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Vishay General Semiconductor - Diodes Division P6SMB30AHM3_B/I
- Part No.:
- P6SMB30AHM3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB30AHM3_B/I.pdf
- Description:
- 600W,30V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:7,120
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Product details
Overview
P6SMB30AHM3_B/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, rated for 30 V standoff voltage (VWM), 41.4 V clamping voltage at 14.5 A peak pulse current, and 600 W peak pulse power with 10/1000 μs waveform. It protects MOSFETs, ICs, and sensor signal lines against inductive switching transients and ESD in automotive and industrial power electronics.
For engineers reviewing the P6SMB30AHM3_B/I datasheet, P6SMB30AHM3_B/I pinout, P6SMB30AHM3_B/I application, or P6SMB30AHM3_B/I equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification (HM3 suffix), 150 °C max junction temperature, low incremental surge resistance, and compatibility with automated SMT placement on standard PCB copper pads.
Technical Context
This TVS diode operates as a clamping device in reverse-biased configuration, triggering avalanche breakdown when transient voltage exceeds its 30 V stand-off level to limit downstream voltage to ≤41.4 V. Its glass-passivated junction ensures stable leakage (<1.0 μA at VWM) and fast response time (<1.0 ns).
The SMB package provides thermal resistance of 100 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead), enabling reliable operation under repetitive 0.01% duty cycle surges. The HM3 suffix confirms halogen-free, RoHS-compliant, and AEC-Q101 qualified construction for automotive-grade reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 30 V - Maximum continuous reverse operating voltage before clamping initiates |
| VBR (Breakdown) | 28.5–31.5 V at 1.0 mA - Confirmed avalanche onset range for precise overvoltage threshold control |
| VC (Clamping) | 41.4 V at IPPM = 14.5 A - Peak voltage seen by protected circuit during 10/1000 μs transient |
| PPPM | 600 W - Surge energy handling capacity per IEC 61000-4-5 Level 4 compliance |
| ID (Leakage) | ≤1.0 μA at 30 V - Minimal power loss and signal integrity impact in standby state |
| TJ max | +150 °C - Enables use in under-hood automotive environments and high-temperature industrial enclosures |
| Package | SMB (DO-214AA) - Standardized 2-pin SMT footprint compatible with JEDEC MS-012AC, 5.59 mm × 4.06 mm |
Pinout & Package
SMB (DO-214AA) package with matte tin-plated leads; cathode indicated by band marking on unidirectional devices. Mounting requires 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal per Vishay recommended layout.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference node | Connected to ground or low-impedance return path; defines clamping reference point |
| Cathode | Protected line input | Connected to signal/power line requiring transient suppression; carries full surge current during clamp event |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified (HM3) | Validated for automotive applications including engine control units and ADAS sensors without derating |
| 600 W peak pulse power (10/1000 μs) | Withstands IEC 61000-4-5 surge test waveforms up to Level 4 without degradation |
| Glass passivated junction | Ensures stable VBR tolerance (±5%) and low leakage across temperature (-65 °C to +150 °C) |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without preconditioning or baking |
| Halogen-free & RoHS-compliant | Meets automotive ELV directive and IPC-1752A material declaration requirements |
Applications
| Automotive Engine Control Unit (ECU) | Industrial PLC Digital Input Module |
|---|---|
Use Scenario: Protects microcontroller GPIO and CAN transceiver power rails from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between 12 V supply rail and ground, triggered within nanoseconds of overvoltage event. Use Value: Limits voltage to ≤41.4 V during 600 W surges, preventing latch-up or permanent damage to 3.3 V/5 V logic interfaces. |
Use Scenario: Shields 24 V digital input optocoupler circuits from inductive kickback generated by solenoid valve switching. IC Role / Device Role / Timing Role: Standoff-rated TVS connected across input terminals to absorb reverse EMF spikes before reaching isolation barrier. Use Value: Maintains <1.0 μA leakage at 24 V nominal, ensuring clean logic-level detection while clamping 14.5 A transients to safe levels. |
| Telecom Power Supply Front-End | Consumer Appliance Motor Driver Board |
Use Scenario: Guards AC-DC converter primary-side rectifier and controller ICs against lightning-induced surges on mains input. IC Role / Device Role / Timing Role: Primary-side unidirectional TVS mounted across bridge rectifier output to suppress differential-mode transients. Use Value: Delivers 600 W pulse handling with 100 °C/W thermal resistance, enabling compact layout without heatsink in space-constrained telecom modules. |
Use Scenario: Safeguards H-bridge gate drivers and current-sense amplifiers from back-EMF during BLDC motor commutation. IC Role / Device Role / Timing Role: Localized TVS on each half-bridge leg's bootstrap supply line to prevent false triggering and overvoltage stress. Use Value: Fast <1 ns response and low clamping ratio (VC/VWM = 1.38) preserve timing margins in high-frequency PWM motor control. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ30A-E3/5B | Same VWM (30 V), lower PPPM (400 W), non-AEC-Q101, commercial-grade M3 suffix | Limited to non-automotive industrial or consumer use; not qualified for automotive temperature cycling or humidity testing | Select when cost sensitivity outweighs automotive qualification requirements and surge energy stays below 400 W |
| 1.5SMC30AHE3_A/H | Higher package thermal resistance (RθJA = 125 °C/W), same VWM/VC, AEC-Q101 qualified but in larger SMC (DO-214AB) package | Requires larger PCB area and different pad layout; better suited for higher average power dissipation scenarios | Choose when board space allows SMC footprint and system-level thermal management demands lower junction rise per watt |
Compared with P6SMB30AHM3_B/I, SMAJ30A-E3/5B offers lower cost but lacks automotive qualification and surge margin, while 1.5SMC30AHE3_A/H provides identical electrical protection with greater thermal headroom at the expense of PCB real estate and assembly compatibility.
Availability
P6SMB30AHM3_B/I is available at Aetrix Electronics and suitable for automotive ECUs, industrial PLCs, telecom power supplies, and consumer appliance motor controllers requiring stable component supply with AEC-Q101 traceability and halogen-free compliance.
Supply support for P6SMB30AHM3_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, and protection devices with emphasis on reliability, precision, and automotive-grade qualification.
The P6SMB Series targets high-reliability transient suppression in space-constrained SMT designs, specifically engineered for automotive, industrial, and telecom applications demanding AEC-Q101 validation and robust 10/1000 μs surge immunity.
FAQ
What is the clamping voltage of the P6SMB30AHM3_B/I under maximum rated surge current?
The P6SMB30AHM3_B/I clamps to 41.4 V when subjected to its maximum peak pulse current of 14.5 A with a 10/1000 μs waveform. This value is measured per standard test conditions in the Vishay datasheet (Document Number: 88370, Rev. 09-Jan-2024) and defines the upper voltage limit imposed on protected circuitry during transient events. The clamping ratio (VC/VWM = 1.38) reflects efficient voltage limiting performance for the P6SMB30AHM3_B/I.
Is the P6SMB30AHM3_B/I suitable for automotive applications?
Yes, the P6SMB30AHM3_B/I is AEC-Q101 qualified, as confirmed by the "HM3" suffix and documentation in Vishay's P6SMB Series datasheet. It meets automotive reliability requirements including temperature cycling, humidity testing, and mechanical shock. The P6SMB30AHM3_B/I is explicitly designated for use in engine control units, ADAS sensors, and body electronics where transient immunity and long-term stability are critical.
What does the "_B/I" suffix indicate in P6SMB30AHM3_B/I?
The "_B" denotes AEC-Q101 qualification for the P6SMB30AHM3_B/I within the 6.8 V to 220 V voltage range, while "/I" specifies packaging in 13-inch diameter plastic tape and reel with 3200 units per reel. This ordering code ensures traceable, automotive-grade material with halogen-free and RoHS-compliant construction, as defined in Vishay's ordering information table (page 3, Document Number: 88370).
How does the thermal performance of the P6SMB30AHM3_B/I compare to larger package alternatives?
The P6SMB30AHM3_B/I has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" copper pads. This is lower than SMC-packaged equivalents like 1.5SMC30AHE3_A/H (RθJA = 125 °C/W), enabling more efficient heat dissipation in dense layouts. For the P6SMB30AHM3_B/I, this supports reliable operation at full 600 W surge rating without external heatsinking in most automotive and industrial PCB configurations.
Can the P6SMB30AHM3_B/I be used in bidirectional configurations?
No, the P6SMB30AHM3_B/I is a unidirectional TVS diode, as indicated by the "A" suffix (not "CA") and absence of bidirectional markings in its electrical characteristics table. Its cathode band identifies polarity, and it conducts only in reverse breakdown. For bidirectional protection at 30 V, Vishay offers P6SMB30CA variants - the P6SMB30AHM3_B/I must be used with correct orientation in DC-coupled circuits where polarity is fixed.
P6SMB30AHM3_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):
- 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)
P6SMB30AHM3_B/I FAQ
1.How can I place an order for P6SMB30AHM3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB30AHM3_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 P6SMB30AHM3_B/I reliable?
The price and inventory of P6SMB30AHM3_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 P6SMB30AHM3_B/I is usually 5 days.
3.What payment methods are accepted for P6SMB30AHM3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB30AHM3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB30AHM3_B/I?
P6SMB30AHM3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB30AHM3_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 P6SMB30AHM3_B/I?
For technical support, including P6SMB30AHM3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB30AHM3_B/I requirements.
6.How does Aetrix verify that P6SMB30AHM3_B/I is sourced from the original manufacturer or authorized distributors?
All P6SMB30AHM3_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 P6SMB30AHM3_B/I meets industry standards.
7.What is the process for return or replacement of P6SMB30AHM3_B/I?
All P6SMB30AHM3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB30AHM3_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 P6SMB30AHM3_B/I part is unused and in its original packaging.
Return procedure for P6SMB30AHM3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB30AHM3_B/I Tags
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