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Vishay General Semiconductor - Diodes Division SM6T200CAHE3_A/I
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- Part No.:
- SM6T200CAHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SM6T200CAHE3_A/I.pdf
- Description:
- TVS DIODE 171VWM 274VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,747
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Product details
Overview
SM6T200CAHE3_A/I from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, rated for 200 V standoff voltage (VWM), 274 V clamping voltage (VC) at 2.2 A peak pulse current (IPPM), and 600 W peak pulse power (10/1000 μs). It provides robust ESD and surge protection for automotive sensor signal lines, power rails, and I/O interfaces operating up to 150 °C junction temperature.
For engineers reviewing the SM6T200CAHE3_A/I datasheet, SM6T200CAHE3_A/I pinout, SM6T200CAHE3_A/I application, or SM6T200CAHE3_A/I equivalent, key selection criteria include bidirectional clamping behavior, AEC-Q101 qualification, low clamping ratio (VC/VWM ≈ 1.37), thermal resistance (RθJA = 100 °C/W), and compatibility with automated SMT assembly on standard 5.0 mm × 5.0 mm copper pads.
Technical Context
The SM6T200CAHE3_A/I operates as a voltage-clamped crowbar device during transients, leveraging an avalanche breakdown mechanism with symmetric bidirectional conduction. Its glass-passivated junction ensures stable VBR (209–231 V) and low leakage (<1 μA at 188 V) across temperature.
Designed for high-energy surge immunity, it sustains 600 W peak pulse power per 10/1000 μs waveform while maintaining clamping voltage ≤274 V at IPPM = 2.2 A. Thermal performance is defined by RθJL = 20 °C/W and MSL Level 1 rating (260 °C reflow peak).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 188 V - maximum continuous reverse operating voltage before clamping initiates |
| VBR (min/max) | 209 V / 231 V - breakdown voltage range at 1 mA test current, defining turn-on threshold consistency |
| VC @ IPPM | 274 V at 2.2 A (10/1000 μs) - clamping voltage limiting downstream circuit stress during surge events |
| PPPM | 600 W - peak transient power handling capability under standardized surge waveform |
| RθJA | 100 °C/W - junction-to-ambient thermal resistance on recommended 5.0 mm × 5.0 mm pad layout |
| TJ max. | +150 °C - maximum allowable junction temperature, supporting under-hood automotive use |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling, HTRB, and ESD |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); matte tin-plated leads compliant with J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode / Anode | Reversible terminals | Identical bidirectional conduction path - either terminal serves as cathode or anode depending on transient polarity |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns |
| AEC-Q101 qualification | Validated for automotive applications including engine control units and ADAS sensor interfaces |
| Low clamping ratio (VC/VWM) | 1.37 - minimizes overvoltage exposure to protected ICs compared to higher-ratio TVS devices |
| MSL Level 1 rating | Supports lead-free reflow up to 260 °C without moisture-induced damage |
| Glass-passivated junction | Ensures stable VBR and low leakage drift over time and temperature cycling |
Applications
| Automotive Sensor Protection | Industrial CAN Bus Interface |
|---|---|
Use Scenario: Protecting LIN/CAN transceiver I/O pins from load dump and inductive switching transients in vehicle body control modules. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed directly at connector entry point to shunt surge energy before reaching transceiver input stage. Use Value: Limits transient voltage to ≤274 V, preventing latch-up or gate oxide damage in 5 V or 3.3 V transceivers while maintaining signal integrity. |
Use Scenario: Safeguarding RS-485/CAN FD physical layer nodes against EFT and surge in factory automation PLC backplanes. IC Role / Device Role / Timing Role: Low-inductance TVS mounted adjacent to bus connector to suppress common-mode surges without distorting differential signaling. Use Value: Clamps 600 W surges within 1 ns response time, preserving data integrity across 5 Mbps CAN FD links under ISO 7637-2 Pulse 5a conditions. |
| Consumer Power Adapter Input | Telecom DC Power Rail |
Use Scenario: Secondary-side overvoltage suppression in USB PD 3.0 adapters exposed to lightning-induced surges on 20 V output rails. IC Role / Device Role / Timing Role: Standoff-rated TVS placed between +20 V and GND to absorb repetitive 10/1000 μs transients from shared building wiring. Use Value: Withstands 1000+ surge events at 2.2 A IPPM while maintaining <1 μA leakage at 188 V, ensuring no standby power penalty. |
Use Scenario: Primary protection for -48 V telecom power distribution boards subjected to accidental battery reversal and hot-swap transients. IC Role / Device Role / Timing Role: Bidirectional clamp across supply rail to handle both positive and negative polarity faults without external polarity logic. Use Value: Symmetric clamping enables single-component solution for dual-polarity fault modes, reducing BOM count versus unidirectional pair. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ200CA | Same VWM (188 V), identical SMB package, but lower PPPM (600 W same), higher VC (290 V at 2.2 A) | Higher clamping voltage reduces margin for 3.3 V/5 V ICs; suitable where system withstand >290 V | Select SMBJ200CA only if board layout allows higher VC or if legacy design validation exists |
| 1.5KE200CA | Through-hole DO-15 package, same VWM/VC specs, but larger footprint and lower MSL rating (not reflow-compatible) | Not suitable for automated SMT production; requires manual assembly or wave soldering | Choose 1.5KE200CA only for prototyping or repair scenarios where SMB footprint is unavailable |
Compared with SMBJ200CA and 1.5KE200CA, SM6T200CAHE3_A/I offers superior thermal performance (RθJA = 100 °C/W vs. 120+ °C/W), AEC-Q101 qualification, and MSL Level 1 compliance-making it the preferred choice for high-reliability automotive and industrial SMT designs requiring long-term surge endurance.
Availability
SM6T200CAHE3_A/I is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial CAN bus nodes, telecom DC power rails, and consumer USB PD adapter protection requiring stable component supply and AEC-Q101 assurance.
Supply support for SM6T200CAHE3_A/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 high-reliability diodes, MOSFETs, and passive components for automotive, industrial, and computing markets.
The SM6T Series was engineered specifically for surface-mount transient suppression in space-constrained, high-surge environments-emphasizing low clamping ratio, AEC-Q101 compliance, and automated assembly readiness.
FAQ
What is the clamping voltage of SM6T200CAHE3_A/I at its rated peak pulse current?
The SM6T200CAHE3_A/I has a maximum clamping voltage (VC) of 274 V when subjected to a 10/1000 μs waveform at IPPM = 2.2 A. This value is measured per Figure 1 in Vishay Document 88385 and defines the upper voltage limit imposed on protected circuitry during surge events. The clamping behavior is symmetrical due to its bidirectional construction, and VC remains stable across temperature when mounted on the recommended 5.0 mm × 5.0 mm copper pads.
Is SM6T200CAHE3_A/I qualified for automotive applications?
Yes, SM6T200CAHE3_A/I is AEC-Q101 qualified, as confirmed by the "HE3" suffix and documentation in Vishay's SM6T datasheet (Rev. 09-Jan-2024, Doc. #88385). This qualification covers stress tests including temperature cycling, high-temperature reverse bias (HTRB), and ESD (HBM ≥8 kV). It is approved for use in engine compartments, ADAS sensors, and body control modules where junction temperatures reach +150 °C.
What does the "CA" suffix indicate in SM6T200CAHE3_A/I?
The "CA" suffix in SM6T200CAHE3_A/I explicitly denotes a bidirectional configuration, meaning the device provides symmetrical transient suppression for both positive and negative voltage excursions. Unlike unidirectional variants (e.g., SM6T200A), SM6T200CAHE3_A/I has no cathode marking and conducts identically in either direction-enabling simplified layout for AC-coupled or floating signal paths without polarity constraints.
What is the thermal resistance of SM6T200CAHE3_A/I under standard mounting conditions?
SM6T200CAHE3_A/I exhibits 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, as specified in the Vishay SM6T datasheet. This value assumes still air and defines the temperature rise above ambient per watt of steady-state power dissipation. For pulsed operation, transient thermal impedance must be evaluated using Figure 5 in Document 88385.
How does SM6T200CAHE3_A/I differ from the unidirectional SM6T200AHE3_A/I?
SM6T200CAHE3_A/I is bidirectional with symmetrical clamping in both polarities and no polarity marking, whereas SM6T200AHE3_A/I is unidirectional with a cathode band and conducts only in reverse bias. Their VWM (188 V), VBR (209–231 V), and PPPM (600 W) are identical, but SM6T200AHE3_A/I supports forward surge current (IFSM = 100 A) and requires correct orientation during placement-making SM6T200CAHE3_A/I preferable for differential or AC signal protection where polarity is undefined.
SM6T200CAHE3_A/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:
- 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 (SMBJ)
SM6T200CAHE3_A/I FAQ
1.How can I place an order for SM6T200CAHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SM6T200CAHE3_A/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 SM6T200CAHE3_A/I reliable?
The price and inventory of SM6T200CAHE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM6T200CAHE3_A/I is usually 5 days.
3.What payment methods are accepted for SM6T200CAHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM6T200CAHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM6T200CAHE3_A/I?
SM6T200CAHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM6T200CAHE3_A/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 SM6T200CAHE3_A/I?
For technical support, including SM6T200CAHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM6T200CAHE3_A/I requirements.
6.How does Aetrix verify that SM6T200CAHE3_A/I is sourced from the original manufacturer or authorized distributors?
All SM6T200CAHE3_A/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 SM6T200CAHE3_A/I meets industry standards.
7.What is the process for return or replacement of SM6T200CAHE3_A/I?
All SM6T200CAHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SM6T200CAHE3_A/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 SM6T200CAHE3_A/I part is unused and in its original packaging.
Return procedure for SM6T200CAHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM6T200CAHE3_A/I Tags
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