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Vishay General Semiconductor - Diodes Division P4SMA8.2A-M3/61
- Part No.:
- P4SMA8.2A-M3/61
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AC, SMA
- Datasheet:
-
P4SMA8.2A-M3/61.pdf
- Description:
- TVS DIODE 7.02VWM 12.1VC DO214AC
- Quantity:
- Payment:
- Shipping:
Inventory:9,297
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Product details
Overview
P4SMA8.2A-M3/61 from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMA (DO-214AC) package, designed for clamping voltage transients on power and signal lines. It features 7.79 V to 8.61 V breakdown voltage (VBR) at 10 mA, 7.02 V maximum standoff voltage (VWM), 12.1 V clamping voltage (VC) at 33.1 A peak pulse current, and 400 W peak pulse power capability with 10/1000 µs waveform - used in automotive sensor protection and industrial I/O interface surge suppression.
For engineers reviewing the P4SMA8.2A-M3/61 datasheet, P4SMA8.2A-M3/61 pinout, P4SMA8.2A-M3/61 application, or P4SMA8.2A-M3/61 equivalent, this page delivers verified electrical parameters, thermal derating behavior, AEC-Q101 qualification status, halogen-free RoHS compliance (M3 suffix), and real-world clamping performance under repetitive surge conditions.
Technical Context
The P4SMA8.2A-M3/61 operates as a unidirectional avalanche diode with glass-passivated junction, enabling sub-nanosecond response to ESD and lightning-induced transients. Its clamping action begins at VWM = 7.02 V and fully engages at VBR = 7.79–8.61 V, limiting line voltage to ≤12.1 V at 33.1 A IPPM under standardized 10/1000 µs surge.
Thermal design relies on RθJA = 120 °C/W (free-air) and RθJL = 30 °C/W, with derating above 25 °C per Figure 2. The device supports 40 A non-repetitive forward surge (8.3 ms half-sine) and maintains operation across –65 °C to +150 °C junction temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 7.79 V / 8.61 V at 10 mA - defines precise avalanche onset window for predictable clamping threshold |
| VWM | 7.02 V - maximum continuous reverse operating voltage before leakage exceeds 200 µA |
| VC @ IPPM | 12.1 V at 33.1 A - clamped line voltage during 400 W transient, critical for downstream IC survivability |
| IPPM | 33.1 A - peak surge current supported with 10/1000 µs waveform on standard 5.0 mm × 5.0 mm copper pads |
| PPPM | 400 W - peak pulse power rating; derates to 300 W above 91 V, but fully applicable at 8.2 V nominal |
| TJ max. | +150 °C - enables use in under-hood automotive environments and high-temperature industrial enclosures |
| Package | SMA (DO-214AC) - surface-mount footprint compatible with automated placement; cathode band marked |
Pinout & Package
SMA (DO-214AC) package: molded epoxy case with matte tin-plated leads, UL 94 V-0 rated, MSL Level 1 (260 °C reflow peak), 0.064 g unit weight. Cathode identified by black band; anode is unmarked end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side of protected line; conducts during forward surge (e.g., reverse-biased supply rail fault) |
| Cathode | Avalanche clamping terminal | Connected to higher-potential side; initiates breakdown when reverse voltage exceeds VWM, shunting surge to ground |
Key Features
| Feature | Design Value |
|---|---|
| 400 W peak pulse power | Supports IEC 61000-4-5 Level 4 (4 kV/2 Ω) surge testing on 12 V automotive power rails without derating |
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD (HBM ≥8 kV) |
| Halogen-free & RoHS-compliant (M3) | Meets JESD201 Class 2 whisker resistance and EU Directive 2011/65/EU without brominated flame retardants |
| Low incremental surge resistance | Enables tighter VC–VBR margin (ΔV = 4.31 V), reducing stress on downstream MOSFET gate drivers and MCU I/O pins |
| Fast response time | Sub-1 ns turn-on ensures clamping occurs before transient energy couples into sensitive analog front-ends or CAN transceivers |
Applications
| Automotive Sensor Interface Protection | Industrial PLC Digital Input Protection |
|---|---|
|
Use Scenario: Protecting 5 V or 12 V sensor signal lines (e.g., oxygen, pressure, temperature sensors) from load dump and ISO 7637-2 pulses in engine control units. IC Role / Device Role: Unidirectional TVS placed between sensor output and microcontroller ADC input or comparator stage. Use Value: Clamps transients to ≤12.1 V while maintaining <200 µA leakage at 7.02 V, preserving signal integrity and preventing ADC saturation or latch-up. |
Use Scenario: Safeguarding 24 V DC digital inputs on programmable logic controllers exposed to relay coil flyback and field wiring surges. IC Role / Device Role: TVS connected across input terminals (signal-to-ground) upstream of optocoupler or Schmitt trigger input stage. Use Value: Absorbs 400 W surges without degradation, enabling reliable operation in factory automation where >100,000 switching cycles/year are typical. |
| Consumer Power Adapter Output Clamping | Telecom Line Card Surge Suppression |
|
Use Scenario: Secondary-side overvoltage protection on 5 V/9 V/12 V USB-C PD adapters subject to transformer leakage spikes and hot-plug transients. IC Role / Device Role: Unidirectional TVS placed between DC output and ground, downstream of synchronous rectifier. Use Value: Limits output overshoot to 12.1 V during no-load to full-load transitions, protecting connected devices compliant with USB PD 3.1 voltage tolerance limits. |
Use Scenario: Primary protection on Ethernet PHY or RS-485 transceiver lines in network switches subjected to lightning-induced common-mode surges. IC Role / Device Role: TVS array component used in conjunction with common-mode chokes and GDTs in multi-stage telecom surge circuit. Use Value: Provides fast, low-VC clamping stage that handles initial 10/1000 µs energy before slower GDTs engage, improving overall let-through 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 |
|---|---|---|---|
| SMBJ8.0A | Higher VWM = 8.0 V, VBR = 8.89–9.83 V, same SMA package but 600 W PPPM | Better suited for 9 V nominal systems; requires layout review due to 0.8 V higher clamping onset | Select SMBJ8.0A only if system VCC tolerates ≥8.0 V standby reverse bias and higher clamping voltage is acceptable |
| 1.5SMC8.2A | Same VWM/VBR specs, but SMC (DO-214AB) package - 2.5 mm wider, 0.3 mm thicker, 0.12 g heavier | Requires PCB pad revision; offers 1500 W PPPM, but overkill for most 400 W-class protection needs | Choose 1.5SMC8.2A only when legacy SMC footprint exists or higher surge margin is mandated by safety certification |
Compared with SMBJ8.0A and 1.5SMC8.2A, the P4SMA8.2A-M3/61 delivers optimal balance of precision 7.02 V standoff, compact SMA footprint, halogen-free compliance, and validated AEC-Q101 performance - making it the preferred choice for space-constrained automotive and industrial designs requiring exact 8.2 V-rated clamping.
Availability
P4SMA8.2A-M3/61 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC inputs, consumer power adapter outputs, and telecom line card surge suppression requiring stable component supply, halogen-free compliance, and AEC-Q101 qualification.
Supply support for P4SMA8.2A-M3/61 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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The P4SMA Series is engineered for robust transient suppression in automotive, industrial, and consumer electronics - delivering consistent clamping performance, AEC-Q101 validation, and surface-mount scalability across 6.8 V to 540 V standoff ranges.
FAQ
What is the maximum clamping voltage of the P4SMA8.2A-M3/61 under standard test conditions?
The P4SMA8.2A-M3/61 exhibits a maximum clamping voltage (VC) of 12.1 V when subjected to its rated peak pulse current (IPPM) of 33.1 A using the 10/1000 µs waveform. This value is measured at TA = 25 °C on 5.0 mm × 5.0 mm copper pads and represents the upper limit of voltage seen by downstream circuitry during surge events. The P4SMA8.2A-M3/61 maintains this clamping performance consistently across its qualified temperature range.
Is the P4SMA8.2A-M3/61 qualified for automotive applications?
Yes, the P4SMA8.2A-M3/61 is AEC-Q101 qualified, as confirmed by Vishay's documentation for the P4SMA series with "_A" suffix variants. The M3 suffix denotes halogen-free, RoHS-compliant construction meeting JESD201 Class 2 whisker resistance, and the device is rated for operation from –65 °C to +150 °C junction temperature - satisfying requirements for under-hood and body-control module deployments. The P4SMA8.2A-M3/61 carries full AEC-Q101 test reports per stress categories including HTGB, HTRB, and temperature cycling.
How does the M3 suffix differ from the E3 suffix in P4SMA8.2A-M3/61?
The M3 suffix in P4SMA8.2A-M3/61 indicates halogen-free, RoHS-compliant construction with matte tin-plated leads meeting JESD201 Class 2 whisker resistance, whereas E3 denotes standard RoHS compliance without halogen-free assurance. Both meet UL 94 V-0 and MSL Level 1, but only M3 guarantees absence of brominated flame retardants and complies with stricter environmental mandates such as China RoHS II Annex III. The P4SMA8.2A-M3/61 is therefore specified where halogen-free content is contractually required.
What is the standoff voltage (VWM) rating for the P4SMA8.2A-M3/61?
The standoff voltage (VWM) for the P4SMA8.2A-M3/61 is 7.02 V - the maximum DC or RMS voltage that can be continuously applied in reverse bias while keeping reverse leakage current ≤200 µA. This value ensures compatibility with 5 V and 12 V systems where transient suppression must not interfere with normal operation. The P4SMA8.2A-M3/61 remains non-conductive below this threshold, preserving signal integrity and minimizing power loss in always-on circuits.
Can the P4SMA8.2A-M3/61 be used in bidirectional configurations?
No, the P4SMA8.2A-M3/61 is a unidirectional TVS diode, identifiable by its cathode band marking. Bidirectional operation requires the CA suffix (e.g., P4SMA8.2CA). Using the P4SMA8.2A-M3/61 in reverse-biased AC or symmetrical signal paths would result in forward conduction during negative half-cycles, causing failure. For bidirectional protection, select P4SMA8.2CA-M3/61 - which has identical package, thermal specs, and clamping performance in both directions.
P4SMA8.2A-M3/61 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):
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AC (SMA)
P4SMA8.2A-M3/61 FAQ
1.How can I place an order for P4SMA8.2A-M3/61 through Aetrix?
Please submit a Request for Quotation (RFQ) for P4SMA8.2A-M3/61 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 P4SMA8.2A-M3/61 reliable?
The price and inventory of P4SMA8.2A-M3/61 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P4SMA8.2A-M3/61 is usually 5 days.
3.What payment methods are accepted for P4SMA8.2A-M3/61?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P4SMA8.2A-M3/61 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P4SMA8.2A-M3/61?
P4SMA8.2A-M3/61 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P4SMA8.2A-M3/61 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 P4SMA8.2A-M3/61?
For technical support, including P4SMA8.2A-M3/61 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P4SMA8.2A-M3/61 requirements.
6.How does Aetrix verify that P4SMA8.2A-M3/61 is sourced from the original manufacturer or authorized distributors?
All P4SMA8.2A-M3/61 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 P4SMA8.2A-M3/61 meets industry standards.
7.What is the process for return or replacement of P4SMA8.2A-M3/61?
All P4SMA8.2A-M3/61 units undergo pre-shipment inspection (PSI). If there is an issue with P4SMA8.2A-M3/61, 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 P4SMA8.2A-M3/61 part is unused and in its original packaging.
Return procedure for P4SMA8.2A-M3/61:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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