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Nexperia USA Inc. PTVS20VS1UTR,115
- Part No.:
- PTVS20VS1UTR,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- SOD-123W
- Datasheet:
-
PTVS20VS1UTR,115.pdf
- Description:
- TVS DIODE 20VWM 32.4VC SOD123W
- Quantity:
- Payment:
- Shipping:
Inventory:3,147
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Product details
Overview
PTVS20VS1UTR,115 from Nexperia is a unidirectional 400 W Transient Voltage Suppressor (TVS) in SOD123W (CFP3) package, designed for high-temperature transient overvoltage protection. It features VRWM = 20 V, VBR(min) = 22.2 V, VCL = 32.4 V at IPPM = 12.3 A (10/1000 μs), and operates up to Tj = 185 °C - enabling robust surge suppression in industrial power rails and automotive under-hood modules.
For engineers reviewing the PTVS20VS1UTR,115 datasheet, PTVS20VS1UTR,115 pinout, PTVS20VS1UTR,115 application, or PTVS20VS1UTR,115 equivalent, key selection criteria include clamping voltage at rated peak pulse current, thermal resistance to solder point (Rth(j-sp) = 18 K/W), junction temperature derating above 25 °C, and cathode-marked polarity alignment in PCB layout.
Technical Context
This unidirectional TVS diode uses an avalanche breakdown mechanism to clamp transients above its reverse standoff voltage (VRWM = 20 V). Its VBR range (22.2–24.5 V at IR = 1 mA) ensures precise triggering while maintaining low leakage (IRM ≤ 0.001 µA at VRWM).
Rated for 400 W peak pulse power per IEC 61643-321 (10/1000 µs waveform), it delivers IPPM = 12.3 A with VCL = 32.4 V - achieving a clamping ratio of 1.62× VRWM. Thermal design is enabled by Rth(j-sp) = 18 K/W to cathode solder point and Tj(max) = 185 °C rating.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 20 V - maximum continuous reverse operating voltage before clamping begins; defines safe DC bias margin. |
| VBR (min) | 22.2 V at IR = 1 mA - guaranteed minimum breakdown voltage; sets lower bound for transient response threshold. |
| VCL | 32.4 V at IPPM = 12.3 A (10/1000 µs) - clamped voltage seen by protected circuit during worst-case surge. |
| PPPM | 400 W - peak pulse power handling capability per IEC 61643-321; enables protection against high-energy transients. |
| Rth(j-sp) | 18 K/W - thermal resistance from junction to cathode solder point; critical for sustained surge duty cycle and board-level thermal management. |
| Tj(max) | 185 °C - maximum junction temperature rating; supports operation in under-hood, motor drive, and industrial control environments. |
| IRM | ≤ 0.001 µA at VRWM - ultra-low reverse leakage; minimizes standby power loss and avoids false triggering in high-impedance circuits. |
Pinout & Package
SOD123W (CFP3) plastic surface-mount package: 2.6 mm × 1.7 mm × 1.0 mm body height, flat lead profile, cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Connected to protected line (e.g., +VOUT); marking bar identifies this terminal; carries full surge current during clamping. |
| 2 (A) | Anode | Connected to ground or low-impedance return path; completes conduction path during transient events; must be routed with minimal inductance. |
Key Features
| Feature | Design Value |
|---|---|
| High-temperature operation | Tj up to 185 °C enables use in engine control units, motor drives, and industrial inverters without derating. |
| Low-profile SMD package | 1.0 mm max height (SOD123W) saves vertical space in compact power modules and automotive ECUs. |
| Precision clamping performance | VCL/VBR ratio ≤ 1.46 ensures tight voltage margin between trigger and clamp, protecting downstream ICs with narrow VDD tolerances. |
| ESD robustness | 30 kV contact discharge (IEC 61000-4-2) and >8 kV HBM rating provide system-level ESD immunity without additional front-end protection. |
| Stable leakage across temperature | IRM ≤ 0.001 µA maintained up to 150 °C ensures no increase in quiescent current in hot ambient conditions. |
Applications
| Industrial Power Supply Protection | Automotive Body Control Module (BCM) |
|---|---|
|
Use Scenario: Protecting 24 V DC input rails in programmable logic controllers (PLCs) against load dump and inductive switching surges. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VIN and GND, triggered within nanoseconds to clamp transients exceeding 20 V. Use Value: Limits voltage to ≤32.4 V during 12.3 A surges, preventing damage to buck converters and microcontrollers rated for 36 V absolute max. |
Use Scenario: Safeguarding LIN bus transceivers and window lift motor drivers in BCMs exposed to battery voltage spikes. IC Role / Device Role / Timing Role: Cathode-to-VBAT placement provides fast-response overvoltage clamping during alternator load dump events. Use Value: Withstands 185 °C junction temperature and maintains <1 µA leakage at 85 °C ambient, ensuring reliability in sealed enclosures. |
| Motor Drive Gate Driver Protection | High-Temperature Sensor Interface |
|
Use Scenario: Shielding isolated gate driver supplies in 3-phase inverters from cross-talk and Miller-induced transients. IC Role / Device Role / Timing Role: Placed across secondary-side 15–24 V bias rails to suppress ringing and overshoot during IGBT/MOSFET switching. Use Value: 400 W PPPM rating handles repetitive 10/1000 µs surges common in PWM-driven systems without thermal runaway. |
Use Scenario: Protecting analog front-ends of RTD or thermocouple interfaces in furnace controllers and oil & gas downhole tools. IC Role / Device Role / Timing Role: Low-leakage TVS on signal lines prevents offset drift and ADC saturation during ESD events at elevated temperatures. Use Value: Stable VBR and IRM up to 150 °C ensure consistent clamping behavior without calibration drift in harsh thermal environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ20A | Lower PPPM (400 W same), but VCL = 32.4 V at IPPM = 12.3 A; higher Rth(j-a) = 70 K/W vs. 18 K/W to solder point. | Less suitable for high-duty-cycle or thermally constrained layouts due to inferior thermal coupling to PCB. | Select only if legacy footprint compatibility with SMA package is required and thermal margin exceeds 25 K. |
| SMCJ20A | Same VRWM and VCL, but larger DO-214AB package (7.11 mm × 6.22 mm × 2.34 mm); PPPM = 1500 W, not directly comparable. | Over-specified power rating and excessive board area; unsuitable for space-constrained automotive or portable industrial designs. | Choose only when surge energy exceeds 400 W and mechanical mounting allows larger footprint. |
Compared with SMAJ20A and SMCJ20A, PTVS20VS1UTR,115 offers superior thermal performance (Rth(j-sp) = 18 K/W), ultra-low leakage (<0.001 µA), and minimal 1 mm profile - making it optimal for high-density, high-temperature, and thermally demanding applications where size and thermal coupling are critical.
Availability
PTVS20VS1UTR,115 is available at Aetrix Electronics and suitable for industrial power supply protection, automotive body control modules, and high-temperature sensor interfaces requiring stable component supply and long-term lifecycle support.
Supply support for PTVS20VS1UTR,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, reliable discrete, logic, and MOSFET solutions with focus on efficiency, miniaturization, and thermal resilience.
The PTVSxS1UTR series targets high-reliability transient suppression in thermally aggressive environments - specifically engineered for automotive under-hood, industrial automation, and power conversion systems demanding extended temperature operation.
FAQ
What is the maximum clamping voltage for PTVS20VS1UTR,115 under standard test conditions?
The clamping voltage VCL is 32.4 V measured at IPPM = 12.3 A using the 10/1000 µs current waveform per IEC 61643-321. This value is guaranteed across the full operating temperature range and represents the peak voltage imposed on the protected circuit during a worst-case surge event.
How does the thermal resistance specification impact PCB layout decisions?
Rth(j-sp) = 18 K/W (junction-to-solder-point) means effective heat transfer depends critically on cathode pad copper area and thickness. Layouts must use ≥1 cm² tin-plated copper on FR4 for cathode connection to achieve rated 400 W pulse handling; smaller pads cause premature thermal failure during repeated surges.
Is PTVS20VS1UTR,115 suitable for bidirectional transient protection?
No - it is strictly unidirectional. The device conducts only when cathode voltage exceeds anode by ≥VBR (22.2 V min). For AC or dual-polarity rail protection, a bidirectional variant (e.g., PTVS20VS1UTR's complementary series) or back-to-back configuration is required; using this part on AC lines risks permanent forward conduction and failure.
What marking code identifies PTVS20VS1UTR,115 on the device body?
The marking code is "CL", laser-etched on the top surface adjacent to the cathode bar. This matches Table 4 in the datasheet and distinguishes it from other variants (e.g., PTVS22VS1UTR = "CM"). The bar itself indicates Pin 1 (cathode), confirming orientation during automated placement.
PTVS20VS1UTR,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):
- 20V
- Voltage - Breakdown (Min):
- 22.2V
- Voltage - Clamping (Max) @ Ipp:
- 32.4V
- Current - Peak Pulse (10/1000µs):
- 12.3A
- 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
PTVS20VS1UTR,115 FAQ
1.How can I place an order for PTVS20VS1UTR,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PTVS20VS1UTR,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 PTVS20VS1UTR,115 reliable?
The price and inventory of PTVS20VS1UTR,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PTVS20VS1UTR,115 is usually 5 days.
3.What payment methods are accepted for PTVS20VS1UTR,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PTVS20VS1UTR,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PTVS20VS1UTR,115?
PTVS20VS1UTR,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PTVS20VS1UTR,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 PTVS20VS1UTR,115?
For technical support, including PTVS20VS1UTR,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PTVS20VS1UTR,115 requirements.
6.How does Aetrix verify that PTVS20VS1UTR,115 is sourced from the original manufacturer or authorized distributors?
All PTVS20VS1UTR,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 PTVS20VS1UTR,115 meets industry standards.
7.What is the process for return or replacement of PTVS20VS1UTR,115?
All PTVS20VS1UTR,115 units undergo pre-shipment inspection (PSI). If there is an issue with PTVS20VS1UTR,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 PTVS20VS1UTR,115 part is unused and in its original packaging.
Return procedure for PTVS20VS1UTR,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PTVS20VS1UTR,115 Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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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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Diodes Incorporated
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