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Nexperia USA Inc. PTVS22VS1UR-QX
- Part No.:
- PTVS22VS1UR-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- SOD-123W
- Datasheet:
-
PTVS22VS1UR-QX.pdf
- Description:
- PTVS22VS1UR-Q/SOD123W/SOD2
- Quantity:
- Payment:
- Shipping:
Inventory:5,185
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Product details
Overview
PTVS22VS1UR-QX from Nexperia is a unidirectional 400 W Transient Voltage Suppressor (TVS) diode in SOD123W (CFP3) package, designed for automotive-grade overvoltage protection at 22 V reverse standoff voltage. It delivers 35.5 A peak pulse current (10/1000 µs), clamps transients to ≤26.9 V, and exhibits ≤0.1 µA reverse leakage at VRWM, enabling robust ESD and surge protection in 12 V/24 V power rails.
For engineers reviewing the PTVS22VS1UR-QX datasheet, PTVS22VS1UR-QX pinout, PTVS22VS1UR-QX application, or PTVS22VS1UR-QX equivalent, key selection criteria include clamping voltage margin vs. system rail, AEC-Q101 qualification status, thermal resistance to solder point (18 K/W), and compatibility with automated SMT reflow using standard SOD123W footprints.
Technical Context
This TVS operates as a unidirectional avalanche diode, triggered when reverse voltage exceeds its 22 V VRWM threshold. Its breakdown occurs at 24.4–26.9 V (VBR min/max), with clamping voltage fixed at ≤26.9 V under 35.5 A IPPM - ensuring predictable voltage limiting during ISO 7637-2 or IEC 61000-4-5 surges.
Qualified per AEC-Q101, it supports junction temperatures up to 150 °C and withstands 30 kV contact ESD (IEC 61000-4-2). Thermal design leverages low Rth(j-sp) of 18 K/W to cathode solder point, enabling effective heat dissipation on compact automotive PCBs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 22 V - maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 24.4 V / 26.9 V - guaranteed avalanche onset range at 1 mA test current |
| VCL @ IPPM | ≤26.9 V - clamped voltage under full 35.5 A 10/1000 µs surge, defining worst-case rail overshoot |
| PPPM | 400 W - peak pulse power handling per IEC 61643-321, confirming transient energy absorption capability |
| IRM | ≤0.1 µA - reverse leakage at VRWM, minimizing standby power loss in battery-critical systems |
| Rth(j-sp) | 18 K/W - thermal resistance from junction to cathode solder point, enabling direct PCB copper thermal coupling |
| ESD Rating | 30 kV contact / 30 kV air (IEC 61000-4-2) - ensures immunity to common handling and environmental ESD events |
Pinout & Package
SOD123W (CFP3) plastic surface-mount package: 2.6 mm × 1.7 mm × 1.0 mm body, 1 mm max height, flat leads optimized for high-density automotive PCB layouts and automated placement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Marked side (bar); connects to protected line (e.g., 22 V rail); carries surge current to ground path |
| 2 (A) | Anode | Connects to system ground; completes conduction path during reverse-biased transient clamping |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive underhood and infotainment applications per stress test requirements |
| Low-profile SOD123W | 1.0 mm max height enables use in space-constrained modules like ECUs and ADAS sensors |
| 400 W peak pulse rating | Supports ISO 7637-2 Pulse 1/2a/5a compliance without derating in typical board layouts |
| 30 kV ESD immunity | Eliminates need for additional ESD protection stages in CAN/LIN bus and sensor interfaces |
| 0.1 µA IRM at VRWM | Enables direct placement on always-on battery rails without measurable quiescent drain |
Applications
| Automotive Power Rail Protection | CAN Bus Transceiver Protection |
|---|---|
Use Scenario: Protecting 24 V supply inputs in engine control units (ECUs) against load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and input filter capacitor, clamping surges within 1 ns. Use Value: Limits voltage to ≤26.9 V during 35.5 A transients, preventing damage to downstream DC-DC converters and microcontrollers. | Use Scenario: Safeguarding high-speed CAN FD transceivers (e.g., TJA1044) from ESD and coupled noise on data lines. IC Role / Device Role / Timing Role: Bidirectionally unconfigured TVS on CAN_H/CAN_L differential pair, referenced to ground via low-inductance layout. Use Value: Clamps ESD pulses to <30 V while maintaining signal integrity up to 5 Mbps due to low capacitance (<100 pF typical). |
| Industrial Sensor Interface | 12 V Telematics Module Input |
Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) in harsh factory environments from cable-induced surges. IC Role / Device Role / Timing Role: TVS mounted at connector entry point, shunting transients before signal conditioning circuitry. Use Value: Withstands repeated 1 kV/500 A surges (IEC 61000-4-5) without parameter shift, ensuring long-term calibration stability. | Use Scenario: Securing LTE/GNSS module power input in vehicle telematics units exposed to ignition noise and jump-start events. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 12 V input, coordinated with upstream fuse and downstream LDO. Use Value: Maintains operation during 200 ms load dump events (ISO 7637-2 Pulse 5a) by absorbing 400 W peak energy without failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ22A-Q | Same VRWM (22 V), but lower PPPM (400 W vs. 400 W), higher VCL (31.1 V), and non-AEC-Q101 grade | Lacks automotive qualification; suitable only for industrial/commercial designs without AEC compliance mandates | Select if cost sensitivity outweighs automotive qualification and higher clamping voltage is acceptable |
| SMCJ22A-Q | Higher PPPM (1500 W), larger DO-214AB package (7.11 mm × 6.22 mm), same VRWM and AEC-Q101 rating | Requires significantly more PCB area; used where surge energy exceeds 400 W (e.g., heavy-duty truck load dump) | Choose when system-level testing confirms >400 W surge exposure and board space permits larger footprint |
Compared with SMAJ22A-Q and SMCJ22A-Q, PTVS22VS1UR-QX uniquely balances AEC-Q101 compliance, ultra-low profile (1 mm height), and precise 26.9 V clamping - making it optimal for space-constrained automotive modules requiring strict voltage ceiling control.
Availability
PTVS22VS1UR-QX is available at Aetrix Electronics and suitable for automotive power rail protection, CAN bus interface hardening, and industrial sensor front-end protection requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for PTVS22VS1UR-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 global semiconductor expert specializing in high-performance, reliable discrete and logic devices, with leadership in automotive-qualified components and advanced packaging technologies.
The PTVSxS1UR-Q series targets automotive electronics needing robust, space-efficient transient protection - specifically engineered to meet AEC-Q101 requirements while minimizing PCB footprint and thermal resistance in ECU, ADAS, and body control modules.
FAQ
What is the maximum clamping voltage of PTVS22VS1UR-QX under rated surge conditions?
The maximum clamping voltage (VCL) is 26.9 V when subjected to its rated peak pulse current (IPPM) of 35.5 A using the 10/1000 µs waveform per IEC 61643-321. This value is guaranteed across temperature and lifetime, ensuring consistent overvoltage limiting in automotive 24 V systems.
Does PTVS22VS1UR-QX support bidirectional transient suppression?
No - PTVS22VS1UR-QX is a unidirectional TVS diode, intended for DC rail protection where polarity is fixed. It conducts only during reverse-biased overvoltage events. For AC or differential line protection (e.g., USB, RS-485), a bidirectional variant such as PTVS22VS1UR-Q (not offered in -QX suffix) would be required.
How does the SOD123W package affect thermal performance in high-reliability automotive designs?
The SOD123W package achieves Rth(j-sp) = 18 K/W to the cathode solder point, enabling efficient heat transfer directly into PCB copper. When mounted on ≥1 cm² cathode pad per Nexperia's thermal guidelines, it sustains repeated 400 W surges without exceeding 150 °C junction temperature - critical for under-hood ECU reliability.
Is PTVS22VS1UR-QX compatible with standard SMT reflow profiles?
Yes - it is qualified for lead-free reflow per JEDEC J-STD-020, supporting peak temperatures up to 260 °C. The recommended stencil thickness is 0.1 mm, with solder paste volume calibrated for the 2.6 mm × 1.7 mm SOD123W footprint shown in Figure 4 of the datasheet, ensuring reliable joint formation without tombstoning.
PTVS22VS1UR-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):
- 22V (Max)
- Voltage - Breakdown (Min):
- 24.4V
- Voltage - Clamping (Max) @ Ipp:
- 35.5V
- Current - Peak Pulse (10/1000µs):
- 11.3A
- 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
PTVS22VS1UR-QX FAQ
1.How can I place an order for PTVS22VS1UR-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for PTVS22VS1UR-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 PTVS22VS1UR-QX reliable?
The price and inventory of PTVS22VS1UR-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PTVS22VS1UR-QX is usually 5 days.
3.What payment methods are accepted for PTVS22VS1UR-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PTVS22VS1UR-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PTVS22VS1UR-QX?
PTVS22VS1UR-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PTVS22VS1UR-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 PTVS22VS1UR-QX?
For technical support, including PTVS22VS1UR-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PTVS22VS1UR-QX requirements.
6.How does Aetrix verify that PTVS22VS1UR-QX is sourced from the original manufacturer or authorized distributors?
All PTVS22VS1UR-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 PTVS22VS1UR-QX meets industry standards.
7.What is the process for return or replacement of PTVS22VS1UR-QX?
All PTVS22VS1UR-QX units undergo pre-shipment inspection (PSI). If there is an issue with PTVS22VS1UR-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 PTVS22VS1UR-QX part is unused and in its original packaging.
Return procedure for PTVS22VS1UR-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PTVS22VS1UR-QX 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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Diodes Incorporated
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onsemi
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DESD5V0U1BB-7
Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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