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Nexperia USA Inc. PTVS40VS1UTR-QX
- Part No.:
- PTVS40VS1UTR-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- SOD-123W
- Datasheet:
-
PTVS40VS1UTR-QX.pdf
- Description:
- PTVS40VS1UTR-Q/SOD123W/SOD2
- Quantity:
- Payment:
- Shipping:
Inventory:2,676
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Product details
Overview
PTVS40VS1UTR-Q from Nexperia is a unidirectional 400 W Transient Voltage Suppressor (TVS) in SOD123W (CFP3) package, designed for high-temperature transient overvoltage protection in automotive power rails. It features VRWM = 40 V, VBR(min) = 44.4 V, VCL = 64.5 V at IPPM = 6.2 A (10/1000 µs), and operates up to Tj = 185 °C.
For engineers reviewing the PTVS40VS1UTR-Q datasheet, PTVS40VS1UTR-Q pinout, PTVS40VS1UTR-Q application, or PTVS40VS1UTR-Q equivalent, this device is selected for robust ESD/ISO 7637-2 surge suppression in engine control units, battery management systems, and 12 V/24 V automotive subsystems requiring AEC-Q101 qualification and low-profile mounting.
Technical Context
This unidirectional TVS diode clamps transients using avalanche breakdown, with a typical breakdown voltage of 46.8 V and clamping voltage of 64.5 V under 10/1000 µs waveform. Its thermal resistance Rth(j-sp) is 18 K/W, enabling reliable operation at junction temperatures up to 185 °C.
The device exhibits ultra-low reverse leakage (IRM ≤ 0.1 µA at VRWM) and a positive temperature coefficient (SZ = +0.5 mV/K), ensuring stable clamping performance across automotive ambient ranges (−55 °C to +185 °C) and maintaining predictable VBR drift under thermal stress.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 400 W (IEC 61643-321, 10/1000 µs); sustains repeated load dump surges without degradation |
| Reverse Standoff Voltage | VRWM = 40 V; blocks normal 12 V/24 V rail voltages while remaining fully off |
| Breakdown Voltage | VBR = 44.4–49.1 V (min–max at IR = 1 mA); triggers clamping before downstream IC damage thresholds |
| Clamping Voltage | VCL = 64.5 V at IPPM = 6.2 A; limits transient voltage seen by protected circuitry |
| Reverse Leakage | IRM ≤ 0.1 µA at VRWM; negligible standby current impact on low-power automotive modules |
| Junction Temperature | Tj(max) = 185 °C; supports under-hood placement near engines or power converters |
| ESD Rating | ±30 kV (IEC 61000-4-2 contact/air); protects against human-body and system-level electrostatic events |
Pinout & Package
Package: SOD123W (CFP3), surface-mount plastic package; dimensions 2.6 mm × 1.7 mm × 1.0 mm; marking bar indicates cathode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Connected to protected line (e.g., 12 V rail); absorbs positive transients toward ground |
| 2 (A) | Anode | Connected to system ground; completes clamping path during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive use per stress test standard; eliminates qualification overhead for Tier 1 designs |
| 1 mm profile height | Enables PCB space optimization in dense ECUs and ADAS modules where Z-axis clearance is constrained |
| 185 °C junction rating | Supports direct placement near high-power MOSFETs or DC-DC converters without derating |
| Low Rth(j-sp) = 18 K/W | Minimizes thermal impedance to solder point, improving pulse energy dissipation reliability |
| 30 kV ESD immunity | Meets stringent OEM requirements for infotainment and body control module interfaces |
Applications
| Engine Control Unit (ECU) Power Input | Automotive Battery Management System (BMS) |
|---|---|
Use Scenario: Protects 12 V supply input of diesel/gasoline ECU against ISO 7637-2 pulse 5a (load dump) and pulse 1 (inductive switch-off). IC Role / Device Role: Unidirectional TVS placed between battery rail and primary DC-DC converter input. Use Value: Clamps transients to ≤64.5 V, preventing damage to 65 V-rated input capacitors and controller ICs. |
Use Scenario: Shields BMS front-end monitoring ICs from battery terminal transients during jump-start or alternator regulation faults. IC Role / Device Role: Primary overvoltage clamp on main battery sense line and auxiliary 12 V supply rail. Use Value: Maintains <0.1 µA leakage at 40 V standoff, avoiding measurement error in high-impedance voltage dividers. |
| ADAS Camera Module Power Rail | Electric Power Steering (EPS) Motor Driver |
Use Scenario: Guards 5 V/3.3 V camera sensor power domain against coupled noise from nearby radar or motor drivers. IC Role / Device Role: Secondary-stage TVS after bulk filtering, placed adjacent to image sensor PMIC input. Use Value: 1 mm height enables co-location with compact camera PCBs; 185 °C rating allows mounting near lens heater traces. |
Use Scenario: Suppresses switching spikes generated by H-bridge MOSFETs during EPS motor commutation. IC Role / Device Role: Rail-to-ground TVS on 12 V logic supply feeding gate driver ICs and MCU. Use Value: 400 W peak power handles repetitive 10/1000 µs pulses from PWM-driven motors without thermal runaway. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ40A-Q | Lower PPPM = 400 W but only rated to Tj = 150 °C; VRWM = 40 V, VCL = 64.5 V (same), but Rth(j-a) = 95 K/W vs. 70 K/W | Not AEC-Q101 qualified; limited to under-dash non-critical modules | Select when cost sensitivity outweighs under-hood thermal margin and automotive qualification needs |
| TPSMD40A | Same VRWM/VCL, but higher IPPM = 6.5 A; Tj(max) = 175 °C; AEC-Q101 qualified; Rth(j-sp) = 20 K/W | Compatible footprint but slightly larger body (2.8 mm × 1.8 mm); requires layout adjustment | Choose for enhanced pulse current margin in high-noise EPS or starter-generator circuits |
Compared with SMAJ40A-Q and TPSMD40A, PTVS40VS1UTR-Q delivers superior thermal resilience (185 °C vs. 150/175 °C), lower profile (1.0 mm vs. 2.2/2.3 mm), and tighter thermal coupling to PCB (Rth(j-sp) = 18 K/W), making it optimal for space-constrained, high-temperature automotive nodes.
Availability
PTVS40VS1UTR-Q is available at Aetrix Electronics and suitable for automotive power supply protection, battery management systems, and high-temperature industrial control requiring stable component supply and full AEC-Q101 traceability.
Supply support for PTVS40VS1UTR-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 high-volume, high-reliability discrete and logic devices, with leadership in automotive-grade components and advanced packaging.
The PTVSxS1UTR-Q series belongs to Nexperia's AEC-Q101-qualified TVS portfolio, engineered specifically for robust transient suppression in harsh automotive environments-especially under-hood and battery-connected systems demanding extended temperature operation.
FAQ
What is the maximum clamping voltage of PTVS40VS1UTR-Q under standard test conditions?
The clamping voltage VCL is 64.5 V at a peak pulse current IPPM of 6.2 A, measured per IEC 61643-321 using a 10/1000 µs waveform. This value is guaranteed across the full operating temperature range (−55 °C to +185 °C) and ensures protected ICs remain below their absolute maximum ratings during surge events.
Does PTVS40VS1UTR-Q require derating at elevated ambient temperatures?
Yes-its rated peak pulse power decreases linearly above 25 °C, with relative PPPM dropping to ~70% at 125 °C and ~50% at 150 °C (per Fig. 2). However, its 185 °C junction limit and low Rth(j-sp) allow continued operation in high-ambient zones when PCB copper area and thermal vias are optimized per Nexperia's CFP3 footprint guidelines.
Can PTVS40VS1UTR-Q be used in bidirectional configurations?
No-it is strictly unidirectional. The internal structure connects anode to ground and cathode to the protected line. For bidirectional protection (e.g., data lines or AC inputs), two devices must be back-to-back or a dedicated bidirectional TVS like PTVS40VS1UTR-Q's counterpart PTVS40VS1UTR-Q-BI must be selected, which is not part of this series.
How does the marking code 'CV' correspond to PTVS40VS1UTR-Q on the device body?
The marking code 'CV' is laser-etched on the top surface of the SOD123W package and uniquely identifies PTVS40VS1UTR-Q per Nexperia's Table 4. The bar adjacent to the marking denotes the cathode (Pin 1), enabling rapid visual polarity verification during manual assembly or AOI inspection.
PTVS40VS1UTR-QX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Package/Case:
- SOD-123W
- Series:
- PTVSxS1UTR
- 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 ~ 185°C (TA)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOD-123W
PTVS40VS1UTR-QX FAQ
1.How can I place an order for PTVS40VS1UTR-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for PTVS40VS1UTR-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 PTVS40VS1UTR-QX reliable?
The price and inventory of PTVS40VS1UTR-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PTVS40VS1UTR-QX is usually 5 days.
3.What payment methods are accepted for PTVS40VS1UTR-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PTVS40VS1UTR-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PTVS40VS1UTR-QX?
PTVS40VS1UTR-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PTVS40VS1UTR-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 PTVS40VS1UTR-QX?
For technical support, including PTVS40VS1UTR-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PTVS40VS1UTR-QX requirements.
6.How does Aetrix verify that PTVS40VS1UTR-QX is sourced from the original manufacturer or authorized distributors?
All PTVS40VS1UTR-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 PTVS40VS1UTR-QX meets industry standards.
7.What is the process for return or replacement of PTVS40VS1UTR-QX?
All PTVS40VS1UTR-QX units undergo pre-shipment inspection (PSI). If there is an issue with PTVS40VS1UTR-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 PTVS40VS1UTR-QX part is unused and in its original packaging.
Return procedure for PTVS40VS1UTR-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PTVS40VS1UTR-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.
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DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
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D5V0L1B2WS-7
Diodes Incorporated
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