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Vishay General Semiconductor - Diodes Division SM6T200CAHM3_A/I
- Part No.:
- SM6T200CAHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T200CAHM3_A/I.pdf
- Description:
- TVS DIODE 171VWM 274VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,132
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Product details
Overview
SM6T200CAHM3_A/I 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 clamping voltage (VC) at 2.2 A IPPM, and 600 W peak pulse power with 10/1000 μs waveform. It provides robust ESD and surge protection for automotive sensor signal lines and industrial I/O interfaces.
For engineers reviewing the SM6T200CAHM3_A/I datasheet, SM6T200CAHM3_A/I pinout, SM6T200CAHM3_A/I application, or SM6T200CAHM3_A/I equivalent, key selection criteria include bidirectional clamping symmetry, AEC-Q101 qualification, halogen-free RoHS compliance, and thermal resistance (RθJA = 100 °C/W) under standard PCB pad layout.
Technical Context
This bidirectional TVS operates symmetrically in both polarities, with breakdown voltage (VBR) of 210 V min / 231 V max measured at 1 mA IT, and clamps transients to ≤274 V at 2.2 A peak pulse current (IPPM) under 10/1000 μs waveform. Its glass-passivated junction ensures stable leakage (<1 μA at VWM) and low inductance for fast response.
Designed for surface-mount automated placement, the device meets MSL level 1 (260 °C reflow peak) and supports operation from −65 °C to +150 °C junction temperature. The SMB package enables compact board layout while maintaining 600 W surge capability without derating up to 25 °C ambient.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 200 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 210 V / 231 V at 1 mA - Ensures predictable turn-on threshold across production lot |
| VC @ IPPM | 274 V at 2.2 A (10/1000 μs) - Limits downstream voltage stress during 600 W surge events |
| PPPM | 600 W - Sustains high-energy transients per ISO 7637-2 Pulse 1/2/5a without failure |
| RθJA | 100 °C/W - Requires ≥0.2" × 0.2" copper pads per terminal for thermal management at full power |
| TJ max. | +150 °C - Enables use in under-hood automotive environments and industrial enclosures |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling and HTRB |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional - no polarity marking; symmetrical anode/cathode terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode / Cathode (bidirectional) | Either terminal serves as anode or cathode depending on transient polarity; no fixed polarity |
| Terminal 2 | Anode / Cathode (bidirectional) | Paired terminal completing symmetrical clamping path; identical electrical role to Terminal 1 |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns |
| AEC-Q101 qualification | Validates suitability for automotive powertrain, body electronics, and ADAS sensor interfaces |
| Halogen-free & RoHS-compliant (HM3) | Meets automotive OEM material restrictions and end-of-life recycling requirements |
| Low inductance SMB package | Minimizes voltage overshoot during fast-rising transients (e.g., ESD, relay bounce) |
| MSL Level 1 rating | Supports standard SMT reflow without moisture sensitivity handling or baking |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor outputs (e.g., pressure, temperature) from load dump and inductive switching spikes in vehicle ECUs. IC Role / Device Role: Bidirectional voltage clamp placed across differential or single-ended signal lines upstream of IC input pins. Use Value: Limits transient voltage to ≤274 V, preventing latch-up or gate oxide damage in 3.3 V/5 V interface ICs while maintaining signal integrity. | Use Scenario: Shielding PLC analog input modules and digital I/O cards from field-induced surges in factory automation systems. IC Role / Device Role: Primary surge suppression element mounted at connector entry point before signal conditioning circuitry. Use Value: Absorbs 600 W pulses per IEC 61000-4-5 Level 4 without degradation, enabling >100,000 surge cycles in harsh industrial environments. |
| Telecom Line Interface | Consumer Power Adapter ESD |
Use Scenario: Safeguarding Ethernet PHYs and DSL line drivers against lightning-induced surges on outdoor telecom wiring. IC Role / Device Role: Secondary protection stage following gas discharge tube (GDT), providing precise clamping after GDT crowbar action. Use Value: Tight VBR tolerance (±5 %) ensures coordinated staging with upstream GDT, minimizing let-through energy to sensitive PHY silicon. | Use Scenario: ESD protection for USB-C and barrel jack inputs in wall adapters and portable chargers exposed to human-body-model discharges. IC Role / Device Role: First-line defense against ±15 kV contact / ±30 kV air-gap ESD per IEC 61000-4-2. Use Value: Sub-100 ns response time and <1 μA leakage at 200 V enable low-power standby compliance without battery drain. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ200CA | Same VWM (200 V), higher VC (275 V), identical SMB package and 600 W rating; not AEC-Q101 qualified | Lacks automotive qualification; suitable for commercial/industrial only | Select when AEC-Q101 is not required and cost optimization is prioritized |
| 1.5KE200CA | Higher PPPM (1500 W), larger DO-201 package, slower response due to higher junction capacitance | Requires PCB real estate increase; less suitable for high-speed data lines | Choose for higher surge energy handling where board space permits and speed is secondary |
Compared with SMBJ200CA and 1.5KE200CA, SM6T200CAHM3_A/I delivers automotive-grade reliability in a compact SMB footprint with verified low-inductance performance-critical for protecting high-speed sensor interfaces where layout area and transient fidelity are constrained.
Availability
SM6T200CAHM3_A/I is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O protection, and telecom line interface designs requiring stable component supply with long-term lifecycle assurance.
Supply support for SM6T200CAHM3_A/I 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 and application-specific validation.
The SM6T Series is engineered for high-reliability transient suppression in automotive, industrial, and telecom infrastructure-designed to meet stringent surge immunity standards while supporting automated SMT manufacturing.
FAQ
What does the "CA" suffix indicate in SM6T200CAHM3_A/I?
The "CA" suffix denotes a bidirectional configuration, meaning SM6T200CAHM3_A/I clamps voltage transients equally in both polarities-ideal for protecting AC-coupled signals, differential buses, or floating nodes where polarity reversal may occur. This differs from unidirectional variants (e.g., SM6T200A) that require correct orientation during placement.
Is SM6T200CAHM3_A/I qualified for automotive applications?
Yes, SM6T200CAHM3_A/I carries the HM3 suffix, confirming it is halogen-free, RoHS-compliant, and AEC-Q101 qualified. This certification validates its performance under automotive environmental stresses including temperature cycling, high-temperature reverse bias, and mechanical shock-making it suitable for engine control units and ADAS sensor interfaces.
What is the maximum clamping voltage of SM6T200CAHM3_A/I under surge conditions?
The maximum clamping voltage (VC) of SM6T200CAHM3_A/I is 274 V when subjected to a 10/1000 μs waveform at 2.2 A peak pulse current (IPPM). This value is guaranteed across the full operating temperature range and ensures downstream ICs remain within safe voltage limits during standardized surge events like ISO 7637-2 Pulse 5a.
How does the SMB (DO-214AA) package of SM6T200CAHM3_A/I impact PCB layout?
The SMB package of SM6T200CAHM3_A/I requires minimum 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal to achieve rated thermal performance (RθJA = 100 °C/W). Its low-profile design supports dense layouts, and the absence of polarity marking simplifies automated placement-reducing assembly errors in bidirectional protection schemes.
What is the reverse leakage current specification for SM6T200CAHM3_A/I at rated standoff voltage?
At the rated standoff voltage (VWM = 200 V) and TA = 25 °C, SM6T200CAHM3_A/I exhibits a maximum reverse leakage current (ID) of 1 μA. This ultra-low leakage preserves signal integrity in high-impedance sensor circuits and minimizes standby power loss in battery-powered systems using SM6T200CAHM3_A/I for ESD protection.
SM6T200CAHM3_A/I 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:
- Obsolete
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SM6T200CAHM3_A/I FAQ
1.How can I place an order for SM6T200CAHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T200CAHM3_A/I 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 SM6T200CAHM3_A/I reliable?
The price and inventory of SM6T200CAHM3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM6T200CAHM3_A/I is usually 5 days.
3.What payment methods are accepted for SM6T200CAHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T200CAHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T200CAHM3_A/I?
SM6T200CAHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T200CAHM3_A/I 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 SM6T200CAHM3_A/I?
For technical support, including SM6T200CAHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T200CAHM3_A/I requirements.
6.How does Aetrix verify that SM6T200CAHM3_A/I is sourced from the original manufacturer or authorized distributors?
All SM6T200CAHM3_A/I 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 SM6T200CAHM3_A/I meets industry standards.
7.What is the process for return or replacement of SM6T200CAHM3_A/I?
All SM6T200CAHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SM6T200CAHM3_A/I, 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 SM6T200CAHM3_A/I part is unused and in its original packaging.
Return procedure for SM6T200CAHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM6T200CAHM3_A/I Tags
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Diodes Incorporated
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