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Vishay General Semiconductor - Diodes Division SM15T200CAHE3/57T
- Part No.:
- SM15T200CAHE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SM15T200CAHE3/57T.pdf
- Description:
- TVS DIODE 171VWM 274VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,215
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Product details
Overview
SM15T200CAHE3/57T from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) in SMC (DO-214AB) package, rated for 1500 W peak pulse power (10/1000 μs), 171 V standoff voltage (VWM), and 274 V clamping voltage (VC) at 5.5 A IPPM. It provides robust protection for automotive-grade sensor signal lines and I/O interfaces against lightning-induced and inductive-switching transients.
For engineers reviewing the SM15T200CAHE3/57T datasheet, SM15T200CAHE3/57T pinout, SM15T200CAHE3/57T application, or SM15T200CAHE3/57T equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, 171 V reverse standoff, low-inductance SMC package, and compatibility with high-impedance transient sources in automotive ECUs and industrial control modules.
Technical Context
The SM15T200CAHE3/57T employs a glass-passivated silicon junction optimized for fast response to transient overvoltages, with symmetrical breakdown behavior in both directions due to its bidirectional CA construction. Its thermal resistance (RθJA = 75 °C/W) and junction temperature limit (TJ max = 150 °C) support operation under sustained ambient conditions up to +125 °C when mounted on recommended 8.0 mm × 8.0 mm copper pads.
Designed for high-impedance threat environments, it clamps at 274 V under 10/1000 μs waveform at 5.5 A, delivering stable protection without requiring series impedance matching. The device fails short-circuit under overstress - a predictable, system-safe failure mode confirmed per IEC 61000-4-5 compliance context.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 171 V - maximum continuous reverse operating voltage before leakage exceeds 1 μA; defines safe working range for 24 V automotive bus and industrial I/O lines. |
| VBR (min/max) | 190 V / 210 V - measured at 1 mA IT; ensures reliable triggering above normal operating transients while avoiding false trips. |
| VC @ IPPM | 274 V @ 5.5 A (10/1000 μs) - clamping voltage limits downstream IC stress during surge events; enables use with 300 V-rated components. |
| PPPM | 1500 W - peak pulse power handling capacity for standardized lightning-surge waveforms; meets IEC 61000-4-5 Level 4 requirements. |
| TJ max | +150 °C - maximum junction temperature; supports under-hood automotive placement with derated power above 25 °C ambient. |
| Package | SMC (DO-214AB) - surface-mount package with 7.75 mm × 6.22 mm footprint and 2.62 mm height; compatible with automated pick-and-place and reflow. |
| AEC-Q101 | Qualified - validated for automotive reliability including temperature cycling, HTRB, and ESD; suffix HE3 denotes AEC-Q101 grade. |
Pinout & Package
SM15T200CAHE3/57T uses an SMC (DO-214AB) package with two terminals and no polarity marking - consistent with bidirectional TVS construction. The device has symmetrical electrical behavior across both terminals.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (bidirectional) | Either terminal may serve as anode or cathode depending on instantaneous polarity of transient; no fixed polarity designation. |
| Terminal 2 | Anode/Cathode (bidirectional) | Electrically identical to Terminal 1; enables placement without orientation constraints on PCB layout. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or differential signal lines (e.g., CAN FD, LIN, RS-485) without external polarity management. |
| 1500 W peak pulse power | Supports IEC 61000-4-5 4 kV/2 Ω surge testing with margin; eliminates need for cascaded protection stages in cost-sensitive designs. |
| AEC-Q101 qualification | Validates reliability for automotive applications including engine control units, ADAS sensor interfaces, and body electronics modules. |
| Low clamping ratio (VC/VBR ≈ 1.35) | Minimizes overvoltage exposure to protected ICs; improves system-level immunity compared to higher-ratio TVS diodes. |
| MSL Level 1 (260 °C peak) | Permits standard lead-free reflow without moisture sensitivity concerns; eliminates bake-out requirement prior to assembly. |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting analog output lines of pressure/temperature sensors in engine bay environments exposed to load-dump and alternator ripple. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed directly at connector entry point to shunt transients before reaching ADC input or signal conditioner. Use Value: Maintains signal integrity under 100 V/ms dV/dt transients while surviving 150 °C under-hood temperatures per AEC-Q101 test profile. |
Use Scenario: Guarding RS-485 transceiver data lines in programmable logic controllers subjected to 4 kV EFT bursts. IC Role / Device Role / Timing Role: Fast-response TVS suppressing common-mode surges on twisted-pair bus lines without distorting differential signaling. Use Value: Clamps within 1 ns to limit bus voltage excursion to ≤274 V, preserving transceiver SOA and enabling >1 Mbps data rates. |
| Telecom Power Feeds | Consumer Appliance Motor Control |
Use Scenario: Safeguarding PoE-powered Ethernet switch ports against lightning-induced surges entering via outdoor cabling. IC Role / Device Role / Timing Role: Primary line-side TVS on DC feed path, coordinated with secondary MOV and gas discharge tube for staged protection. Use Value: Handles 1500 W peak pulse energy without degradation, enabling compact front-end design meeting UL 60950-1 surge withstand requirements. |
Use Scenario: Shielding microcontroller GPIOs driving brushed DC motors in washing machine control boards from commutation spikes. IC Role / Device Role / Timing Role: Localized TVS at motor driver output stage to absorb inductive kickback before it couples into logic circuitry. Use Value: Prevents latch-up and reset events during 200 A IFSM-rated switching events; RoHS-compliant matte tin plating ensures solder joint reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ200CA | Lower PPPM (400 W), same VWM (171 V), larger SMA package (DO-214AC), non-AEC-Q101 qualified. | Limited to commercial-grade consumer/industrial applications; insufficient for automotive surge testing. | Select SMAJ200CA only for cost-sensitive, non-automotive designs where 400 W pulse rating suffices. |
| SMCJ200CA | Same PPPM (1500 W), identical VWM/VC specs, SMC package, but base P/N-E3 (commercial) not AEC-Q101 qualified. | Requires separate qualification effort for automotive use; lacks HE3 suffix traceability and test documentation. | Choose SMCJ200CA if AEC-Q101 is not mandated and supply chain prefers standard SMCJ family sourcing. |
Compared with SMAJ200CA and SMCJ200CA, SM15T200CAHE3/57T uniquely combines AEC-Q101 qualification, 1500 W pulse rating, and SMC footprint in a single RoHS-compliant, halogen-free (HE3) variant - making it the only drop-in solution for production automotive designs requiring zero qualification overhead.
Availability
SM15T200CAHE3/57T is available at Aetrix Electronics and suitable for automotive ECU protection, industrial PLC I/O modules, and telecom power-over-Ethernet interfaces requiring stable component supply, long-term lifecycle assurance, and AEC-Q101 traceability.
Supply support for SM15T200CAHE3/57T 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 high-reliability diodes, rectifiers, and protection devices for automotive, industrial, and computing markets.
The SM15T Series was engineered specifically for high-power transient suppression in space-constrained, high-temperature environments - targeting automotive sensor nodes, industrial fieldbus interfaces, and telecom infrastructure where AEC-Q101 compliance and 1500 W surge handling are mandatory.
FAQ
What is the clamping voltage of SM15T200CAHE3/57T at its rated peak pulse current?
The SM15T200CAHE3/57T clamps to 274 V at 5.5 A peak pulse current (IPPM) under the standard 10/1000 μs waveform. This value is measured per Figure 1 in Vishay document 88380 and defines the maximum voltage seen by downstream circuitry during surge events. The clamping performance remains stable across the full operating temperature range (-65 °C to +150 °C).
Is SM15T200CAHE3/57T suitable for automotive applications?
Yes, SM15T200CAHE3/57T is AEC-Q101 qualified (denoted by HE3 suffix) and tested for temperature cycling, high-temperature reverse bias, and ESD per automotive reliability standards. It is explicitly designed for under-hood and chassis-mounted applications such as engine control units, ADAS camera modules, and body control modules where transient immunity and long-term stability are critical.
What does the "CA" suffix mean in SM15T200CAHE3/57T?
The "CA" suffix in SM15T200CAHE3/57T indicates a bidirectional configuration - meaning the device provides symmetrical transient suppression in both polarities without polarity marking on the package. This differs from unidirectional "A" variants, which require correct cathode orientation and exhibit forward conduction in one direction.
What is the standoff voltage (VWM) of SM15T200CAHE3/57T and how is it used in circuit design?
The standoff voltage (VWM) of SM15T200CAHE3/57T is 171 V - the maximum DC or RMS voltage that can be continuously applied without exceeding 1 μA leakage current. In design, VWM must exceed the system's maximum normal operating voltage (e.g., 24 V automotive bus with 100 V load dump margin) while remaining below the device's breakdown voltage (190–210 V) to ensure reliable transient response without false triggering.
Does SM15T200CAHE3/57T have a defined failure mode under overstress conditions?
Yes, SM15T200CAHE3/57T fails in a short-circuit mode under overstress conditions - a documented and predictable behavior per Vishay's application notes. This allows upstream fusing or current-limiting circuits to safely isolate the fault, preventing fire hazard or uncontrolled system behavior. The short-circuit failure mode is verified through accelerated life testing and surge endurance validation.
SM15T200CAHE3/57T 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:
- 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):
- 5.5A
- Power - Peak Pulse:
- 1500W (1.5kW)
- 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-214AB (SMCJ)
SM15T200CAHE3/57T FAQ
1.How can I place an order for SM15T200CAHE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SM15T200CAHE3/57T 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 SM15T200CAHE3/57T reliable?
The price and inventory of SM15T200CAHE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM15T200CAHE3/57T is usually 5 days.
3.What payment methods are accepted for SM15T200CAHE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM15T200CAHE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM15T200CAHE3/57T?
SM15T200CAHE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM15T200CAHE3/57T 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 SM15T200CAHE3/57T?
For technical support, including SM15T200CAHE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM15T200CAHE3/57T requirements.
6.How does Aetrix verify that SM15T200CAHE3/57T is sourced from the original manufacturer or authorized distributors?
All SM15T200CAHE3/57T 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 SM15T200CAHE3/57T meets industry standards.
7.What is the process for return or replacement of SM15T200CAHE3/57T?
All SM15T200CAHE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SM15T200CAHE3/57T, 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 SM15T200CAHE3/57T part is unused and in its original packaging.
Return procedure for SM15T200CAHE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM15T200CAHE3/57T Tags
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