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Vishay General Semiconductor - Diodes Division P4SMA8.2AHE3/5A
- Part No.:
- P4SMA8.2AHE3/5A
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA8.2AHE3/5A.pdf
- Description:
- TVS DIODE 7.02VWM 12.1VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:3,819
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Product details
Overview
P4SMA8.2AHE3/5A from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMA (DO-214AC) package, designed for clamping fast voltage transients on power and signal lines. It features a 7.79 V minimum breakdown voltage (VBR), 7.02 V maximum stand-off voltage (VWM), 12.1 V clamping voltage (VC) at 33.1 A peak pulse current (IPPM), and 400 W peak pulse power rating with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial control systems.
For engineers reviewing the P4SMA8.2AHE3/5A datasheet, P4SMA8.2AHE3/5A pinout, P4SMA8.2AHE3/5A application, or P4SMA8.2AHE3/5A equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 150 °C max junction temperature, low incremental surge resistance, and compatibility with automated SMT placement on standard PCB copper pads.
Technical Context
The P4SMA8.2AHE3/5A operates as a clamping-type TVS diode that enters avalanche conduction when reverse voltage exceeds its breakdown threshold of 7.79–8.61 V. Its glass-passivated junction ensures stable VBR tolerance and low leakage (<200 µA at VWM), while its low Rsurge enables effective suppression of high-current transients without excessive voltage overshoot.
Designed for single-polarity protection, it exhibits fast response time (<1 ns), meets MSL Level 1 per J-STD-020 (peak reflow 260 °C), and delivers 400 W peak pulse power under 10/1000 µs waveform - derated to 300 W above 91 V. Its thermal resistance (RθJA = 120 °C/W) supports operation up to 150 °C junction temperature with appropriate PCB copper pad layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 7.79 V / 8.61 V at 10 mA test current - defines precise avalanche onset range for reliable overvoltage triggering |
| VWM | 7.02 V maximum - ensures no conduction during normal 5 V or 6 V rail operation, minimizing standby leakage |
| VC @ IPPM | 12.1 V at 33.1 A - limits protected circuit voltage during 400 W transient, staying within safe margin for 12 V logic |
| IPPM | 33.1 A with 10/1000 µs waveform - quantifies maximum surge current the device can safely clamp without failure |
| PPPM | 400 W peak pulse power - specifies transient energy handling capability under standardized surge conditions |
| TJ max | 150 °C - sets upper thermal limit for continuous operation and surge recovery in enclosed environments |
| Leakage ID | <200 µA at VWM - ensures minimal power loss and signal integrity impact in always-on circuits |
Pinout & Package
Package: SMA (DO-214AC), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102; cathode indicated by band marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / transient return path | Connected to ground or lower-potential rail; completes clamping loop during reverse surge events |
| Cathode | Avalanche conduction terminal | Connected to protected line (e.g., 5 V supply or data line); initiates clamping when voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness |
| Glass passivated junction | Ensures stable VBR tolerance, low leakage drift, and long-term parametric stability under thermal stress |
| MSL Level 1 | Compatible with standard SMT reflow profiles up to 260 °C peak, eliminating moisture sensitivity concerns |
| 400 W peak pulse power | Handles common IEC 61000-4-5 surge events (e.g., 2 Ω/12 Ω coupling) without degradation |
| Low profile SMA package | Enables high-density layout on space-constrained boards while maintaining thermal performance via copper pad design |
Applications
| Automotive Body Control Module | Industrial PLC Digital Input Protection |
|---|---|
Use Scenario: Protecting microcontroller GPIO and CAN transceiver power rails from load dump and inductive switching spikes in 12 V vehicle subsystems. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between 12 V supply and ground, triggered within nanoseconds of overvoltage event. Use Value: Limits transient voltage to ≤12.1 V, preventing latch-up or permanent damage to 12 V-tolerant MCUs and transceivers. |
Use Scenario: Safeguarding 24 V digital input channels on programmable logic controllers against field-wiring surges and relay coil flyback. IC Role / Device Role / Timing Role: Standoff voltage (7.02 V) isolates normal 24 V logic detection, while clamping activates only during >8 V transients. Use Value: Maintains signal integrity during steady-state operation and absorbs up to 400 W surge energy without requiring series impedance. |
| Consumer Appliance Motor Driver | Telecom Power Supply ESD Protection |
Use Scenario: Shielding gate drivers and bootstrap circuits in BLDC motor inverters from commutation-induced voltage spikes. IC Role / Device Role / Timing Role: Mounted directly across half-bridge supply rails to clamp fast dv/dt transients before they reach sensitive gate oxide. Use Value: Fast <1 ns response and low clamping voltage preserve MOSFET gate-source voltage margin during high-frequency switching. |
Use Scenario: Front-end protection for DC-DC converters in base station power modules exposed to lightning-induced surges on -48 V telecom supplies. IC Role / Device Role / Timing Role: Unidirectional TVS connected between -48 V rail and chassis ground to shunt positive-going transients. Use Value: Withstands repetitive 400 W pulses and maintains VC ≤12.1 V, ensuring downstream regulator input stays within safe operating area. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ8.0A | Higher VWM (6.89 V), same VC (12.7 V), larger SMB package (DO-214AA) | Lower board density; better thermal dissipation on large pads but requires more PCB area | Select when higher surge current rating (53.3 A) and improved thermal margin outweigh footprint constraints |
| 1.5SMC8.2A | Same VBR/VWM, higher PPPM (1500 W), larger SMC package (DO-214AB) | Not suitable for fine-pitch SMT; intended for high-energy industrial surge protection | Choose only when system-level surge requirements exceed 400 W and board space permits larger footprint |
Compared with P4SMA8.2AHE3/5A, SMBJ8.0A offers higher surge current handling in a slightly larger package, while 1.5SMC8.2A provides triple the peak power but sacrifices miniaturization - making P4SMA8.2AHE3/5A optimal for space-constrained, AEC-Q101-compliant designs needing balanced performance and manufacturability.
Availability
P4SMA8.2AHE3/5A is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O modules, and consumer appliance motor control systems requiring stable component supply, AEC-Q101 compliance, and RoHS-conformant sourcing.
Supply support for P4SMA8.2AHE3/5A 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 qualification.
The P4SMA Series is engineered for robust transient suppression in harsh environments, targeting automotive, industrial, and telecom applications where AEC-Q101 validation, low leakage, and repeatable clamping performance are mandatory.
FAQ
What is the breakdown voltage range of the P4SMA8.2AHE3/5A?
The P4SMA8.2AHE3/5A has a guaranteed breakdown voltage (VBR) range of 7.79 V to 8.61 V at 10 mA test current, measured per ANSI/IEEE C62.35. This tight tolerance ensures consistent avalanche initiation across production lots and supports precise overvoltage threshold design in 5 V and 6 V systems where the P4SMA8.2AHE3/5A is commonly deployed.
Is the P4SMA8.2AHE3/5A suitable for automotive applications?
Yes, the P4SMA8.2AHE3/5A is AEC-Q101 qualified and carries the HE3 suffix indicating automotive-grade qualification. It undergoes rigorous stress testing including temperature cycling, high-temperature reverse bias, and ESD verification - making the P4SMA8.2AHE3/5A appropriate for use in body control modules, infotainment power rails, and sensor interface protection within passenger vehicles.
What does the "/5A" suffix indicate in P4SMA8.2AHE3/5A?
The "/5A" suffix in P4SMA8.2AHE3/5A denotes packaging: 13-inch diameter plastic tape and reel containing 7500 units. This format supports high-volume SMT assembly lines and is distinct from "/61" (7-inch reel, 1800 units). The "HE3" portion confirms RoHS-compliant construction and AEC-Q101 qualification - both integral to the full P4SMA8.2AHE3/5A ordering identity.
How does the clamping voltage of P4SMA8.2AHE3/5A compare to its stand-off voltage?
The P4SMA8.2AHE3/5A has a maximum stand-off voltage (VWM) of 7.02 V and a maximum clamping voltage (VC) of 12.1 V at 33.1 A. This 5.08 V differential ensures reliable non-conduction during normal operation while limiting transient overvoltage to a safe margin - critical for protecting 12 V-tolerant ICs without false triggering, a key behavior confirmed in the P4SMA8.2AHE3/5A's published electrical characteristics table.
Can P4SMA8.2AHE3/5A be used in bidirectional configurations?
No, the P4SMA8.2AHE3/5A is strictly unidirectional, as indicated by the "A" suffix and cathode band marking. Bidirectional variants use the "CA" suffix (e.g., P4SMA8.2CA). Using the P4SMA8.2AHE3/5A in reverse-biased AC signal paths would result in forward conduction and potential failure - correct polarity orientation is essential for proper P4SMA8.2AHE3/5A operation.
P4SMA8.2AHE3/5A 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):
- 7.02V
- Voltage - Breakdown (Min):
- 7.79V
- Voltage - Clamping (Max) @ Ipp:
- 12.1V
- Current - Peak Pulse (10/1000µs):
- 33.1A
- 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)
P4SMA8.2AHE3/5A FAQ
1.How can I place an order for P4SMA8.2AHE3/5A through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA8.2AHE3/5A 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 P4SMA8.2AHE3/5A reliable?
The price and inventory of P4SMA8.2AHE3/5A are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA8.2AHE3/5A is usually 5 days.
3.What payment methods are accepted for P4SMA8.2AHE3/5A?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA8.2AHE3/5A transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA8.2AHE3/5A?
P4SMA8.2AHE3/5A orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA8.2AHE3/5A 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 P4SMA8.2AHE3/5A?
For technical support, including P4SMA8.2AHE3/5A datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA8.2AHE3/5A requirements.
6.How does Aetrix verify that P4SMA8.2AHE3/5A is sourced from the original manufacturer or authorized distributors?
All P4SMA8.2AHE3/5A 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 P4SMA8.2AHE3/5A meets industry standards.
7.What is the process for return or replacement of P4SMA8.2AHE3/5A?
All P4SMA8.2AHE3/5A units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA8.2AHE3/5A, 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 P4SMA8.2AHE3/5A part is unused and in its original packaging.
Return procedure for P4SMA8.2AHE3/5A:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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