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Nexperia USA Inc. PTVS33VS1UTR,115
- Part No.:
- PTVS33VS1UTR,115
- Manufacturer:
- Nexperia USA Inc.
- Category:
- TVS Diodes
- Package:
- SOD-123W
- Datasheet:
-
PTVS33VS1UTR,115.pdf
- Description:
- TVS DIODE 33VWM 53.3VC SOD123W
- Quantity:
- Payment:
- Shipping:
Inventory:7,188
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Product details
Overview
PTVS33VS1UTR from Nexperia is a unidirectional 400 W transient voltage suppressor (TVS) diode in SOD123W (CFP3) package, designed for high-temperature overvoltage protection in power rails. It features 33 V reverse standoff voltage (VRWM), 53.3 V clamping voltage (VCL) at 7.5 A peak pulse current, and operates up to 185 °C junction temperature - enabling use in industrial motor drives and automotive under-hood power management.
For engineers reviewing the PTVS33VS1UTR datasheet, PTVS33VS1UTR pinout, PTVS33VS1UTR application, or PTVS33VS1UTR equivalent, this page delivers verified electrical parameters, thermal derating behavior, cathode/anode terminal mapping, and real-world deployment context for robust ESD and surge protection design.
Technical Context
This unidirectional TVS diode operates as a clamping device in series with the protected line, conducting only during overvoltage events above its breakdown threshold (VBR = 36.7–40.6 V). Its low 0.001 µA reverse leakage at VRWM ensures minimal standby power loss in always-on systems.
Thermal performance is defined by Rth(j-sp) = 18 K/W to solder point and rated peak pulse power of 400 W under IEC 61643-321 10/1000 µs waveform - with derating to ~75% at Tj = 150 °C per Figure 2, confirming suitability for sustained high-ambient environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VRWM | 33 V - Maximum continuous reverse operating voltage before clamping begins; sets minimum system rail margin. |
| VBR (min/typ/max) | 36.7 / 38.7 / 40.6 V at 5 mA - Confirms reliable turn-on above VRWM with controlled tolerance band for design margining. |
| VCL @ IPPM | 53.3 V at 7.5 A - Clamped voltage during 10/1000 µs surge; defines maximum stress on downstream ICs. |
| PPPM | 400 W - Peak pulse power handling per IEC 61643-321; enables protection against 1 kV/500 A surges in typical PCB layouts. |
| Tj max | 185 °C - Junction temperature limit; supports operation in engine control units, industrial inverters, and sealed power supplies. |
| Rth(j-sp) | 18 K/W - Thermal resistance to solder point; allows accurate junction temperature estimation using PCB copper area and layout. |
| IRM | 0.001 µA at VRWM - Ultra-low leakage preserves battery life and avoids false triggering in low-power sensor nodes. |
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., 33 V rail); polarity must match forward-biased clamping direction. |
| 2 | Anode (A) | Connected to ground or lower-potential reference; completes conduction path during overvoltage events. |
Key Features
| Feature | Design Value |
|---|---|
| High-temperature operation | Junction rating up to 185 °C enables placement near heat sources without derating penalties. |
| Low-profile SOD123W package | 1.0 mm max height reduces board clearance issues in stacked or enclosed modules. |
| IEC 61000-4-2 ESD robustness | 30 kV contact discharge rating eliminates need for secondary ESD stages in front-end protection. |
| Stable clamping across temperature | Temperature coefficient SZ = 0.5 mV/K ensures predictable VCL variation in wide ambient ranges. |
| Low thermal resistance to solder point | 18 K/W Rth(j-sp) enables effective heat transfer to PCB copper, supporting repeated surge endurance. |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
Use Scenario: Protection of 33 V auxiliary power rail against load dump and inductive switching transients in PLC I/O modules. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed directly at connector entry point to shunt surge energy before reaching DC-DC converter input. Use Value: Withstands 400 W pulses while maintaining VCL ≤ 53.3 V, preventing damage to 36 V-rated buck controllers and isolators. |
Use Scenario: Guarding LIN bus power supply lines in door module ECUs exposed to hot-cranking and jump-start conditions. IC Role / Device Role / Timing Role: Fast-response overvoltage clamp on 33 V VBAT-derived rail, triggered within nanoseconds of transient onset. Use Value: 0.001 µA IRM avoids parasitic drain on battery-backed circuits; 185 °C rating accommodates under-dash mounting. |
| Telecom Power Feeds | Renewable Energy Inverters |
Use Scenario: Input-stage surge suppression for PoE-powered remote radios operating on 33 V midspan injectors. IC Role / Device Role / Timing Role: Primary TVS on DC input, coordinated with upstream GDT and downstream π-filter for multi-stage immunity. Use Value: 400 W PPPM handles combined lightning-induced surges and capacitive discharge events without degradation. |
Use Scenario: DC-link overvoltage protection in solar microinverters where MPPT output fluctuates near 33 V nominal. IC Role / Device Role / Timing Role: Clamp diode mounted adjacent to boost converter MOSFETs to absorb switching spikes and grid fault transients. Use Value: Stable VBR and low Rth(j-sp) ensure consistent clamping performance across 40–95 °C operating range. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar unidirectional TVS diode applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ33A | DO-214AC package (2.8 mm height), 33 V VRWM, 53.3 V VCL, but rated at 400 W only at 25 °C; derates to 200 W at 125 °C. | Larger footprint and higher profile limits use in space-constrained modules; lower thermal stability reduces reliability in high-T ambient. | Select when legacy DO-214AC footprint compatibility is required and ambient temperature remains below 85 °C. |
| SMCJ33A | DO-214AB package (2.6 mm height), same 33 V VRWM, but 1500 W PPPM rating and 53.3 V VCL; significantly larger (7.1 mm × 6.2 mm). | Higher surge capacity suits infrequent high-energy events (e.g., AC mains coupling), but excessive size prevents use in compact DC rails. | Choose only if system-level testing confirms need for >400 W single-pulse capability and board space permits larger footprint. |
Compared with SMAJ33A, PTVS33VS1UTR offers superior thermal stability and lower profile for embedded designs; versus SMCJ33A, it trades raw energy capacity for space efficiency and consistent high-temperature clamping performance.
Availability
PTVS33VS1UTR is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, telecom power feeds, and renewable energy inverters requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for PTVS33VS1UTR 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, high-reliability discrete, logic, and MOSFET solutions for automotive, industrial, and consumer markets.
The PTVSxS1UTR series belongs to Nexperia's high-temperature TVS portfolio, engineered specifically for robust transient suppression in harsh-environment power systems where thermal resilience and compact packaging are critical.
FAQ
What is the maximum clamping voltage of PTVS33VS1UTR under standard test conditions?
The clamping voltage (VCL) is 53.3 V at 7.5 A peak pulse current (IPPM), measured per IEC 61643-321 10/1000 µs waveform. This value is guaranteed across the full operating temperature range and defines the upper voltage limit imposed on protected circuitry during surge events.
Can PTVS33VS1UTR be used in bidirectional protection configurations?
No - PTVS33VS1UTR is a unidirectional TVS diode with anode and cathode terminals. It conducts only when the cathode is positive relative to the anode. For bidirectional protection, two devices must be connected in series opposition or a dedicated bidirectional part like PTVS33VS1UTR-BI must be selected.
How does the 185 °C junction rating impact PCB layout requirements?
The 185 °C rating allows operation at elevated ambient temperatures, but requires adequate copper pour on the cathode pad (≥1 cm² recommended per Table 6) to maintain Rth(j-sp) = 18 K/W. Insufficient copper increases junction temperature, accelerating parametric drift and reducing surge endurance.
Is PTVS33VS1UTR compliant with AEC-Q200 for automotive use?
No - this device is not AEC-Q200 qualified. While its 185 °C rating meets some under-hood temperature requirements, Nexperia explicitly states in Section 14 that non-automotive qualified products are not tested to automotive reliability standards and carry no warranty for such applications.
PTVS33VS1UTR,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):
- 33V
- Voltage - Breakdown (Min):
- 36.7V
- Voltage - Clamping (Max) @ Ipp:
- 53.3V
- Current - Peak Pulse (10/1000µs):
- 7.5A
- 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
PTVS33VS1UTR,115 FAQ
1.How can I place an order for PTVS33VS1UTR,115 through Aetrix?
Please submit a Request for Quotation (RFQ) for PTVS33VS1UTR,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 PTVS33VS1UTR,115 reliable?
The price and inventory of PTVS33VS1UTR,115 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for PTVS33VS1UTR,115 is usually 5 days.
3.What payment methods are accepted for PTVS33VS1UTR,115?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for PTVS33VS1UTR,115 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for PTVS33VS1UTR,115?
PTVS33VS1UTR,115 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your PTVS33VS1UTR,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 PTVS33VS1UTR,115?
For technical support, including PTVS33VS1UTR,115 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your PTVS33VS1UTR,115 requirements.
6.How does Aetrix verify that PTVS33VS1UTR,115 is sourced from the original manufacturer or authorized distributors?
All PTVS33VS1UTR,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 PTVS33VS1UTR,115 meets industry standards.
7.What is the process for return or replacement of PTVS33VS1UTR,115?
All PTVS33VS1UTR,115 units undergo pre-shipment inspection (PSI). If there is an issue with PTVS33VS1UTR,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 PTVS33VS1UTR,115 part is unused and in its original packaging.
Return procedure for PTVS33VS1UTR,115:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
PTVS33VS1UTR,115 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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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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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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