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Vishay General Semiconductor - Diodes Division SM6T6V8CA-M3/52
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- Part No.:
- SM6T6V8CA-M3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T6V8CA-M3/52.pdf
- Description:
- TVS DIODE 5.8VWM 10.5VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,754
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Product details
Overview
SM6T6V8CA-M3/52 from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping ESD and surge transients on signal/power lines. It features 6.8 V breakdown voltage (VBR), 10.5 V maximum clamping voltage (VC) at 57 A peak pulse current, 600 W peak pulse power (10/1000 μs), and operates from −65 °C to +150 °C. It is used in automotive sensor interface protection and industrial I/O line safeguarding.
For engineers reviewing the SM6T6V8CA-M3/52 datasheet, SM6T6V8CA-M3/52 pinout, SM6T6V8CA-M3/52 application, or SM6T6V8CA-M3/52 equivalent, key selection criteria include bidirectional clamping capability, low clamping ratio (VC/VBR ≈ 1.54), halogen-free RoHS compliance (M3 suffix), AEC-Q101 qualification readiness, and SMB footprint compatibility with automated SMT assembly.
Technical Context
The SM6T6V8CA-M3/52 implements a symmetrical avalanche junction structure enabling identical clamping behavior in both polarities. Its glass-passivated chip junction ensures stable VBR tolerance (±5% min/max) and low leakage (<1000 μA at 5.8 V stand-off), while low-inductance SMB packaging supports fast response to sub-nanosecond transients.
It is rated for 600 W peak pulse power under standardized 10/1000 μs waveform conditions, with thermal resistance of 100 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead), enabling reliable operation without heatsinking in typical PCB layouts with 5.0 mm × 5.0 mm copper pads per terminal.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VBR (min/max) | 6.45 V / 7.14 V at 10 mA test current - defines precise clamping onset threshold in both directions |
| VWM | 5.80 V - maximum continuous reverse voltage before leakage exceeds 1000 μA |
| VC @ IPPM | 10.5 V at 57 A (10/1000 μs) - actual worst-case voltage seen by protected circuit during surge |
| PPPM | 600 W - surge energy handling capacity compatible with IEC 61000-4-5 Level 4 (4 kV) |
| TJ range | −65 °C to +150 °C - supports under-hood automotive and industrial ambient environments |
| Package | SMB (DO-214AA) - industry-standard 2-pin surface-mount outline with 2.20 mm height and 5.59 mm length |
| Compliance | Halogen-free, RoHS-compliant (M3 suffix); MSL Level 1, 260 °C reflow capable |
Pinout & Package
SMB (DO-214AA) package: molded plastic case with matte tin-plated leads, polarity-unmarked for bidirectional operation, 0.220" (5.59 mm) body length, 0.155" (3.94 mm) width, and 0.086" (2.20 mm) height. Mounting requires minimum 0.086" × 0.060" (2.18 mm × 1.52 mm) copper pads per terminal.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (positive polarity) | One side of symmetrical junction; accepts surge current regardless of polarity |
| Cathode | Transient current entry (negative polarity) | Other side of symmetrical junction; functionally identical to Anode in bidirectional mode |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR and VC performance in both directions eliminates need for polarity-aware layout |
| 600 W peak pulse power | Withstands IEC 61000-4-5 4 kV surge tests on 2 Ω source impedance without degradation |
| Glass-passivated junction | Ensures long-term stability of breakdown voltage and low parametric drift over temperature and life |
| Low clamping ratio (VC/VBR) | 1.54 (10.5 V / 6.8 V typ.) minimizes stress on downstream ICs during transient events |
| AEC-Q101 qualification path | M3 suffix indicates halogen-free construction meeting automotive reliability baseline for TVS devices |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed directly at connector entry point to shunt surge energy before it reaches signal conditioning circuitry. Use Value: Limits transient voltage to ≤10.5 V, preserving integrity of 5 V or 3.3 V rail interfaces and preventing latch-up in connected microcontrollers. | Use Scenario: Safeguarding digital input modules in programmable logic controllers exposed to relay coil flyback and motor drive noise. IC Role / Device Role / Timing Role: Parallel-connected TVS across 24 V DC input terminals to clamp switching spikes up to 1 kV/μs slew rate. Use Value: Enables >100,000 surge cycles without parameter shift, reducing field failure rates in factory automation equipment. |
| Consumer USB Port ESD Protection | Telecom Line Interface Protection |
Use Scenario: Secondary-level ESD protection on USB 2.0 D+/D− lines behind primary polymer-based TVS arrays. IC Role / Device Role / Timing Role: Fast-response clamping device absorbing IEC 61000-4-2 ±8 kV contact discharge energy. Use Value: Sub-1 ns response time and <100 pF junction capacitance prevent signal integrity degradation at 480 Mbps data rates. | Use Scenario: Overvoltage protection on RS-485/RS-232 transceiver lines in base station backhaul units subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Standoff-and-clamp element placed between transformer secondary and transceiver IC to limit common-mode transients. Use Value: 600 W rating sustains multiple 6 kV/3 kA surges per IEC 61000-4-5, extending system uptime in outdoor telecom 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 |
|---|---|---|---|
| SMAJ6.8CA | Same SMB package, but lower 400 W PPPM; VC = 11.2 V at 35.7 A | Lower surge margin - suitable only for IEC 61000-4-2 ESD, not full IEC 61000-4-5 surge | Select when cost sensitivity outweighs need for 600 W robustness and board space allows parallel devices |
| 1.5KE6.8CA | Higher 1500 W PPPM, but axial DO-201 package - incompatible with SMT assembly | Requires through-hole rework or adapter; unsuitable for high-density PCBs or automated production | Choose only for legacy repair or prototyping where manual assembly is acceptable and higher surge headroom is critical |
Compared with SMAJ6.8CA and 1.5KE6.8CA, the SM6T6V8CA-M3/52 delivers optimal balance of 600 W surge capability, SMB SMT compatibility, and halogen-free compliance - making it preferred for new automotive and industrial designs requiring AEC-Q101-aligned supply chains and automated manufacturing.
Availability
SM6T6V8CA-M3/52 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, consumer USB port protection, and telecom line interface circuits requiring stable component supply, halogen-free compliance, and AEC-Q101 qualification readiness.
Supply support for SM6T6V8CA-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, MOSFETs, and protection devices with emphasis on reliability, precision, and automotive-grade qualification.
The SM6T Series is engineered specifically for robust transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where consistent clamping performance and long-term parametric stability are mandatory.
FAQ
What is the breakdown voltage tolerance of the SM6T6V8CA-M3/52?
The SM6T6V8CA-M3/52 has a specified breakdown voltage (VBR) range of 6.45 V to 7.14 V at 10 mA test current, representing a ±5% tolerance around the nominal 6.8 V rating. This tight tolerance ensures predictable clamping onset across production lots and temperature extremes, critical for protecting 5 V logic interfaces without premature conduction during normal operation. The SM6T6V8CA-M3/52 maintains this specification under JEDEC-standard test conditions and is verified per Vishay's qualification protocol.
Is the SM6T6V8CA-M3/52 suitable for automotive applications?
Yes, the SM6T6V8CA-M3/52 is halogen-free and RoHS-compliant (M3 suffix), meets MSL Level 1 per J-STD-020, and is built on an AEC-Q101-qualified platform - though final AEC-Q101 certification requires specific ordering codes (e.g., HM3 suffix). Its −65 °C to +150 °C operating range, glass-passivated junction, and 600 W surge rating align with automotive subsystem requirements including body control modules and sensor front-ends. The SM6T6V8CA-M3/52 is widely deployed in Tier-1 supplier designs for these use cases.
How does the clamping voltage of the SM6T6V8CA-M3/52 compare to its breakdown voltage?
The SM6T6V8CA-M3/52 clamps to a maximum of 10.5 V at 57 A (10/1000 μs waveform), yielding a clamping ratio (VC/VBR) of approximately 1.54 using the typical 6.8 V breakdown. This low ratio ensures minimal overvoltage stress on protected ICs - for example, limiting a 5 V rail to just 10.5 V during surge, well below typical absolute maximum ratings of 7 V to 12 V. The SM6T6V8CA-M3/52 achieves this via low dynamic impedance and optimized junction design.
What is the junction-to-ambient thermal resistance of the SM6T6V8CA-M3/52?
The SM6T6V8CA-M3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on standard 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value enables reliable continuous power dissipation up to 5.0 W at 50 °C ambient, and supports short-duration 600 W surge events without thermal runaway. The SM6T6V8CA-M3/52 also features RθJL = 20 °C/W, confirming efficient heat transfer to PCB traces and thermal vias.
Does the SM6T6V8CA-M3/52 have polarity markings on the package?
No, the SM6T6V8CA-M3/52 does not feature polarity markings because it is a bidirectional TVS diode - its symmetrical internal structure provides identical electrical performance in both directions. Unlike unidirectional variants (e.g., SM6T6V8A), which use a cathode band, the SM6T6V8CA-M3/52 has no visual polarity indicator. This simplifies placement in automated SMT lines and eliminates orientation errors during assembly. The SM6T6V8CA-M3/52 is fully characterized for bidirectional operation per Vishay Document 88385.
SM6T6V8CA-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:
- -
- Bidirectional Channels:
- 1
- 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)
SM6T6V8CA-M3/52 FAQ
1.How can I place an order for SM6T6V8CA-M3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T6V8CA-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 SM6T6V8CA-M3/52 reliable?
The price and inventory of SM6T6V8CA-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 SM6T6V8CA-M3/52 is usually 5 days.
3.What payment methods are accepted for SM6T6V8CA-M3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T6V8CA-M3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T6V8CA-M3/52?
SM6T6V8CA-M3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T6V8CA-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 SM6T6V8CA-M3/52?
For technical support, including SM6T6V8CA-M3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T6V8CA-M3/52 requirements.
6.How does Aetrix verify that SM6T6V8CA-M3/52 is sourced from the original manufacturer or authorized distributors?
All SM6T6V8CA-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 SM6T6V8CA-M3/52 meets industry standards.
7.What is the process for return or replacement of SM6T6V8CA-M3/52?
All SM6T6V8CA-M3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SM6T6V8CA-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 SM6T6V8CA-M3/52 part is unused and in its original packaging.
Return procedure for SM6T6V8CA-M3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM6T6V8CA-M3/52 Tags
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