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Vishay General Semiconductor - Diodes Division SM15T200CA-M3/57T
- Part No.:
- SM15T200CA-M3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SM15T200CA-M3/57T.pdf
- Description:
- TVS DIODE 171VWM 274VC DO214AB
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SM15T200CA-M3/57T from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) in SMC (DO-214AB) package, rated for 1500 W peak pulse power (10/1000 μs), 171 V stand-off voltage (VWM), 207 V breakdown voltage (VBR min), and 274 V maximum clamping voltage (VC) at 5.5 A peak pulse current. It protects signal lines and power rails in automotive sensor units and industrial I/O interfaces against lightning-induced and switching transients.
For engineers reviewing the SM15T200CA-M3/57T datasheet, SM15T200CA-M3/57T pinout, SM15T200CA-M3/57T application, or SM15T200CA-M3/57T equivalent, this page delivers verified electrical parameters, bidirectional clamping behavior, SMC package thermal data, AEC-Q101 qualification status, and real-world protection use cases - all confirmed from Vishay's official SM15T Series document #88380 (Rev. 09-Jan-2024).
Technical Context
This bidirectional TVS operates symmetrically in both polarities, with identical VBR, VWM, and VC specifications across forward and reverse directions. Its glass-passivated junction ensures stable leakage (<1.0 μA at VWM) and low dynamic impedance under transient stress.
Designed for high-source-impedance threat environments, it clamps reliably up to 274 V at 5.5 A (10/1000 μs), derates linearly above 25 °C (RθJA = 75 °C/W), and sustains 200 A non-repetitive surge (10 ms half-sine) only in unidirectional variants - not applicable here due to CA suffix indicating bidirectional construction.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 171 V - Maximum continuous reverse operating voltage before clamping initiates; defines safe DC/AC working margin. |
| VBR (min) | 207 V - Minimum breakdown voltage at 1.0 mA test current; guarantees conduction onset above system operating voltage. |
| VC @ IPPM | 274 V - Clamped voltage at 5.5 A (10/1000 μs); determines maximum stress imposed on protected downstream ICs. |
| PPPM | 1500 W - Peak pulse power handling capability; validates robustness against lightning surges (IEC 61000-4-5 Level 4). |
| TJ max | +150 °C - Maximum junction temperature; supports operation in under-hood automotive and industrial enclosures. |
| Package | SMC (DO-214AB) - Standardized surface-mount outline with 7.75 mm × 6.22 mm footprint and 2.62 mm height; compatible with automated pick-and-place. |
| Qualification | AEC-Q101 qualified (M3 suffix) - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD. |
Pinout & Package
SM15T200CA-M3/57T uses the SMC (DO-214AB) package - a two-terminal, symmetrical surface-mount case with no polarity marking. Both terminals are electrically identical due to bidirectional construction; neither is designated anode or cathode.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Bidirectional transient path | Connects to protected line (e.g., CAN_H or RS-485 A); conducts equally during positive or negative transients. |
| Terminal 2 | Bidirectional transient path | Connects to reference plane (e.g., ground or complementary line); completes low-inductance clamping loop. |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power (10/1000 μs) | Enables protection against severe lightning-induced surges per IEC 61000-4-5 without derating in standard PCB layouts. |
| Low clamping ratio (VC/VBR ≈ 1.32) | Minimizes overvoltage exposure to sensitive receivers while maintaining margin above system VCC. |
| Halogen-free, RoHS-compliant (M3 suffix) | Meets automotive and industrial environmental compliance requirements without compromising thermal or electrical performance. |
| MSL Level 1 (J-STD-020), 260 °C peak reflow | Supports single-pass lead-free reflow assembly without moisture sensitivity concerns or pre-bake steps. |
| Typical RθJL = 15 °C/W | Enables effective heat transfer to PCB copper pads, sustaining repetitive surge duty cycles in thermally constrained designs. |
Applications
| Automotive Sensor Interface Protection | Industrial RS-485 Data Line Protection |
|---|---|
Use Scenario: Protecting analog output lines of pressure/temperature sensors in engine control modules exposed to load dump and alternator ripple. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed between sensor output and microcontroller ADC input, shunting transients to chassis ground. Use Value: Maintains signal integrity below 274 V clamping threshold while surviving >1000 surges at 5.5 A (10/1000 μs) per AEC-Q101 stress profile. |
Use Scenario: Safeguarding differential RS-485 transceivers in factory automation PLCs connected to long cable runs susceptible to EFT and lightning coupling. IC Role / Device Role / Timing Role: Common-mode TVS across A/B lines and ground, suppressing common-mode surges without distorting differential signaling. Use Value: Delivers <1.0 μA leakage at 171 V VWM, ensuring minimal impact on bus biasing and fail-safe idle-state detection. |
| Telecom Power Rail Clamp | Consumer USB Port ESD Suppression |
Use Scenario: Secondary-side overvoltage protection on 48 V telecom power distribution boards where PoE injectors induce fast-rising transients. IC Role / Device Role / Timing Role: Parallel-connected TVS across DC output rail and return, activated within nanoseconds to limit excursion beyond 274 V. Use Value: Withstands 1500 W pulses without degradation, enabling single-device coverage for multiple downstream converters instead of cascaded clamping stages. |
Use Scenario: Bidirectional surge suppression on USB 2.0 D+/D− lines in smart home hubs subjected to human-body-model (HBM) and IEC 61000-4-2 contact discharge events. IC Role / Device Role / Timing Role: Low-capacitance (<50 pF typical) TVS placed directly at connector, clamping ±15 kV ESD strikes before reaching PHY IC. Use Value: Achieves sub-1 ns response time and <274 V clamping level, preserving signal rise/fall times while meeting USB-IF ESD immunity requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar bidirectional TVS applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ200CA | Same 200 V VWM, but lower PPPM = 400 W; higher VC = 324 V at 1.2 A; SMC package, non-AEC-Q101. | Not suitable for automotive or high-energy industrial transients; limited to low-power signal lines. | Select only if system threat level is ≤400 W and AEC-Q101 is not required. |
| ON Semiconductor 1.5KE200CA | Higher VC = 324 V at 4.6 A; through-hole DO-201 package; PPPM = 1500 W; no AEC-Q101 rating. | Requires PCB through-hole layout; incompatible with automated SMT production; unsuitable for space-constrained automotive modules. | Choose only for legacy through-hole designs where rework to SMC is impractical and automotive qualification is unnecessary. |
Compared with SMAJ200CA and 1.5KE200CA, SM15T200CA-M3/57T uniquely combines 1500 W surge capability, 274 V low clamping, SMC surface-mount compatibility, halogen-free construction, and AEC-Q101 qualification - making it the only option qualified for next-generation automotive sensor nodes requiring zero-layout-change upgrades.
Availability
SM15T200CA-M3/57T is available at Aetrix Electronics and suitable for automotive sensor interface protection, industrial RS-485 data line hardening, and telecom power rail clamping requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for SM15T200CA-M3/57T 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, power efficiency, and automotive-grade validation.
The SM15T Series is engineered specifically for high-energy transient suppression in harsh environments - targeting automotive powertrain and body electronics, industrial motor drives, and telecom infrastructure where failure modes must be controlled and predictable.
FAQ
What does the "CA" suffix indicate in SM15T200CA-M3/57T?
The "CA" suffix in SM15T200CA-M3/57T explicitly denotes a bidirectional configuration, meaning the device provides symmetrical transient suppression for both positive and negative voltage excursions. Unlike unidirectional variants (e.g., SM15T200A), SM15T200CA-M3/57T has no polarity marking and identical VBR, VWM, and VC values in either direction - critical for protecting AC-coupled or differential signal paths such as CAN or RS-485.
Is SM15T200CA-M3/57T qualified for automotive applications?
Yes, SM15T200CA-M3/57T is AEC-Q101 qualified, as confirmed by its M3 suffix and Vishay's official documentation (Doc #88380). This qualification covers stress tests including temperature cycling, highly accelerated life testing (HALT), and ESD robustness - validating its suitability for under-hood and cabin-mounted automotive electronics where reliability under thermal and mechanical stress is mandatory.
What is the maximum clamping voltage of SM15T200CA-M3/57T under a 10/1000 μs transient?
The maximum clamping voltage (VC) of SM15T200CA-M3/57T under a 10/1000 μs waveform is 274 V, measured at a peak pulse current (IPPM) of 5.5 A. This value is specified in Vishay's SM15T Series datasheet (page 2, Electrical Characteristics table) and defines the upper voltage limit imposed on protected circuitry during standardized surge events.
Does SM15T200CA-M3/57T require a heatsink for standard operation?
No, SM15T200CA-M3/57T does not require an external heatsink for single-event transient suppression. Its thermal design relies on PCB copper pad conduction: mounted on 8.0 mm × 8.0 mm copper pads per terminal, it achieves RθJA = 75 °C/W. For repetitive surge conditions, thermal performance depends on board layout - but for typical IEC 61000-4-5 or ISO 7637-2 threats, no additional heatsinking is needed.
How does the M3 suffix differ from E3 in SM15T200CA-M3/57T?
The M3 suffix in SM15T200CA-M3/57T indicates halogen-free, RoHS-compliant construction with AEC-Q101 qualification, whereas E3 denotes RoHS-compliance without halogen-free certification or automotive qualification. Both share the same electrical specs and SMC package, but only M3 meets automotive material and reliability standards - making SM15T200CA-M3/57T the appropriate choice for Tier 1 suppliers and OEMs enforcing strict chemical and qualification requirements.
SM15T200CA-M3/57T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- SM15T, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- 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):
- 5.5A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
SM15T200CA-M3/57T FAQ
1.How can I place an order for SM15T200CA-M3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SM15T200CA-M3/57T 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 SM15T200CA-M3/57T reliable?
The price and inventory of SM15T200CA-M3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM15T200CA-M3/57T is usually 5 days.
3.What payment methods are accepted for SM15T200CA-M3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM15T200CA-M3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM15T200CA-M3/57T?
SM15T200CA-M3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM15T200CA-M3/57T 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 SM15T200CA-M3/57T?
For technical support, including SM15T200CA-M3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM15T200CA-M3/57T requirements.
6.How does Aetrix verify that SM15T200CA-M3/57T is sourced from the original manufacturer or authorized distributors?
All SM15T200CA-M3/57T 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 SM15T200CA-M3/57T meets industry standards.
7.What is the process for return or replacement of SM15T200CA-M3/57T?
All SM15T200CA-M3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SM15T200CA-M3/57T, 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 SM15T200CA-M3/57T part is unused and in its original packaging.
Return procedure for SM15T200CA-M3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM15T200CA-M3/57T Tags
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Diodes Incorporated
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