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Vishay General Semiconductor - Diodes Division SM6T200AHM3_A/H
- Part No.:
- SM6T200AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T200AHM3_A/H.pdf
- Description:
- TVS DIODE 171VWM 274VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,411
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Product details
Overview
SM6T200AHM3_A/H from Vishay General Semiconductor is a unidirectional surface-mount TRANSZORB® transient voltage suppressor in SMB (DO-214AA) package, with 200 V standoff voltage (VWM), 210 V minimum breakdown voltage (VBR), 274 V maximum clamping voltage at 2.2 A (10/1000 μs), 600 W peak pulse power rating, and AEC-Q101 qualification for automotive applications.
For engineers reviewing the SM6T200AHM3_A/H datasheet, SM6T200AHM3_A/H pinout, SM6T200AHM3_A/H application, or SM6T200AHM3_A/H equivalent, key selection criteria include clamping performance under 10/1000 μs transients, thermal resistance (RθJA = 100 °C/W), unidirectional polarity marking, halogen-free RoHS compliance, and suitability for high-voltage rail protection in automotive power electronics.
Technical Context
The SM6T200AHM3_A/H operates as a unidirectional TVS diode optimized for clamping fast-rising voltage spikes on DC power lines. Its glass-passivated junction ensures stable breakdown behavior, while low-inductance SMB packaging supports effective suppression of ESD and load-dump transients up to 600 W.
Designed for automotive-grade reliability, it meets AEC-Q101 stress testing requirements and features matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards. The device is rated for operation from –65 °C to +150 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 171 V - Maximum continuous reverse operating voltage before conduction begins |
| VBR (min) | 190 V - Minimum breakdown voltage at 1 mA test current, defining turn-on threshold |
| VC @ IPPM | 274 V - Clamped voltage at 2.2 A peak pulse current (10/1000 μs), limiting downstream stress |
| PPPM | 600 W - Peak transient power handling capability under standardized surge waveform |
| RθJA | 100 °C/W - Thermal resistance from junction to ambient, critical for derating above 25 °C |
| TJ max. | +150 °C - Maximum allowable junction temperature, enabling under-hood automotive use |
| Polarity | Unidirectional - Cathode marked by band; blocks reverse current until breakdown |
Pinout & Package
SMB (DO-214AA) surface-mount package with cathode indicated by molded band; terminals are matte tin-plated for reliable soldering per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse voltage reference | Connected to lower-potential side of protected line; defines directionality of clamping |
| Cathode | Clamping output / Surge current sink | Marked end; conducts transient current to ground or return path during overvoltage events |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables robust protection against ISO 7637-2 load dump and IEC 61000-4-5 surges in 12 V/24 V systems |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive powertrain and body electronics requiring extended temperature and reliability validation |
| Halogen-free, RoHS-compliant | Meets environmental compliance mandates for Tier 1 automotive suppliers and industrial OEMs |
| Low inductance SMB package | Minimizes voltage overshoot during fast transients (<1 ns rise time), improving clamping fidelity |
| MSL Level 1 (260 °C peak reflow) | Supports standard lead-free SMT assembly without moisture sensitivity concerns |
Applications
| Automotive Power Rail Protection | Industrial DC Power Input |
|---|---|
Use Scenario: Protecting 24 V battery-fed ECUs from load dump transients per ISO 7637-2 Pulse 5a (up to 120 V, 400 ms). IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between battery rail and input filter capacitor. Use Value: Limits voltage to ≤274 V during 2.2 A surge, preventing damage to downstream DC-DC controllers and microcontrollers. | Use Scenario: Safeguarding programmable logic controller (PLC) power inputs against switching surges from inductive solenoids and contactors. IC Role / Device Role / Timing Role: Primary overvoltage suppression element on 24 V DC supply line prior to bulk capacitance. Use Value: Absorbs 600 W pulses without degradation, maintaining system uptime in factory automation environments. |
| Telecom Power Interface | Renewable Energy Charge Controller |
Use Scenario: Shielding PoE-powered network switches from induced lightning surges on 48 V DC distribution lines. IC Role / Device Role / Timing Role: Secondary-level TVS on midspan injector output, coordinated with primary GDT protection. Use Value: Clamps transients within 100 ns, preserving signal integrity and preventing latch-up in Ethernet PHY ICs. | Use Scenario: Protecting solar charge controller inputs from voltage reversals and battery connection transients in off-grid PV systems. IC Role / Device Role / Timing Role: Reverse-polarity and overvoltage guard on battery-side terminal of MPPT converter. Use Value: Withstands repeated 200 V+ surges while maintaining <1 μA leakage at 171 V, ensuring low standby loss. |
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-E3/5B | Same VWM/VBR/VC ratings; SMA package (higher RθJA = 140 °C/W); non-AEC-Q101 | Limited to commercial-temperature industrial use; not qualified for automotive under-hood deployment | Select when cost-sensitive non-automotive designs require identical electrical specs but relaxed qualification |
| 1.5SMC200A | Higher PPPM (1500 W); larger SMC package; same VWM/VBR; no AEC-Q101 option | Better suited for high-energy surges (e.g., AC mains coupling), but incompatible with dense PCB layouts | Choose when surge energy exceeds 600 W and board space allows SMC footprint |
Compared with SMAJ200A-E3/5B and 1.5SMC200A, SM6T200AHM3_A/H uniquely combines AEC-Q101 qualification, SMB footprint density, and precise 171 V–274 V clamping window-making it optimal for space-constrained automotive modules where reliability and thermal performance are co-prioritized.
Availability
SM6T200AHM3_A/H is available at Aetrix Electronics and suitable for automotive electronic control units, industrial programmable logic controllers, telecom power interfaces, and renewable energy charge controllers requiring stable component supply across long production lifecycles.
Supply support for SM6T200AHM3_A/H 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, efficiency, and application-specific optimization.
The SM6T Series is engineered for high-reliability transient suppression in harsh environments, targeting automotive, industrial, and telecom power systems where consistent clamping performance and qualification compliance are mandatory.
FAQ
What is the clamping voltage of SM6T200AHM3_A/H at its rated peak pulse current?
The SM6T200AHM3_A/H has a maximum clamping voltage (VC) of 274 V at 2.2 A peak pulse current under the 10/1000 μs waveform. This value is measured per Figure 1 in Vishay document 88385 and defines the upper voltage limit imposed on protected circuitry during standardized surge events. The clamping performance remains stable across its full operating temperature range.
Is SM6T200AHM3_A/H suitable for automotive applications?
Yes, SM6T200AHM3_A/H is AEC-Q101 qualified, as confirmed by its HM3 suffix and documentation in Vishay's SM6T series datasheet (Rev. 09-Jan-2024). It supports junction temperatures from –65 °C to +150 °C and passes stress tests required for automotive powertrain and body electronics, making SM6T200AHM3_A/H appropriate for under-hood and chassis-mounted modules.
What does the "HM3" suffix indicate in SM6T200AHM3_A/H?
The "HM3" suffix in SM6T200AHM3_A/H denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. Per Vishay's ordering guide, HM3 devices meet JESD 201 Class 2 whisker resistance and are intended for automotive-grade production. The "_A/H" indicates revision A in 7″ tape-and-reel packaging (code H).
How does the SMB package of SM6T200AHM3_A/H compare thermally to larger packages?
SM6T200AHM3_A/H uses the SMB (DO-214AA) package with a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W on 0.2″ × 0.2″ copper pads. While larger packages like SMC offer lower RθJA (~50 °C/W), the SMB footprint enables higher board density. Derating above 25 °C is required per Figure 2 in the datasheet to maintain safe TJ ≤ 150 °C.
Can SM6T200AHM3_A/H be used in bidirectional configurations?
No, SM6T200AHM3_A/H is unidirectional only, as indicated by its "A" suffix and cathode band marking. Bidirectional variants require the "CA" suffix (e.g., SM6T200CA). Using SM6T200AHM3_A/H in reverse-biased AC applications would result in forward conduction and failure; always verify polarity alignment during layout for SM6T200AHM3_A/H placement.
SM6T200AHM3_A/H 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:
- 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_A/H FAQ
1.How can I place an order for SM6T200AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T200AHM3_A/H 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_A/H reliable?
The price and inventory of SM6T200AHM3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM6T200AHM3_A/H is usually 5 days.
3.What payment methods are accepted for SM6T200AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T200AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T200AHM3_A/H?
SM6T200AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T200AHM3_A/H 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_A/H?
For technical support, including SM6T200AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T200AHM3_A/H requirements.
6.How does Aetrix verify that SM6T200AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All SM6T200AHM3_A/H 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_A/H meets industry standards.
7.What is the process for return or replacement of SM6T200AHM3_A/H?
All SM6T200AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SM6T200AHM3_A/H, 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_A/H part is unused and in its original packaging.
Return procedure for SM6T200AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM6T200AHM3_A/H Tags
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