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Vishay General Semiconductor - Diodes Division P6SMB8.2CAHM3_A/H
- Part No.:
- P6SMB8.2CAHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB8.2CAHM3_A/H.pdf
- Description:
- TVS DIODE 7.02VWM 12.1VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,797
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Product details
Overview
P6SMB8.2CAHM3_A/H 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 8.2 V standoff voltage (VWM), 12.1 V maximum clamping voltage at 49.6 A peak pulse current, and 600 W peak pulse power capability with 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial control systems.
For engineers reviewing the P6SMB8.2CAHM3_A/H datasheet, P6SMB8.2CAHM3_A/H pinout, P6SMB8.2CAHM3_A/H application, or P6SMB8.2CAHM3_A/H equivalent, key selection criteria include bidirectional clamping behavior, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), and compatibility with automated SMT assembly on 0.2" × 0.2" copper pads.
Technical Context
This device operates as a voltage-clamped transient protector with symmetrical breakdown in both polarities due to its bidirectional construction. Its glass-passivated junction enables fast response time (<1 ns), low incremental surge resistance, and stable clamping under repetitive 10/1000 μs surges at 0.01% duty cycle.
Designed for surface-mount implementation, it meets J-STD-020 MSL Level 1 (peak reflow 260 °C), uses matte tin-plated leads, and supports halogen-free, RoHS-compliant production per Vishay HM3 suffix. The SMB package provides mechanical robustness while enabling high-density PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 7.02 V - maximum continuous reverse voltage before clamping begins; defines operating margin below breakdown |
| VBR (Breakdown) | 7.79–8.61 V at 10 mA - guaranteed conduction onset range; ensures predictable turn-on during transients |
| VC (Clamping) | 12.1 V at 49.6 A IPPM - peak voltage seen by protected circuit during worst-case 600 W surge |
| PPPM | 600 W - peak pulse power handling with 10/1000 μs waveform; validates protection against IEC 61000-4-5 surges |
| RθJA | 100 °C/W - thermal resistance junction-to-ambient; determines derating above 25 °C ambient for sustained operation |
| TJ max. | +150 °C - maximum junction temperature; supports operation in under-hood automotive and industrial environments |
| AEC-Q101 | Qualified - certified for automotive electronics reliability including temperature cycling, HTRB, and ESD testing |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional - no polarity marking; symmetrical terminal configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Transient conduction path | Both terminals serve identical roles; clamps voltage regardless of polarity - eliminates orientation concerns during placement |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity constraints |
| 600 W peak pulse power | Withstands IEC 61000-4-5 Level 4 surge events (4 kV line-earth, 2 kV line-line) when mounted per recommended pad layout |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive applications including engine control units, body electronics, and ADAS sensor interfaces |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking - reduces manufacturing overhead |
| Halogen-free & RoHS-compliant | Meets EU Directive 2011/65/EU and IPC-1752A material declaration requirements for green electronics |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and inductive switching spikes in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional TVS clamping element placed directly at connector interface or IC input pins. Use Value: Limits transient voltage to ≤12.1 V during 49.6 A surge, preventing latch-up or gate oxide damage in downstream 3.3 V/5 V logic and analog front-ends. |
Use Scenario: Safeguarding digital input/output channels of programmable logic controllers against field-wiring induced surges in factory automation. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 24 V DC I/O lines, positioned between terminal block and optocoupler/isolator input stage. Use Value: Maintains system uptime by absorbing 600 W transients without degradation, meeting IEC 61000-4-4 (EFT) and IEC 61000-4-5 immunity requirements. |
| Consumer Power Adapter Input | Telecom Line Interface Protection |
Use Scenario: Secondary-side transient suppression on DC output rails of wall adapters and USB PD chargers exposed to hot-plug and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance TVS across +VOUT and GND to suppress sub-microsecond ESD and ringing. Use Value: Clamps 8 kV contact ESD (IEC 61000-4-2) to <12.1 V within <1 ns, preserving regulation integrity of synchronous buck controllers and LDOs. |
Use Scenario: Protecting Ethernet PHY and DSL line drivers from lightning-induced surges entering via RJ-45 or telephone jacks. IC Role / Device Role / Timing Role: First-stage protection device on differential pairs, paired with common-mode chokes and gas discharge tubes. Use Value: Provides precise 7.02 V standoff to avoid false triggering during normal 5 V bias, while clamping >1 kV transients to safe levels for silicon front-end. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ8.0CA | 8.0 V VWM, 12.0 V VC at 49.2 A, same SMB package but non-AEC-Q101 rated | Limited to commercial-grade industrial and consumer use; not validated for automotive temperature cycling or HTRB | Select when AEC-Q101 qualification is unnecessary and cost sensitivity outweighs automotive compliance needs |
| 1.5SMC8.2CA | Same 8.2 V VWM and bidirectional function, but larger SMC (DO-214AB) package with higher RθJA (75 °C/W) | Requires more PCB area; better suited for higher average power dissipation where thermal mass matters | Choose when board space allows larger footprint and thermal design prioritizes junction-to-lead conduction over ambient convection |
Compared with SMAJ8.0CA and 1.5SMC8.2CA, P6SMB8.2CAHM3_A/H uniquely combines AEC-Q101 qualification, SMB footprint efficiency, and halogen-free compliance - making it optimal for space-constrained automotive modules requiring zero rework risk in reflow and long-term field reliability.
Availability
P6SMB8.2CAHM3_A/H is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O protection, and telecom line interface designs requiring stable component supply, full traceability, and lifecycle continuity.
Supply support for P6SMB8.2CAHM3_A/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, rectifiers, TVS devices, and optoelectronics with emphasis on reliability and application-specific performance.
The P6SMB Series targets high-reliability transient suppression in automotive, industrial, and communications equipment - engineered for robust clamping, automated assembly, and compliance with stringent environmental standards.
FAQ
What does the "CA" suffix indicate in P6SMB8.2CAHM3_A/H?
The "CA" suffix denotes a bidirectional configuration - meaning P6SMB8.2CAHM3_A/H clamps voltage transients equally in both polarities, unlike unidirectional "A" variants. This makes P6SMB8.2CAHM3_A/H ideal for protecting AC-coupled lines, differential signals, or floating nodes where polarity reversal may occur during surge events.
Is P6SMB8.2CAHM3_A/H suitable for automotive applications?
Yes - P6SMB8.2CAHM3_A/H carries the HM3 suffix, confirming halogen-free, RoHS-compliant, and AEC-Q101 qualified construction. It has passed stress tests including temperature cycling, high-temperature reverse bias (HTRB), and ESD per JESD22-A114, validating its use in engine control, body electronics, and ADAS subsystems.
What is the maximum clamping voltage of P6SMB8.2CAHM3_A/H under surge conditions?
The maximum clamping voltage (VC) of P6SMB8.2CAHM3_A/H is 12.1 V at 49.6 A peak pulse current (IPPM), measured with a 10/1000 μs waveform. This value defines the upper voltage limit imposed on protected circuitry during worst-case transient events, ensuring compatibility with 3.3 V, 5 V, and 12 V logic families.
How does the SMB (DO-214AA) package of P6SMB8.2CAHM3_A/H compare to SMA or SMC packages?
P6SMB8.2CAHM3_A/H uses the SMB (DO-214AA) package - smaller than SMC (DO-214AB) and slightly larger than SMA (DO-214AC). Its 0.220" × 0.130" footprint balances PCB density and thermal performance, offering lower RθJA (100 °C/W) than SMA while maintaining compatibility with standard pick-and-place equipment and reflow profiles.
Does P6SMB8.2CAHM3_A/H require orientation during PCB placement?
No - P6SMB8.2CAHM3_A/H is a bidirectional TVS diode with symmetrical terminals and no polarity marking. Unlike unidirectional variants that feature a cathode band, P6SMB8.2CAHM3_A/H functions identically regardless of mounting orientation, simplifying automated assembly and reducing placement error risk.
P6SMB8.2CAHM3_A/H 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/H FAQ
1.How can I place an order for P6SMB8.2CAHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB8.2CAHM3_A/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 P6SMB8.2CAHM3_A/H reliable?
The price and inventory of P6SMB8.2CAHM3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB8.2CAHM3_A/H is usually 5 days.
3.What payment methods are accepted for P6SMB8.2CAHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB8.2CAHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB8.2CAHM3_A/H?
P6SMB8.2CAHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB8.2CAHM3_A/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 P6SMB8.2CAHM3_A/H?
For technical support, including P6SMB8.2CAHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB8.2CAHM3_A/H requirements.
6.How does Aetrix verify that P6SMB8.2CAHM3_A/H is sourced from the original manufacturer or authorized distributors?
All P6SMB8.2CAHM3_A/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 P6SMB8.2CAHM3_A/H meets industry standards.
7.What is the process for return or replacement of P6SMB8.2CAHM3_A/H?
All P6SMB8.2CAHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB8.2CAHM3_A/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 P6SMB8.2CAHM3_A/H part is unused and in its original packaging.
Return procedure for P6SMB8.2CAHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB8.2CAHM3_A/H Tags
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