My Inquiry
My Account
Nexperia USA Inc. PTVS12VS1UR-QX
- Part No.:
- PTVS12VS1UR-QX
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- SOD-123W
- Datasheet:
-
PTVS12VS1UR-QX.pdf
- Description:
- PTVS12VS1UR-Q/SOD123W/SOD2
- Quantity:
- Payment:
- Shipping:
Inventory:2,960
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
PTVS12VS1UR-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 12 V reverse standoff voltage (VRWM), 14.7 V maximum clamping voltage (VCL) at 20.1 A peak pulse current (IPPM), and <0.005 µA reverse leakage at VRWM - enabling robust ESD and surge protection in space-constrained vehicle subsystems.
For engineers reviewing the PTVS12VS1UR-Q datasheet, PTVS12VS1UR-Q pinout, PTVS12VS1UR-Q application, or PTVS12VS1UR-Q equivalent, this device is selected for its AEC-Q101 qualification, low-profile 1 mm height, and precise 12 V rail protection capability in automotive body control modules, infotainment power supplies, and sensor interface circuits.
Technical Context
This unidirectional TVS operates as a clamping diode triggered by transient overvoltage events exceeding its 12 V reverse standoff threshold. Its silicon junction exhibits sharp avalanche breakdown at 13.3–14.7 V (VBR min/max), delivering sub-100 ns response to IEC 61643-321 10/1000 µs surges up to 400 W peak pulse power.
Thermal design relies on low Rth(j-sp) of 18 K/W to solder point and AEC-Q101-compliant construction, supporting continuous operation from –55 °C to +150 °C junction temperature. The cathode-marked SOD123W package ensures correct polarity alignment during automated placement on high-reliability automotive PCBs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 12 V - Maximum continuous reverse operating voltage before clamping begins; sets protection threshold for 12 V nominal systems. |
| VCL @ IPPM | 19.9 V at 20.1 A - Clamped voltage during 400 W surge; limits downstream IC stress to safe levels under ISO 7637-2 Pulse 1/2a/5a conditions. |
| PPPM | 400 W - Peak pulse power rating per IEC 61643-321 (10/1000 µs); defines maximum transient energy absorption capacity. |
| IRM | 0.005 µA max at VRWM - Ultra-low reverse leakage ensures minimal standby current drain in always-on automotive modules. |
| Tj max | 150 °C - Maximum junction temperature; enables operation in engine bay or under-hood environments without derating. |
| ESD Rating | ±30 kV contact discharge (IEC 61000-4-2); protects against human-body and system-level electrostatic events in assembly and field use. |
Pinout & Package
SOD123W (CFP3) surface-mount plastic package: 2.6 mm × 1.7 mm × 1.0 mm body, flat lead profile, cathode marked by bar on top surface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Connected to protected line (e.g., 12 V rail); clamps transients to ground when voltage exceeds VRWM. |
| 2 (A) | Anode | Connected to circuit ground; completes clamping path during avalanche conduction. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, ADAS, and infotainment with full stress test compliance. |
| 1 mm package height | Enables placement beneath low-clearance shields or connectors in compact ECUs without mechanical interference. |
| Low IRM (≤0.005 µA) | Minimizes quiescent current loss in battery-backed modules such as telematics and gateway controllers. |
| High IPPM (20.1 A) | Supports robust immunity to load dump and inductive switching surges per ISO 7637-2 in 12 V systems. |
Applications
| Automotive Body Control Module | Infotainment Power Supply |
|---|---|
|
Use Scenario: Protecting LIN bus transceivers and door module microcontrollers from battery line transients during jump-start or alternator load dump. IC Role / Device Role: Unidirectional clamping diode placed between 12 V rail and ground, activated only during positive overvoltage events. Use Value: Limits rail voltage to ≤19.9 V during 20.1 A surges, preventing latch-up or damage to 3.3 V/5 V LDOs and MCU I/O pins. |
Use Scenario: Safeguarding USB-C PD and display power inputs in head units exposed to conducted noise from HVAC motors and lighting loads. IC Role / Device Role: Primary overvoltage clamp on 12 V input stage prior to buck converter and PMIC sequencing. Use Value: Absorbs 400 W transients without degradation, maintaining stable 12 V input to downstream regulators during ignition cycling. |
| Engine Control Unit Sensor Interface | ADAS Camera Power Input |
|
Use Scenario: Shielding analog sensor signal conditioning circuits (e.g., MAP, TPS) from coupled transients on shared 5 V reference rails. IC Role / Device Role: Secondary clamping element on regulated 5 V supply derived from main 12 V rail, sized for lower-energy events. Use Value: Provides <0.005 µA leakage to preserve reference accuracy while clamping fast-rising spikes below 100 ns. |
Use Scenario: Protecting 12 V camera module inputs from ESD and cable discharge events during installation or vibration-induced contact. IC Role / Device Role: First-line defense at connector entry point, shunting ±30 kV ESD pulses directly to chassis ground. Use Value: Prevents pixel corruption or reset events in image sensors by limiting transient duration and amplitude before TVS activation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ12A-Q | Same VRWM (12 V), but 400 W PPPM at 10/1000 µs; SMA package (4.5 mm × 2.7 mm × 2.3 mm) vs. SOD123W (2.6 mm × 1.7 mm × 1.0 mm). | Larger footprint and 2.3× higher profile limit use in ultra-thin modules; thermal resistance Rth(j-a) ~100 K/W vs. 70 K/W for PTVS12VS1UR-Q on ceramic PCB. | Select when legacy SMA layout exists or higher board-level thermal mass is available. |
| TPSMD12A | 12 V VRWM, 400 W PPPM, but not AEC-Q101 qualified; typical IRM = 1 µA (200× higher than PTVS12VS1UR-Q's 0.005 µA). | Higher leakage may affect battery life in always-on ADAS cameras; lacks automotive qualification documentation and stress test traceability. | Select only for non-automotive industrial power supplies where AEC-Q101 and ultra-low IRM are not required. |
Compared with SMAJ12A-Q and TPSMD12A, PTVS12VS1UR-Q delivers superior space efficiency, automotive qualification rigor, and leakage performance - making it optimal for next-generation compact, safety-critical 12 V rail protection where board area and standby current are constrained.
Availability
PTVS12VS1UR-Q is available at Aetrix Electronics and suitable for automotive body control modules, infotainment power supplies, and ADAS camera interfaces requiring stable component supply across extended production lifecycles.
Supply support for PTVS12VS1UR-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 leading global semiconductor manufacturer headquartered in Nijmegen, Netherlands, specializing in high-performance, high-reliability discrete and logic devices for automotive, industrial, and consumer markets.
The PTVSxS1UR-Q series targets automotive power rail protection with AEC-Q101 qualification, optimized clamping behavior, and miniature SOD123W packaging - addressing demand for smaller, more robust TVS solutions in modern E/E architectures.
FAQ
What is the maximum clamping voltage of PTVS12VS1UR-Q at its rated peak pulse current?
The maximum clamping voltage (VCL) is 19.9 V at 20.1 A peak pulse current (IPPM), measured per IEC 61643-321 10/1000 µs waveform. This value ensures protected downstream components experience no more than 19.9 V during a full 400 W transient event, critical for safeguarding 20 V-rated input stages.
Is PTVS12VS1UR-Q suitable for bidirectional transient suppression?
No - PTVS12VS1UR-Q is a unidirectional TVS diode, configured to clamp only positive transients on the cathode-connected line relative to ground. For bidirectional protection (e.g., data lines or AC-coupled signals), a dedicated bidirectional TVS such as PTVS12VS1UR-S must be used instead.
How does the SOD123W package impact thermal performance in automotive PCB layouts?
The SOD123W package achieves Rth(j-sp) = 18 K/W to solder point when mounted on standard FR4 with cathode pad extension, enabling efficient heat transfer to copper pour. Its 1 mm height avoids interference with adjacent tall components in dense ECU layouts while maintaining AEC-Q101 thermal cycle reliability.
Can PTVS12VS1UR-Q replace older P6SMB12A devices in existing designs?
Yes - PTVS12VS1UR-Q matches P6SMB12A's 12 V VRWM and 400 W PPPM rating but offers AEC-Q101 qualification, 0.005 µA IRM (vs. 1 µA), and 50% smaller footprint. Layout adaptation is required due to SOD123W vs. DO-214AA (SMB) dimensions, and revalidation per ISO 7637-2 is recommended.
PTVS12VS1UR-QX Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Nexperia USA Inc.
- Package/Case:
- SOD-123W
- Series:
- PTVSxS1UR
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 12V (Max)
- Voltage - Breakdown (Min):
- 13.3V
- Voltage - Clamping (Max) @ Ipp:
- 19.9V
- Current - Peak Pulse (10/1000µs):
- 20.1A
- 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
PTVS12VS1UR-QX FAQ
1.How can I place an order for PTVS12VS1UR-QX through Aetrix?
Please submit a Request for Quotation (RFQ) for PTVS12VS1UR-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 PTVS12VS1UR-QX reliable?
The price and inventory of PTVS12VS1UR-QX are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PTVS12VS1UR-QX is usually 5 days.
3.What payment methods are accepted for PTVS12VS1UR-QX?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PTVS12VS1UR-QX transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PTVS12VS1UR-QX?
PTVS12VS1UR-QX orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PTVS12VS1UR-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 PTVS12VS1UR-QX?
For technical support, including PTVS12VS1UR-QX datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PTVS12VS1UR-QX requirements.
6.How does Aetrix verify that PTVS12VS1UR-QX is sourced from the original manufacturer or authorized distributors?
All PTVS12VS1UR-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 PTVS12VS1UR-QX meets industry standards.
7.What is the process for return or replacement of PTVS12VS1UR-QX?
All PTVS12VS1UR-QX units undergo pre-shipment inspection (PSI). If there is an issue with PTVS12VS1UR-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 PTVS12VS1UR-QX part is unused and in its original packaging.
Return procedure for PTVS12VS1UR-QX:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PTVS12VS1UR-QX Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
