system rail voltage margin. |
| VBR (min) | 28.9 V at 1 mA - guaranteed avalanche initiation threshold; defines lower bound of clamping onset. |
| VCL | 42.1 V at IPPM = 9.5 A (10/1000 µs) - peak clamped voltage seen by downstream circuitry during surge. |
| PPPM | 400 W - peak pulse power handling capability under standardized 10/1000 µs waveform; determines surge energy absorption. |
| Tj max | 185 °C - maximum allowable junction temperature; supports operation in under-hood, motor control, and furnace environments. |
| Rth(j-sp) | 18 K/W - thermal resistance from junction to solder point; enables accurate thermal design using cathode pad copper area. |
| ESD Rating | ±30 kV contact discharge (IEC 61000-4-2); protects against human-body and system-level ESD events without external shielding. |
Pinout & Package
SOD123W (CFP3) plastic surface-mount package: 2.6 mm × 1.7 mm × 1.0 mm body height, flat lead profile optimized for automated placement and low-profile PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Marked side with bar; connects to protected line (e.g., +24 V rail); avalanche conduction occurs from cathode to anode during overvoltage. |
| 2 (A) | Anode | Unmarked terminal; typically tied to ground or low-impedance return path; completes clamping current loop during transient. |
Key Features
| Feature | Design Value |
|---|---|
| High-temperature operation | Junction rated to 185 °C - eliminates derating concerns in enclosed industrial enclosures or near power semiconductors. |
| Low-profile SMD package | 1.0 mm max height - enables use in space-constrained modules such as PLC I/O cards and servo drive control boards. |
| Precision clamping window | VBR min/max = 28.9 V / 31.9 V at 1 mA - tight 10.4 % spread ensures predictable turn-on across production lots. |
| Ultra-low leakage | IRM ≤ 0.001 µA at VRWM = 26 V and Tj = 150 °C - prevents measurable power drain in always-on battery-backed systems. |
| Robust ESD immunity | ±30 kV contact discharge rating - exceeds IEC 61000-4-2 Level 4, reducing need for secondary ESD protection layers. |
Applications
| Industrial Power Supply Protection | Motor Drive DC Bus Clamping |
|---|---|
Use Scenario: 24 V DC input stage of programmable logic controller (PLC) power module exposed to load dump and inductive kickback. IC Role / Device Role / Timing Role: Unidirectional TVS placed between +24 V rail and GND to clamp surges before they reach DC-DC converters and microcontrollers. Use Value: VCL = 42.1 V ensures protected ICs with 45 V absolute maximum rating remain within safe operating limits during 10/1000 µs transients. |
Use Scenario: DC link protection in 3-phase inverter for HVAC compressors, subject to regenerative braking spikes and switching noise. IC Role / Device Role / Timing Role: TVS mounted directly across DC+ and DC− bus terminals to suppress fast-rising common-mode transients from IGBT switching. Use Value: 400 W PPPM and 185 °C Tj rating allow sustained clamping during repeated 100 ms overvoltage events without thermal runaway. |
| Automated Test Equipment (ATE) Power Rails | High-Temperature Sensor Interface Protection |
Use Scenario: 28 V auxiliary supply in semiconductor ATE rack, where relay switching induces >100 V transients on inter-board cabling. IC Role / Device Role / Timing Role: TVS installed at backplane connector entry point to shunt surge energy before distribution to FPGA and ADC power domains. Use Value: Low Rth(j-sp) = 18 K/W enables reliable operation even with minimal copper pour, critical in densely routed ATE backplanes. |
Use Scenario: 26 V excitation supply for RTD sensors in oil & gas downhole tools operating at ambient 175 °C. IC Role / Device Role / Timing Role: TVS placed upstream of precision voltage reference and instrumentation amplifier to prevent latch-up from cable-coupled ESD. Use Value: IRM ≤ 0.001 µA at 150 °C ensures no measurable drift in reference voltage due to leakage-induced IR drop. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ26A | DO-214AC package; VRWM = 26 V; VCL = 42.1 V; PPPM = 400 W; Tj max = 150 °C | Larger footprint (4.5 mm × 2.7 mm) and 2.2 mm height; higher Rth(j-a) = 50 K/W in free air | Prefer PTVS26VS1UTR where board space or thermal constraints limit DO-214AC use; SMAJ26A suits legacy designs with existing footprints. |
| SMCJ26A | DO-214AB package; VRWM = 26 V; VCL = 42.1 V; PPPM = 1500 W; Tj max = 175 °C | Substantially larger (7.1 mm × 6.2 mm); 2.6 mm height; higher surge capacity but lower power density | Choose SMCJ26A only when >400 W single-pulse energy is required; PTVS26VS1UTR delivers identical clamping with 65 % smaller area and better high-temp stability. |
Compared with SMAJ26A and SMCJ26A, PTVS26VS1UTR provides identical 26 V standoff and 42.1 V clamping but achieves it in a 1 mm low-profile SOD123W package with superior 185 °C junction rating - making it optimal for thermally dense, space-limited industrial modules where long-term reliability at elevated ambient temperatures is mandatory.
Availability
PTVS26VS1UTR is available at Aetrix Electronics and suitable for industrial power supply protection, motor drive DC bus clamping, automated test equipment (ATE) power rails, and high-temperature sensor interface protection requiring stable component supply across extended product lifecycles.
Supply support for PTVS26VS1UTR 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 discrete and analog components, with leadership in logic, MOSFETs, bipolar transistors, and ESD/TVS protection devices.
The PTVSxS1UTR series was developed specifically for high-temperature industrial and automotive-adjacent applications demanding stable clamping performance beyond 150 °C - addressing thermal derating gaps in legacy TVS families.
FAQ
What is the maximum clamping voltage of PTVS26VS1UTR under IEC 61643-321 conditions?
The maximum clamping voltage (VCL) is 42.1 V at a peak pulse current (IPPM) of 9.5 A, measured using the standardized 10/1000 µs current waveform per IEC 61643-321. This value is guaranteed across the full operating temperature range and represents the highest voltage imposed on the protected circuit during a worst-case surge event.
Can PTVS26VS1UTR be used in bidirectional protection configurations?
No - PTVS26VS1UTR is a unidirectional TVS diode with cathode (K) and anode (A) terminals. It conducts only when the cathode is positive relative to the anode. For bidirectional protection, two devices must be connected in series opposing configuration, or a dedicated bidirectional part like PTVS26VS1UTR's counterpart PTVS26VS1UTR-BI must be selected.
How does thermal performance change when mounted on a 1 cm² cathode pad versus standard FR4 layout?
With a 1 cm² tin-plated copper pad under the cathode, Rth(j-sp) improves from 18 K/W to 130 K/W (junction-to-ambient), significantly increasing sustainable pulse repetition rate. This configuration allows ≥5× more frequent 400 W pulses before junction temperature exceeds 185 °C, compared to standard single-sided FR4 mounting.
Is PTVS26VS1UTR qualified for automotive applications per AEC-Q200?
No - the datasheet explicitly states this device is not automotive qualified. It lacks AEC-Q200 stress testing and qualification documentation. While its 185 °C junction rating exceeds typical under-hood requirements, it is intended for industrial, telecom, and high-temperature commercial use only; automotive designs require AEC-Q200-certified alternatives such as Nexperia's Automotive-grade PTVS26VS1UTR-A.
PTVS26VS1UTR,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):
- 26V
- Voltage - Breakdown (Min):
- 28.9V
- Voltage - Clamping (Max) @ Ipp:
- 42.1V
- Current - Peak Pulse (10/1000µs):
- 9.5A
- 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
PTVS26VS1UTR,115 FAQ
1.How can I place an order for PTVS26VS1UTR,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PTVS26VS1UTR,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 PTVS26VS1UTR,115 reliable?
The price and inventory of PTVS26VS1UTR,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PTVS26VS1UTR,115 is usually 5 days.
3.What payment methods are accepted for PTVS26VS1UTR,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PTVS26VS1UTR,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PTVS26VS1UTR,115?
PTVS26VS1UTR,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PTVS26VS1UTR,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 PTVS26VS1UTR,115?
For technical support, including PTVS26VS1UTR,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PTVS26VS1UTR,115 requirements.
6.How does Aetrix verify that PTVS26VS1UTR,115 is sourced from the original manufacturer or authorized distributors?
All PTVS26VS1UTR,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 PTVS26VS1UTR,115 meets industry standards.
7.What is the process for return or replacement of PTVS26VS1UTR,115?
All PTVS26VS1UTR,115 units undergo pre-shipment inspection (PSI). If there is an issue with PTVS26VS1UTR,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 PTVS26VS1UTR,115 part is unused and in its original packaging.
Return procedure for PTVS26VS1UTR,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PTVS26VS1UTR,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
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D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
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D5V0L1B2WS-7
Diodes Incorporated
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