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Vishay General Semiconductor - Diodes Division SM6T200CA-E3/52
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- Part No.:
- SM6T200CA-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T200CA-E3/52.pdf
- Description:
- TVS DIODE 171VWM 274VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,265
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Product details
Overview
SM6T200CA-E3/52 from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on signal and power lines. It features a 171 V stand-off voltage (VWM), 209–231 V breakdown voltage (VBR) at 1 mA, 328 V maximum clamping voltage (VC) at 2.0 A (10/1000 μs), 600 W peak pulse power rating, and operates from –65 °C to +150 °C junction temperature - used in automotive sensor protection and industrial I/O interface surge suppression.
For engineers reviewing the SM6T200CA-E3/52 datasheet, SM6T200CA-E3/52 pinout, SM6T200CA-E3/52 application, or SM6T200CA-E3/52 equivalent, key selection criteria include bidirectional clamping capability, SMB package compatibility with automated SMT placement, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), and compliance with IEC 61000-4-2/4-4/4-5 surge immunity standards.
Technical Context
The SM6T200CA-E3/52 employs a glass-passivated silicon junction optimized for low-inductance transient response and stable clamping under repetitive 10/1000 μs surge waveforms. Its bidirectional architecture enables symmetrical voltage limiting without polarity dependency, supporting both positive and negative transient events on the same line.
It delivers 600 W peak pulse power dissipation with derating above 25 °C ambient, supported by a thermal resistance of 100 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead). The device meets MSL Level 1 per J-STD-020 and is rated for 260 °C lead-free reflow peak temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 171 V - Maximum continuous reverse voltage before significant leakage; defines operating margin below clamping threshold |
| VBR (Breakdown Voltage) | 209–231 V at 1 mA - Confirmed bidirectional breakdown range; ensures reliable triggering during overvoltage events |
| VC (Clamping Voltage) | 328 V at 2.0 A (10/1000 μs) - Peak voltage seen by protected circuit during worst-case surge; determines downstream component stress |
| PPPM (Peak Pulse Power) | 600 W - Sustained energy absorption capacity for standardized 10/1000 μs waveform; critical for IEC 61000-4-5 compliance |
| TJ max. | +150 °C - Maximum allowable junction temperature; enables operation in under-hood automotive and high-ambient industrial environments |
| RθJA | 100 °C/W - Thermal resistance to ambient on standard 0.2" × 0.2" copper pads; informs PCB thermal layout requirements |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102; meets UL 94 V-0 flammability rating. Bidirectional construction means no polarity marking - terminals are functionally symmetric.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional terminal pair | Either terminal serves as anode or cathode depending on transient polarity; no DC bias dependency |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables robust protection against IEC 61000-4-5 Level 4 surges (4 kV line-earth) without degradation |
| Low inductance SMB package | Minimizes voltage overshoot during fast-rising transients (<1 ns rise time), preserving clamping fidelity |
| AEC-Q101 qualified variant available | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC specification |
| Glass passivated junction | Ensures long-term stability of VBR and leakage current across humidity, temperature, and lifetime stress conditions |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting CAN/LIN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses in vehicle ECUs. IC Role / Device Role: Bidirectional TVS clamp placed between signal line and ground, absorbing ±100 V transients without forward conduction. Use Value: Maintains signal integrity during 12 V/24 V system transients while enabling use of cost-sensitive 3.3 V/5 V interface ICs with limited surge tolerance. |
Use Scenario: Shielding RS-485/RS-232 data lines and 24 V PLC digital inputs from EFT bursts and lightning-induced surges in factory automation cabinets. IC Role / Device Role: Primary front-end transient suppressor mounted directly at connector entry point, shunting >10 A surge current away from isolation barriers and level shifters. Use Value: Eliminates need for secondary protection stages, reducing BOM count and PCB area while meeting IEC 61000-4-4 (4 kV) and -4-5 (2 kV) requirements. |
| Telecom Line Card Protection | Consumer Power Adapter Input |
Use Scenario: Safeguarding Ethernet PHYs and PoE controllers on telecom line cards exposed to induced surges from nearby AC mains or antenna coupling. IC Role / Device Role: Secondary-level TVS on differential pairs (e.g., MDI-X), coordinated with gas discharge tubes for staged surge handling. Use Value: Limits clamped voltage to <350 V, preventing damage to 100BASE-TX transformers and magnetics rated for 500 V isolation. |
Use Scenario: Clamping common-mode transients on AC input rectifier outputs in Class II wall adapters and USB-C PD chargers. IC Role / Device Role: Bidirectional suppressor across bulk capacitor terminals, clamping switching noise and external surges before they reach primary-side controllers. Use Value: Reduces conducted EMI and prevents false triggering of overvoltage protection in PWM controllers like UC384x or VIPer series. |
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 SMB package, identical VWM/VBR/VC specs, but rated for 600 W with tighter VC tolerance (±5 % vs. ±10 %); higher production volume | Preferred where tighter clamping consistency is required across temperature and lot variation | Select SMBJ200CA for high-volume industrial designs requiring extended qualification history and broader distributor stock |
| P6SMB200CA | Same electrical specs and SMB package, but legacy Vishay part number; RoHS-compliant with E3 suffix; identical thermal performance | No functional difference; used interchangeably in legacy BOMs and redesigns where part numbering continuity matters | Choose P6SMB200CA when maintaining backward compatibility with existing schematics or procurement systems referencing older Vishay nomenclature |
Compared with SM6T200CA-E3/52, SMBJ200CA offers tighter clamping voltage control for precision surge margining, while P6SMB200CA provides identical performance with legacy documentation alignment - both require no PCB changes and support the same automated placement process.
Availability
SM6T200CA-E3/52 is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, telecom line cards, and consumer power adapter designs requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SM6T200CA-E3/52 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, MOSFETs, optoelectronics, and passive components with emphasis on reliability, efficiency, and application-specific optimization.
The SM6T Series was developed to deliver high-power, low-inductance transient suppression in compact surface-mount packages for automotive, industrial, and telecom applications demanding AEC-Q101 qualification and IEC-compliant surge robustness.
FAQ
What is the polarity configuration of SM6T200CA-E3/52?
The SM6T200CA-E3/52 is a bidirectional TVS diode, meaning it has no polarity marking and functions identically in both directions. Unlike unidirectional variants (e.g., SM6T200A), it suppresses positive and negative transients across the same two terminals without requiring orientation during placement. This symmetry simplifies layout and eliminates risk of reverse installation in SM6T200CA-E3/52-based designs.
Does SM6T200CA-E3/52 meet AEC-Q101 qualification?
The base SM6T200CA-E3/52 is RoHS-compliant commercial-grade; however, the AEC-Q101 qualified version uses the HE3 suffix (e.g., SM6T200CAHE3_B). That variant undergoes full stress testing per AEC-Q101 including HTGB, TCT, and ESD, and is designated for automotive applications. SM6T200CA-E3/52 itself is not AEC-Q101 certified unless ordered with HE3 or HM3 suffixes.
What is the maximum clamping voltage of SM6T200CA-E3/52 under a 10/1000 μs surge?
The SM6T200CA-E3/52 has a maximum clamping voltage (VC) of 328 V at 2.0 A for a 10/1000 μs waveform, as specified in the Vishay datasheet (Document Number: 88385, Rev. 09-Jan-2024). This value represents the peak voltage measured across the device during standardized surge testing and defines the upper voltage limit imposed on protected circuitry during transient events.
Can SM6T200CA-E3/52 be used in place of SM6T200A?
No - SM6T200CA-E3/52 is bidirectional, while SM6T200A is unidirectional and includes a cathode band marking. Substituting them requires verifying circuit topology: SM6T200A conducts only in reverse bias and blocks forward current, whereas SM6T200CA-E3/52 clamps in both directions. Using SM6T200CA-E3/52 in a unidirectional design may cause unintended conduction or altered clamping behavior.
What is the thermal resistance of SM6T200CA-E3/52, and how does it affect PCB layout?
The SM6T200CA-E3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. To maintain safe junction temperatures under sustained power dissipation, PCB layout must provide adequate copper area and avoid thermal bottlenecks - insufficient copper increases RθJA and risks exceeding the +150 °C TJ max. limit during repeated surges.
SM6T200CA-E3/52 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):
- 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-E3/52 FAQ
1.How can I place an order for SM6T200CA-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T200CA-E3/52 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 SM6T200CA-E3/52 reliable?
The price and inventory of SM6T200CA-E3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM6T200CA-E3/52 is usually 5 days.
3.What payment methods are accepted for SM6T200CA-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T200CA-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T200CA-E3/52?
SM6T200CA-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T200CA-E3/52 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 SM6T200CA-E3/52?
For technical support, including SM6T200CA-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T200CA-E3/52 requirements.
6.How does Aetrix verify that SM6T200CA-E3/52 is sourced from the original manufacturer or authorized distributors?
All SM6T200CA-E3/52 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 SM6T200CA-E3/52 meets industry standards.
7.What is the process for return or replacement of SM6T200CA-E3/52?
All SM6T200CA-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SM6T200CA-E3/52, 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 SM6T200CA-E3/52 part is unused and in its original packaging.
Return procedure for SM6T200CA-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM6T200CA-E3/52 Tags
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