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Vishay General Semiconductor - Diodes Division P6SMB11AHE3/52
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- Part No.:
- P6SMB11AHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB11AHE3/52.pdf
- Description:
- TVS DIODE 9.4VWM 15.6VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,475
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Product details
Overview
P6SMB11AHE3/52 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 capability with a 10/1000 μs waveform - used to protect MOSFETs and ICs in industrial power supplies.
For engineers reviewing the P6SMB11AHE3/52 datasheet, P6SMB11AHE3/52 pinout, P6SMB11AHE3/52 application, or P6SMB11AHE3/52 equivalent, this part delivers AEC-Q101 qualified surge protection in automotive-grade configurations, with RoHS-compliant matte tin-plated leads, MSL Level 1 rating, and verified thermal resistance (RθJA = 100 °C/W).
Technical Context
This unidirectional TVS diode operates by avalanche breakdown to clamp transient overvoltages above its VWM (9.4 V), limiting downstream voltage to ≤15.6 V during 10/1000 μs surges up to 38.5 A. Its glass-passivated junction ensures stable leakage (<5 μA at VWM) and fast response time (<1 ns), while the SMB package supports automated placement and meets UL 94 V-0 flammability requirements.
The device is rated for continuous power dissipation of 5.0 W at 50 °C on infinite heatsink, with junction temperature range from –65 °C to +150 °C. Its low incremental surge resistance and 0.075 %/°C VBR temperature coefficient enable predictable clamping behavior across operating conditions in DC power rails and sensor interfaces.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 10.5–11.6 V at 1 mA test current - defines precise avalanche onset threshold for reliable overvoltage triggering |
| Stand-off Voltage VWM | 9.4 V - maximum continuous reverse voltage before significant leakage; sets safe operating margin below VBR |
| Clamping Voltage VC | 15.6 V at 38.5 A IPPM - limits peak voltage seen by protected circuit during worst-case 10/1000 μs surge |
| Peak Pulse Power PPPM | 600 W - sustains high-energy transients without failure under standardized 10/1000 μs waveform |
| Maximum Leakage ID | 5.0 μA at VWM - ensures minimal standby power loss and no interference with low-current sensor signals |
| Junction Temperature Range | –65 °C to +150 °C - supports operation in under-hood automotive and industrial environments |
| Thermal Resistance RθJA | 100 °C/W - enables thermal design using standard 0.2" × 0.2" copper pads per terminal |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102; polarity indicated by cathode band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse voltage reference | Connected to lower-potential side of protected line; establishes reference for unidirectional clamping |
| Cathode | Avalanche conduction path / Clamping node | Connected to higher-potential side (e.g., VIN rail); conducts surge current to ground when VAK > VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control units and body electronics requiring long-term reliability under thermal cycling |
| Glass passivated junction | Ensures stable electrical parameters and low leakage over lifetime, even under humidity and temperature stress |
| MSL Level 1 rating | Allows unlimited floor life and reflow compatibility up to 260 °C peak, eliminating moisture sensitivity handling constraints |
| 600 W peak pulse power | Withstands IEC 61000-4-5 Level 4 surges (4 kV line-to-earth) without degradation in properly designed layouts |
| Low clamping ratio (VC/VBR ≈ 1.44) | Minimizes voltage overshoot during transients, reducing stress on downstream MOSFET gate oxides and logic inputs |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs against load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VBAT and GND to clamp positive-going spikes above 11 V. Use Value: Limits voltage to ≤15.6 V during 38.5 A surges, preventing damage to LDO regulators and microcontroller power domains. |
Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) connected to ADC inputs in factory automation systems. IC Role / Device Role / Timing Role: TVS mounted at connector entry point to shunt ESD and switching noise before signal conditioning stage. Use Value: Sub-5 μA leakage preserves signal integrity; 15.6 V clamping prevents ADC input saturation during 8 kV contact ESD events. |
| DC-DC Converter Input Stage | Telecom Line Card Surge Protection |
Use Scenario: Input protection for 24 V input buck converters in PoE-powered equipment. IC Role / Device Role / Timing Role: Primary transient suppressor on VIN rail upstream of input filter capacitor and controller IC. Use Value: 600 W rating handles repetitive 10/1000 μs surges from inductive load switching; SMB footprint enables compact layout near connector. |
Use Scenario: Secondary-level surge suppression on low-voltage data/power lines in telecom base station interface cards. IC Role / Device Role / Timing Role: Standoff-rated TVS on 3.3 V or 5 V auxiliary rails feeding FPGA configuration or management controllers. Use Value: 9.4 V VWM provides 20% margin above 5 V nominal rail; AEC-Q101 qualification supports extended field life in harsh environments. |
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-E3/52 | Same SMB package, identical VBR (10.5–11.6 V), but lower PPPM (400 W) and higher VC (18.2 V at 22 A) | Less robust for high-energy transients like load dump; suitable only for ESD-limited environments | Select P6SMB11AHE3/52 when 600 W surge handling and tighter clamping are required. |
| 1.5SMC11A | Larger SMC (DO-214AB) package, same VBR range, but higher thermal mass and RθJA = 40 °C/W; not AEC-Q101 qualified | Requires larger PCB area; lacks automotive qualification and MSL Level 1 reflow compatibility | Choose P6SMB11AHE3/52 for space-constrained, automotive-grade, or high-volume SMT production. |
Compared with SMAJ11A-E3/52 and 1.5SMC11A, P6SMB11AHE3/52 uniquely combines AEC-Q101 qualification, 600 W surge rating, MSL Level 1, and SMB footprint - making it optimal for automotive and industrial designs where reliability, board space, and process compatibility are jointly critical.
Availability
P6SMB11AHE3/52 is available at Aetrix Electronics and suitable for automotive ECUs, industrial sensor nodes, and telecom power supply designs requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for P6SMB11AHE3/52 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, and protection devices with emphasis on reliability, efficiency, and application-specific performance.
The P6SMB Series targets high-reliability transient suppression in automotive, industrial, and telecom systems, engineered to meet stringent AEC-Q101, JEDEC, and IEC standards while enabling automated manufacturing.
FAQ
What is the breakdown voltage tolerance for P6SMB11AHE3/52?
The P6SMB11AHE3/52 has a specified breakdown voltage (VBR) range of 10.5 V to 11.6 V at 1 mA test current, corresponding to ±5% tolerance around the nominal 11 V rating. This tight tolerance ensures consistent clamping behavior across production lots and supports precise overvoltage margining in safety-critical circuits such as automotive power distribution modules.
Is P6SMB11AHE3/52 suitable for bidirectional transient suppression?
No, P6SMB11AHE3/52 is a unidirectional TVS diode, identified by the "A" suffix and cathode band marking. For bidirectional operation, Vishay offers the P6SMB11CA variant. Using P6SMB11AHE3/52 in AC-coupled or symmetrical surge scenarios would result in forward conduction during negative transients, potentially damaging the device or failing to protect the circuit.
What does the "HE3" suffix indicate in P6SMB11AHE3/52?
The "HE3" suffix in P6SMB11AHE3/52 denotes RoHS-compliant construction with AEC-Q101 qualification, distinguishing it from commercial-grade "E3" variants. This means the device meets automotive reliability requirements including temperature cycling, humidity testing, and mechanical shock - validated per AEC-Q101 Rev D - and is intended for use in engine control, body electronics, and ADAS subsystems.
How does the clamping voltage of P6SMB11AHE3/52 compare to its breakdown voltage?
The P6SMB11AHE3/52 clamps to a maximum of 15.6 V at 38.5 A peak pulse current (10/1000 μs), yielding a clamping ratio (VC/VBR) of approximately 1.44. This low ratio reflects efficient avalanche conduction and low dynamic impedance, ensuring protected ICs experience minimal overvoltage - critical for safeguarding 12 V logic interfaces and MOSFET gate drivers without derating headroom.
Can P6SMB11AHE3/52 be used in place of P6SMB11A-E3/52?
Yes, P6SMB11AHE3/52 is a direct replacement for P6SMB11A-E3/52 in all electrical and mechanical respects, with identical VBR, VWM, VC, and SMB package dimensions. The "HE3" adds AEC-Q101 qualification and RoHS compliance, making it suitable for automotive applications where the base "E3" version is restricted to commercial use - no PCB or schematic changes are needed.
P6SMB11AHE3/52 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:
- Discontinued at Digi-Key
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
P6SMB11AHE3/52 FAQ
1.How can I place an order for P6SMB11AHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB11AHE3/52 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 P6SMB11AHE3/52 reliable?
The price and inventory of P6SMB11AHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB11AHE3/52 is usually 5 days.
3.What payment methods are accepted for P6SMB11AHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB11AHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB11AHE3/52?
P6SMB11AHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB11AHE3/52 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 P6SMB11AHE3/52?
For technical support, including P6SMB11AHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB11AHE3/52 requirements.
6.How does Aetrix verify that P6SMB11AHE3/52 is sourced from the original manufacturer or authorized distributors?
All P6SMB11AHE3/52 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 P6SMB11AHE3/52 meets industry standards.
7.What is the process for return or replacement of P6SMB11AHE3/52?
All P6SMB11AHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB11AHE3/52, 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 P6SMB11AHE3/52 part is unused and in its original packaging.
Return procedure for P6SMB11AHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB11AHE3/52 Tags
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