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Vishay General Semiconductor - Diodes Division P6SMB30AHM3_A/H
- Part No.:
- P6SMB30AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB30AHM3_A/H.pdf
- Description:
- TVS DIODE 25.6VWM 41.4VC DO214AA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
P6SMB30AHM3_A/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on power and signal lines. It features 30 V standoff voltage (VWM), 31.5 V maximum breakdown voltage (VBR), 41.4 V clamping voltage at 14.5 A peak pulse current, and 600 W peak pulse power capability with 10/1000 μs waveform - deployed in automotive sensor protection and industrial I/O interface circuits.
For engineers reviewing the P6SMB30AHM3_A/H datasheet, P6SMB30AHM3_A/H pinout, P6SMB30AHM3_A/H application, or P6SMB30AHM3_A/H equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification status, clamping performance under repetitive surge conditions, and compatibility with automated SMT assembly on 0.2" × 0.2" copper pads.
Technical Context
This TVS diode operates as a shunt-clamping device that remains high-impedance below 30 V reverse standoff voltage and rapidly transitions to low-impedance conduction above its 31.5 V breakdown threshold. Its glass-passivated junction ensures stable leakage (<1.0 μA at VWM) and repeatable clamping behavior across temperature.
The device delivers 41.4 V clamping voltage at 14.5 A peak pulse current (10/1000 μs), with thermal resistance of 100 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead). It meets J-STD-020 MSL Level 1 and is halogen-free, RoHS-compliant, and AEC-Q101 qualified per ordering suffix HM3.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 30 V - Maximum continuous reverse operating voltage before significant leakage begins; defines safe operating margin for protected line. |
| VBR (Breakdown) | 28.5–31.5 V at 1.0 mA - Confirmed avalanche initiation range; ensures predictable turn-on during transient events. |
| VC (Clamping) | 41.4 V at IPPM = 14.5 A (10/1000 μs) - Peak voltage seen by downstream circuitry during worst-case surge; critical for IC-level protection. |
| PPPM | 600 W - Peak pulse power handling capacity; supports robust immunity against IEC 61000-4-5 Level 4 surges when properly mounted. |
| Package | SMB (DO-214AA) - Standardized surface-mount outline with 0.220" × 0.130" footprint; compatible with JEDEC-standard reflow profiles and automated placement. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing; suitable for under-hood and ADAS sensor applications. |
| Leakage (ID) | ≤1.0 μA at 30 V - Ultra-low reverse leakage preserves signal integrity and minimizes standby power loss in battery-powered systems. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, unidirectional configuration with cathode band marking. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); matte tin-plated leads, solderable per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or low-potential reference; completes clamping path during overvoltage event. |
| Cathode | High-side connection point | Connected to protected line (e.g., 24 V supply rail or CAN_H); blocks reverse current until breakdown threshold is exceeded. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables single-device protection against severe transients like load dump (ISO 7637-2 Pulse 5a) without external series impedance. |
| Halogen-free, RoHS-compliant HM3 suffix | Meets automotive environmental compliance requirements (e.g., ELV, REACH) and supports lead-free reflow assembly. |
| MSL Level 1 moisture sensitivity | Allows indefinite floor life before reflow; eliminates baking requirement and simplifies manufacturing logistics. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ESD, inductive switching), improving protection margin for sensitive ICs. |
| 150 °C max junction temperature | Supports operation in high-temperature environments such as engine control units and industrial motor drives. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting analog sensor outputs (e.g., pressure, temperature) in engine control modules from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Shunt-clamping TVS placed between sensor signal line and chassis ground to limit transient voltage to <42 V. Use Value: Prevents latch-up or permanent damage to 3.3 V/5 V ADC inputs and op-amps while maintaining sub-μA leakage at 30 V nominal supply. |
Use Scenario: Safeguarding 24 V digital input channels in programmable logic controllers against field-wiring induced surges and contact bounce. IC Role / Device Role / Timing Role: Unidirectional TVS connected across input terminal and common rail to clamp negative-going transients and suppress positive spikes. Use Value: Enables reliable operation under IEC 61000-4-4 (EFT) and IEC 61000-4-5 (surge) immunity testing up to 2 kV line-to-ground. |
| Telecom Power Rail Protection | Consumer Appliance Motor Drive Protection |
Use Scenario: Guarding 48 V DC power feeds in remote radio head units against lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Primary clamping device on DC input stage, coordinated with upstream fuse and downstream π-filter. Use Value: Limits clamped voltage to 41.4 V, ensuring downstream DC/DC converters remain within absolute maximum ratings during 600 W transient events. |
Use Scenario: Suppressing inductive kickback from brushed DC motors in smart home appliances (e.g., vacuum cleaners, washing machines). IC Role / Device Role / Timing Role: Mounted across motor terminals to absorb energy from back-EMF during PWM commutation and switch-off. Use Value: Eliminates need for snubber RC networks; reduces BOM count and PCB area while maintaining 100 A non-repetitive surge capability (IFSM). |
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 but commercial-grade (not AEC-Q101 qualified); SMA package (smaller footprint, higher RθJA = 140 °C/W). | Lacks automotive qualification; unsuitable for under-hood use; better suited for cost-sensitive consumer electronics where space is constrained. | Select when AEC-Q101 is not required and board space is limited; verify thermal derating at elevated ambient temperatures. |
| 1.5SMC30AHE3_A | Same electrical specs and AEC-Q101 qualification, but in larger SMC (DO-214AB) package; higher thermal mass and lower RθJA (60 °C/W). | Better thermal performance for high-duty-cycle surge environments; requires larger PCB pad area and may not fit dense layouts. | Prefer for industrial motor drives or telecom power supplies where sustained surge repetition occurs and layout space permits. |
Compared with P6SMB30AHM3_A/H, SMAJ30A-E3/5B offers smaller size but no automotive qualification, while 1.5SMC30AHE3_A provides superior thermal handling in a larger footprint - making P6SMB30AHM3_A/H the optimal balance of AEC-Q101 compliance, SMB form factor, and 600 W surge capability.
Availability
P6SMB30AHM3_A/H is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom power distribution, and consumer appliance motor control requiring stable component supply and long-term lifecycle support.
Supply support for P6SMB30AHM3_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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The P6SMB Series targets high-energy transient suppression in automotive, industrial, and telecom systems, delivering standardized 600 W surge capability in compact SMB packages with AEC-Q101 and halogen-free variants.
FAQ
What is the clamping voltage of P6SMB30AHM3_A/H at its rated peak pulse current?
The P6SMB30AHM3_A/H has a maximum clamping voltage (VC) of 41.4 V at 14.5 A peak pulse current with a 10/1000 μs waveform. This value is measured under standardized test conditions per JEDEC standards and represents the highest voltage the protected circuit will experience during a full-rated surge event. The P6SMB30AHM3_A/H maintains this clamping performance across its qualified operating temperature range.
Is P6SMB30AHM3_A/H qualified for automotive applications?
Yes, P6SMB30AHM3_A/H is AEC-Q101 qualified, as confirmed by its HM3 suffix and documentation in Vishay's official datasheet (Document Number: 88370, Revision: 09-Jan-2024). This qualification covers stress tests including temperature cycling, high-temperature reverse bias, and ESD, making the P6SMB30AHM3_A/H suitable for automotive powertrain, body electronics, and ADAS sensor modules.
What does the "HM3" suffix indicate in P6SMB30AHM3_A/H?
The "HM3" suffix in P6SMB30AHM3_A/H denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. It distinguishes this variant from commercial-grade versions (e.g., E3/M3) and confirms compliance with automotive environmental and reliability standards. The "_A/H" further specifies packaging: 7" tape-and-reel, 750-unit quantity, with revision code A.
How does P6SMB30AHM3_A/H compare to bidirectional TVS diodes like P6SMB30CA?
P6SMB30AHM3_A/H is unidirectional and intended for DC line protection where polarity is fixed (e.g., +24 V supply rails), offering lower leakage and tighter VBR tolerance than bidirectional equivalents. In contrast, P6SMB30CA protects AC or polarity-agnostic signals but exhibits higher leakage and symmetric clamping in both directions. The P6SMB30AHM3_A/H is not interchangeable with P6SMB30CA without circuit redesign.
What PCB layout guidance applies to P6SMB30AHM3_A/H for optimal surge performance?
For optimal surge performance, mount P6SMB30AHM3_A/H using minimum recommended pad layout: 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, as specified in the Vishay datasheet. Avoid narrow traces between the P6SMB30AHM3_A/H and protected node; keep trace inductance low to prevent voltage overshoot. Thermal vias under pads improve heat dissipation during repetitive surges.
P6SMB30AHM3_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:
- 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/H FAQ
1.How can I place an order for P6SMB30AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB30AHM3_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 P6SMB30AHM3_A/H reliable?
The price and inventory of P6SMB30AHM3_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 P6SMB30AHM3_A/H is usually 5 days.
3.What payment methods are accepted for P6SMB30AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB30AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB30AHM3_A/H?
P6SMB30AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB30AHM3_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 P6SMB30AHM3_A/H?
For technical support, including P6SMB30AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB30AHM3_A/H requirements.
6.How does Aetrix verify that P6SMB30AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All P6SMB30AHM3_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 P6SMB30AHM3_A/H meets industry standards.
7.What is the process for return or replacement of P6SMB30AHM3_A/H?
All P6SMB30AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB30AHM3_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 P6SMB30AHM3_A/H part is unused and in its original packaging.
Return procedure for P6SMB30AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB30AHM3_A/H Tags
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