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Vishay General Semiconductor - Diodes Division P4SMA540A-E3/61
- Part No.:
- P4SMA540A-E3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA540A-E3/61.pdf
- Description:
- TVS DIODE 459VWM 740VC DO214AC
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
P4SMA540A-E3/61 from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode designed for high-voltage transient protection in power rails and interface lines. It features a 540 V breakdown voltage (VBR = 513–567 V at 1.0 mA), 459 V standoff voltage (VWM), 740 V clamping voltage (VC) at 0.41 A peak pulse current, and 400 W peak pulse power rating with 10/1000 µs waveform - used to safeguard MOSFETs, DC-DC converters, and industrial power supplies against lightning-induced surges and inductive switching transients.
For engineers reviewing the P4SMA540A-E3/61 datasheet, P4SMA540A-E3/61 pinout, P4SMA540A-E3/61 application, or P4SMA540A-E3/61 equivalent, this device delivers verified clamping performance at 540 V nominal breakdown, RoHS-compliant SMA (DO-214AC) packaging, AEC-Q101 qualification (B revision), and validated thermal resistance (RθJA = 120 °C/W) for reliable operation up to +150 °C junction temperature.
Technical Context
The P4SMA540A-E3/61 operates as a unidirectional avalanche diode, leveraging glass-passivated silicon junction technology to achieve fast response time (<1 ns) and low incremental surge resistance. Its clamping behavior is defined by a sharp reverse-biased breakdown knee above VWM, with specified VC = 740 V at IPPM = 0.41 A under standardized 10/1000 µs surge conditions.
Thermally, it uses an SMA (DO-214AC) package with matte tin-plated leads compliant to J-STD-002 and JESD 22-B102, rated for MSL Level 1 (peak reflow ≤260 °C), and exhibits RθJL = 30 °C/W junction-to-lead thermal resistance - enabling effective heat dissipation when mounted on 5.0 mm × 5.0 mm copper pads per terminal.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 513–567 V at 1.0 mA test current - defines precise avalanche initiation threshold for overvoltage triggering |
| Standoff Voltage VWM | 459 V maximum - ensures no conduction during normal 450 V DC rail operation |
| Clamping Voltage VC | 740 V at 0.41 A peak pulse - limits downstream voltage stress during 10/1000 µs transients |
| Peak Pulse Power PPPM | 400 W (10/1000 µs) - sustains single high-energy surges without failure |
| Operating Temperature | -65 °C to +150 °C - supports deployment in automotive engine bays and industrial outdoor enclosures |
| Package | SMA (DO-214AC) - surface-mount footprint compatible with automated pick-and-place and reflow assembly |
| AEC-Q101 Qualified | Yes (Revision B) - validated for automotive-grade reliability including temperature cycling and HTRB |
Pinout & Package
SMA (DO-214AC) package: molded epoxy case with cathode band marking; matte tin-plated leads; 0.208" × 0.157" (5.28 mm × 3.99 mm) outline; MSL Level 1 compliant; UL 94 V-0 rated compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse surge return path | Connected to protected circuit ground or low-side reference; carries full surge current during clamping |
| Cathode | Reverse-biased avalanche node / Surge sink | Connected to line being protected (e.g., 450 V DC bus); initiates conduction when VAK exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 µs) | Enables robust protection against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) on high-voltage DC lines |
| Glass passivated chip junction | Ensures stable VBR tolerance and long-term leakage stability under thermal cycling and humidity |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving protection margin for downstream SiC MOSFETs |
| RoHS-compliant & halogen-free option available | Meets IPC-1752A material declaration requirements for automotive and industrial OEM supply chains |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking - reduces manufacturing overhead |
Applications
| Industrial HV DC Power Supply Protection | Automotive On-Board Charger (OBC) Input Stage |
|---|---|
Use Scenario: Protecting 400–500 V DC input stage of industrial SMPS against load dump and lightning-induced surges. IC Role / Device Role / Timing Role: Unidirectional TVS placed between HV DC+ and chassis ground to clamp transients before they reach primary-side controller and MOSFETs. Use Value: Clamps 450 V nominal rail to ≤740 V during 0.41 A 10/1000 µs surge, preserving 1200 V SiC switch SOA and preventing gate oxide overstress. |
Use Scenario: Safeguarding AC/DC front-end rectifier output in EV on-board chargers exposed to battery-side transients. IC Role / Device Role / Timing Role: Standoff-rated TVS on OBC DC-link (450–500 V range) to absorb ISO 7637-2 Pulse 5a/b energy without degradation. Use Value: AEC-Q101 qualification and 150 °C TJ rating ensure reliability across -40 °C to +105 °C ambient, meeting automotive ASIL-B system requirements. |
| Telecom Remote Radio Unit (RRU) Power Input | Renewable Energy Solar Inverter DC Link |
Use Scenario: Transient suppression on 48–57 V DC backup supply inputs of outdoor telecom RRUs subjected to induced surges from nearby lightning strikes. IC Role / Device Role / Timing Role: High-VWM TVS deployed at DC input filter stage to shunt surge energy before EMI choke and bulk capacitor. Use Value: 459 V VWM allows use in stacked 48 V systems (e.g., 10×48 V = 480 V) while maintaining margin against ripple and tolerance drift. |
Use Scenario: DC-link protection in string inverters where PV array open-circuit voltage reaches 1000–1500 V, requiring staged clamping networks. IC Role / Device Role / Timing Role: Upper-tier TVS in multi-stage protection scheme, handling residual energy after MOV pre-clamping and before crowbar circuits. Use Value: Precise 513–567 V VBR enables accurate coordination with lower-voltage TVS stages, minimizing let-through energy to IGBT gate drivers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ540A | Same VBR range (513–567 V) but SMB package (DO-214AA); 600 W PPPM rating; higher IPPM = 0.67 A | Higher power handling suits larger PCB areas; less compact than SMA; identical thermal derating profile | Select when board space permits larger footprint and higher surge margin is required beyond 400 W |
| SMCJ540A | Same VBR range; SMC package (DO-214AB); 1500 W PPPM; IPPM = 2.0 A; RθJA = 100 °C/W | Designed for primary-level surge arrest; requires larger copper pour; not drop-in compatible due to pad layout | Choose for front-end protection where 1500 W IEC 61000-4-5 compliance is mandatory and layout allows SMC footprint |
Compared with SMBJ540A and SMCJ540A, the P4SMA540A-E3/61 offers optimal balance of compact SMA packaging, AEC-Q101 qualification, and 400 W surge capability - making it ideal for space-constrained, automotive-qualified, and industrial-grade secondary-stage protection where 0.41 A peak pulse current suffices.
Availability
P4SMA540A-E3/61 is available at Aetrix Electronics and suitable for industrial HV DC power supplies, automotive on-board chargers, telecom remote radio units, and solar inverter DC links requiring stable component supply with traceable sourcing and long lifecycle support.
Supply support for P4SMA540A-E3/61 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
Vishay General Semiconductor is a global leader in discrete semiconductors, specializing in diodes, rectifiers, TVS devices, and optoelectronics with emphasis on reliability, precision, and automotive-grade validation.
The P4SMA Series is engineered for high-voltage transient suppression in demanding environments - targeting automotive powertrain, industrial automation, and renewable energy systems where consistent clamping performance and AEC-Q101 compliance are mandatory.
FAQ
What is the maximum clamping voltage of the P4SMA540A-E3/61 under standard test conditions?
The P4SMA540A-E3/61 has a maximum clamping voltage (VC) of 740 V when subjected to a 10/1000 µs surge waveform at IPPM = 0.41 A. This value is measured per JEDEC standards and reflects the peak voltage seen across the device during transient suppression - critical for ensuring downstream components remain within safe operating area. The P4SMA540A-E3/61 maintains this clamping performance across its full operating temperature range (-65 °C to +150 °C).
Is the P4SMA540A-E3/61 qualified for automotive applications?
Yes, the P4SMA540A-E3/61 is AEC-Q101 qualified under Revision B, as confirmed in Vishay's ordering information table. This qualification covers stress tests including temperature cycling, highly accelerated life testing (HALT), and unbiased highly accelerated stress testing (uHAST). The P4SMA540A-E3/61 is designated for automotive use in subsystems such as on-board chargers and DC-DC converters where high-voltage transient immunity is required.
What does the "E3/61" suffix indicate in P4SMA540A-E3/61?
The "E3" suffix denotes RoHS-compliant, commercial-grade construction with matte tin-plated leads, while "/61" specifies packaging in 7-inch diameter plastic tape and reel containing 1800 units. This format complies with EIA-481-D standards and is optimized for high-speed SMT placement. The P4SMA540A-E3/61 is distinct from HM3 or HE3 variants, which include halogen-free or AEC-Q101-qualified versions - the E3/61 variant is commercial-grade and RoHS-compliant but not AEC-Q101 certified.
Can the P4SMA540A-E3/61 be used in bidirectional configurations?
No, the P4SMA540A-E3/61 is a unidirectional TVS diode, as indicated by the "A" suffix (not "CA"). Its electrical characteristics - including VBR, VWM, and VC - apply only in reverse bias; forward conduction follows standard silicon diode behavior (VF ≈ 3.5 V at 25 A). For bidirectional protection at comparable voltage levels, Vishay specifies the P4SMA540CA series - the P4SMA540A-E3/61 must not be substituted without circuit redesign.
What is the thermal resistance of the P4SMA540A-E3/61, and how does it affect layout design?
The P4SMA540A-E3/61 has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W and junction-to-lead resistance (RθJL) of 30 °C/W, measured on 5.0 mm × 5.0 mm copper pads per terminal. To maintain TJ ≤150 °C under 3.3 W steady-state dissipation, PCB layout must provide adequate copper area and minimize trace length - the P4SMA540A-E3/61 relies on lead conduction more than ambient convection, so thermal vias near terminals significantly improve performance.
P4SMA540A-E3/61 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AC, SMA
- Series:
- P4SMA, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 459V
- Voltage - Breakdown (Min):
- 513V
- Voltage - Clamping (Max) @ Ipp:
- 740V
- Current - Peak Pulse (10/1000µs):
- 410mA
- Power - Peak Pulse:
- 300W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
P4SMA540A-E3/61 FAQ
1.How can I place an order for P4SMA540A-E3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA540A-E3/61 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 P4SMA540A-E3/61 reliable?
The price and inventory of P4SMA540A-E3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA540A-E3/61 is usually 5 days.
3.What payment methods are accepted for P4SMA540A-E3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA540A-E3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA540A-E3/61?
P4SMA540A-E3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA540A-E3/61 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 P4SMA540A-E3/61?
For technical support, including P4SMA540A-E3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA540A-E3/61 requirements.
6.How does Aetrix verify that P4SMA540A-E3/61 is sourced from the original manufacturer or authorized distributors?
All P4SMA540A-E3/61 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 P4SMA540A-E3/61 meets industry standards.
7.What is the process for return or replacement of P4SMA540A-E3/61?
All P4SMA540A-E3/61 units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA540A-E3/61, 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 P4SMA540A-E3/61 part is unused and in its original packaging.
Return procedure for P4SMA540A-E3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA540A-E3/61 Tags
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