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Vishay General Semiconductor - Diodes Division P4SMA510AHE3_AIH
- Part No.:
- P4SMA510AHE3_AIH
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA510AHE3_AIH.pdf
- Description:
- TVS DIODE 434VWM 698VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:6,515
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Product details
Overview
P4SMA510AHE3_AIH from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the P4SMA series, designed for high-energy surge protection on power and signal lines. It features a 510 V breakdown voltage (VBR = 485–535 V at 1 mA), 400 W peak pulse power (10/1000 µs), clamping voltage of 698 V at 0.43 A, and AEC-Q101 qualification for automotive applications - used to protect MOSFETs, DC-DC converters, and industrial sensor interfaces against lightning-induced transients and inductive switching spikes.
For engineers reviewing the P4SMA510AHE3_AIH datasheet, P4SMA510AHE3_AIH pinout, P4SMA510AHE3_AIH application, or P4SMA510AHE3_AIH equivalent, this page delivers verified electrical parameters, package geometry, clamping behavior under surge conditions, thermal derating curves, and validated automotive-grade alternatives - all aligned with Vishay Document #88367 (Rev. 09-Jan-2024).
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-band polarity marking, leveraging glass-passivated junction technology for stable avalanche response and low incremental surge resistance. Its 10/1000 µs waveform rating applies at TA = 25 °C on 0.2" × 0.2" copper pads, with thermal resistance RθJA = 120 °C/W and RθJL = 30 °C/W.
The device meets MSL Level 1 per J-STD-020 (peak reflow ≤ 260 °C), supports 40 A IFSM (8.3 ms half-sine), and exhibits a temperature coefficient of VBR = +0.110 %/°C - enabling predictable voltage shift across -65 °C to +150 °C operating range without derating below 25 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 485 V / 535 V at 1 mA - defines precise avalanche onset window for repeatable clamping threshold selection |
| VWM | 434 V - maximum continuous reverse working voltage before leakage exceeds 1 µA; sets safe DC bias margin |
| VC @ IPPM | 698 V at 0.43 A - clamped voltage during 400 W transient; determines protected circuit's maximum overvoltage exposure |
| PPPM | 400 W (10/1000 µs) - peak surge energy handling capacity; validates suitability for IEC 61000-4-5 Level 4 compliance testing |
| IFSM | 40 A (8.3 ms half-sine) - forward surge current rating; supports robustness against accidental reverse-bias faults or start-up surges |
| TJ max. | +150 °C - maximum junction temperature; enables operation in under-hood automotive environments without active cooling |
| Package | SMA (DO-214AC) - standardized surface-mount outline with 5.28 mm × 4.50 mm footprint and 2.29 mm height; compatible with automated pick-and-place |
Pinout & Package
SMA (DO-214AC) package: molded epoxy case with matte tin-plated leads, UL 94 V-0 rated, polarity indicated by cathode band on unidirectional devices. Dimensions: 5.28 mm × 4.50 mm × 2.29 mm (L × W × H); mounting pad layout per Vishay spec requires 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward conduction mode | Connects to lower-potential side of protected line; enables low-VF (3.5 V @ 25 A) path during fault |
| Cathode | Current exit point in forward conduction; avalanche node in reverse bias | Marked with band; connects to higher-potential rail; defines clamping reference for transient suppression |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive electronics per stress test requirements - ensures reliability in engine control units and ADAS power rails |
| 400 W peak pulse power | Handles IEC 61000-4-5 combination wave surges up to 4 kV/2 Ω without degradation; supports >1000 surge events at rated duty cycle |
| Glass passivated junction | Eliminates surface leakage paths and improves long-term stability of VBR under humidity and thermal cycling |
| MSL Level 1 | Compatible with standard SMT reflow profiles up to 260 °C peak - no pre-baking required prior to assembly |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (<1 ns rise time), improving protection margin for sensitive gate drivers |
Applications
| Automotive Power Rail Protection | Industrial DC-DC Converter Input |
|---|---|
|
Use Scenario: Suppressing load-dump transients (up to 120 V) and alternator ripple on 48 V battery-fed ECUs in commercial vehicles. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery rail and DC-DC input stage to clamp surges before LDOs or controllers. Use Value: Withstands 400 W pulses while limiting clamped voltage to 698 V - prevents damage to 75 V-rated input capacitors and MOSFETs. |
Use Scenario: Protecting isolated flyback or buck-boost converter inputs from EFT bursts and inductive kickback in factory automation PLCs. IC Role / Device Role / Timing Role: Standoff device across primary-side bulk capacitor to absorb repetitive 10/1000 µs surges induced by relay contactors. Use Value: 434 V VWM provides 10 % margin above nominal 380–400 V DC bus, ensuring zero leakage current during steady-state operation. |
| Telecom Line Interface Protection | High-Voltage Sensor Signal Conditioning |
|
Use Scenario: Shielding RS-485 transceivers and Ethernet PHYs connected to outdoor infrastructure from lightning-induced common-mode surges. IC Role / Device Role / Timing Role: Paired unidirectional TVS on each differential line (A/B) referenced to chassis ground, upstream of common-mode chokes. Use Value: 698 V clamping voltage preserves integrity of 600 V isolation barriers in telecom interface ICs without compromising creepage distance. |
Use Scenario: Safeguarding precision ADC front-ends measuring 300–500 V DC bus voltages in EV battery management systems. IC Role / Device Role / Timing Role: High-VBR TVS placed across voltage divider output to prevent overvoltage damage to 5 V ADC inputs during fault conditions. Use Value: 485–535 V VBR range aligns with 500 V system design, enabling accurate scaling while maintaining >100 V headroom before clamping. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ510AHE3/5A | Same VBR range (485–535 V), but SMB package (DO-214AA) - 50 % larger footprint, 600 W PPPM, RθJA = 100 °C/W | Better thermal performance and higher surge rating; suited for space-tolerant industrial designs with heatsinking capability | Select when board layout allows larger pad area and higher surge immunity (e.g., solar inverter DC link) is required |
| SMCJ510AHE3/5A | Same VBR, but SMC package (DO-214AB) - 1000 W PPPM, RθJA = 65 °C/W, 10× larger body than SMA | Designed for primary-side surge arrest in AC/DC front-ends and motor drives where PCB real estate permits | Choose for mission-critical 1000 W surge handling where P4SMA510AHE3_AIH's 400 W is insufficient |
Compared with P4SMA510AHE3_AIH, SMBJ510AHE3/5A offers higher surge capacity in a moderately larger package, while SMCJ510AHE3/5A delivers triple the peak power in a significantly larger footprint - both retain identical VBR and AEC-Q101 qualification, making them scalable alternatives rather than drop-in replacements.
Availability
P4SMA510AHE3_AIH is available at Aetrix Electronics and suitable for automotive ECU protection, industrial DC-DC converter input stages, and high-voltage sensor signal conditioning requiring stable component supply, AEC-Q101 traceability, and RoHS-compliant manufacturing.
Supply support for P4SMA510AHE3_AIH 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, and protection devices with emphasis on reliability, automotive qualification, and high-power density packaging.
The P4SMA series was developed for cost-effective, surface-mount transient suppression in space-constrained automotive and industrial applications - delivering AEC-Q101 compliance and 400 W surge capability in the compact SMA (DO-214AC) package.
FAQ
What is the maximum clamping voltage of P4SMA510AHE3_AIH at its rated peak pulse current?
The P4SMA510AHE3_AIH has a maximum clamping voltage (VC) of 698 V at its rated peak pulse current of 0.43 A (10/1000 µs waveform). This value is measured under standard test conditions per Vishay Document #88367 and defines the upper voltage limit imposed on protected circuits during surge events. The P4SMA510AHE3_AIH maintains this clamping performance across its full operating temperature range when mounted on specified 0.2" × 0.2" copper pads.
Is P4SMA510AHE3_AIH suitable for automotive applications?
Yes, P4SMA510AHE3_AIH is AEC-Q101 qualified and carries the "HE3" suffix indicating RoHS-compliant, automotive-grade construction. It is specifically intended for use in engine control units, battery management systems, and ADAS power supplies where reliability under thermal cycling, vibration, and high-energy transients is mandatory. The P4SMA510AHE3_AIH meets MSL Level 1 and supports reflow soldering up to 260 °C without preconditioning.
What does the "_AIH" suffix indicate in P4SMA510AHE3_AIH?
The "_AIH" suffix in P4SMA510AHE3_AIH denotes the packaging configuration: "A" indicates the revision level (Revision A), "I" specifies 13-inch tape-and-reel delivery (7500 units per reel), and "H" identifies the 7-inch tape-and-reel option (1800 units per reel). The "HE3" portion confirms RoHS compliance and AEC-Q101 qualification. This ordering code follows Vishay's standardized nomenclature for the P4SMA series as defined in Document #88367.
How does the thermal resistance of P4SMA510AHE3_AIH affect its surge handling capability?
P4SMA510AHE3_AIH has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W and junction-to-lead (RθJL) of 30 °C/W. These values directly impact its ability to dissipate heat during repetitive surges: at ambient temperatures above 25 °C, its 400 W peak pulse rating must be derated per Figure 2 in Vishay Document #88367. For example, at TA = 75 °C, P4SMA510AHE3_AIH's usable PPPM drops to ~280 W - a critical consideration for under-hood automotive deployments.
Can P4SMA510AHE3_AIH be used in bidirectional configurations?
No, P4SMA510AHE3_AIH is a unidirectional TVS diode, as confirmed by its part number ending in "A" (not "CA") and explicit designation in Vishay Document #88367. Bidirectional variants in the same voltage range use the "CA" suffix (e.g., P4SMA510CA). Using P4SMA510AHE3_AIH in bidirectional applications would result in forward conduction during negative transients, potentially damaging downstream circuitry. Always verify polarity marking (cathode band) and select CA-suffixed parts for AC or dual-polarity protection.
P4SMA510AHE3_AIH 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:
- 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_AIH FAQ
1.How can I place an order for P4SMA510AHE3_AIH through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA510AHE3_AIH 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_AIH reliable?
The price and inventory of P4SMA510AHE3_AIH are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA510AHE3_AIH is usually 5 days.
3.What payment methods are accepted for P4SMA510AHE3_AIH?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA510AHE3_AIH transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA510AHE3_AIH?
P4SMA510AHE3_AIH orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA510AHE3_AIH 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_AIH?
For technical support, including P4SMA510AHE3_AIH datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA510AHE3_AIH requirements.
6.How does Aetrix verify that P4SMA510AHE3_AIH is sourced from the original manufacturer or authorized distributors?
All P4SMA510AHE3_AIH 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_AIH meets industry standards.
7.What is the process for return or replacement of P4SMA510AHE3_AIH?
All P4SMA510AHE3_AIH units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA510AHE3_AIH, 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_AIH part is unused and in its original packaging.
Return procedure for P4SMA510AHE3_AIH:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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