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Vishay General Semiconductor - Diodes Division P6SMB8.2CAHE3_B/H
- Part No.:
- P6SMB8.2CAHE3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB8.2CAHE3_B/H.pdf
- Description:
- 600W,8.2V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:6,793
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Product details
Overview
P6SMB8.2CAHE3_B/H from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping ESD and surge transients on signal/power lines. It features 8.2 V standoff voltage (VWM), 12.1 V maximum clamping voltage (VC) at 49.6 A peak pulse current (IPPM), and 600 W peak pulse power (10/1000 μs). Used to protect MOSFETs, ICs, and sensor signal lines in automotive and industrial electronics.
For engineers reviewing the P6SMB8.2CAHE3_B/H datasheet, P6SMB8.2CAHE3_B/H pinout, P6SMB8.2CAHE3_B/H application, or P6SMB8.2CAHE3_B/H equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, low clamping ratio (VC/VWM = 1.48), MSL Level 1 rating, and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This TVS operates symmetrically in both directions due to its bidirectional construction, enabling protection of AC-coupled or differential signal paths without polarity concerns. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<200 μA at VWM), while the low incremental surge resistance supports fast energy dissipation during transient events.
The device meets JESD22-B102 whisker test Class 2 and is rated for TJ = -65 °C to +150 °C operation. Thermal resistance (RθJA = 100 °C/W) and RθJL = 20 °C/W define its thermal performance under pulsed conditions when mounted per recommended pad layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 7.02 V - Maximum continuous reverse voltage before clamping begins; defines safe operating margin below breakdown. |
| VBR (Breakdown Voltage) | 7.79–8.61 V at 10 mA - Confirmed avalanche onset 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 600 W surge; critical for IC-level immunity. |
| PPPM | 600 W (10/1000 μs waveform) - Surge energy handling capacity; supports IEC 61000-4-5 Level 4 compliance when properly laid out. |
| ID (Reverse Leakage) | ≤200 μA at VWM - Low leakage preserves signal integrity and minimizes standby power loss in high-impedance nodes. |
| TJ max. | +150 °C - Enables use in under-hood automotive environments and thermally constrained industrial enclosures. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC standard. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads compliant with J-STD-002 and JESD22-B102. No polarity marking for bidirectional configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (either direction) | Acts as cathode during positive half-cycle; enables symmetrical clamping across both polarities. |
| Cathode | Transient current exit (either direction) | Acts as anode during negative half-cycle; eliminates need for orientation-aware PCB layout. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC signals, differential buses (e.g., RS-485), and ungrounded power rails without polarity constraints. |
| 600 W peak pulse power | Withstands IEC 61000-4-5 combination wave surges up to 4 A (line-to-earth) or 2 A (line-to-line) when used with appropriate series impedance. |
| AEC-Q101 qualification | Validated for automotive applications including engine control units, body electronics, and ADAS sensor interfaces requiring long-term field reliability. |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without moisture sensitivity concerns or baking requirements. |
| Glass passivated junction | Ensures stable VBR over lifetime and improved resistance to humidity-induced parameter drift versus epoxy-passivated alternatives. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting analog output lines of pressure/temperature sensors in engine bay modules exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional TVS clamping element placed directly at connector interface to shunt transients before reaching ADC front-end. Use Value: Maintains signal fidelity under 12 V system surges up to ±100 V/500 ms while meeting AEC-Q101 stress requirements. |
Use Scenario: Safeguarding 24 V DC digital input channels on programmable logic controllers against induced switching transients from relay coils and solenoids. IC Role / Device Role / Timing Role: Fast-response overvoltage clamp on field-side inputs, coordinated with series current-limiting resistor and optocoupler isolation. Use Value: Limits transient voltage to ≤12.1 V during 49.6 A spikes, preventing latch-up or damage to microcontroller GPIO pins. |
| Consumer USB Port ESD Protection | Telecom Line Interface Protection |
|
Use Scenario: Secondary-level ESD protection on USB 2.0 D+/D− lines downstream of primary polymer-based TVS, targeting IEC 61000-4-2 ±15 kV contact discharge. IC Role / Device Role / Timing Role: Low-capacitance (CJ ≈ 200 pF at 0 V) bidirectional clamp absorbing residual ESD energy after primary suppression. Use Value: Clamps to 12.1 V within <1 ns, preserving signal rise time and ensuring USB full-speed timing margins remain intact. |
Use Scenario: Protecting Ethernet PHY line drivers and receivers in PoE-powered network switches against lightning-induced surges on RJ45 ports. IC Role / Device Role / Timing Role: Common-mode transient suppressor across differential pairs, paired with gas discharge tube (GDT) for high-energy diversion. Use Value: Provides precise 7.02 V standoff to avoid interference with 2.5 V/3.3 V PHY biasing while clamping common-mode surges to safe levels. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient 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 non-AEC-Q101 rated. | Limited to commercial/industrial use; lacks automotive qualification and MSL Level 1 reflow assurance. | Select when AEC-Q101 is not required and cost sensitivity outweighs automotive reliability needs. |
| SMCJ8.0CA | 8.0 V VWM, 12.0 V VC at 113 A, higher PPPM (1500 W), larger SMC (DO-214AB) package. | Requires larger PCB footprint and different thermal management; suited for higher-energy surge environments. | Choose for applications needing >600 W surge handling where board space allows SMC footprint. |
Compared with SMAJ8.0CA and SMCJ8.0CA, P6SMB8.2CAHE3_B/H uniquely combines AEC-Q101 qualification, SMB footprint, and optimized clamping ratio (1.48) for space-constrained automotive signal protection-without sacrificing surge robustness or manufacturability.
Availability
P6SMB8.2CAHE3_B/H is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, consumer USB port hardening, and telecom line interface protection requiring stable component supply and long-term lifecycle support.
Supply support for P6SMB8.2CAHE3_B/H 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 communications systems, delivering standardized 600 W surge capability in compact SMB packages with AEC-Q101 and RoHS compliance.
FAQ
What does the "CA" suffix indicate in P6SMB8.2CAHE3_B/H?
The "CA" suffix denotes a bidirectional configuration, meaning the P6SMB8.2CAHE3_B/H provides symmetrical clamping for both positive and negative transients without polarity dependence. This differs from unidirectional "A" variants, which require correct anode/cathode orientation and only clamp in one direction. The CA version is ideal for AC-coupled or differential signal lines where voltage polarity reverses.
Is P6SMB8.2CAHE3_B/H suitable for automotive applications?
Yes, P6SMB8.2CAHE3_B/H is AEC-Q101 qualified and carries the "HE3" and "_B" suffixes indicating RoHS-compliant, halogen-free, and automotive-grade construction. It has passed stress tests including temperature cycling, high-temperature reverse bias (HTRB), and ESD per AEC-Q101, making it suitable for engine control units, body electronics, and ADAS sensor interfaces.
What is the clamping voltage of P6SMB8.2CAHE3_B/H under surge conditions?
The P6SMB8.2CAHE3_B/H has a maximum clamping voltage (VC) of 12.1 V at 49.6 A peak pulse current (IPPM), measured using the standard 10/1000 μs waveform. This value reflects the worst-case voltage imposed on the protected circuit during a 600 W transient event and is critical for ensuring downstream ICs remain within absolute maximum ratings.
How does the SMB (DO-214AA) package of P6SMB8.2CAHE3_B/H compare to larger TVS packages?
The SMB (DO-214AA) package of P6SMB8.2CAHE3_B/H measures 3.94 mm × 2.20 mm × 1.52 mm and offers a compact footprint versus SMC (DO-214AB) or SMCJ series. While it delivers 600 W peak power, its thermal resistance (RθJA = 100 °C/W) requires adherence to the recommended 0.2" × 0.2" copper pad layout to maintain safe junction temperatures during repetitive surges.
Does P6SMB8.2CAHE3_B/H require special handling during PCB assembly?
No special handling is required for P6SMB8.2CAHE3_B/H beyond standard SMT practices. It is rated MSL Level 1 with a maximum peak reflow temperature of 260 °C, fully compatible with lead-free soldering profiles. Matte tin-plated leads meet J-STD-002 and JESD22-B102, and no pre-baking is needed prior to reflow.
P6SMB8.2CAHE3_B/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, TransZorb®
- Packaging:
- Bulk
- 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/H FAQ
1.How can I place an order for P6SMB8.2CAHE3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB8.2CAHE3_B/H 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/H reliable?
The price and inventory of P6SMB8.2CAHE3_B/H 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/H is usually 5 days.
3.What payment methods are accepted for P6SMB8.2CAHE3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB8.2CAHE3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB8.2CAHE3_B/H?
P6SMB8.2CAHE3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB8.2CAHE3_B/H 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/H?
For technical support, including P6SMB8.2CAHE3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB8.2CAHE3_B/H requirements.
6.How does Aetrix verify that P6SMB8.2CAHE3_B/H is sourced from the original manufacturer or authorized distributors?
All P6SMB8.2CAHE3_B/H 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/H meets industry standards.
7.What is the process for return or replacement of P6SMB8.2CAHE3_B/H?
All P6SMB8.2CAHE3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB8.2CAHE3_B/H, 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/H part is unused and in its original packaging.
Return procedure for P6SMB8.2CAHE3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB8.2CAHE3_B/H Tags
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