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Vishay General Semiconductor - Diodes Division P6SMB300AHE3_ALL
- Part No.:
- P6SMB300AHE3_ALL
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB300AHE3_ALL.pdf
- Description:
- TVS DIODE 256VWM 414VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,307
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Product details
Overview
P6SMB300AHE3_ALL from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the P6SMB series, designed for high-energy surge protection on DC power rails and signal lines. It features a 300 V standoff voltage (VWM), 344 A peak pulse current (IPPM) at 10/1000 μs, and clamps transients to 414 V (VC), with 600 W peak pulse power capability and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the P6SMB300AHE3_ALL datasheet, P6SMB300AHE3_ALL pinout, P6SMB300AHE3_ALL application, or P6SMB300AHE3_ALL equivalent, key selection criteria include its unidirectional polarity, SMB (DO-214AA) package compatibility, 300 V working voltage rating, clamping performance under IEC 61000-4-5 surge conditions, and suitability for automotive ECU, industrial power supply, and telecom interface protection.
Technical Context
This TVS diode operates as a clamping device that remains non-conductive below its reverse standoff voltage (VWM = 300 V) and rapidly transitions to low-impedance conduction when transient voltage exceeds its breakdown threshold (VBR min = 285 V, max = 315 V at IT = 1 mA). Its glass-passivated junction ensures stable avalanche characteristics and long-term reliability under repetitive surge stress.
The device delivers 600 W peak pulse power handling per 10/1000 μs waveform at 0.01% duty cycle, with thermal resistance RθJA = 100 °C/W and maximum junction temperature of 150 °C. It meets MSL Level 1 per J-STD-020 and is qualified to AEC-Q101, confirming suitability for automotive under-hood and infotainment applications requiring robust transient immunity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 300 V - Maximum continuous reverse operating voltage before clamping initiates; defines safe DC rail operating margin. |
| VBR (Breakdown Voltage) | 285–315 V at IT = 1 mA - Confirmed avalanche onset range; ensures predictable turn-on during overvoltage events. |
| VC (Clamping Voltage) | 414 V at IPPM = 344 A - Maximum voltage seen by protected circuit during full-rated 10/1000 μs surge; determines system-level voltage stress. |
| PPPM (Peak Pulse Power) | 600 W - Sustains standardized IEC 61000-4-5 surge energy without degradation; enables single-device protection for Class 3–4 interfaces. |
| IPPM (Peak Pulse Current) | 344 A - Peak current handled at 10/1000 μs waveform; directly supports 2 kV/12 Ω IEC 61000-4-5 compliance testing. |
| TJ max | 150 °C - Maximum junction temperature; allows operation in under-hood automotive environments and high-ambient industrial settings. |
| Package | SMB (DO-214AA) - Standardized surface-mount outline with 5.59 mm × 4.06 mm footprint; compatible with automated pick-and-place and reflow processes. |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads, UL 94 V-0 rated, MSL Level 1, 260 °C lead-free reflow compatible. Cathode indicated by band marking on unidirectional devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse surge return path | Connected to ground or low-impedance return plane; completes clamping loop during transient events. |
| Cathode | Reverse voltage sensing / Clamping output node | Connected to protected line (e.g., 300 V DC rail); conducts avalanche current when VAK > VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control units and ADAS power domains, with extended temperature cycling and humidity testing. |
| 600 W peak pulse power (10/1000 μs) | Enables single-device protection against severe lightning-induced surges per IEC 61000-4-5 Level 4 (4 kV) on properly decoupled lines. |
| Glass-passivated junction | Ensures stable, repeatable avalanche characteristics over 100,000+ surge cycles with minimal parameter drift. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (<1 ns rise time), improving protection margin for sensitive downstream ICs. |
| MSL Level 1 moisture sensitivity | Eliminates bake requirements prior to reflow; supports standard SMT assembly without special handling or dry-packaging. |
Applications
| Automotive Engine Control Unit (ECU) Power Input | Industrial 24–300 V DC Power Supply Rail |
|---|---|
Use Scenario: Protects microcontroller and CAN transceiver power inputs from load-dump transients (ISO 7637-2 Pulse 5a, up to +35 V/100 ms) and alternator ripple-induced spikes. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between battery rail and LDO input, conducting only during positive overvoltage events. Use Value: Limits voltage seen by downstream regulators to ≤414 V during 300 V surge events, preventing latch-up or gate oxide damage in 3.3 V/5 V logic. |
Use Scenario: Shields programmable logic controllers (PLCs) and motor drives from switching transients generated by contactor coil de-energization or regenerative braking feedback. IC Role / Device Role / Timing Role: Standoff-rated TVS mounted across main DC bus (e.g., 300 V nominal), absorbing repetitive 600 W pulses without derating. Use Value: Maintains system uptime by preventing nuisance tripping of overvoltage protection circuits during routine 100–500 A inductive kick events. |
| Telecom Remote Radio Head (RRH) DC Feeder Line | Renewable Energy Solar Inverter DC Link |
Use Scenario: Safeguards RF front-end components and bias supplies in outdoor base station equipment exposed to induced lightning surges on -48 V DC feeder lines. IC Role / Device Role / Timing Role: Primary surge clamp on DC input, coordinated with upstream GDT and downstream π-filter for multi-stage protection. Use Value: Achieves IEC 61000-4-5 Level 4 (4 kV line-earth) compliance with <50 ns response time and no follow-on current issues. |
Use Scenario: Protects IGBT gate drivers and DC-link capacitors in string inverters subjected to grid-switching transients and PV array fault currents. IC Role / Device Role / Timing Role: High-VWM TVS placed across 300–600 V DC link to clamp commutation spikes and prevent overvoltage failure of film capacitors. Use Value: Extends capacitor lifetime by limiting peak voltage excursions to 414 V, reducing dielectric stress and leakage current acceleration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ300A-E3/52 | Same VWM (300 V), lower PPPM (400 W), higher VC (430 V), SMA package (smaller footprint, higher RθJA). | Limited to lower-energy surges; not AEC-Q101 qualified; suitable for commercial-grade consumer power supplies. | Select when board space is constrained and automotive qualification is unnecessary; verify thermal margin with RθJA = 150 °C/W. |
| 1.5SMC300A | Same VWM (300 V), identical PPPM (600 W), but larger SMC (DO-214AB) package and higher minimum VBR (285 V vs. 285–315 V). | Better thermal dissipation (RθJA ≈ 70 °C/W), suited for high-reliability industrial power modules with forced airflow. | Choose when PCB layout allows larger footprint and enhanced thermal performance is required over AEC-Q101 compliance. |
Compared with SMAJ300A-E3/52 and 1.5SMC300A, P6SMB300AHE3_ALL uniquely combines AEC-Q101 qualification, SMB footprint compactness, and guaranteed 600 W surge handling-making it optimal for space-constrained automotive ECUs where qualification and consistent clamping are mandatory.
Availability
P6SMB300AHE3_ALL is available at Aetrix Electronics and suitable for automotive electronic control units, industrial 300 V DC power systems, and telecom remote radio head protection requiring stable component supply, long-term lifecycle support, and traceable AEC-Q101-compliant sourcing.
Supply support for P6SMB300AHE3_ALL 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 is engineered for high-power transient suppression in harsh environments, targeting automotive, industrial, and telecom infrastructure where robustness against lightning, ESD, and inductive switching surges is critical.
FAQ
What is the clamping voltage of P6SMB300AHE3_ALL at its rated peak pulse current?
The P6SMB300AHE3_ALL has a maximum clamping voltage (VC) of 414 V when subjected to its rated peak pulse current (IPPM) of 344 A under the standard 10/1000 μs waveform. This value is measured per JEDEC test conditions and defines the upper voltage limit imposed on protected circuitry during full-rated surge events. The P6SMB300AHE3_ALL maintains this clamping performance across its specified operating temperature range (-65 °C to +150 °C).
Is P6SMB300AHE3_ALL suitable for automotive applications?
Yes, P6SMB300AHE3_ALL is AEC-Q101 qualified and explicitly designated for automotive use via its "HE3" suffix, indicating RoHS-compliant construction and qualification to the AEC-Q101 stress test standard. It is deployed in engine control units, body control modules, and ADAS power domains where sustained operation at 150 °C junction temperature and immunity to load-dump transients are required. The P6SMB300AHE3_ALL meets all applicable mechanical, thermal, and reliability requirements for under-hood automotive environments.
What does the "HE3" suffix in P6SMB300AHE3_ALL signify?
The "HE3" suffix in P6SMB300AHE3_ALL indicates RoHS-compliant, AEC-Q101-qualified construction with matte tin-plated leads meeting J-STD-002 and JESD 22-B102 solderability standards. It distinguishes this variant from commercial-grade "E3" parts and confirms compliance with automotive reliability requirements including temperature cycling, humidity bias, and mechanical shock testing. The P6SMB300AHE3_ALL is intended for high-reliability applications where qualification documentation and traceable manufacturing are mandatory.
How does P6SMB300AHE3_ALL differ from bidirectional TVS diodes like P6SMB300CA?
P6SMB300AHE3_ALL is unidirectional and functions only during positive overvoltage events on the cathode terminal, making it ideal for DC power rail protection where polarity is fixed. In contrast, P6SMB300CA is bidirectional and clamps both positive and negative transients-suitable for AC lines or differential signal pairs. The P6SMB300AHE3_ALL offers tighter VBR tolerance (285–315 V) and lower leakage at VWM than its bidirectional counterpart, which has reduced VWM/VBR ranges (max 185 V/220 V) due to dual-junction architecture.
What is the thermal resistance of P6SMB300AHE3_ALL, and how does it affect layout design?
The P6SMB300AHE3_ALL 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. This value assumes minimum recommended pad layout per Vishay specification; increasing copper area or adding thermal vias reduces effective RθJA. For continuous power dissipation (PD = 5.0 W), ambient temperature must remain ≤50 °C to keep junction temperature within the 150 °C limit. Layout decisions directly impact the P6SMB300AHE3_ALL's ability to survive repetitive surge events without thermal runaway.
P6SMB300AHE3_ALL 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:
- Active
- 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 (SMB)
P6SMB300AHE3_ALL FAQ
1.How can I place an order for P6SMB300AHE3_ALL through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB300AHE3_ALL 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_ALL reliable?
The price and inventory of P6SMB300AHE3_ALL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB300AHE3_ALL is usually 5 days.
3.What payment methods are accepted for P6SMB300AHE3_ALL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB300AHE3_ALL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB300AHE3_ALL?
P6SMB300AHE3_ALL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB300AHE3_ALL 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_ALL?
For technical support, including P6SMB300AHE3_ALL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB300AHE3_ALL requirements.
6.How does Aetrix verify that P6SMB300AHE3_ALL is sourced from the original manufacturer or authorized distributors?
All P6SMB300AHE3_ALL 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_ALL meets industry standards.
7.What is the process for return or replacement of P6SMB300AHE3_ALL?
All P6SMB300AHE3_ALL units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB300AHE3_ALL, 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_ALL part is unused and in its original packaging.
Return procedure for P6SMB300AHE3_ALL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB300AHE3_ALL Tags
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