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Vishay General Semiconductor - Diodes Division P6SMB11AHE3_B/I
- Part No.:
- P6SMB11AHE3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB11AHE3_B/I.pdf
- Description:
- 600W,11V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:4,925
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Product details
Overview
P6SMB11AHE3_B/I 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 11 V breakdown voltage (VBR min/max: 10.5–11.6 V), 9.4 V stand-off voltage (VWM), 15.6 V maximum clamping voltage at 38.5 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - deployed in automotive sensor protection and industrial I/O interface circuits.
For engineers reviewing the P6SMB11AHE3_B/I datasheet, P6SMB11AHE3_B/I pinout, P6SMB11AHE3_B/I application, or P6SMB11AHE3_B/I equivalent, key selection criteria include its AEC-Q101 qualification, unidirectional polarity with cathode band marking, low incremental surge resistance, and compliance with J-STD-020 MSL level 1 (260 °C peak reflow).
Technical Context
This TVS diode operates as a clamping device that conducts above its reverse standoff voltage (9.4 V), entering avalanche breakdown between 10.5 V and 11.6 V at 1 mA test current. Its response time is sub-nanosecond, enabling suppression of fast ESD and inductive switching transients before downstream ICs are damaged.
Thermal performance is defined by RθJA = 100 °C/W (junction-to-ambient, typical) and RθJL = 20 °C/W (junction-to-lead), supporting reliable operation up to 150 °C junction temperature. The device is rated for 100 A non-repetitive forward surge current (8.3 ms half-sine) and dissipates 5.0 W continuously at 50 °C ambient on infinite heatsink.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 10.5–11.6 V at 1 mA - defines precise avalanche onset threshold for predictable clamping behavior |
| Stand-off Voltage VWM | 9.4 V - maximum continuous reverse voltage before leakage exceeds 5 μA, ensuring no false triggering |
| Clamping Voltage VC | 15.6 V at 38.5 A (10/1000 µs) - limits transient voltage seen by protected circuitry to safe levels |
| Peak Pulse Power PPPM | 600 W - sustains high-energy surges (e.g., ISO 7637-2 Pulse 1/2a/5a) without failure |
| Operating Temperature | –65 °C to +150 °C - supports under-hood automotive and industrial environments |
| AEC-Q101 Qualified | Yes - validated for automotive-grade reliability per stress test requirements (HTOL, TCT, etc.) |
| Package | SMB (DO-214AA) - surface-mount footprint compatible with automated assembly and IPC-7351B land patterns |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads; cathode indicated by band on one end; polarity-critical for unidirectional operation.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or lower-potential rail; completes conduction path during transient clamp |
| Cathode | High-side connection point | Connected to protected line (e.g., 12 V supply or CAN_H); band-marked terminal defines polarity |
Key Features
| Feature | Design Value |
|---|---|
| Glass passivated junction | Enables stable, repeatable avalanche characteristics and long-term reliability under repeated surge stress |
| 600 W peak pulse power (10/1000 µs) | Handles high-energy transients common in automotive load-dump and inductive switch-off events |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow soldering without moisture-induced damage or popcorn effect |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive electronics use including engine control units, body modules, and ADAS sensors |
| Low clamping ratio (VC/VBR ≈ 1.43) | Minimizes overvoltage margin required for protected ICs, improving system-level robustness |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
|
Use Scenario: Protecting analog output lines of pressure/temperature sensors in engine bay environments subject to ISO 7637-2 pulses and ESD. IC Role / Device Role / Timing Role: Unidirectional TVS placed between sensor VOUT and ground to clamp negative transients and limit positive overshoot to ≤15.6 V. Use Value: Prevents latch-up or permanent damage to 3.3 V or 5 V ADC inputs while maintaining signal integrity below 9.4 V normal operation. |
Use Scenario: Safeguarding RS-485 transceiver data lines in factory automation PLCs exposed to motor drive noise and ground bounce. IC Role / Device Role / Timing Role: Bidirectional clamping not applicable; this unidirectional part used on power rails (VCC, GND) feeding the transceiver IC. Use Value: Absorbs 600 W surge energy without degradation, preserving communication uptime and reducing field return rates. |
| Consumer Power Adapter Input | Telecom DC Power Feed |
|
Use Scenario: Secondary-side overvoltage protection in AC/DC adapters for smart home devices, guarding against transformer regulation failure. IC Role / Device Role / Timing Role: Placed across 12 V output rail and ground to clamp fault conditions exceeding 11.6 V. Use Value: Limits fault voltage to 15.6 V, preventing catastrophic failure of downstream DC-DC converters and USB-PD controllers. |
Use Scenario: Surge protection on -48 V DC feed lines powering remote radio units in 4G/5G base stations. IC Role / Device Role / Timing Role: Unidirectional TVS connected anode-to-rail, cathode-to-ground to suppress positive-going transients on negative supply. Use Value: Withstands repetitive 10/1000 µs surges up to 600 W, meeting Telcordia GR-1089-CORE immunity requirements. |
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-E3/5B | Same VWM (9.4 V), identical SMB package, but rated for 400 W PPPM (vs. 600 W) | Limited to lower-energy transients (e.g., IEC 61000-4-2 ESD only); not suitable for ISO 7637-2 load dump | Select when cost sensitivity outweighs peak surge requirement and AEC-Q101 is not mandated |
| 1.5SMC11A | Higher package thermal resistance (RθJA ≈ 120 °C/W), same VBR range, but SMC (DO-214AB) package - 2.5 mm wider | Requires PCB layout change; better heat dissipation margin but incompatible with dense SMB footprints | Choose only if board space allows larger SMC pad layout and higher thermal mass is needed for sustained surge duty |
Compared with SMAJ11A-E3/5B and 1.5SMC11A, P6SMB11AHE3_B/I delivers superior 600 W surge handling in the compact SMB form factor while providing AEC-Q101 validation - making it the preferred choice for automotive and high-reliability industrial designs where both space and ruggedness are constrained.
Availability
P6SMB11AHE3_B/I is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, and telecom DC power systems requiring stable component supply, AEC-Q101 traceability, and consistent SMB package compatibility.
Supply support for P6SMB11AHE3_B/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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The P6SMB Series targets high-energy transient suppression in automotive, industrial, and telecom infrastructure - engineered for robustness under harsh electrical and thermal stress while maintaining tight parametric tolerances.
FAQ
What is the clamping voltage of P6SMB11AHE3_B/I at its rated peak pulse current?
The P6SMB11AHE3_B/I has a maximum clamping voltage (VC) of 15.6 V at 38.5 A peak pulse current with a 10/1000 µs waveform. This value is measured under standardized test conditions and defines the upper voltage limit imposed on protected circuitry during surge events. The P6SMB11AHE3_B/I maintains this clamping performance across its specified operating temperature range and is validated per AEC-Q101 stress requirements.
Is P6SMB11AHE3_B/I suitable for bidirectional transient suppression?
No, P6SMB11AHE3_B/I is a unidirectional TVS diode - its cathode band marks the high-side terminal, and it conducts only when the cathode is more positive than the anode. For bidirectional protection, Vishay offers the P6SMB11CA variant. Using P6SMB11AHE3_B/I in a bidirectional configuration would leave the reverse-polarity transient path unprotected, risking component or system failure.
Does P6SMB11AHE3_B/I meet automotive qualification standards?
Yes, P6SMB11AHE3_B/I is AEC-Q101 qualified, as confirmed by the "HE3" suffix and documentation in Vishay's P6SMB series datasheet (Rev. 09-Jan-2024). This qualification covers stress tests including high-temperature operating life, temperature cycling, and ESD, making P6SMB11AHE3_B/I appropriate for under-hood and chassis-mounted automotive electronics where reliability is critical.
What is the maximum steady-state power dissipation for P6SMB11AHE3_B/I?
The P6SMB11AHE3_B/I has a maximum power dissipation (PD) of 5.0 W at 50 °C ambient temperature on an infinite heatsink. In real-world PCB layouts, derating applies based on copper area and airflow; typical SMB mounting on 0.2" × 0.2" pads yields lower effective dissipation. Continuous DC power must remain well below this limit to avoid exceeding the 150 °C maximum junction temperature.
How does the HE3 suffix in P6SMB11AHE3_B/I affect its specifications?
The HE3 suffix in P6SMB11AHE3_B/I denotes RoHS-compliant construction and AEC-Q101 qualification - it does not alter electrical parameters like VBR, VWM, or VC, which remain identical to the base P6SMB11A. However, HE3 parts undergo additional reliability screening and are traceable to automotive-grade manufacturing lots, ensuring consistency for mission-critical applications where P6SMB11AHE3_B/I is deployed.
P6SMB11AHE3_B/I 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:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB11AHE3_B/I FAQ
1.How can I place an order for P6SMB11AHE3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB11AHE3_B/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 P6SMB11AHE3_B/I reliable?
The price and inventory of P6SMB11AHE3_B/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB11AHE3_B/I is usually 5 days.
3.What payment methods are accepted for P6SMB11AHE3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB11AHE3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB11AHE3_B/I?
P6SMB11AHE3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB11AHE3_B/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 P6SMB11AHE3_B/I?
For technical support, including P6SMB11AHE3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB11AHE3_B/I requirements.
6.How does Aetrix verify that P6SMB11AHE3_B/I is sourced from the original manufacturer or authorized distributors?
All P6SMB11AHE3_B/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 P6SMB11AHE3_B/I meets industry standards.
7.What is the process for return or replacement of P6SMB11AHE3_B/I?
All P6SMB11AHE3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB11AHE3_B/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 P6SMB11AHE3_B/I part is unused and in its original packaging.
Return procedure for P6SMB11AHE3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB11AHE3_B/I Tags
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