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Vishay General Semiconductor - Diodes Division SM6T200CAHM3_A/H
- Part No.:
- SM6T200CAHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T200CAHM3_A/H.pdf
- Description:
- TVS DIODE 171VWM 274VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,074
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Product details
Overview
SM6T200CAHM3_A/H from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on power and signal lines. It features a 171 V standoff voltage (VWM), 209–231 V breakdown voltage (VBR) at 1 mA, 328 V maximum clamping voltage (VC) at 2.0 A IPPM (10/1000 μs), 600 W peak pulse power rating, and AEC-Q101 qualification for automotive applications.
For engineers reviewing the SM6T200CAHM3_A/H datasheet, SM6T200CAHM3_A/H pinout, SM6T200CAHM3_A/H application, or SM6T200CAHM3_A/H equivalent, key selection criteria include bidirectional clamping capability, low-inductance SMB package suitability for high-speed surge suppression, thermal resistance (RθJA = 100 °C/W), and halogen-free RoHS-compliant construction with MSL Level 1 rating.
Technical Context
The SM6T200CAHM3_A/H operates as a bidirectional avalanche diode, symmetrically clamping positive and negative transients without polarity dependence. Its glass-passivated junction ensures stable breakdown characteristics, while low inductance supports fast response to ESD and lightning-induced surges.
Rated for 600 W peak pulse power (10/1000 μs), it delivers 328 V clamping at 2.0 A IPPM and sustains operation from −65 °C to +150 °C junction temperature. The device is qualified to AEC-Q101 and built in halogen-free, RoHS-compliant packaging with matte tin-plated leads solderable per J-STD-002.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 171 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 209 V / 231 V at 1 mA - Confirmed bidirectional breakdown range ensuring reliable turn-on under surge |
| VC @ IPPM | 328 V at 2.0 A (10/1000 μs) - Clamping voltage limiting downstream component stress during transient events |
| PPPM | 600 W - Peak surge energy handling capacity compatible with IEC 61000-4-5 Level 4 testing |
| TJ max. | +150 °C - Enables use in under-hood automotive environments and industrial power supplies |
| RθJA | 100 °C/W - Thermal resistance indicating need for minimum 5.0 mm × 5.0 mm copper pad per terminal for rated power |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional - no polarity marking; symmetrical cathode/anode terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient return path (bidirectional) | Connects to protected line; conducts during negative transients and reverse-biased during positive clamping |
| Cathode | Transient return path (bidirectional) | Identical function to Anode; device exhibits identical VBR and VC in both directions due to symmetrical structure |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC lines, differential buses, or ungrounded signal pairs without polarity concerns |
| 600 W peak pulse power (10/1000 μs) | Supports robust immunity to IEC 61000-4-5 combination wave surges up to 4 kV/2 Ω |
| Halogen-free, RoHS-compliant (HM3 suffix) | Meets automotive and industrial environmental compliance requirements including JESD201 Class 2 whisker resistance |
| MSL Level 1, 260 °C reflow compatible | Allows standard SMT assembly without moisture sensitivity handling or baking |
| Low inductance SMB package | Minimizes voltage overshoot during fast-rising transients (e.g., ESD > 1 ns rise time) |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 24 V CAN bus power rails and LIN supply lines against load dump and jump-start transients. IC Role / Device Role / Timing Role: Bidirectional TVS clamping element placed between VBAT and GND, absorbing energy without polarity constraints. Use Value: Withstands 328 V clamping at 2.0 A and operates up to +150 °C, meeting ISO 7637-2 Pulse 5a requirements for commercial and light-duty vehicles. |
Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA current loops) in factory automation sensors exposed to motor switching noise. IC Role / Device Role / Timing Role: Low-inductance shunt clamp across signal and return, activated within nanoseconds of overvoltage onset. Use Value: 600 W peak power rating and symmetrical clamping ensure consistent protection of precision DACs and op-amps without polarity-dependent derating. |
| Telecom DC Power Input Protection | Consumer Equipment AC Adapter Output Protection |
Use Scenario: Securing −48 V telecom rectifier outputs against lightning-induced surges entering central office equipment. IC Role / Device Role / Timing Role: Primary-level TVS mounted directly at power entry, upstream of DC/DC converters and hot-swap controllers. Use Value: 171 V VWM allows safe operation across −48 V nominal with ±20 % tolerance, while 328 V VC limits stress on downstream MOSFETs and controllers. |
Use Scenario: Adding secondary-side surge protection to USB-C PD adapter 20 V output rails before connector interface. IC Role / Device Role / Timing Role: Bidirectional clamp bridging VBUS and GND to suppress common-mode and differential transients from cable coupling. Use Value: SMB footprint enables compact layout near connector; AEC-Q101 qualification ensures long-term reliability in consumer power adapters subject to repeated plug/unplug cycles. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ200CA | Same VWM (171 V), but lower PPPM (400 W); SMA package (larger RθJA = 150 °C/W) | Limited to lower-energy surges; requires larger PCB area and more copper for thermal management | Select when cost sensitivity outweighs surge margin and board space permits larger footprint |
| SMCJ200CA | Higher PPPM (1500 W); SMC package (RθJA = 50 °C/W); same VWM/VBR/VC specs | Overqualified for 600 W needs; occupies ~2.5× PCB area; better suited for primary-side AC input protection | Choose only if system-level testing reveals insufficient margin with SM6T200CAHM3_A/H or if legacy SMC layout exists |
Compared with SMAJ200CA and SMCJ200CA, the SM6T200CAHM3_A/H delivers optimal balance of surge robustness, compact SMB footprint, automotive qualification, and thermal performance-making it ideal for space-constrained, high-reliability 24–48 V DC systems where 600 W clamping is sufficient.
Availability
SM6T200CAHM3_A/H is available at Aetrix Electronics and suitable for automotive infotainment power rails, industrial sensor signal conditioning circuits, and telecom DC distribution systems requiring stable component supply, halogen-free compliance, and AEC-Q101 assurance.
Supply support for SM6T200CAHM3_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-energy transient suppression in automotive, industrial, and telecom infrastructure-delivering standardized 600 W surge capability in compact SMB packages with AEC-Q101 and halogen-free variants.
FAQ
What is the clamping voltage of SM6T200CAHM3_A/H at its rated peak pulse current?
The SM6T200CAHM3_A/H has a maximum clamping voltage (VC) of 328 V at 2.0 A peak pulse current (IPPM) under the standard 10/1000 μs waveform. This value is measured bidirectionally and defines the upper voltage limit imposed on protected circuitry during transient events. The clamping behavior is symmetric, and VC remains consistent regardless of surge polarity. This specification is confirmed in the Vishay SM6T datasheet revision 09-Jan-2024, page 2.
Is SM6T200CAHM3_A/H suitable for automotive applications?
Yes, SM6T200CAHM3_A/H is AEC-Q101 qualified and manufactured with halogen-free, RoHS-compliant materials (HM3 suffix). It operates from −65 °C to +150 °C and meets MSL Level 1 reflow requirements. These attributes make SM6T200CAHM3_A/H appropriate for under-hood and cabin applications such as body control modules, ADAS power supplies, and infotainment system inputs where transient immunity and long-term reliability are critical.
What does the "CA" suffix indicate in SM6T200CAHM3_A/H?
The "CA" suffix in SM6T200CAHM3_A/H denotes a bidirectional configuration. Unlike unidirectional variants (e.g., SM6T200AHM3_A/H), the CA version provides symmetrical clamping for both positive and negative transients without requiring polarity-aware placement. This eliminates orientation errors during automated assembly and simplifies protection of AC-coupled or floating signal paths. The device has no cathode band marking.
How does the SMB (DO-214AA) package of SM6T200CAHM3_A/H affect thermal performance?
The SMB package of SM6T200CAHM3_A/H 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. This requires careful PCB layout to maintain safe junction temperatures under sustained 5.0 W power dissipation. Derating is necessary above TA = 25 °C per Figure 2 in the datasheet. The compact size supports high-density layouts but demands adherence to recommended pad geometry for thermal integrity.
What is the standoff voltage (VWM) and why is it important for SM6T200CAHM3_A/H?
The standoff voltage (VWM) of SM6T200CAHM3_A/H is 171 V - the maximum DC or RMS voltage the device can withstand continuously without entering breakdown. This parameter ensures the TVS remains non-conductive during normal operation while allowing sufficient margin above system nominal voltage (e.g., 24 V or 48 V rails). Exceeding VWM risks leakage current increase and premature wear; selecting VWM ≥ 1.1× system max operating voltage is standard practice for reliable SM6T200CAHM3_A/H deployment.
SM6T200CAHM3_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:
- -
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SM6T200CAHM3_A/H FAQ
1.How can I place an order for SM6T200CAHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T200CAHM3_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 SM6T200CAHM3_A/H reliable?
The price and inventory of SM6T200CAHM3_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 SM6T200CAHM3_A/H is usually 5 days.
3.What payment methods are accepted for SM6T200CAHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T200CAHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T200CAHM3_A/H?
SM6T200CAHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T200CAHM3_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 SM6T200CAHM3_A/H?
For technical support, including SM6T200CAHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T200CAHM3_A/H requirements.
6.How does Aetrix verify that SM6T200CAHM3_A/H is sourced from the original manufacturer or authorized distributors?
All SM6T200CAHM3_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 SM6T200CAHM3_A/H meets industry standards.
7.What is the process for return or replacement of SM6T200CAHM3_A/H?
All SM6T200CAHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SM6T200CAHM3_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 SM6T200CAHM3_A/H part is unused and in its original packaging.
Return procedure for SM6T200CAHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM6T200CAHM3_A/H Tags
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