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Vishay General Semiconductor - Diodes Division SM6T200CAHM3/I
- Part No.:
- SM6T200CAHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T200CAHM3/I.pdf
- Description:
- TVS DIODE 171VWM 274VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,522
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Product details
Overview
SM6T200CAHM3/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/I datasheet, SM6T200CAHM3/I pinout, SM6T200CAHM3/I application, or SM6T200CAHM3/I equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, halogen-free RoHS compliance, low inductance, and MSL Level 1 moisture sensitivity rating.
Technical Context
This bidirectional TVS diode 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 (10/1000 μs). Its glass-passivated junction ensures stable leakage performance and long-term reliability under repetitive surge stress.
Designed for surface-mount automated assembly, the device features matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, and meets JESD 201 Class 2 whisker resistance. Thermal resistance is RθJA = 100 °C/W on standard 0.2" × 0.2" copper pads.
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 - guaranteed breakdown threshold in either polarity |
| VC @ IPPM | 274 V at 2.2 A (10/1000 μs) - peak clamped voltage during worst-case surge event |
| PPPM | 600 W - surge energy handling capacity per IEC 61000-4-5 waveform |
| TJ max | +150 °C - maximum junction temperature enabling operation in under-hood automotive environments |
| Package | SMB (DO-214AA) - industry-standard 2-pin SMD outline with 0.220" body length and 0.060" lead pitch |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking. Cathode/anode terminals are functionally symmetrical; both leads serve as interchangeable surge current paths.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Surge current entry (positive half-cycle) | Accepts transient current during positive voltage excursions; electrically identical to cathode in bidirectional mode |
| Cathode | Surge current entry (negative half-cycle) | Accepts transient current during negative voltage excursions; electrically identical to anode in bidirectional mode |
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 surges (4 kV line-earth, 2 kV line-line) without degradation |
| AEC-Q101 qualification | Validated for automotive applications including engine control units, ADAS sensors, and body electronics |
| Halogen-free & RoHS-compliant | Meets global environmental regulations and supports lead-free reflow soldering up to 260 °C peak |
| Low inductance layout | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 pulse 1/2a/5a) |
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 transients in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed across differential or single-ended signal lines upstream of interface ICs. Use Value: Limits transient voltage to ≤274 V, preventing latch-up or gate oxide damage in downstream ASICs and microcontrollers. | Use Scenario: Safeguarding PLC analog input modules and digital fieldbus nodes against EFT bursts and lightning-induced surges on 24 V DC supply and signal lines. IC Role / Device Role / Timing Role: Primary front-end surge suppression element mounted at connector entry point. Use Value: Absorbs 600 W pulses without failure, maintaining system uptime and reducing need for redundant protection stages. |
| Telecom Line Interface | Consumer Power Adapter Input |
Use Scenario: Shielding Ethernet PHYs and PoE controllers from induced surges on unshielded twisted-pair cabling in enterprise switches and IP cameras. IC Role / Device Role / Timing Role: Secondary-level TVS placed after common-mode chokes but before isolation transformers or PHY ICs. Use Value: Clamps common-mode transients to safe levels while preserving signal integrity due to low capacitance and symmetrical response. | Use Scenario: Input-stage overvoltage protection in wall-mounted AC/DC adapters for smart home devices subjected to mains-borne surges. IC Role / Device Role / Timing Role: Standoff-rated suppressor across bulk capacitor input to limit peak rail voltage during line spikes. Use Value: Prevents overvoltage stress on primary-side MOSFETs and controller ICs, extending product lifetime in high-surge environments. |
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 (200 V), lower PPPM (400 W), SMA package (higher RθJA = 150 °C/W) | Limited to lower-energy surges; less suitable for automotive under-hood thermal environments | Select when cost sensitivity outweighs peak power margin and AEC-Q101 is not required |
| SMCJ200CA | Same VWM (200 V), higher PPPM (1500 W), larger SMC package (RθJA = 50 °C/W) | Overqualified for space-constrained PCBs; requires more board area and higher mounting pad thermal mass | Select when system-level surge testing exceeds IEC 61000-4-5 Level 4 or when extended thermal derating is needed |
Compared with SMAJ200CA and SMCJ200CA, the SM6T200CAHM3/I delivers optimal balance of 600 W surge capability, AEC-Q101 qualification, SMB footprint, and halogen-free compliance-making it ideal for automotive and industrial designs where reliability, size, and regulatory alignment are jointly critical.
Availability
SM6T200CAHM3/I is available at Aetrix Electronics and suitable for automotive sensor systems, industrial programmable logic controllers, telecom infrastructure equipment, and consumer power adapter designs requiring stable component supply and long-term manufacturability.
Supply support for SM6T200CAHM3/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, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The SM6T Series is designed specifically for high-reliability transient suppression in automotive, industrial, and telecom applications-emphasizing AEC-Q101 qualification, low-inductance packaging, and precise clamping consistency across temperature.
FAQ
What does the "CA" suffix indicate in SM6T200CAHM3/I?
The "CA" suffix in SM6T200CAHM3/I denotes a bidirectional configuration, meaning the device clamps voltage transients equally in both polarities. Unlike unidirectional variants (e.g., SM6T200A), it has no cathode marking and is used where AC signals, floating references, or polarity-agnostic protection are required-such as in differential data lines or transformer-coupled circuits. The SM6T200CAHM3/I maintains identical electrical specs in both directions, including VBR, VC, and PPPM.
Is SM6T200CAHM3/I qualified for automotive use?
Yes, SM6T200CAHM3/I is AEC-Q101 qualified, as confirmed by its HM3 suffix (halogen-free, RoHS-compliant, and AEC-Q101 qualified). It undergoes rigorous stress testing-including temperature cycling, high-temperature reverse bias (HTRB), and ESD-to ensure reliability in automotive environments such as engine compartments and ADAS sensor modules. This qualification makes SM6T200CAHM3/I suitable for safety-critical and mission-critical vehicle subsystems.
What is the clamping voltage of SM6T200CAHM3/I under standard test conditions?
The clamping voltage (VC) of SM6T200CAHM3/I is 274 V when subjected to a 10/1000 μs surge waveform at 2.2 A peak pulse current (IPPM), per the Vishay SM6T datasheet. This value represents the maximum voltage seen across the device during a standardized transient event and is critical for ensuring downstream ICs remain within their absolute maximum ratings. VC remains consistent across both polarities due to the bidirectional design of SM6T200CAHM3/I.
How does the SMB package of SM6T200CAHM3/I compare to SMA or SMC alternatives?
The SMB (DO-214AA) package of SM6T200CAHM3/I offers a balanced trade-off: smaller than SMC (DO-214AB) but higher power handling than SMA (DO-214AC). With RθJA = 100 °C/W on 0.2" × 0.2" copper pads, it supports 600 W PPPM while fitting dense layouts. SMA packages like SMAJ200CA have higher thermal resistance (150 °C/W), limiting surge duty cycle; SMC packages like SMCJ200CA offer lower RθJA (50 °C/W) but require ~2.5× more board area than SM6T200CAHM3/I.
Does SM6T200CAHM3/I require special PCB layout considerations?
Yes, effective transient suppression with SM6T200CAHM3/I depends on low-inductance PCB layout: short, wide traces to minimize series inductance; direct connection to ground/power planes; and placement as close as possible to the protected port or connector. The recommended mounting pad layout is 0.086" × 0.060" minimum per terminal, with 0.2" × 0.2" copper areas for thermal dissipation. Avoid vias or narrow necks between SM6T200CAHM3/I and reference planes to preserve clamping speed and effectiveness.
SM6T200CAHM3/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:
- Discontinued at Digi-Key
- 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/I FAQ
1.How can I place an order for SM6T200CAHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T200CAHM3/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/I reliable?
The price and inventory of SM6T200CAHM3/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/I is usually 5 days.
3.What payment methods are accepted for SM6T200CAHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T200CAHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T200CAHM3/I?
SM6T200CAHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T200CAHM3/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/I?
For technical support, including SM6T200CAHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T200CAHM3/I requirements.
6.How does Aetrix verify that SM6T200CAHM3/I is sourced from the original manufacturer or authorized distributors?
All SM6T200CAHM3/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/I meets industry standards.
7.What is the process for return or replacement of SM6T200CAHM3/I?
All SM6T200CAHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with SM6T200CAHM3/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/I part is unused and in its original packaging.
Return procedure for SM6T200CAHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM6T200CAHM3/I Tags
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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