NXP Semiconductors PTVS7V5Z1USK315
- Part No.:
- PTVS7V5Z1USK315
- Manufacturer:
- NXP Semiconductors
- Category:
- TVS Diodes
- Package:
- 0603 (1608 Metric)
- Datasheet:
-
PTVS7V5Z1USK315.pdf
- Description:
- PTVS7V5Z1USK - TRANSIENT VOLTAGE
- Quantity:
- Payment:

- Shipping:

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Product details
Overview
PTVS7V5Z1USK from Nexperia is a unidirectional transient voltage suppressor (TVS) diode in a DSN1608-2 (SOD964) leadless package, designed for ESD and surge protection on low-voltage signal/power lines in space-constrained mobile applications. It delivers 7.5 V reverse standoff voltage, 100 A peak pulse current (8/20 µs), and clamps to 22 V at that stress level, with dynamic resistance of 0.08 Ω and only 0.29 mm height.
For engineers reviewing the PTVS7V5Z1USK datasheet, PTVS7V5Z1USK pinout, PTVS7V5Z1USK application, or PTVS7V5Z1USK equivalent, key selection criteria include its ultra-low profile for thin handheld devices, high IEC 61000-4-2 ESD immunity (±30 kV contact/air), sub-1 nA leakage at 7.5 V, and 710 pF capacitance suitable for USB 2.0 and audio line protection.
Technical Context
The PTVS7V5Z1USK operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds 7.5 V (VRWM), with sharp breakdown at 8.33–9.65 V (VBR @ 10 mA). Its clamping behavior is characterized by low dynamic resistance (0.08 Ω), enabling fast response and minimal voltage overshoot during 8/20 µs surges up to 100 A.
It complies with IEC 61000-4-5 (surge), IEC 61000-4-2 (ESD), and IEC 61643-321 (10/1000 µs pulse), and is rated for operation from −40 °C to +125 °C ambient, with junction temperature up to 150 °C. The device uses silicon die in a thermally efficient DSN1608-2 package with direct copper pad contact for low thermal resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reverse Standoff Voltage (VRWM) | 7.5 V - Maximum continuous reverse voltage before conduction begins; sets operating margin for 5 V or 3.3 V rail protection. |
| Breakdown Voltage (VBR) | 8.33–9.65 V @ 10 mA - Confirmed avalanche onset range; ensures reliable triggering above system nominal voltage. |
| Clamping Voltage (VCL) | 18.4–22 V @ 100 A, 8/20 µs - Peak voltage seen by protected circuit during worst-case surge; critical for IC survival. |
| Peak Pulse Power (PPPM) | 2200 W @ 8/20 µs - Sustains high-energy transients without failure; enables robust front-end protection in noisy environments. |
| Dynamic Resistance (Rdyn) | 0.08 Ω - Low impedance during clamping; minimizes voltage rise under high di/dt, improving protection fidelity. |
| Capacitance (Cd) | 710 pF @ 1 MHz, 0 V - Measured junction capacitance; compatible with low-speed interfaces (e.g., I²C, UART) but not high-speed USB 3.0. |
| ESD Rating | ±30 kV (IEC 61000-4-2, contact/air) - Full-system ESD immunity without external shielding; eliminates need for secondary protection layers. |
Pinout & Package
PTVS7V5Z1USK is housed in the DSN1608-2 (SOD964) leadless package: 1.6 mm × 0.8 mm × 0.29 mm body, 0.6 mm pitch, with cathode indicated by a marking bar on the top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Connected to protected line (e.g., USB D+); conducts when line voltage exceeds VRWM relative to ground. |
| 2 (A) | Anode | Connected to ground reference; provides return path for surge current; requires low-inductance PCB grounding. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low profile (0.29 mm height) | Enables integration into <1 mm-thin smartphones, wearables, and foldable displays without compromising mechanical stack-up. |
| 100 A peak pulse current (8/20 µs) | Withstands severe lightning-induced surges per IEC 61000-4-5 Level 4, protecting power rails and interface lines in industrial handhelds. |
| 0.08 Ω dynamic resistance | Reduces clamping voltage overshoot under fast-rising transients, preserving timing margins in high-speed digital receivers. |
| 710 pF capacitance | Low enough for USB 2.0 (480 Mbps) and audio codec lines without signal integrity degradation or insertion loss. |
| ±30 kV ESD rating | Meets highest IEC 61000-4-2 severity level out-of-the-box, eliminating need for additional ESD components in end-product design-in. |
Applications
| USB 2.0 Data Line Protection | Smartphone Power Rail Clamping |
|---|---|
|
Use Scenario: Protecting D+ and D− lines in compact USB OTG circuits against ESD events and cable discharge. IC Role / Device Role / Timing Role: Unidirectional TVS placed between data line and ground, activated only during positive overvoltage events on the signal line. Use Value: 710 pF capacitance avoids signal distortion at 480 Mbps; ±30 kV ESD rating ensures compliance with USB-IF ESD test requirements. |
Use Scenario: Clamping 5 V or 3.3 V power inputs in battery-powered mobile devices exposed to hot-plug and load-dump transients. IC Role / Device Role / Timing Role: Standoff-mode protector on input rail, conducting only during overvoltage excursions exceeding 7.5 V. Use Value: 2200 W peak power handling prevents failure during repeated 100 A surges; 0.29 mm height allows placement under camera modules or display flex cables. |
| Industrial Handheld Keypad Protection | Audio Codec Interface Shielding |
|
Use Scenario: Safeguarding membrane keypad scan lines in ruggedized field instruments subjected to repeated ESD exposure. IC Role / Device Role / Timing Role: Point-of-entry TVS on each row/column line, referenced to local ground plane with short trace routing. Use Value: Sub-1 nA leakage at 7.5 V prevents false key detection; 0.08 Ω Rdyn ensures fast clamping before microcontroller GPIO damage occurs. |
Use Scenario: Suppressing pop/click noise and ESD-induced latch-up on analog audio paths (e.g., headset MIC/HP lines) in portable media players. IC Role / Device Role / Timing Role: Bidirectional-capable unidirectional diode used with series resistor to limit current, grounded on anode side. Use Value: 7.5 V VRWM aligns with typical audio bias voltages; 710 pF adds negligible loading to 20 kHz bandwidth signals. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ7.5A | DO-214AC package (4.5 mm × 2.7 mm × 2.2 mm); 7.5 V VRWM; 100 A IPPM; 22 V VCL; higher capacitance (~1000 pF). | Larger footprint and height; unsuitable for ultra-thin mobile designs; better thermal mass for sustained surge dissipation. | Choose SMAJ7.5A for cost-sensitive industrial panels where board space and thickness are not constrained. |
| TPD2E001DRYR | 2-channel, 0.8 pF per line, 5.5 V VRWM, ±8 kV ESD; DSBGA-6 package (1.0 mm × 1.2 mm × 0.5 mm); integrated dual-line protection. | Lower voltage rating and ESD level; optimized for high-speed digital interfaces like HDMI or MIPI, not power rail clamping. | Choose TPD2E001DRYR when protecting two low-capacitance signal pairs simultaneously in space-limited but non-surge-heavy applications. |
Compared with SMAJ7.5A and TPD2E001DRYR, the PTVS7V5Z1USK uniquely balances ultra-miniaturization (DSN1608-2), high surge capability (100 A/2200 W), and strong ESD immunity (±30 kV) - making it the only option among the three qualified for thin mobile power rail and USB 2.0 protection without layout compromise.
Availability
PTVS7V5Z1USK is available at Aetrix Electronics and suitable for smartphone power management, industrial handheld ESD hardening, and USB 2.0 interface protection requiring stable component supply across high-volume production cycles.
Supply support for PTVS7V5Z1USK 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-performance, energy-efficient logic, discrete, and MOSFET solutions, with leadership in automotive, industrial, and mobile markets.
The PTVS7V5Z1USK belongs to Nexperia's ultra-small TVS portfolio, engineered specifically for next-generation mobile and wearable electronics where board area, thickness, and ESD robustness are co-constrained design drivers.
FAQ
What is the maximum clamping voltage of the PTVS7V5Z1USK under a 100 A 8/20 µs surge?
The PTVS7V5Z1USK clamps to 18.4–22 V under a 100 A, 8/20 µs surge waveform per IEC 61000-4-5. This value represents the peak voltage imposed on the protected circuit during worst-case transient conditions and is measured between pins 1 (K) and 2 (A) at Tamb = 25 °C. Designers must ensure downstream ICs tolerate this clamped voltage with margin.
Is the PTVS7V5Z1USK suitable for bidirectional signal line protection?
No - the PTVS7V5Z1USK is a unidirectional TVS diode, configured to clamp only positive transients on the cathode (pin 1) relative to anode (pin 2). For bidirectional protection (e.g., RS-485, CAN), a dedicated bidirectional TVS such as PTVS3V3S1UR or dual-series configuration is required. Using PTVS7V5Z1USK on AC-coupled or bipolar lines risks reverse breakdown failure.
What does the marking code 'Z3' indicate on the PTVS7V5Z1USK package?
The marking code 'Z3' laser-etched on the top surface of the PTVS7V5Z1USK identifies the specific device variant and confirms authenticity per Nexperia's traceability system. It corresponds exclusively to the PTVS7V5Z1USK type number and is used in automated optical inspection (AOI) and assembly verification. No functional or parametric deviation is associated with this marking.
Can the PTVS7V5Z1USK be used on a 5 V power rail without risk of premature conduction?
Yes - the PTVS7V5Z1USK has a 7.5 V reverse standoff voltage (VRWM), providing 2.5 V headroom above a nominal 5 V rail. Its typical breakdown starts at 8.33 V, ensuring no conduction during normal operation, including tolerance bands and ripple. Conduction only occurs during overvoltage events exceeding VRWM, making it safe for direct placement on stable 5 V inputs.
How does the 0.29 mm package height of the PTVS7V5Z1USK impact PCB assembly?
The 0.29 mm height of the PTVS7V5Z1USK enables placement beneath tight-clearance components like camera modules or display flex connectors. During reflow, its DSN1608-2 footprint requires precise stencil aperture (0.7 mm × 0.27 mm) and solder paste volume control to prevent bridging or tombstoning. Nexperia provides validated reflow profiles and land pattern dimensions (Fig. 17) to ensure first-pass yield >99.9% in high-mix SMT lines.
PTVS7V5Z1USK315 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- NXP Semiconductors
- Package/Case:
- 0603 (1608 Metric)
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 7.5V (Max)
- Voltage - Breakdown (Min):
- 8.33V
- Voltage - Clamping (Max) @ Ipp:
- 22V
- Current - Peak Pulse (10/1000µs):
- 17A
- Power - Peak Pulse:
- 230W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- 710pF @ 1MHz
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DSN1608-2
PTVS7V5Z1USK315 FAQ
1.How can I place an order for PTVS7V5Z1USK315 through Aetrix?
Please submit a Request for Quotation (RFQ) for PTVS7V5Z1USK315 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 PTVS7V5Z1USK315 reliable?
The price and inventory of PTVS7V5Z1USK315 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PTVS7V5Z1USK315 is usually 5 days.
3.What payment methods are accepted for PTVS7V5Z1USK315?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PTVS7V5Z1USK315 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PTVS7V5Z1USK315?
PTVS7V5Z1USK315 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PTVS7V5Z1USK315 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 PTVS7V5Z1USK315?
For technical support, including PTVS7V5Z1USK315 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PTVS7V5Z1USK315 requirements.
6.How does Aetrix verify that PTVS7V5Z1USK315 is sourced from the original manufacturer or authorized distributors?
All PTVS7V5Z1USK315 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 PTVS7V5Z1USK315 meets industry standards.
7.What is the process for return or replacement of PTVS7V5Z1USK315?
All PTVS7V5Z1USK315 units undergo pre-shipment inspection (PSI). If there is an issue with PTVS7V5Z1USK315, 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 PTVS7V5Z1USK315 part is unused and in its original packaging.
Return procedure for PTVS7V5Z1USK315:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PTVS7V5Z1USK315 Tags

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Toshiba Semiconductor and Storage

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Diodes Incorporated
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