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Nexperia USA Inc. PTVS40VS1UR-QX
- Part No.:
- PTVS40VS1UR-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- SOD-123W
- Datasheet:
-
PTVS40VS1UR-QX.pdf
- Description:
- PTVS40VS1UR-Q/SOD123W/SOD2
- Quantity:
- Payment:
- Shipping:
Inventory:2,690
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Product details
Overview
PTVS40VS1UR-Q from Nexperia is a unidirectional 400 W Transient Voltage Suppressor (TVS) in SOD123W (CFP3) package, designed for automotive-grade overvoltage protection on DC power rails. It features VRWM = 40 V, VBR(min) = 44.4 V, VCL(max) = 64.5 V at IPPM = 6.2 A (10/1000 μs), and qualifies to AEC-Q101 for under-hood and infotainment power supply protection.
For engineers reviewing the PTVS40VS1UR-Q datasheet, PTVS40VS1UR-Q pinout, PTVS40VS1UR-Q application, or PTVS40VS1UR-Q equivalent, this device delivers precise clamping performance with low leakage (IRM ≤ 0.1 µA), ultra-low profile (1 mm height), and robust ESD immunity (±30 kV contact discharge) - critical for space-constrained automotive ECUs and industrial power modules.
Technical Context
This unidirectional TVS diode operates as a voltage-clamped shunt protector: it remains high-impedance below VRWM (40 V), breaks down sharply at VBR (44.4–49.1 V), and clamps transients to ≤64.5 V while absorbing up to 400 W peak pulse power per IEC 61643-321 (10/1000 μs waveform). Its cathode-anode polarity enables integration into positive-rail protection schemes without reverse-bias risk.
Thermal design is enabled by Rth(j-sp) = 18 K/W to solder point and Rth(j-a) = 70 K/W on ceramic PCB, supporting reliable operation up to Tj = 150 °C. AEC-Q101 qualification confirms endurance across -55 °C to +150 °C ambient, including 1000-cycle temperature cycling and HBM ESD tolerance ≥8 kV.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 40 V - Maximum continuous reverse operating voltage before significant leakage; sets upper limit for protected rail voltage. |
| VBR (min/max) | 44.4 V / 49.1 V - Breakdown occurs within this range at IR = 1 mA; defines turn-on threshold consistency. |
| VCL (max) | 64.5 V - Maximum clamped voltage during 6.2 A transient (10/1000 μs); determines downstream IC survivability margin. |
| PPPM | 400 W - Peak pulse power handling per IEC 61643-321; enables suppression of ISO 7637-2 Pulse 1/2a/5a surges. |
| IRM | ≤0.1 µA - Reverse leakage at VRWM; ensures minimal standby current drain in always-on automotive modules. |
| ESD Rating | ±30 kV (IEC 61000-4-2 contact) - Withstands direct ESD events without degradation; eliminates need for secondary ESD stages. |
| Tj max | 150 °C - Junction temperature limit enabling placement near heat sources (e.g., power MOSFETs, DC-DC inductors). |
Pinout & Package
SOD123W (CFP3) surface-mount plastic package: 2.6 mm × 1.7 mm × 1.0 mm body, flat lead profile, cathode marked by bar. Optimized for automated reflow assembly and high-density PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Connected to protected rail's positive side; conducts surge current to ground when voltage exceeds VBR. |
| 2 (A) | Anode | Connected to system ground; completes shunt path during transient events; polarity-critical for unidirectional operation. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive use including temperature cycling, humidity bias, and mechanical shock - no derating required in ECU designs. |
| 1 mm profile | Enables placement beneath connectors or in tight board-to-board interfaces where Z-height is constrained (e.g., ADAS camera modules). |
| Low thermal resistance | Rth(j-sp) = 18 K/W allows efficient heat transfer to PCB copper, sustaining repeated surge events without thermal runaway. |
| High ESD immunity | ±30 kV contact discharge rating eliminates need for external ESD suppressors on CAN/LIN bus lines or sensor inputs. |
| Stable leakage | IRM ≤ 0.1 µA at 40 V ensures <1 nA/cm² leakage density on 10 cm² PCB area - critical for battery-backed real-time clocks. |
Applications
| Automotive Body Control Module | Industrial PLC Power Input |
|---|---|
|
Use Scenario: Protecting 12 V supply rail in BCM against load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional shunt clamp placed between battery feed and DC-DC input, responding within nanoseconds to overvoltage events. Use Value: Clamps to ≤64.5 V during 6.2 A transients, preserving downstream buck converter ICs rated for 65 V absolute maximum. |
Use Scenario: Safeguarding 24 V DC input of programmable logic controller against field-wiring induced surges and inductive kickback. IC Role / Device Role / Timing Role: Primary overvoltage barrier upstream of input filter and protection FET, activated before crowbar circuits engage. Use Value: Absorbs 400 W pulses without degradation, enabling single-stage protection and reducing BOM count vs. multi-device solutions. |
| Automotive Infotainment Head Unit | Medical Diagnostic Equipment Power Rail |
|
Use Scenario: Securing USB-C PD negotiation lines and display power supplies against ESD and hot-swap transients. IC Role / Device Role / Timing Role: Localized rail clamp adjacent to PMIC inputs, providing sub-10 ns response to ±8 kV HBM and ±30 kV contact ESD. Use Value: Prevents latch-up in USB interface ICs by limiting voltage excursion to 64.5 V - well below 70 V damage threshold. |
Use Scenario: Shielding isolated 5 V/3.3 V auxiliary rails in portable ultrasound devices from ESD coupling via front-panel controls. IC Role / Device Role / Timing Role: Low-leakage (≤0.1 µA) TVS on always-powered rails, maintaining battery life while ensuring IEC 61000-4-2 compliance. Use Value: Enables 10-year shelf life with <1 µA total standby drain across 4x protected rails - meeting FDA Class II leakage limits. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ40A-Q | Same VRWM (40 V) but lower PPPM (400 W vs. SMAJ40A-Q's 400 W), higher VCL (69.4 V), larger SMA package (4.5 mm × 2.7 mm). | Less suitable for ultra-thin modules due to 2.2 mm height; requires larger PCB footprint. | Select when legacy SMA layout exists and thermal mass is available; avoid for new compact automotive designs. |
| TPSMD40CA | Bidirectional configuration (±40 V), same VCL (64.5 V), identical SOD123W package, but higher IRM (1 µA vs. 0.1 µA). | Acceptable for AC-coupled or floating-rail protection; unsuitable for polarity-sensitive DC rails. | Choose only if bidirectional surge risk exists (e.g., antenna ports); otherwise, PTVS40VS1UR-Q's lower leakage improves system efficiency. |
Compared with SMAJ40A-Q and TPSMD40CA, PTVS40VS1UR-Q uniquely combines AEC-Q101 qualification, 1 mm profile, and sub-0.1 µA leakage - making it optimal for next-gen automotive ECUs where space, reliability, and quiescent current are co-constrained.
Availability
PTVS40VS1UR-Q is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC power inputs, and medical diagnostic equipment requiring stable component supply with full AEC-Q101 traceability and long-term lifecycle support.
Supply support for PTVS40VS1UR-Q 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, high-reliability discrete and logic devices for automotive, industrial, and mobile markets.
The PTVSxS1UR-Q series targets automotive-grade transient protection, engineered specifically for ISO 7637-2 and IEC 61000-4-2 compliance in harsh environments - not general-purpose TVS use.
FAQ
What is the maximum clamping voltage for PTVS40VS1UR-Q under a 10/1000 μs surge?
The maximum clamping voltage (VCL) is 64.5 V at IPPM = 6.2 A, measured per IEC 61643-321. This value is guaranteed across temperature (–55 °C to 150 °C) and ensures downstream ICs with 65 V absolute maximum ratings remain within safe operating limits during standardized surge events.
Does PTVS40VS1UR-Q support bidirectional transient suppression?
No - PTVS40VS1UR-Q is strictly unidirectional. Its cathode-anode structure conducts only when the cathode is more positive than the anode by ≥VBR. For bidirectional protection (e.g., data lines), a separate part like PTVS40VS1UR-Q's bidirectional counterpart or dual-diode array is required.
How does the SOD123W package affect thermal performance compared to SMA?
The SOD123W package achieves Rth(j-sp) = 18 K/W to solder point - 3× better than typical SMA packages (~50–60 K/W) - due to its flat leads and optimized thermal pad layout. This enables higher surge repetition rates in confined spaces without exceeding Tj = 150 °C, verified per JEDEC JESD51-14.
Is PTVS40VS1UR-Q compatible with lead-free reflow profiles?
Yes - it is qualified for standard IPC/JEDEC J-STD-020D reflow profiles, including peak temperatures up to 260 °C for 30 seconds. The CFP3 outline supports both stencil-printed solder paste (0.1 mm thickness recommended) and wave soldering with defined land patterns per Nexperia's sod123w_fr and sod123w_fw footprints.
PTVS40VS1UR-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):
- 40V (Max)
- Voltage - Breakdown (Min):
- 44.4V
- Voltage - Clamping (Max) @ Ipp:
- 64.5V
- Current - Peak Pulse (10/1000µs):
- 6.2A
- 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
PTVS40VS1UR-QX FAQ
1.How can I place an order for PTVS40VS1UR-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for PTVS40VS1UR-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 PTVS40VS1UR-QX reliable?
The price and inventory of PTVS40VS1UR-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PTVS40VS1UR-QX is usually 5 days.
3.What payment methods are accepted for PTVS40VS1UR-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PTVS40VS1UR-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PTVS40VS1UR-QX?
PTVS40VS1UR-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PTVS40VS1UR-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 PTVS40VS1UR-QX?
For technical support, including PTVS40VS1UR-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PTVS40VS1UR-QX requirements.
6.How does Aetrix verify that PTVS40VS1UR-QX is sourced from the original manufacturer or authorized distributors?
All PTVS40VS1UR-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 PTVS40VS1UR-QX meets industry standards.
7.What is the process for return or replacement of PTVS40VS1UR-QX?
All PTVS40VS1UR-QX units undergo pre-shipment inspection (PSI). If there is an issue with PTVS40VS1UR-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 PTVS40VS1UR-QX part is unused and in its original packaging.
Return procedure for PTVS40VS1UR-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PTVS40VS1UR-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
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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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D5V0L1B2WS-7
Diodes Incorporated
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