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Nexperia USA Inc. PTVS48VS1UTR-QX
- Part No.:
- PTVS48VS1UTR-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- SOD-123W
- Datasheet:
-
PTVS48VS1UTR-QX.pdf
- Description:
- PTVS48VS1UTR-Q/SOD123W/SOD2
- Quantity:
- Payment:
- Shipping:
Inventory:6,195
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Product details
Overview
PTVS48VS1UTR-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 = 48 V, VBR(min) = 53.3 V, VCL = 77.4 V at IPPM = 5.2 A (10/1000 µs), and operates up to Tj = 185 °C.
For engineers reviewing the PTVS48VS1UTR-Q datasheet, PTVS48VS1UTR-Q pinout, PTVS48VS1UTR-Q application, or PTVS48VS1UTR-Q equivalent, this device is selected for robust clamping in 48 V battery systems, AEC-Q101-qualified automotive ECUs, and industrial power supply surge protection where thermal stability and low-profile mounting are critical.
Technical Context
This TVS diode uses a planar silicon junction structure optimized for fast response (<1 ns) to ESD and lightning-induced transients per IEC 61643-321 (10/1000 µs). Its unidirectional configuration provides reverse-biased clamping only, with cathode-anode polarity defined by the marking bar.
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 sustained operation at Tamb = 185 °C when mounted per recommended footprint. ESD rating meets IEC 61000-4-2 (±30 kV contact/air) and MIL-STD-883 HBM (±8 kV).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 48 V - Maximum continuous reverse operating voltage before clamping begins; sets threshold for 48 V nominal bus protection. |
| VBR (min) | 53.3 V - Minimum breakdown voltage at 1 mA; ensures reliable turn-on above normal operating voltage with margin. |
| VCL @ IPPM | 77.4 V - Clamping voltage at 5.2 A peak pulse current; limits downstream voltage stress during surge events. |
| PPPM | 400 W - Peak pulse power handling (10/1000 µs waveform); enables suppression of high-energy transients without failure. |
| IRM | 0.001 µA - Reverse leakage at VRWM; negligible power loss and signal integrity impact in standby. |
| Tj max | 185 °C - Maximum junction temperature; supports under-hood automotive placement without derating. |
| AEC-Q101 | Qualified - Meets stress test requirements for discrete semiconductors in automotive applications. |
Pinout & Package
SOD123W (CFP3) surface-mount plastic package: 2.6 mm × 1.7 mm × 1.0 mm body height, flat leads, cathode marked by bar.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Connected to protected line (e.g., 48 V rail); clamps to ground when transient exceeds VRWM. |
| 2 | Anode (A) | Connected to system ground; completes conduction path during overvoltage event. |
Key Features
| Feature | Design Value |
|---|---|
| High-temperature operation | Rated for continuous use at junction temperatures up to 185 °C - eliminates thermal derating in engine bay modules. |
| Low-profile SMD package | 1.0 mm max height - enables compact layout in space-constrained automotive control units and DC-DC converters. |
| Automotive qualification | AEC-Q101 qualified - validated for vibration, temperature cycling, and humidity resistance required in automotive production. |
| ESD robustness | ±30 kV contact discharge (IEC 61000-4-2) - protects against human-body and assembly-line ESD events without external shielding. |
| Stable clamping performance | Temperature coefficient SZ = 0.5 mV/K - minimal VBR drift across -55 °C to +150 °C, ensuring consistent protection margin. |
Applications
| 48 V Automotive Power Distribution | On-Board Charger Input Protection |
|---|---|
Use Scenario: Transient suppression on 48 V mild-hybrid vehicle power distribution networks exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between 48 V rail and chassis ground to clamp surges within 1 ns. Use Value: Limits peak voltage to ≤77.4 V during 5.2 A transients, preventing damage to downstream DC-DC controllers and CAN transceivers. |
Use Scenario: Input-side surge protection for bidirectional on-board chargers interfacing with 400 V–800 V traction batteries and 48 V auxiliary systems. IC Role / Device Role / Timing Role: Primary clamping device on 48 V auxiliary input, coordinated with upstream MOVs and filters. Use Value: Withstands repeated 400 W pulses and maintains <0.001 µA leakage, preserving efficiency and enabling long-term reliability in high-temp charging environments. |
| Industrial 48 V PoE++ Power Sourcing | Heavy-Duty Vehicle Control Module |
Use Scenario: Surge protection in IEEE 802.3bt Type 4 (PoE++) power sourcing equipment delivering up to 90 W over Category 6A cabling. IC Role / Device Role / Timing Role: Secondary TVS stage after primary GDT/MOV, absorbing residual fast-rising transients coupled onto 48 V pairs. Use Value: Low Rth(j-sp) = 18 K/W allows direct thermal coupling to copper pour, sustaining clamping performance during multi-pulse stress testing. |
Use Scenario: Overvoltage protection in engine control units (ECUs) and transmission control modules mounted near diesel engines with high ambient temperatures. IC Role / Device Role / Timing Role: Standoff-rated TVS on microcontroller I/O and sensor supply lines, referenced to local ground plane. Use Value: AEC-Q101 qualification and 185 °C Tj rating ensure functional safety compliance without additional thermal management hardware. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ48A-Q | Lower PPPM = 400 W but rated at 25 °C only; derates to ~220 W at 125 °C; VRWM = 48 V, VCL = 77.4 V. | Not AEC-Q101 qualified; limited to industrial/commercial ambient ranges (Tamb ≤ 125 °C). | Select when cost sensitivity outweighs automotive qualification and high-temperature operation. |
| SMCJ48A-Q | Higher PPPM = 1500 W; larger DO-214AB package (7.11 mm × 6.22 mm × 2.34 mm); same VRWM/VCL specs. | Requires more PCB area and has higher thermal mass; less suitable for ultra-thin modules. | Select when surge energy exceeds 400 W capability and board space permits larger footprint. |
Compared with SMAJ48A-Q, PTVS48VS1UTR-Q delivers identical clamping performance with AEC-Q101 qualification and full 185 °C operation; compared with SMCJ48A-Q, it trades peak power headroom for 75% smaller footprint and lower profile - critical for modern automotive electronics miniaturization.
Availability
PTVS48VS1UTR-Q is available at Aetrix Electronics and suitable for automotive power distribution, on-board charger protection, and industrial 48 V PoE++ systems requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for PTVS48VS1UTR-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-enhancing components, with leadership in logic, discrete, and MOSFET technologies for automotive, industrial, and mobile markets.
The PTVSxS1UTR-Q series belongs to Nexperia's AEC-Q101-qualified TVS portfolio, engineered specifically for high-reliability transient suppression in next-generation 48 V automotive architectures and thermally demanding industrial power systems.
FAQ
What is the maximum clamping voltage of PTVS48VS1UTR-Q under standard test conditions?
The clamping voltage VCL is 77.4 V at IPPM = 5.2 A using the 10/1000 µs waveform per IEC 61643-321. This value is measured at Tj = 25 °C and represents the maximum voltage seen across the device during a standardized surge event - critical for ensuring downstream ICs remain within absolute maximum ratings.
Does PTVS48VS1UTR-Q require derating at elevated ambient temperatures?
No derating is required for junction temperature up to 185 °C, as confirmed by Nexperia's thermal characterization data. The device maintains full 400 W PPPM capability across its entire rated Tj range, unlike conventional TVS diodes that lose >50% power handling above 125 °C - enabling simplified thermal design in under-hood applications.
How is polarity identified on the PTVS48VS1UTR-Q package?
Polarity is indicated by a molded cathode bar on the top surface of the SOD123W package, aligned with Pin 1. Per Table 2, Pin 1 is the cathode (K) and Pin 2 is the anode (A); correct orientation ensures proper reverse-biased clamping behavior when installed between protected line and ground.
Can PTVS48VS1UTR-Q be used in bidirectional configurations?
No - it is strictly unidirectional. The device conducts only when cathode voltage exceeds anode voltage by ≥VBR. For bidirectional protection (e.g., data lines), two devices must be connected in series opposing configuration, or a dedicated bidirectional TVS such as PTVS48VS1UTR-Q's complementary series variant must be selected.
PTVS48VS1UTR-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):
- 48V (Max)
- Voltage - Breakdown (Min):
- 53.3V
- Voltage - Clamping (Max) @ Ipp:
- 77.4V
- Current - Peak Pulse (10/1000µs):
- 5.2A
- 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
PTVS48VS1UTR-QX FAQ
1.How can I place an order for PTVS48VS1UTR-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for PTVS48VS1UTR-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 PTVS48VS1UTR-QX reliable?
The price and inventory of PTVS48VS1UTR-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PTVS48VS1UTR-QX is usually 5 days.
3.What payment methods are accepted for PTVS48VS1UTR-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PTVS48VS1UTR-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PTVS48VS1UTR-QX?
PTVS48VS1UTR-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PTVS48VS1UTR-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 PTVS48VS1UTR-QX?
For technical support, including PTVS48VS1UTR-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PTVS48VS1UTR-QX requirements.
6.How does Aetrix verify that PTVS48VS1UTR-QX is sourced from the original manufacturer or authorized distributors?
All PTVS48VS1UTR-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 PTVS48VS1UTR-QX meets industry standards.
7.What is the process for return or replacement of PTVS48VS1UTR-QX?
All PTVS48VS1UTR-QX units undergo pre-shipment inspection (PSI). If there is an issue with PTVS48VS1UTR-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 PTVS48VS1UTR-QX part is unused and in its original packaging.
Return procedure for PTVS48VS1UTR-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PTVS48VS1UTR-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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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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Toshiba Semiconductor and Storage
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Diodes Incorporated
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