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Vishay General Semiconductor - Diodes Division P6SMB8.2A-E3/5B
- Part No.:
- P6SMB8.2A-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB8.2A-E3/5B.pdf
- Description:
- TVS DIODE 7.02VWM 12.1VC DO214AA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
P6SMB8.2A-E3/5B from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping inductive switching transients and ESD events on power and signal lines. It features a 7.79 V to 8.61 V breakdown voltage at 10 mA, 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 - deployed in automotive sensor protection and industrial I/O interface circuits.
For engineers reviewing the P6SMB8.2A-E3/5B datasheet, P6SMB8.2A-E3/5B pinout, P6SMB8.2A-E3/5B application, or P6SMB8.2A-E3/5B equivalent, key selection criteria include unidirectional polarity, 12.1 V clamping performance at 49.6 A, RoHS-compliant matte tin plating, MSL Level 1 rating, and AEC-Q101 qualification eligibility via HE3/HM3 variants.
Technical Context
The P6SMB8.2A-E3/5B operates as a unidirectional avalanche diode, leveraging glass-passivated junction technology for stable reverse breakdown and fast response (<1 ns). Its clamping action begins at 7.02 V (VWM), triggers full conduction between 7.79 V and 8.61 V (VBR), and limits transient voltage to ≤12.1 V at 49.6 A (IPPM) under standardized 10/1000 μs surge conditions.
Thermal design relies on low RθJA (100 °C/W) and RθJL (20 °C/W), enabling operation up to +150 °C junction temperature. The device meets J-STD-020 MSL Level 1 and supports reflow soldering up to 260 °C peak, with cathode band marking for polarity identification on the SMB package.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage (VBR) | 7.79 V to 8.61 V at 10 mA - defines precise avalanche onset range 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 IPPM - peak voltage seen by protected circuit during worst-case 10/1000 μs transient |
| Peak Pulse Power (PPPM) | 600 W - surge energy handling capacity per single 10/1000 μs event at 0.01 % duty cycle |
| Package | SMB (DO-214AA) - surface-mount footprint with 0.205" × 0.220" pad layout, UL 94 V-0 rated molding |
| Operating Temperature | -65 °C to +150 °C - enables use in under-hood automotive and industrial ambient environments |
| RoHS Compliance | E3 suffix - lead-free, halogen-free, and compliant with EU RoHS Directive 2011/65/EU |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads; cathode indicated by band on body; dimensions: 0.130" × 0.155" × 0.086" (3.30 mm × 3.94 mm × 2.20 mm).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse voltage reference | Connected to system ground or lower-potential rail in unidirectional TVS configuration |
| Cathode | Avalanche conduction terminal / Clamping node | Connected to line being protected (e.g., 12 V supply rail or sensor signal); band-marked end |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity stress |
| 600 W peak pulse power (10/1000 μs) | Protects against ISO 7637-2 Pulse 1/2a/3a and IEC 61000-4-5 Level 3 surges without degradation |
| MSL Level 1, 260 °C peak reflow | Supports standard SMT assembly without pre-baking or special handling requirements |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients (e.g., ESD >15 kV contact discharge) |
| AEC-Q101 qualification path | HE3/HM3 variants available for automotive applications requiring validated reliability testing |
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 kickback in 12 V vehicle subsystems. IC Role / Device Role / Timing Role: Unidirectional TVS placed between signal line and ground to clamp transients before they reach sensitive input stages of transceivers or ADC front-ends. Use Value: Limits voltage excursion to ≤12.1 V during 49.6 A surges, preserving signal integrity and preventing latch-up in downstream ICs. |
Use Scenario: Safeguarding digital input modules in programmable logic controllers against field-wiring transients, relay coil flyback, and electrostatic discharge in factory automation cabinets. IC Role / Device Role / Timing Role: Standoff-rated TVS on 24 V DC input channels, absorbing repetitive 600 W pulses without derating beyond 0.01 % duty cycle. Use Value: Maintains 7.02 V nominal operating margin while delivering sub-12.1 V clamping, ensuring compatibility with 24 V logic thresholds and reducing false triggering. |
| Consumer Power Adapter Input | Telecom Line Card Surge Suppression |
Use Scenario: Secondary-side overvoltage suppression on 5–12 V DC outputs of wall adapters and USB PD chargers exposed to lightning-induced surges on connected cables. IC Role / Device Role / Timing Role: Final-stage clamping device after primary-side isolation, shunting surge energy directly to ground before reaching USB-C controller or PMIC. Use Value: Fast <1 ns response and 12.1 V clamping prevent damage to 5 V tolerant USB interface ICs during 10/1000 μs transients. |
Use Scenario: Front-end protection of Ethernet PHYs and DSL line drivers against induced surges on twisted-pair telecom interfaces per GR-1089-CORE. IC Role / Device Role / Timing Role: Unidirectional TVS on differential pairs referenced to chassis ground, coordinated with common-mode chokes to meet Class B immunity. Use Value: 600 W rating and 12.1 V VC enable compliance with 10/700 μs telecom surge standards when used with appropriate series impedance. |
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 (Bourns) | 8.0 V VBR min (vs. 7.79 V), 12.0 V VC at 49.2 A, same SMB package and 600 W rating | Marginally tighter VBR tolerance; identical clamping performance and thermal specs | Select SMAJ8.0A when tighter 8.0 V nominal breakdown is preferred for systems with narrow VWM headroom |
| 1.5SMC8.2A (ON Semiconductor) | Same VBR (7.79–8.61 V), 12.1 V VC at 49.6 A, but in larger SMC (DO-214AB) package (0.280" × 0.240") | Higher thermal mass allows higher sustained power dissipation; requires PCB layout change | Choose 1.5SMC8.2A only if board space permits larger footprint and higher thermal inertia is needed for repetitive surge duty |
Compared with SMAJ8.0A and 1.5SMC8.2A, the P6SMB8.2A-E3/5B offers identical electrical clamping performance in the smallest standard SMB footprint, with RoHS-compliant E3 termination and documented MSL Level 1 suitability - making it optimal for high-density, automotive-qualified, and cost-sensitive designs where board area is constrained.
Availability
P6SMB8.2A-E3/5B is available at Aetrix Electronics and suitable for automotive sensor protection, industrial PLC I/O hardening, and consumer power adapter surge suppression requiring stable component supply, consistent RoHS compliance, and tape-and-reel delivery for automated assembly.
Supply support for P6SMB8.2A-E3/5B 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, precision, and application-specific optimization.
The P6SMB Series belongs to Vishay's TRANSZORB® TVS portfolio, engineered for robust transient suppression in automotive, industrial, and communications infrastructure - prioritizing low clamping voltage, fast response, and AEC-Q101 readiness.
FAQ
What is the maximum clamping voltage of the P6SMB8.2A-E3/5B under standard test conditions?
The P6SMB8.2A-E3/5B has a maximum clamping voltage (VC) of 12.1 V at 49.6 A peak pulse current, measured using the industry-standard 10/1000 μs double-exponential waveform. This value represents the highest voltage imposed on the protected circuit during a worst-case transient event, and it is guaranteed across the full operating temperature range of -65 °C to +150 °C. The P6SMB8.2A-E3/5B maintains this clamping performance with minimal variation due to its glass-passivated junction structure.
Is the P6SMB8.2A-E3/5B suitable for automotive applications?
The P6SMB8.2A-E3/5B itself is commercial-grade (E3 suffix), but Vishay offers AEC-Q101-qualified versions under HE3 and HM3 ordering codes (e.g., P6SMB8.2AHE3_B). These variants undergo stress testing per AEC-Q101 including HTGB, HTRB, and TCT. While the P6SMB8.2A-E3/5B shares identical electrical and thermal characteristics, only HE3/HM3 parts are certified for automotive use. For non-safety-critical automotive subsystems, the P6SMB8.2A-E3/5B may be used pending internal qualification.
What does the "-E3/5B" suffix indicate in P6SMB8.2A-E3/5B?
The "-E3" denotes RoHS-compliant, lead-free, halogen-free construction with matte tin-plated leads meeting J-STD-002 and JESD 22-B102 solderability standards. The "/5B" specifies packaging: 13-inch diameter plastic tape-and-reel with 3200 units per reel, optimized for high-speed pick-and-place assembly. This differs from /52 (7-inch reel, 750 units) and ensures compatibility with large-volume SMT lines requiring extended reel life.
How does the P6SMB8.2A-E3/5B compare to bidirectional TVS diodes like P6SMB8.2CA?
The P6SMB8.2A-E3/5B is unidirectional and intended for DC line protection where polarity is fixed (e.g., 12 V supply rails), offering lower leakage and sharper knee characteristics. In contrast, P6SMB8.2CA is bidirectional, suited for AC or floating signal lines (e.g., RS-485, audio), with symmetrical clamping in both directions. Both share identical VBR, VC, and PPPM ratings, but the P6SMB8.2A-E3/5B provides superior performance in polarized applications due to its dedicated anode-cathode architecture.
What is the thermal resistance profile of the P6SMB8.2A-E3/5B, and how does it affect PCB layout?
The P6SMB8.2A-E3/5B has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W and junction-to-lead resistance (RθJL) of 20 °C/W when mounted on minimum recommended 0.2" × 0.2" copper pads per terminal. To maintain safe operation at full 600 W surge rating, designers must ensure adequate copper pour and avoid excessive trace length between the P6SMB8.2A-E3/5B cathode/anode and respective ground/power planes. Layout deviations increase junction temperature and reduce surge endurance.
P6SMB8.2A-E3/5B 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-E3/5B FAQ
1.How can I place an order for P6SMB8.2A-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB8.2A-E3/5B 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-E3/5B reliable?
The price and inventory of P6SMB8.2A-E3/5B 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-E3/5B is usually 5 days.
3.What payment methods are accepted for P6SMB8.2A-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB8.2A-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB8.2A-E3/5B?
P6SMB8.2A-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB8.2A-E3/5B 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-E3/5B?
For technical support, including P6SMB8.2A-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB8.2A-E3/5B requirements.
6.How does Aetrix verify that P6SMB8.2A-E3/5B is sourced from the original manufacturer or authorized distributors?
All P6SMB8.2A-E3/5B 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-E3/5B meets industry standards.
7.What is the process for return or replacement of P6SMB8.2A-E3/5B?
All P6SMB8.2A-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB8.2A-E3/5B, 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-E3/5B part is unused and in its original packaging.
Return procedure for P6SMB8.2A-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB8.2A-E3/5B Tags
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