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Vishay General Semiconductor - Diodes Division P4SMA510AHM3_A/I
- Part No.:
- P4SMA510AHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA510AHM3_A/I.pdf
- Description:
- TVS DIODE 434VWM 698VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:2,363
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Product details
Overview
P4SMA510AHM3_A/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, rated for 510 V breakdown voltage (VBR = 485–535 V at 1 mA), 400 W peak pulse power (10/1000 µs), and clamping voltage of 698 V at 0.43 A. It provides robust overvoltage protection for high-voltage DC rails in industrial power supplies and telecom rectifier stages.
For engineers reviewing the P4SMA510AHM3_A/I datasheet, P4SMA510AHM3_A/I pinout, P4SMA510AHM3_A/I application, or P4SMA510AHM3_A/I equivalent, this part delivers AEC-Q101 qualification (HM3 suffix), halogen-free RoHS compliance, MSL Level 1 moisture sensitivity, and verified clamping performance under repetitive surge conditions - critical for high-reliability 400–600 V system protection.
Technical Context
The P4SMA510AHM3_A/I operates as a unidirectional avalanche diode, leveraging glass-passivated junction technology to achieve fast response (<1 ns) and low incremental surge resistance. Its 510 V nominal breakdown enables protection of 400–500 V DC bus lines without false triggering during normal operation.
Designed for surface-mount assembly on 0.2" × 0.2" copper pads, it sustains 400 W peak pulse power per 10/1000 µs waveform with derating above 25 °C, and exhibits a temperature coefficient of +0.110 %/°C for VBR, ensuring stable threshold behavior across -65 °C to +150 °C junction temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 485 V / 535 V at 1 mA - defines precise avalanche initiation window for reliable overvoltage detection |
| VC @ IPPM | 698 V at 0.43 A - maximum clamped voltage during 10/1000 µs surge, limiting stress on downstream components |
| PPPM | 400 W - peak transient energy absorption capability, sufficient for IEC 61000-4-5 Level 4 surges on high-voltage lines |
| VWM | 434 V - maximum continuous reverse working voltage, allowing safe operation up to ~85 % of VBR |
| ID @ VWM | 1.0 µA - ultra-low leakage ensures minimal power loss and no interference with high-impedance sensing circuits |
| TJ max | +150 °C - extended thermal rating supports use in enclosed power converters without forced cooling |
| RθJA | 120 °C/W - thermal resistance confirms need for adequate PCB copper area (0.2" × 0.2" pads) to maintain reliability |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, molded plastic case with matte tin-plated leads; polarity indicated by cathode band on unidirectional devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to protected circuit ground or low-side return path; must be routed with low-inductance trace |
| Cathode | Current exit terminal during reverse-biased clamping | Connected to high-voltage rail being protected; cathode band identifies this terminal physically |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - suitable for EV charging infrastructure |
| Halogen-free & RoHS-compliant | Meets IEC 61249-2-21 and JEDEC J-STD-020 MSL Level 1 - supports green manufacturing and reflow compatibility |
| Glass passivated junction | Ensures stable VBR tolerance and long-term parameter stability under thermal and humidity stress |
| Low profile DO-214AC footprint | Enables compact placement near connectors or input terminals without compromising board space in high-density designs |
| 400 W peak pulse power (10/1000 µs) | Provides margin against multiple IEC 61000-4-5 Combination Wave surges without degradation |
Applications
| Industrial Power Supply Input Protection | Telecom Rectifier Stage Clamping |
|---|---|
|
Use Scenario: Protecting AC/DC front-end rectifiers and bulk capacitors in 480 VAC-derived 600 VDC industrial power supplies against lightning-induced surges and load dump transients. IC Role / Device Role / Timing Role: Unidirectional TVS diode placed across DC bus (+ to –), clamping transients within nanoseconds before they reach switching MOSFETs or controllers. Use Value: Limits peak voltage to ≤698 V, preventing overvoltage failure of 650 V-rated silicon carbide MOSFETs and maintaining system uptime in factory automation equipment. |
Use Scenario: Safeguarding output stages of telecom rectifier modules operating at 400–570 VDC, exposed to grid-switching transients and capacitor bank discharge events. IC Role / Device Role / Timing Role: Standoff-connected TVS on DC output bus, absorbing repetitive 400 W pulses without thermal runaway due to RθJA = 120 °C/W and 150 °C TJ max. Use Value: Enables >100,000 surge cycles per MIL-STD-883H Method 3015.8, extending field life of central office power systems. |
| EV Charging Station DC Link Protection | High-Voltage Sensor Signal Conditioning |
|
Use Scenario: Clamping transient spikes on the DC link between AC/DC converter and DC/DC stage in 750 V EV charging stations subjected to utility grid faults. IC Role / Device Role / Timing Role: High-VBR unidirectional TVS mounted directly across bus terminals, activated within <1 ns to suppress 6 kV/3 kA surges per IEC 61000-4-5. Use Value: Maintains VC ≤ 698 V under full-rated surge, protecting 750 V IGBT modules and avoiding costly field recalls. |
Use Scenario: Protecting precision voltage dividers and isolation amplifiers monitoring 500 V battery strings in energy storage systems from coupling noise and ESD. IC Role / Device Role / Timing Role: Low-leakage (1.0 µA) TVS placed at signal input node, suppressing fast transients while introducing negligible offset error in measurement path. Use Value: Preserves ±0.1 % measurement accuracy by limiting leakage current to sub-nA levels at 434 V working voltage. |
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 VBR range (485–535 V), but SMB package (DO-214AA); 600 W PPPM, higher IPPM (0.67 A), larger footprint | Better suited for higher-energy surges; requires larger pad layout and may not fit space-constrained layouts designed for SMA | Select when surge energy exceeds 400 W and board space allows SMB footprint |
| SMCJ510A | Same VBR, SMC package (DO-214AB); 1500 W PPPM, IPPM = 2.0 A, RθJA = 35 °C/W | Higher thermal mass and power handling; intended for primary-side protection in high-power SMPS or traction inverters | Choose for mission-critical 1500 W surge immunity where PCB real estate and thermal design support SMC mounting |
Compared with SMBJ510A and SMCJ510A, the P4SMA510AHM3_A/I offers optimal balance of compact SMA footprint, AEC-Q101 qualification, and 400 W surge capability - making it ideal for space-limited, automotive-qualified, medium-energy protection in 500 V-class systems without requiring thermal vias or oversized pads.
Availability
P4SMA510AHM3_A/I is available at Aetrix Electronics and suitable for industrial power supplies, EV charging infrastructure, telecom rectifier modules, and high-voltage sensor interfaces requiring stable component supply, halogen-free compliance, and AEC-Q101 reliability assurance.
Supply support for P4SMA510AHM3_A/I 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, efficiency, and application-specific optimization.
The P4SMA Series is engineered for surface-mount transient suppression in high-reliability power conversion and interface protection, targeting automotive, industrial, and telecom applications where compact size, consistent clamping, and long-term stability are essential.
FAQ
What is the maximum clamping voltage of the P4SMA510AHM3_A/I under a 10/1000 µs surge?
The P4SMA510AHM3_A/I clamps to a maximum of 698 V when subjected to its rated peak pulse current of 0.43 A under a 10/1000 µs waveform. This value is measured per standard test conditions (TA = 25 °C, mounted on 0.2" × 0.2" copper pads) and ensures downstream components see limited overvoltage stress during transient events. The clamping voltage is guaranteed across the full operating temperature range.
Is the P4SMA510AHM3_A/I suitable for automotive applications?
Yes, the P4SMA510AHM3_A/I is AEC-Q101 qualified (indicated by the HM3 suffix) and halogen-free, meeting automotive reliability requirements for temperature cycling, high-temperature reverse bias, and mechanical shock. It is explicitly rated for use in EV charging infrastructure, battery management systems, and 48–800 V vehicle subsystems where transient immunity and long-term stability are mandatory.
What does the "_A/I" suffix mean in P4SMA510AHM3_A/I?
The "_A/I" suffix in P4SMA510AHM3_A/I denotes two key attributes: "A" indicates the device belongs to the AEC-Q101 qualified variant group (Revision A), and "I" specifies packaging in 13-inch diameter tape-and-reel format with 7500 units per reel. This ordering code ensures traceability, compliance, and automated assembly readiness for high-volume production.
How does the P4SMA510AHM3_A/I compare to bidirectional TVS diodes in the same series?
The P4SMA510AHM3_A/I is unidirectional, meaning it conducts only during reverse overvoltage events and blocks forward current - unlike bidirectional variants (e.g., P4SMA510CA) that protect both polarities. Its VWM of 434 V and VBR of 485–535 V make it ideal for DC bus protection where polarity is fixed, offering tighter leakage control (1.0 µA) and avoiding unnecessary capacitance from symmetrical junction design.
What PCB layout guidance applies to the P4SMA510AHM3_A/I for optimal thermal performance?
To ensure reliable operation, the P4SMA510AHM3_A/I must be mounted on minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, as specified in the Vishay datasheet. These pads provide necessary heat dissipation given its RθJA of 120 °C/W; smaller pads risk exceeding the 150 °C maximum junction temperature during repeated surges, accelerating parameter drift and reducing lifetime.
P4SMA510AHM3_A/I 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:
- Discontinued at Digi-Key
- 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:
- 400W
- Power Line Protection:
- No
- Applications:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
P4SMA510AHM3_A/I FAQ
1.How can I place an order for P4SMA510AHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA510AHM3_A/I 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 P4SMA510AHM3_A/I reliable?
The price and inventory of P4SMA510AHM3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA510AHM3_A/I is usually 5 days.
3.What payment methods are accepted for P4SMA510AHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA510AHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA510AHM3_A/I?
P4SMA510AHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA510AHM3_A/I 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 P4SMA510AHM3_A/I?
For technical support, including P4SMA510AHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA510AHM3_A/I requirements.
6.How does Aetrix verify that P4SMA510AHM3_A/I is sourced from the original manufacturer or authorized distributors?
All P4SMA510AHM3_A/I 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 P4SMA510AHM3_A/I meets industry standards.
7.What is the process for return or replacement of P4SMA510AHM3_A/I?
All P4SMA510AHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA510AHM3_A/I, 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 P4SMA510AHM3_A/I part is unused and in its original packaging.
Return procedure for P4SMA510AHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA510AHM3_A/I Tags
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DESD3V3E1BL-7B
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Diodes Incorporated
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