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Vishay General Semiconductor - Diodes Division SM6T200AHM3_B/H
- Part No.:
- SM6T200AHM3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T200AHM3_B/H.pdf
- Description:
- 600W,200V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:7,020
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Product details
Overview
SM6T200AHM3_B/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 IPPM, 600 W peak pulse power (10/1000 μs), and AEC-Q101 qualification for automotive applications.
For engineers reviewing the SM6T200AHM3_B/H datasheet, SM6T200AHM3_B/H pinout, SM6T200AHM3_B/H application, or SM6T200AHM3_B/H equivalent, key selection criteria include clamping performance under 10/1000 μs surge, thermal resistance (RθJA = 100 °C/W), unidirectional polarity marking, halogen-free RoHS compliance, and suitability for high-voltage DC bus protection in automotive ECUs and industrial power supplies.
Technical Context
This TVS diode operates as a unidirectional clamping device, leveraging a glass-passivated junction to deliver fast response (<1 ns) to voltage transients. Its 274 V clamping voltage at 2.2 A (10/1000 μs) ensures robust overvoltage protection for 200 V-rated circuits while maintaining low leakage (<1 μA at 171 V).
The SMB package enables automated placement and meets MSL level 1 (260 °C reflow), with thermal resistance of 100 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead), supporting reliable operation up to TJ = 150 °C in constrained PCB layouts.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 171 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (min) | 190 V - Minimum breakdown voltage at 1 mA test current, defining turn-on threshold |
| VC (max) | 274 V - Maximum clamped voltage at 2.2 A peak pulse current (10/1000 μs), limiting stress on downstream components |
| PPPM | 600 W - Peak pulse power handling capability under standard 10/1000 μs waveform |
| RθJA | 100 °C/W - Junction-to-ambient thermal resistance on standard 0.2" × 0.2" copper pads, critical for thermal derating above 25 °C |
| TJ max | +150 °C - Maximum allowable junction temperature, enabling use in under-hood automotive environments |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability per stress-test requirements including HTGB, HTRB, and TCT |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, halogen-free, RoHS-compliant, with matte tin-plated leads solderable per J-STD-002. Cathode indicated by band on body.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal (unidirectional) | Connected to lower-potential side of protected circuit; conducts during forward surge events |
| Cathode | Reverse-biased clamping terminal | Marked with band; connected to higher-potential rail (e.g., 200 V DC bus); initiates clamping when reverse voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables suppression of high-energy transients such as ISO 7637-2 Pulse 1/2a/5a in automotive 24 V systems |
| Glass passivated chip junction | Ensures stable VBR over time and temperature, minimizing parameter drift in harsh environments |
| Low inductance SMB package | Reduces voltage overshoot during fast-rising transients (e.g., ESD, load dump), improving clamping fidelity |
| AEC-Q101 qualified (HM3 suffix) | Confirms suitability for automotive control units requiring extended lifetime and stress-test validation |
| Halogen-free & RoHS-compliant | Meets environmental compliance mandates for global OEM supply chains without compromising electrical performance |
Applications
| Automotive Power Distribution | Industrial DC Link Protection |
|---|---|
Use Scenario: Protecting 200 V DC bus lines in battery management systems and DC-DC converters against load dump and alternator surges. IC Role / Device Role / Timing Role: Unidirectional TVS clamp absorbing energy during ISO 7637-2 Pulse 5a (load dump) events. Use Value: Limits transient voltage to ≤274 V, preventing damage to MOSFETs and gate drivers rated for 300 V breakdown. | Use Scenario: Safeguarding IGBT gate drivers and sensing circuits in motor drives exposed to switching-induced voltage spikes. IC Role / Device Role / Timing Role: Fast-response clamping element placed across DC link rails to suppress dV/dt-induced ringing. Use Value: 2.2 A IPPM rating and 100 °C/W RθJA allow sustained operation in enclosed enclosures without forced cooling. |
| Telecom Power Supply Input | Renewable Energy Inverter DC Bus |
Use Scenario: Input-stage surge protection for 200 V telecom rectifiers subjected to lightning-induced surges per IEC 61000-4-5. IC Role / Device Role / Timing Role: Primary overvoltage clamp on AC/DC front-end, coordinated with MOVs and fuses. Use Value: 274 V VC ensures compatibility with 200 V nominal input designs while meeting Class III surge immunity requirements. | Use Scenario: Overvoltage suppression on photovoltaic string outputs feeding central inverters operating near 200 V MPPT range. IC Role / Device Role / Timing Role: Standoff-rated TVS protecting MPPT controller inputs from grid-switching transients. Use Value: 171 V VWM provides sufficient margin above 200 V nominal while maintaining low leakage (<1 μA) to avoid power 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-E3/52 | Same VWM (171 V), but lower PPPM (400 W), higher RθJA (140 °C/W), non-AEC-Q101 | Not qualified for automotive under-hood use; suitable only for commercial-grade telecom or industrial power supplies | Select SMAJ200A-E3/52 only if AEC-Q101 and 600 W surge capacity are not required |
| 1.5SMC200A | Higher package thermal mass (SMC), RθJA = 100 °C/W same, but larger footprint (DO-214AB), no AEC-Q101 HM3 variant | Requires PCB area increase; lacks halogen-free option and automotive qualification | Choose 1.5SMC200A only when higher thermal inertia is needed and space permits larger SMC package |
Compared with SMAJ200A-E3/52 and 1.5SMC200A, SM6T200AHM3_B/H delivers automotive-grade reliability, halogen-free compliance, and superior 600 W surge handling in the compact SMB footprint-making it optimal for space-constrained, high-reliability 200 V DC systems.
Availability
SM6T200AHM3_B/H is available at Aetrix Electronics and suitable for automotive electronic control units, industrial motor drives, telecom power rectifiers, and renewable energy inverters requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SM6T200AHM3_B/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, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and application-specific performance.
The SM6T Series is engineered for high-energy transient suppression in automotive, industrial, and telecom power systems, targeting robust protection of 24 V to 200 V DC rails against ISO 7637, IEC 61000-4-5, and lightning-induced surges.
FAQ
What is the clamping voltage of SM6T200AHM3_B/H at its rated peak pulse current?
The SM6T200AHM3_B/H has a maximum clamping voltage (VC) of 274 V at 2.2 A peak pulse current with a 10/1000 μs waveform. This value is measured under standardized test conditions and defines the upper voltage limit imposed on protected circuitry during surge events. The clamping performance is guaranteed across the full operating temperature range and supports design margining for 300 V-rated downstream components.
Is SM6T200AHM3_B/H suitable for automotive applications?
Yes, SM6T200AHM3_B/H is AEC-Q101 qualified and manufactured with the HM3 suffix, indicating halogen-free, RoHS-compliant construction and validation for automotive-grade reliability. It meets stress tests including high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), and temperature cycling (TCT), making it appropriate for engine control modules, battery management systems, and ADAS power supplies.
What does the "HM3" suffix indicate in SM6T200AHM3_B/H?
The "HM3" suffix in SM6T200AHM3_B/H denotes halogen-free, RoHS-compliant construction with AEC-Q101 qualification. It distinguishes this variant from commercial-grade E3/M3 versions and confirms compliance with automotive environmental and reliability standards, including whisker resistance (JESD 201 Class 2) and moisture sensitivity level 1 (MSL-1, 260 °C peak reflow).
How does the SMB package of SM6T200AHM3_B/H affect thermal performance?
The SMB (DO-214AA) package of SM6T200AHM3_B/H provides a junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" copper pads. This allows predictable thermal derating above 25 °C ambient and supports continuous operation up to +150 °C junction temperature. Its low-profile form factor also minimizes parasitic inductance, enhancing clamping speed for fast transients.
What is the reverse leakage current specification for SM6T200AHM3_B/H at its standoff voltage?
At its maximum standoff voltage (VWM) of 171 V, SM6T200AHM3_B/H exhibits a maximum reverse leakage current (ID) of 1 μA at 25 °C. This low leakage ensures minimal standby power loss in high-impedance monitoring circuits and preserves accuracy in precision voltage-sensing applications upstream of the protected node.
SM6T200AHM3_B/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- SM6T, TransZorb®
- Packaging:
- Bulk
- 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)
SM6T200AHM3_B/H FAQ
1.How can I place an order for SM6T200AHM3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T200AHM3_B/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_B/H reliable?
The price and inventory of SM6T200AHM3_B/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_B/H is usually 5 days.
3.What payment methods are accepted for SM6T200AHM3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T200AHM3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T200AHM3_B/H?
SM6T200AHM3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T200AHM3_B/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_B/H?
For technical support, including SM6T200AHM3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T200AHM3_B/H requirements.
6.How does Aetrix verify that SM6T200AHM3_B/H is sourced from the original manufacturer or authorized distributors?
All SM6T200AHM3_B/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_B/H meets industry standards.
7.What is the process for return or replacement of SM6T200AHM3_B/H?
All SM6T200AHM3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with SM6T200AHM3_B/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_B/H part is unused and in its original packaging.
Return procedure for SM6T200AHM3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM6T200AHM3_B/H Tags
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