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Vishay General Semiconductor - Diodes Division P4SMA510A-E3/61
- Part No.:
- P4SMA510A-E3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA510A-E3/61.pdf
- Description:
- TVS DIODE 434VWM 698VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:4,202
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Product details
Overview
P4SMA510A-E3/61 from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, designed for clamping voltage transients on power and signal lines. It features a 485 V minimum breakdown voltage (VBR), 434 V standoff voltage (VWM), 698 V maximum clamping voltage (VC) at 0.43 A peak pulse current (IPPM), and 400 W peak pulse power rating with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor interfaces in industrial power supplies.
For engineers reviewing the P4SMA510A-E3/61 datasheet, P4SMA510A-E3/61 pinout, P4SMA510A-E3/61 application, or P4SMA510A-E3/61 equivalent, key selection criteria include its 434 V working voltage, unidirectional polarity, SMA package thermal resistance (RθJA = 120 °C/W), AEC-Q101 qualification status (via HE3/HM3 variants), and compliance with UL 497B surge protector classification.
Technical Context
The P4SMA510A-E3/61 operates as a silicon avalanche diode with glass-passivated junction, enabling fast response (<1 ns) to transient overvoltage events. Its unidirectional configuration provides reverse-biased clamping only, with cathode band marking for polarity identification.
It delivers 400 W peak pulse power under 10/1000 µs waveform at TA = 25 °C, derated linearly above 25 °C per Fig. 2, and supports 40 A non-repetitive forward surge current (IFSM) for 8.3 ms half-sine wave - critical for handling inductive switch-off spikes in DC bus protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 434 V - maximum continuous reverse operating voltage before leakage exceeds 1 µA; defines safe DC bias margin. |
| VBR (min/max) | 485 V / 535 V at 1 mA test current - ensures reliable avalanche conduction onset across temperature and unit variation. |
| VC @ IPPM | 698 V at 0.43 A - clamped voltage during 10/1000 µs transient; determines protected circuit's maximum stress level. |
| PPPM | 400 W - peak pulse power handling capability; enables robust protection against lightning-induced surges per IEC 61000-4-5. |
| RθJA | 120 °C/W - junction-to-ambient thermal resistance on standard 0.2" × 0.2" copper pads; guides PCB thermal layout design. |
| TJ max | +150 °C - maximum junction temperature; supports operation in high-ambient industrial environments. |
| Package | SMA (DO-214AC) - surface-mount package with matte tin-plated leads, MSL Level 1, RoHS-compliant (E3 suffix). |
Pinout & Package
SMA (DO-214AC) package: molded epoxy case meeting UL 94 V-0 flammability rating; cathode indicated by band; terminals solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse voltage reference node | Connected to lower-potential side of protected line; defines directionality of clamping action. |
| Cathode | Clamping output / Avalanche conduction terminal | Connected to higher-potential side (e.g., VIN rail); conducts during overvoltage to shunt energy to ground. |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 µs) | Enables single-device protection against Class III lightning surges (IEC 61000-4-5, 1 kV/2 Ω) on 400 V DC rails. |
| Glass-passivated junction | Ensures stable VBR tolerance and long-term reliability under repeated transient stress without parameter drift. |
| MSL Level 1, 260 °C reflow compatible | Supports standard lead-free SMT assembly without moisture-related popcorning or delamination risks. |
| AEC-Q101 qualified variant available | HE3/HM3 versions meet automotive-grade reliability requirements for engine control and battery management systems. |
| UL 497B recognized (QVGQ2) | Validates suitability as primary surge protection component in telecom and industrial equipment requiring safety certification. |
Applications
| Industrial Power Supply Input Protection | DC Bus Overvoltage Clamping |
|---|---|
|
Use Scenario: Protecting 400 V DC input stage of programmable logic controller (PLC) power module against load dump and switching transients. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed between DC+ and chassis ground to clamp positive-going surges exceeding 434 V. Use Value: Limits transient voltage to ≤698 V, preventing damage to downstream rectifier diodes and bulk capacitors rated at 450 V. |
Use Scenario: Safeguarding IGBT gate drivers and bus voltage sensors in motor drive inverters during regenerative braking events. IC Role / Device Role / Timing Role: Fast-response clamping device connected across DC link capacitor to absorb inductive kickback energy. Use Value: Responds in <1 ns to suppress >500 V spikes, maintaining sensor accuracy and avoiding false overvoltage trips in closed-loop control. |
| Telecom Line Interface Protection | Renewable Energy System Surge Mitigation |
|
Use Scenario: Shielding RS-485 transceivers and isolation amplifiers in base station remote radio units exposed to induced lightning surges. IC Role / Device Role / Timing Role: Standoff-rated TVS on differential signal pair (A/B) referenced to local ground plane. Use Value: Maintains 434 V working voltage while clamping common-mode transients to <700 V, preserving signal integrity up to 10 Mbps. |
Use Scenario: Protecting MPPT charge controllers in solar PV string combiner boxes subjected to direct lightning coupling. IC Role / Device Role / Timing Role: Primary clamping element on PV+ input line, coordinated with upstream MOVs and downstream fuses. Use Value: Handles 400 W pulses without degradation, ensuring survivability through multiple Category C3 surges per IEC 61643-31. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ510A | Same VWM/VBR/VC specs but SMB (DO-214AA) package; 10% larger footprint, RθJA = 100 °C/W. | Better thermal performance on limited copper area; requires PCB pad redesign due to wider body (4.58 mm vs. 3.99 mm). | Select when board layout allows larger package and higher continuous power dissipation is needed. |
| 1.5KE510A | Through-hole DO-201AE package; identical electrical specs but 1.5 kW peak power rating (10/1000 µs), higher IPPM (3.3 A). | Designed for legacy through-hole assembly or high-energy surge zones where PCB space permits axial leads. | Choose for prototyping, repair, or high-reliability systems where manual soldering and mechanical robustness are prioritized. |
Compared with SMBJ510A and 1.5KE510A, the P4SMA510A-E3/61 offers optimal balance of compact SMA footprint, automated placement compatibility, and certified surge handling for space-constrained industrial PCBs - without requiring layout changes or sacrificing clamping precision.
Availability
P4SMA510A-E3/61 is available at Aetrix Electronics and suitable for industrial power supply input protection, DC bus overvoltage clamping, telecom line interface protection, and renewable energy system surge mitigation requiring stable component supply and RoHS-compliant sourcing.
Supply support for P4SMA510A-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 and application-specific performance.
The P4SMA Series targets cost-sensitive, high-volume industrial and automotive transient protection needs - delivering standardized 400 W surge capability in compact surface-mount packages with AEC-Q101 and UL recognition options.
FAQ
What is the maximum clamping voltage of the P4SMA510A-E3/61 under standard test conditions?
The P4SMA510A-E3/61 has a maximum clamping voltage (VC) of 698 V at 0.43 A peak pulse current (IPPM) using the 10/1000 µs waveform. This value is measured per Fig. 1 and Table on page 2 of Vishay document 88367, and defines the upper voltage limit imposed on protected circuits during surge events. The P4SMA510A-E3/61 maintains this clamping performance across its full operating temperature range.
Is the P4SMA510A-E3/61 suitable for automotive applications?
The P4SMA510A-E3/61 itself is commercial-grade (E3 suffix), but Vishay offers AEC-Q101-qualified variants under HE3 and HM3 suffixes (e.g., P4SMA510AHE3_B). These automotive versions undergo stress testing per AEC-Q101 and are marked with revision codes (e.g., "B") indicating qualification for engine bay and battery management use. The P4SMA510A-E3/61 is not AEC-Q101 qualified unless ordered with HE3/HM3 suffix.
What does the "-E3/61" suffix indicate in P4SMA510A-E3/61?
The "E3" denotes RoHS-compliant, commercial-grade construction with matte tin-plated leads; "/61" specifies packaging in 7-inch diameter plastic tape and reel containing 1800 units. This ordering code aligns with Vishay's standard delivery format for SMT automation, ensuring compatibility with pick-and-place equipment and JEDEC-standard reel dimensions. The P4SMA510A-E3/61 is shipped ready for high-speed assembly.
How does the thermal resistance of the P4SMA510A-E3/61 affect PCB layout?
The P4SMA510A-E3/61 has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. To maintain TJ ≤ 150 °C under 3.3 W steady-state dissipation, designers must allocate ≥25 mm² of copper per pad and avoid narrow traces. The P4SMA510A-E3/61 thermal performance is optimized for standard FR-4 boards with minimal added copper.
Can the P4SMA510A-E3/61 be used in bidirectional configurations?
No - the P4SMA510A-E3/61 is strictly unidirectional, as confirmed by its "A" suffix (per Vishay's naming convention) and absence of "CA" designation. Bidirectional variants like P4SMA510CA exist but differ in internal structure and clamping symmetry. Using the P4SMA510A-E3/61 in bidirectional applications would result in forward conduction during negative transients, potentially damaging the device or circuit. Always verify polarity marking (cathode band) before placement.
P4SMA510A-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):
- 434V
- Voltage - Breakdown (Min):
- 485V
- Voltage - Clamping (Max) @ Ipp:
- 698V
- Current - Peak Pulse (10/1000µs):
- 430mA
- 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)
P4SMA510A-E3/61 FAQ
1.How can I place an order for P4SMA510A-E3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA510A-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 P4SMA510A-E3/61 reliable?
The price and inventory of P4SMA510A-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 P4SMA510A-E3/61 is usually 5 days.
3.What payment methods are accepted for P4SMA510A-E3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA510A-E3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA510A-E3/61?
P4SMA510A-E3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA510A-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 P4SMA510A-E3/61?
For technical support, including P4SMA510A-E3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA510A-E3/61 requirements.
6.How does Aetrix verify that P4SMA510A-E3/61 is sourced from the original manufacturer or authorized distributors?
All P4SMA510A-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 P4SMA510A-E3/61 meets industry standards.
7.What is the process for return or replacement of P4SMA510A-E3/61?
All P4SMA510A-E3/61 units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA510A-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 P4SMA510A-E3/61 part is unused and in its original packaging.
Return procedure for P4SMA510A-E3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA510A-E3/61 Tags
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