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Nexperia USA Inc. PTVS51VP1UTP-QX
- Part No.:
- PTVS51VP1UTP-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- SOD-128
- Datasheet:
-
PTVS51VP1UTP-QX.pdf
- Description:
- PTVS51VP1UTP-Q/SOD128/FLATPOWE
- Quantity:
- Payment:
- Shipping:
Inventory:2,853
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Product details
Overview
PTVS51VP1UTP-Q 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 = 51 V, VBR(min) = 56.7 V, VCL = 82.4 V at IPPM = 7.3 A (10/1000 µs), and operates up to Tj = 185 °C.
For engineers reviewing the PTVS51VP1UTP-Q datasheet, PTVS51VP1UTP-Q pinout, PTVS51VP1UTP-Q application, or PTVS51VP1UTP-Q equivalent, this device is selected for robust clamping in 48 V automotive subsystems, ESD-hardened power supply inputs, and high-reliability industrial DC bus protection where thermal stability and AEC-Q101 qualification are mandatory.
Technical Context
This unidirectional TVS diode uses a planar silicon junction optimized for fast response (<1 ns) to transients per IEC 61643-321 (10/1000 µs waveform), with clamping action triggered when reverse voltage exceeds 51 V standoff level. Its low IRM = 0.001 µA at VRWM ensures minimal leakage in standby.
The device's thermal design supports sustained operation at Tamb = –55 °C to +185 °C, enabled by Rth(j-sp) = 12 K/W to solder point and junction temperature derating down to PPPM = 600 W only at Tj ≤ 25 °C - dropping to ~40% of rated power at Tj = 150 °C per Fig. 2.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (PPPM) | 600 W - sustains single 10/1000 µs surge without failure under defined PCB mounting conditions |
| Reverse Standoff Voltage (VRWM) | 51 V - maximum continuous reverse voltage before significant leakage; sets operating margin below system nominal 48 V rail |
| Breakdown Voltage (VBR) | 56.7 V (min) - guaranteed conduction onset; ensures reliable triggering above normal operating transients |
| Clamping Voltage (VCL) | 82.4 V at IPPM = 7.3 A - limits downstream voltage during surge, protecting 100 V-rated MOSFETs or controllers |
| Junction Temperature (Tj) | 185 °C max - enables placement near hot components (e.g., power converters) without derating-induced failure |
| ESD Rating | ±30 kV contact discharge (IEC 61000-4-2) - eliminates need for external ESD staging in infotainment or ADAS sensor interfaces |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD stress per discrete semiconductor standard |
Pinout & Package
SOD128 (CFP5) plastic surface-mount package: 2-terminal, 3.8 mm × 2.6 mm × 1.0 mm body, 4 mm lead pitch, cathode-marked with bar. Optimized for reflow and wave soldering per IPC-7095 guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to protected circuit's positive rail; carries full surge current during clamping; marked with bar on top surface |
| 2 | Anode (A) | Connected to ground or low-impedance return path; completes conduction loop during transient event |
Key Features
| Feature | Design Value |
|---|---|
| High-Temperature Stability | Tj ≤ 185 °C rating allows direct placement on engine control unit (ECU) PCBs without thermal shielding |
| Low Profile Height | 1.0 mm max height enables use in space-constrained modules like battery management systems (BMS) and radar ECUs |
| Automotive Qualification | AEC-Q101 qualified - meets vibration, thermal shock, and humidity resistance requirements for under-hood deployment |
| Low Leakage Current | IRM = 0.001 µA at VRWM minimizes quiescent power loss in always-on vehicle networks (e.g., CAN FD wake-up circuits) |
| Robust ESD Immunity | ±30 kV contact discharge withstand enables integration into exposed ports (OBD-II, USB-C PD input) without secondary protection |
Applications
| Engine Control Unit (ECU) Power Input | ADAS Camera Module Protection |
|---|---|
Use Scenario: 48 V supply line in gasoline/diesel ECU subjected to load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS clamps surges >51 V within <1 ns, limiting voltage seen by LDOs and microcontrollers. Use Value: Prevents latch-up or gate oxide damage in 40 V–100 V rated power management ICs during 120 V/350 ms load dump events. |
Use Scenario: FPD-Link III interface and 12 V bias rail in rear-view camera exposed to ESD and cable discharge. IC Role / Device Role / Timing Role: Fast-clamping TVS shunts ESD pulses before they reach serializer/deserializer ICs or image sensors. Use Value: Maintains signal integrity and prevents pixel corruption or reset events during ±8 kV HBM or ±30 kV contact ESD events. |
| Industrial 48 V DC Bus | On-Board Charger (OBC) Auxiliary Supply |
Use Scenario: 48 V telecom or factory automation bus subject to inductive switching spikes from solenoid drivers. IC Role / Device Role / Timing Role: Standoff-rated TVS absorbs repetitive 100–200 V spikes without degradation, leveraging high Tj capability. Use Value: Extends service life of isolated DC-DC converters and PLC I/O drivers by limiting peak voltage to <83 V. |
Use Scenario: 12 V auxiliary rail in EV on-board charger, exposed to conducted noise from SiC inverter switching. IC Role / Device Role / Timing Role: Low-leakage TVS provides steady-state protection without loading the rail during sleep mode. Use Value: Enables compliance with CISPR 25 Class 5 emissions while maintaining <1 µA total standby current budget. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ51A-Q | Lower PPPM (400 W), higher VCL (93.6 V), same VRWM (51 V), SMA package (2.5 mm height) | Not AEC-Q101 qualified; limited to industrial/commercial ambient (Tamb ≤ 150 °C) | Select only if cost sensitivity outweighs automotive qualification and thermal margin requirements |
| TPSMD51A | Same PPPM (600 W), identical VRWM/VCL specs, but no AEC-Q101 validation; Rth(j-a) = 200 K/W vs. 60 K/W for PTVS51VP1UTP-Q | Lacks documented automotive reliability data; thermal performance inferior on dense PCB layouts | Acceptable for non-safety-critical consumer power supplies where footprint and cost drive selection |
Compared with SMAJ51A-Q and TPSMD51A, PTVS51VP1UTP-Q delivers superior thermal resilience (Tj = 185 °C), lower profile (1.0 mm), and verified AEC-Q101 compliance - making it the sole choice for under-hood automotive designs requiring long-term reliability at elevated ambient temperatures.
Availability
PTVS51VP1UTP-Q is available at Aetrix Electronics and suitable for automotive ECU protection, ADAS camera interface hardening, and industrial 48 V DC bus stabilization requiring stable component supply across extended temperature ranges and multi-year production cycles.
Supply support for PTVS51VP1UTP-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 PTVSxP1UTP-Q series belongs to Nexperia's AEC-Q101-qualified TVS portfolio, engineered specifically for high-temperature transient suppression in next-generation 48 V automotive architectures and ruggedized industrial power systems.
FAQ
What is the maximum clamping voltage of PTVS51VP1UTP-Q under standard test conditions?
The clamping voltage VCL is 82.4 V at a peak pulse current IPPM of 7.3 A using the 10/1000 µs waveform per IEC 61643-321. This value is measured at Tj = 25 °C and represents the maximum voltage imposed on the protected circuit during a specified surge event.
Does PTVS51VP1UTP-Q require heatsinking for 600 W pulse handling?
No external heatsink is required. The device achieves 600 W peak pulse power rating with standard FR4 PCB mounting (single-sided copper, tin-plated, cathode pad area per Fig. 7). Its Rth(j-sp) = 12 K/W to solder point enables effective heat transfer directly into the PCB copper.
Can PTVS51VP1UTP-Q be used in bidirectional protection configurations?
No. It is a unidirectional TVS diode with anode and cathode terminals. Bidirectional protection requires either two devices in series opposition or a dedicated bidirectional part such as PTVS51VB1UTP-Q - which is not interchangeable due to different internal structure and marking.
How does the 185 °C junction rating impact layout decisions?
The 185 °C Tj rating permits placement adjacent to high-power components (e.g., gate drivers, DC-DC inductors) without thermal derating penalties. Layout should maintain ≥0.5 mm clearance to other thermally active parts and use ≥1 cm² cathode copper pour to sustain Rth(j-sp) = 12 K/W performance.
PTVS51VP1UTP-QX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Package/Case:
- SOD-128
- Series:
- PTVSxP1UP
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 51V (Max)
- Voltage - Breakdown (Min):
- 56.7V
- Voltage - Clamping (Max) @ Ipp:
- 82.4V
- Current - Peak Pulse (10/1000µs):
- 7.3A
- Power - Peak Pulse:
- 600W
- 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-128/CFP5
PTVS51VP1UTP-QX FAQ
1.How can I place an order for PTVS51VP1UTP-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for PTVS51VP1UTP-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 PTVS51VP1UTP-QX reliable?
The price and inventory of PTVS51VP1UTP-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PTVS51VP1UTP-QX is usually 5 days.
3.What payment methods are accepted for PTVS51VP1UTP-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PTVS51VP1UTP-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PTVS51VP1UTP-QX?
PTVS51VP1UTP-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PTVS51VP1UTP-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 PTVS51VP1UTP-QX?
For technical support, including PTVS51VP1UTP-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PTVS51VP1UTP-QX requirements.
6.How does Aetrix verify that PTVS51VP1UTP-QX is sourced from the original manufacturer or authorized distributors?
All PTVS51VP1UTP-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 PTVS51VP1UTP-QX meets industry standards.
7.What is the process for return or replacement of PTVS51VP1UTP-QX?
All PTVS51VP1UTP-QX units undergo pre-shipment inspection (PSI). If there is an issue with PTVS51VP1UTP-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 PTVS51VP1UTP-QX part is unused and in its original packaging.
Return procedure for PTVS51VP1UTP-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PTVS51VP1UTP-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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