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Nexperia USA Inc. PTVS54VS1UR-QX
- Part No.:
- PTVS54VS1UR-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- SOD-123W
- Datasheet:
-
PTVS54VS1UR-QX.pdf
- Description:
- PTVS54VS1UR-Q/SOD123W/SOD2
- Quantity:
- Payment:
- Shipping:
Inventory:4,948
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Product details
Overview
PTVS54VS1UR-QX from Nexperia is a unidirectional 400 W Transient Voltage Suppressor (TVS) diode in SOD123W (CFP3) package, designed for automotive-grade overvoltage protection at 54 V reverse standoff voltage. It delivers 87.1 A peak pulse current (10/1000 μs), clamps transients to ≤66.3 V, and exhibits ≤0.1 μA reverse leakage at VRWM, enabling robust ESD and surge suppression in power rails.
For engineers reviewing the PTVS54VS1UR-QX datasheet, PTVS54VS1UR-QX pinout, PTVS54VS1UR-QX application, or PTVS54VS1UR-QX equivalent, key selection criteria include its AEC-Q101 qualification, 1 mm profile for space-constrained PCB layouts, low thermal resistance (Rth(j-sp) = 18 K/W), and compatibility with 12 V/24 V/48 V automotive subsystems requiring IEC 61000-4-2 ±30 kV contact discharge immunity.
Technical Context
This unidirectional TVS operates as a clamping device: under normal bias it blocks current below VRWM = 54 V, but triggers avalanche conduction when transient voltage exceeds VBR = 60.0–66.3 V (typ/max), limiting downstream voltage to VCL ≤ 66.3 V at IPPM = 87.1 A. Its junction-to-solder-point thermal resistance of 18 K/W enables effective heat dissipation during repetitive surges.
The device complies with IEC 61643-321 (10/1000 μs waveform) and AEC-Q101 stress testing, supporting operation from −55 °C to +150 °C ambient. Its cathode-marked SOD123W footprint ensures unambiguous polarity alignment in high-reliability automotive power management circuits.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 54 V reverse standoff voltage - defines maximum continuous operating voltage before clamping initiates |
| VBR | 60.0–66.3 V breakdown range at IR = 1 mA - sets precise avalanche turn-on threshold for predictable clamping onset |
| VCL @ IPPM | ≤66.3 V clamping voltage at 87.1 A - limits protected circuit voltage during worst-case 400 W transient |
| PPPM | 400 W peak pulse power (10/1000 μs) - sustains high-energy surges without failure per IEC 61643-321 |
| IRM | ≤0.1 μA reverse leakage at VRWM - minimizes standby power loss in battery-critical systems |
| ESD Rating | ±30 kV contact / ±30 kV air per IEC 61000-4-2 - provides full-system ESD immunity without external shielding |
| Tj max | +150 °C maximum junction temperature - supports under-hood automotive deployment with no derating up to 125 °C ambient |
Pinout & Package
SOD123W (CFP3) surface-mount plastic package: 2.6 mm × 1.7 mm × 1.0 mm body height, flat lead profile optimized for automated assembly and thermal performance on FR4 PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Marked side (bar) - connects to protected line; avalanche conduction occurs from anode to cathode during overvoltage |
| 2 (A) | Anode | Ground reference terminal - must be routed to low-impedance chassis or power ground for effective clamping |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive use including temperature cycling, humidity, and mechanical shock per discrete semiconductor standard |
| 1 mm package height | Enables ultra-thin module designs (e.g., ADAS ECUs, infotainment head units) without compromising surge rating |
| Low Rth(j-sp) = 18 K/W | Direct thermal path from junction to solder point allows >90% of 400 W pulse energy to dissipate into PCB copper |
| 0.1 μA IRM at VRWM | Reduces quiescent current drain in always-on vehicle networks (e.g., CAN FD wake-up lines, LIN bus) |
| ±30 kV ESD immunity | Eliminates need for secondary ESD protection stages in front-end power inputs and sensor interfaces |
Applications
| Automotive Power Rail Protection | Industrial DC Power Input |
|---|---|
|
Use Scenario: 12 V/24 V battery-fed control modules exposed to load dump (ISO 7637-2 Pulse 5a) and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamping element placed between input rail and ground, triggered within nanoseconds of overvoltage onset. Use Value: Limits voltage to ≤66.3 V during 87.1 A surges, protecting downstream PMICs and microcontrollers rated for 60 V absolute maximum. |
Use Scenario: 48 V telecom/data center power supplies subject to lightning-induced surges on AC-DC rectified outputs. IC Role / Device Role / Timing Role: Primary overvoltage clamp on secondary-side DC bus, absorbing IEC 61000-4-5 Level 4 (4 kV) common-mode transients. Use Value: Withstands 400 W pulses without degradation, maintaining system uptime where replacement requires field service. |
| Automotive Sensor Interface Protection | On-Board Charger (OBC) Control Circuitry |
|
Use Scenario: LIN/CAN physical layer inputs in body control modules subjected to ESD events during connector mating/unmating. IC Role / Device Role / Timing Role: Low-leakage (0.1 μA) TVS placed directly at connector entry point, shunting ESD current before signal conditioning ICs. Use Value: ±30 kV contact discharge immunity prevents latch-up or damage to transceivers while adding <1 pF capacitance to signal path. |
Use Scenario: Gate drive and feedback sensing circuits in 6.6 kW OBCs operating in EV charging stations with noisy grid interfaces. IC Role / Device Role / Timing Role: Secondary-side transient suppressor on isolated feedback rails and MCU supply domains, coordinated with primary-side MOVs. Use Value: Enables compact layout with 1 mm height constraint while meeting ISO 16750-2 electrical environment Class IV requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ54A-Q | 300 W PPPM, SMA package (2.4 mm height), VCL = 87.1 V at 34.4 A | Lower power rating and higher clamping voltage reduce protection margin in 400 W surge environments | Select only if board height >2.4 mm is acceptable and peak surge energy is confirmed ≤300 W |
| TPSMD54A | 5.0 mm × 6.2 mm DO-214AB package, 500 W PPPM, VCL = 87.1 V at 57.4 A | Larger footprint increases PCB area cost but improves thermal margin for repetitive surges | Prefer for industrial power supplies with frequent surge exposure; avoid in space-constrained automotive modules |
Compared with SMAJ54A-Q and TPSMD54A, PTVS54VS1UR-QX uniquely balances 400 W surge capability, 1 mm height, AEC-Q101 qualification, and 0.1 μA leakage-making it optimal for next-gen automotive ECUs where volume, reliability, and low standby loss are co-prioritized.
Availability
PTVS54VS1UR-QX is available at Aetrix Electronics and suitable for automotive power rail protection, industrial DC input hardening, and on-board charger control circuitry requiring stable component supply across multi-year production cycles.
Supply support for PTVS54VS1UR-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 focused on essential efficiency technologies, delivering high-performance, reliable discrete and logic devices for automotive, industrial, and consumer markets.
The PTVSxS1UR-Q series targets AEC-Q101-compliant transient protection in space- and thermally constrained automotive subsystems, emphasizing low-profile packaging, low leakage, and high surge resilience for modern 12 V–48 V architectures.
FAQ
What is the maximum clamping voltage of PTVS54VS1UR-QX at its rated peak pulse current?
The maximum clamping voltage (VCL) is 66.3 V at the rated peak pulse current (IPPM) of 87.1 A, measured under IEC 61643-321 10/1000 μs waveform conditions. This value ensures protected downstream components see no more than 66.3 V during worst-case surge events, aligning with 60 V-rated ICs' absolute maximum ratings.
How does the SOD123W package enhance thermal performance compared to standard SOD-123?
The SOD123W (CFP3) package features an extended cathode pad and optimized internal thermal path, achieving Rth(j-sp) = 18 K/W-nearly 4× better than standard SOD-123's typical ~70 K/W. This allows >90% of 400 W pulse energy to transfer directly to the PCB copper, preventing junction overheating during repeated transients.
Is PTVS54VS1UR-QX suitable for bidirectional transient protection?
No-it is a unidirectional TVS diode, intended only for DC circuits with defined polarity. Its cathode (pin 1) must connect to the protected line and anode (pin 2) to ground. For AC or reversible polarity applications, a bidirectional variant like PTVS54VS1UR-S (not offered in Q-series) or paired unidirectional devices would be required.
What AEC-Q101 test conditions validate PTVS54VS1UR-QX for automotive use?
It passes AEC-Q101 stress tests including high-temperature operating life (1000 h at 150 °C), temperature cycling (−55 °C to +150 °C, 1000 cycles), and unbiased highly accelerated stress test (UHAST, 96 h at 130 °C/85% RH). These confirm reliability in under-hood environments with thermal shock and humidity exposure.
PTVS54VS1UR-QX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Package/Case:
- SOD-123W
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 54V (Max)
- Voltage - Breakdown (Min):
- 60V
- Voltage - Clamping (Max) @ Ipp:
- 87.1V
- Current - Peak Pulse (10/1000µs):
- 4.6A
- 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
PTVS54VS1UR-QX FAQ
1.How can I place an order for PTVS54VS1UR-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for PTVS54VS1UR-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 PTVS54VS1UR-QX reliable?
The price and inventory of PTVS54VS1UR-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PTVS54VS1UR-QX is usually 5 days.
3.What payment methods are accepted for PTVS54VS1UR-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PTVS54VS1UR-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PTVS54VS1UR-QX?
PTVS54VS1UR-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PTVS54VS1UR-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 PTVS54VS1UR-QX?
For technical support, including PTVS54VS1UR-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PTVS54VS1UR-QX requirements.
6.How does Aetrix verify that PTVS54VS1UR-QX is sourced from the original manufacturer or authorized distributors?
All PTVS54VS1UR-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 PTVS54VS1UR-QX meets industry standards.
7.What is the process for return or replacement of PTVS54VS1UR-QX?
All PTVS54VS1UR-QX units undergo pre-shipment inspection (PSI). If there is an issue with PTVS54VS1UR-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 PTVS54VS1UR-QX part is unused and in its original packaging.
Return procedure for PTVS54VS1UR-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PTVS54VS1UR-QX Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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onsemi
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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
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D12V0L1B2LP-7B
Diodes Incorporated
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PESD2V0Y1BSFYL
Nexperia USA Inc.
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DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
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Diodes Incorporated
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