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Vishay General Semiconductor - Diodes Division P6SMB8.2A-E3/52
- Part No.:
- P6SMB8.2A-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB8.2A-E3/52.pdf
- Description:
- TVS DIODE 7.02VWM 12.1VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,106
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Product details
Overview
P6SMB8.2A-E3/52 from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on power and signal lines. It features 7.79 V to 8.61 V breakdown voltage at 10 mA test current, 7.02 V stand-off voltage, 12.1 V maximum clamping voltage at 49.6 A peak pulse current, and 600 W peak pulse power capability with 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor signal lines in industrial and automotive electronics.
For engineers reviewing the P6SMB8.2A-E3/52 datasheet, P6SMB8.2A-E3/52 pinout, P6SMB8.2A-E3/52 application, or P6SMB8.2A-E3/52 equivalent, key selection criteria include unidirectional polarity, 7.02 V working voltage, 12.1 V clamping performance under 49.6 A surge, RoHS-compliant matte tin plating, and MSL Level 1 moisture sensitivity rating for reflow compatibility.
Technical Context
This TVS diode operates as a voltage-clamping protection device triggered by transient overvoltage events. Its glass-passivated junction enables fast response time (<1 ns), low incremental surge resistance, and stable clamping behavior across temperature ranges from –65 °C to +150 °C.
The device complies with IEC 61000-4-2 (ESD) and IEC 61000-4-4 (EFT) immunity standards when applied per recommended PCB layout. Its 100 °C/W junction-to-ambient thermal resistance requires minimum 0.2" × 0.2" copper pads per terminal for rated 600 W pulse handling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage (VBR) | 7.79 V to 8.61 V at 10 mA - defines precise conduction onset threshold for reliable overvoltage triggering |
| Stand-off Voltage (VWM) | 7.02 V - maximum continuous reverse operating voltage before leakage exceeds 200 μA |
| Clamping Voltage (VC) | 12.1 V at 49.6 A (10/1000 μs) - limits downstream voltage stress during surge events |
| Peak Pulse Power (PPPM) | 600 W - supports high-energy transient suppression without failure under repetitive 0.01% duty cycle |
| Package | SMB (DO-214AA) - low-profile SMD footprint compatible with automated placement and J-STD-020 reflow profiles |
| RoHS Compliance | E3 suffix - lead-free, halogen-free, and compliant with EU RoHS Directive 2011/65/EU |
| Temperature Range | –65 °C to +150 °C - suitable for under-hood automotive and industrial environments |
Pinout & Package
SMB (DO-214AA) package with cathode band marking on one end; two-terminal unidirectional configuration. Matte tin-plated leads meet J-STD-002 solderability and JESD 22-B102 whisker resistance Class 2 requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction | Connected to lower-potential side of protected line; enables ESD discharge path to ground |
| Cathode | Current exit point during reverse-biased clamping | Connected to higher-potential rail (e.g., VCC or signal line); conducts surge current to ground when VIN > VBR |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power | Enables robust protection against IEC 61000-4-4 EFT bursts up to ±4 kV without degradation |
| 12.1 V clamping at 49.6 A | Keeps protected ICs within safe absolute maximum ratings during 10/1000 μs surges |
| Glass passivated junction | Ensures long-term stability of VBR and leakage under thermal cycling and humidity exposure |
| MSL Level 1 rating | Allows unlimited floor life and single-reflow processing at peak temperature up to 260 °C |
| AEC-Q101 qualification option | HE3 variant available for automotive applications requiring validated reliability per JESD22-A108 |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and inductive switching transients in vehicle ECUs. IC Role / Device Role / Timing Role: Unidirectional clamping device placed between signal line and ground, activated only during positive overvoltage events. Use Value: Limits voltage seen by transceiver IC to ≤12.1 V during 49.6 A surge, preventing latch-up or gate oxide damage while maintaining signal integrity. |
Use Scenario: Safeguarding digital input modules in programmable logic controllers against field-wiring induced surges from relay coils and motor drives. IC Role / Device Role / Timing Role: Standoff protector on 24 V DC input channels, absorbing repetitive 10/1000 μs transients up to 600 W without derating. Use Value: Extends module MTBF by eliminating false triggering and component failure caused by >1 kV transients on factory floor wiring. |
| Consumer Power Adapter Protection | Telecom Line Interface Protection |
Use Scenario: Secondary-side overvoltage suppression on 5 V/12 V rails of AC-DC adapters for smart home devices. IC Role / Device Role / Timing Role: Fast-response clamp parallel to load, triggered within nanoseconds to shunt surge energy before downstream regulators fail. Use Value: Maintains regulated output during lightning-induced surges by clamping at 12.1 V - below typical LDO dropout and IC absolute max ratings. |
Use Scenario: Front-end protection for Ethernet PHYs and DSL line drivers exposed to induced surges on twisted-pair telecom interfaces. IC Role / Device Role / Timing Role: Unidirectional TVS on VDD supply rail and data line terminations, coordinated with common-mode chokes. Use Value: Prevents permanent damage to PHY silicon during ±2 kV IEC 61000-4-5 surges while preserving signal rise/fall times due to low junction capacitance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ8.0A | Lower VBR range (7.6–8.4 V), same SMB package, 400 W PPPM | Limited to lower-energy transients; not rated for 600 W pulses | Select when system surge energy is <400 W and tighter VBR tolerance is required |
| 1.5SMC8.2A | Same VBR/VC, but larger SMC (DO-214AB) package, 1500 W PPPM | Requires larger PCB area; suited for higher-power industrial systems | Choose when board space allows and surge margin must exceed 600 W |
Compared with SMAJ8.0A and 1.5SMC8.2A, the P6SMB8.2A-E3/52 delivers optimal balance of 600 W surge capacity, SMB footprint, and 7.02 V working voltage - making it ideal for space-constrained industrial and automotive designs where both clamping precision and pulse power matter.
Availability
P6SMB8.2A-E3/52 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, consumer power adapter secondary rails, and telecom line driver protection requiring stable component supply and full traceability.
Supply support for P6SMB8.2A-E3/52 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 P6SMB Series targets high-reliability transient suppression in automotive, industrial, and telecom systems - engineered for consistent clamping performance, low leakage, and robust thermal behavior under real-world surge conditions.
FAQ
What is the clamping voltage of P6SMB8.2A-E3/52 at its rated peak pulse current?
The P6SMB8.2A-E3/52 has a maximum clamping voltage (VC) of 12.1 V at 49.6 A peak pulse current with a 10/1000 μs waveform. This value is measured under standardized test conditions per JEDEC and ensures predictable voltage limiting during surge events. The P6SMB8.2A-E3/52 maintains this clamping performance across its specified operating temperature range and after repeated surge exposures when mounted per recommended pad layout.
Is P6SMB8.2A-E3/52 suitable for automotive applications?
The base P6SMB8.2A-E3/52 is commercial-grade and RoHS-compliant, but not AEC-Q101 qualified. However, the P6SMB8.2AHE3_B variant (same electrical specs, HE3 suffix) is AEC-Q101 qualified for automotive use. For non-automotive applications like industrial controls or consumer power supplies, the P6SMB8.2A-E3/52 meets all functional requirements including MSL Level 1 and 150 °C junction temperature rating.
How does the P6SMB8.2A-E3/52 differ from bidirectional TVS diodes like P6SMB8.2CA?
The P6SMB8.2A-E3/52 is unidirectional and functions only during positive overvoltage events relative to ground, with a cathode band marking. In contrast, P6SMB8.2CA is bidirectional and clamps symmetrically for both polarities - used in AC-coupled or floating signal lines. The P6SMB8.2A-E3/52 offers lower leakage at VWM (200 μA max vs. 500 μA for CA version) and is preferred for DC power rail protection where polarity is fixed.
What PCB layout guidance applies to P6SMB8.2A-E3/52 for optimal thermal and electrical performance?
Vishay specifies mounting P6SMB8.2A-E3/52 on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal to achieve rated 600 W pulse power. Traces should be short and wide to minimize inductance; ground connections must be low-impedance. Avoid thermal reliefs on pads. The P6SMB8.2A-E3/52 datasheet Figure 6 shows the exact pad dimensions and spacing for DO-214AA, critical for both thermal dissipation and surge current handling.
Does P6SMB8.2A-E3/52 require derating at elevated ambient temperatures?
Yes - the P6SMB8.2A-E3/52 must be derated above 25 °C ambient per Figure 2 in the Vishay datasheet. At 85 °C ambient, its peak pulse power drops to ~420 W (70% of 600 W), and at 125 °C, it falls to ~240 W (40%). Derating ensures junction temperature remains ≤150 °C. The P6SMB8.2A-E3/52's RθJA of 100 °C/W means proper copper pad area is essential to maintain performance at high TA.
P6SMB8.2A-E3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, 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):
- 49.6A
- Power - Peak Pulse:
- 600W
- 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-214AA (SMB)
P6SMB8.2A-E3/52 FAQ
1.How can I place an order for P6SMB8.2A-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB8.2A-E3/52 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 P6SMB8.2A-E3/52 reliable?
The price and inventory of P6SMB8.2A-E3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB8.2A-E3/52 is usually 5 days.
3.What payment methods are accepted for P6SMB8.2A-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB8.2A-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB8.2A-E3/52?
P6SMB8.2A-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB8.2A-E3/52 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 P6SMB8.2A-E3/52?
For technical support, including P6SMB8.2A-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB8.2A-E3/52 requirements.
6.How does Aetrix verify that P6SMB8.2A-E3/52 is sourced from the original manufacturer or authorized distributors?
All P6SMB8.2A-E3/52 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 P6SMB8.2A-E3/52 meets industry standards.
7.What is the process for return or replacement of P6SMB8.2A-E3/52?
All P6SMB8.2A-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB8.2A-E3/52, 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 P6SMB8.2A-E3/52 part is unused and in its original packaging.
Return procedure for P6SMB8.2A-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB8.2A-E3/52 Tags
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