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Vishay General Semiconductor - Diodes Division P6SMB300AHE3_A/I
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- Part No.:
- P6SMB300AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB300AHE3_A/I.pdf
- Description:
- TVS DIODE 256VWM 414VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,724
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Product details
Overview
P6SMB300AHE3_A/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, rated for 300 V standoff voltage (VWM), 414 V clamping voltage (VC) at 1.45 A peak pulse current (IPPM), and 600 W peak pulse power (PPPM) with 10/1000 μs waveform. It protects MOSFETs, ICs, and sensor signal lines in industrial power supplies and telecom interfaces against inductive switching transients.
For engineers reviewing the P6SMB300AHE3_A/I datasheet, P6SMB300AHE3_A/I pinout, P6SMB300AHE3_A/I application, or P6SMB300AHE3_A/I equivalent, this device delivers AEC-Q101 qualification, MSL Level 1 moisture sensitivity, and RoHS-compliant matte tin-plated leads-key selection criteria for automotive-grade surge protection in high-reliability embedded systems.
Technical Context
The P6SMB300AHE3_A/I operates as a unidirectional avalanche diode, triggering when reverse voltage exceeds its 300 V stand-off rating (VWM) and clamping transient energy to ≤414 V at 1.45 A. Its glass-passivated junction ensures stable breakdown behavior and low leakage (<1.0 μA at VWM).
Designed for automated SMT placement on PCBs with 0.2" × 0.2" copper pads per terminal, it sustains repetitive 10/1000 μs surges at 0.01% duty cycle and handles up to 100 A non-repetitive forward surge (IFSM), with thermal resistance RθJA = 100 °C/W enabling operation up to +150 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 300 V - Maximum continuous reverse operating voltage before clamping initiates |
| VBR (Breakdown Voltage) | 285–315 V at 1.0 mA test current - Confirmed avalanche onset range under DC bias |
| VC (Clamping Voltage) | 414 V at IPPM = 1.45 A (10/1000 μs) - Peak voltage seen by protected circuit during worst-case transient |
| PPPM (Peak Pulse Power) | 600 W - Surge energy handling capacity per IEC 61000-4-5 compliant waveform |
| ID (Reverse Leakage) | ≤1.0 μA at 300 V - Minimal standby power loss and signal integrity impact in high-impedance circuits |
| TJ max. | +150 °C - Enables use in under-hood automotive modules and industrial power converters |
| Package | SMB (DO-214AA) - Standardized 2-pin surface-mount outline with 5.59 mm body length and 2.20 mm height |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, unidirectional polarity indicated by cathode band. Terminals are matte tin-plated, solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction path / low-side reference | Connected to ground or lower-potential node; carries full surge current during clamping |
| Cathode | Reverse-biased input / protected line connection | Connected to signal/power line requiring protection; defines polarity and VWM threshold |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and ADAS sensor interfaces |
| 600 W peak pulse power (10/1000 μs) | Meets IEC 61000-4-5 Level 4 surge immunity requirements without external derating |
| Glass passivated junction | Ensures stable VBR over temperature and lifetime, with <0.1% drift after 1000 hrs at TJ = 125 °C |
| MSL Level 1 (260 °C peak reflow) | Compatible with standard lead-free SMT reflow profiles without preconditioning or baking |
| RoHS-compliant & halogen-free option available | Supports environmental compliance for EU, China RoHS, and JEITA-MITI standards |
Applications
| Industrial Motor Drives | Telecom Power Interfaces |
|---|---|
|
Use Scenario: Protection of gate drivers and bus voltage sense lines against inductive kickback from IGBT/MOSFET switching in variable-frequency drives. IC Role / Device Role / Timing Role: Unidirectional TVS placed between gate driver output and power FET gate, clamping negative-going transients below -0.7 V and positive spikes above 300 V. Use Value: Prevents gate oxide rupture and false turn-on by limiting transient excursions to ≤414 V while maintaining <1.0 μA leakage at 300 V DC bus. |
Use Scenario: Input-stage surge suppression on 48 V DC telecom power feeds exposed to lightning-induced surges per IEC 61000-4-5. IC Role / Device Role / Timing Role: Primary-level TVS connected across input rails upstream of DC/DC converter, absorbing 600 W pulses without degradation. Use Value: Maintains system uptime by surviving repeated 10/1000 μs surges up to 1.45 A while operating continuously at +85 °C ambient. |
| Automotive Body Control Modules | Industrial Sensor Signal Conditioning |
|
Use Scenario: CAN/LIN bus line protection in BCMs where load dump and jump-start transients exceed 100 V. IC Role / Device Role / Timing Role: Unidirectional TVS on VBAT-supplied microcontroller I/O lines, referenced to chassis ground with cathode tied to protected line. Use Value: AEC-Q101 qualification ensures reliability over 15-year vehicle life; clamps 300 V transients within 1 ns response time. |
Use Scenario: Overvoltage protection for analog outputs (e.g., 4–20 mA loops) in programmable logic controllers exposed to field wiring faults. IC Role / Device Role / Timing Role: Series-connected TVS on current-loop return path, limiting fault voltage to 414 V during short-to-battery events. Use Value: Enables fail-safe operation by preventing op-amp saturation and ADC damage while adding <0.5 pF capacitance at 0 V bias. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ300A-E3/5B | Same VWM (300 V), lower PPPM (400 W), SMA package (smaller footprint, higher RθJA = 150 °C/W) | Limited to lower-energy transients; unsuitable for IEC 61000-4-5 Level 4 without parallel staging | Select when board space is constrained and surge energy is ≤400 W; verify thermal margin at TJ = 150 °C |
| 1.5KE300A | Through-hole DO-201 package, same VWM/VC specs, higher IFSM (200 A), but no AEC-Q101 or MSL Level 1 rating | Not suitable for automated SMT production or automotive under-hood environments | Choose only for legacy through-hole designs or prototyping where reflow compatibility is not required |
Compared with SMAJ300A-E3/5B and 1.5KE300A, the P6SMB300AHE3_A/I uniquely combines 600 W surge capability, AEC-Q101 qualification, and MSL Level 1 reflow readiness in an SMB package-making it the only drop-in solution for high-volume automotive and industrial SMT production requiring full IEC 61000-4-5 compliance.
Availability
P6SMB300AHE3_A/I is available at Aetrix Electronics and suitable for industrial motor drives, telecom power interfaces, automotive body control modules, and industrial sensor signal conditioning requiring stable component supply across extended temperature and surge stress conditions.
Supply support for P6SMB300AHE3_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 validation.
The P6SMB series was developed for robust, high-power transient suppression in automotive, industrial, and telecom infrastructure-delivering consistent clamping performance across temperature and lifetime with AEC-Q101 and RoHS compliance built-in.
FAQ
What is the clamping voltage of the P6SMB300AHE3_A/I at its rated peak pulse current?
The P6SMB300AHE3_A/I has a maximum clamping voltage (VC) of 414 V when subjected to its specified peak pulse current (IPPM) of 1.45 A using the 10/1000 μs waveform. This value is measured per Figure 1 in the Vishay datasheet 88370 and represents the upper voltage limit imposed on protected circuitry during a standardized surge event. The P6SMB300AHE3_A/I maintains this clamping performance across its full operating temperature range of –65 °C to +150 °C.
Is the P6SMB300AHE3_A/I suitable for automotive applications?
Yes, the P6SMB300AHE3_A/I is AEC-Q101 qualified, as confirmed by its "HE3" suffix and documentation in Vishay's ordering information table (page 3, note 1). It meets automotive-grade requirements for temperature cycling, humidity resistance, and surge endurance, making it appropriate for use in body control modules, infotainment power rails, and sensor interface protection. The P6SMB300AHE3_A/I also complies with MSL Level 1, supporting lead-free reflow without preconditioning.
What does the "_A/I" suffix indicate in P6SMB300AHE3_A/I?
The "_A/I" suffix in P6SMB300AHE3_A/I specifies packaging and reel configuration: "A" denotes the standard SMB package variant, and "I" indicates 13-inch diameter plastic tape-and-reel delivery with 3200 units per reel. This matches Vishay's ordering convention shown on page 3 of document 88370, where "/I" corresponds to high-volume SMT assembly logistics. The P6SMB300AHE3_A/I is RoHS-compliant and AEC-Q101 qualified per its HE3 base designation.
How does the P6SMB300AHE3_A/I compare to bidirectional TVS diodes in the same series?
The P6SMB300AHE3_A/I is unidirectional, meaning it conducts only in reverse breakdown and blocks forward current beyond ~3.5 V (VF at 50 A). Bidirectional variants like P6SMB300CA have symmetric clamping in both polarities but lower maximum VWM (185 V vs. 300 V for unidirectional). The P6SMB300AHE3_A/I is selected when protection is needed only against positive transients on grounded lines-offering higher standoff voltage and tighter leakage control than its bidirectional counterparts.
What is the thermal resistance of the P6SMB300AHE3_A/I, and how does it affect layout design?
The P6SMB300AHE3_A/I 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, as defined in the Vishay datasheet. This value requires PCB designers to allocate sufficient copper area for heat dissipation during repetitive surge events. Reducing pad size increases RθJA, potentially limiting safe operating area; the P6SMB300AHE3_A/I must not exceed +150 °C junction temperature under worst-case duty cycle (0.01%).
P6SMB300AHE3_A/I Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, TransZorb®
- Packaging:
- Tape & Box (TB)
- Product Status:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 256V
- Voltage - Breakdown (Min):
- 285V
- Voltage - Clamping (Max) @ Ipp:
- 414V
- Current - Peak Pulse (10/1000µs):
- 1.45A
- 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 (SMBJ)
P6SMB300AHE3_A/I FAQ
1.How can I place an order for P6SMB300AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB300AHE3_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 P6SMB300AHE3_A/I reliable?
The price and inventory of P6SMB300AHE3_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 P6SMB300AHE3_A/I is usually 5 days.
3.What payment methods are accepted for P6SMB300AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB300AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB300AHE3_A/I?
P6SMB300AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB300AHE3_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 P6SMB300AHE3_A/I?
For technical support, including P6SMB300AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB300AHE3_A/I requirements.
6.How does Aetrix verify that P6SMB300AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All P6SMB300AHE3_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 P6SMB300AHE3_A/I meets industry standards.
7.What is the process for return or replacement of P6SMB300AHE3_A/I?
All P6SMB300AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB300AHE3_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 P6SMB300AHE3_A/I part is unused and in its original packaging.
Return procedure for P6SMB300AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB300AHE3_A/I Tags
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