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Vishay General Semiconductor - Diodes Division P6SMB30AHE3/5B
- Part No.:
- P6SMB30AHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB30AHE3/5B.pdf
- Description:
- TVS DIODE 25.6VWM 41.4VC DO214AA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
P6SMB30AHE3/5B 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 a 30 V breakdown voltage (VBR = 28.5–31.5 V at 1 mA), 25.6 V stand-off voltage (VWM), 41.4 V maximum clamping voltage at 14.5 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - used to protect MOSFETs, ICs, and sensor interfaces in automotive and industrial power supplies.
For engineers reviewing the P6SMB30AHE3/5B datasheet, P6SMB30AHE3/5B pinout, P6SMB30AHE3/5B application, or P6SMB30AHE3/5B equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 150 °C max junction temperature, low incremental surge resistance, and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This TVS diode operates as a voltage-clamping protection device that enters avalanche conduction when reverse voltage exceeds its breakdown threshold. Its glass-passivated junction ensures stable leakage performance and fast response time (<1 ns), while the SMB package provides mechanical robustness and thermal dissipation via lead-to-pad conduction.
The device is rated for 100 A non-repetitive forward surge current (8.3 ms half-sine), supports 5.0 W steady-state power dissipation at 50 °C ambient, and exhibits a +0.097 %/°C temperature coefficient of VBR, enabling predictable clamping behavior across operating temperature ranges from –65 °C to +150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 28.5 V / 31.5 V at 1 mA test current - defines precise avalanche onset range for reliable overvoltage triggering |
| VWM | 25.6 V - maximum continuous reverse operating voltage before significant leakage begins |
| VC @ IPPM | 41.4 V at 14.5 A - clamped voltage during 600 W transient, limiting downstream stress on protected ICs |
| IPPM | 14.5 A with 10/1000 µs waveform - peak surge current capability under standardized lightning/surge test condition |
| TJ max | +150 °C - enables operation in under-hood automotive and high-temperature industrial environments |
| RθJA | 100 °C/W - thermal resistance from junction to ambient, defining derating requirements for PCB layout |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, unidirectional polarity with cathode band marking. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); matte tin-plated leads compliant with J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to lower-potential side of protected line | Provides low forward voltage drop (VF = 3.5 V at 50 A) during surge conduction path |
| Cathode | Current exit terminal in forward bias; marked with band; connected to higher-potential side or ground reference | Defines unidirectional clamping direction - conducts only when cathode voltage exceeds anode by ≥VBR |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables robust protection against IEC 61000-4-5 Level 4 surges without external heat sinking |
| Glass passivated junction | Ensures long-term stability of leakage current and breakdown voltage under humidity and thermal stress |
| MSL Level 1 (260 °C peak reflow) | Supports standard lead-free SMT reflow profiles without moisture-induced damage |
| Low profile SMB package | Reduces board space vs. SMA/SMB variants while maintaining thermal performance on 5 mm × 5 mm pads |
| AEC-Q101 qualification (HE3 suffix) | Validates suitability for automotive powertrain, body electronics, and ADAS sensor supply rails |
Applications
| Automotive Power Supply Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and alternator transients up to ±100 V. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between input rail and ground, triggered within nanoseconds of overvoltage event. Use Value: Limits voltage seen by downstream DC/DC converters and microcontrollers to ≤41.4 V, preventing latch-up or gate oxide damage. |
Use Scenario: Shielding analog output lines of pressure/temperature sensors from ESD and inductive switching noise in factory automation PLCs. IC Role / Device Role / Timing Role: Low-capacitance TVS shunting transient energy away from precision op-amp inputs and ADC front-ends. Use Value: Maintains signal integrity by clamping sub-100 ns ESD events to safe levels without distorting mV-level sensor signals. |
| Consumer Power Adapter Input Stage | Telecom Line Card Surge Protection |
Use Scenario: Safeguarding AC-DC adapter primary-side rectifier and controller ICs against line surges per IEC 61000-4-5. IC Role / Device Role / Timing Role: Standoff-rated TVS placed across bulk capacitor input, absorbing repetitive 600 W pulses without degradation. Use Value: Extends adapter lifetime by preventing cumulative degradation of electrolytic capacitors and MOSFETs during repeated surge events. |
Use Scenario: Protecting Ethernet PHY and PoE interface circuits from lightning-induced surges on RJ45 ports. IC Role / Device Role / Timing Role: Primary-stage unidirectional TVS on DC bias lines, coordinated with secondary GDT or polymer PTC devices. Use Value: Provides first-line clamping to <41.4 V before secondary protection activates, reducing let-through energy to sensitive PHY ICs. |
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 specs but SMA package (larger footprint, higher RθJA = 140 °C/W) | Limited to lower-power or less thermally constrained layouts; not AEC-Q101 qualified | Select when cost sensitivity outweighs automotive qualification or board space constraints |
| 1.5SMC30AHE3/A | Same electrical specs but SMC (DO-214AB) package - 20 % larger footprint, 7.5 mm length, higher IPPM margin (15.2 A) | Better thermal handling for high-duty-cycle surge environments; requires revised pad layout | Choose for industrial motor drives where sustained surge repetition demands extra margin |
Compared with SMAJ30A-E3/5B and 1.5SMC30AHE3/A, P6SMB30AHE3/5B delivers AEC-Q101 qualification in the smallest standard footprint (SMB), enabling automotive-compliant protection without sacrificing board area - critical for compact ADAS camera modules and battery management systems.
Availability
P6SMB30AHE3/5B is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, and consumer power adapter designs requiring stable component supply, AEC-Q101 validation, and consistent SMB package form factor.
Supply support for P6SMB30AHE3/5B 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, thermal performance, and automotive-grade qualification.
The P6SMB Series targets high-reliability transient suppression in space-constrained applications, with design focus on AEC-Q101 compliance, low-profile SMT integration, and stable clamping under repetitive surge conditions.
FAQ
What is the maximum clamping voltage of the P6SMB30AHE3/5B under a 10/1000 µs surge?
The P6SMB30AHE3/5B has a maximum clamping voltage (VC) of 41.4 V at 14.5 A peak pulse current (IPPM) under the standardized 10/1000 µs waveform. This value is measured per Figure 1 in Vishay document 88370 and defines the upper voltage limit imposed on protected circuitry during transient events. The P6SMB30AHE3/5B maintains this clamping performance across its full operating temperature range.
Is the P6SMB30AHE3/5B suitable for automotive applications?
Yes, the P6SMB30AHE3/5B is AEC-Q101 qualified, as confirmed by the "HE3" suffix and Vishay documentation revision 09-Jan-2024. It meets automotive reliability requirements including temperature cycling, high-temperature reverse bias (HTRB), and ESD testing. The P6SMB30AHE3/5B is explicitly recommended for under-hood ECUs, body control modules, and ADAS sensor power rails where transient immunity and long-term stability are critical.
What does the "5B" in P6SMB30AHE3/5B indicate?
The "5B" denotes the packaging configuration: 13-inch diameter plastic tape and reel, containing 3200 units per reel. This differs from "52", which indicates a 7-inch reel with 750 units. The P6SMB30AHE3/5B is optimized for high-volume SMT assembly lines requiring extended reel life and reduced changeover frequency. Both variants share identical electrical and thermal specifications.
How does the P6SMB30AHE3/5B compare to bidirectional TVS diodes like P6SMB30CAHE3/5B?
The P6SMB30AHE3/5B is unidirectional and features a cathode band marking, while P6SMB30CAHE3/5B is bidirectional with no polarity marking. Unidirectional versions offer lower leakage current at VWM (1 µA vs. 10 µA for bidirectional) and are preferred for DC power rail protection. The P6SMB30AHE3/5B should not be substituted for bidirectional use cases such as AC line or differential signal protection without circuit redesign.
What is the thermal resistance of the P6SMB30AHE3/5B, and how does it affect PCB layout?
The P6SMB30AHE3/5B has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. To maintain TJ ≤ 150 °C at full 5.0 W steady-state dissipation, designers must ensure adequate copper area and avoid excessive ambient temperature rise. The P6SMB30AHE3/5B thermal performance is optimized for standard SMB land patterns defined in Vishay's DO-214AA outline drawing.
P6SMB30AHE3/5B 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:
- Discontinued at Digi-Key
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB30AHE3/5B FAQ
1.How can I place an order for P6SMB30AHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB30AHE3/5B 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 P6SMB30AHE3/5B reliable?
The price and inventory of P6SMB30AHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB30AHE3/5B is usually 5 days.
3.What payment methods are accepted for P6SMB30AHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB30AHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB30AHE3/5B?
P6SMB30AHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB30AHE3/5B 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 P6SMB30AHE3/5B?
For technical support, including P6SMB30AHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB30AHE3/5B requirements.
6.How does Aetrix verify that P6SMB30AHE3/5B is sourced from the original manufacturer or authorized distributors?
All P6SMB30AHE3/5B 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 P6SMB30AHE3/5B meets industry standards.
7.What is the process for return or replacement of P6SMB30AHE3/5B?
All P6SMB30AHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB30AHE3/5B, 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 P6SMB30AHE3/5B part is unused and in its original packaging.
Return procedure for P6SMB30AHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB30AHE3/5B Tags
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