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Vishay General Semiconductor - Diodes Division SM6T200CA-M3/5B
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- Part No.:
- SM6T200CA-M3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T200CA-M3/5B.pdf
- Description:
- TVS DIODE 171VWM 274VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,020
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Product details
Overview
SM6T200CA-M3/5B from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, rated for 200 V standoff voltage (VWM), 274 V max clamping voltage (VC) at 2.2 A peak pulse current, and 600 W peak pulse power with 10/1000 μs waveform. It protects signal lines and power rails in automotive sensor units and industrial control interfaces against ESD and inductive switching transients.
For engineers reviewing the SM6T200CA-M3/5B datasheet, SM6T200CA-M3/5B pinout, SM6T200CA-M3/5B application, or SM6T200CA-M3/5B equivalent, key selection criteria include bidirectional clamping symmetry, low clamping ratio (1.37×VWM), halogen-free RoHS compliance (M3 suffix), and AEC-Q101 qualification readiness via HM3 variant.
Technical Context
This bidirectional TVS operates symmetrically in both polarities, with breakdown voltage (VBR) specified at 210 V min / 231 V max under 1 mA test current. Its clamping behavior is characterized by a 274 V maximum at 2.2 A (10/1000 μs), delivering consistent overvoltage protection without polarity dependence.
Thermal performance is defined by RθJA = 100 °C/W and RθJL = 20 °C/W, supporting operation up to +150 °C junction temperature. The device uses glass-passivated silicon junction and meets J-STD-020 MSL Level 1 with 260 °C reflow peak.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 200 V - Maximum continuous reverse operating voltage before conduction begins |
| VBR (min/max) | 210 V / 231 V at 1 mA - Ensures reliable turn-on above system operating voltage with margin |
| VC @ IPPM | 274 V at 2.2 A (10/1000 μs) - Limits transient voltage seen by protected IC to safe level |
| PPPM | 600 W - Sustains high-energy surges typical of automotive load dump or inductive kick |
| IFSM | Not applicable - Bidirectional device has no forward surge rating |
| TJ max | +150 °C - Enables use in under-hood automotive and high-temperature industrial environments |
| Package | SMB (DO-214AA) - Standard surface-mount footprint compatible with automated assembly and IPC-7351B land patterns |
Pinout & Package
SM6T200CA-M3/5B is a two-terminal bidirectional TVS diode housed in an SMB (DO-214AA) plastic package with matte tin-plated leads. No polarity marking is present on the case, as conduction occurs identically in both directions.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient current path | Either terminal serves as input/output; bidirectional clamping eliminates orientation constraints during placement |
| Case (SMB body) | Thermal and mechanical interface | Non-conductive molded compound provides UL 94 V-0 flammability rating and thermal dissipation via PCB copper pads |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns |
| 600 W peak pulse power | Withstands IEC 61000-4-5 Level 4 surge (4 kV, 2 Ω source) on 24 V systems |
| Low clamping ratio (1.37×VWM) | Minimizes voltage overshoot during transient events, reducing stress on downstream MOSFETs or ADC inputs |
| Halogen-free, RoHS-compliant (M3) | Meets environmental compliance requirements for global industrial and automotive supply chains |
| MSL Level 1, 260 °C peak reflow | Supports standard lead-free SMT processes without moisture sensitivity handling |
Applications
| Automotive Sensor Protection | Industrial CAN Bus Interface |
|---|---|
Use Scenario: Protecting LIN/CAN transceiver inputs and microcontroller GPIOs in engine control modules exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Voltage clamping element placed directly at connector entry point to shunt transients before reaching signal conditioning circuitry. Use Value: Clamps 200 V transients to ≤274 V within nanoseconds, preserving integrity of 5 V or 3.3 V logic-level receivers. | Use Scenario: Safeguarding differential CAN H/L lines in factory automation gateways subject to ESD (IEC 61000-4-2 ±8 kV contact) and burst noise. IC Role / Device Role / Timing Role: Symmetric bidirectional clamp across differential pair, maintaining common-mode rejection while limiting differential overvoltage. Use Value: Maintains CAN signal integrity by limiting differential swing to <300 V during fast transients, preventing receiver latch-up. |
| Power Supply Input Stage | Consumer Appliance Motor Drive |
Use Scenario: Input-side surge suppression for 24 V DC power supplies in building management systems with long cable runs. IC Role / Device Role / Timing Role: Primary overvoltage limiter upstream of DC-DC converters and LDOs, absorbing energy from lightning-induced surges. Use Value: Absorbs 600 W peak power per event, enabling compliance with IEC 61000-4-5 without external series impedance. | Use Scenario: Protecting gate drivers and MCU pins in smart washing machine motor inverters subjected to back-EMF spikes during brushless motor commutation. IC Role / Device Role / Timing Role: Clamp across half-bridge high-side/low-side driver supply rails to prevent overvoltage damage during shoot-through or inductive flyback. Use Value: Responds in <1 ns to limit rail voltage excursions to 274 V, avoiding gate oxide breakdown in 600 V MOSFETs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ200CA | Same VWM/VC, but 400 W PPPM; SMA package (smaller footprint, higher RθJA) | Limited to lower-energy transients; less robust for automotive load dump | Select when board space is constrained and surge energy is below 400 W |
| SMCJ200CA | Same VWM/VC, but 1500 W PPPM; SMC package (larger, lower RθJA) | Overqualified for most 200 V applications; requires larger PCB area | Select when protecting against severe ISO 7637-2 Pulse 5a (75 V, 100 ms) or repeated surges |
Compared with SMAJ200CA and SMCJ200CA, SM6T200CA-M3/5B delivers optimal balance of 600 W surge capability, SMB footprint compatibility, and halogen-free compliance-making it ideal for cost-sensitive, volume automotive and industrial designs where standardized assembly and mid-tier surge immunity are required.
Availability
SM6T200CA-M3/5B is available at Aetrix Electronics and suitable for automotive sensor units, industrial CAN bus interfaces, and 24 V power supply input stages requiring stable component supply, halogen-free compliance, and AEC-Q101 qualification pathway.
Supply support for SM6T200CA-M3/5B 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, power efficiency, and automotive-grade qualification.
The SM6T Series is designed specifically for robust transient suppression in harsh environments-targeting automotive, industrial, and telecom applications where bidirectional clamping, high surge tolerance, and standardized SMT packaging are essential.
FAQ
What is the clamping voltage of SM6T200CA-M3/5B at its rated peak pulse current?
The SM6T200CA-M3/5B has a maximum clamping voltage (VC) of 274 V at 2.2 A peak pulse current with a 10/1000 μs waveform. This value is measured under standardized test conditions and defines the upper voltage limit imposed on protected circuitry during transient events. The SM6T200CA-M3/5B maintains this clamping performance symmetrically in both directions due to its bidirectional construction.
Is SM6T200CA-M3/5B qualified to AEC-Q101?
The SM6T200CA-M3/5B itself is not AEC-Q101 qualified; it carries the M3 suffix indicating halogen-free RoHS compliance for commercial use. However, the HM3 variant (e.g., SM6T200CAHM3_B/I) is AEC-Q101 qualified. Engineers requiring automotive qualification should specify the HM3 suffix and revision code, as the SM6T200CA-M3/5B is intended for industrial and consumer applications where full AEC-Q101 testing is not mandated.
What does the "CA" suffix indicate in SM6T200CA-M3/5B?
The "CA" suffix in SM6T200CA-M3/5B denotes a bidirectional configuration, meaning the device provides symmetrical transient voltage suppression in both polarities. Unlike unidirectional variants (e.g., SM6T200A), the CA version has no cathode/anode distinction and is marked without polarity bands. This makes SM6T200CA-M3/5B suitable for AC signal lines, differential buses, or any application where voltage transients may occur with either polarity.
What is the thermal resistance of SM6T200CA-M3/5B, and how does it affect layout?
The SM6T200CA-M3/5B has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W and junction-to-lead resistance (RθJL) of 20 °C/W. These values assume mounting on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. To maintain reliability at high ambient temperatures, PCB layout must provide adequate copper area and avoid thermal bottlenecks-especially critical when operating near the +150 °C maximum junction temperature. The SM6T200CA-M3/5B benefits from direct thermal coupling to inner-layer planes via vias under pads.
Can SM6T200CA-M3/5B replace SM6T200A in an existing design?
No-SM6T200CA-M3/5B cannot directly replace SM6T200A without circuit review. While both share identical VWM, VBR, and VC ratings, SM6T200A is unidirectional (cathode-banded) and conducts only in reverse bias, whereas SM6T200CA-M3/5B is bidirectional and conducts in both directions. Substituting SM6T200CA-M3/5B into a unidirectional circuit may cause unintended conduction paths or leakage. The SM6T200CA-M3/5B is appropriate only where bidirectional clamping is explicitly required.
SM6T200CA-M3/5B 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):
- 171V
- Voltage - Breakdown (Min):
- 190V
- Voltage - Clamping (Max) @ Ipp:
- 274V
- Current - Peak Pulse (10/1000µs):
- 2.2A
- 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)
SM6T200CA-M3/5B FAQ
1.How can I place an order for SM6T200CA-M3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T200CA-M3/5B 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 SM6T200CA-M3/5B reliable?
The price and inventory of SM6T200CA-M3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM6T200CA-M3/5B is usually 5 days.
3.What payment methods are accepted for SM6T200CA-M3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T200CA-M3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T200CA-M3/5B?
SM6T200CA-M3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T200CA-M3/5B 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 SM6T200CA-M3/5B?
For technical support, including SM6T200CA-M3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T200CA-M3/5B requirements.
6.How does Aetrix verify that SM6T200CA-M3/5B is sourced from the original manufacturer or authorized distributors?
All SM6T200CA-M3/5B 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 SM6T200CA-M3/5B meets industry standards.
7.What is the process for return or replacement of SM6T200CA-M3/5B?
All SM6T200CA-M3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SM6T200CA-M3/5B, 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 SM6T200CA-M3/5B part is unused and in its original packaging.
Return procedure for SM6T200CA-M3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM6T200CA-M3/5B Tags
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