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Vishay General Semiconductor - Diodes Division P6SMB6.8AHE3/52
- Part No.:
- P6SMB6.8AHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB6.8AHE3/52.pdf
- Description:
- TVS DIODE 5.8VWM 10.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,293
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Product details
Overview
P6SMB6.8AHE3/52 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 6.45 V to 7.14 V breakdown voltage at 10 mA test current, 5.80 V stand-off voltage, 1000 µA max reverse leakage at VWM, 57.1 A peak pulse current (10/1000 µs), and 10.5 V max clamping voltage at IPPM - used in automotive sensor protection and industrial I/O interface surge suppression.
For engineers reviewing the P6SMB6.8AHE3/52 datasheet, P6SMB6.8AHE3/52 pinout, P6SMB6.8AHE3/52 application, or P6SMB6.8AHE3/52 equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification status, 600 W peak pulse power rating, low clamping ratio (VC/VBR ≈ 1.53), and compatibility with automated SMT assembly on 0.2" × 0.2" copper pads.
Technical Context
This TVS diode operates as a voltage-clamping device triggered by transient overvoltage events, leveraging an avalanche breakdown mechanism. Its unidirectional configuration provides forward conduction only during positive surges relative to cathode, with polarity marked by a band on the SMB package.
It delivers 600 W peak pulse power handling per 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 MSL Level 1 per J-STD-020 and supports lead-free reflow up to 260 °C peak temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 6.45–7.14 V at 10 mA - defines precise avalanche initiation threshold for reliable transient detection |
| Stand-off Voltage VWM | 5.80 V - maximum continuous reverse voltage before significant leakage; ensures no false triggering under normal operation |
| Clamping Voltage VC | 10.5 V at 57.1 A IPPM - limits downstream voltage stress during surge, enabling robust IC-level protection |
| Peak Pulse Power PPPM | 600 W (10/1000 µs) - sustains high-energy transients without failure, suitable for ISO 7637-2 Pulse 1/2a/5a compliance |
| Reverse Leakage ID | ≤1000 µA at VWM - minimizes standby power loss and avoids interference in low-current sensor circuits |
| Operating Temperature | −65 °C to +150 °C - supports under-hood automotive and industrial environments with wide thermal cycling |
| AEC-Q101 Qualified | Yes (HE3 suffix) - validated for automotive electronics per stress testing including HTRB, HTGB, and temperature cycling |
Pinout & Package
SMB (DO-214AA) surface-mount package with matte tin-plated leads, UL 94 V-0 molding compound, and cathode band marking for unidirectional polarity. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); recommended pad layout: 5.0 mm × 5.0 mm copper per terminal.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point during reverse-biased transient | Connected to protected line (e.g., CAN_H, VCC rail); accepts surge current into cathode |
| Cathode | Current exit point during clamping event | Connected to ground or lower-potential reference; establishes unidirectional conduction path |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power | Enables single-device protection against high-energy transients like load dump (ISO 16750-2) and EFT (IEC 61000-4-4) |
| Low clamping ratio (VC/VBR ≈ 1.53) | Minimizes voltage overshoot during clamping, preserving margin for 5 V logic and MCU I/O pins |
| AEC-Q101 qualified (HE3) | Validated reliability for automotive applications including engine control, ADAS sensors, and body electronics |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking, reducing manufacturing overhead |
| Glass passivated junction | Improves long-term stability and reduces parameter drift under thermal cycling and humidity exposure |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting analog output lines of pressure/temperature sensors in engine bay environments exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS clamping transient spikes on 5 V sensor supply and signal outputs to prevent latch-up or damage to ADC inputs. Use Value: Maintains signal integrity during 12 V system transients up to ±100 V, with clamping below 10.5 V to ensure sensor IC survival. |
Use Scenario: Shielding RS-485 transceiver data lines in factory automation PLCs from ESD and inductive switching noise. IC Role / Device Role / Timing Role: Fast-response voltage clamp placed across differential pair (A/B) and ground to absorb ±8 kV contact ESD per IEC 61000-4-2. Use Value: Sub-1 ns response time and 10.5 V clamping limit preserve signal eye diagram integrity and prevent receiver saturation. |
| Consumer Power Adapter Input | Telecom Line Card Surge Protection |
Use Scenario: Input-stage transient suppression on 5 V/9 V USB-C PD adapters subjected to lightning-induced surges on AC input rectified rails. IC Role / Device Role / Timing Role: Primary clamping device on DC bus prior to buck converter, absorbing repetitive 600 W pulses from MOV-triggered events. Use Value: 600 W rating and 1000 µA low leakage enable stable no-load regulation while surviving >1000 surge events. |
Use Scenario: Front-end protection of Ethernet PHY power rails (3.3 V, 1.8 V) in telecom base station line cards exposed to induced surges from nearby lightning strikes. IC Role / Device Role / Timing Role: Stand-off voltage matched to rail level (5.80 V) prevents conduction during normal operation while clamping fast-rising transients. Use Value: 150 °C max junction temperature and −65 °C min storage rating support extended field deployment in outdoor cabinets. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ6.8A-E3/52 | Same SMB package, but 400 W PPPM rating and higher VC (11.5 V); not AEC-Q101 qualified | Limited to commercial-grade consumer/industrial use; insufficient for automotive load dump requirements | Select when cost sensitivity outweighs automotive qualification and 600 W headroom needs |
| 1.5SMC6.8A | Higher-power SMC package (1500 W PPPM), larger footprint (7.11 mm × 6.22 mm), same VBR/VC specs | Used where PCB space allows and higher surge margin is required (e.g., mains-connected equipment) | Choose for legacy designs needing drop-in replacement with enhanced energy handling, not size-constrained layouts |
Compared with SMAJ6.8A-E3/52, P6SMB6.8AHE3/52 offers 50% higher surge power and automotive qualification; versus 1.5SMC6.8A, it trades 2.5× board area for tighter integration in space-limited modules like ECUs and IoT edge nodes.
Availability
P6SMB6.8AHE3/52 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial I/O protection, and telecom line card surge suppression requiring stable component supply, AEC-Q101 traceability, and RoHS-compliant sourcing.
Supply support for P6SMB6.8AHE3/52 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and automotive-grade validation.
The P6SMB Series targets high-reliability transient suppression in automotive, industrial, and telecom systems, engineered for robustness under repetitive surge stress and extended temperature operation.
FAQ
What is the clamping voltage of P6SMB6.8AHE3/52 at its rated peak pulse current?
The P6SMB6.8AHE3/52 has a maximum clamping voltage (VC) of 10.5 V at its specified peak pulse current (IPPM) of 57.1 A, measured using the standard 10/1000 µs double-exponential waveform. This value ensures downstream circuitry remains within safe operating limits during transient events, and is verified per Vishay's test conditions in Document Number 88370.
Is P6SMB6.8AHE3/52 qualified for automotive applications?
Yes, P6SMB6.8AHE3/52 is AEC-Q101 qualified, as indicated by the "HE3" suffix in its ordering code. It undergoes rigorous stress testing including high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), and temperature cycling to validate reliability for under-hood and chassis-mounted automotive electronics.
What does the "/52" suffix mean in P6SMB6.8AHE3/52?
The "/52" suffix in P6SMB6.8AHE3/52 denotes the packaging configuration: 7-inch diameter plastic tape and reel containing 750 units. This format is optimized for high-volume SMT placement and aligns with industry-standard EIA-481 specifications for automated assembly lines.
How does P6SMB6.8AHE3/52 differ from bidirectional variants like P6SMB6.8CA?
P6SMB6.8AHE3/52 is unidirectional with cathode band marking and conducts only in reverse bias during clamping, whereas P6SMB6.8CA is bidirectional and symmetrical for AC-line or differential-signal protection. The unidirectional version offers tighter VBR tolerance and lower leakage, making it preferred for DC rail protection where polarity is fixed.
What is the thermal resistance of P6SMB6.8AHE3/52, and how does it affect PCB layout?
P6SMB6.8AHE3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W and junction-to-lead (RθJL) of 20 °C/W. To maintain safe operation under repetitive surges, Vishay specifies mounting on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal - undersized pads increase thermal impedance and risk thermal runaway during sustained pulse trains.
P6SMB6.8AHE3/52 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):
- 5.8V
- Voltage - Breakdown (Min):
- 6.45V
- Voltage - Clamping (Max) @ Ipp:
- 10.5V
- Current - Peak Pulse (10/1000µs):
- 57.1A
- 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)
P6SMB6.8AHE3/52 FAQ
1.How can I place an order for P6SMB6.8AHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB6.8AHE3/52 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 P6SMB6.8AHE3/52 reliable?
The price and inventory of P6SMB6.8AHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB6.8AHE3/52 is usually 5 days.
3.What payment methods are accepted for P6SMB6.8AHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB6.8AHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB6.8AHE3/52?
P6SMB6.8AHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB6.8AHE3/52 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 P6SMB6.8AHE3/52?
For technical support, including P6SMB6.8AHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB6.8AHE3/52 requirements.
6.How does Aetrix verify that P6SMB6.8AHE3/52 is sourced from the original manufacturer or authorized distributors?
All P6SMB6.8AHE3/52 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 P6SMB6.8AHE3/52 meets industry standards.
7.What is the process for return or replacement of P6SMB6.8AHE3/52?
All P6SMB6.8AHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB6.8AHE3/52, 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 P6SMB6.8AHE3/52 part is unused and in its original packaging.
Return procedure for P6SMB6.8AHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB6.8AHE3/52 Tags
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