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Vishay General Semiconductor - Diodes Division P6SMB30CAHM3_B/I
- Part No.:
- P6SMB30CAHM3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB30CAHM3_B/I.pdf
- Description:
- 600W,30V 5%,BIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:6,578
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Product details
Overview
P6SMB30CAHM3_B/I from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, rated for 30 V standoff voltage (VWM), 41.4 V maximum clamping voltage (VC) at 14.5 A peak pulse current (IPPM), and 600 W peak pulse power (10/1000 μs waveform). It protects signal lines and power rails in automotive sensor units, industrial I/O modules, and telecom interface circuits against ESD and inductive switching transients.
For engineers reviewing the P6SMB30CAHM3_B/I datasheet, P6SMB30CAHM3_B/I pinout, P6SMB30CAHM3_B/I application, or P6SMB30CAHM3_B/I equivalent, this device serves as a halogen-free, AEC-Q101-qualified transient suppressor with MSL Level 1 moisture sensitivity, low incremental surge resistance, and fast response time - critical for robust overvoltage protection in space-constrained, high-reliability designs.
Technical Context
The P6SMB30CAHM3_B/I operates bidirectionally with symmetrical breakdown characteristics: minimum VBR = 33.3 V and maximum VBR = 37.1 V at 1.0 mA test current, ensuring consistent clamping in both polarities. Its thermal resistance is RθJA = 100 °C/W (typ.) and RθJL = 20 °C/W (typ.), supporting reliable operation up to TJ = +150 °C.
It complies with JESD201 Class 2 whisker resistance and meets UL 94 V-0 flammability requirements. The matte tin-plated leads are solderable per J-STD-002 and JESD22-B102, and the device is qualified to AEC-Q101 for automotive applications - confirmed by the "HM3_B/I" suffix denoting halogen-free, RoHS-compliant, and AEC-Q101-qualified construction in 13" tape-and-reel packaging.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 30 V - Maximum continuous reverse voltage before significant leakage; defines operating margin below clamping threshold. |
| VBR (Breakdown) | 33.3–37.1 V at 1.0 mA - Ensures predictable, repeatable avalanche initiation across temperature and unit variation. |
| VC (Clamping) | 41.4 V at 14.5 A (10/1000 μs) - Limits transient voltage seen by downstream ICs to safe levels during surge events. |
| PPPM | 600 W - Sustains high-energy transients without failure; enables protection of 12 V/24 V automotive and industrial buses. |
| IPPM | 14.5 A - Peak current capability under standardized 10/1000 μs waveform; directly determines protected circuit's surge immunity level. |
| TJ max. | +150 °C - Supports operation in under-hood automotive environments and thermally demanding industrial enclosures. |
| Package | SMB (DO-214AA) - Low-profile, surface-mount package compatible with automated assembly; 0.220" × 0.130" footprint. |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads; no polarity marking for bidirectional configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional terminal pair | Either terminal functions identically as anode or cathode depending on transient polarity; no band marking required. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - suitable for engine control, ADAS sensors, and infotainment interfaces. |
| Halogen-free & RoHS-compliant (HM3) | Meets global environmental compliance mandates without compromising surge performance or thermal stability. |
| 600 W peak pulse power (10/1000 μs) | Provides robust protection against ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 surges in industrial and vehicle subsystems. |
| Low clamping ratio (VC/VWM ≈ 1.38) | Minimizes voltage overshoot during transients - critical for safeguarding 3.3 V/5 V logic and analog front-ends. |
| MSL Level 1 (260 °C peak reflow) | Enables single-pass lead-free reflow assembly without preconditioning or baking - reduces manufacturing complexity. |
Applications
| Automotive Sensor Interface | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and ESD in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional TVS placed across differential signal pairs or supply-to-ground to clamp transients before they reach sensitive analog front-ends or communication ICs. Use Value: Maintains signal integrity during 12 V/24 V system transients while meeting AEC-Q101 stress requirements - eliminating field failures due to voltage overstress. |
Use Scenario: Shielding digital input/output channels in programmable logic controllers from inductive kickback and lightning-induced surges in factory automation systems. IC Role / Device Role / Timing Role: Standoff-rated TVS connected between field-side signal line and common ground to absorb repetitive 600 W pulses without degradation. Use Value: Extends mean time between failures (MTBF) of I/O modules by limiting transient energy delivered to optocouplers and level-shifting buffers. |
| Telecom Line Interface | Consumer Power Adapter Output |
Use Scenario: Safeguarding Ethernet PHYs, RS-485 transceivers, and PoE injectors against induced surges on data lines in building infrastructure equipment. IC Role / Device Role / Timing Role: Bidirectional clamping device placed across twisted-pair lines or supply rails to suppress common-mode and differential-mode transients. Use Value: Enables compliance with IEC 61000-4-5 Level 3 (1 kV/2 kV) without additional filtering - reducing BOM count and board area. |
Use Scenario: Secondary-side overvoltage suppression on 5 V/9 V/12 V USB-C and legacy AC/DC adapter outputs exposed to user-handling ESD and cable coupling. IC Role / Device Role / Timing Role: Final-stage TVS connected between output rail and ground to prevent latch-up or gate oxide damage in downstream USB PD controllers and charging ICs. Use Value: Achieves >15 kV contact ESD immunity (IEC 61000-4-2) with minimal capacitance impact - preserving signal rise/fall times in high-speed power delivery paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ30CA | Same VWM (30 V), lower PPPM (400 W), SMA package (larger footprint, higher RθJA = 140 °C/W) | Not AEC-Q101 qualified; limited to commercial-grade consumer/industrial use | Select when cost sensitivity outweighs automotive qualification and power handling needs. |
| 1.5KE30CA | Higher PPPM (1500 W), axial-leaded DO-201 package, slower response due to higher parasitic inductance | Requires through-hole assembly; unsuitable for high-density SMT layouts or automated production | Choose only for legacy designs requiring higher surge margin and where board real estate and assembly method permit axial components. |
Compared with SMAJ30CA and 1.5KE30CA, the P6SMB30CAHM3_B/I delivers AEC-Q101 reliability, optimized SMT manufacturability, and balanced 600 W surge capacity in the smallest standardized surface-mount TVS footprint - making it the preferred choice for new automotive and industrial designs requiring traceable, high-volume supply.
Availability
P6SMB30CAHM3_B/I is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom line protection requiring stable component supply, full AEC-Q101 traceability, and halogen-free compliance.
Supply support for P6SMB30CAHM3_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, rectifiers, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The P6SMB Series is engineered for high-energy transient suppression in automotive, industrial, and communications systems - delivering consistent clamping performance, AEC-Q101 qualification, and SMT-ready packaging for mission-critical overvoltage protection.
FAQ
What does the "HM3_B/I" suffix indicate for P6SMB30CAHM3_B/I?
The "HM3" denotes halogen-free, RoHS-compliant, and AEC-Q101-qualified construction; "B" specifies qualification to AEC-Q101 for the 6.8 V to 220 V voltage range; and "I" indicates 13-inch tape-and-reel packaging (3200 units per reel). This makes P6SMB30CAHM3_B/I suitable for automotive production with full environmental and reliability compliance documentation.
Is P6SMB30CAHM3_B/I unidirectional or bidirectional?
P6SMB30CAHM3_B/I is a bidirectional TVS diode, as confirmed by the "CA" suffix and absence of cathode band marking. Its symmetrical breakdown (33.3–37.1 V) and clamping behavior apply equally in both directions - ideal for protecting AC-coupled lines, differential buses like CAN, and floating power domains where polarity reversal may occur.
What is the maximum clamping voltage of P6SMB30CAHM3_B/I under surge conditions?
The maximum clamping voltage (VC) of P6SMB30CAHM3_B/I is 41.4 V at 14.5 A peak pulse current with a 10/1000 μs waveform. This value is guaranteed per Vishay's datasheet (Document Number: 88370, Rev. 09-Jan-2024) and defines the upper voltage limit imposed on protected circuitry during standardized surge events.
Can P6SMB30CAHM3_B/I replace P6SMB30A in existing designs?
No - P6SMB30CAHM3_B/I is bidirectional, while P6SMB30A is unidirectional. Substituting them requires verifying circuit polarity, grounding scheme, and transient directionality. The "CA" vs. "A" suffix distinction is fundamental: P6SMB30CAHM3_B/I clamps in both directions; P6SMB30A only clamps reverse-biased transients. Using P6SMB30CAHM3_B/I in place of P6SMB30A may compromise protection in unidirectional DC rails.
What is the thermal resistance of P6SMB30CAHM3_B/I, and how does it affect layout?
P6SMB30CAHM3_B/I has typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W and junction-to-lead (RθJL) of 20 °C/W. To maintain TJ ≤ 150 °C, PCB copper pad area must follow Vishay's recommended 0.2" × 0.2" (5.0 mm × 5.0 mm) per terminal - undersized pads will cause premature thermal derating and reduced surge endurance in P6SMB30CAHM3_B/I.
P6SMB30CAHM3_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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 25.6V
- Voltage - Breakdown (Min):
- 28.5V
- Voltage - Clamping (Max) @ Ipp:
- 41.4V
- Current - Peak Pulse (10/1000µs):
- 14.5A
- 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)
P6SMB30CAHM3_B/I FAQ
1.How can I place an order for P6SMB30CAHM3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB30CAHM3_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 P6SMB30CAHM3_B/I reliable?
The price and inventory of P6SMB30CAHM3_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 P6SMB30CAHM3_B/I is usually 5 days.
3.What payment methods are accepted for P6SMB30CAHM3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB30CAHM3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB30CAHM3_B/I?
P6SMB30CAHM3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB30CAHM3_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 P6SMB30CAHM3_B/I?
For technical support, including P6SMB30CAHM3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB30CAHM3_B/I requirements.
6.How does Aetrix verify that P6SMB30CAHM3_B/I is sourced from the original manufacturer or authorized distributors?
All P6SMB30CAHM3_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 P6SMB30CAHM3_B/I meets industry standards.
7.What is the process for return or replacement of P6SMB30CAHM3_B/I?
All P6SMB30CAHM3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB30CAHM3_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 P6SMB30CAHM3_B/I part is unused and in its original packaging.
Return procedure for P6SMB30CAHM3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB30CAHM3_B/I Tags
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