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Vishay General Semiconductor - Diodes Division SM6T200AHM3/I
- Part No.:
- SM6T200AHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T200AHM3/I.pdf
- Description:
- TVS DIODE 171VWM 274VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:8,393
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Product details
Overview
SM6T200AHM3/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) in SMB (DO-214AA) package, rated for 200 V standoff voltage (VWM = 171 V), 210 V minimum breakdown (VBR), 274 V maximum clamping voltage (VC) at 2.2 A IPPM, and 600 W peak pulse power with 10/1000 μs waveform. It protects MOSFETs and ICs in automotive power supplies against inductive switching transients.
For engineers reviewing the SM6T200AHM3/I datasheet, SM6T200AHM3/I pinout, SM6T200AHM3/I application, or SM6T200AHM3/I equivalent, key selection criteria include clamping voltage margin vs. protected device VDS(max), thermal resistance (RθJA = 100 °C/W), AEC-Q101 qualification status, and halogen-free RoHS compliance per ordering suffix HM3.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-band polarity marking, designed to shunt transient energy away from sensitive downstream circuitry during overvoltage events. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (ID ≤ 1 μA at VWM).
The device delivers 600 W peak pulse power handling under standardized 10/1000 μs waveform conditions when mounted on 5.0 mm × 5.0 mm copper pads, with thermal resistance of 100 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead), enabling reliable operation up to TJ = +150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 171 V - Maximum continuous reverse voltage before significant conduction begins; sets upper limit for normal operating bias. |
| VBR (Breakdown Voltage) | 190–210 V at IT = 1 mA - Confirmed avalanche initiation range; ensures predictable turn-on during transients. |
| VC (Clamping Voltage) | 274 V at IPPM = 2.2 A (10/1000 μs) - Peak voltage seen by protected circuit during worst-case surge; defines protection margin. |
| PPPM (Peak Pulse Power) | 600 W - Sustained transient energy absorption capability without failure; validated per Fig. 1 derating curve. |
| RθJA | 100 °C/W - Junction-to-ambient thermal resistance under standard PCB mounting; determines max ambient temperature for safe operation. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD; enabled by HM3 suffix. |
| Package | SMB (DO-214AA) - Low-profile SMT outline with 5.59 mm × 4.06 mm footprint; compatible with automated pick-and-place. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, unidirectional configuration with cathode band marking. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); matte tin-plated leads, J-STD-002 solderable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink node | Connected to protected circuit's high-side rail; conducts surge current to ground during overvoltage event. |
| Anode | Reference/return node | Typically tied to system ground; completes clamping path; must maintain low-impedance return path for effective suppression. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables robust protection against ISO 7637-2 Pulse 1/2a/5a transients in 12 V automotive systems without derating. |
| AEC-Q101 qualified (HM3 suffix) | Validates reliability for under-hood applications including engine control units and body electronics modules. |
| Halogen-free & RoHS-compliant | Meets IEC 61249-2-21 and JEDEC J-STD-609A Class 1 requirements for green manufacturing and end-of-life processing. |
| Low clamping ratio (VC/VBR ≈ 1.32) | Minimizes overvoltage stress on protected MOSFETs or gate drivers while maintaining fast response time. |
| MSL Level 1 (260 °C peak reflow) | Supports single-pass lead-free reflow assembly without moisture-related popcorn failure risk. |
Applications
| Automotive Power Supply Protection | Industrial Motor Drive Gate Protection |
|---|---|
|
Use Scenario: Suppresses load-dump transients (ISO 16750-2) on 12 V battery rails feeding ECUs and ADAS sensors. IC Role / Device Role / Timing Role: Unidirectional TVS placed between battery input and DC-DC converter input stage. Use Value: Clamps 274 V peak at 2.2 A, staying below 300 V absolute maximum rating of typical buck controller ICs. |
Use Scenario: Shields IGBT/MOSFET gate drivers from Miller-induced voltage spikes during high-di/dt switching. IC Role / Device Role / Timing Role: Mounted across driver output and ground to clamp gate-source overvoltage. Use Value: Sub-20 ns response time limits gate oxide stress; low capacitance avoids signal distortion in 100 kHz+ PWM paths. |
| Telecom DC Power Input Protection | Consumer Appliance Main Board Surge Protection |
|
Use Scenario: Guards PoE-powered equipment inputs against lightning-induced surges on 48 V DC lines. IC Role / Device Role / Timing Role: First-line defense upstream of DC-DC converters and PMICs in base stations. Use Value: 600 W rating handles 10/1000 μs surges per IEC 61000-4-5 Level 4 (4 kV line-earth); SMB footprint saves board space. |
Use Scenario: Protects microcontroller I/O and relay drive circuits in washing machines and HVAC controllers. IC Role / Device Role / Timing Role: Placed across AC relay coil or motor winding outputs to suppress inductive kickback. Use Value: 100 A IFSM withstands repetitive 10 ms half-sine surges from 240 VAC coils; AEC-Q101 grade ensures field longevity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ200A-E3/5B | Same VWM (171 V), higher VC (288 V), non-AEC-Q101, RoHS-compliant only (no halogen-free claim) | Lacks automotive qualification; suitable for industrial/commercial use where AEC-Q101 not mandated | Select SMAJ200A-E3/5B if cost sensitivity outweighs automotive reliability requirements and halogen-free is optional. |
| 1.5SMC200A | Same VWM/VBR/VC specs, but in larger SMC (DO-214AB) package; RθJA = 50 °C/W; no AEC-Q101 option | Requires larger PCB area; better thermal performance allows higher ambient operation but incompatible with tight SMB layouts | Choose 1.5SMC200A only when thermal headroom is critical and board space permits SMC footprint. |
Compared with SM6T200AHM3/I, SMAJ200A-E3/5B offers identical electrical protection but lacks automotive qualification and halogen-free compliance, while 1.5SMC200A trades compactness for superior thermal dissipation-making SM6T200AHM3/I optimal for space-constrained AEC-Q101 designs.
Availability
SM6T200AHM3/I is available at Aetrix Electronics and suitable for automotive power supply protection, industrial motor drive gate protection, and telecom DC input surge suppression requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for SM6T200AHM3/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, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SM6T Series was developed for high-reliability transient suppression in automotive and industrial environments, combining AEC-Q101 qualification, halogen-free materials, and optimized SMB packaging for automated manufacturing.
FAQ
What is the clamping voltage of SM6T200AHM3/I at its rated peak pulse current?
The SM6T200AHM3/I has a maximum clamping voltage (VC) of 274 V when subjected to a 10/1000 μs waveform peak pulse current (IPPM) of 2.2 A. This value is measured under standard test conditions (TA = 25 °C, mounted on 5.0 mm × 5.0 mm copper pads) and defines the highest voltage the protected circuit will experience during a specified transient event. The SM6T200AHM3/I maintains this clamping performance across its operational temperature range.
Is SM6T200AHM3/I qualified for automotive applications?
Yes, SM6T200AHM3/I is AEC-Q101 qualified, as confirmed by the HM3 suffix in its part number. This qualification covers stress tests including temperature cycling, high-temperature reverse bias (HTRB), and electrostatic discharge (ESD), validating its suitability for under-hood and chassis-mounted automotive electronics. The SM6T200AHM3/I meets the reliability requirements for engine control units, body control modules, and ADAS power supplies.
What does the "HM3" suffix indicate in SM6T200AHM3/I?
The "HM3" suffix in SM6T200AHM3/I denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. Specifically, "H" indicates AEC-Q101 qualification, "M" signifies halogen-free molding compound, and "3" confirms RoHS compliance per EU Directive 2011/65/EU. This suffix replaces older "HE3" (AEC-Q101 + RoHS) and adds environmental compliance required by Tier 1 automotive suppliers.
How does SM6T200AHM3/I compare to SM6T200A in terms of packaging and compliance?
SM6T200AHM3/I uses the same SMB (DO-214AA) package as SM6T200A but adds halogen-free material content and AEC-Q101 qualification via the HM3 suffix. While SM6T200A is commercial-grade (M3 or E3), SM6T200AHM3/I meets automotive reliability standards and environmental requirements. Both share identical electrical parameters (VWM = 171 V, VBR = 190–210 V, VC = 274 V), but only SM6T200AHM3/I is approved for automotive production use.
What is the maximum operating junction temperature for SM6T200AHM3/I?
The SM6T200AHM3/I has a maximum operating junction temperature (TJ max.) of +150 °C, as specified in the Vishay SM6T Series datasheet (Document Number: 88385). This rating applies across its full storage and operating ambient range (–65 °C to +150 °C) and supports use in high-temperature environments such as engine compartments or enclosed industrial enclosures. Derating curves in Figure 2 define allowable power reduction above TA = 25 °C.
SM6T200AHM3/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:
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SM6T200AHM3/I FAQ
1.How can I place an order for SM6T200AHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T200AHM3/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 SM6T200AHM3/I reliable?
The price and inventory of SM6T200AHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM6T200AHM3/I is usually 5 days.
3.What payment methods are accepted for SM6T200AHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T200AHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T200AHM3/I?
SM6T200AHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T200AHM3/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 SM6T200AHM3/I?
For technical support, including SM6T200AHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T200AHM3/I requirements.
6.How does Aetrix verify that SM6T200AHM3/I is sourced from the original manufacturer or authorized distributors?
All SM6T200AHM3/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 SM6T200AHM3/I meets industry standards.
7.What is the process for return or replacement of SM6T200AHM3/I?
All SM6T200AHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with SM6T200AHM3/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 SM6T200AHM3/I part is unused and in its original packaging.
Return procedure for SM6T200AHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM6T200AHM3/I Tags
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