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Vishay General Semiconductor - Diodes Division P6SMB30AHM3_A/I
- Part No.:
- P6SMB30AHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB30AHM3_A/I.pdf
- Description:
- TVS DIODE 25.6VWM 41.4VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,047
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Product details
Overview
P6SMB30AHM3_A/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), 31.5 V maximum breakdown voltage (VBR), and 41.4 V clamping voltage (VC) at 14.5 A peak pulse current (IPPM), designed to protect MOSFETs, ICs, and sensor signal lines against inductive switching transients and ESD in industrial and automotive electronics.
For engineers reviewing the P6SMB30AHM3_A/I datasheet, P6SMB30AHM3_A/I pinout, P6SMB30AHM3_A/I application, or P6SMB30AHM3_A/I equivalent, key selection criteria include its 600 W peak pulse power rating (10/1000 μs), AEC-Q101 qualification (HM3 suffix), halogen-free RoHS compliance, and low thermal resistance (RθJL = 20 °C/W) enabling robust surge handling in space-constrained PCB layouts.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-band polarity marking, leveraging a glass-passivated silicon junction for fast response (<1 ns) and stable avalanche behavior under repetitive transient stress. Its 10/1000 μs waveform rating reflects standardized surge immunity testing per IEC 61000-4-5.
The P6SMB30AHM3_A/I is thermally optimized for surface-mount assembly on 5.0 mm × 5.0 mm copper pads, delivering 5.0 W steady-state power dissipation at TA = 50 °C and supporting junction temperatures up to +150 °C - critical for under-hood automotive modules and industrial motor drives where ambient thermal conditions exceed 85 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 25.6 V - Maximum continuous reverse voltage before significant leakage; defines safe operating margin below clamping threshold. |
| VBR (Breakdown Voltage) | 28.5–31.5 V at 1.0 mA - Guaranteed avalanche initiation range; ensures predictable turn-on during overvoltage events. |
| VC (Clamping Voltage) | 41.4 V at IPPM = 14.5 A - Peak voltage seen by protected circuit during 600 W transient; determines downstream component voltage stress. |
| PPPM (Peak Pulse Power) | 600 W (10/1000 μs) - Surge energy absorption capacity; validates protection against lightning-induced surges and inductive kickback. |
| ID (Reverse Leakage) | 1.0 μA at VWM - Ultra-low leakage preserves signal integrity and battery life in always-on sensor interfaces. |
| TJ max. | +150 °C - Enables deployment in high-temperature environments such as engine control units and power inverters. |
| Package | SMB (DO-214AA) - Industry-standard 2-pin SMD outline with 5.59 mm × 4.06 mm footprint; compatible with automated pick-and-place and reflow. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, unidirectional configuration with cathode band marking on one end. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); terminals are matte tin-plated for J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during forward conduction; connected to protected circuit ground or low-side reference. | Provides return path for surge current during clamping; must be routed with low-inductance trace to minimize voltage overshoot. |
| Cathode | Current exit point during reverse-biased clamping; connected to line being protected (e.g., power rail or signal). | Acts as the active clamping node - voltage at this terminal is clamped to ≤41.4 V during transient, shielding downstream components. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive-grade reliability including temperature cycling, humidity bias, and mechanical shock - suitable for ADAS sensors and body control modules. |
| Halogen-free & RoHS-compliant | Meets global environmental regulations without compromising surge performance; eliminates brominated flame retardants in molding compound. |
| 600 W peak pulse power (10/1000 μs) | Withstands high-energy transients common in 12 V/24 V vehicle systems and industrial PLC I/O ports without degradation. |
| Low RθJL = 20 °C/W | Enables efficient heat transfer from junction to PCB pad, sustaining repeated surge events without thermal runaway. |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles; no moisture sensitivity handling required prior to assembly. |
Applications
| Automotive Sensor Protection | Industrial Motor Drive I/O |
|---|---|
Use Scenario: Protecting LIN bus transceivers and Hall-effect position sensors in engine compartments exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS clamping transient spikes on 12 V supply rails and analog signal lines before they reach sensitive ASICs. Use Value: Prevents latch-up and gate oxide damage in sensor front-ends by limiting voltage to ≤41.4 V during 600 W surges - validated per ISO 7637-2 Pulse 5a. |
Use Scenario: Safeguarding digital input/output channels of programmable logic controllers interfacing with solenoids and contactors. IC Role / Device Role / Timing Role: Fast-acting shunt device absorbing inductive kickback energy when 24 V DC coils de-energize. Use Value: Eliminates need for external snubbers by clamping transients within 1 ns, reducing BOM count and board area while maintaining IEC 61000-4-4 level 4 immunity. |
| Consumer Power Adapter Input | Telecom Line Interface |
Use Scenario: Secondary-side overvoltage suppression in USB-C PD adapters after primary-side regulation. IC Role / Device Role / Timing Role: Standoff-rated protector on 5–20 V output rails, triggered only during fault conditions like feedback loop failure. Use Value: Maintains <1 μA leakage at 25.6 V, avoiding standby power loss while delivering 41.4 V clamping to preserve USB-PD controller and port protection ICs. |
Use Scenario: Primary-level surge protection on Ethernet PHY power and data lines in PoE-powered switches and base stations. IC Role / Device Role / Timing Role: First-line defense against lightning-induced surges entering via RJ45 connectors, coordinated with GDT and MOV stages. Use Value: Low capacitance (<100 pF at 0 V) prevents signal integrity degradation on 100BASE-TX lines while providing 600 W energy absorption per line pair. |
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/VBR/VC specs; SMA package (smaller footprint, higher RθJA = 140 °C/W); non-AEC-Q101; RoHS-compliant but not halogen-free. | Limited to commercial-temperature industrial use; unsuitable for under-hood automotive due to lower thermal robustness and qualification gap. | Select when board space is constrained and automotive qualification is unnecessary; verify thermal derating at >85 °C ambient. |
| 1.5SMC30AHE3_A | Same electrical specs; larger SMC (DO-214AB) package; AEC-Q101 qualified; halogen-free; 1.5 kW peak power rating (10/1000 μs). | Higher surge margin for mission-critical systems (e.g., EPS, braking); requires larger PCB area and different pad layout. | Choose for applications demanding >600 W headroom or legacy SMC-compatible designs; accept 30% larger footprint. |
Compared with P6SMB30AHM3_A/I, SMAJ30A-E3/5B offers smaller size but sacrifices automotive qualification and thermal performance, while 1.5SMC30AHE3_A provides higher surge capacity and same qualification at the cost of increased board area - making P6SMB30AHM3_A/I the optimal balance of AEC-Q101 compliance, SMB footprint, and 600 W protection for space- and reliability-constrained designs.
Availability
P6SMB30AHM3_A/I is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O protection, and telecom line interface circuits requiring stable component supply, long-term lifecycle support, and AEC-Q101 assurance.
Supply support for P6SMB30AHM3_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 protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The P6SMB Series is engineered for high-reliability transient suppression in automotive, industrial, and consumer power systems - delivering consistent clamping performance, AEC-Q101 validation, and surface-mount scalability across 6.8 V to 540 V ratings.
FAQ
What is the clamping voltage of the P6SMB30AHM3_A/I at its rated peak pulse current?
The P6SMB30AHM3_A/I has a maximum clamping voltage (VC) of 41.4 V at 14.5 A peak pulse current (IPPM), measured under the standard 10/1000 μs waveform. This value defines the upper voltage limit imposed on protected circuitry during transient events and is confirmed in the Vishay datasheet revision 09-Jan-2024, page 2. The P6SMB30AHM3_A/I maintains this clamping performance across its full operating temperature range of -65 °C to +150 °C.
Is the P6SMB30AHM3_A/I qualified for automotive applications?
Yes, the P6SMB30AHM3_A/I is AEC-Q101 qualified, as indicated by the "HM3" suffix and documented in the Vishay P6SMB Series datasheet (document 88370). It meets stress test requirements for automotive-grade reliability including temperature cycling, highly accelerated stress testing (HAST), and mechanical shock - making it suitable for use in engine control units, ADAS sensors, and body electronics where extended temperature operation and long-term stability are mandatory.
What does the "_A/I" suffix mean in P6SMB30AHM3_A/I?
The "_A/I" suffix in P6SMB30AHM3_A/I specifies packaging and reel configuration: "A" denotes the standard SMB (DO-214AA) package variant, and "I" indicates 3200-unit quantity on 13-inch diameter plastic tape and reel - per Vishay's ordering information table on page 3 of document 88370. This format supports high-volume automated assembly and is distinct from the "H" (750-unit, 7-inch reel) option.
How does the thermal performance of P6SMB30AHM3_A/I compare to similar SMB-packaged TVS diodes?
The P6SMB30AHM3_A/I features a typical junction-to-lead thermal resistance (RθJL) of 20 °C/W, significantly lower than industry-standard SMB TVS devices (often >30 °C/W). This enables more efficient heat transfer to the PCB copper pads, allowing sustained operation at higher ambient temperatures and improved reliability during repetitive surge events - a key advantage verified in Vishay's thermal characterization curves (Fig. 5, document 88370).
Can the P6SMB30AHM3_A/I replace older P6SMB30A variants in existing designs?
Yes, the P6SMB30AHM3_A/I is a direct replacement for legacy P6SMB30A parts in terms of electrical specifications, pinout, and package dimensions. It adds AEC-Q101 qualification, halogen-free construction, and enhanced thermal performance - all while maintaining identical VWM (25.6 V), VBR (28.5–31.5 V), and VC (41.4 V) values. No PCB layout changes are required, and the device is backward-compatible with existing reflow profiles per J-STD-020 MSL Level 1.
P6SMB30AHM3_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):
- 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_A/I FAQ
1.How can I place an order for P6SMB30AHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB30AHM3_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 P6SMB30AHM3_A/I reliable?
The price and inventory of P6SMB30AHM3_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 P6SMB30AHM3_A/I is usually 5 days.
3.What payment methods are accepted for P6SMB30AHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB30AHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB30AHM3_A/I?
P6SMB30AHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB30AHM3_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 P6SMB30AHM3_A/I?
For technical support, including P6SMB30AHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB30AHM3_A/I requirements.
6.How does Aetrix verify that P6SMB30AHM3_A/I is sourced from the original manufacturer or authorized distributors?
All P6SMB30AHM3_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 P6SMB30AHM3_A/I meets industry standards.
7.What is the process for return or replacement of P6SMB30AHM3_A/I?
All P6SMB30AHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB30AHM3_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 P6SMB30AHM3_A/I part is unused and in its original packaging.
Return procedure for P6SMB30AHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB30AHM3_A/I Tags
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ESD9B5.0ST5G
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DESD3V3E1BL-7B
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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