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Vishay General Semiconductor - Diodes Division P4SMA480AHE3_A/I
- Part No.:
- P4SMA480AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA480AHE3_A/I.pdf
- Description:
- TVS DIODE 408VWM 658VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:8,969
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Product details
Overview
P4SMA480AHE3_A/I 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 DC power rails and signal lines. It features a 480 V standoff voltage (VWM), 504 V minimum breakdown voltage (VBR), 658 V maximum clamping voltage (VC) at 0.46 A peak pulse current (IPPM), and 400 W peak pulse power rating with a 10/1000 µs waveform - suitable for automotive-grade overvoltage protection in industrial power supplies and telecom interface circuits.
For engineers reviewing the P4SMA480AHE3_A/I datasheet, P4SMA480AHE3_A/I pinout, P4SMA480AHE3_A/I application, or P4SMA480AHE3_A/I equivalent, key selection criteria include its AEC-Q101 qualification, SMA (DO-214AC) package compatibility, unidirectional polarity with cathode band marking, and thermal resistance (RθJA = 120 °C/W) for board-level thermal design validation.
Technical Context
The P4SMA480AHE3_A/I operates as a unidirectional clamping device, leveraging a glass-passivated silicon junction to achieve fast response time (<1 ns) and low incremental surge resistance. Its breakdown threshold is tightly specified (456–504 V at 1 mA test current), ensuring predictable turn-on during transients induced by inductive switching or ESD events.
It is rated for 400 W peak pulse power (10/1000 µs), derated above 25 °C per Fig. 2, and supports repetitive surge duty cycles up to 0.01%. With a maximum operating junction temperature of +150 °C and MSL Level 1 moisture sensitivity, it meets automotive reliability requirements under AEC-Q101 stress testing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 408 V - Maximum continuous reverse voltage before clamping begins; defines safe operating DC bias margin. |
| VBR (Breakdown Voltage) | 456–504 V at IT = 1 mA - Confirmed avalanche onset range; ensures consistent clamping initiation across production lots. |
| VC (Clamping Voltage) | 658 V at IPPM = 0.46 A - Peak voltage seen by protected circuit during worst-case 10/1000 µs surge; determines downstream component stress. |
| PPPM (Peak Pulse Power) | 400 W - Energy-handling capacity for single transient events; validated per IEC 61000-4-5 Level 4 compliance paths. |
| TJ max. | +150 °C - Maximum junction temperature; enables operation in under-hood automotive environments and high-ambient industrial enclosures. |
| RθJA | 120 °C/W - Thermal resistance from junction to ambient; informs minimum copper pad area (0.2" × 0.2") required for thermal derating. |
| AEC-Q101 Qualified | Yes - Validated for automotive applications including engine control units, body electronics, and ADAS sensor interfaces. |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002. Cathode indicated by a band on the body; anode is unmarked end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward conduction | Connected to lower-potential side of protected line; critical for correct orientation in unidirectional clamp configuration. |
| Cathode | Current exit terminal; marked with band | Connected to higher-potential rail (e.g., VBUS); defines clamping polarity and must align with system ground reference. |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power (10/1000 µs) | Supports IEC 61000-4-5 surge immunity up to 4 kV (line-to-ground) without external heat sinking. |
| Glass passivated chip junction | Ensures stable leakage performance (<1 µA at VWM) and long-term reliability under humidity and thermal cycling. |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive use including temperature cycling, HTRB, and mechanical shock per AEC standard. |
| MSL Level 1 (260 °C reflow peak) | Enables standard SMT assembly without pre-baking; compatible with lead-free reflow profiles. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a), improving protection margin. |
Applications
| Automotive Power Rail Protection | Industrial DC Power Input |
|---|---|
Use Scenario: Protecting 48 V battery-fed ECUs against load dump transients per ISO 16750-2. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between battery input and upstream DC-DC converter input. Use Value: Limits transient voltage to ≤658 V, preventing damage to 60 V-rated MOSFETs and gate drivers in power stage. |
Use Scenario: Safeguarding programmable logic controller (PLC) 24 V DC inputs from field-wiring surges. IC Role / Device Role / Timing Role: Primary overvoltage suppression on DIN-rail mounted power supply output. Use Value: Absorbs 400 W pulses without degradation, maintaining system uptime in factory automation environments. |
| Telecom Interface Line Protection | Renewable Energy Monitoring |
Use Scenario: Shielding RS-485 transceivers in base station backhaul links from lightning-induced surges. IC Role / Device Role / Timing Role: Secondary protection stage after gas discharge tube (GDT), clamping residual energy. Use Value: Sub-1 ns response ensures clamping occurs before transceiver IC internal junctions fail. |
Use Scenario: Protecting solar inverter monitoring sensors from grid-switching transients. IC Role / Device Role / Timing Role: Standoff-rated TVS on analog voltage sensing line feeding MCU ADC input. Use Value: 408 V VWM allows direct placement on 380–400 V DC link monitoring nodes without false triggering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ480A-E3/52 | Same VWM (408 V), but SMB package (DO-214AA); 600 W PPPM rating; RθJA = 90 °C/W. | Higher power handling and better thermal performance, but larger footprint (4.58 × 3.94 mm vs. 4.50 × 2.79 mm). | Select when board space permits and >400 W surge margin is required; not drop-in due to different pad layout. |
| 1.5SMC480A | Same electrical specs (VWM/VBR/VC), but SMC (DO-214AB) package; 1500 W PPPM; RθJA = 65 °C/W. | Designed for higher-energy surges (e.g., AC mains coupling); requires larger PCB copper area and different reflow profile. | Choose for industrial AC-input stages where 1.5 kW pulse capability is mandated; incompatible pinout and thermal design. |
Compared with SMBJ480A-E3/52 and 1.5SMC480A, the P4SMA480AHE3_A/I offers optimal balance of AEC-Q101 compliance, compact SMA footprint, and verified 400 W surge capability - making it preferred for space-constrained automotive and telecom modules where MSL Level 1 and RoHS-compliant processing are mandatory.
Availability
P4SMA480AHE3_A/I is available at Aetrix Electronics and suitable for automotive electronic control units, industrial programmable logic controllers, and telecom base station interface protection requiring stable component supply and full traceability.
Supply support for P4SMA480AHE3_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, and protection devices with emphasis on reliability, precision, and automotive-grade qualification.
The P4SMA series was developed specifically for surface-mount transient suppression in harsh environments - targeting AEC-Q101-compliant automotive systems and high-reliability industrial power interfaces.
FAQ
What is the clamping voltage of the P4SMA480AHE3_A/I under a 10/1000 µs surge?
The P4SMA480AHE3_A/I has a maximum clamping voltage (VC) of 658 V at a peak pulse current (IPPM) of 0.46 A with 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 defines the upper voltage limit imposed on protected circuitry during surge events. The P4SMA480AHE3_A/I maintains this clamping performance across its qualified operating temperature range.
Is the P4SMA480AHE3_A/I AEC-Q101 qualified?
Yes, the P4SMA480AHE3_A/I is AEC-Q101 qualified, as confirmed by the "HE3" suffix and documentation in Vishay's P4SMA Series datasheet (Rev. 09-Jan-2024, Doc. #88367). It has undergone stress testing including temperature cycling, high-temperature reverse bias (HTRB), and mechanical shock per AEC-Q101 requirements - making it suitable for automotive applications such as body control modules and ADAS sensor interfaces.
What does the "_A/I" suffix mean in P4SMA480AHE3_A/I?
The "_A/I" suffix in P4SMA480AHE3_A/I indicates two attributes: "A" denotes the revision level (per ordering table footnote), and "I" specifies the packaging format - 13-inch diameter plastic tape and reel with 7500 units per reel. This matches Vishay's standard ordering code convention for the P4SMA series and ensures compatibility with high-volume SMT pick-and-place equipment.
Can the P4SMA480AHE3_A/I be used in bidirectional configurations?
No, the P4SMA480AHE3_A/I is a unidirectional TVS diode, as indicated by the "A" (not "CA") suffix and absence of bidirectional VBR/VWM ranges in its electrical characteristics table. Bidirectional variants use the "CA" suffix (e.g., P4SMA480CA). Using the P4SMA480AHE3_A/I in reverse-biased AC applications would result in forward conduction and failure; always verify polarity marking (cathode band) during layout.
What is the thermal resistance of the P4SMA480AHE3_A/I, and how does it affect layout?
The P4SMA480AHE3_A/I has a typical junction-to-ambient thermal resistance (RθJA) of 120 °C/W when mounted on minimum recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value directly impacts thermal derating: at 75 °C ambient, power dissipation must be limited to ≤1.8 W to maintain TJ ≤ 150 °C. Layout must replicate the specified pad dimensions and avoid thermal isolation to ensure reliable long-term operation.
P4SMA480AHE3_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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 408V
- Voltage - Breakdown (Min):
- 456V
- Voltage - Clamping (Max) @ Ipp:
- 658V
- Current - Peak Pulse (10/1000µs):
- 460mA
- 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)
P4SMA480AHE3_A/I FAQ
1.How can I place an order for P4SMA480AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA480AHE3_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 P4SMA480AHE3_A/I reliable?
The price and inventory of P4SMA480AHE3_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 P4SMA480AHE3_A/I is usually 5 days.
3.What payment methods are accepted for P4SMA480AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA480AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA480AHE3_A/I?
P4SMA480AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA480AHE3_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 P4SMA480AHE3_A/I?
For technical support, including P4SMA480AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA480AHE3_A/I requirements.
6.How does Aetrix verify that P4SMA480AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All P4SMA480AHE3_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 P4SMA480AHE3_A/I meets industry standards.
7.What is the process for return or replacement of P4SMA480AHE3_A/I?
All P4SMA480AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA480AHE3_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 P4SMA480AHE3_A/I part is unused and in its original packaging.
Return procedure for P4SMA480AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P4SMA480AHE3_A/I Tags
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