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Vishay General Semiconductor - Diodes Division P6SMB8.2AHE3_B/H
- Part No.:
- P6SMB8.2AHE3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB8.2AHE3_B/H.pdf
- Description:
- 600W,8.2V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:8,795
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Product details
Overview
P6SMB8.2AHE3_B/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, rated for 600 W peak pulse power (10/1000 μs), 7.79–8.61 V breakdown voltage at 10 mA, and 12.1 V maximum clamping voltage at 49.6 A peak pulse current. It protects MOSFETs, ICs, and sensor signal lines against inductive switching transients and ESD in automotive and industrial power rails.
For engineers reviewing the P6SMB8.2AHE3_B/H datasheet, P6SMB8.2AHE3_B/H pinout, P6SMB8.2AHE3_B/H application, or P6SMB8.2AHE3_B/H equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), clamping performance under surge, and direct alternatives with documented differences in standoff voltage and automotive compliance.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-band polarity marking, designed to shunt transient energy above its reverse standoff voltage (VWM = 7.02 V) while maintaining low leakage (<200 μA) below that threshold. Its glass-passivated junction ensures stable breakdown and fast response time (<1 ns).
It is rated for repetitive 10/1000 μs surges at 0.01% duty cycle, derated linearly above 25 °C ambient per Fig. 2, and qualified to AEC-Q101 for automotive use - confirmed by the "HE3_B" suffix denoting RoHS-compliant, AEC-Q101-qualified construction with MSL Level 1 moisture sensitivity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 7.79 V to 8.61 V at IT = 10 mA - defines precise voltage threshold where avalanche conduction begins reliably |
| VWM | 7.02 V - maximum continuous reverse operating voltage before significant leakage; sets safe margin below VBR |
| VC @ IPPM | 12.1 V at 49.6 A - clamping voltage during 600 W transient; determines protected circuit's worst-case overvoltage exposure |
| PPPM | 600 W (10/1000 μs waveform) - peak surge energy handling capacity; enables protection against ISO 7637-2 Pulse 1/2a/5a |
| IDRM @ VWM | <200 μA - ultra-low reverse leakage preserves signal integrity and minimizes standby power loss in high-impedance nodes |
| RθJA | 100 °C/W - thermal resistance from junction to ambient on standard 0.2" × 0.2" copper pads; informs derating for sustained surge duty |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD robustness per stress test plan |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102; meets UL 94 V-0 flammability rating.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink node | Connected to protected line; conducts surge current to ground when VREV > VBR |
| Anode | Reference/ground return path | Typically tied to system ground or low-impedance return plane; completes clamping current loop |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables robust protection against severe load-dump and inductive kick events without thermal runaway |
| AEC-Q101 qualification (HE3_B suffix) | Validated for automotive powertrain and body electronics requiring extended temperature operation and long-term reliability |
| Glass-passivated junction | Ensures stable VBR tolerance (±5%), low leakage drift over life, and immunity to humidity-induced parameter shift |
| MSL Level 1 (260 °C peak reflow) | Supports standard lead-free SMT assembly without pre-baking or special handling |
| Low clamping ratio (VC/VBR ≈ 1.49) | Minimizes overvoltage stress on downstream ICs compared to higher-ratio TVS devices |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Clamping |
|---|---|
|
Use Scenario: Protecting 12 V battery-fed ECUs from ISO 7637-2 Pulse 1 (inductive switch-off) and Pulse 5a (load dump). IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp transients before they reach LDOs or microcontrollers. Use Value: Limits rail voltage to ≤12.1 V during 49.6 A surges, preventing latch-up or gate oxide damage in automotive-grade MCUs. |
Use Scenario: Safeguarding analog outputs of pressure/temperature sensors connected to PLC I/O modules. IC Role / Device Role / Timing Role: Low-capacitance TVS on differential signal pair (e.g., 4–20 mA loop) to suppress EFT bursts without distorting DC accuracy. Use Value: Sub-200 μA leakage at 7.02 V avoids loading high-impedance sensor outputs; 12.1 V clamping prevents ADC input saturation. |
| Consumer Power Adapter Input Stage | Telecom DC Power Feeds |
|
Use Scenario: Secondary-side overvoltage suppression in AC/DC adapters after rectification and bulk capacitance. IC Role / Device Role / Timing Role: Standoff-rated TVS across +VOUT and GND to absorb flyback spikes from transformer leakage inductance. Use Value: 7.02 V VWM allows compatibility with 5 V/9 V/12 V output rails; 600 W rating handles repeated 10/1000 μs surges during hot-plug events. |
Use Scenario: Front-end protection of -48 V telecom power distribution boards exposed to lightning-induced surges. IC Role / Device Role / Timing Role: Unidirectional TVS on supply input to protect DC/DC converters and monitoring ICs from common-mode transients. Use Value: AEC-Q101 qualification ensures survivability in harsh outdoor cabinet environments; RθJA = 100 °C/W supports natural convection cooling. |
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 | VBR = 8.89–9.83 V; VWM = 7.2 V; VC = 12.5 V @ 48.0 A; non-AEC-Q101 | Higher VBR and VC reduce clamping margin; lacks automotive qualification | Select when AEC-Q101 is not required and tighter VWM/VBR matching is unnecessary |
| 1.5SMC8.2A | VBR = 7.79–8.61 V; VWM = 7.02 V; VC = 12.1 V @ 49.6 A; same electrical specs but SMC (DO-214AB) package | SMC package has larger footprint (2.79 mm vs. 2.20 mm width) and higher thermal mass | Select when board layout allows larger package and enhanced thermal dissipation is prioritized over space-constrained placement |
Compared with P6SMB8.2AHE3_B/H, SMAJ8.0A trades automotive reliability for broader commercial availability, while 1.5SMC8.2A retains identical electrical behavior but requires PCB redesign due to larger SMC footprint - making P6SMB8.2AHE3_B/H optimal for space-limited AEC-Q101 designs.
Availability
P6SMB8.2AHE3_B/H is available at Aetrix Electronics and suitable for automotive ECU protection, industrial sensor interface circuits, and telecom power feed applications requiring stable component supply, AEC-Q101 validation, and consistent 600 W surge capability.
Supply support for P6SMB8.2AHE3_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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and precision.
The P6SMB Series targets cost-sensitive, high-volume transient protection needs in automotive, industrial, and consumer systems - engineered for automated SMT assembly, AEC-Q101 compliance, and repeatable clamping performance across temperature.
FAQ
What is the breakdown voltage tolerance of P6SMB8.2AHE3_B/H?
The P6SMB8.2AHE3_B/H has a specified breakdown voltage range of 7.79 V to 8.61 V at 10 mA test current, representing a ±5% tolerance around the nominal 8.2 V rating. This tight VBR window ensures predictable clamping onset across production lots and temperature extremes, critical for protecting sensitive 5 V or 12 V logic interfaces. The P6SMB8.2AHE3_B/H maintains this specification under AEC-Q101 stress conditions.
Is P6SMB8.2AHE3_B/H suitable for bidirectional transient suppression?
No, P6SMB8.2AHE3_B/H is a unidirectional TVS diode, indicated by the "A" suffix and cathode band marking. For bidirectional protection, Vishay offers the P6SMB8.2CA variant. Using P6SMB8.2AHE3_B/H in bidirectional applications risks forward conduction during negative transients, potentially damaging the device or failing to clamp. Always verify polarity alignment in circuit design - the P6SMB8.2AHE3_B/H must be oriented with cathode toward the protected line.
What does the "HE3_B/H" suffix mean in P6SMB8.2AHE3_B/H?
The "HE3" denotes RoHS-compliant construction with AEC-Q101 qualification; "B" indicates AEC-Q101 qualification level for the 6.8 V to 220 V voltage range; "H" specifies 7" diameter tape-and-reel packaging with 750 units per reel. This full suffix confirms P6SMB8.2AHE3_B/H meets automotive reliability standards, environmental compliance, and SMT assembly requirements - distinct from commercial-grade E3 or M3 variants.
How does the clamping voltage of P6SMB8.2AHE3_B/H compare to its standoff voltage?
P6SMB8.2AHE3_B/H has a VWM of 7.02 V and a VC of 12.1 V at 49.6 A, yielding a clamping ratio of ~1.72. This ratio reflects the voltage overhead required to divert 600 W surges while limiting power dissipation in the junction. The 12.1 V clamping level ensures downstream 12 V-rated ICs remain within absolute maximum ratings during transients - a key design margin confirmed in Vishay's P6SMB8.2AHE3_B/H characterization data.
Can P6SMB8.2AHE3_B/H replace P6SMB8.2A-E3 in an existing design?
Yes, P6SMB8.2AHE3_B/H is a drop-in replacement for P6SMB8.2A-E3 in terms of electrical specs and SMB package dimensions, but adds AEC-Q101 qualification and RoHS compliance. No PCB changes are needed. However, the HE3_B/H variant undergoes additional automotive stress testing (e.g., temperature cycling, HTRB), making it preferable for automotive or high-reliability industrial use - whereas P6SMB8.2A-E3 remains suitable for commercial applications. Both share identical P6SMB8.2AHE3_B/H VBR, VWM, and VC values.
P6SMB8.2AHE3_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:
- 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:
- 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)
P6SMB8.2AHE3_B/H FAQ
1.How can I place an order for P6SMB8.2AHE3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB8.2AHE3_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 P6SMB8.2AHE3_B/H reliable?
The price and inventory of P6SMB8.2AHE3_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 P6SMB8.2AHE3_B/H is usually 5 days.
3.What payment methods are accepted for P6SMB8.2AHE3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB8.2AHE3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB8.2AHE3_B/H?
P6SMB8.2AHE3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB8.2AHE3_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 P6SMB8.2AHE3_B/H?
For technical support, including P6SMB8.2AHE3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB8.2AHE3_B/H requirements.
6.How does Aetrix verify that P6SMB8.2AHE3_B/H is sourced from the original manufacturer or authorized distributors?
All P6SMB8.2AHE3_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 P6SMB8.2AHE3_B/H meets industry standards.
7.What is the process for return or replacement of P6SMB8.2AHE3_B/H?
All P6SMB8.2AHE3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB8.2AHE3_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 P6SMB8.2AHE3_B/H part is unused and in its original packaging.
Return procedure for P6SMB8.2AHE3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB8.2AHE3_B/H Tags
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