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Vishay General Semiconductor - Diodes Division P6SMB8.2CAHE3_B/I
- Part No.:
- P6SMB8.2CAHE3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB8.2CAHE3_B/I.pdf
- Description:
- 600W,8.2V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:8,950
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Product details
Overview
P6SMB8.2CAHE3_B/I from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the P6SMB series, designed for clamping voltage transients on signal and power lines. It features a 8.2 V standoff voltage (VWM), 12.1 V maximum clamping voltage at 49.6 A peak pulse current, and 600 W peak pulse power capability with a 10/1000 μs waveform - deployed in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the P6SMB8.2CAHE3_B/I datasheet, P6SMB8.2CAHE3_B/I pinout, P6SMB8.2CAHE3_B/I application, or P6SMB8.2CAHE3_B/I equivalent, this AEC-Q101-qualified bidirectional TVS offers verified clamping performance, SMB (DO-214AA) package compatibility, and low incremental surge resistance for robust ESD and lightning surge immunity in space-constrained PCB layouts.
Technical Context
The P6SMB8.2CAHE3_B/I operates as a bidirectional avalanche diode, symmetrically clamping transient overvoltages in both polarities without polarity marking. Its glass-passivated junction ensures stable breakdown behavior and fast response time (<1 ns), while the 100 °C/W junction-to-ambient thermal resistance requires careful pad layout per Vishay's 0.2" × 0.2" copper pad recommendation.
Rated for repetitive 0.01% duty cycle pulses, it delivers 600 W peak pulse power under standardized 10/1000 μs waveform conditions. The device is qualified to AEC-Q101 and meets J-STD-020 MSL Level 1, supporting lead-free reflow up to 260 °C peak temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 7.02 V - Maximum continuous reverse voltage before clamping begins; defines operating margin below breakdown. |
| VBR (Breakdown Voltage) | 7.79–8.61 V at 10 mA - Verified avalanche initiation range; ensures predictable turn-on during transients. |
| VC (Clamping Voltage) | 12.1 V at 49.6 A IPPM - Peak voltage seen by protected circuit during worst-case 600 W surge; critical for IC survival. |
| PPPM (Peak Pulse Power) | 600 W - Sustained energy absorption capability under 10/1000 μs waveform; enables protection against IEC 61000-4-5 surges. |
| ID (Reverse Leakage) | 200 μA max at VWM - Low leakage preserves signal integrity and minimizes standby power loss in high-impedance circuits. |
| TJ max | 150 °C - Maximum junction temperature rating; supports operation in under-hood automotive environments. |
| Package | SMB (DO-214AA) - Surface-mount outline with 5.59 mm × 4.06 mm footprint; compatible with automated pick-and-place. |
Pinout & Package
Package: SMB (DO-214AA), molded case with matte tin-plated leads, UL 94 V-0 rated compound, no polarity marking for bidirectional configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional terminal pair | No functional distinction; either terminal serves as anode or cathode depending on transient polarity - enables single-device protection of AC or floating lines. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables compliance with IEC 61000-4-5 Level 3 (1 kV line-to-line, 2 kV line-to-ground) surge testing in industrial interfaces. |
| AEC-Q101 qualification (HE3_B suffix) | Validated reliability for automotive applications including engine control modules, body electronics, and ADAS sensor interfaces. |
| Low clamping ratio (VC/VBR ≈ 1.52) | Minimizes overvoltage stress on downstream ICs - e.g., protects 3.3 V or 5 V logic inputs even during 49.6 A transients. |
| MSL Level 1, 260 °C peak reflow | Eliminates moisture sensitivity concerns and supports standard lead-free assembly without baking or special handling. |
| Glass passivated junction | Ensures long-term stability of breakdown voltage and leakage current across temperature and lifetime cycling. |
Applications
| Automotive Sensor Interface | Industrial PLC Analog Input |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor front-ends (e.g., pressure, temperature) from load dump and inductive switching transients in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed directly at connector entry point to shunt surge energy before reaching signal conditioning circuitry. Use Value: Maintains signal integrity under ISO 7637-2 Pulse 5a (75 V/300 ms) while enabling compact placement due to SMB footprint and AEC-Q101 qualification. |
Use Scenario: Safeguarding 4–20 mA current loop inputs and ±10 V analog inputs in programmable logic controllers exposed to field wiring surges. IC Role / Device Role / Timing Role: Primary transient suppression device across input terminals, coordinated with upstream fusing and filtering. Use Value: Limits clamped voltage to ≤12.1 V during 49.6 A transients, preventing damage to precision op-amps and ADC drivers in Class I, Division 2 hazardous locations. |
| Telecom Line Card Protection | Consumer USB Port ESD |
Use Scenario: Secondary protection on Ethernet PHY interfaces and T1/E1 line drivers subjected to lightning-induced surges per GR-1089-CORE. IC Role / Device Role / Timing Role: Coordinated clamping stage following gas discharge tube (GDT) primary protection; absorbs residual energy after GDT fires. Use Value: Delivers 600 W pulse handling with <1 ns response to suppress post-GDT let-through voltage spikes before they reach PHY ICs. |
Use Scenario: Board-level ESD protection for USB 2.0 data lines (D+/D−) and VBUS in portable audio devices and smart home hubs. IC Role / Device Role / Timing Role: Fast-acting bidirectional clamp placed adjacent to USB connector to divert ±15 kV contact discharge per IEC 61000-4-2. Use Value: Achieves sub-12.1 V clamping at 49.6 A while maintaining <10 pF junction capacitance - preserving signal rise/fall times without data corruption. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ8.0CA | 8.0 V VWM, 12.0 V VC at 49.2 A, same SMB package but lower power rating (400 W PPPM). | Limited to lower-energy transients (IEC 61000-4-2 only); insufficient for IEC 61000-4-5 Level 3. | Select when cost sensitivity outweighs surge margin and board space allows derating. |
| 1.5SMC8.2CA | 8.2 V VWM, 12.3 V VC at 48.8 A, larger SMC (DO-214AB) package (7.11 mm × 6.22 mm). | Higher thermal mass improves repetitive surge handling but consumes ~2.5× PCB area. | Choose when higher thermal endurance is required and layout permits larger footprint. |
Compared with SMAJ8.0CA and 1.5SMC8.2CA, the P6SMB8.2CAHE3_B/I uniquely balances 600 W surge capacity, AEC-Q101 qualification, and minimal SMB footprint - making it optimal for automotive and space-constrained industrial designs where both reliability and board density matter.
Availability
P6SMB8.2CAHE3_B/I is available at Aetrix Electronics and suitable for automotive sensor protection, industrial PLC analog inputs, telecom line card surge suppression, and consumer USB port ESD requiring stable component supply across production lifecycles.
Supply support for P6SMB8.2CAHE3_B/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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The P6SMB Series targets high-reliability transient suppression in automotive, industrial, and telecom systems - engineered for robust clamping, AEC-Q101 compliance, and seamless integration into automated SMT assembly lines.
FAQ
What is the standoff voltage (VWM) of the P6SMB8.2CAHE3_B/I?
The P6SMB8.2CAHE3_B/I has a standoff voltage (VWM) of 7.02 V, meaning it remains non-conductive up to this reverse voltage level under normal operating conditions. This value ensures safe operation below its 7.79–8.61 V breakdown range while providing sufficient margin for typical 5 V or 3.3 V system rails. The P6SMB8.2CAHE3_B/I maintains this specification across its full operating temperature range.
Is the P6SMB8.2CAHE3_B/I suitable for automotive applications?
Yes, the P6SMB8.2CAHE3_B/I is AEC-Q101 qualified (indicated by the "HE3_B" suffix), making it suitable for automotive applications including engine control units, body electronics, and ADAS sensor interfaces. It is tested for temperature cycling, humidity, mechanical shock, and surge endurance per AEC-Q101 requirements - confirming reliability in harsh vehicular environments.
What is the maximum clamping voltage of the P6SMB8.2CAHE3_B/I during a surge event?
The P6SMB8.2CAHE3_B/I clamps to a maximum of 12.1 V at its rated peak pulse current of 49.6 A (10/1000 μs waveform). This clamping voltage is measured under standardized test conditions and represents the highest voltage the protected circuit will experience during worst-case transient events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Does the P6SMB8.2CAHE3_B/I have polarity markings on the package?
No, the P6SMB8.2CAHE3_B/I is a bidirectional TVS diode and carries no polarity marking on the SMB (DO-214AA) package. Its symmetrical construction means either end functions as anode or cathode depending on transient polarity - simplifying layout and eliminating orientation errors during automated assembly.
What is the thermal resistance (RθJA) of the P6SMB8.2CAHE3_B/I?
The P6SMB8.2CAHE3_B/I has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on minimum recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value assumes standard FR-4 PCB construction and guides thermal design - for higher-power or elevated ambient conditions, additional copper pour or thermal vias may be needed to maintain TJ ≤ 150 °C.
P6SMB8.2CAHE3_B/I 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:
- -
- Bidirectional Channels:
- 1
- 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:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB8.2CAHE3_B/I FAQ
1.How can I place an order for P6SMB8.2CAHE3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB8.2CAHE3_B/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 P6SMB8.2CAHE3_B/I reliable?
The price and inventory of P6SMB8.2CAHE3_B/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB8.2CAHE3_B/I is usually 5 days.
3.What payment methods are accepted for P6SMB8.2CAHE3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB8.2CAHE3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB8.2CAHE3_B/I?
P6SMB8.2CAHE3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB8.2CAHE3_B/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 P6SMB8.2CAHE3_B/I?
For technical support, including P6SMB8.2CAHE3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB8.2CAHE3_B/I requirements.
6.How does Aetrix verify that P6SMB8.2CAHE3_B/I is sourced from the original manufacturer or authorized distributors?
All P6SMB8.2CAHE3_B/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 P6SMB8.2CAHE3_B/I meets industry standards.
7.What is the process for return or replacement of P6SMB8.2CAHE3_B/I?
All P6SMB8.2CAHE3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB8.2CAHE3_B/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 P6SMB8.2CAHE3_B/I part is unused and in its original packaging.
Return procedure for P6SMB8.2CAHE3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB8.2CAHE3_B/I Tags
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