My Inquiry
My Account
Nexperia USA Inc. PTVS20VS1UR/8X
- Part No.:
- PTVS20VS1UR/8X
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- SOD-123W
- Datasheet:
-
PTVS20VS1UR/8X.pdf
- Description:
- TVS DIODE 20VWM 32.4VC SOD123W
- Quantity:
- Payment:
- Shipping:
Inventory:2,840
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
PTVS20VS1UR/8X from Nexperia is a unidirectional 400 W Transient Voltage Suppressor (TVS) in SOD123W (CFP3) package, designed for high-energy transient overvoltage protection on DC power rails. It features a 20 V reverse standoff voltage (VRWM), 32.4 V clamping voltage (VCL) at 12.3 A peak pulse current (IPPM), and <0.1 µA reverse leakage at rated VRWM - enabling robust ESD and surge immunity in space-constrained industrial and power management circuits.
For engineers reviewing the PTVS20VS1UR/8X datasheet, PTVS20VS1UR/8X pinout, PTVS20VS1UR/8X application, or PTVS20VS1UR/8X equivalent, key selection criteria include its 20 V VRWM tolerance, 32.4 V clamping performance under 10/1000 µs IEC 61643-321 waveform, SOD123W thermal resistance (Rth(j-sp) = 18 K/W), and AEC-Q101 qualification status per revision history.
Technical Context
This unidirectional TVS operates as a clamping device: it remains high-impedance below 20 V VRWM, then avalanches sharply at 22.2–24.5 V breakdown (VBR), limiting transients to ≤32.4 V at 12.3 A. Its junction-to-solder-point thermal resistance of 18 K/W enables effective heat dissipation during repetitive surges when mounted on standard PCB copper.
The device complies with IEC 61643-321 (10/1000 µs waveform) and achieves 30 kV contact ESD rating per IEC 61000-4-2. Its 1 mm profile and 2.6 × 1.7 mm footprint support ultra-thin board designs without compromising 400 W peak pulse power handling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 20 V - Maximum continuous reverse operating voltage before clamping begins; sets DC rail compatibility. |
| VBR (min–max) | 22.2 V – 24.5 V - Breakdown occurs within this range at 1 mA; ensures predictable turn-on margin above VRWM. |
| VCL @ IPPM | 32.4 V at 12.3 A - Clamped voltage during full 10/1000 µs surge; defines maximum stress on protected ICs. |
| PPPM | 400 W - Peak pulse power capability per IEC 61643-321; supports high-energy surge suppression. |
| IRM | 0.1 µA max at VRWM - Ultra-low leakage preserves battery life and avoids false triggering in low-power systems. |
| Rth(j-sp) | 18 K/W - Junction-to-solder-point thermal resistance; enables reliable thermal coupling to PCB copper for surge duty cycling. |
Pinout & Package
SOD123W (CFP3) plastic surface-mount package: 2.6 mm × 1.7 mm × 1.0 mm body, flat leads, cathode marked by bar.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | Cathode (K) | Anode-referenced clamping node; connects to protected line (e.g., +12 V rail); marking bar identifies this terminal. |
| 2 | Anode (A) | Reference/ground connection; must be low-inductance path to system ground plane for effective transient shunting. |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power | Handles IEC 61000-4-5 Level 4 surges (4 kV line-earth) without degradation when properly mounted. |
| 1 mm package height | Enables use in ultra-thin consumer and automotive ECUs where Z-axis clearance is constrained to ≤1.1 mm. |
| AEC-Q101 qualified | Validated for automotive-grade reliability (per revision v.4, 20251201); suitable for non-safety-critical vehicle subsystems. |
| 30 kV ESD immunity | Withstands contact discharge per IEC 61000-4-2 - eliminates need for upstream ESD diodes in many USB/IO interfaces. |
Applications
| Industrial Power Rail Protection | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: 24 V DC input stage of programmable logic controller (PLC) I/O module exposed to load dump and inductive switching noise. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between input rail and chassis ground, responding within <1 ns to limit transients to safe levels. Use Value: Clamps 10/1000 µs surges to ≤32.4 V while dissipating 400 W, protecting downstream DC-DC converters and microcontrollers from latch-up or gate oxide damage. |
Use Scenario: 12 V supply line feeding interior lighting control unit in passenger vehicle, subject to ISO 7637-2 Pulse 1/2a/5a. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main power feed, positioned adjacent to connector entry point to minimize loop inductance. Use Value: Withstands 30 kV ESD events and 400 W surges per IEC 61643-321, meeting AEC-Q101 requirements for BCM subassemblies per revision v.4. |
| USB-C Power Delivery Interface | Smart Meter Auxiliary Power Supply |
Use Scenario: VBUS line protection in USB-C PD sink design operating up to 20 V, requiring low-leakage, fast-response surge suppression. IC Role / Device Role / Timing Role: Standoff-clamp TVS directly across VBUS and GND, leveraging 0.1 µA IRM to avoid quiescent current drain in battery-backed mode. Use Value: Maintains 20 V VRWM margin while clamping to 32.4 V during 10/1000 µs surges - preserving PD negotiation integrity and preventing PHY damage. |
Use Scenario: 24 V auxiliary supply input of utility smart meter exposed to lightning-induced surges on external sensor lines. IC Role / Device Role / Timing Role: First-line transient suppressor on AC/DC converter output, sized to absorb energy before secondary TVS or MOV stages. Use Value: 400 W PPPM and 18 K/W Rth(j-sp) allow repeated surge handling without thermal runaway, extending field lifetime in outdoor deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ20A | DO-214AC package (4.5 × 2.7 mm); 3.5 mm height; 400 W PPPM; 32.4 V VCL @ 12.3 A; 1 µA IRM at VRWM. | Larger footprint and height - unsuitable for ultra-thin designs; higher thermal resistance (Rth(j-a) ≈ 50 K/W). | Select when board space allows larger package and legacy DO-214AC footprint compatibility is required. |
| 1.5SMC20A | DO-214AB package (7.1 × 6.2 mm); 2.6 mm height; 1500 W PPPM; 32.4 V VCL @ 46.3 A; 5 µA IRM at VRWM. | Higher power but significantly larger; not AEC-Q101 qualified; intended for primary AC-side protection. | Choose only for high-energy front-end protection where PCB area is abundant and automotive qualification is not needed. |
Compared with SMAJ20A and 1.5SMC20A, PTVS20VS1UR/8X delivers identical clamping performance in a 65% smaller footprint and 1 mm height, with AEC-Q101 validation and 5× lower leakage - making it optimal for modern compact, automotive-adjacent, and battery-sensitive designs.
Availability
PTVS20VS1UR/8X is available at Aetrix Electronics and suitable for industrial power rail protection, automotive body control modules, USB-C power delivery interfaces, and smart meter auxiliary power supplies requiring stable component supply and long-term lifecycle assurance.
Supply support for PTVS20VS1UR/8X 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 high-volume, high-reliability discrete and logic devices, with leadership in advanced packaging and automotive-qualified components.
The PTVSxS1UR series targets compact, high-efficiency transient protection in automotive and industrial power systems - emphasizing low-profile SMD integration, AEC-Q101 compliance, and precise clamping for sensitive 12–24 V electronics.
FAQ
Is PTVS20VS1UR/8X AEC-Q101 qualified?
Yes - per revision v.4 (issued 1 December 2025), PTVS20VS1UR/8X is explicitly listed among the 33 types granted AEC-Q101 qualification in the revision history. This confirms stress-test validation for automotive environments including temperature cycling, humidity, and mechanical shock - though suitability for safety-critical systems requires separate system-level assessment.
What is the maximum clamping voltage under surge conditions?
The maximum clamping voltage (VCL) is 32.4 V, measured at 12.3 A peak pulse current (IPPM) using the standardized 10/1000 µs waveform per IEC 61643-321. This value is guaranteed across the full operating temperature range and represents the highest voltage seen across the device during worst-case surge events.
How does the SOD123W package affect thermal performance?
The SOD123W package achieves a junction-to-solder-point thermal resistance (Rth(j-sp)) of 18 K/W when soldered per recommended footprint - significantly lower than standard SMA/SMB packages. This enables efficient heat transfer to PCB copper, supporting repeated 400 W surge handling without thermal derating in typical 2-layer FR4 layouts.
Can PTVS20VS1UR/8X replace older PTVS20VS1U parts?
No - PTVS20VS1UR/8X uses the SOD123W (CFP3) package, whereas legacy PTVS20VS1U variants use SOD123. Though both are 2-pin unidirectional TVS diodes, the SOD123W has different dimensions (2.6 × 1.7 mm vs. 3.7 × 1.7 mm), solder pad layout, and thermal characteristics. Direct replacement requires PCB footprint redesign and thermal validation.
PTVS20VS1UR/8X 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):
- 20V (Max)
- Voltage - Breakdown (Min):
- 22.2V
- Voltage - Clamping (Max) @ Ipp:
- 32.4V
- Current - Peak Pulse (10/1000µs):
- 12.3A
- 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
PTVS20VS1UR/8X FAQ
1.How can I place an order for PTVS20VS1UR/8X through Aetrix?
Please submit a Request for Quotation (RFQ) for PTVS20VS1UR/8X 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 PTVS20VS1UR/8X reliable?
The price and inventory of PTVS20VS1UR/8X are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PTVS20VS1UR/8X is usually 5 days.
3.What payment methods are accepted for PTVS20VS1UR/8X?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PTVS20VS1UR/8X transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PTVS20VS1UR/8X?
PTVS20VS1UR/8X orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PTVS20VS1UR/8X 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 PTVS20VS1UR/8X?
For technical support, including PTVS20VS1UR/8X datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PTVS20VS1UR/8X requirements.
6.How does Aetrix verify that PTVS20VS1UR/8X is sourced from the original manufacturer or authorized distributors?
All PTVS20VS1UR/8X 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 PTVS20VS1UR/8X meets industry standards.
7.What is the process for return or replacement of PTVS20VS1UR/8X?
All PTVS20VS1UR/8X units undergo pre-shipment inspection (PSI). If there is an issue with PTVS20VS1UR/8X, 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 PTVS20VS1UR/8X part is unused and in its original packaging.
Return procedure for PTVS20VS1UR/8X:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PTVS20VS1UR/8X 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…
