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Nexperia USA Inc. PTVS40VS1UR,115
- Part No.:
- PTVS40VS1UR,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- SOD-123W
- Datasheet:
-
PTVS40VS1UR,115.pdf
- Description:
- TVS DIODE 40VWM 64.5VC SOD123W
- Quantity:
- Payment:
- Shipping:
Inventory:5,147
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Product details
Overview
PTVS40VS1UR,115 from Nexperia is a unidirectional 400 W Transient Voltage Suppressor (TVS) in SOD123W (CFP3) package, designed for clamping transient overvoltages on DC power rails. It features VRWM = 40 V, VBR(min) = 44.4 V at 1 mA, VCL(max) = 64.5 V at IPPM = 6.2 A (10/1000 µs), and IRM ≤ 0.001 µA - enabling robust protection of 3.3–48 V systems such as automotive body control modules and industrial PLC I/O ports.
For engineers reviewing the PTVS40VS1UR,115 datasheet, PTVS40VS1UR,115 pinout, PTVS40VS1UR,115 application, or PTVS40VS1UR,115 equivalent, key selection criteria include clamping voltage margin relative to system rail, peak pulse current handling under IEC 61643-321 10/1000 µs waveform, thermal resistance to PCB (Rth(j-sp) = 18 K/W), and AEC-Q101 qualification status per revision history.
Technical Context
This unidirectional TVS operates as a reverse-biased avalanche diode, triggering when transient voltage exceeds VRWM = 40 V and clamping to ≤64.5 V at 6.2 A peak pulse current. Its breakdown occurs at VBR = 44.4–49.1 V (min–max, 1 mA test), with leakage <0.001 µA at rated standoff, ensuring minimal standby power loss in always-on circuits.
The device uses a planar silicon junction structure optimized for fast response (<1 ns), low capacitance (<100 pF typical), and stable performance across −55 °C to +150 °C junction temperature. Thermal design relies on low Rth(j-sp) = 18 K/W to cathode solder point, enabling effective heat dissipation in compact SMD layouts without heatsinks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 40 V - maximum continuous reverse operating voltage before clamping begins; sets upper limit for protected rail stability. |
| VBR (min) | 44.4 V @ 1 mA - guaranteed avalanche initiation threshold; ensures reliable turn-on above system nominal voltage. |
| VCL (max) | 64.5 V @ 6.2 A (10/1000 µs) - peak clamped voltage seen by downstream circuitry during worst-case surge. |
| PPPM | 400 W - rated peak pulse power per IEC 61643-321; defines energy-handling capability for standardized transients. |
| IRM | ≤0.001 µA @ VRWM - ultra-low reverse leakage preserves battery life and avoids false triggering in high-impedance nodes. |
| Rth(j-sp) | 18 K/W - thermal resistance from junction to cathode solder point; enables direct PCB copper pour thermal coupling for reliability. |
| AEC-Q101 | Qualified per revision v.4 (20251201) - validated for automotive-grade temperature cycling, HBM ESD (>4 kV), and mechanical stress. |
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. Optimized for automated placement and reflow soldering with standard footprint (Fig. 6).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (K) | Cathode | Connected to protected line (e.g., 40 V rail); carries full surge current during clamping; primary thermal path to PCB. |
| 2 (A) | Anode | Connected to ground reference; completes conduction path during transient; must maintain low-inductance ground return. |
Key Features
| Feature | Design Value |
|---|---|
| Low-profile SMD package | 1.0 mm max height - enables use in space-constrained automotive ECUs and portable industrial sensors. |
| High ESD immunity | 30 kV contact discharge (IEC 61000-4-2) - protects against human-body and system-level electrostatic events without external shielding. |
| Stable clamping across temperature | VCL drift <±5% from −40 °C to +125 °C - ensures consistent protection margin in under-hood or factory-floor environments. |
| Automotive-qualified reliability | AEC-Q101 certified per latest revision v.4 - supports functional safety requirements for ASIL-B compatible subsystems. |
| Low thermal resistance | Rth(j-sp) = 18 K/W - allows >90% of surge energy to dissipate into PCB copper, reducing junction temperature rise during repeated transients. |
Applications
| Automotive Body Control Module | Industrial PLC Digital Input |
|---|---|
Use Scenario: Protects 40 V supply rail in BCM against load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS clamps surges within nanoseconds, limiting voltage to <65 V at 6.2 A peak. Use Value: Prevents damage to MCU power domains and CAN transceivers while maintaining AEC-Q101 compliance. |
Use Scenario: Shields 24–48 V digital input channels from field-wiring induced transients (IEC 61000-4-4 EFT). IC Role / Device Role / Timing Role: Fast-acting clamping element placed directly at connector entry point before signal conditioning ICs. Use Value: Eliminates need for discrete RC filters or additional TVS stages, reducing BOM count and board area. |
| Smart Meter Power Supply | Medical Diagnostic Equipment |
Use Scenario: Guards AC/DC converter output against lightning-induced surges on utility-connected metering lines. IC Role / Device Role / Timing Role: Primary overvoltage clamp on regulated 40 V bias rail feeding metrology ADC and isolation drivers. Use Value: Maintains measurement accuracy by preventing latch-up or parametric shift in precision analog front-end components. |
Use Scenario: Secures auxiliary 40 V power rail in portable ultrasound or imaging units exposed to ESD during clinical handling. IC Role / Device Role / Timing Role: Low-leakage TVS placed adjacent to isolated DC-DC converter output to suppress coupling noise. Use Value: Ensures uninterrupted operation during 30 kV ESD events without resetting microcontroller or corrupting image buffers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS protection applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ40A | Same VRWM (40 V), but lower PPPM = 400 W only at 25 °C; derates to 200 W at 125 °C; Rth(j-a) = 50 K/W vs. 70 K/W for PTVS40VS1UR. | Requires larger PCB copper area for thermal management; not AEC-Q101 qualified. | Prefer PTVS40VS1UR where automotive qualification or compact layout is required. |
| 1.5SMC40A | Higher package volume (DO-214AB), VRWM = 40 V, VCL = 64.5 V, but IPPM = 6.5 A; Rth(j-a) = 35 K/W; no AEC-Q101 listing. | Less suitable for high-density automotive modules due to 4.5 mm height and lack of automotive validation. | Choose PTVS40VS1UR when board height <1.1 mm and AEC-Q101 traceability are mandatory. |
Compared with SMAJ40A and 1.5SMC40A, PTVS40VS1UR delivers identical clamping performance in a 40% smaller footprint, with verified AEC-Q101 qualification and superior thermal coupling to PCB - making it optimal for next-generation automotive and industrial edge devices where size, reliability, and qualification are co-constrained.
Availability
PTVS40VS1UR,115 is available at Aetrix Electronics and suitable for automotive body control modules, industrial PLC I/O protection, and smart meter power supply designs requiring stable component supply, long-term lifecycle support, and AEC-Q101-compliant surge resilience.
Supply support for PTVS40VS1UR,115 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 delivering high-performance, reliable discrete, logic, and MOSFET solutions with focus on efficiency, miniaturization, and automotive-grade quality.
The PTVSxS1UR series belongs to Nexperia's transient protection portfolio, engineered specifically for robust, low-profile overvoltage suppression in automotive and industrial power rails where space, thermal performance, and qualification rigor are critical.
FAQ
What is the maximum clamping voltage of PTVS40VS1UR,115 under IEC 61643-321 conditions?
The maximum clamping voltage (VCL) is 64.5 V at IPPM = 6.2 A using the 10/1000 µs current waveform per IEC 61643-321. This value is measured at Tj = 25 °C and represents the worst-case voltage imposed on protected circuitry during standardized surge testing.
Is PTVS40VS1UR,115 qualified for automotive applications per AEC-Q101?
Yes - according to Revision v.4 (released 1 December 2025), PTVS40VS1UR,115 is explicitly listed among the 33 products that retain AEC-Q101 qualification. The datasheet confirms qualification per Automotive Electronics Council Stress Test Standard Q101 for discrete semiconductors.
How does the SOD123W package affect thermal performance compared to SMA or DO-214AC?
The SOD123W package achieves Rth(j-sp) = 18 K/W to the cathode solder point - significantly lower than SMA (≈40 K/W) or DO-214AC (≈55 K/W) - due to its flat lead construction and direct thermal path to PCB copper. This enables higher surge repetition rates without thermal runaway in dense layouts.
Can PTVS40VS1UR,115 be used in bidirectional configurations?
No - PTVS40VS1UR,115 is strictly unidirectional. Its pinout (K/A) and internal structure support clamping only for positive transients on the cathode side. For bidirectional protection, Nexperia offers the PTVS40VS1UR's complementary series PTVS40VS1UTR (dual-diode configuration), not this part number.
PTVS40VS1UR,115 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):
- 40V
- Voltage - Breakdown (Min):
- 44.4V
- Voltage - Clamping (Max) @ Ipp:
- 64.5V
- Current - Peak Pulse (10/1000µs):
- 6.2A
- 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
PTVS40VS1UR,115 FAQ
1.How can I place an order for PTVS40VS1UR,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PTVS40VS1UR,115 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 PTVS40VS1UR,115 reliable?
The price and inventory of PTVS40VS1UR,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PTVS40VS1UR,115 is usually 5 days.
3.What payment methods are accepted for PTVS40VS1UR,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PTVS40VS1UR,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PTVS40VS1UR,115?
PTVS40VS1UR,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PTVS40VS1UR,115 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 PTVS40VS1UR,115?
For technical support, including PTVS40VS1UR,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PTVS40VS1UR,115 requirements.
6.How does Aetrix verify that PTVS40VS1UR,115 is sourced from the original manufacturer or authorized distributors?
All PTVS40VS1UR,115 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 PTVS40VS1UR,115 meets industry standards.
7.What is the process for return or replacement of PTVS40VS1UR,115?
All PTVS40VS1UR,115 units undergo pre-shipment inspection (PSI). If there is an issue with PTVS40VS1UR,115, 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 PTVS40VS1UR,115 part is unused and in its original packaging.
Return procedure for PTVS40VS1UR,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PTVS40VS1UR,115 Tags
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ESD9B5.0ST5G
onsemi
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DESD3V3E1BL-7B
Diodes Incorporated
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onsemi
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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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Toshiba Semiconductor and Storage
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Diodes Incorporated
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