Vishay General Semiconductor - Diodes Division SM6T200AHE3_B/I
- Part No.:
- SM6T200AHE3_B/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T200AHE3_B/I.pdf
- Description:
- 600W,200V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:

- Shipping:

Inventory:4,896
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Product details
Overview
SM6T200AHE3_B/I from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, rated for 200 V standoff voltage (VWM = 171 V), 274 V clamping voltage at 2.2 A (10/1000 μs), 600 W peak pulse power, and AEC-Q101 qualified for automotive electronics protection against inductive switching transients.
For engineers reviewing the SM6T200AHE3_B/I datasheet, SM6T200AHE3_B/I pinout, SM6T200AHE3_B/I application, or SM6T200AHE3_B/I equivalent, key selection criteria include clamping performance under 10/1000 μs surge, junction temperature derating above 25 °C, unidirectional polarity with cathode band marking, and RoHS-compliant, halogen-free AEC-Q101 qualification status.
Technical Context
This TVS diode operates as a unidirectional clamping device, leveraging an avalanche breakdown mechanism to limit transient overvoltages on power or signal lines. Its 274 V clamping voltage at 2.2 A (10/1000 μs) and 353 V at 11.3 A (8/20 μs) define its protective threshold under standardized surge waveforms.
Thermal design relies on RθJA = 100 °C/W (typ.) and RθJL = 20 °C/W (typ.), with maximum junction temperature of +150 °C and derating starting at TA > 25 °C per Figure 2. It is mounted on 0.2" × 0.2" copper pads per JEDEC standard test conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 171 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 190 V / 210 V at IT = 1.0 mA - Verified breakdown range ensuring reliable turn-on margin |
| VC @ IPPM | 274 V at 2.2 A (10/1000 μs) - Clamping voltage limiting downstream circuit stress during surge events |
| PPPM | 600 W - Peak pulse power handling capability per standardized 10/1000 μs waveform |
| IFSM | 100 A - Non-repetitive forward surge current rating (10 ms half-sine, unidirectional only) |
| TJ max | +150 °C - Absolute maximum junction temperature defining thermal safe operating area |
| RθJA | 100 °C/W (typ.) - Junction-to-ambient thermal resistance used for PCB pad layout sizing |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, low-profile, matte tin-plated leads, MSL Level 1 compliant (peak reflow 260 °C), UL 94 V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient clamp output node | Connected to protected line; conducts avalanche current to anode during overvoltage |
| Anode | Reference/return path | Typically tied to ground or low-impedance return plane to complete clamping loop |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables robust protection against ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 surges in automotive ECUs |
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD per JESD47 |
| Glass passivated junction | Ensures stable breakdown characteristics and long-term leakage stability under humidity and bias stress |
| Low inductance SMB package | Minimizes voltage overshoot during fast-rising transients (<1 ns rise time), critical for MOSFET gate protection |
| RoHS-compliant & halogen-free | Meets automotive OEM material compliance requirements (e.g., GMW3172, Ford WSS-M99P9999-A1) |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 24 V supply rails in body control modules from load-dump transients up to 35 V and inductive kickback. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between battery rail and DC-DC input stage. Use Value: Limits clamped voltage to ≤274 V during 2.2 A surge, preventing damage to downstream PMICs and microcontrollers. | Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature) connected to PLC I/O modules exposed to field wiring noise. IC Role / Device Role / Timing Role: Signal-line TVS on 0–10 V or 4–20 mA interface, positioned adjacent to connector entry point. Use Value: Clamps fast transients (e.g., EFT bursts) below 353 V (8/20 μs), preserving ADC accuracy and isolator integrity. |
| Automotive Lighting Driver Protection | Telecom Power Supply Input Protection |
Use Scenario: Shielding LED driver ICs in headlamp modules from alternator ripple and relay-switching spikes. IC Role / Device Role / Timing Role: Primary overvoltage clamp on high-side switch input, cathode to VIN, anode to ground. Use Value: Withstands 100 A IFSM (10 ms), enabling survival of sustained overvoltage events without degradation. | Use Scenario: Front-end surge suppression on AC/DC adapter inputs in base station power supplies subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Secondary-stage TVS after MOV, providing precise clamping where MOV let-through exceeds IC tolerance. Use Value: Delivers 274 V clamping at 2.2 A (10/1000 μs), reducing residual voltage stress on primary-side controllers by >30% vs. generic alternatives. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ200A-E3/52 | Same VWM (171 V), lower PPPM = 400 W, SMA package (larger RθJA = 140 °C/W) | Not AEC-Q101 qualified; limited to commercial industrial use | Select when cost sensitivity outweighs automotive qualification and higher surge margin |
| 1.5SMC200A | Same VWM/VC, PPPM = 1500 W, SMC package (higher IPPM, larger footprint) | Higher power handling but incompatible with space-constrained SMB layouts | Select when system-level surge testing requires >600 W margin and board area permits SMC footprint |
Compared with SMAJ200A-E3/52 and 1.5SMC200A, SM6T200AHE3_B/I uniquely balances AEC-Q101 qualification, SMB footprint compatibility, and 600 W surge capacity-making it optimal for automotive body electronics where space, reliability, and standardized surge compliance are jointly constrained.
Availability
SM6T200AHE3_B/I is available at Aetrix Electronics and suitable for automotive electronic control units, industrial sensor interfaces, LED lighting drivers, and telecom power supply inputs requiring stable component supply with full traceability and lifecycle support.
Supply support for SM6T200AHE3_B/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, precision, and automotive-grade qualification.
The SM6T Series is designed specifically for high-reliability transient suppression in automotive and industrial environments, targeting ISO 7637-2 and IEC 61000-4-5 compliance with AEC-Q101 validation and low-inductance SMB packaging.
FAQ
What is the clamping voltage of SM6T200AHE3_B/I at 2.2 A (10/1000 μs)?
The SM6T200AHE3_B/I has a maximum clamping voltage (VC) of 274 V when subjected to a 10/1000 μs surge current of 2.2 A, as specified in the Vishay SM6T datasheet (Document #88385, Rev. 09-Jan-2024). This value defines the upper voltage limit imposed on protected circuits during standardized transient events and is measured under JEDEC-standard mounting conditions (0.2" × 0.2" copper pads).
Is SM6T200AHE3_B/I AEC-Q101 qualified?
Yes, SM6T200AHE3_B/I is AEC-Q101 qualified. The "HE3" suffix explicitly denotes RoHS-compliant and AEC-Q101 qualified construction, validated per the automotive stress test standard including HTGB, HTRB, TCT, and ESD. This qualification is confirmed in the Vishay ordering information table and mechanical data section of document 88385.
What does the "_B/I" suffix mean in SM6T200AHE3_B/I?
The "_B/I" suffix in SM6T200AHE3_B/I indicates the revision code ("B") and packaging format ("I" = 13-inch diameter plastic tape and reel, 3200 units per reel). This follows Vishay's ordering convention defined in the "ORDERING INFORMATION" section of document 88385, where "I" corresponds to bulk quantity delivery mode for automated SMT placement.
What is the standoff voltage (VWM) of SM6T200AHE3_B/I?
The standoff voltage (VWM) of SM6T200AHE3_B/I is 171 V, representing the maximum DC or continuous reverse operating voltage that can be applied without triggering avalanche conduction. This value is derived from the VWM = 0.9 × VBR min relationship (0.9 × 190 V) and is listed in the Electrical Characteristics table of the Vishay SM6T datasheet.
Does SM6T200AHE3_B/I have bidirectional capability?
No, SM6T200AHE3_B/I is a unidirectional TVS diode. Its part number lacks the "CA" suffix (e.g., SM6T200CA), which Vishay reserves exclusively for bidirectional variants. The device features a cathode band marking and is intended for DC-biased protection applications where polarity is fixed, such as 24 V automotive power rails.
SM6T200AHE3_B/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:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- 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:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SM6T200AHE3_B/I FAQ
1.How can I place an order for SM6T200AHE3_B/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T200AHE3_B/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 SM6T200AHE3_B/I reliable?
The price and inventory of SM6T200AHE3_B/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM6T200AHE3_B/I is usually 5 days.
3.What payment methods are accepted for SM6T200AHE3_B/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T200AHE3_B/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T200AHE3_B/I?
SM6T200AHE3_B/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T200AHE3_B/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 SM6T200AHE3_B/I?
For technical support, including SM6T200AHE3_B/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T200AHE3_B/I requirements.
6.How does Aetrix verify that SM6T200AHE3_B/I is sourced from the original manufacturer or authorized distributors?
All SM6T200AHE3_B/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 SM6T200AHE3_B/I meets industry standards.
7.What is the process for return or replacement of SM6T200AHE3_B/I?
All SM6T200AHE3_B/I units undergo pre-shipment inspection (PSI). If there is an issue with SM6T200AHE3_B/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 SM6T200AHE3_B/I part is unused and in its original packaging.
Return procedure for SM6T200AHE3_B/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM6T200AHE3_B/I Tags

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Toshiba Semiconductor and Storage

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Diodes Incorporated
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