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Vishay General Semiconductor - Diodes Division P4SMA510AHM3_B/H
- Part No.:
- P4SMA510AHM3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA510AHM3_B/H.pdf
- Description:
- TVS DIODE 434VWM 698VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,155
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Product details
Overview
P4SMA510AHM3_B/H 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 1.0 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 automotive ECU input stages.
For engineers reviewing the P4SMA510AHM3_B/H datasheet, P4SMA510AHM3_B/H pinout, P4SMA510AHM3_B/H application, or P4SMA510AHM3_B/H equivalent, key selection criteria include its AEC-Q101 qualification, halogen-free RoHS-compliant construction (HM3 suffix), low thermal resistance (RθJL = 30 °C/W), and suitability for high-energy transient suppression in 400–600 V systems where clamping accuracy and surge reliability are critical.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-band polarity marking, designed to shunt transient energy above its standoff voltage (VWM = 434 V) while maintaining low leakage (<1 µA at VWM). Its glass-passivated junction ensures stable breakdown characteristics and fast response time (<1 ns).
The device complies with MSL Level 1 per J-STD-020, supports peak forward surge current of 40 A (8.3 ms half-sine), and features a maximum junction temperature of +150 °C. Its thermal resistance (RθJA = 120 °C/W) is specified on 0.2" × 0.2" copper pads, enabling predictable derating in real PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 485 V / 535 V at 1.0 mA - defines precise clamping onset threshold under standardized test conditions |
| VWM | 434 V - maximum continuous reverse operating voltage before significant leakage begins |
| VC @ IPPM | 698 V at 0.43 A - clamped voltage during 10/1000 µs surge, directly limiting downstream component stress |
| PPPM | 400 W - peak pulse power handling capability, validated per REA-defined 10/1000 µs waveform |
| IFSM | 40 A - single half-sine surge rating (8.3 ms), supporting inrush and fault-current events |
| TJ max | +150 °C - enables operation in under-hood automotive and high-ambient industrial environments |
| Package | SMA (DO-214AC) - industry-standard SMD outline with 5.0 mm × 5.0 mm thermal pad footprint |
Pinout & Package
SMA (DO-214AC) package: molded epoxy case with matte tin-plated leads, UL 94 V-0 rated, MSL Level 1, compatible with standard reflow profiles up to 260 °C peak.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to system ground or return path; forms current loop during clamping |
| Cathode | High-side transient sensing node | Marked with band; connects to protected line (e.g., 48 V–600 V rail); conducts when VAK > VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements including HTOL, TCT, and ESD |
| Halogen-free & RoHS-compliant (HM3) | Meets environmental compliance mandates without compromising surge performance or thermal stability |
| Glass passivated junction | Ensures long-term parameter stability and reduced parameter drift across temperature and lifetime |
| Low incremental surge resistance | Minimizes voltage overshoot during fast transients, improving protection margin for downstream ICs |
| 400 W peak pulse power (10/1000 µs) | Supports IEC 61000-4-5 Level 4 surge immunity testing in high-voltage industrial interfaces |
Applications
| Industrial Power Input Protection | Automotive Body Control Module (BCM) Inputs |
|---|---|
Use Scenario: Protection of 400–600 V DC input stages in programmable logic controllers (PLCs) and motor drives against load dump and inductive switching spikes. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between HV rail and ground, activated within <1 ns to limit transient overvoltage. Use Value: Prevents damage to upstream rectifiers and downstream DC-DC controllers by clamping surges to ≤698 V at 0.43 A. |
Use Scenario: Input protection for 24 V/48 V supply lines feeding BCM microcontrollers and CAN transceivers in commercial vehicles. IC Role / Device Role / Timing Role: Standoff-rated TVS absorbing ISO 7637-2 Pulse 5a/b energy without degradation over 1000+ cycles. Use Value: Maintains functional safety integrity by preventing latch-up or burnout in 150 °C under-hood environments. |
| Telecom Central Office Power Feeds | Renewable Energy Inverter DC Link Monitoring |
Use Scenario: Surge suppression on -48 V or +24 V telecom power distribution boards exposed to lightning-induced surges on long-line feeds. IC Role / Device Role / Timing Role: Primary clamping element in multi-stage protection network, coordinating with GDTs and MOVs. Use Value: Provides precise VWM = 434 V margin above nominal rail, minimizing standby leakage while enabling fast response. |
Use Scenario: Overvoltage guard on DC link voltage sense inputs of solar inverters operating up to 1000 V bus. IC Role / Device Role / Timing Role: High-VBR TVS protecting precision ADC front-end from transients during grid fault recovery. Use Value: Enables reliable monitoring at 510 V nominal with ±25 V tolerance, avoiding false trip or sensor saturation. |
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); lower PPPM = 600 W, higher IPPM = 0.65 A | Higher surge current capacity; larger footprint (4.6 mm × 3.9 mm vs. SMA's 4.5 mm × 2.8 mm) | Select when board space allows larger package and higher single-pulse current handling is required |
| SMCJ510A | Same VBR, but SMC package (DO-214AB); PPPM = 1500 W, IPPM = 1.9 A, RθJA = 15 °C/W | Designed for high-energy industrial surges; requires larger thermal pad and layout area | Choose for mission-critical 1500 W surge duty cycles where P4SMA510AHM3_B/H's 400 W rating is insufficient |
Compared with SMBJ510A and SMCJ510A, the P4SMA510AHM3_B/H delivers AEC-Q101 qualification and halogen-free construction in the smallest footprint among 510 V TVS diodes, making it optimal for space-constrained automotive and industrial modules requiring certified reliability without thermal derating penalties.
Availability
P4SMA510AHM3_B/H is available at Aetrix Electronics and suitable for industrial power supplies, automotive body control units, telecom power distribution, and renewable energy inverters requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for P4SMA510AHM3_B/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 diodes, MOSFETs, optoelectronics, and passive components with emphasis on reliability, efficiency, and application-specific optimization.
The P4SMA Series is engineered for high-reliability transient suppression in harsh environments, targeting automotive, industrial, and telecom applications where AEC-Q101 qualification, thermal robustness, and precise clamping are mandatory design requirements.
FAQ
What is the standoff voltage (VWM) of the P4SMA510AHM3_B/H?
The P4SMA510AHM3_B/H has a maximum working standoff voltage (VWM) of 434 V, meaning it remains non-conductive under continuous reverse bias up to this level with leakage current limited to ≤1 µA. This value ensures compatibility with 400–450 V DC systems while providing sufficient margin below its 485 V minimum breakdown voltage. The P4SMA510AHM3_B/H maintains this rating across its full operating temperature range (−65 °C to +150 °C).
Is the P4SMA510AHM3_B/H AEC-Q101 qualified?
Yes, the P4SMA510AHM3_B/H is AEC-Q101 qualified, as confirmed by its HM3 suffix and documentation in Vishay's P4SMA series datasheet (Document Number 88367, Revision 09-Jan-2024). This qualification covers stress tests including high-temperature operating life, temperature cycling, and electrostatic discharge, validating its use in automotive electronic control units and body electronics. The P4SMA510AHM3_B/H meets all applicable AEC-Q101 requirements for unidirectional TVS diodes.
What does the "HM3" suffix indicate in P4SMA510AHM3_B/H?
The "HM3" suffix in P4SMA510AHM3_B/H denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. Specifically, "H" indicates the packaging format (7" tape and reel), "M" confirms halogen-free molding compound, and "3" signifies RoHS compliance per EU Directive 2011/65/EU. This distinguishes it from E3 (RoHS only) and HE3 (AEC-Q101 + RoHS) variants. The P4SMA510AHM3_B/H thus satisfies both environmental and automotive reliability standards in one package.
What is the clamping voltage (VC) of the P4SMA510AHM3_B/H at its rated peak pulse current?
The P4SMA510AHM3_B/H clamps to a maximum voltage of 698 V when subjected to its rated peak pulse current of 0.43 A under the standard 10/1000 µs waveform. This VC value is measured at the device terminals and represents the upper voltage limit imposed on protected circuitry during surge events. The P4SMA510AHM3_B/H achieves this clamping performance while maintaining low incremental resistance, ensuring predictable energy dissipation without oscillation or secondary breakdown.
Can the P4SMA510AHM3_B/H be used in bidirectional configurations?
No, the P4SMA510AHM3_B/H is a unidirectional TVS diode, as indicated by its "A" suffix and cathode-band marking. Bidirectional variants in the P4SMA family use the "CA" suffix (e.g., P4SMA510CA) and lack polarity marking. Using the P4SMA510AHM3_B/H in reverse-biased AC applications would result in forward conduction and potential failure. For bidirectional protection at 510 V, select the P4SMA510CA or equivalent rated part instead of the P4SMA510AHM3_B/H.
P4SMA510AHM3_B/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:
- Active
- 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:
- -
- 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_B/H FAQ
1.How can I place an order for P4SMA510AHM3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA510AHM3_B/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 P4SMA510AHM3_B/H reliable?
The price and inventory of P4SMA510AHM3_B/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA510AHM3_B/H is usually 5 days.
3.What payment methods are accepted for P4SMA510AHM3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA510AHM3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA510AHM3_B/H?
P4SMA510AHM3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA510AHM3_B/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 P4SMA510AHM3_B/H?
For technical support, including P4SMA510AHM3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA510AHM3_B/H requirements.
6.How does Aetrix verify that P4SMA510AHM3_B/H is sourced from the original manufacturer or authorized distributors?
All P4SMA510AHM3_B/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 P4SMA510AHM3_B/H meets industry standards.
7.What is the process for return or replacement of P4SMA510AHM3_B/H?
All P4SMA510AHM3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA510AHM3_B/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 P4SMA510AHM3_B/H part is unused and in its original packaging.
Return procedure for P4SMA510AHM3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA510AHM3_B/H Tags
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