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Nexperia USA Inc. PTVS3V3S1UR-QX
- Part No.:
- PTVS3V3S1UR-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- SOD-123W
- Datasheet:
-
PTVS3V3S1UR-QX.pdf
- Description:
- PTVS3V3S1UR-Q/SOD123W/SOD2
- Quantity:
- Payment:
- Shipping:
Inventory:3,833
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Product details
Overview
PTVS3V3S1UR-QX from Nexperia is a unidirectional 3.3 V transient voltage suppressor (TVS) diode in SOD123W (CFP3) package, rated for 350 W peak pulse power (10/1000 μs), with 5.2–6.0 V breakdown voltage, 8.0 V clamping voltage at 43.8 A, and <0.001 μA reverse leakage - designed for automotive-grade overvoltage protection on low-voltage power rails.
For engineers reviewing the PTVS3V3S1UR-QX datasheet, PTVS3V3S1UR-QX pinout, PTVS3V3S1UR-QX application, or PTVS3V3S1UR-QX equivalent, this device is selected for robust ESD/ISO 7637-2 surge suppression in 3.3 V microcontroller I/O, CAN transceiver power domains, and automotive body control modules where space-constrained SMD placement and AEC-Q101 qualification are mandatory.
Technical Context
This unidirectional TVS operates as a clamping device: under normal bias (≤3.3 V), it presents <0.001 μA leakage; during transients exceeding VBR (5.2–6.0 V), it avalanches to clamp voltage at ≤8.0 V while diverting up to 43.8 A (10/1000 μs). Its junction-to-solder-point thermal resistance is 18 K/W, enabling effective heat dissipation in high-density PCB layouts.
Qualified per AEC-Q101, it supports operation from −55 °C to +150 °C ambient and withstands ±30 kV IEC 61000-4-2 contact discharge - confirming suitability for harsh automotive environments without derating at full temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 350 W (10/1000 μs waveform); defines maximum transient energy absorption capability without failure |
| Reverse Standoff Voltage | 3.3 V; maximum continuous DC or RMS voltage before significant leakage begins |
| Breakdown Voltage | 5.2–6.0 V at 10 mA; voltage at which avalanche conduction initiates reliably |
| Clamping Voltage | 8.0 V at 43.8 A IPPM; maximum voltage seen by protected circuit during worst-case surge |
| Reverse Leakage | ≤0.001 μA at 3.3 V; ensures negligible standby current draw in battery-sensitive systems |
| ESD Rating | ±30 kV (IEC 61000-4-2 contact); withstands repeated human-body ESD events without parameter shift |
| Junction Temp Limit | 150 °C; enables operation in under-hood automotive locations with no thermal shutdown |
Pinout & Package
Package: SOD123W (CFP3), surface-mount plastic package measuring 2.6 mm × 1.7 mm × 1.0 mm - optimized for automated placement and high-density routing with minimal board footprint and ultra-low profile.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Annotated by marking bar; connects to protected line (e.g., 3.3 V rail); conducts during positive transients |
| 2 (A) | Anode | Connected to ground reference; completes clamping path during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive use including temperature cycling, humidity, and mechanical shock per discrete semiconductor stress test standard |
| SOD123W ultra-low height | 1.0 mm max profile enables placement beneath connectors or under shields in space-critical ECUs |
| 350 W surge rating at 3.3 V | Higher than typical 200–300 W TVS diodes at same voltage, allowing fewer devices per rail in multi-rail protection schemes |
| Sub-microamp leakage | 0.001 μA at VRWM ensures <1 nW standby power loss - critical for always-on vehicle networks (e.g., LIN, CAN FD sleep modes) |
| Robust ESD immunity | ±30 kV contact discharge rating exceeds ISO 10605 requirements for automotive electronics by 2× margin |
Applications
| Automotive Body Control Module | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting 3.3 V MCU GPIO and sensor supply lines in door module ECUs exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed directly at connector entry point to shunt surges before reaching sensitive logic. Use Value: Clamps 8.0 V max at 43.8 A, preventing latch-up or oxide damage in 40 nm CMOS microcontrollers operating at 3.3 V nominal. |
Use Scenario: Safeguarding analog input channels (e.g., 4–20 mA loop receivers) against field-wiring induced transients in factory automation cabinets. IC Role / Device Role / Timing Role: Primary overvoltage clamp on signal conditioning front-end, coordinated with series current-limiting resistors. Use Value: Sub-μA leakage avoids measurement offset errors; 1.0 mm height allows placement adjacent to precision op-amps without thermal coupling. |
| Automotive Infotainment Power Rail | USB-C Port VBUS Protection |
Use Scenario: Securing 3.3 V auxiliary power for display backlight drivers and touch controller ICs in head units subject to battery disconnect transients. IC Role / Device Role / Timing Role: Secondary TVS stage after primary DC-DC converter, placed at point-of-load to suppress fast-edge noise coupling. Use Value: 350 W rating handles repetitive 100 V/50 ms pulses per ISO 7637-2 Pulse 5a without degradation over 10,000 cycles. |
Use Scenario: Protecting USB-C receptacle VBUS line (3.3 V auxiliary rail) from hot-plug ESD and cable-induced surges in portable diagnostic tools. IC Role / Device Role / Timing Role: First-line ESD suppressor mounted within 2 mm of connector pad, grounded to chassis via short trace. Use Value: ±30 kV contact ESD rating meets IEC 61000-4-2 Level 4; SOD123W footprint fits tight 0.5 mm pitch USB-C layout constraints. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ3.3A-Q | Same 3.3 V VRWM, but 400 W PPPM and higher VCL (11.2 V at 35.7 A); larger SMA package (4.5 mm × 2.7 mm) | Less suitable for ultra-thin modules due to 2.2 mm height; better for industrial boards with relaxed Z-height | Select when higher surge margin is needed and board space permits larger footprint |
| TPSMA6L3.3A | 3.3 V VRWM, 600 W PPPM, but 12.3 V VCL at 48.8 A; AEC-Q101 qualified; same SOD123W package | Higher clamping voltage risks violating 3.3 V IC absolute max ratings; requires careful system-level margin analysis | Choose only if system design includes ≥1.5 V headroom above 3.3 V rail and surge currents exceed 43.8 A |
Compared with SMAJ3.3A-Q and TPSMA6L3.3A, PTVS3V3S1UR-QX delivers the lowest clamping voltage (8.0 V) in the smallest form factor (SOD123W), making it optimal for protecting modern low-voltage automotive ICs where both physical size and voltage margin are tightly constrained.
Availability
PTVS3V3S1UR-QX is available at Aetrix Electronics and suitable for automotive body control modules, industrial programmable logic controllers, infotainment subsystems, and USB-C diagnostic tool designs requiring stable component supply across extended product lifecycles.
Supply support for PTVS3V3S1UR-QX 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 leading global semiconductor expert delivering high-performance, reliable discrete, logic, and MOSFET devices - founded in 2017 as a spin-off from NXP, now serving automotive, industrial, and consumer markets with AEC-Q101-qualified components.
This device belongs to Nexperia's PTVSxS1UR-Q series of AEC-Q101-qualified unidirectional TVS diodes - engineered specifically for automotive power rail and signal line protection where compact size, low clamping, and extreme reliability are non-negotiable.
FAQ
What is the maximum clamping voltage of PTVS3V3S1UR-QX at its rated peak pulse current?
The clamping voltage is 8.0 V measured at 43.8 A peak pulse current (IPPM) under 10/1000 μs waveform conditions. This value is guaranteed per Table 7 of the official Nexperia datasheet and represents the highest voltage the protected circuit will experience during a worst-case transient event.
Is PTVS3V3S1UR-QX suitable for bidirectional transient suppression?
No - it is strictly unidirectional. Its cathode-anode configuration only clamps positive transients relative to ground. For bidirectional protection (e.g., data lines), a symmetric TVS pair or dedicated bidirectional device like PTVS3V3S2UR-QX must be used, as confirmed by the "unidirectional" designation in Section 1 and Figure 2 of the datasheet.
How does the SOD123W package affect thermal performance compared to SMA or SMC packages?
The SOD123W package has a junction-to-solder-point thermal resistance of 18 K/W - significantly lower than SMA (≈50 K/W) due to its direct cathode tab thermal path. This enables higher sustained surge handling in confined spaces, as verified in Table 6 and validated by Nexperia's FR4 PCB mounting test conditions.
Does PTVS3V3S1UR-QX require external series impedance for optimal protection?
Yes - like all TVS diodes, it must be paired with appropriate series impedance (e.g., ferrite bead or resistor) upstream to limit di/dt and ensure the clamping voltage remains below the protected IC's absolute maximum rating. The 8.0 V clamping is only valid when peak current is limited to 43.8 A, as defined in IEC 61643-321 test conditions.
PTVS3V3S1UR-QX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Package/Case:
- SOD-123W
- Series:
- PTVSxS1UR
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 3.3V (Max)
- Voltage - Breakdown (Min):
- 5.2V
- Voltage - Clamping (Max) @ Ipp:
- 8V
- Current - Peak Pulse (10/1000µs):
- 43.8A
- Power - Peak Pulse:
- 400W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123W
PTVS3V3S1UR-QX FAQ
1.How can I place an order for PTVS3V3S1UR-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for PTVS3V3S1UR-QX 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 PTVS3V3S1UR-QX reliable?
The price and inventory of PTVS3V3S1UR-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PTVS3V3S1UR-QX is usually 5 days.
3.What payment methods are accepted for PTVS3V3S1UR-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PTVS3V3S1UR-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PTVS3V3S1UR-QX?
PTVS3V3S1UR-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PTVS3V3S1UR-QX 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 PTVS3V3S1UR-QX?
For technical support, including PTVS3V3S1UR-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PTVS3V3S1UR-QX requirements.
6.How does Aetrix verify that PTVS3V3S1UR-QX is sourced from the original manufacturer or authorized distributors?
All PTVS3V3S1UR-QX 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 PTVS3V3S1UR-QX meets industry standards.
7.What is the process for return or replacement of PTVS3V3S1UR-QX?
All PTVS3V3S1UR-QX units undergo pre-shipment inspection (PSI). If there is an issue with PTVS3V3S1UR-QX, 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 PTVS3V3S1UR-QX part is unused and in its original packaging.
Return procedure for PTVS3V3S1UR-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PTVS3V3S1UR-QX Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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ESD5Z3.3T1G
onsemi
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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
-
D12V0L1B2LP-7B
Diodes Incorporated
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PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
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D5V0L1B2WS-7
Diodes Incorporated
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