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Vishay General Semiconductor - Diodes Division P6SMB68A-M3/52
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- Part No.:
- P6SMB68A-M3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
P6SMB68A-M3/52.pdf
- Description:
- TVS DIODE 58.1VWM 92VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,504
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Product details
Overview
P6SMB68A-M3/52 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), and 92.0 V maximum clamping voltage (VC) at 6.5 A peak pulse current (IPPM), delivering 600 W peak pulse power with 10/1000 μs waveform - ideal for protecting MOSFETs and ICs in industrial power supplies.
For engineers reviewing the P6SMB68A-M3/52 datasheet, P6SMB68A-M3/52 pinout, P6SMB68A-M3/52 application, or P6SMB68A-M3/52 equivalent, key selection criteria include unidirectional polarity, halogen-free RoHS-compliant construction (M3 suffix), 150 °C max junction temperature, and compatibility with automated SMT placement on standard 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. Its glass-passivated junction ensures stable VBR tolerance (±5%) and low incremental surge resistance, enabling fast response (<1 ns) to ESD and lightning-induced transients.
The device is rated for 600 W peak pulse power under 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). It supports repetitive surge events when mounted per recommended pad layout and meets MSL Level 1 per J-STD-020 at 260 °C peak reflow.
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 clamping margin |
| 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 600 W transient, limiting stress on downstream components |
| IPPM | 6.5 A - peak pulse current capability under 10/1000 μs waveform, derated above 25 °C ambient |
| PPPM | 600 W - peak pulse power handling capacity, validated for repetitive surges at ≤0.01% duty cycle |
| TJ max | +150 °C - maximum junction temperature, supporting operation in high-temperature industrial environments |
| Package | SMB (DO-214AA) - standardized surface-mount outline with 0.220" × 0.130" footprint and matte tin-plated leads |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, unidirectional polarity with cathode band marking. Dimensions: 4.57 mm × 3.30 mm × 2.20 mm (L × W × H); terminals are matte tin-plated, solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal | Connected to lower-potential side in unidirectional configuration; carries forward surge current up to 100 A (8.3 ms half-sine) |
| Cathode | Avalanche clamping terminal | Marked with band; connected to protected line; conducts reverse avalanche current during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power | Enables robust protection against IEC 61000-4-5 Level 4 surges (4 kV/2 Ω) without degradation under repeated stress |
| Glass passivated junction | Ensures stable VBR drift < ±5% over lifetime and improved reliability vs. epoxy-passivated alternatives |
| MSL Level 1 rating | Supports single-reflow assembly at 260 °C peak without moisture-related popcorning or delamination |
| Halogen-free & RoHS-compliant (M3) | Fulfills environmental compliance requirements for industrial and automotive supply chains without compromising surge performance |
| Low clamping ratio (VC/VBR ≈ 1.37) | Minimizes let-through voltage to protect sensitive 60 V-rated MOSFETs and gate drivers in DC-DC converters |
Applications
| Industrial Power Supply Protection | Automotive Body Control Module (BCM) |
|---|---|
|
Use Scenario: Suppresses load-dump transients and relay-switching spikes on 48 V input rails of programmable logic controllers. IC Role / Device Role / Timing Role: Unidirectional TVS placed across input capacitor to clamp surges before they reach DC-DC controller ICs. Use Value: Limits peak voltage to 92.0 V, preventing damage to 100 V-rated buck controllers and maintaining system uptime. |
Use Scenario: Protects LIN bus transceivers and microcontroller I/O pins from battery reverse-connection and jump-start transients. IC Role / Device Role / Timing Role: Standoff-rated TVS on power rail feeding BCM microcontroller, activated only during >58.1 V events. Use Value: Withstands 100 A surge (8.3 ms) and maintains <1 μA leakage at 58.1 V, preserving sleep-mode current budget. |
| Telecom AC-DC Adapter Input Stage | Consumer Appliance Motor Drive Board |
|
Use Scenario: Guards primary-side rectifier output against lightning-induced surges entering via AC mains input. IC Role / Device Role / Timing Role: Fast-response clamping device placed between bridge rectifier and bulk capacitor. Use Value: Clamps 600 W transients within nanoseconds, reducing stress on electrolytic capacitor and improving MTBF by >30%. |
Use Scenario: Shields H-bridge gate drivers from inductive kickback generated by brushed DC motor commutation. IC Role / Device Role / Timing Role: Unidirectional TVS on each half-bridge leg's high-side and low-side supply rails. Use Value: 92.0 V clamping voltage prevents driver latch-up while allowing normal 60 V motor operation without false triggering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ68A-E3/52 | Same VBR (64.6–71.4 V) and VC (92.0 V), but lower PPPM = 400 W and SMA package (smaller thermal mass) | Limited to lower-energy transients; unsuitable for IEC 61000-4-5 Level 4 testing | Select when board space is constrained and surge energy is ≤400 W; verify thermal derating at elevated ambient |
| 1.5SMC68A | Identical electrical specs but in larger SMC (DO-214AB) package with RθJA = 60 °C/W (vs. 100 °C/W for SMB) | Better thermal performance under sustained surge conditions; requires larger PCB footprint | Choose for high-reliability industrial systems where long-term thermal stability outweighs size constraints |
Compared with SMAJ68A-E3/52, P6SMB68A-M3/52 delivers 50% higher surge power headroom and superior thermal margin in compact SMB form; versus 1.5SMC68A, it trades 40% smaller footprint for higher junction-to-ambient resistance - optimal for space-constrained designs with moderate surge repetition rates.
Availability
P6SMB68A-M3/52 is available at Aetrix Electronics and suitable for industrial power supplies, automotive body control modules, telecom AC-DC adapters, and consumer appliance motor drive boards requiring stable component supply and halogen-free compliance.
Supply support for P6SMB68A-M3/52 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, precision, and application-specific optimization.
The P6SMB Series targets high-energy transient suppression in space-constrained SMT designs, balancing 600 W pulse capability with low-profile SMB packaging for automotive, industrial, and telecom infrastructure applications.
FAQ
What is the maximum clamping voltage of the P6SMB68A-M3/52 under specified test conditions?
The P6SMB68A-M3/52 has a maximum clamping voltage (VC) of 92.0 V when subjected to its rated peak pulse current of 6.5 A using a 10/1000 μs waveform. This value is measured at TA = 25 °C with devices mounted on 0.2" × 0.2" copper pads per Vishay specification. The clamping performance remains stable across its full operating temperature range (−65 °C to +150 °C), making P6SMB68A-M3/52 suitable for harsh-environment deployments.
Does the P6SMB68A-M3/52 meet automotive qualification standards?
The base P6SMB68A-M3/52 is commercial-grade and not AEC-Q101 qualified; however, Vishay offers the P6SMB68AHM3_B/H variant - identical electrical specs with AEC-Q101 qualification for automotive use. The "HM3" suffix denotes halogen-free RoHS compliance, and "_B" indicates AEC-Q101 qualification for the 6.8 V to 220 V voltage range. For automotive applications, specify P6SMB68AHM3_B/H instead of P6SMB68A-M3/52.
How does the M3 suffix affect the P6SMB68A-M3/52's material composition and compliance status?
The M3 suffix on P6SMB68A-M3/52 indicates halogen-free, RoHS-compliant construction meeting JEDEC J-STD-20 and JESD201 Class 2 whisker resistance requirements. Unlike E3-suffix variants, M3 uses bromine- and chlorine-free molding compounds and matte tin-plated leads - critical for compliance in EU and Asian industrial markets. All P6SMB68A-M3/52 units are manufactured to Vishay's commercial-grade reliability standards with MSL Level 1 rating.
Can the P6SMB68A-M3/52 be used in bidirectional transient protection circuits?
No - the P6SMB68A-M3/52 is strictly unidirectional, as indicated by the "A" suffix and cathode band marking. For bidirectional protection, Vishay specifies part numbers ending in "CA", such as P6SMB68CA-M3/52, which provides symmetrical clamping in both polarities. Using P6SMB68A-M3/52 in bidirectional configurations risks forward conduction during negative transients and invalidates its specified VC and IPPM ratings.
What is the thermal resistance profile of the P6SMB68A-M3/52, and how does it impact PCB layout?
The P6SMB68A-M3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W and junction-to-lead resistance (RθJL) of 20 °C/W when mounted on minimum recommended 0.2" × 0.2" copper pads. To maintain safe junction temperatures under repetitive surges, PCB layout must adhere to Vishay's specified pad dimensions (0.086" × 0.060" min.) and avoid thermal isolation. Exceeding 150 °C junction temperature risks parametric shift and reduced surge endurance.
P6SMB68A-M3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- P6SMB, TransZorb®
- Packaging:
- Tape & Box (TB)
- 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 (SMBJ)
P6SMB68A-M3/52 FAQ
1.How can I place an order for P6SMB68A-M3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for P6SMB68A-M3/52 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-M3/52 reliable?
The price and inventory of P6SMB68A-M3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for P6SMB68A-M3/52 is usually 5 days.
3.What payment methods are accepted for P6SMB68A-M3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for P6SMB68A-M3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for P6SMB68A-M3/52?
P6SMB68A-M3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your P6SMB68A-M3/52 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-M3/52?
For technical support, including P6SMB68A-M3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your P6SMB68A-M3/52 requirements.
6.How does Aetrix verify that P6SMB68A-M3/52 is sourced from the original manufacturer or authorized distributors?
All P6SMB68A-M3/52 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-M3/52 meets industry standards.
7.What is the process for return or replacement of P6SMB68A-M3/52?
All P6SMB68A-M3/52 units undergo pre-shipment inspection (PSI). If there is an issue with P6SMB68A-M3/52, 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-M3/52 part is unused and in its original packaging.
Return procedure for P6SMB68A-M3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
P6SMB68A-M3/52 Tags
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