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Vishay General Semiconductor - Diodes Division P6SMB8.2AHM3_B/I
- Part No.:
- P6SMB8.2AHM3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB8.2AHM3_B/I.pdf
- Description:
- 600W,8.2V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:6,870
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Product details
Overview
P6SMB8.2AHM3_B/I 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 a 7.79 V to 8.61 V breakdown voltage (VBR) at 10 mA, 7.02 V maximum stand-off voltage (VWM), and clamps to ≤12.1 V at 49.6 A peak pulse current (IPPM) under 10/1000 μs waveform - used in automotive sensor protection and industrial I/O interface surge suppression.
For engineers reviewing the P6SMB8.2AHM3_B/I datasheet, P6SMB8.2AHM3_B/I pinout, P6SMB8.2AHM3_B/I application, or P6SMB8.2AHM3_B/I equivalent, key selection criteria include its AEC-Q101 qualification, 600 W peak pulse power rating, low 0.065 %/°C VBR temperature coefficient, and halogen-free RoHS-compliant construction with matte tin-plated leads.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-band polarity marking, leveraging glass-passivated junction technology for stable avalanche behavior and fast response (<1 ns). Its thermal resistance (RθJA = 100 °C/W) and junction temperature limit of 150 °C support operation in compact PCB layouts with minimal copper pad area (0.2" × 0.2").
The device meets J-STD-020 MSL Level 1 (peak reflow 260 °C), supports 100 A non-repetitive forward surge current (IFSM), and delivers consistent clamping performance across -65 °C to +150 °C operating range - critical for automotive-grade reliability in engine control units and ADAS sensor interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 7.79 V / 8.61 V at 10 mA - defines precise avalanche initiation threshold for repeatable transient suppression |
| VWM | 7.02 V - maximum continuous reverse voltage before leakage exceeds 200 μA, ensuring no false triggering during normal operation |
| VC @ IPPM | ≤12.1 V at 49.6 A (10/1000 μs) - limits downstream IC stress during ESD or load-dump events |
| PPPM | 600 W - peak pulse power handling capability enables robust protection against IEC 61000-4-5 surges |
| IFSM | 100 A (8.3 ms half-sine) - withstands high-energy inductive turn-off spikes without degradation |
| TJ max | +150 °C - supports under-hood automotive environments and industrial enclosures without derating |
| Temperature Coefficient | +0.065 %/°C - ensures stable VBR over temperature, minimizing design margin uncertainty |
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. Cathode identified by band marking; anode is unmarked end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient clamp output node | Connected to protected line; conducts during overvoltage to shunt energy to ground |
| Anode (unbanded end) | Reference/return path | Typically tied to system ground or lower-potential rail; completes clamping current path |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including powertrain and body electronics per stress test requirements |
| Halogen-free & RoHS-compliant | Meets environmental compliance for global OEM supply chains without compromising surge robustness |
| 600 W peak pulse power (10/1000 μs) | Handles high-energy transients common in 12 V/24 V vehicle systems and industrial PLCs |
| Low incremental surge resistance | Minimizes clamping voltage overshoot during fast-rising transients (e.g., ISO 7637-2 Pulse 1/2a) |
| MSL Level 1 moisture sensitivity | Enables standard SMT reflow without baking, reducing manufacturing complexity and cost |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ESD in engine control modules. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between signal line and chassis ground to limit voltage excursions below IC absolute maximum ratings. Use Value: Clamps 70 V load dump transients to ≤12.1 V within nanoseconds, preventing latch-up or gate oxide damage in connected microcontrollers and transceivers. |
Use Scenario: Safeguarding RS-485/RS-232 communication ports on programmable logic controllers against induced surges from nearby motor switching. IC Role / Device Role / Timing Role: Standoff voltage (7.02 V) matches typical 5 V/3.3 V logic rails; clamps fast transients before data corruption occurs. Use Value: Delivers 49.6 A peak pulse current handling with <1 ns response, maintaining signal integrity during 4 kV EFT bursts per IEC 61000-4-4. |
| Consumer Power Adapter Input | Telecom DC Power Feed |
Use Scenario: Secondary-side overvoltage protection on 5–12 V SMPS outputs feeding USB-C PD controllers or display backlight drivers. IC Role / Device Role / Timing Role: Unidirectional TVS placed after rectifier but before LDO regulator to absorb residual switching spikes and lightning-induced surges. Use Value: Withstands 100 A surge (8.3 ms) and maintains <200 μA leakage at 7.02 V, avoiding regulator dropout or thermal shutdown during normal operation. |
Use Scenario: DC feed line protection in PoE-powered base stations and remote radio units exposed to outdoor lightning coupling. IC Role / Device Role / Timing Role: Primary-stage clamping device on 48 V DC input, coordinated with upstream GDT or MOV for staged surge diversion. Use Value: 600 W peak power rating and 150 °C junction rating ensure reliable operation in sealed telecom enclosures with limited airflow. |
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 VBR (7.6–8.4 V), same SMB package, 400 W PPPM, non-AEC-Q101 | Not qualified for automotive use; suitable for commercial-grade consumer or computing power rails | Select when AEC-Q101 is not required and 400 W surge capacity suffices |
| 1.5SMC8.2A | Same VBR/VWM, higher PPPM (1500 W), larger SMC (DO-214AB) package, non-AEC-Q101 | Requires larger PCB footprint; better for high-energy industrial mains-side protection | Choose when higher surge margin is needed and board space allows SMC footprint |
Compared with SMAJ8.0A and 1.5SMC8.2A, P6SMB8.2AHM3_B/I uniquely combines AEC-Q101 qualification, halogen-free construction, and 600 W capability in the compact SMB outline - making it the preferred choice for space-constrained automotive and industrial designs requiring certified reliability.
Availability
P6SMB8.2AHM3_B/I is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, and telecom DC power feeds requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for P6SMB8.2AHM3_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 robustness under harsh electrical and thermal conditions while meeting stringent environmental standards.
FAQ
What is the breakdown voltage tolerance for P6SMB8.2AHM3_B/I?
The P6SMB8.2AHM3_B/I has a specified breakdown voltage (VBR) range of 7.79 V to 8.61 V at 10 mA test current, representing ±5% tolerance around the nominal 8.2 V rating. This tight tolerance ensures predictable clamping onset across production lots and temperature extremes, critical for protecting sensitive 5 V or 3.3 V logic interfaces without premature conduction.
Is P6SMB8.2AHM3_B/I suitable for bidirectional transient protection?
No, P6SMB8.2AHM3_B/I is a unidirectional TVS diode, indicated by the "A" suffix and cathode band marking. For bidirectional protection, Vishay offers the P6SMB8.2CA variant. Using P6SMB8.2AHM3_B/I in bidirectional applications risks forward conduction during negative transients, potentially damaging the device or failing to suppress.
Does P6SMB8.2AHM3_B/I meet automotive qualification standards?
Yes, P6SMB8.2AHM3_B/I is AEC-Q101 qualified, as confirmed by the "HM3_B" suffix per Vishay's ordering nomenclature. This qualification covers stress tests including HTGB, HTRB, TCT, and ESD, validating its suitability for automotive powertrain, body, and ADAS applications where reliability under thermal and electrical stress is mandatory.
What is the maximum clamping voltage of P6SMB8.2AHM3_B/I under surge conditions?
The maximum clamping voltage (VC) of P6SMB8.2AHM3_B/I is 12.1 V at 49.6 A peak pulse current (IPPM) with a 10/1000 μs waveform. This value is guaranteed across temperature and lifetime, enabling designers to verify that downstream ICs remain within their absolute maximum voltage ratings during standardized surge events like ISO 7637-2 or IEC 61000-4-5.
How does the "HM3_B/I" suffix in P6SMB8.2AHM3_B/I affect packaging and compliance?
The "HM3" denotes halogen-free, RoHS-compliant construction; "B" indicates AEC-Q101 qualification; and "I" specifies 3200-unit quantity on 13-inch tape-and-reel. This full suffix confirms P6SMB8.2AHM3_B/I meets automotive environmental and packaging requirements - including JESD 201 Class 2 whisker resistance and J-STD-020 MSL Level 1 reflow compatibility - without requiring process deviations.
P6SMB8.2AHM3_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:
- 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)
P6SMB8.2AHM3_B/I FAQ
1.How can I place an order for P6SMB8.2AHM3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB8.2AHM3_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 P6SMB8.2AHM3_B/I reliable?
The price and inventory of P6SMB8.2AHM3_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 P6SMB8.2AHM3_B/I is usually 5 days.
3.What payment methods are accepted for P6SMB8.2AHM3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB8.2AHM3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB8.2AHM3_B/I?
P6SMB8.2AHM3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB8.2AHM3_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 P6SMB8.2AHM3_B/I?
For technical support, including P6SMB8.2AHM3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB8.2AHM3_B/I requirements.
6.How does Aetrix verify that P6SMB8.2AHM3_B/I is sourced from the original manufacturer or authorized distributors?
All P6SMB8.2AHM3_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 P6SMB8.2AHM3_B/I meets industry standards.
7.What is the process for return or replacement of P6SMB8.2AHM3_B/I?
All P6SMB8.2AHM3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB8.2AHM3_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 P6SMB8.2AHM3_B/I part is unused and in its original packaging.
Return procedure for P6SMB8.2AHM3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB8.2AHM3_B/I Tags
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