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Vishay General Semiconductor - Diodes Division P6SMB68A-E3/52
- Part No.:
- P6SMB68A-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB68A-E3/52.pdf
- Description:
- TVS DIODE 58.1VWM 92VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:346
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Product details
Overview
P6SMB68A-E3/52 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 a 68 V breakdown voltage (VBR = 64.6–71.4 V at IT = 1.0 mA), 58.1 V stand-off voltage (VWM), 92.0 V maximum clamping voltage (VC) at 6.5 A peak pulse current (IPPM), and 600 W peak pulse power capability with 10/1000 μs waveform - used to protect MOSFETs, ICs, and sensor interfaces in industrial power supplies.
For engineers reviewing the P6SMB68A-E3/52 datasheet, P6SMB68A-E3/52 pinout, P6SMB68A-E3/52 application, or P6SMB68A-E3/52 equivalent, key selection criteria include unidirectional polarity, SMB package compatibility with automated SMT placement, RoHS-compliant matte tin plating, MSL Level 1 rating, and verified clamping performance under repetitive surge conditions.
Technical Context
This TVS diode operates as a voltage-clamping protection device that conducts above its reverse stand-off voltage (58.1 V), entering avalanche breakdown near 68 V to divert transient energy away from downstream circuitry. Its low incremental surge resistance and fast response time ensure effective suppression of ESD, lightning-induced surges, and inductive switching spikes.
The device uses a glass-passivated silicon junction and is rated for 150 °C maximum junction temperature, with thermal resistance of 100 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead). It meets JESD201 Class 2 whisker resistance and is qualified per J-STD-020 MSL Level 1 (peak reflow ≤ 260 °C).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 64.6 V / 71.4 V at 1.0 mA test current - defines precise avalanche onset range for reliable overvoltage triggering |
| VWM | 58.1 V - maximum continuous reverse operating voltage before leakage exceeds 1.0 μA |
| VC @ IPPM | 92.0 V at 6.5 A - clamped voltage during 10/1000 μs surge, limiting stress on protected ICs |
| PPPM | 600 W - peak pulse power handling with 0.01% duty cycle, enabling robust transient absorption |
| IPPM | 6.5 A - peak pulse current supported under standard 10/1000 μs waveform |
| TJ max. | +150 °C - maximum junction temperature, supporting operation in high-ambient industrial environments |
| Package | SMB (DO-214AA) - low-profile SMT package with 0.205" × 0.220" footprint, optimized for automated assembly |
Pinout & Package
SMB (DO-214AA) surface-mount package with cathode band marking; terminals are matte tin-plated for solderability per J-STD-002 and JESD22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal (unidirectional) | Connected to lower-potential side of protected line; enables forward-biased operation only during fault conditions |
| Cathode | Reverse-biased clamping terminal | Marked with band; connected to higher-potential rail (e.g., VCC or signal line) to clamp transients to ground or rail |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables single-device protection against IEC 61000-4-5 Level 3 surges (1 kV/42 Ω) on 24 V systems |
| Low clamping ratio (VC/VBR ≈ 1.35) | Minimizes overvoltage stress on downstream components during transient events |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking, reducing manufacturing overhead |
| Glass-passivated junction | Ensures stable leakage current (<1.0 μA at VWM) and long-term reliability under thermal cycling |
| RoHS-compliant, matte tin plating | Supports lead-free assembly and meets IPC-J-STD-002B solderability requirements |
Applications
| Industrial Power Supply Protection | Automotive Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 24 V DC input rails in PLC modules against load dump and inductive kickback. IC Role / Device Role / Timing Role: Unidirectional TVS placed between VIN and GND to clamp positive transients before they reach DC/DC converters and microcontrollers. Use Value: Limits clamped voltage to 92.0 V, well below 100 V input rating of typical industrial DC/DC controllers. |
Use Scenario: Safeguarding analog output lines (e.g., 0–10 V or 4–20 mA) from ESD and cable discharge in vehicle cabin sensors. IC Role / Device Role / Timing Role: TVS mounted directly at connector entry point to absorb sub-100 ns ESD events before reaching op-amp front-end. Use Value: Sub-1 ns response time and 92.0 V clamping prevent latch-up in precision signal conditioning ICs. |
| Telecom Line Card Surge Protection | Consumer Appliance Motor Drive Protection |
Use Scenario: Shielding Ethernet PHY power pins and bias rails from lightning-induced surges in outdoor telecom cabinets. IC Role / Device Role / Timing Role: Unidirectional TVS applied across +3.3 V and GND supply pins of Ethernet transceivers. Use Value: 600 W rating handles repeated 10/1000 μs surges per ITU-T K.21 recommendations. |
Use Scenario: Suppressing back-EMF spikes from brushed DC motors in washing machine control boards. IC Role / Device Role / Timing Role: TVS installed across motor terminals to shunt inductive energy during MOSFET turn-off. Use Value: 100 A IFSM rating withstands repetitive 8.3 ms half-sine surges without degradation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ68A-E3/52 (Vishay) | Same VBR, VWM, VC, and package; rated for 600 W but with tighter VBR tolerance (±5% vs ±10% for P6SMB68A) | Preferred where tighter voltage matching is required for precision clamping thresholds | Select SMBJ68A-E3/52 when design requires guaranteed VBR within 64.6–68.4 V range |
| 1.5SMC68A (ON Semiconductor) | Identical VBR (64.6–71.4 V), same SMB package, but rated for 1500 W peak power and higher IPPM (10.3 A) | Better suited for high-energy surge environments (e.g., outdoor AC mains interfaces) | Choose 1.5SMC68A when system-level surge testing exceeds IEC 61000-4-5 Level 4 requirements |
Compared with SMBJ68A-E3/52, P6SMB68A-E3/52 offers broader VBR tolerance and lower cost for general-purpose protection; versus 1.5SMC68A, it provides sufficient 600 W rating for board-level protection while occupying identical PCB area and simplifying layout reuse.
Availability
P6SMB68A-E3/52 is available at Aetrix Electronics and suitable for industrial power supplies, automotive sensor interfaces, telecom line cards, and consumer appliance motor drives requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for P6SMB68A-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, efficiency, and manufacturability.
The P6SMB Series targets cost-sensitive, high-volume applications requiring robust transient suppression in compact SMT packages - engineered for automated assembly, automotive-grade variants (AEC-Q101), and broad industrial environmental resilience.
FAQ
What is the breakdown voltage range of the P6SMB68A-E3/52?
The P6SMB68A-E3/52 has a breakdown voltage (VBR) range of 64.6 V to 71.4 V at a test current of 1.0 mA, as specified in the Vishay datasheet revision 09-Jan-2024. This range reflects the inherent manufacturing tolerance for unidirectional TVS diodes in the P6SMB family and ensures consistent clamping behavior across production lots. The P6SMB68A-E3/52 achieves this performance using a glass-passivated silicon junction structure.
Is the P6SMB68A-E3/52 RoHS-compliant and lead-free?
Yes, the P6SMB68A-E3/52 is RoHS-compliant and lead-free, indicated by the "E3" suffix per Vishay's ordering nomenclature. It features matte tin-plated leads and conforms to J-STD-002B solderability standards. The device also meets JESD201 Class 2 whisker resistance requirements and is rated MSL Level 1 for reflow processing - all confirmed in the official P6SMB Series datasheet (Document Number: 88370).
What is the maximum clamping voltage of the P6SMB68A-E3/52 under surge conditions?
The P6SMB68A-E3/52 exhibits a maximum clamping voltage (VC) of 92.0 V at a peak pulse current (IPPM) of 6.5 A, measured with a 10/1000 μs waveform. This value is critical for determining safe overvoltage margins for downstream ICs and ensures the P6SMB68A-E3/52 limits transient energy effectively without overstressing protected circuitry. Clamping performance is validated across the full operating temperature range.
Can the P6SMB68A-E3/52 be used in automotive applications?
The base P6SMB68A-E3/52 is commercial-grade; however, Vishay offers AEC-Q101-qualified variants under ordering codes such as P6SMB68AHE3_B/H. These automotive versions share identical electrical characteristics (VBR, VWM, VC) and SMB packaging but undergo additional qualification testing for temperature cycling, humidity, and mechanical shock. For automotive use, specify the HE3 or HM3 suffix - the P6SMB68A-E3/52 itself is not AEC-Q101 certified.
What is the thermal resistance of the P6SMB68A-E3/52?
The P6SMB68A-E3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W and a junction-to-lead thermal resistance (RθJL) of 20 °C/W, as published in the Vishay P6SMB Series datasheet. These values assume mounting on 0.2" × 0.2" copper pads per terminal and are essential for calculating junction temperature rise under continuous power dissipation (PD = 5.0 W) or repetitive surge conditions.
P6SMB68A-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):
- 58.1V
- Voltage - Breakdown (Min):
- 64.6V
- Voltage - Clamping (Max) @ Ipp:
- 92V
- Current - Peak Pulse (10/1000µs):
- 6.5A
- 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 (SMB)
P6SMB68A-E3/52 FAQ
1.How can I place an order for P6SMB68A-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB68A-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 P6SMB68A-E3/52 reliable?
The price and inventory of P6SMB68A-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 P6SMB68A-E3/52 is usually 5 days.
3.What payment methods are accepted for P6SMB68A-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB68A-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB68A-E3/52?
P6SMB68A-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB68A-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 P6SMB68A-E3/52?
For technical support, including P6SMB68A-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB68A-E3/52 requirements.
6.How does Aetrix verify that P6SMB68A-E3/52 is sourced from the original manufacturer or authorized distributors?
All P6SMB68A-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 P6SMB68A-E3/52 meets industry standards.
7.What is the process for return or replacement of P6SMB68A-E3/52?
All P6SMB68A-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB68A-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 P6SMB68A-E3/52 part is unused and in its original packaging.
Return procedure for P6SMB68A-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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