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Vishay General Semiconductor - Diodes Division SM6T200CAHM3/H
- Part No.:
- SM6T200CAHM3/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T200CAHM3/H.pdf
- Description:
- TVS DIODE 171VWM 274VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,540
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Product details
Overview
SM6T200CAHM3/H from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, rated for 200 V standoff voltage (VWM), 210 V minimum breakdown voltage (VBR), 328 V maximum clamping voltage (VC) at 2.0 A peak pulse current, and 600 W peak pulse power with 10/1000 μs waveform. It protects signal lines in automotive sensor units against inductive switching transients.
For engineers reviewing the SM6T200CAHM3/H datasheet, SM6T200CAHM3/H pinout, SM6T200CAHM3/H application, or SM6T200CAHM3/H equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, halogen-free RoHS compliance, low clamping ratio (1.56×VWM), and SMB package compatibility with automated SMT assembly.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, delivering consistent clamping performance regardless of transient polarity. Its glass-passivated junction ensures stable leakage (<1.0 μA at VWM) and robust surge handling up to 100 A IFSM (unidirectional reference only; not applicable here).
Designed for surface-mount use on 0.2" × 0.2" copper pads, it achieves 100 °C/W junction-to-ambient thermal resistance and supports operation from −65 °C to +150 °C. The device meets MSL Level 1 per J-STD-020 with 260 °C reflow peak temperature tolerance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 200 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (min) | 209 V - Guaranteed breakdown starts no lower than this under 1.0 mA test current |
| VC @ IPPM | 328 V - Clamped voltage during 2.0 A 10/1000 μs transient, limiting downstream stress |
| PPPM | 600 W - Peak transient power dissipation capability with standard 10/1000 μs waveform |
| TJ max | +150 °C - Maximum junction temperature enabling reliable operation in under-hood automotive environments |
| Package | SMB (DO-214AA) - Standardized surface-mount outline with 5.59 mm body length and 2.20 mm height |
| Compliance | AEC-Q101 qualified, halogen-free, RoHS-compliant - Meets automotive reliability and environmental requirements |
Pinout & Package
SM6T200CAHM3/H uses an SMB (DO-214AA) surface-mount package with two terminals and no polarity marking-consistent with its bidirectional function. The case is molded with UL 94 V-0 rated compound, and terminals are matte tin-plated for solderability per J-STD-002.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional terminal pair | No polarity designation; either terminal serves as anode or cathode depending on transient direction |
| Case | Non-electrical mechanical interface | Plastic encapsulation provides insulation, mechanical protection, and thermal path to PCB copper |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables robust protection against ISO 7637-2 Pulse 1/2a/5a-level transients in 12 V automotive systems |
| Low clamping ratio (VC/VWM = 1.64) | Minimizes overvoltage exposure to protected ICs while maintaining margin above system rail |
| AEC-Q101 qualification | Validates reliability for automotive applications including engine control, ADAS sensors, and body electronics |
| Halogen-free & RoHS-compliant (HM3 suffix) | Meets global environmental regulations without compromising thermal or electrical performance |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking, simplifying manufacturing logistics |
Applications
| Automotive Sensor Protection | Industrial CAN Bus Interface |
|---|---|
Use Scenario: Protecting LIN/CAN transceiver inputs in door module ECUs exposed to load dump and inductive kickback. IC Role / Device Role / Timing Role: Bidirectional clamping element placed directly at connector entry point before signal conditioning circuitry. Use Value: Limits transient voltage to ≤328 V during 2.0 A surges, preventing damage to 5 V tolerant transceivers while maintaining signal integrity. | Use Scenario: Safeguarding RS-485/CAN FD physical layer receivers in factory automation PLCs subject to EFT and surge events. IC Role / Device Role / Timing Role: Primary overvoltage clamp on differential bus lines (CAN_H/CAN_L), referenced to common-mode ground. Use Value: Symmetric clamping ensures equal protection for both signal polarities, preserving differential signaling margins during ±328 V transients. |
| Consumer Power Adapter Input | Telecom Line Card Surge Suppression |
Use Scenario: Secondary-side transient suppression on 19 V DC input rails of laptop adapters subjected to hot-plug and cable discharge events. IC Role / Device Role / Timing Role: Standoff-rated TVS placed after primary DC-DC converter output filter, before buck regulator input. Use Value: 200 V VWM allows safe operation across full adapter output tolerance range while clamping fast 10/1000 μs spikes below IC absolute maximum ratings. | Use Scenario: Front-end protection on Ethernet PHY interfaces in VoIP gateways connected to unshielded twisted-pair telephone lines. IC Role / Device Role / Timing Role: First-line defense against lightning-induced surges coupled onto data lines via transformer isolation. Use Value: 600 W rating handles ITU-T K.21 basic level surges; SMB footprint enables compact placement adjacent to magnetics without trace inductance penalty. |
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 (200 V), lower PPPM (400 W), SMA package (smaller thermal mass) | Limited to lower-energy transients; unsuitable for ISO 7637-2 Pulse 5a | Select when board space is constrained and surge energy is <400 W |
| SMCJ200CA | Same VWM, higher PPPM (1500 W), larger SMC package (DO-214AB) | Requires larger PCB area and higher mounting pad thermal mass | Select when system-level testing requires >600 W immunity or extended surge duration handling |
Compared with SMAJ200CA and SMCJ200CA, SM6T200CAHM3/H delivers optimal balance of 600 W surge capacity, AEC-Q101 qualification, and SMB footprint-making it preferred for space-constrained automotive and industrial modules requiring validated reliability without over-engineering.
Availability
SM6T200CAHM3/H is available at Aetrix Electronics and suitable for automotive sensor protection, industrial CAN bus interface, and telecom line card surge suppression requiring stable component supply and long-term lifecycle support.
Supply support for SM6T200CAHM3/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 high-reliability and automotive-grade solutions.
The SM6T Series is designed specifically for surface-mount transient voltage suppression in harsh environments, targeting automotive, industrial, and telecom applications where bidirectional clamping, AEC-Q101 validation, and standardized SMB packaging are critical.
FAQ
What does the "CA" suffix indicate in SM6T200CAHM3/H?
The "CA" suffix in SM6T200CAHM3/H denotes a bidirectional configuration, meaning the device clamps transient voltages equally in both polarities. Unlike unidirectional variants (e.g., SM6T200A), SM6T200CAHM3/H has no cathode band marking and functions identically whether positive or negative transients occur across its terminals.
Is SM6T200CAHM3/H qualified for automotive use?
Yes, SM6T200CAHM3/H is AEC-Q101 qualified, as confirmed by the "HM3" suffix indicating halogen-free, RoHS-compliant construction with automotive-grade reliability testing. This qualification covers temperature cycling, humidity bias, and surge endurance-making SM6T200CAHM3/H suitable for engine bay, chassis, and ADAS sensor applications.
What is the maximum clamping voltage of SM6T200CAHM3/H under standard test conditions?
The maximum clamping voltage (VC) of SM6T200CAHM3/H is 328 V when subjected to a 10/1000 μs waveform at 2.0 A peak pulse current (IPPM). This value is measured per Figure 1 in Vishay document 88385 and defines the upper voltage limit imposed on protected circuitry during surge events.
How does the SMB (DO-214AA) package of SM6T200CAHM3/H compare thermally to larger packages like SMC?
SM6T200CAHM3/H in SMB package has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W, higher than SMC's ~50 °C/W. This means SM6T200CAHM3/H relies more heavily on PCB copper area for heat dissipation-requiring minimum 0.2" × 0.2" pads per terminal to sustain rated 600 W pulse power without exceeding TJ max of +150 °C.
Can SM6T200CAHM3/H replace unidirectional TVS diodes in existing designs?
No-SM6T200CAHM3/H is strictly bidirectional and lacks polarity marking, so it cannot substitute for unidirectional TVS diodes (e.g., SM6T200A) without circuit review. Replacing a unidirectional device with SM6T200CAHM3/H may cause unintended conduction during normal forward-biased operation, especially in DC-coupled signal paths.
SM6T200CAHM3/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:
- Discontinued at Digi-Key
- 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/H FAQ
1.How can I place an order for SM6T200CAHM3/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T200CAHM3/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/H reliable?
The price and inventory of SM6T200CAHM3/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/H is usually 5 days.
3.What payment methods are accepted for SM6T200CAHM3/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T200CAHM3/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T200CAHM3/H?
SM6T200CAHM3/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T200CAHM3/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/H?
For technical support, including SM6T200CAHM3/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T200CAHM3/H requirements.
6.How does Aetrix verify that SM6T200CAHM3/H is sourced from the original manufacturer or authorized distributors?
All SM6T200CAHM3/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/H meets industry standards.
7.What is the process for return or replacement of SM6T200CAHM3/H?
All SM6T200CAHM3/H units undergo pre-shipment inspection (PSI). If there is an issue with SM6T200CAHM3/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/H part is unused and in its original packaging.
Return procedure for SM6T200CAHM3/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM6T200CAHM3/H Tags
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