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Vishay General Semiconductor - Diodes Division P6SMB6.8A-E3/52
- Part No.:
- P6SMB6.8A-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB6.8A-E3/52.pdf
- Description:
- TVS DIODE 5.8VWM 10.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,245
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Product details
Overview
P6SMB6.8A-E3/52 from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping fast voltage transients on power and signal lines. It features a 6.45 V to 7.14 V breakdown voltage at 10 mA, 5.80 V stand-off voltage, 1000 µA max reverse leakage at VWM, 10.5 V clamping voltage at 57.1 A peak pulse current, and 600 W peak pulse power capability with 10/1000 µs waveform - used for protecting MOSFETs, ICs, and sensor signal lines in industrial and automotive electronics.
For engineers reviewing the P6SMB6.8A-E3/52 datasheet, P6SMB6.8A-E3/52 pinout, P6SMB6.8A-E3/52 application, or P6SMB6.8A-E3/52 equivalent, key selection criteria include unidirectional polarity, SMB package thermal performance (RθJA = 100 °C/W), clamping ratio (VC/VBR ≈ 1.52), AEC-Q101 qualification eligibility via HE3 suffix variants, and compatibility with automated SMT placement on 0.2" × 0.2" copper pads.
Technical Context
This TVS diode operates as a voltage-clamping protection device that enters avalanche conduction when reverse voltage exceeds its breakdown threshold (VBR = 6.45–7.14 V). Its glass-passivated junction ensures stable surge response and low incremental surge resistance, enabling sub-nanosecond response to ESD and inductive switching transients.
The device sustains 600 W peak pulse power under 10/1000 µs waveform at TA = 25 °C, derating linearly above 25 °C per Fig. 2, with maximum junction temperature of +150 °C and thermal resistance of 100 °C/W (junction-to-ambient) on standard PCB pad layout. Polarity is marked by cathode band; anode and cathode terminals define unidirectional conduction path.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Breakdown Voltage VBR | 6.45–7.14 V at 10 mA - defines precise avalanche initiation point for reliable overvoltage triggering |
| Stand-off Voltage VWM | 5.80 V - maximum continuous reverse voltage before leakage exceeds 1000 µA, ensuring no false triggering |
| Clamping Voltage VC | 10.5 V at 57.1 A IPPM - limits downstream voltage during surge, protecting 5 V logic and analog interfaces |
| Peak Pulse Power PPPM | 600 W (10/1000 µs) - supports robust protection against IEC 61000-4-5 Level 3 surges (1 kV/2 Ω) |
| Package | SMB (DO-214AA) - standardized SMT footprint with 0.220" × 0.130" body, compatible with J-STD-020 MSL level 1 reflow |
| Operating Temperature | −65 °C to +150 °C - enables use in under-hood automotive and industrial environments |
| RoHS Compliance | E3 suffix - lead-free, RoHS-compliant matte tin-plated terminals, qualified per JESD 201 Class 2 whisker test |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile plastic case with matte tin-plated leads; meets UL 94 V-0 flammability rating and JEDEC moisture sensitivity level (MSL) 1 (peak reflow ≤ 260 °C).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Reverse-biased terminal | Connected to protected line; conducts avalanche current when line voltage exceeds VBR relative to anode |
| Anode | Reference/ground return | Typically tied to system ground or lower-potential rail; completes clamping path during transient events |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power | Enables single-device protection against high-energy transients without external series impedance |
| Glass passivated junction | Ensures stable VBR tolerance and long-term reliability under repeated surge stress |
| Low clamping ratio (VC/VBR ≈ 1.52) | Minimizes overvoltage exposure to downstream components during clamping |
| MSL level 1 rating | Supports standard Pb-free reflow profiles without baking or special handling |
| Automated placement compatibility | Standardized SMB outline and terminal geometry enable high-yield pick-and-place assembly |
Applications
| Industrial Motor Control | Automotive Sensor Interface |
|---|---|
|
Use Scenario: Protecting gate drivers and microcontroller I/O pins from inductive kickback during relay or solenoid switching in PLCs and motor drives. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and ground, clamping transients within 1 ns to limit voltage to ≤10.5 V. Use Value: Prevents latch-up or permanent damage to 5 V/3.3 V logic devices exposed to >100 V switching spikes. |
Use Scenario: Safeguarding CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) in engine control units. IC Role / Device Role / Timing Role: Standoff-rated TVS on signal line input, conducting only during overvoltage events while remaining high-impedance during normal operation. Use Value: Maintains signal integrity below 5.80 V operating range and clamps ESD (IEC 61000-4-2 ±15 kV) without affecting bus timing. |
| Consumer Power Adapter Input | Telecom Line Card Protection |
|
Use Scenario: Secondary-side DC output protection in AC/DC adapters powering USB-C PD and IoT hubs. IC Role / Device Role / Timing Role: Unidirectional clamp on +5 V or +12 V rail, absorbing surge energy from load dump or hot-plug events. Use Value: Limits transient overshoot to <11 V, preventing damage to USB controller ICs and PMICs rated for 5.5 V absolute max. |
Use Scenario: Front-end protection of Ethernet PHYs and DSL line drivers exposed to lightning-induced surges on twisted-pair lines. IC Role / Device Role / Timing Role: Primary-stage TVS on differential pair inputs, coordinated with gas discharge tubes for staged protection. Use Value: Withstands 600 W pulses per ITU-T K.20/21, reducing secondary protector stress and extending system MTBF. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ6.8A | Same SMB package, but lower 400 W PPPM rating and higher 11.5 V clamping voltage at 38.9 A | Less robust for high-energy surges; suitable only where IEC 61000-4-5 Level 2 compliance suffices | Select SMAJ6.8A only if cost sensitivity outweighs need for 600 W surge margin and tighter clamping |
| 1.5SMC6.8A | Larger SMC (DO-214AB) package, same 6.45–7.14 V VBR, but 10.5 V VC at 57.1 A and 1500 W PPPM | Requires larger PCB area and different thermal layout; better for high-reliability industrial systems | Choose 1.5SMC6.8A when board space allows and higher surge endurance (1500 W) is required for mission-critical equipment |
Compared with SMAJ6.8A, P6SMB6.8A-E3/52 delivers 50 % higher peak pulse power and lower clamping ratio, improving protection margin; versus 1.5SMC6.8A, it offers identical clamping performance in a 30 % smaller footprint, optimizing space-constrained designs without sacrificing surge capability.
Availability
P6SMB6.8A-E3/52 is available at Aetrix Electronics and suitable for industrial motor control, automotive sensor interface, consumer power adapter input, and telecom line card protection requiring stable component supply, RoHS-compliant sourcing, and consistent tape-and-reel delivery.
Supply support for P6SMB6.8A-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, TVS devices, and optoelectronics with emphasis on reliability, precision, and automotive-grade qualification.
The P6SMB Series targets high-energy transient suppression in space-constrained SMT applications, balancing 600 W surge capability, low-profile SMB packaging, and AEC-Q101 qualification readiness for automotive and industrial end equipment.
FAQ
What is the breakdown voltage tolerance of P6SMB6.8A-E3/52?
The P6SMB6.8A-E3/52 has a specified breakdown voltage (VBR) range of 6.45 V to 7.14 V at 10 mA test current, representing ±5 % tolerance around the nominal 6.8 V rating. This tight VBR window ensures predictable clamping onset across production lots and supports accurate system-level overvoltage margining in designs using P6SMB6.8A-E3/52.
Is P6SMB6.8A-E3/52 suitable for automotive applications?
P6SMB6.8A-E3/52 itself is commercial-grade (E3 suffix), but Vishay offers AEC-Q101-qualified variants under HE3 and HM3 suffixes (e.g., P6SMB6.8AHE3_B). For automotive use, P6SMB6.8A-E3/52 must be replaced with the HE3 variant; the E3 version lacks the required stress testing and traceability documentation mandated for automotive ECUs and ADAS modules.
What is the maximum clamping voltage of P6SMB6.8A-E3/52 under surge conditions?
The maximum clamping voltage (VC) of P6SMB6.8A-E3/52 is 10.5 V at 57.1 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is guaranteed across temperature and lifetime, and defines the upper voltage limit imposed on protected circuitry during worst-case transient events involving P6SMB6.8A-E3/52.
How does the thermal resistance of P6SMB6.8A-E3/52 affect PCB layout?
P6SMB6.8A-E3/52 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. To maintain safe junction temperatures below 150 °C during repetitive surges, designers must adhere to this pad layout - reducing pad size increases RθJA and risks thermal runaway during sustained transient activity involving P6SMB6.8A-E3/52.
Can P6SMB6.8A-E3/52 be used in bidirectional configurations?
No - P6SMB6.8A-E3/52 is strictly unidirectional, indicated by the "A" suffix and cathode band marking. Bidirectional operation requires the "CA" suffix (e.g., P6SMB6.8CA). Using P6SMB6.8A-E3/52 in reverse-biased signal paths will result in forward conduction and failure; always verify polarity alignment in schematic and layout for P6SMB6.8A-E3/52.
P6SMB6.8A-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):
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
P6SMB6.8A-E3/52 FAQ
1.How can I place an order for P6SMB6.8A-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB6.8A-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 P6SMB6.8A-E3/52 reliable?
The price and inventory of P6SMB6.8A-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 P6SMB6.8A-E3/52 is usually 5 days.
3.What payment methods are accepted for P6SMB6.8A-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB6.8A-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB6.8A-E3/52?
P6SMB6.8A-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB6.8A-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 P6SMB6.8A-E3/52?
For technical support, including P6SMB6.8A-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB6.8A-E3/52 requirements.
6.How does Aetrix verify that P6SMB6.8A-E3/52 is sourced from the original manufacturer or authorized distributors?
All P6SMB6.8A-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 P6SMB6.8A-E3/52 meets industry standards.
7.What is the process for return or replacement of P6SMB6.8A-E3/52?
All P6SMB6.8A-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB6.8A-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 P6SMB6.8A-E3/52 part is unused and in its original packaging.
Return procedure for P6SMB6.8A-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB6.8A-E3/52 Tags
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