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Nexperia USA Inc. PTVS20VZ1USKYL
- Part No.:
- PTVS20VZ1USKYL
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- 0603 (1608 Metric)
- Datasheet:
-
PTVS20VZ1USKYL.pdf
- Description:
- TVS DIODE 20VWM 36.9VC DSN1608-2
- Quantity:
- Payment:
- Shipping:
Inventory:27,533
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Product details
Overview
PTVS20VZ1USK from Nexperia is a unidirectional transient voltage suppressor (TVS) diode in a leadless DSN1608-2 (SOD964) package, designed for ESD and surge protection of low-voltage DC power rails and signal lines in space-constrained mobile electronics. It delivers 20 V reverse standoff voltage, 41 A peak pulse current (8/20 µs), 2000 W peak pulse power, 0.2 Ω dynamic resistance, and 1 nA reverse leakage at 20 V.
For engineers reviewing the PTVS20VZ1USK datasheet, PTVS20VZ1USK pinout, PTVS20VZ1USK application, or PTVS20VZ1USK equivalent, this device is selected for ultra-thin portable power rail clamping where sub-0.3 mm height, low capacitance (260 pF), and fast response to IEC 61000-4-2 ±30 kV ESD events are critical design requirements.
Technical Context
This TVS operates as a unidirectional clamping diode-forward-biased during negative transients and reverse-breakdown clamped during positive overvoltage events. Its 22.2–25.4 V breakdown voltage (at 10 mA) ensures reliable triggering above nominal 20 V system rails while maintaining tight tolerance.
The device uses silicon PN-junction technology with Transmission Line Pulse (TLP)-validated dynamic resistance of 0.2 Ω, enabling low clamping voltage rise under high-current surges. Its SOD964 footprint supports automated placement and reflow soldering on fine-pitch PCBs typical in smartphone and wearable power management subsystems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage (VRWM) | 20 V - Maximum continuous DC voltage before significant leakage; sets upper limit for protected line operating voltage. |
| Breakdown Voltage (VBR) | 22.2–25.4 V @ 10 mA - Confirmed turn-on threshold ensuring robust margin above VRWM for noise immunity. |
| Clamping Voltage (VCL) | 40.3–48.3 V @ 41 A (8/20 µs) - Peak voltage seen by downstream circuitry during worst-case surge; determines IC survivability. |
| Peak Pulse Power (PPPM) | 2000 W @ 8/20 µs - Energy-handling capacity aligned with IEC 61000-4-5 Level 4 surge immunity testing. |
| Dynamic Resistance (Rdyn) | 0.2 Ω @ 10 A - Low incremental resistance enables minimal voltage overshoot during fast-rising transients. |
| Diode Capacitance (Cd) | 260 pF @ 1 MHz, 0 V - Measured junction capacitance suitable for DC power rails and low-speed interfaces (e.g., USB 2.0, I²C). |
| ESD Withstand (IEC 61000-4-2) | ±30 kV contact / ±30 kV air - Validated immunity to human-body-model ESD events without degradation. |
Pinout & Package
DSN1608-2 (SOD964) is a 2-terminal, leadless surface-mount package measuring 1.6 mm × 0.8 mm × 0.29 mm with 0.6 mm pitch and cathode-marked top-side orientation. Its ultra-low profile enables integration beneath compact battery connectors and display flex cables.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Connected to protected line (anode grounded); defines unidirectional clamping polarity for positive transients. |
| 2 (A) | Anode | Connected to ground reference; completes clamping path during overvoltage events on the protected line. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low profile | 0.29 mm max height enables placement under mechanical shields and in stacked-flex assemblies. |
| High surge robustness | 2000 W peak pulse power (8/20 µs) supports repeated exposure to industrial-grade lightning-induced surges. |
| Low dynamic impedance | 0.2 Ω Rdyn minimizes clamping voltage overshoot, reducing stress on downstream PMICs and load switches. |
| Low leakage current | 1 nA IRM at 20 V ensures negligible standby power loss in always-on battery-powered circuits. |
| ESD-hardened construction | ±30 kV IEC 61000-4-2 rating eliminates need for external ESD filters on USB-C VBUS or camera module power inputs. |
Applications
| Smartphone Power Rail Protection | Wearable Battery Charging Interface |
|---|---|
|
Use Scenario: Clamping voltage spikes on 5 V USB-C VBUS input during hot-plug and cable discharge events. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VBUS and GND to shunt surge energy before it reaches the charging IC. Use Value: 40.3–48.3 V clamping at 41 A prevents latch-up or gate oxide damage in buck-boost chargers operating up to 20 V input. |
Use Scenario: Protecting Li-ion battery charge management ICs from ESD during connector mating in fitness trackers. IC Role / Device Role / Timing Role: TVS mounted directly at micro-USB or proprietary charging port to clamp ±8 kV contact ESD pulses within 30 ns. Use Value: Sub-0.3 mm height allows placement adjacent to port without interfering with mechanical housing or flex routing. |
| Industrial Sensor Node Power Input | Automotive Infotainment USB Hub |
|
Use Scenario: Suppressing induced surges on 3.3 V or 5 V supply lines in wireless sensor nodes exposed to 24 V field wiring. IC Role / Device Role / Timing Role: TVS used in conjunction with common-mode chokes to meet IEC 61000-4-5 Level 3 (1 kV) immunity requirements. Use Value: 2000 W PPPM rating provides margin for multiple surge events without parameter drift or thermal runaway. |
Use Scenario: Secondary-level ESD protection on USB 2.0 data lines and VBUS in rear-seat entertainment systems. IC Role / Device Role / Timing Role: TVS placed after primary protection to handle residual ESD energy missed by upstream TVS arrays. Use Value: 260 pF capacitance avoids signal integrity degradation on 480 Mbps USB 2.0 differential pairs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ20A | DO-214AC package (4.5 mm × 2.7 mm × 2.3 mm); 30 A IPPM (8/20 µs); 400 W PPPM; 0.45 Ω Rdyn | Higher profile and lower power rating; suited for board-edge mounting, not internal thin modules | Select when board space permits larger footprint and surge duty cycle is infrequent. |
| TPSMF20A | SOD-123FL package (2.7 mm × 1.7 mm × 1.0 mm); 30 A IPPM; 600 W PPPM; 0.35 Ω Rdyn; 350 pF Cd | 2.5× taller than DSN1608-2; higher capacitance limits use on high-speed lines | Choose for cost-sensitive designs where 0.29 mm height is non-critical and 260 pF is not required. |
Compared with SMAJ20A and TPSMF20A, PTVS20VZ1USK uniquely combines sub-0.3 mm height, 2000 W surge capability, and 260 pF capacitance-making it the only option qualified for direct integration into ultrathin mobile power rails where mechanical clearance and signal integrity are simultaneously constrained.
Availability
PTVS20VZ1USK is available at Aetrix Electronics and suitable for smartphone power rail protection, wearable battery charging interface hardening, and industrial sensor node power input surge suppression requiring stable component supply across high-mix production runs.
Supply support for PTVS20VZ1USK 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-including logic, discrete, and MOSFETs-with manufacturing rooted in process technology leadership and automotive-grade quality systems.
PTVS20VZ1USK belongs to Nexperia's ultra-small-package TVS portfolio engineered specifically for mobile and portable electronics where board area, thickness, and ESD robustness are co-constrained design parameters.
FAQ
What is the maximum operating temperature for PTVS20VZ1USK?
The device supports ambient temperatures from −40 °C to +125 °C and junction temperatures up to +150 °C. Its thermal resistance (RθJA) is optimized for low-profile PCB layouts with standard copper pour; derating of peak pulse power begins above +25 °C per Figure 6 in the datasheet, reaching ~70% of rated PPPM at +100 °C ambient.
Can PTVS20VZ1USK be used for bidirectional protection?
No-it is a unidirectional TVS diode with cathode (pin 1) and anode (pin 2) terminals. It clamps only positive transients on the cathode-connected line relative to ground. For bidirectional protection, a separate symmetric TVS (e.g., PTVS20VU1USK) or back-to-back configuration is required.
How does the 0.2 Ω dynamic resistance impact system-level protection?
A 0.2 Ω Rdyn reduces voltage overshoot during fast-rising transients by limiting the ΔV = I × Rdyn term-e.g., at 20 A surge current, overshoot is held to ≤4 V above clamping baseline. This directly lowers stress on downstream regulators and improves pass/fail margin in IEC 61000-4-5 testing.
Is the marking code 'Z9' sufficient for full traceability?
Yes-the 'Z9' top-side marking is the official Nexperia wafer lot and assembly code for PTVS20VZ1USK, fully traceable to manufacturing batch, test date, and facility via Nexperia's quality portal. It corresponds exclusively to this part number and package variant (DSN1608-2/SOD964).
PTVS20VZ1USKYL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Package/Case:
- 0603 (1608 Metric)
- 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:
- 36.9V
- Current - Peak Pulse (10/1000µs):
- 6A
- Power - Peak Pulse:
- 220W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 260pF @ 1MHz
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DSN1608-2
PTVS20VZ1USKYL FAQ
1.How can I place an order for PTVS20VZ1USKYL through Aetrix?
Please submit a Request for Quotation (RFQ) for PTVS20VZ1USKYL 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 PTVS20VZ1USKYL reliable?
The price and inventory of PTVS20VZ1USKYL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PTVS20VZ1USKYL is usually 5 days.
3.What payment methods are accepted for PTVS20VZ1USKYL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PTVS20VZ1USKYL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PTVS20VZ1USKYL?
PTVS20VZ1USKYL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PTVS20VZ1USKYL 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 PTVS20VZ1USKYL?
For technical support, including PTVS20VZ1USKYL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PTVS20VZ1USKYL requirements.
6.How does Aetrix verify that PTVS20VZ1USKYL is sourced from the original manufacturer or authorized distributors?
All PTVS20VZ1USKYL 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 PTVS20VZ1USKYL meets industry standards.
7.What is the process for return or replacement of PTVS20VZ1USKYL?
All PTVS20VZ1USKYL units undergo pre-shipment inspection (PSI). If there is an issue with PTVS20VZ1USKYL, 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 PTVS20VZ1USKYL part is unused and in its original packaging.
Return procedure for PTVS20VZ1USKYL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PTVS20VZ1USKYL Tags
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Nexperia USA Inc.
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