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Nexperia USA Inc. PTVS20VU1UPAZ
- Part No.:
- PTVS20VU1UPAZ
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- 3-PowerUDFN
- Datasheet:
-
PTVS20VU1UPAZ.pdf
- Description:
- TVS DIODE 20VWM 32.5VC 3HUSON
- Quantity:
- Payment:
- Shipping:
Inventory:9,055
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Product details
Overview
PTVS20VU1UPAZ from Nexperia is a unidirectional 300 W transient voltage suppressor (TVS) diode in DFN2020-3 (SOT1061) package, designed for robust overvoltage protection of single-line DC power or signal paths. It delivers VRWM = 20 V, VBR = 22.2–24.5 V (at 1 mA), clamping voltage VCL ≤ 38.7 V (8/20 µs, 98.5 A), and ultra-low leakage IRM ≤ 1 nA at 20 V - enabling reliable protection in automotive power supply rails and industrial I/O interfaces.
For engineers reviewing the PTVS20VU1UPAZ datasheet, PTVS20VU1UPAZ pinout, PTVS20VU1UPAZ application, or PTVS20VU1UPAZ equivalent, key selection criteria include its AEC-Q101 qualification, 30 kV ESD immunity (IEC 61000-4-2), 0.65 mm profile for space-constrained PCBs, and verified clamping performance under both 8/20 µs surge and 10/1000 µs long-duration transients.
Technical Context
This unidirectional TVS operates as a clamping device across a single line and ground, triggering conduction only when reverse voltage exceeds its breakdown threshold (VBR ≥ 22.2 V). Its low dynamic resistance (Rdyn ≈ 0.04 Ω, TLP measured) ensures rapid voltage suppression during fast transients like ESD and EFT.
The device uses a planar silicon junction structure optimized for high surge robustness in compact leadless packaging. Thermal enhancement in the DFN2020-3 footprint supports sustained 300 W peak pulse power (10/1000 µs) and 3800 W short-duration capability (8/20 µs), with junction temperature rated to 150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 20 V - Maximum continuous reverse operating voltage before leakage rises significantly; defines safe DC working range. |
| VBR (1 mA) | 22.2–24.5 V - Breakdown onset voltage; determines earliest clamping activation point for overvoltage events. |
| VCL (8/20 µs) | ≤ 38.7 V at 98.5 A - Clamped voltage during IEC 61000-4-5 surge; critical for ensuring downstream ICs remain below absolute max ratings. |
| IPP (10/1000 µs) | 9.2 A - Sustained current handling per IEC 61643-321; reflects endurance against longer energy pulses like lightning-induced surges. |
| IRM | ≤ 1 nA at 20 V - Reverse leakage current; enables minimal standby power loss and signal integrity in high-impedance circuits. |
| Cd (0 V) | 800 pF - Junction capacitance at zero bias; impacts high-frequency signal integrity on protected lines (e.g., CAN, RS-485). |
| ESD Rating | ±30 kV (IEC 61000-4-2, contact/air) - Confirmed immunity level for direct human-body model discharge events. |
Pinout & Package
DFN2020-3 (SOT1061) is a 2.0 mm × 2.0 mm × 0.65 mm thermally enhanced, leadless surface-mount package with three terminals and no exposed pad. Its ultra-thin profile supports high-density PCB layouts and automated reflow assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Anode | Connected to protected line (positive polarity); forms cathode-to-ground conduction path during overvoltage. |
| 2 | Anode | Electrically tied to Pin 1 internally; provides redundant anode connection for lower bond wire inductance and improved surge current sharing. |
| 3 | Cathode | Connected to system ground; serves as reference node for clamping action and transient return path. |
Key Features
| Feature | Design Value |
|---|---|
| Unidirectional clamping | Protects positive-polarity lines only (e.g., +12 V rail), avoiding false triggering on negative excursions or AC signals. |
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD stress - suitable for under-hood ECUs and body control modules. |
| Low-profile DFN package | 0.65 mm height enables placement beneath connectors or near board edges without mechanical interference or airflow obstruction. |
| High ESD immunity | ±30 kV contact/air discharge rating ensures survival of repeated human-handling events without parameter shift or failure. |
| Thermal-enhanced construction | Optimized copper slug and die attach reduce thermal resistance, maintaining clamping stability during repetitive surge events. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: 12 V battery-supplied microcontroller power input in engine control unit subject to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between VCC and GND to limit transient voltage spikes to <39 V during 8/20 µs surges. Use Value: Prevents MCU brown-out or latch-up by holding rail voltage within 3.3 V or 5 V regulator input tolerance during 98.5 A surge events. |
Use Scenario: 4–20 mA current loop transmitter output connected to PLC analog input in factory automation. IC Role / Device Role / Timing Role: Line protection element shunting induced surges from nearby motor switching or lightning coupling onto the loop. Use Value: Maintains loop accuracy by limiting voltage excursion to ≤32.5 V (10/1000 µs) while adding only 800 pF capacitance to preserve bandwidth. |
| USB Port ESD Protection | DC Motor Driver Gate Protection |
|
Use Scenario: VBUS line of USB 2.0 port on automotive infotainment head unit exposed to hot-plug and user ESD. IC Role / Device Role / Timing Role: Primary ESD clamp on +5 V supply rail, triggered within nanoseconds of ±8 kV contact discharge. Use Value: Clamps ESD pulse to ≤23 V (positive) and ≤−1.9 V (negative) at 30 ns, protecting USB PHY and power management ICs. |
Use Scenario: High-side gate drive supply (VGS) of N-channel MOSFET in 24 V industrial motor controller. IC Role / Device Role / Timing Role: Overvoltage clamp preventing gate oxide rupture during inductive kickback from motor coil flyback. Use Value: Limits VGS to ≤38.7 V during 98.5 A surge, preserving MOSFET gate integrity without affecting PWM switching speed. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ20A | DO-214AC package (larger, 2.4 mm height), higher VBR (22.2–24.5 V same), identical VRWM (20 V), but lower IPP (9.2 A vs. 98.5 A for 8/20 µs). | Not AEC-Q101 qualified; lacks automotive validation and 30 kV ESD rating. | Preferred where board space allows larger package and automotive qualification is not required. |
| Vishay SMF20A | SOD-123FL package (1.7 mm × 1.3 mm × 1.0 mm), same VRWM/VBR, but lower PPPM (200 W vs. 300 W @ 10/1000 µs) and higher Cd (1000 pF). | Higher capacitance limits use in >1 MHz signal lines; lower surge rating reduces margin for repetitive surges. | Acceptable for cost-sensitive consumer applications with moderate surge exposure and relaxed layout constraints. |
Compared with SMAJ20A and SMF20A, PTVS20VU1UPAZ offers superior surge robustness (300 W vs. ≤200 W), AEC-Q101 compliance, and ultra-low profile - making it optimal for automotive and space-constrained industrial designs requiring validated reliability.
Availability
PTVS20VU1UPAZ is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface protection, USB port ESD protection, and DC motor driver gate protection requiring stable component supply and full traceability.
Supply support for PTVS20VU1UPAZ 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 logic devices, with leadership in automotive-qualified components and advanced packaging technologies.
PTVS20VU1UPAZ belongs to Nexperia's Automotive TVS Diode family, engineered specifically for robust transient suppression in harsh environments - targeting ISO 7637-2, IEC 61000-4-5, and IEC 61000-4-2 compliance in vehicle electronics and industrial controls.
FAQ
What is the maximum clamping voltage under a 98.5 A, 8/20 µs surge?
The maximum clamping voltage (VCL) is 38.7 V at 98.5 A, 8/20 µs, measured from pins 1/2 to pin 3 per IEC 61000-4-5. This value is guaranteed across temperature and represents the peak voltage seen by downstream circuitry during worst-case surge conditions.
Is PTVS20VU1UPAZ bidirectional or unidirectional?
PTVS20VU1UPAZ is strictly unidirectional: it conducts only when the anode (pins 1 and 2) is driven positive relative to the cathode (pin 3). It does not protect against negative transients on the protected line - a separate device or bidirectional variant would be needed for AC or dual-polarity signals.
How does the DFN2020-3 package affect thermal performance?
The DFN2020-3 (SOT1061) package features internal thermal enhancement via direct die-to-pad construction and optimized copper routing, achieving lower junction-to-board thermal resistance than standard SOD-123 or SMA packages - enabling sustained 300 W pulse power dissipation without derating at typical PCB copper areas.
Can PTVS20VU1UPAZ replace PTVS20VU1UPA?
Yes - PTVS20VU1UPAZ is the Z-marked tape-and-reel variant of PTVS20VU1UPA, sharing identical electrical characteristics, package, pinout, and qualification. The 'Z' suffix denotes packaging format only (7-inch reel, 3000 pcs/reel), not functional or parametric differences.
PTVS20VU1UPAZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Package/Case:
- 3-PowerUDFN
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 20V (Max)
- Voltage - Breakdown (Min):
- 22.2V
- Voltage - Clamping (Max) @ Ipp:
- 32.5V
- Current - Peak Pulse (10/1000µs):
- 9.2A
- Power - Peak Pulse:
- 300W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- 800pF @ 1MHz
- Operating Temperature:
- -55°C ~ 150°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 3-HUSON (2x2)
PTVS20VU1UPAZ FAQ
1.How can I place an order for PTVS20VU1UPAZ through Aetrix?
Please submit a Request for Quotation (RFQ) for PTVS20VU1UPAZ 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 PTVS20VU1UPAZ reliable?
The price and inventory of PTVS20VU1UPAZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PTVS20VU1UPAZ is usually 5 days.
3.What payment methods are accepted for PTVS20VU1UPAZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PTVS20VU1UPAZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PTVS20VU1UPAZ?
PTVS20VU1UPAZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PTVS20VU1UPAZ 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 PTVS20VU1UPAZ?
For technical support, including PTVS20VU1UPAZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PTVS20VU1UPAZ requirements.
6.How does Aetrix verify that PTVS20VU1UPAZ is sourced from the original manufacturer or authorized distributors?
All PTVS20VU1UPAZ 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 PTVS20VU1UPAZ meets industry standards.
7.What is the process for return or replacement of PTVS20VU1UPAZ?
All PTVS20VU1UPAZ units undergo pre-shipment inspection (PSI). If there is an issue with PTVS20VU1UPAZ, 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 PTVS20VU1UPAZ part is unused and in its original packaging.
Return procedure for PTVS20VU1UPAZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PTVS20VU1UPAZ Tags
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Nexperia USA Inc.
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