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Vishay General Semiconductor - Diodes Division P6SMB8.2AHE3/5B
- Part No.:
- P6SMB8.2AHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB8.2AHE3/5B.pdf
- Description:
- TVS DIODE 7.02VWM 12.1VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,012
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Product details
Overview
P6SMB8.2AHE3/5B 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 minimum breakdown voltage (VBR), 7.02 V standoff voltage (VWM), 12.1 V maximum clamping voltage (VC) 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 interfaces in automotive and industrial power supplies.
For engineers reviewing the P6SMB8.2AHE3/5B datasheet, P6SMB8.2AHE3/5B pinout, P6SMB8.2AHE3/5B application, or P6SMB8.2AHE3/5B equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), polarity marking convention, and real-world protection use cases aligned with IEC 61000-4-5 surge immunity requirements.
Technical Context
The P6SMB8.2AHE3/5B operates as a unidirectional avalanche diode with cathode-band polarity marking, optimized for fast transient suppression (<1 ns response time) in DC power rails and low-voltage signal paths. Its glass-passivated junction ensures stable leakage performance (≤200 μA at VWM) and robust surge handling under repetitive 0.01% duty cycle conditions.
Designed for surface-mount assembly on 5.0 mm × 5.0 mm copper pads per terminal, it meets J-STD-020 MSL Level 1 (260 °C peak reflow) and supports automated placement. The device is AEC-Q101 qualified (HE3 suffix + revision B), confirming suitability for automotive electronics where reliability under thermal cycling and mechanical shock is critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Standoff) | 7.02 V - Maximum continuous reverse voltage before significant leakage; defines safe operating margin below clamping threshold |
| VBR (Breakdown) | 7.79–8.61 V at 10 mA - Avalanche onset range; ensures predictable turn-on during overvoltage events |
| VC (Clamping) | 12.1 V at 49.6 A - Peak voltage seen by protected circuit during 10/1000 μs surge; determines downstream component stress |
| PPPM | 600 W - Peak pulse power dissipation capability; enables protection against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) |
| IPPM | 49.6 A - Peak pulse current supported at VC; directly correlates with surge energy absorption (≈0.3 J for 10/1000 μs) |
| TJ max | +150 °C - Maximum junction temperature; allows operation in under-hood automotive environments with minimal derating |
| RθJA | 100 °C/W - Thermal resistance junction-to-ambient; informs PCB copper pad sizing and airflow requirements for sustained pulse handling |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, matte tin-plated leads, RoHS-compliant and AEC-Q101 qualified (HE3 suffix + revision B). Cathode indicated by band; anode is unmarked end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts surge current to ground when VWM exceeded |
| Anode (unbanded end) | Reference node | Typically tied to system ground or lower-potential rail; completes clamping path during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock testing |
| Glass passivated junction | Ensures stable VBR tolerance (±5%) and low leakage (<200 μA) across -65 °C to +150 °C operating range |
| 600 W peak pulse rating | Supports single-event surge currents up to 49.6 A without degradation, meeting IEC 61000-4-5 compliance thresholds |
| MSL Level 1 moisture sensitivity | Enables standard SMT reflow without baking; compatible with high-volume automated assembly lines |
| Low clamping ratio (VC/VBR ≈ 1.5) | Minimizes overvoltage exposure to downstream components - critical for 5 V and 3.3 V logic-level circuits |
Applications
| Automotive Power Supply Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VBAT and GND to clamp spikes above 13.5 V. Use Value: Limits transient voltage to ≤12.1 V, preventing damage to LDO regulators and CAN transceivers rated for 16 V absolute maximum. |
Use Scenario: Shielding analog output lines of pressure/temperature sensors from ESD and cable discharge events. IC Role / Device Role / Timing Role: TVS mounted at connector entry point to shunt fast-rising transients before reaching ADC input stage. Use Value: Clamps 8 kV contact ESD (IEC 61000-4-2) within <1 ns, preserving signal integrity and avoiding ADC saturation or latch-up. |
| Consumer Power Adapter Input Stage | Telecom Line Card Surge Protection |
Use Scenario: Safeguarding primary-side controller ICs in AC/DC adapters subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Placed across bulk capacitor terminals to absorb differential-mode energy from mains transients. Use Value: Absorbs up to 0.3 J per event (10/1000 μs), extending capacitor lifetime and reducing failure rate in field-deployed units. |
Use Scenario: Protecting Ethernet PHY interface pins on network switches exposed to induced surges via long cable runs. IC Role / Device Role / Timing Role: Unidirectional TVS on each data pair (TX+/TX−, RX+/RX−) referenced to chassis ground. Use Value: Maintains signal bandwidth (CJ < 100 pF at 0 V) while limiting common-mode surges to <12.1 V, ensuring link stability post-surge. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ8.0A | Lower VWM (6.4 V), higher VC (12.5 V), same SMB package and 600 W rating | Marginally tighter VWM may increase leakage at 7 V nominal rails; less headroom before clamping | Select when tighter VWM tolerance is required and 0.4 V lower standoff is acceptable |
| 1.5SMC8.2A | Same VWM/VBR/VC, but larger SMC (DO-214AB) package with higher RθJA (60 °C/W) and 1.5 kW rating | Overqualified for 600 W needs; requires larger PCB area and different reflow profile due to mass | Choose only if future design scalability to higher surge levels is anticipated and board space permits |
Compared with SMAJ8.0A and 1.5SMC8.2A, the P6SMB8.2AHE3/5B offers optimal balance of AEC-Q101 qualification, precise 7.02 V standoff, compact SMB footprint, and verified 12.1 V clamping - making it the preferred choice for space-constrained automotive and industrial designs requiring production-grade reliability.
Availability
P6SMB8.2AHE3/5B is available at Aetrix Electronics and suitable for automotive control units, industrial sensor modules, and telecom power supply designs requiring stable component supply, AEC-Q101 traceability, and consistent surge performance across manufacturing lots.
Supply support for P6SMB8.2AHE3/5B 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, rectifiers, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The P6SMB Series targets high-reliability transient suppression in automotive, industrial, and consumer systems - engineered for fast response, low clamping, and robust surge endurance in surface-mount form factors.
FAQ
What is the maximum clamping voltage of the P6SMB8.2AHE3/5B under a 10/1000 μs surge?
The P6SMB8.2AHE3/5B 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 per standard test conditions (TA = 25 °C, mounted on 5.0 mm × 5.0 mm copper pads) and defines the upper voltage limit imposed on protected circuitry during surge events. The P6SMB8.2AHE3/5B maintains this clamping performance across its full operating temperature range.
Is the P6SMB8.2AHE3/5B qualified for automotive applications?
Yes, the P6SMB8.2AHE3/5B is AEC-Q101 qualified, as confirmed by the "HE3" base part suffix and revision "B" designation in the ordering code. This qualification covers stress tests including temperature cycling, high-temperature operating life, and mechanical shock - validating its suitability for under-hood and body-control module applications. The P6SMB8.2AHE3/5B meets automotive-grade reliability requirements without derating.
What does the "5B" suffix indicate in P6SMB8.2AHE3/5B?
The "5B" suffix in P6SMB8.2AHE3/5B specifies the packaging configuration: 13-inch diameter plastic tape and reel, with 3200 units per reel. This format supports high-volume SMT assembly and is distinct from the "52" suffix (7-inch reel, 750 units). The "HE3" portion confirms RoHS compliance and AEC-Q101 qualification, while "B" denotes the revision level per Vishay's documentation.
How does the P6SMB8.2AHE3/5B compare to bidirectional TVS diodes like P6SMB8.2CA?
The P6SMB8.2AHE3/5B is unidirectional and intended for DC line protection where polarity is fixed (e.g., VBAT to GND), offering lower leakage and sharper knee characteristics. In contrast, P6SMB8.2CA is bidirectional and suited for AC or floating signal lines. The P6SMB8.2AHE3/5B cannot replace P6SMB8.2CA in symmetrical surge environments without circuit redesign due to polarity dependence and absence of reverse conduction capability.
What is the thermal resistance of the P6SMB8.2AHE3/5B, and how does it affect layout?
The P6SMB8.2AHE3/5B has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on minimum recommended 5.0 mm × 5.0 mm copper pads per terminal. This value guides PCB layout: reducing pad size or omitting thermal vias increases junction temperature during repetitive surges, potentially degrading clamping consistency. For high-duty-cycle applications, increasing copper area or adding thermal vias is advised to maintain P6SMB8.2AHE3/5B reliability.
P6SMB8.2AHE3/5B 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:
- Discontinued at Digi-Key
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB8.2AHE3/5B FAQ
1.How can I place an order for P6SMB8.2AHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB8.2AHE3/5B 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 P6SMB8.2AHE3/5B reliable?
The price and inventory of P6SMB8.2AHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB8.2AHE3/5B is usually 5 days.
3.What payment methods are accepted for P6SMB8.2AHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB8.2AHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB8.2AHE3/5B?
P6SMB8.2AHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB8.2AHE3/5B 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 P6SMB8.2AHE3/5B?
For technical support, including P6SMB8.2AHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB8.2AHE3/5B requirements.
6.How does Aetrix verify that P6SMB8.2AHE3/5B is sourced from the original manufacturer or authorized distributors?
All P6SMB8.2AHE3/5B 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 P6SMB8.2AHE3/5B meets industry standards.
7.What is the process for return or replacement of P6SMB8.2AHE3/5B?
All P6SMB8.2AHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB8.2AHE3/5B, 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 P6SMB8.2AHE3/5B part is unused and in its original packaging.
Return procedure for P6SMB8.2AHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB8.2AHE3/5B Tags
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