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Vishay General Semiconductor - Diodes Division P6SMB8.2CAHM3_A/I
- Part No.:
- P6SMB8.2CAHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB8.2CAHM3_A/I.pdf
- Description:
- TVS DIODE 7.02VWM 12.1VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,670
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Product details
Overview
P6SMB8.2CAHM3_A/I from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on signal and power lines. It features a 6.8 V minimum breakdown voltage (VBR), 7.02 V maximum stand-off voltage (VWM), 12.1 V maximum 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 electronics.
For engineers reviewing the P6SMB8.2CAHM3_A/I datasheet, P6SMB8.2CAHM3_A/I pinout, P6SMB8.2CAHM3_A/I application, or P6SMB8.2CAHM3_A/I equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification (HM3 suffix), halogen-free RoHS compliance, low incremental surge resistance, and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This device operates as a voltage-clamped transient protector with symmetrical reverse/forward conduction behavior due to its bidirectional construction. It responds within <1 ns to ESD and lightning-induced surges, maintaining clamping performance across -65 °C to +150 °C junction temperature range while meeting J-STD-020 MSL Level 1 reflow requirements (260 °C peak).
The P6SMB8.2CAHM3_A/I uses a glass-passivated silicon junction and exhibits a temperature coefficient of VBR at +0.065 %/°C. Its thermal resistance is 100 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead), enabling reliable operation under repetitive 0.01% duty cycle pulses without derating below 25 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 7.79 V / 8.61 V at 10 mA test current - defines precise voltage threshold where avalanche conduction begins in both directions |
| VWM | 7.02 V maximum - ensures no conduction during normal circuit operation up to this reverse/forward voltage |
| VC @ IPPM | 12.1 V at 49.6 A - limits transient voltage seen by downstream components during 600 W surge events |
| PPPM | 600 W with 10/1000 μs waveform - supports robust protection against IEC 61000-4-5 Level 4 surges |
| IPPM | 49.6 A peak pulse current - determines minimum trace width and PCB copper pad sizing (0.2" × 0.2") required for thermal management |
| TJ max. | +150 °C - enables use in under-hood automotive environments and high-temperature industrial enclosures |
| AEC-Q101 | Qualified - validates reliability for automotive applications including engine control units and ADAS sensor interfaces |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, halogen-free, RoHS-compliant, matte tin-plated terminals solderable per J-STD-002 and JESD 22-B102. Bidirectional construction means no polarity marking; both terminals are electrically symmetric.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Either terminal serves as input/output for bidirectional clamping - no cathode band marking; layout requires equal trace impedance to both ends |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or differential signal lines (e.g., CAN, RS-485) without polarity concerns |
| 600 W peak pulse power | Withstands IEC 61000-4-5 combination wave surges (40 Ω/12 Ω source) up to Level 4 (4 kV line-earth, 2 kV line-line) |
| AEC-Q101 qualified (HM3) | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock per AEC standard |
| Low clamping ratio (VC/VBR ≈ 1.55) | Minimizes overvoltage stress on protected ICs compared to higher-ratio TVS devices, preserving system-level immunity margins |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow profile usage without baking - reduces manufacturing overhead in SMT lines |
Applications
| Automotive Sensor Interfaces | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting analog voltage outputs and digital communication lines (e.g., LIN, SENT) from load dump and inductive switching transients in engine bay sensors. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed directly at connector entry point before signal conditioning amplifier or microcontroller input. Use Value: Limits transient voltage to ≤12.1 V during 49.6 A surges, preventing latch-up or gate oxide damage in 5 V/3.3 V interface ICs. |
Use Scenario: Safeguarding 24 V DC digital input modules in programmable logic controllers exposed to relay coil flyback and field wiring ESD. IC Role / Device Role / Timing Role: Primary transient suppressor mounted on PCB edge near terminal block, shunting surge energy before optocoupler or Schmitt trigger input stage. Use Value: Clamps 600 W surges within nanoseconds while maintaining ≤7.02 V stand-off to avoid false triggering during nominal 24 V operation. |
| Consumer Power Adapter Outputs | Telecom Line Card Surge Protection |
Use Scenario: Secondary-side overvoltage suppression on 5 V/9 V USB-C PD adapter outputs subject to capacitor discharge and hot-plug transients. IC Role / Device Role / Timing Role: Final-stage TVS placed between DC-DC output filter and USB port connector to absorb residual spikes escaping regulation loop. Use Value: 12.1 V clamping ensures connected devices receive no more than 12.1 V during 10/1000 μs surges, complying with USB PD v2.0 voltage tolerance limits. |
Use Scenario: Front-end protection of Ethernet PHY or DSL line drivers against lightning-induced surges entering via RJ-45 jacks in network equipment. IC Role / Device Role / Timing Role: First-line bidirectional suppressor on differential pair traces, coordinated with common-mode chokes and gas discharge tubes. Use Value: Symmetrical clamping preserves signal integrity on balanced lines while limiting differential surge voltage to safe levels for 100BASE-TX or G.fast transceivers. |
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 | Unidirectional; 8.0 V VWM, 12.0 V VC @ 49.2 A; same SMB package but lacks AEC-Q101 qualification | Requires external polarity management; not approved for automotive under-hood use | Select when cost-sensitive commercial designs need identical clamping performance without automotive certification |
| SMCJ8.0CA | Bidirectional; 8.0 V VWM, 12.9 V VC @ 46.5 A; larger SMC (DO-214AB) package with 1500 W PPPM | Higher surge handling but requires 30% more PCB area; thermal resistance 35 °C/W vs. 100 °C/W | Choose for industrial systems requiring >600 W surge margin or extended lifetime under repetitive surge stress |
Compared with SMAJ8.0A and SMCJ8.0CA, the P6SMB8.2CAHM3_A/I uniquely delivers AEC-Q101 qualification in the compact SMB footprint with optimized clamping ratio and MSL Level 1 process compatibility - making it the preferred choice for space-constrained automotive and high-reliability industrial designs.
Availability
P6SMB8.2CAHM3_A/I is available at Aetrix Electronics and suitable for automotive sensor protection, industrial PLC I/O hardening, and telecom line card surge suppression requiring stable component supply, halogen-free compliance, and AEC-Q101 validation.
Supply support for P6SMB8.2CAHM3_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, rectifiers, and transient protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The P6SMB Series targets high-energy transient suppression in automotive, industrial, and consumer electronics, engineered for robustness under repetitive surge stress and seamless integration into automated SMT assembly lines.
FAQ
What does the "CA" suffix indicate in P6SMB8.2CAHM3_A/I?
The "CA" suffix in P6SMB8.2CAHM3_A/I denotes a bidirectional configuration - meaning the device provides symmetrical transient voltage clamping in both forward and reverse directions. This eliminates polarity concerns during PCB layout and makes P6SMB8.2CAHM3_A/I ideal for protecting AC-coupled signals, differential buses like CAN or RS-485, and ungrounded power rails where voltage reversals may occur.
Is P6SMB8.2CAHM3_A/I suitable for automotive applications?
Yes, P6SMB8.2CAHM3_A/I is AEC-Q101 qualified (indicated by the "HM3" suffix), confirming its reliability for automotive use cases including engine control units, body electronics, and ADAS sensor interfaces. It meets stringent requirements for temperature cycling, humidity bias, and mechanical shock - and its halogen-free, RoHS-compliant construction satisfies automotive material compliance standards.
How does the clamping voltage of P6SMB8.2CAHM3_A/I compare to its breakdown voltage?
P6SMB8.2CAHM3_A/I has a breakdown voltage (VBR) range of 7.79 V to 8.61 V at 10 mA, while its maximum clamping voltage (VC) is 12.1 V at 49.6 A peak pulse current. This results in a clamping ratio of approximately 1.55, indicating efficient voltage limiting with minimal overvoltage stress on protected circuitry - a critical factor for safeguarding modern low-voltage ICs.
What PCB layout guidance applies to P6SMB8.2CAHM3_A/I?
For optimal thermal and electrical performance, P6SMB8.2CAHM3_A/I must be mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, as specified in the Vishay datasheet. Short, wide traces minimize inductance, and symmetric routing preserves bidirectional behavior. Avoid thermal relief on pads to maintain 100 °C/W junction-to-ambient thermal resistance and prevent premature failure during repetitive surges.
Does P6SMB8.2CAHM3_A/I require derating above 25 °C ambient temperature?
Yes, P6SMB8.2CAHM3_A/I requires derating of peak pulse power above 25 °C ambient, following the curve in Figure 2 of the Vishay datasheet (Document Number: 88370). At 85 °C ambient, its 600 W PPPM rating drops to approximately 420 W - a 30% reduction - due to increased junction temperature. Designers must verify surge energy profiles against derated ratings for continuous operation in high-temperature enclosures.
P6SMB8.2CAHM3_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:
- -
- Bidirectional Channels:
- 1
- 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)
P6SMB8.2CAHM3_A/I FAQ
1.How can I place an order for P6SMB8.2CAHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB8.2CAHM3_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 P6SMB8.2CAHM3_A/I reliable?
The price and inventory of P6SMB8.2CAHM3_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 P6SMB8.2CAHM3_A/I is usually 5 days.
3.What payment methods are accepted for P6SMB8.2CAHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB8.2CAHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB8.2CAHM3_A/I?
P6SMB8.2CAHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB8.2CAHM3_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 P6SMB8.2CAHM3_A/I?
For technical support, including P6SMB8.2CAHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB8.2CAHM3_A/I requirements.
6.How does Aetrix verify that P6SMB8.2CAHM3_A/I is sourced from the original manufacturer or authorized distributors?
All P6SMB8.2CAHM3_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 P6SMB8.2CAHM3_A/I meets industry standards.
7.What is the process for return or replacement of P6SMB8.2CAHM3_A/I?
All P6SMB8.2CAHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB8.2CAHM3_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 P6SMB8.2CAHM3_A/I part is unused and in its original packaging.
Return procedure for P6SMB8.2CAHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB8.2CAHM3_A/I Tags
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DESD3V3E1BL-7B
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Diodes Incorporated
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Diodes Incorporated
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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