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Nexperia USA Inc. PTVS24VS1UR-QX
- Part No.:
- PTVS24VS1UR-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- SOD-123W
- Datasheet:
-
PTVS24VS1UR-QX.pdf
- Description:
- PTVS24VS1UR-Q/SOD123W/SOD2
- Quantity:
- Payment:
- Shipping:
Inventory:7,407
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Product details
Overview
PTVS24VS1UR-Q from Nexperia is a unidirectional 400 W Transient Voltage Suppressor (TVS) diode in SOD123W (CFP3) package, designed for automotive-grade overvoltage clamping on DC power rails. It features VRWM = 24 V, VBR(min) = 26.7 V, VCL(max) = 38.9 V at IPPM = 10.3 A (10/1000 µs), and meets AEC-Q101 qualification for under-hood electronics protection.
For engineers reviewing the PTVS24VS1UR-Q datasheet, PTVS24VS1UR-Q pinout, PTVS24VS1UR-Q application, or PTVS24VS1UR-Q equivalent, this device is selected for robust 24 V system surge immunity where low-profile mounting, sub-1 mm height, and IEC 61643-321 compliance are critical design requirements.
Technical Context
This unidirectional TVS operates as a clamping diode with avalanche breakdown behavior, triggered when reverse voltage exceeds VRWM = 24 V. Its junction structure delivers fast response (<1 ns) to transients and sustains 400 W peak pulse power per IEC 61643-321 (10/1000 µs waveform).
Thermal performance is defined by Rth(j-a) = 220 K/W (FR4, standard footprint) and Rth(j-sp) = 18 K/W (cathode solder point), enabling reliable operation up to Tj = 150 °C. ESD robustness includes ±30 kV contact discharge (IEC 61000-4-2) and 8 kV HBM.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 24 V reverse standoff voltage - defines maximum continuous operating voltage before clamping begins |
| VBR (min) | 26.7 V breakdown voltage at IR = 1 mA - ensures reliable turn-on margin above VRWM |
| VCL (max) | 38.9 V clamping voltage at IPPM = 10.3 A - limits downstream IC stress during ISO 7637-2 Pulse 1/2a/5a events |
| PPPM | 400 W peak pulse power - supports high-energy transient suppression per IEC 61643-321 10/1000 µs waveform |
| IRM | 0.001 µA max reverse leakage at VRWM - minimizes standby current loss in battery-powered systems |
| Package | SOD123W (CFP3) - 2.6 × 1.7 × 1.0 mm surface-mount package with cathode-marked bar and 1 mm profile |
| AEC-Q101 | Qualified - certified for automotive applications including engine control units and body electronics |
Pinout & Package
SOD123W (CFP3) plastic surface-mounted package with 2 terminals, 2.6 mm × 1.7 mm × 1.0 mm body size and 1 mm maximum height. Cathode identified by marking bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Connected to protected line (e.g., 24 V rail); clamps to ground when transient exceeds VRWM |
| 2 (A) | Anode | Connected to system ground reference; completes clamping path during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| Automotive qualification | AEC-Q101 qualified - enables use in engine control modules, ADAS sensors, and infotainment power supplies without additional reliability validation |
| Low-profile mounting | 1 mm max height - allows placement beneath shields or in space-constrained PCB zones near connectors |
| High ESD immunity | ±30 kV contact discharge (IEC 61000-4-2) - protects against assembly-line and field-handling electrostatic events |
| Thermal efficiency | Rth(j-sp) = 18 K/W - enables effective heat transfer from junction to cathode solder pad, supporting sustained pulse handling |
| Stable leakage | IRM ≤ 0.001 µA at 24 V - eliminates measurable quiescent current impact in always-on vehicle networks (e.g., CAN FD wake-up lines) |
Applications
| Engine Control Unit (ECU) Power Input | Automotive Camera Module Supply Rail |
|---|---|
Use Scenario: Protection of 24 V input to diesel/gasoline ECU against load dump (ISO 7637-2 Pulse 5a) and alternator transients. IC Role / Device Role / Timing Role: Unidirectional clamping diode placed between battery feed and upstream fuse, conducting surge current to chassis ground. Use Value: Limits voltage to ≤38.9 V during 10.3 A transient, preventing damage to MCU power management ICs and CAN transceivers. |
Use Scenario: Surge suppression on 12 V–24 V supply line feeding rear-view or surround-view camera modules. IC Role / Device Role / Timing Role: Primary overvoltage clamp on camera PCB input, positioned before DC-DC converter and image sensor power domain. Use Value: Withstands repeated 400 W pulses while maintaining <0.001 µA leakage, preserving low-power sleep mode integrity. |
| Body Control Module (BCM) LIN Bus Power | Electric Power Steering (EPS) Sensor Interface |
Use Scenario: Protection of LIN transceiver VCC rail (typically derived from 12 V/24 V) against coupled noise from adjacent high-current loads. IC Role / Device Role / Timing Role: Localized TVS mounted directly at LIN IC power pin, minimizing trace inductance for sub-ns response. Use Value: Clamps fast-rising transients (<1 ns) to safe levels without affecting LIN signal integrity or timing margins. |
Use Scenario: Input protection for torque/position sensor analog supply in EPS motor control units exposed to motor commutation spikes. IC Role / Device Role / Timing Role: Bidirectional-capable protection element (used unidirectionally here) on isolated 5 V or 3.3 V sensor reference rail. Use Value: Delivers 38.9 V clamping ceiling with 26.7 V breakdown, ensuring sensor ADC reference remains within specification during PWM-induced surges. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ24A-Q | Lower PPPM = 400 W but higher VCL = 39.4 V at same IPPM; SMA package (4.5 mm × 2.7 mm × 2.2 mm) | Larger footprint and 2.2 mm height limit use in ultra-thin modules; identical AEC-Q101 qualification | Select when board layout permits larger package and existing SMA footprints exist |
| TPSMD24 | Same VRWM = 24 V, but higher VCL = 43.5 V at IPPM = 9.2 A; DO-214AB package (7.1 mm × 6.2 mm × 2.3 mm) | DO-214AB requires >2× PCB area; better thermal dissipation but incompatible with SOD123W routing density | Choose for high-volume industrial designs where thermal margin outweighs space constraints |
Compared with SMAJ24A-Q and TPSMD24, PTVS24VS1UR-Q provides identical 24 V clamping function in a 60% smaller footprint and 55% lower profile-critical for modern automotive ADAS and domain controller layouts where vertical clearance and routing density are limiting factors.
Availability
PTVS24VS1UR-Q is available at Aetrix Electronics and suitable for automotive power supply protection, industrial control system inputs, and 24 V embedded sensor interface circuits requiring stable component supply across multi-year production cycles.
Supply support for PTVS24VS1UR-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 logic, discrete, and MOSFET solutions for automotive, industrial, and mobile markets.
PTVS24VS1UR-Q belongs to the PTVSxS1UR-Q series of AEC-Q101-qualified TVS diodes engineered specifically for automotive power rail protection-balancing compact size, high pulse power, and stringent reliability standards.
FAQ
What is the maximum clamping voltage of PTVS24VS1UR-Q under standardized surge conditions?
The maximum clamping voltage (VCL) is 38.9 V at rated peak pulse current (IPPM) of 10.3 A, measured per IEC 61643-321 10/1000 µs waveform. This value ensures downstream 24 V-rated ICs remain within absolute maximum ratings during load dump and other automotive transients.
Does PTVS24VS1UR-Q support bidirectional transient suppression?
No-it is a unidirectional TVS diode optimized for DC power line protection. Its anode is tied to ground, and it conducts only during reverse overvoltage events. For AC or data-line protection requiring symmetrical clamping, a bidirectional variant like PTVS24VS1UR-Q's counterpart in the PTVSxS1UT-Q series would be required.
How does the SOD123W package affect thermal performance compared to larger TVS packages?
The SOD123W package achieves Rth(j-sp) = 18 K/W to the cathode solder point, enabling efficient heat extraction despite its small size. However, Rth(j-a) = 220 K/W in free air limits continuous power handling-designers must ensure adequate copper pour and thermal vias under the cathode pad to sustain repetitive pulses.
Is PTVS24VS1UR-Q compatible with lead-free reflow soldering processes?
Yes-Nexperia specifies full compatibility with standard lead-free reflow profiles (JEDEC J-STD-020). The device withstands peak temperatures up to 260 °C for 30 seconds, and the recommended stencil thickness is 0.1 mm for optimal solder paste volume control on the 2.6 mm × 1.7 mm pad layout.
PTVS24VS1UR-QX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Package/Case:
- SOD-123W
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 24V (Max)
- Voltage - Breakdown (Min):
- 26.7V
- Voltage - Clamping (Max) @ Ipp:
- 38.9V
- Current - Peak Pulse (10/1000µs):
- 10.3A
- Power - Peak Pulse:
- 400W
- 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-123W
PTVS24VS1UR-QX FAQ
1.How can I place an order for PTVS24VS1UR-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for PTVS24VS1UR-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 PTVS24VS1UR-QX reliable?
The price and inventory of PTVS24VS1UR-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PTVS24VS1UR-QX is usually 5 days.
3.What payment methods are accepted for PTVS24VS1UR-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PTVS24VS1UR-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PTVS24VS1UR-QX?
PTVS24VS1UR-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PTVS24VS1UR-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 PTVS24VS1UR-QX?
For technical support, including PTVS24VS1UR-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PTVS24VS1UR-QX requirements.
6.How does Aetrix verify that PTVS24VS1UR-QX is sourced from the original manufacturer or authorized distributors?
All PTVS24VS1UR-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 PTVS24VS1UR-QX meets industry standards.
7.What is the process for return or replacement of PTVS24VS1UR-QX?
All PTVS24VS1UR-QX units undergo pre-shipment inspection (PSI). If there is an issue with PTVS24VS1UR-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 PTVS24VS1UR-QX part is unused and in its original packaging.
Return procedure for PTVS24VS1UR-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PTVS24VS1UR-QX Tags
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ESD9B5.0ST5G
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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onsemi
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Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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