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Nexperia USA Inc. PTVS40VP1UTP-QX
- Part No.:
- PTVS40VP1UTP-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- SOD-128
- Datasheet:
-
PTVS40VP1UTP-QX.pdf
- Description:
- PTVS40VP1UTP-Q/SOD128/FLATPOWE
- Quantity:
- Payment:
- Shipping:
Inventory:4,495
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Product details
Overview
PTVS40VP1UTP-QX from Nexperia is a unidirectional 600 W Transient Voltage Suppressor (TVS) in SOD128 (CFP5) 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 = 9.3 A (10/1000 µs), and operates up to Tj = 185 °C.
For engineers reviewing the PTVS40VP1UTP-QX datasheet, PTVS40VP1UTP-QX pinout, PTVS40VP1UTP-QX application, or PTVS40VP1UTP-QX 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 where thermal stability and AEC-Q101 compliance are mandatory.
Technical Context
This unidirectional TVS diode clamps transients using avalanche breakdown in silicon PN junction. Its 40 V reverse standoff voltage enables protection of 36–42 V nominal circuits, with clamping voltage tightly specified at 64.5 V (typ) under 9.3 A peak pulse current per IEC 61643-321 (10/1000 µs).
Thermal design is enabled by Rth(j-sp) = 12 K/W to solder point and rated junction temperature up to 185 °C. The device meets AEC-Q101 stress test qualification and delivers 30 kV IEC 61000-4-2 contact discharge ESD immunity - critical for under-hood electronics exposed to harsh thermal and electrical environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power | 600 W - sustains 10/1000 µs surges without failure in automotive load-dump or ISO 7637-2 Pulse 5a events |
| Reverse Standoff Voltage | VRWM = 40 V - blocks normal 36–40 V system operation while remaining fully inactive below clamping threshold |
| Clamping Voltage | VCL = 64.5 V @ IPPM = 9.3 A - limits downstream IC voltage to safe level during 10/1000 µs transients |
| Breakdown Voltage | VBR(min) = 44.4 V @ IR = 1 mA - ensures reliable turn-on before damaging overvoltage reaches protected circuitry |
| Junction Temperature | Tj(max) = 185 °C - supports placement near high-power components in engine compartments or inverters |
| ESD Rating | ±30 kV contact discharge (IEC 61000-4-2) - eliminates need for additional ESD stages in CAN/LIN bus nodes |
| Package | SOD128 (CFP5) - 3.8 mm × 2.6 mm × 1.0 mm low-profile SMD footprint compatible with automated reflow assembly |
Pinout & Package
SOD128 (CFP5) plastic surface-mounted package with 2 terminals, 4 mm pitch, and 1 mm maximum height. Cathode identified by marking bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to protected circuit's positive rail; conducts avalanche current during overvoltage event |
| 2 | Anode (A) | Connected to ground or low-impedance return path; completes clamping loop during transient |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive use including temperature cycling, HTRB, and ESD stress per discrete semiconductor standard |
| High-temperature operation | Rated for continuous operation at Tj ≤ 185 °C - suitable for under-hood ECUs and traction inverter auxiliary supplies |
| Low-profile SMD package | 1.0 mm max height enables placement in space-constrained modules such as ADAS camera housings or motor controllers |
| Low leakage current | IRM ≤ 0.001 µA @ VRWM - prevents parasitic drain in always-on battery-connected circuits |
| Stable clamping performance | VCL variation < ±5 % across -55 °C to +150 °C ambient - ensures consistent protection in extreme climates |
Applications
| Engine Control Unit (ECU) Power Input | Automotive Battery Management System (BMS) |
|---|---|
|
Use Scenario: Protects 12 V supply input of diesel/gasoline ECU against load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and DC-DC input, clamping within 1 ns to limit voltage to ≤65 V. Use Value: Prevents damage to MCU, CAN transceivers, and analog front-ends during 120 V/100 ms transients without derating at 150 °C ambient. |
Use Scenario: Shields BMS monitoring ICs and cell-balancing FET drivers from jump-start surges and grounding faults. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main 12 V auxiliary supply feeding isolated ADCs and digital isolators. Use Value: Maintains <1 µA leakage at 40 V to avoid self-discharge in parked vehicle mode while surviving 30 kV ESD events on service ports. |
| Body Control Module (BCM) LIN Bus Protection | Electric Power Steering (EPS) Motor Driver Supply |
|
Use Scenario: Guards LIN transceiver VCC pin against coupled transients from adjacent high-current loads (e.g., window lifters). IC Role / Device Role / Timing Role: Local TVS mounted directly at transceiver power pin, minimizing trace inductance for sub-ns response. Use Value: Clamps to 64.5 V before LIN PHY IC absolute maximum rating (65 V) is exceeded, enabling single-stage protection. |
Use Scenario: Safeguards gate driver IC supply in 48 V EPS motor control unit exposed to inductive kickback and battery reversal. IC Role / Device Role / Timing Role: High-energy TVS on pre-regulator input, absorbing >500 mJ pulses from MOSFET switching noise. Use Value: Delivers 600 W peak power handling with Rth(j-sp) = 12 K/W, enabling direct mounting to copper pour for thermal reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ40A-Q | Same VRWM (40 V), but lower PPPM = 400 W; VCL = 64.5 V @ 6.2 A; SMC package (2.5 mm height) | Lower energy handling limits suitability to non-load-dump scenarios like ESD-only zones | Select when board height >1 mm is acceptable and peak surge energy is <400 W |
| Vishay VMM40MT | Higher VRWM = 43 V; same SOD128 footprint; VCL = 69 V @ 8.7 A; Tj(max) = 175 °C | Marginally higher clamping voltage reduces protection margin for 40 V-rated downstream ICs | Select only if system nominal voltage is ≥42 V and thermal budget allows 10 °C lower max junction temperature |
Compared with Littelfuse SMAJ40A-Q and Vishay VMM40MT, PTVS40VP1UTP-QX uniquely combines 600 W surge rating, 185 °C junction capability, and 1 mm profile in SOD128 - making it the only option qualified for high-energy, high-temperature automotive power rail protection without package height compromise.
Availability
PTVS40VP1UTP-QX is available at Aetrix Electronics and suitable for automotive engine control units, battery management systems, and electric power steering modules requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for PTVS40VP1UTP-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 high-volume, high-reliability logic, discrete, and MOSFET solutions, with deep specialization in automotive-qualified components.
The PTVSxP1UTP-Q series belongs to Nexperia's AEC-Q101-qualified TVS portfolio, engineered specifically for robust transient suppression in automotive power domains where thermal resilience and surge energy absorption are non-negotiable.
FAQ
What is the maximum clamping voltage of PTVS40VP1UTP-QX under standardized surge conditions?
The clamping voltage VCL is 64.5 V (typical) at IPPM = 9.3 A under IEC 61643-321 10/1000 µs waveform. This value is measured at Tj = 25 °C and remains within ±5 % across -55 °C to +150 °C ambient, ensuring predictable protection behavior in real-world under-hood environments.
Does PTVS40VP1UTP-QX require external heat sinking for automotive under-hood use?
No external heatsink is required. With Rth(j-sp) = 12 K/W to solder point and Rth(j-a) = 60 K/W on ceramic PCB, the device safely dissipates surge energy at Tj ≤ 185 °C when mounted per Nexperia's CFP5 reflow footprint (Fig. 7). Standard FR4 layouts with 1 cm² cathode pad achieve Rth(j-a) = 120 K/W - sufficient for intermittent surge duty.
How does the marking code 'CY' relate to PTVS40VP1UTP-QX?
'CY' is the top-side laser marking for PTVS40VP1UTP-QX per Table 4 of the datasheet. It appears adjacent to the cathode bar on the SOD128 package body and enables rapid visual identification during assembly and field repair - distinct from other variants like PTVS36VP1UTP-Q (CW) or PTVS43VP1UTP-Q (CZ).
Can PTVS40VP1UTP-QX replace bidirectional TVS diodes in CAN bus protection?
No. As a unidirectional device, PTVS40VP1UTP-QX only protects against positive transients on the line it's installed across. CAN bus requires bidirectional clamping (e.g., PTVS3V3S1UR, PTVS5V0S1UR) to suppress both positive and negative voltage excursions relative to common-mode ground. Using this part on CAN would leave negative surges unclamped.
PTVS40VP1UTP-QX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Package/Case:
- SOD-128
- Series:
- PTVSxP1UTP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 40V
- Voltage - Breakdown (Min):
- 44.4V
- Voltage - Clamping (Max) @ Ipp:
- 64.5V
- Current - Peak Pulse (10/1000µs):
- 9.3A
- Power - Peak Pulse:
- 600W
- 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-128/CFP5
PTVS40VP1UTP-QX FAQ
1.How can I place an order for PTVS40VP1UTP-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for PTVS40VP1UTP-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 PTVS40VP1UTP-QX reliable?
The price and inventory of PTVS40VP1UTP-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PTVS40VP1UTP-QX is usually 5 days.
3.What payment methods are accepted for PTVS40VP1UTP-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PTVS40VP1UTP-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PTVS40VP1UTP-QX?
PTVS40VP1UTP-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PTVS40VP1UTP-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 PTVS40VP1UTP-QX?
For technical support, including PTVS40VP1UTP-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PTVS40VP1UTP-QX requirements.
6.How does Aetrix verify that PTVS40VP1UTP-QX is sourced from the original manufacturer or authorized distributors?
All PTVS40VP1UTP-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 PTVS40VP1UTP-QX meets industry standards.
7.What is the process for return or replacement of PTVS40VP1UTP-QX?
All PTVS40VP1UTP-QX units undergo pre-shipment inspection (PSI). If there is an issue with PTVS40VP1UTP-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 PTVS40VP1UTP-QX part is unused and in its original packaging.
Return procedure for PTVS40VP1UTP-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PTVS40VP1UTP-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.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
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D5V0L1B2WS-7
Diodes Incorporated
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