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Vishay General Semiconductor - Diodes Division P6SMB11A-E3/52
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- Part No.:
- P6SMB11A-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB11A-E3/52.pdf
- Description:
- TVS DIODE 9.4VWM 15.6VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,818
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Product details
Overview
P6SMB11A-E3/52 from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the SMB (DO-214AA) package, designed for clamping voltage transients on power and signal lines. It features a 11 V breakdown voltage (VBR min/max = 10.5–11.6 V at 1 mA), 9.4 V stand-off voltage (VWM), 15.6 V maximum clamping voltage (VC) at 38.5 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 industrial power supplies.
For engineers reviewing the P6SMB11A-E3/52 datasheet, P6SMB11A-E3/52 pinout, P6SMB11A-E3/52 application, or P6SMB11A-E3/52 equivalent, key selection criteria include unidirectional polarity, cathode-band marking, 150 °C max junction temperature, RoHS-compliant matte tin plating, and MSL Level 1 moisture sensitivity per J-STD-020.
Technical Context
The P6SMB11A-E3/52 operates as a silicon avalanche diode with glass-passivated junction, delivering fast response time (<1 ns) and low incremental surge resistance to suppress transient overvoltages induced by inductive switching or ESD events. Its unidirectional configuration enables integration into DC power rails and forward-biased signal paths where polarity-aware clamping is required.
It is rated for 600 W peak pulse power under 10/1000 μs waveform at 0.01% duty cycle, with thermal resistance of 100 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead). The device meets AEC-Q101 qualification when ordered with HE3/HM3 suffixes, though P6SMB11A-E3/52 itself is commercial-grade RoHS-compliant.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 10.5–11.6 V at 1 mA test current - defines precise avalanche initiation threshold for reliable clamping onset |
| Stand-off Voltage VWM | 9.4 V - maximum continuous reverse voltage before leakage exceeds 5 μA, ensuring no conduction during normal operation |
| Clamping Voltage VC | 15.6 V at 38.5 A IPPM - limits transient voltage seen by protected downstream circuitry |
| Peak Pulse Power PPPM | 600 W with 10/1000 μs waveform - sustains high-energy surges without failure under defined test conditions |
| Peak Pulse Current IPPM | 38.5 A - maximum non-repetitive surge current the device can safely divert |
| Junction Temperature Range | -65 °C to +150 °C - supports operation in harsh industrial and automotive-adjacent environments |
| Package | SMB (DO-214AA) - surface-mount footprint with 0.220" × 0.130" body, optimized for automated placement and thermal pad layout |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads; cathode indicated by band marking on one end; polarity-critical for unidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / reverse voltage reference | Connected to lower-potential side (e.g., ground or return path); reverse-biased during transient suppression |
| Cathode | Avalanche clamping node | Marked with band; connected to protected line (e.g., 12 V rail); conducts surge current to anode during overvoltage |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power rating | Enables robust protection against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) on 12 V systems without derating |
| Glass passivated chip junction | Ensures stable VBR tolerance and long-term reliability under thermal cycling and humidity stress |
| MSL Level 1 rating | Allows unlimited floor life and reflow soldering at peak 260 °C without baking preconditioning |
| Low incremental surge resistance | Minimizes VC overshoot during fast transients, improving clamping precision for sensitive logic inputs |
| Automated placement compatibility | SMB package geometry and lead coplanarity meet IPC-7351B requirements for high-yield SMT assembly |
Applications
| Industrial Power Supply Protection | Automotive Body Control Module (BCM) |
|---|---|
Use Scenario: Protecting 12 V input rails of programmable logic controllers (PLCs) against load dump and relay coil flyback. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VIN and GND to clamp transients before they reach DC-DC converters and microcontrollers. Use Value: Limits voltage to ≤15.6 V during 38.5 A surges, preventing latch-up or gate oxide damage in downstream 16 V-rated ICs. |
Use Scenario: Safeguarding LIN bus transceivers and window motor drivers from battery voltage spikes during alternator load dump. IC Role / Device Role / Timing Role: Standoff-clamp TVS on 12 V supply line feeding BCM sub-circuits, operating within -40 °C to +125 °C ambient. Use Value: Maintains 9.4 V stand-off margin below nominal 12 V system voltage while clamping to 15.6 V - compatible with ISO 7637-2 Pulse 5a requirements. |
| Consumer Appliance Motor Drive | Telecom Power Interface |
Use Scenario: Shielding BLDC motor driver ICs in smart HVAC systems from inductive kickback during PWM commutation. IC Role / Device Role / Timing Role: Fast-response TVS across H-bridge high-side FET source and ground to absorb energy from motor back-EMF. Use Value: Sub-1 ns response ensures clamping activation before 100 ns rise-time transients exceed MOSFET VDSS ratings. |
Use Scenario: Protecting PoE-powered Ethernet PHYs and DC-DC front-ends from lightning-induced surges on 48 V input lines. IC Role / Device Role / Timing Role: Primary-level TVS on secondary-side 48 V distribution rail, coordinated with upstream gas discharge tube (GDT). Use Value: 600 W rating allows coordination with 5 kA GDT to handle Class B lightning surge (10/700 μs) without thermal runaway. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ11A | Same SMB package, identical VBR (10.5–11.6 V), but lower 400 W PPPM rating and higher VC (18.2 V @ 33 A) | Limited to lower-energy transients; unsuitable for IEC 61000-4-5 Level 4 compliance on 12 V lines | Select SMAJ11A only if system-level surge testing requires <400 W handling and board space constraints prohibit larger packages. |
| 1.5SMC11A | Higher-power SMC package (1500 W PPPM), same VBR/VWM, but 2.5× larger footprint and 3× higher thermal mass | Used where PCB layout permits larger devices and higher surge immunity (e.g., AC/DC front-end vs. point-of-load) | Choose 1.5SMC11A when protecting high-current 12 V distribution nodes requiring >600 W margin or extended surge repetition capability. |
Compared with SMAJ11A and 1.5SMC11A, P6SMB11A-E3/52 delivers optimal balance of 600 W surge capacity, SMB footprint, and 15.6 V clamping - making it preferred for space-constrained 12 V DC systems needing certified Level 4 surge resilience without SMC-level board area penalty.
Availability
P6SMB11A-E3/52 is available at Aetrix Electronics and suitable for industrial power supplies, automotive body electronics, consumer appliance motor drives, and telecom power interfaces requiring stable component supply with full traceability and RoHS compliance.
Supply support for P6SMB11A-E3/52 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, power efficiency, and automotive-grade qualification.
The P6SMB Series is engineered for high-reliability transient suppression in industrial, automotive, and consumer electronics - delivering consistent clamping performance across temperature and lifetime with standardized SMB packaging for broad design reuse.
FAQ
What is the maximum clamping voltage of P6SMB11A-E3/52 under standard test conditions?
The P6SMB11A-E3/52 has a maximum clamping voltage (VC) of 15.6 V when subjected to its rated peak pulse current of 38.5 A using the 10/1000 μs waveform. This value is measured at TA = 25 °C with specified mounting conditions (0.2" × 0.2" copper pads), and represents the upper voltage limit imposed on protected circuitry during transient events. The P6SMB11A-E3/52 maintains this clamping performance across its full operating temperature range.
Is P6SMB11A-E3/52 suitable for automotive applications requiring AEC-Q101 qualification?
No, P6SMB11A-E3/52 is a commercial-grade part with RoHS compliance but not AEC-Q101 qualified. For automotive use, Vishay offers the P6SMB11AHE3_B variant (with HE3 suffix and revision code B), which undergoes full AEC-Q101 stress testing and is marked accordingly. The P6SMB11A-E3/52 should be limited to industrial, consumer, or telecom applications where automotive qualification is not mandated.
How does the stand-off voltage VWM of P6SMB11A-E3/52 relate to typical 12 V system operation?
The P6SMB11A-E3/52 has a VWM of 9.4 V, providing a 2.6 V margin below nominal 12 V supply - sufficient to prevent leakage conduction during normal operation including cold-crank (6.5 V) and load-dump (up to 16 V) transients. This margin ensures the P6SMB11A-E3/52 remains non-conductive until voltage exceeds 10.5 V (VBR min), enabling clean separation between steady-state and surge conditions in 12 V systems.
What is the thermal resistance profile of P6SMB11A-E3/52, and how does it affect PCB layout?
P6SMB11A-E3/52 has a typical RθJA of 100 °C/W (junction-to-ambient) and RθJL of 20 °C/W (junction-to-lead), meaning effective heat dissipation relies heavily on copper pad area and via stitching. To maintain safe junction temperatures during repetitive surges, PCB layout must use minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, as specified in the datasheet - undersized pads will cause thermal derating of the P6SMB11A-E3/52's 600 W rating.
Can P6SMB11A-E3/52 be used in bidirectional configurations?
No, P6SMB11A-E3/52 is a unidirectional TVS diode, identifiable by its cathode band marking. Bidirectional operation requires the CA-suffixed variant (e.g., P6SMB11CA), which lacks polarity marking and provides symmetrical clamping in both directions. Using P6SMB11A-E3/52 in reverse-biased AC or floating signal lines would result in forward conduction and potential failure - always match the P6SMB11A-E3/52's unidirectional polarity to the circuit's voltage reference orientation.
P6SMB11A-E3/52 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):
- 9.4V
- Voltage - Breakdown (Min):
- 10.5V
- Voltage - Clamping (Max) @ Ipp:
- 15.6V
- Current - Peak Pulse (10/1000µs):
- 38.5A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
P6SMB11A-E3/52 FAQ
1.How can I place an order for P6SMB11A-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB11A-E3/52 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 P6SMB11A-E3/52 reliable?
The price and inventory of P6SMB11A-E3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB11A-E3/52 is usually 5 days.
3.What payment methods are accepted for P6SMB11A-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB11A-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB11A-E3/52?
P6SMB11A-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB11A-E3/52 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 P6SMB11A-E3/52?
For technical support, including P6SMB11A-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB11A-E3/52 requirements.
6.How does Aetrix verify that P6SMB11A-E3/52 is sourced from the original manufacturer or authorized distributors?
All P6SMB11A-E3/52 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 P6SMB11A-E3/52 meets industry standards.
7.What is the process for return or replacement of P6SMB11A-E3/52?
All P6SMB11A-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB11A-E3/52, 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 P6SMB11A-E3/52 part is unused and in its original packaging.
Return procedure for P6SMB11A-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB11A-E3/52 Tags
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