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Vishay General Semiconductor - Diodes Division P6SMB8.2AHM3_A/I
- Part No.:
- P6SMB8.2AHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB8.2AHM3_A/I.pdf
- Description:
- TVS DIODE 7.02VWM 12.1VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,243
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Product details
Overview
P6SMB8.2AHM3_A/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, with 8.2 V breakdown voltage (VBR = 7.79–8.61 V at 10 mA), 7.02 V stand-off voltage (VWM), and 12.1 V maximum clamping voltage (VC) at 49.6 A peak pulse current - designed for protecting power rails and signal lines in automotive and industrial control modules.
For engineers reviewing the P6SMB8.2AHM3_A/I datasheet, P6SMB8.2AHM3_A/I pinout, P6SMB8.2AHM3_A/I application, or P6SMB8.2AHM3_A/I equivalent, key selection criteria include its AEC-Q101 qualification, 600 W 10/1000 μs peak pulse power rating, low incremental surge resistance, and halogen-free RoHS-compliant construction under HM3 suffix.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-band polarity marking, optimized for fast transient suppression on DC power inputs and low-voltage logic interfaces. Its glass-passivated junction ensures stable leakage performance (<200 μA at VWM) and robust surge handling up to 100 A IFSM (8.3 ms half-sine).
Thermal design relies on RθJA = 100 °C/W (typ.) and RθJL = 20 °C/W (typ.), requiring minimum 5.0 mm × 5.0 mm copper pads per terminal per Vishay's mounting recommendation. It meets MSL Level 1 (260 °C peak reflow) and supports automated SMT placement without derating concerns below 125 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 7.79 V / 8.61 V at 10 mA - defines precise voltage threshold where clamping initiates under controlled test conditions |
| VWM | 7.02 V - maximum continuous reverse operating voltage before significant leakage begins |
| VC @ IPPM | 12.1 V at 49.6 A - clamped voltage seen by protected circuit during worst-case 10/1000 μs surge |
| PPPM | 600 W - peak transient power absorption capability with 0.01% duty cycle, enabling robust ESD/Lightning-level protection |
| IPPM | 49.6 A - maximum non-repetitive surge current supported under standard 10/1000 μs waveform |
| TJ max. | +150 °C - maximum junction temperature allowing reliable operation in under-hood automotive environments |
| AEC-Q101 | Qualified - certified for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per stress requirements |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile plastic case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Cathode identified by black band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; connected to system ground or lower-potential rail | Provides low forward voltage drop (~3.5 V at 50 A) during surge conduction to ground path |
| Cathode | Protected line connection; marked with band | Connected to line being protected (e.g., 5 V supply rail); reverse-biased during normal operation |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables single-device protection against IEC 61000-4-5 Level 3 surges (1 kV/42 Ω) on 5 V rails without cascading stages |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive powertrain and body electronics where long-term reliability under thermal cycling and humidity is mandatory |
| Halogen-free & RoHS-compliant | Meets EU ELV and China RoHS requirements for green manufacturing and end-of-life material recovery |
| Low clamping ratio (VC/VBR ≈ 1.56) | Minimizes overvoltage stress on downstream ICs such as microcontrollers or CAN transceivers during transients |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow profiles without pre-baking, reducing production complexity and cost |
Applications
| Automotive Body Control Module (BCM) | Industrial PLC Digital Input Card |
|---|---|
Use Scenario: Protecting 5 V sensor supply lines from load-dump and inductive switching transients in vehicle door modules. IC Role / Device Role / Timing Role: Unidirectional TVS placed between 5 V rail and chassis ground to clamp spikes up to ±100 V. Use Value: Prevents latch-up or permanent damage to Hall-effect sensors and LIN transceivers during battery disconnect events. |
Use Scenario: Safeguarding 24 V digital input optocoupler front-end against field-wiring induced surges in factory automation cabinets. IC Role / Device Role / Timing Role: Standoff-rated TVS absorbing repetitive 10/1000 μs transients on dry-contact inputs. Use Value: Eliminates need for external series resistors or RC snubbers while maintaining <100 ns response time. |
| Consumer Power Adapter Secondary Side | Telecom PoE-Powered Device Port |
Use Scenario: Clamping output overvoltage on 5 V/9 V USB-C adapter secondary-side rectifier outputs. IC Role / Device Role / Timing Role: Fast-response unidirectional suppressor placed across output capacitor to limit overshoot during dynamic load steps. Use Value: Maintains compliance with UL 62368-1 transient immunity requirements without increasing footprint. |
Use Scenario: Protecting Ethernet PHY interface pins from Ethernet cable ESD and surge coupling in IEEE 802.3af/at powered devices. IC Role / Device Role / Timing Role: Low-capacitance TVS integrated into RJ45 connector PCB layout adjacent to magnetics. Use Value: Achieves IEC 61000-4-2 Level 4 (±8 kV contact) without degrading 100BASE-TX signal integrity. |
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 VBR range (7.6–8.4 V), same SMB package, non-AEC-Q101, standard E3 suffix | Commercial-grade only; lacks automotive qualification and halogen-free certification | Select when AEC-Q101 and RoHS/halogen-free compliance are not required and cost sensitivity dominates |
| 1.5SMC8.2A | Same VBR/VWM/VC, higher PPPM = 1500 W, larger SMC (DO-214AB) package, no AEC-Q101 option | Requires larger PCB area; suited for higher-energy surge environments like AC mains inputs | Choose when system-level surge tests exceed 600 W and board space allows SMC footprint |
Compared with SMAJ8.0A and 1.5SMC8.2A, P6SMB8.2AHM3_A/I uniquely combines AEC-Q101 qualification, halogen-free construction, and SMB footprint - making it the preferred choice for space-constrained automotive and industrial designs requiring certified reliability.
Availability
P6SMB8.2AHM3_A/I is available at Aetrix Electronics and suitable for automotive body electronics, industrial PLC I/O protection, and consumer power adapter secondary-side clamping requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for P6SMB8.2AHM3_A/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 high-reliability and application-specific performance.
The P6SMB Series targets high-volume, cost-sensitive transient protection needs in automotive, industrial, and consumer markets - engineered for robustness, manufacturability, and compliance with stringent environmental and reliability standards.
FAQ
What is the clamping voltage of P6SMB8.2AHM3_A/I at its rated peak pulse current?
The P6SMB8.2AHM3_A/I has a maximum clamping voltage (VC) of 12.1 V at 49.6 A peak pulse current (IPPM) under the standard 10/1000 μs waveform. This value is measured per JEDEC test conditions and reflects the actual overvoltage stress imposed on protected circuitry during worst-case transient events - critical for ensuring downstream ICs remain within absolute maximum ratings.
Is P6SMB8.2AHM3_A/I suitable for automotive applications?
Yes, P6SMB8.2AHM3_A/I is AEC-Q101 qualified (denoted by HM3 suffix and "_B" revision code), fully tested for automotive-grade reliability including temperature cycling, high-temperature reverse bias, and ESD. It is explicitly intended for use in body electronics, infotainment power supplies, and sensor interfaces where qualification evidence is mandatory for Tier 1 acceptance.
What does the "HM3_A/I" suffix indicate in P6SMB8.2AHM3_A/I?
The "HM3" denotes halogen-free, RoHS-compliant, and AEC-Q101 qualified construction; "A" specifies the revision level per Vishay's internal documentation; "I" indicates packaging in 13-inch diameter tape-and-reel (3200 units per reel). This full suffix confirms compliance with automotive material and logistics requirements - distinct from commercial-grade E3 or M3 variants.
How does P6SMB8.2AHM3_A/I compare to bidirectional TVS diodes like P6SMB8.2CA?
P6SMB8.2AHM3_A/I is unidirectional and features a cathode band for polarity identification, whereas P6SMB8.2CA is bidirectional with no polarity marking. The unidirectional version provides lower leakage (<200 μA at VWM) and better forward conduction for ground-referenced clamping, while the bidirectional variant suits AC-coupled or floating signal lines - selection depends strictly on circuit topology and bias configuration.
What PCB pad layout is recommended for optimal thermal and surge performance of P6SMB8.2AHM3_A/I?
Vishay specifies minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal for P6SMB8.2AHM3_A/I to achieve rated 600 W pulse power and maintain RθJA ≤ 100 °C/W. Pad dimensions must follow the DO-214AA outline in the datasheet (Document Number 88370), with no solder mask defined over thermal pads to maximize heat dissipation during surge events.
P6SMB8.2AHM3_A/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:
- Obsolete
- 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_A/I FAQ
1.How can I place an order for P6SMB8.2AHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB8.2AHM3_A/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_A/I reliable?
The price and inventory of P6SMB8.2AHM3_A/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_A/I is usually 5 days.
3.What payment methods are accepted for P6SMB8.2AHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB8.2AHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB8.2AHM3_A/I?
P6SMB8.2AHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB8.2AHM3_A/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_A/I?
For technical support, including P6SMB8.2AHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB8.2AHM3_A/I requirements.
6.How does Aetrix verify that P6SMB8.2AHM3_A/I is sourced from the original manufacturer or authorized distributors?
All P6SMB8.2AHM3_A/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_A/I meets industry standards.
7.What is the process for return or replacement of P6SMB8.2AHM3_A/I?
All P6SMB8.2AHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB8.2AHM3_A/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_A/I part is unused and in its original packaging.
Return procedure for P6SMB8.2AHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB8.2AHM3_A/I Tags
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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