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Vishay General Semiconductor - Diodes Division P6SMB30AHM3_B/H
- Part No.:
- P6SMB30AHM3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB30AHM3_B/H.pdf
- Description:
- 600W,30V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:8,341
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Product details
Overview
P6SMB30AHM3_B/H 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). It delivers 600 W peak pulse power with 10/1000 µs waveform and is AEC-Q101 qualified for automotive electronics protection.
For engineers reviewing the P6SMB30AHM3_B/H datasheet, P6SMB30AHM3_B/H pinout, P6SMB30AHM3_B/H application, or P6SMB30AHM3_B/H equivalent, this device is selected for robust overvoltage protection of DC power rails and signal lines in harsh environments where fast response (<1 ns), low clamping ratio (1.38), and high surge reliability are required.
Technical Context
The P6SMB30AHM3_B/H operates as a unidirectional avalanche diode, conducting only in reverse bias above its breakdown threshold to shunt transient energy to ground. Its glass-passivated junction ensures stable VBR tolerance (±5%) and low leakage (<1 µA at 25.6 V).
Designed for automated SMT assembly, it features matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, MSL Level 1 rating (260 °C peak reflow), and halogen-free RoHS-compliant molding compound per Vishay HM3 specification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off) | 25.6 V - Maximum continuous reverse operating voltage before significant conduction begins |
| VBR (Breakdown) | 28.5–31.5 V at 1.0 mA - Confirmed avalanche onset range ensuring predictable triggering |
| VC (Clamping) | 41.4 V at 14.5 A - Limits downstream circuit voltage during 10/1000 µs transients to safe levels |
| PPPM | 600 W - Peak surge power handling capability under standardized lightning/surge test waveform |
| IPPM | 14.5 A - Maximum non-repetitive surge current supported without degradation |
| TJ max. | 150 °C - Maximum junction temperature enabling operation in under-hood automotive environments |
| RθJA | 100 °C/W - Thermal resistance defining power derating above 25 °C ambient |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, single-ended unidirectional configuration with cathode band marking. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); recommended pad layout: 5.0 mm × 5.0 mm copper per terminal.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current path / Ground reference | Connected to system ground or low-side return; defines conduction direction during clamping |
| Cathode | Transient voltage input / Protected line connection | Connected to line being protected (e.g., 24 V rail); reverse-biased during normal operation |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity testing, and mechanical shock |
| Halogen-free & RoHS-compliant (HM3) | Meets IEC 61249-2-21 and JEDEC J-STD-020 MSL Level 1 requirements for green manufacturing |
| 600 W peak pulse power | Withstands ISO 7637-2 Pulse 1/2a/3a and IEC 61000-4-5 Level 3 surges without failure |
| Fast response time (<1 ns) | Clamps transients before sensitive downstream ICs (e.g., CAN transceivers, microcontrollers) experience overstress |
| Low clamping ratio (VC/VBR = 1.38) | Minimizes voltage overshoot during clamping, reducing stress on protected components |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: 24 V battery-supplied ECUs exposed to load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and ground to clamp transients before DC/DC converters and MCU power supplies. Use Value: Clamps 41.4 V at 14.5 A, limiting rail excursion below 45 V and preventing brownout or latch-up in 3.3 V/5 V logic domains. |
Use Scenario: Analog sensor outputs (e.g., pressure, temperature) routed across noisy motor control zones in factory automation. IC Role / Device Role / Timing Role: TVS mounted at connector entry point to absorb ESD (IEC 61000-4-2 ±8 kV contact) and inductive kickback from nearby solenoids. Use Value: Sub-1 ns response ensures protection before op-amp input stages saturate; low leakage (<1 µA) avoids signal offset errors in µA-level sensor circuits. |
| Telecom DC Power Input Protection | Consumer Appliance Motor Drive Protection |
Use Scenario: 48 V PoE-powered network switches subjected to lightning-induced surges on Ethernet ports and auxiliary power inputs. IC Role / Device Role / Timing Role: Primary TVS on secondary-side 48 V input rail, upstream of hot-swap controllers and PMICs. Use Value: 600 W rating handles multiple repetitive surges per IEC 61000-4-5; VWM = 25.6 V allows margin above nominal 48 V/2 ratio while avoiding false triggering. |
Use Scenario: Brushed DC motor control boards in washing machines, where commutation spikes exceed 100 V on 24 V supply lines. IC Role / Device Role / Timing Role: TVS placed across motor terminals and/or power rail to suppress flyback energy during MOSFET turn-off. Use Value: 100 A IFSM rating supports high-current surge events; SMB footprint enables compact placement near motor driver ICs without thermal crowding. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ30A-E3/5B | Same VWM/VBR/VC, but commercial-grade (not AEC-Q101); SMA package (smaller, lower IPPM = 12.3 A) | Limited to non-automotive industrial or consumer use; less robust thermal performance (RθJA = 125 °C/W) | Select when cost sensitivity outweighs automotive qualification and surge margin requirements |
| 1.5SMC33A | Higher VWM (28.2 V), same VC (45.7 V), larger SMC package; 1500 W rating but higher VC/VBR ratio (1.62) | Better suited for higher-energy surges but increases protected circuit voltage stress during clamping | Choose for legacy designs requiring higher peak power with acceptable clamping overhead |
Compared with SMAJ30A-E3/5B and 1.5SMC33A, the P6SMB30AHM3_B/H uniquely balances AEC-Q101 compliance, SMB footprint constraints, and optimal clamping efficiency (VC/VBR = 1.38), making it preferred for space-constrained automotive modules needing validated reliability.
Availability
P6SMB30AHM3_B/H is available at Aetrix Electronics and suitable for automotive control units, industrial sensor interfaces, telecom power inputs, and consumer appliance motor drives requiring stable component supply across extended production lifecycles.
Supply support for P6SMB30AHM3_B/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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The P6SMB Series targets high-reliability transient suppression in automotive, industrial, and telecom systems, designed specifically to meet stringent AEC-Q101, IEC 61000-4-5, and ISO 7637-2 immunity standards.
FAQ
What is the maximum clamping voltage of the P6SMB30AHM3_B/H under standard test conditions?
The P6SMB30AHM3_B/H has a maximum clamping voltage (VC) of 41.4 V at 14.5 A peak pulse current (IPPM) using the 10/1000 µs waveform. This value is measured per JEDEC standards and reflects the actual voltage seen by protected circuitry during surge events. The P6SMB30AHM3_B/H maintains this clamping performance across its specified operating temperature range and is validated for repeatable behavior in automotive-grade applications.
Is the P6SMB30AHM3_B/H suitable for automotive applications?
Yes, the P6SMB30AHM3_B/H is AEC-Q101 qualified and designated with the HM3 suffix, indicating halogen-free, RoHS-compliant construction and full automotive reliability testing. It meets requirements for under-hood and body-control module deployments, including temperature cycling, mechanical shock, and humidity exposure. The P6SMB30AHM3_B/H is explicitly listed in Vishay's AEC-Q101 qualified product matrix for the P6SMB family.
What does the "_B/H" suffix in P6SMB30AHM3_B/H indicate?
The "_B" denotes AEC-Q101 qualification for the P6SMB30A variant (applicable to VWM ≤ 220 V), and "_H" specifies 7-inch plastic tape-and-reel packaging with 750 units per reel. The "HM3" prefix confirms halogen-free, RoHS-compliant materials and MSL Level 1 moisture sensitivity. Thus, P6SMB30AHM3_B/H fully identifies an automotive-grade, halogen-free, surface-mount TVS diode in standard SMT packaging.
How does the P6SMB30AHM3_B/H compare to bidirectional TVS diodes like P6SMB30CA?
The P6SMB30AHM3_B/H is unidirectional and intended for DC line protection with polarity-sensitive placement (cathode to protected line), whereas P6SMB30CA is bidirectional and used in AC or floating signal paths. The P6SMB30AHM3_B/H offers lower leakage (<1 µA at 25.6 V) and tighter VBR tolerance vs. bidirectional variants, but cannot protect symmetric waveforms. Selection depends strictly on circuit topology-not interchangeability.
What is the thermal resistance and power derating behavior of the P6SMB30AHM3_B/H?
The P6SMB30AHM3_B/H has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W on 5.0 mm × 5.0 mm copper pads. Its 5.0 W steady-state power dissipation (PD) derates linearly above 25 °C ambient, reaching zero at 150 °C junction temperature. Derating curves are provided in Figure 2 of the Vishay datasheet 88370, and the P6SMB30AHM3_B/H must be applied within these limits to ensure long-term reliability.
P6SMB30AHM3_B/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, TransZorb®
- Packaging:
- Bulk
- 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/H FAQ
1.How can I place an order for P6SMB30AHM3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB30AHM3_B/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_B/H reliable?
The price and inventory of P6SMB30AHM3_B/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_B/H is usually 5 days.
3.What payment methods are accepted for P6SMB30AHM3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB30AHM3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB30AHM3_B/H?
P6SMB30AHM3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB30AHM3_B/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_B/H?
For technical support, including P6SMB30AHM3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB30AHM3_B/H requirements.
6.How does Aetrix verify that P6SMB30AHM3_B/H is sourced from the original manufacturer or authorized distributors?
All P6SMB30AHM3_B/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_B/H meets industry standards.
7.What is the process for return or replacement of P6SMB30AHM3_B/H?
All P6SMB30AHM3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB30AHM3_B/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_B/H part is unused and in its original packaging.
Return procedure for P6SMB30AHM3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB30AHM3_B/H Tags
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