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Vishay General Semiconductor - Diodes Division SM15T200CAHM3/I
- Part No.:
- SM15T200CAHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SM15T200CAHM3/I.pdf
- Description:
- TVS DIODE 171VWM 274VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,003
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Product details
Overview
SM15T200CAHM3/I from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, rated for 1500 W peak pulse power (10/1000 μs), 200 V standoff voltage (VWM), and 274 V clamping voltage (VC) at 5.5 A IPPM. It provides robust protection against lightning-induced and switching transients on automotive sensor signal lines and industrial I/O interfaces.
For engineers reviewing the SM15T200CAHM3/I datasheet, SM15T200CAHM3/I pinout, SM15T200CAHM3/I application, or SM15T200CAHM3/I equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, halogen-free RoHS compliance, and verified 1500 W surge handling per JEDEC-standard waveform.
Technical Context
This device operates as a voltage-clamped crowbar during overvoltage events, with symmetrical breakdown behavior in both directions due to its bidirectional construction. Its glass-passivated junction ensures stable leakage (<1 μA at VWM) and low thermal resistance (RθJL = 15 °C/W).
The SM15T200CAHM3/I is designed for high-impedance source environments where transient current is naturally limited - typical use cases include protecting CAN bus nodes, LIN transceivers, and analog sensor inputs without requiring external current-limiting resistors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 200 V - maximum continuous reverse operating voltage before clamping begins; defines safe operating window for 24 V automotive systems. |
| VBR (min/max) | 220 V / 242 V - breakdown occurs within this range at 1 mA test current; ensures predictable turn-on margin above VWM. |
| VC @ IPPM | 274 V at 5.5 A (10/1000 μs) - clamping voltage limits downstream IC stress; enables compatibility with 300 V-rated components. |
| PPPM | 1500 W - peak pulse power rating confirms suitability for IEC 61000-4-5 Level 4 (4 kV) surge testing. |
| TJ max | +150 °C - junction temperature limit supports under-hood automotive deployment with no derating up to 125 °C ambient. |
| Package | SMC (DO-214AB) - industry-standard surface-mount outline with 7.75 mm × 6.22 mm footprint and 2.62 mm height; compatible with automated pick-and-place. |
Pinout & Package
SMC (DO-214AB) package with two terminals: symmetrical bidirectional configuration - no polarity marking required. Mounting uses standard 8.0 mm × 8.0 mm copper pads per terminal per JEDEC guidelines.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Both terminals function identically; clamps voltage in either direction when V > VBR - eliminates orientation concerns during layout. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional 1500 W surge capability | Enables single-device protection of AC-coupled or differential signal lines (e.g., RS-485, CAN FD) without polarity constraints. |
| AEC-Q101 qualified & halogen-free | Validated for automotive-grade reliability (HTOL, TC, UHAST); meets OEM material restrictions including VW 80101 and GMW3172. |
| Low clamping ratio (VC/VBR ≈ 1.20) | Minimizes voltage overshoot during fast transients - critical for safeguarding 3.3 V/5 V microcontrollers interfacing with protected lines. |
| MSL Level 1, 260 °C reflow compatible | Supports lead-free assembly without pre-baking; eliminates moisture-related popcorning risk in high-volume SMT production. |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting analog output lines of pressure/temperature sensors in engine control modules exposed to load-dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Voltage-clamping TVS placed directly at connector entry point to shunt surge energy before reaching ADC input or signal conditioner. Use Value: Prevents latch-up or permanent damage to 12-bit SAR ADCs by limiting transient voltage to ≤274 V while maintaining <1 μA leakage at 200 V DC bias. |
Use Scenario: Shielding 24 V PLC digital input channels from inductive kickback generated by solenoid valve switching. IC Role / Device Role / Timing Role: Fast-response transient suppressor located between field wiring and optocoupler input stage. Use Value: Absorbs 1500 W surges without degradation, enabling >100,000 switching cycles while preserving isolation barrier integrity. |
| Telecom Line Interface | Consumer Power Adapter ESD |
Use Scenario: Safeguarding Ethernet PHY magnetics secondary side against lightning-induced common-mode surges on PoE-powered devices. IC Role / Device Role / Timing Role: Bidirectional clamping element across differential pairs upstream of transformer center taps. Use Value: Symmetrical clamping maintains signal integrity during 10/1000 μs surges up to 4 kV (IEC 61000-4-5), avoiding DC offset skew. |
Use Scenario: Secondary-side surge suppression on USB-C PD adapter output rails subjected to user-handling ESD and cable discharge events. IC Role / Device Role / Timing Role: Final-stage TVS mounted adjacent to output connector to clamp fast-rising transients before reaching connected devices. Use Value: Halogen-free, RoHS-compliant construction meets UL 62368-1 end-product requirements while delivering 274 V clamping at 5.5 A. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| Littelfuse SMAJ200CA | Same 200 V VWM and bidirectional SMC package, but rated for 400 W PPPM (not 1500 W); higher VC = 324 V at 4.6 A. | Only suitable for lower-energy threats (e.g., IEC 61000-4-2 ESD), not lightning-level surges. | Select only if system-level testing confirms <400 W transient exposure and layout allows higher clamping voltage. |
| ON Semiconductor 1.5KE200CA | Through-hole DO-201 package (not SMC), same 200 V VWM and 1500 W rating, but higher RθJA (60 °C/W vs. 75 °C/W) and no AEC-Q101 qualification. | Requires PCB redesign for through-hole mounting; unsuitable for automotive under-hood use due to qualification gap. | Consider only for cost-sensitive industrial prototypes where surface-mount constraint and automotive qualification are not required. |
Compared with SMAJ200CA and 1.5KE200CA, the SM15T200CAHM3/I uniquely combines 1500 W surge capacity, SMC surface-mount compatibility, AEC-Q101 qualification, and halogen-free compliance - making it the sole option for production automotive electronics requiring all four attributes.
Availability
SM15T200CAHM3/I is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, telecom line interface boards, and consumer power adapters requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for SM15T200CAHM3/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 diodes, rectifiers, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SM15T Series is engineered specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where failure modes must be controlled and AEC-Q101 validation is mandatory.
FAQ
What is the clamping voltage of SM15T200CAHM3/I at its rated peak pulse current?
The SM15T200CAHM3/I has a maximum clamping voltage (VC) of 274 V when subjected to a 10/1000 μs waveform at 5.5 A peak pulse current (IPPM). This value is measured per Figure 1 in Vishay document 88380 and reflects worst-case performance under standardized surge conditions - critical for ensuring downstream ICs remain within absolute maximum ratings.
Is SM15T200CAHM3/I suitable for automotive applications?
Yes, SM15T200CAHM3/I is AEC-Q101 qualified and carries the HM3 suffix indicating halogen-free, RoHS-compliant construction validated for automotive use. It meets stress tests including high-temperature operating life (HTOL), temperature cycling (TC), and unbiased highly accelerated stress test (UHAST), making it appropriate for engine control units, body electronics, and ADAS sensor interfaces.
How does the bidirectional design of SM15T200CAHM3/I affect PCB layout?
The bidirectional nature of SM15T200CAHM3/I eliminates polarity marking - both terminals are functionally identical, so no cathode band orientation check is needed during placement. This simplifies layout, reduces assembly errors, and enables symmetric routing on differential lines like CAN or RS-485 without concern for forward/reverse connection.
What is the thermal resistance of SM15T200CAHM3/I from junction to lead?
The SM15T200CAHM3/I has a typical thermal resistance from junction to lead (RθJL) of 15 °C/W, as specified in the Thermal Characteristics table of Vishay document 88380. This low value supports efficient heat transfer to PCB copper pads, enabling sustained operation at elevated ambient temperatures without external heatsinking.
Does SM15T200CAHM3/I meet JEDEC moisture sensitivity level requirements?
Yes, SM15T200CAHM3/I meets MSL Level 1 per J-STD-020, with a maximum peak reflow temperature of 260 °C. This allows direct placement into lead-free reflow ovens without baking or dry-pack requirements - streamlining manufacturing for high-reliability industrial and automotive PCB assemblies.
SM15T200CAHM3/I 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 (SMC)
SM15T200CAHM3/I FAQ
1.How can I place an order for SM15T200CAHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SM15T200CAHM3/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 SM15T200CAHM3/I reliable?
The price and inventory of SM15T200CAHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM15T200CAHM3/I is usually 5 days.
3.What payment methods are accepted for SM15T200CAHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM15T200CAHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM15T200CAHM3/I?
SM15T200CAHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM15T200CAHM3/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 SM15T200CAHM3/I?
For technical support, including SM15T200CAHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM15T200CAHM3/I requirements.
6.How does Aetrix verify that SM15T200CAHM3/I is sourced from the original manufacturer or authorized distributors?
All SM15T200CAHM3/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 SM15T200CAHM3/I meets industry standards.
7.What is the process for return or replacement of SM15T200CAHM3/I?
All SM15T200CAHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with SM15T200CAHM3/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 SM15T200CAHM3/I part is unused and in its original packaging.
Return procedure for SM15T200CAHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM15T200CAHM3/I Tags
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