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Vishay General Semiconductor - Diodes Division P4SMA510AHE3_A/H
- Part No.:
- P4SMA510AHE3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA510AHE3_A/H.pdf
- Description:
- TVS DIODE 434VWM 698VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:5,469
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Product details
Overview
P4SMA510AHE3_A/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) in the SMA (DO-214AC) package, designed for robust overvoltage protection of sensitive electronics. It features a 485 V minimum breakdown voltage (VBR), 434 V maximum standoff voltage (VWM), and clamps transients to ≤698 V at 0.43 A peak pulse current (IPPM) under 10/1000 µs waveform - ideal for safeguarding power rails and signal lines in industrial motor drives and telecom infrastructure.
For engineers reviewing the P4SMA510AHE3_A/H datasheet, P4SMA510AHE3_A/H pinout, P4SMA510AHE3_A/H application, or P4SMA510AHE3_A/H equivalent, this device delivers AEC-Q101 qualification, 400 W peak pulse power capability, low incremental surge resistance, and MSL Level 1 moisture sensitivity - critical for automotive-grade reliability and high-reliability industrial deployments requiring validated transient immunity.
Technical Context
The P4SMA510AHE3_A/H operates as a unidirectional clamping diode with avalanche breakdown behavior, optimized for fast response (<1 ns) to ESD and lightning-induced surges. Its glass-passivated junction ensures stable VBR tolerance (±5%) and low leakage (<1 µA at VWM), while thermal resistance (RθJA = 120 °C/W) supports operation up to +150 °C junction temperature.
Designed for surface-mount assembly on standard 0.2" × 0.2" copper pads, it meets J-STD-020 MSL Level 1 and JESD201 Class 2 whisker resistance requirements. The cathode band marking enables unambiguous polarity identification during automated placement - essential for high-volume manufacturing of protected DC power inputs and I/O interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 485 V / 535 V at 1 mA test current - defines precise avalanche onset threshold for repeatable clamping |
| VWM | 434 V maximum - ensures no conduction during normal 400 V AC-derived DC rail operation |
| VC @ IPPM | ≤698 V at 0.43 A (10/1000 µs) - limits downstream voltage stress during surge events |
| PPPM | 400 W peak pulse power - sustains transient energy without failure under standardized surge testing |
| IFSM | 40 A peak forward surge (8.3 ms half-sine) - handles inrush or fault currents in power supply inputs |
| TJ max | +150 °C - enables use in under-hood automotive and high-temperature industrial enclosures |
| AEC-Q101 | Qualified - validated for automotive electronic modules requiring long-term reliability under thermal cycling and vibration |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD22-B102. Cathode identified by black band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias | Connected to system ground or low-side return path during clamping |
| Cathode | Current exit terminal in forward bias; marked with band | Connected to protected line (e.g., +400 V DC rail) - absorbs surge toward ground |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive powertrain and body electronics - supports PPAP and long-term field reliability |
| Glass passivated junction | Ensures stable VBR over temperature and lifetime, minimizing drift in high-voltage protection thresholds |
| MSL Level 1 rating | Enables direct placement without baking - reduces manufacturing cost and process complexity |
| 400 W peak pulse power | Withstands IEC 61000-4-5 Level 4 surges (4 kV line-earth) on properly decoupled 400 V systems |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients (e.g., relay coil flyback) |
Applications
| Industrial Motor Drives | Telecom Power Supplies |
|---|---|
|
Use Scenario: Protection of rectified 380–480 V AC input stages against switching transients and load dump events. IC Role / Device Role / Timing Role: Unidirectional TVS placed across bulk capacitor to clamp overvoltage spikes before they reach PFC controller or DC-link capacitors. Use Value: Prevents catastrophic failure of 600 V-rated MOSFETs and electrolytic capacitors during 400 V DC bus operation. |
Use Scenario: Surge suppression on -48 V DC distribution rails in central office equipment exposed to lightning-induced coupling. IC Role / Device Role / Timing Role: Standoff-mode protector on secondary-side power outputs, activated only during >434 V transients. Use Value: Maintains <1 µA leakage at nominal -48 V, eliminating standby power loss while enabling 698 V clamping ceiling. |
| Automotive Onboard Chargers | Renewable Energy Inverters |
|
Use Scenario: DC-link protection in bidirectional OBCs handling 400 V battery systems during regenerative braking voltage spikes. IC Role / Device Role / Timing Role: Primary clamping element on high-side DC bus, coordinated with MOVs for multi-stage protection. Use Value: AEC-Q101 qualification ensures compliance with ISO 16750-2 pulse 5a/b testing for automotive-grade durability. |
Use Scenario: Overvoltage guard for PV string combiner boxes interfacing with 1000 V DC solar arrays. IC Role / Device Role / Timing Role: Fast-response backup to primary SPDs, absorbing residual high-frequency components after MOV clamping. Use Value: 1 ns response time captures fast-edge transients missed by slower thermal protectors, reducing system downtime risk. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ510A | Same VWM/VBR range but rated for 400 W at 25 °C only (derates faster above 25 °C); RθJA = 135 °C/W vs. 120 °C/W | Lacks AEC-Q101 qualification; not approved for automotive under-hood use | Select when cost sensitivity outweighs automotive qualification needs and thermal margin is sufficient |
| 1.5SMC510A | Higher package thermal mass (SMC/DO-214AB); same electrical specs but 1.5× larger footprint and 2.5× higher weight | Better heat dissipation in free-air conditions but incompatible with dense SMA layouts | Choose only if board space allows larger footprint and higher IPPM derating margin is required |
Compared with SMAJ510A and 1.5SMC510A, the P4SMA510AHE3_A/H provides superior thermal performance in compact layouts and certified automotive reliability - making it the preferred choice for space-constrained, high-temperature, and safety-critical 400 V+ protection zones.
Availability
P4SMA510AHE3_A/H is available at Aetrix Electronics and suitable for industrial motor drives, telecom power supplies, automotive onboard chargers, and renewable energy inverters requiring stable component supply, AEC-Q101 validation, and consistent surge immunity performance across production batches.
Supply support for P4SMA510AHE3_A/H 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 high-reliability diodes, MOSFETs, and passive components for demanding industrial, automotive, and computing applications.
The P4SMA Series is engineered for surface-mount transient voltage suppression in high-voltage DC systems - targeting applications where precision clamping, low leakage, and automotive-grade qualification are mandatory design requirements.
FAQ
What is the maximum clamping voltage of the P4SMA510AHE3_A/H under standard surge conditions?
The P4SMA510AHE3_A/H clamps to a maximum of 698 V when subjected to a 10/1000 µs waveform at its rated peak pulse current of 0.43 A. This value is measured per IEC 61000-4-5 test methodology and reflects worst-case voltage seen by downstream circuitry during surge events. The P4SMA510AHE3_A/H maintains this clamping performance across its full operating temperature range (-65 °C to +150 °C).
Is the P4SMA510AHE3_A/H suitable for automotive applications?
Yes, the P4SMA510AHE3_A/H is AEC-Q101 qualified and specifically designated for automotive use via the "HE3" suffix and revision code "_A/H". It has passed stress tests including temperature cycling, humidity bias, and mechanical shock - confirming suitability for engine control units, onboard chargers, and ADAS power domains where transient immunity must meet ISO 16750-2 requirements.
What does the "HE3" and "_A/H" suffix indicate in P4SMA510AHE3_A/H?
The "HE3" denotes RoHS-compliant and AEC-Q101 qualified construction, while "_A/H" specifies revision level "A" and packaging in 7-inch tape-and-reel format (H = 1800 pcs/reel). This ordering code ensures traceability to Vishay's qualified automotive production lot and guarantees compliance with JESD201 Class 2 whisker resistance and J-STD-020 MSL Level 1 handling requirements.
How does the P4SMA510AHE3_A/H compare to bidirectional TVS diodes in high-voltage protection?
The P4SMA510AHE3_A/H is unidirectional and intended for DC circuits with defined polarity - offering lower leakage (<1 µA at 434 V) and tighter VBR tolerance than equivalent bidirectional parts. Unlike bidirectional devices (e.g., P4SMA510CA), it cannot protect AC lines but delivers superior clamping consistency and thermal stability in 400 V+ DC applications such as solar inverters and EV chargers.
What PCB layout guidance applies to the P4SMA510AHE3_A/H for optimal surge performance?
Mount the P4SMA510AHE3_A/H on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal to achieve rated 400 W pulse power. Minimize trace inductance between the device and protected node - keep cathode-to-rail and anode-to-ground paths short and wide. Avoid vias in high-current surge paths, and ensure thermal relief is minimized to maintain low RθJA and prevent localized overheating during repetitive transients.
P4SMA510AHE3_A/H 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
P4SMA510AHE3_A/H FAQ
1.How can I place an order for P4SMA510AHE3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA510AHE3_A/H 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 P4SMA510AHE3_A/H reliable?
The price and inventory of P4SMA510AHE3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA510AHE3_A/H is usually 5 days.
3.What payment methods are accepted for P4SMA510AHE3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA510AHE3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA510AHE3_A/H?
P4SMA510AHE3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA510AHE3_A/H 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 P4SMA510AHE3_A/H?
For technical support, including P4SMA510AHE3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA510AHE3_A/H requirements.
6.How does Aetrix verify that P4SMA510AHE3_A/H is sourced from the original manufacturer or authorized distributors?
All P4SMA510AHE3_A/H 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 P4SMA510AHE3_A/H meets industry standards.
7.What is the process for return or replacement of P4SMA510AHE3_A/H?
All P4SMA510AHE3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA510AHE3_A/H, 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 P4SMA510AHE3_A/H part is unused and in its original packaging.
Return procedure for P4SMA510AHE3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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