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Vishay General Semiconductor - Diodes Division SM6T6V8A-M3/52
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- Part No.:
- SM6T6V8A-M3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T6V8A-M3/52.pdf
- Description:
- TVS DIODE 5.8VWM 10.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,763
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Product details
Overview
SM6T6V8A-M3/52 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping ESD and surge transients on power/signal lines. It features 6.45 V to 7.14 V breakdown voltage (VBR), 5.80 V stand-off voltage (VWM), 10.5 V max clamping voltage at 57 A (10/1000 μs), 600 W peak pulse power, and 1000 μA max reverse leakage at VWM. Used to protect MOSFETs, ICs, and sensor signal lines in automotive and industrial control systems.
For engineers reviewing the SM6T6V8A-M3/52 datasheet, SM6T6V8A-M3/52 pinout, SM6T6V8A-M3/52 application, or SM6T6V8A-M3/52 equivalent, key selection criteria include unidirectional polarity, 10.5 V clamping performance at 57 A, SMB package thermal resistance (RθJA = 100 °C/W), AEC-Q101 qualification eligibility (via HM3 suffix), and halogen-free RoHS compliance per M3 suffix.
Technical Context
The SM6T6V8A-M3/52 operates as a unidirectional avalanche diode with glass-passivated junction, optimized for fast response to sub-microsecond transients. Its clamping action begins at VWM = 5.80 V and fully engages at VBR = 6.45–7.14 V (10 mA test current), limiting induced surges to ≤10.5 V at 57 A (10/1000 μs waveform).
Thermally, it sustains 5.0 W continuous power dissipation at TA = 50 °C on infinite heatsink, with maximum junction temperature of 150 °C and RθJL = 20 °C/W. The SMB package supports automated placement and meets J-STD-020 MSL level 1 (260 °C peak reflow).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 6.45 V / 7.14 V - Ensures reliable avalanche conduction onset within defined tolerance at 10 mA test current |
| VWM | 5.80 V - Maximum DC or continuous reverse voltage before significant leakage; sets operating margin below breakdown |
| VC @ IPPM | 10.5 V at 57 A (10/1000 μs) - Clamping voltage under standard surge condition; defines worst-case overvoltage seen by protected circuit |
| PPPM | 600 W - Peak transient power handling capability; determines survivability against lightning or inductive switch-off events |
| IR @ VWM | 1000 μA - Reverse leakage current at stand-off voltage; impacts quiescent power loss and noise coupling in high-impedance nodes |
| Package | SMB (DO-214AA) - Surface-mount outline with 2.20 mm × 3.94 mm footprint; enables compact layout and automated assembly |
| TJ max | 150 °C - Maximum allowable junction temperature; constrains thermal design and derating above 25 °C ambient |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads, UL 94 V-0 rated, polarity indicated by cathode band on unidirectional types.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink node | Connected to protected line; conducts surge current to ground when VAK exceeds VBR |
| Anode | Reference/ground return path | Typically tied to system ground or low-impedance return; completes clamping loop during transient event |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables robust protection against IEC 61000-4-5 Level 3/4 surges without degradation |
| Glass passivated chip junction | Improves long-term reliability and stability of VBR under thermal cycling and humidity stress |
| Low inductance SMB package | Minimizes voltage overshoot during fast-rising transients (e.g., ESD >1 kV/ns) |
| Halogen-free, RoHS-compliant (M3 suffix) | Meets environmental compliance requirements for automotive and industrial OEM supply chains |
| MSL level 1 (260 °C peak) | Supports standard lead-free reflow profiles without preconditioning or baking |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: Suppresses load-dump and jump-start transients on 12 V battery-fed ECUs and body control modules. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and ground, clamping spikes up to ±35 V within nanoseconds. Use Value: Prevents latch-up or permanent damage to downstream LDOs and microcontrollers by limiting rail voltage to ≤10.5 V during 57 A surge events. | Use Scenario: Shields analog output lines of pressure/temperature sensors in PLC I/O modules from field-wiring ESD and inductive kickback. IC Role / Device Role / Timing Role: Low-capacitance TVS connected across signal and ground, activated only during overvoltage excursions beyond 5.80 V. Use Value: Maintains signal integrity below 100 kHz bandwidth while blocking >15 kV HBM ESD pulses without loading the 4–20 mA loop. |
| Consumer USB Port ESD Protection | Telecom DSL Line Surge Suppression |
Use Scenario: Integrated into USB 2.0 VBUS line of smart home hubs to meet IEC 61000-4-2 Level 4 (±15 kV air/±8 kV contact) immunity. IC Role / Device Role / Timing Role: Standoff-rated TVS with 5.80 V VWM ensures no interference during normal 4.75–5.25 V operation. Use Value: Clamps ESD-induced transients to <10.5 V within <1 ns, protecting USB transceivers without affecting enumeration timing. | Use Scenario: Deployed on DSL line cards to absorb longitudinal surges from outdoor copper pairs exposed to lightning-induced coupling. IC Role / Device Role / Timing Role: Primary protection device in series with gas discharge tube (GDT), absorbing fast-rising energy before GDT fires. Use Value: Handles initial 600 W surge peak (10/1000 μs), reducing stress on secondary protection and preserving line signal fidelity up to 2.2 MHz. |
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 600 W rating achieved at higher clamping voltage (11.5 V @ 53.3 A); VBR range 6.45–7.14 V identical | Marginally higher clamping degrades protection margin for 5 V logic rails; suitable where 11.5 V tolerance exists | Select SMAJ6.8A only if board-level validation confirms 11.5 V clamping does not violate protected IC's absolute maximum ratings |
| 1.5SMC6.8A | Larger SMC (DO-214AB) package (3.6 mm × 7.1 mm); same electrical specs but higher thermal mass and RθJA = 30 °C/W | Better power handling at elevated ambient temperatures; requires larger PCB area and incompatible footprint | Choose 1.5SMC6.8A when thermal derating at >70 °C ambient is required and layout space permits SMC footprint |
Compared with SMAJ6.8A and 1.5SMC6.8A, the SM6T6V8A-M3/52 offers optimal balance of low clamping (10.5 V), SMB footprint compatibility, and halogen-free compliance-making it preferred for space-constrained automotive and industrial PCBs requiring AEC-Q101-eligible variants.
Availability
SM6T6V8A-M3/52 is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface protection, and consumer USB port ESD suppression requiring stable component supply and halogen-free compliance.
Supply support for SM6T6V8A-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, TVS devices, and optoelectronics with emphasis on reliability and automotive-grade qualification.
The SM6T Series is engineered specifically for high-reliability transient suppression in harsh environments, targeting automotive, industrial, and telecom applications where consistent clamping performance and AEC-Q101 qualification are mandatory.
FAQ
What is the clamping voltage of SM6T6V8A-M3/52 under a standard 10/1000 μs surge?
The SM6T6V8A-M3/52 has a maximum clamping voltage (VC) of 10.5 V at 57 A under the standardized 10/1000 μs double-exponential surge waveform. This value is measured per Figure 1 in Vishay document 88385 and defines the upper voltage limit imposed on protected circuits during transient events. The SM6T6V8A-M3/52 maintains this clamping performance across its qualified operating temperature range.
Is SM6T6V8A-M3/52 suitable for automotive applications requiring AEC-Q101 qualification?
The SM6T6V8A-M3/52 itself is not AEC-Q101 qualified; however, Vishay offers AEC-Q101-qualified versions under ordering codes SM6T6V8AHM3_X (halogen-free) or SM6T6V8AHE3_X (standard RoHS). The "M3" suffix indicates halogen-free RoHS compliance but does not imply automotive qualification. For SM6T6V8A-M3/52 deployment in automotive systems, users must validate reliability per internal stress testing or select the HM3_X variant.
What is the meaning of the "-M3/52" suffix in SM6T6V8A-M3/52?
The "M3" suffix denotes halogen-free, RoHS-compliant construction per Vishay's material categorization, while "/52" specifies packaging in 7-inch diameter plastic tape and reel containing 750 units. This format is optimized for SMT pick-and-place equipment. The SM6T6V8A-M3/52 uses matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards.
How does the SMB package of SM6T6V8A-M3/52 affect its thermal performance?
The SMB (DO-214AA) package of SM6T6V8A-M3/52 provides a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W under standard JEDEC test conditions (0.2" × 0.2" copper pads). This limits continuous power dissipation to 5.0 W at TA = 50 °C. For higher ambient or sustained surge duty cycles, PCB copper area and airflow must be increased to avoid exceeding the 150 °C maximum junction temperature.
Can SM6T6V8A-M3/52 be used in bidirectional configurations?
No, SM6T6V8A-M3/52 is strictly unidirectional, as indicated by the "A" suffix and cathode band marking. Bidirectional operation requires the "CA" suffix (e.g., SM6T6V8CA). Using SM6T6V8A-M3/52 in reverse-biased AC signal paths would result in forward conduction and failure. For bidirectional protection, select SM6T6V8CA-M3/52 or equivalent CA-suffixed variants.
SM6T6V8A-M3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- SM6T, 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):
- 57A
- 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)
SM6T6V8A-M3/52 FAQ
1.How can I place an order for SM6T6V8A-M3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T6V8A-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 SM6T6V8A-M3/52 reliable?
The price and inventory of SM6T6V8A-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 SM6T6V8A-M3/52 is usually 5 days.
3.What payment methods are accepted for SM6T6V8A-M3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T6V8A-M3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T6V8A-M3/52?
SM6T6V8A-M3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T6V8A-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 SM6T6V8A-M3/52?
For technical support, including SM6T6V8A-M3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T6V8A-M3/52 requirements.
6.How does Aetrix verify that SM6T6V8A-M3/52 is sourced from the original manufacturer or authorized distributors?
All SM6T6V8A-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 SM6T6V8A-M3/52 meets industry standards.
7.What is the process for return or replacement of SM6T6V8A-M3/52?
All SM6T6V8A-M3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SM6T6V8A-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 SM6T6V8A-M3/52 part is unused and in its original packaging.
Return procedure for SM6T6V8A-M3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM6T6V8A-M3/52 Tags
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