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Nexperia USA Inc. PTVS45VP1UTP-QX
- Part No.:
- PTVS45VP1UTP-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- SOD-128
- Datasheet:
-
PTVS45VP1UTP-QX.pdf
- Description:
- PTVS45VP1UTP-Q/SOD128/FLATPOWE
- Quantity:
- Payment:
- Shipping:
Inventory:9,612
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Product details
Overview
PTVS45VP1UTP-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. Confirmed parameters: VRWM = 45 V, VCL = 72.7 V at IPPM = 8.3 A (10/1000 µs), Tj ≤ 185 °C, IRM ≤ 0.001 µA, and AEC-Q101 qualified.
For engineers reviewing the PTVS45VP1UTP-QX datasheet, PTVS45VP1UTP-QX pinout, PTVS45VP1UTP-QX application, or PTVS45VP1UTP-QX equivalent, key selection criteria include clamping voltage under 73 V at 8.3 A surge, 185 °C junction temperature rating, SOD128 footprint compatibility, and AEC-Q101 qualification for under-hood automotive use.
Technical Context
This unidirectional TVS diode operates as a shunt protector: it remains high-impedance below 45 V reverse standoff voltage and avalanches sharply above its 50–55.3 V breakdown range to clamp transients. Its low 1 mm profile and thermal resistance of 12 K/W (junction-to-solder point) support dense PCB layouts with direct thermal path to copper.
Rated per IEC 61643-321 (10/1000 µs waveform), it delivers stable 600 W peak pulse power up to 150 °C ambient, with derating to ~50% at 185 °C junction temperature. ESD robustness includes 30 kV contact/air discharge (IEC 61000-4-2) and 8 kV HBM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 45 V - Maximum continuous reverse operating voltage before leakage exceeds 0.001 µA |
| VBR (min/typ/max) | 50.0 / 52.65 / 55.3 V - Breakdown occurs within this range at 1 mA, defining reliable turn-on threshold |
| VCL @ IPPM | 72.7 V at 8.3 A - Clamped voltage during 10/1000 µs surge, limiting downstream IC stress |
| PPPM | 600 W - Peak pulse power handling per IEC 61643-321, enabling robust ISO 7637-2 pulse suppression |
| Tj max | 185 °C - Enables placement near hot components (e.g., engine control units, DC-DC converters) |
| AEC-Q101 | Qualified - Meets stress test requirements for discrete semiconductors in automotive applications |
| Rth(j-sp) | 12 K/W - Low thermal resistance from junction to solder point enables effective heat dissipation via cathode pad |
Pinout & Package
Package: SOD128 (CFP5) - surface-mounted, 2-terminal plastic package; 3.8 mm × 2.6 mm × 1.0 mm body; 4 mm lead pitch; marking bar denotes cathode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Connected to protected line (e.g., 45 V rail); avalanche conduction occurs from anode to cathode during overvoltage |
| 2 (A) | Anode | Connected to ground reference; forms low-impedance shunt path when VAK exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| High-temperature operation | Rated up to 185 °C junction temperature - supports under-hood automotive placement without derating penalties |
| Low-profile SMD package | 1.0 mm height - enables compact layout in space-constrained ECUs and ADAS modules |
| Automotive qualification | AEC-Q101 compliant - validated for reliability in automotive power supply and signal line protection |
| Ultra-low leakage | IRM ≤ 0.001 µA at VRWM - minimizes standby current drain in always-on vehicle systems |
| ESD-hardened design | 30 kV IEC 61000-4-2 contact/air discharge - protects against human-body and system-level ESD events |
Applications
| Engine Control Unit (ECU) Power Rail Protection | Automotive Infotainment Power Input |
|---|---|
Use Scenario: Protects 45 V nominal battery-supplied microcontroller power input against load dump and alternator transients. IC Role / Device Role: Shunt TVS placed between VIN and GND, clamping surges to ≤72.7 V to prevent damage to LDOs and MCU VCC pins. Use Value: Maintains system uptime during ISO 7637-2 Pulse 5a (load dump) with <1 µA leakage preserving battery life in sleep mode. |
Use Scenario: Safeguards USB-C PD and display power inputs in head units exposed to conducted noise from adjacent RF modules. IC Role / Device Role: Unidirectional clamp on 45 V auxiliary rail, suppressing fast transients (<100 ns) while remaining transparent during normal operation. Use Value: 12 K/W Rth(j-sp) allows direct thermal coupling to ground plane, sustaining repeated 600 W pulses without thermal runaway. |
| Industrial Motor Drive DC Bus | EV Onboard Charger (OBC) Auxiliary Supply |
Use Scenario: Shields 45 V isolated gate driver supplies from switching-induced voltage spikes in 48 V BLDC inverters. IC Role / Device Role: Transient suppressor across secondary-side bias rail, triggered only during >50 V overvoltage events. Use Value: 52.65 V typical VBR ensures precise turn-on margin above 45 V nominal, avoiding false triggering during ripple. |
Use Scenario: Protects 45 V auxiliary power for OBC control logic against CAN bus coupling and high-voltage isolation barrier leakage. IC Role / Device Role: High-reliability TVS on isolated 45 V output of flyback converter supplying MCU and gate drivers. Use Value: AEC-Q101 qualification and 185 °C Tj rating ensure uninterrupted operation in thermally demanding OBC enclosures. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ45A-Q | Lower PPPM (400 W), higher VCL (73.0 V at 6.9 A), same SOD-123 package but not AEC-Q101 qualified | Limited to non-automotive industrial use due to missing AEC-Q101; less robust for repeated load dump events | Select only if cost sensitivity outweighs automotive qualification and 600 W surge margin |
| TPSMA6L45A | Same 45 V VRWM, lower VCL (70.1 V at 8.6 A), 600 W rating, AEC-Q101 qualified, but larger SMA package (2.5 mm height) | Acceptable for chassis-mounted modules where 1 mm height is not critical; higher thermal mass but less board-space efficient | Choose when thermal cycling reliability is prioritized over ultra-low profile, and board height budget allows ≥2.5 mm |
Compared with SMAJ45A-Q and TPSMA6L45A, PTVS45VP1UTP-QX uniquely combines AEC-Q101 qualification, 1 mm profile, and 600 W capability in SOD128-making it optimal for space-constrained, high-reliability automotive power rails where thermal and mechanical constraints prohibit larger packages.
Availability
PTVS45VP1UTP-QX is available at Aetrix Electronics and suitable for automotive ECU power protection, EV onboard charger auxiliary supplies, and industrial motor drive DC bus monitoring requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for PTVS45VP1UTP-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-enhancing components, delivering high-performance, high-reliability diodes, MOSFETs, and analog ICs for automotive, industrial, and consumer markets.
The PTVSxP1UTP-Q series belongs to Nexperia's automotive-grade TVS portfolio, engineered specifically for high-temperature transient suppression in 12 V/48 V vehicle architectures-prioritizing AEC-Q101 compliance, minimal leakage, and ultra-low profile for next-generation ECU miniaturization.
FAQ
What is the maximum clamping voltage of PTVS45VP1UTP-QX under standard test conditions?
The clamping voltage VCL is 72.7 V at IPPM = 8.3 A using the 10/1000 µs waveform per IEC 61643-321. This value is measured at Tj = 25 °C and defines the upper voltage limit imposed on protected circuitry during a standardized surge event.
Does PTVS45VP1UTP-QX support bidirectional transient suppression?
No. PTVS45VP1UTP-QX is a unidirectional TVS diode, configured as a single PN junction with cathode (pin 1) and anode (pin 2). It conducts only during positive transients on the cathode relative to anode and does not protect against reverse-polarity events.
How does the 185 °C junction temperature rating impact PCB layout?
The 185 °C Tj rating permits placement near heat sources like power inductors or MOSFETs. To realize this, the cathode pad must be connected to ≥1 cm² of copper (per datasheet thermal condition [2]) to maintain Rth(j-a) ≤ 120 K/W and avoid exceeding Tj limits under sustained surge duty cycles.
Is the SOD128 footprint compatible with automated optical inspection (AOI) and reflow processes?
Yes. The CFP5 (SOD128) outline complies with IPC-7351B standards, and Nexperia provides verified reflow soldering footprints (Fig. 7) with 3.4 mm × 2.1 mm solder lands and 1.2 mm spacing. Its flat, symmetrical geometry supports high-yield AOI detection of tombstoning and solder bridging.
PTVS45VP1UTP-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):
- 45V (Max)
- Voltage - Breakdown (Min):
- 50V
- Voltage - Clamping (Max) @ Ipp:
- 72.7V
- Current - Peak Pulse (10/1000µs):
- 8.3A
- 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
PTVS45VP1UTP-QX FAQ
1.How can I place an order for PTVS45VP1UTP-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for PTVS45VP1UTP-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 PTVS45VP1UTP-QX reliable?
The price and inventory of PTVS45VP1UTP-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PTVS45VP1UTP-QX is usually 5 days.
3.What payment methods are accepted for PTVS45VP1UTP-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PTVS45VP1UTP-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PTVS45VP1UTP-QX?
PTVS45VP1UTP-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PTVS45VP1UTP-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 PTVS45VP1UTP-QX?
For technical support, including PTVS45VP1UTP-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PTVS45VP1UTP-QX requirements.
6.How does Aetrix verify that PTVS45VP1UTP-QX is sourced from the original manufacturer or authorized distributors?
All PTVS45VP1UTP-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 PTVS45VP1UTP-QX meets industry standards.
7.What is the process for return or replacement of PTVS45VP1UTP-QX?
All PTVS45VP1UTP-QX units undergo pre-shipment inspection (PSI). If there is an issue with PTVS45VP1UTP-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 PTVS45VP1UTP-QX part is unused and in its original packaging.
Return procedure for PTVS45VP1UTP-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PTVS45VP1UTP-QX Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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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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