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Vishay General Semiconductor - Diodes Division P6SMB8.2AHE3/52
- Part No.:
- P6SMB8.2AHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB8.2AHE3/52.pdf
- Description:
- TVS DIODE 7.02VWM 12.1VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,780
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Product details
Overview
P6SMB8.2AHE3/52 from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping transient overvoltages on power and signal lines. It features 7.79 V minimum breakdown voltage (VBR), 7.02 V maximum stand-off voltage (VWM), 12.1 V clamping voltage (VC) at 49.6 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial power supplies.
For engineers reviewing the P6SMB8.2AHE3/52 datasheet, P6SMB8.2AHE3/52 pinout, P6SMB8.2AHE3/52 application, or P6SMB8.2AHE3/52 equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification status, 12.1 V clamping performance under 49.6 A surge, thermal resistance (RθJA = 100 °C/W), and RoHS-compliant matte tin-plated leads compatible with J-STD-002 soldering standards.
Technical Context
This TVS diode operates as a voltage-clamping protection device that enters avalanche conduction when reverse voltage exceeds its breakdown threshold (7.79–8.61 V). Its low incremental surge resistance and fast response time enable effective suppression of ESD, lightning-induced surges, and inductive switching transients on DC rails and low-speed signal paths.
Designed for surface-mount assembly on 0.2" × 0.2" copper pads per terminal, it delivers 600 W peak pulse power handling with 0.01% duty cycle repetition, derated above 25 °C per Fig. 2, and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak temperature tolerance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 7.79 V / 8.61 V - defines precise avalanche onset range for reliable triggering without false conduction |
| VWM | 7.02 V - maximum continuous reverse operating voltage before leakage exceeds 200 μA |
| VC @ IPPM | 12.1 V at 49.6 A - clamped voltage during 10/1000 µs surge, limiting stress on downstream components |
| PPPM | 600 W - peak transient power dissipation capability under standardized surge waveform |
| IFSM | 100 A - non-repetitive forward surge current rating (8.3 ms half-sine), relevant for fault-current limiting |
| TJ max | +150 °C - maximum junction temperature enabling operation in under-hood automotive environments |
| RθJA | 100 °C/W - thermal resistance from junction to ambient, guiding PCB copper pad sizing for thermal management |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile plastic case with matte tin-plated leads; cathode indicated by band marking on unidirectional devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse voltage reference | Connected to lower-potential side of protected line; determines unidirectional conduction path |
| Cathode | Avalanche conduction output / Clamping node | Banded end; connected to higher-potential rail or signal line to divert surge current to ground |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables robust protection against IEC 61000-4-5 Level 4 surges (4 kV) without degradation |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive powertrain and body electronics applications requiring zero-failure reliability |
| Glass passivated chip junction | Improves long-term stability and moisture resistance versus epoxy-passivated alternatives |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow profiles without preconditioning or baking |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, enhancing clamping precision |
Applications
| Automotive Power Supply Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VBAT and GND to clamp surges up to ±100 V. Use Value: Limits voltage seen by downstream LDOs and microcontrollers to ≤12.1 V during 49.6 A transients, preventing latch-up or gate oxide damage. | Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) from ESD and cable discharge events. IC Role / Device Role / Timing Role: TVS mounted at connector interface to shunt transients before reaching op-amp input stage. Use Value: Maintains signal integrity by clamping sub-100 ns ESD pulses to <12.1 V, avoiding ADC saturation or front-end damage. |
| Consumer Power Adapter Input Stage | Telecom Line Card Surge Protection |
Use Scenario: Safeguarding AC-DC adapter primary-side rectifier and controller ICs from mains-borne surges. IC Role / Device Role / Timing Role: Placed across bulk capacitor or bridge rectifier output to absorb line-to-ground transients. Use Value: Absorbs 600 W surges without failure, extending adapter lifetime in regions with unstable grid conditions. | Use Scenario: Protecting Ethernet PHY and PoE controller inputs on network switches exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Bidirectional variants (e.g., P6SMB8.2CA) used on differential pairs; unidirectional version applied to supply rails. Use Value: Ensures continuity of data transmission by limiting surge-induced common-mode voltage excursions to safe levels. |
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 peak pulse power (400 W), same SMB package, VBR = 8.89–9.82 V, VC = 12.5 V @ 32 A | Less robust for high-energy surges; suitable only where IEC 61000-4-5 Level 3 compliance suffices | Select SMAJ8.0A only if system-level surge testing confirms 400 W margin is sufficient and cost sensitivity outweighs derating headroom. |
| 1.5SMC8.2A | Higher package thermal mass (SMC/DO-214AB), same VBR/VC, 600 W rating, RθJA ≈ 50 °C/W | Requires larger PCB footprint but enables higher sustained surge repetition rates due to improved thermal dissipation | Choose 1.5SMC8.2A when board space permits and repeated surge events (e.g., motor drive feedback loops) demand lower thermal impedance. |
Compared with SMAJ8.0A and 1.5SMC8.2A, P6SMB8.2AHE3/52 offers optimal balance of AEC-Q101 qualification, industry-standard SMB footprint, and verified 600 W surge capacity - making it preferred for space-constrained automotive and industrial designs requiring production-grade reliability.
Availability
P6SMB8.2AHE3/52 is available at Aetrix Electronics and suitable for automotive power modules, industrial sensor nodes, consumer power adapters, and telecom line cards requiring stable component supply with full traceability and lifecycle support.
Supply support for P6SMB8.2AHE3/52 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and automotive-grade qualification.
The P6SMB Series belongs to Vishay's TRANSZORB® TVS portfolio, engineered specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure where failure modes must be eliminated through AEC-Q101 validation and robust packaging.
FAQ
What is the clamping voltage of P6SMB8.2AHE3/52 and how is it measured?
The clamping voltage (VC) of P6SMB8.2AHE3/52 is 12.1 V, measured at 49.6 A peak pulse current using a 10/1000 µs double-exponential waveform per IEC 61000-4-5. This value represents the maximum voltage imposed on protected circuitry during a standardized surge event and is guaranteed across the full operating temperature range of −65 °C to +150 °C. The P6SMB8.2AHE3/52 maintains this clamping performance due to its low incremental surge resistance and glass-passivated junction structure.
Is P6SMB8.2AHE3/52 qualified for automotive applications?
Yes, P6SMB8.2AHE3/52 is AEC-Q101 qualified, as confirmed by the "HE3" suffix in its ordering code. This qualification covers stress tests including high-temperature operating life, temperature cycling, and ESD robustness, validating its use in automotive powertrain, body control, and infotainment systems. The P6SMB8.2AHE3/52 meets MSL Level 1 and supports lead-free reflow up to 260 °C, aligning with automotive manufacturing requirements.
What is the difference between P6SMB8.2AHE3/52 and P6SMB8.2A-E3/52?
P6SMB8.2AHE3/52 includes AEC-Q101 qualification and is intended for automotive-grade applications, while P6SMB8.2A-E3/52 is commercial-grade without automotive validation. Both share identical electrical parameters (VBR, VWM, VC, PPPM) and SMB packaging, but only the HE3 variant undergoes extended reliability testing per AEC-Q101. The P6SMB8.2AHE3/52 also carries halogen-free material compliance per Vishay's HM3/HE3 definitions, whereas E3 is RoHS-compliant only.
Can P6SMB8.2AHE3/52 be used in bidirectional configurations?
No, P6SMB8.2AHE3/52 is strictly unidirectional, as indicated by the "A" suffix and cathode band marking. For bidirectional operation, Vishay specifies part numbers ending in "CA", such as P6SMB8.2CA. Using P6SMB8.2AHE3/52 in reverse-biased configurations risks permanent damage due to lack of symmetrical avalanche characteristics. Always verify polarity alignment during PCB layout - the banded end of P6SMB8.2AHE3/52 must connect to the higher-potential node.
What is the thermal resistance and how does it affect PCB layout for P6SMB8.2AHE3/52?
P6SMB8.2AHE3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value assumes minimal copper area; increasing pad size or adding internal ground/power planes reduces RθJA and improves surge endurance. For repeated surge events, designers should allocate ≥25 mm² copper per pad and avoid thermal isolation - critical because P6SMB8.2AHE3/52 reaches 150 °C junction limit under worst-case 600 W pulses.
P6SMB8.2AHE3/52 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:
- 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)
P6SMB8.2AHE3/52 FAQ
1.How can I place an order for P6SMB8.2AHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB8.2AHE3/52 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 P6SMB8.2AHE3/52 reliable?
The price and inventory of P6SMB8.2AHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB8.2AHE3/52 is usually 5 days.
3.What payment methods are accepted for P6SMB8.2AHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB8.2AHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB8.2AHE3/52?
P6SMB8.2AHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB8.2AHE3/52 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 P6SMB8.2AHE3/52?
For technical support, including P6SMB8.2AHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB8.2AHE3/52 requirements.
6.How does Aetrix verify that P6SMB8.2AHE3/52 is sourced from the original manufacturer or authorized distributors?
All P6SMB8.2AHE3/52 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 P6SMB8.2AHE3/52 meets industry standards.
7.What is the process for return or replacement of P6SMB8.2AHE3/52?
All P6SMB8.2AHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB8.2AHE3/52, 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 P6SMB8.2AHE3/52 part is unused and in its original packaging.
Return procedure for P6SMB8.2AHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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