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Vishay General Semiconductor - Diodes Division SM15T200A-E3/9AT
- Part No.:
- SM15T200A-E3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SM15T200A-E3/9AT.pdf
- Description:
- TVS DIODE 171VWM 274VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:4,375
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Product details
Overview
SM15T200A-E3/9AT from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, rated for 1500 W peak pulse power (10/1000 μs), 274 V clamping voltage at 5.5 A peak pulse current, and 171 V stand-off voltage - designed to protect power rails and I/O lines in industrial motor drives and automotive ECUs against lightning-induced surges.
For engineers reviewing the SM15T200A-E3/9AT datasheet, SM15T200A-E3/9AT pinout, SM15T200A-E3/9AT application, or SM15T200A-E3/9AT equivalent, key selection criteria include verified clamping performance at rated IPPM, unidirectional polarity with cathode band marking, RoHS-compliant matte tin terminals, and AEC-Q101 qualification eligibility via HE3 suffix variants.
Technical Context
This TVS diode operates as a voltage-clamped shunt protector: under transient overvoltage exceeding 171 V (VWM), it avalanches at 190–210 V (VBR), limiting downstream voltage to ≤274 V at 5.5 A (10/1000 μs). Its low-inductance SMC package and glass-passivated junction enable fast response (<1 ns) and stable clamping across -65 °C to +150 °C junction temperature range.
It is rated for 200 A non-repetitive forward surge (IFSM, 10 ms half-sine), dissipates 6.5 W continuously at TA = 50 °C, and exhibits thermal resistance of 75 °C/W (junction-to-ambient) on standard 8.0 mm × 8.0 mm copper pads - confirming suitability for high-energy transient suppression without active cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000 μs) | 1500 W - sustains single lightning-surge events per IEC 61000-4-5 Level 4 without degradation |
| Stand-off Voltage (VWM) | 171 V - blocks normal operating voltage up to this level while remaining high-impedance |
| Breakdown Voltage (VBR) | 190–210 V at 1.0 mA - defines precise avalanche initiation threshold for predictable clamping onset |
| Clamping Voltage (VC) | 274 V at 5.5 A (10/1000 μs) - maximum voltage seen by protected circuit during rated surge |
| Package | SMC (DO-214AB) - surface-mount, MSL Level 1, 260 °C reflow compatible, 0.211 g unit weight |
| Polarity & Marking | Unidirectional with cathode band - ensures correct orientation in DC power rail protection |
| RoHS Compliance | E3 suffix - lead-free, halogen-free compliant per JEDEC J-STD-020 and JESD 201 Class 2 |
Pinout & Package
SM15T200A-E3/9AT uses the SMC (DO-214AB) package: molded epoxy case with matte tin-plated leads, 0.305" × 0.220" footprint, 0.126" max height, and cathode band marking on one end. Terminals are solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to system ground in typical unidirectional TVS configuration | Low-impedance path to reference plane during clamping; must be routed with minimal inductance |
| Cathode | Current exit terminal in forward bias; marked with band; connected to protected line (e.g., 24 V rail) | Defines polarity-sensitive placement - reverse connection disables protection function |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse rating | Enables single-event protection against IEC 61000-4-5 4 kV/2 Ω surge without derating on standard PCB pads |
| Glass-passivated junction | Ensures stable VBR and low leakage (<1 μA at VWM) over 150 °C max junction temperature and 10+ year field life |
| Low-inductance SMC package | Minimizes voltage overshoot during <1 ns transient rise times - critical for MOSFET gate and MCU I/O protection |
| AEC-Q101 qualification path | HE3/HM3 variants available - supports automotive body control modules and ADAS power supply designs requiring stress-tested reliability |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard 260 °C reflow without baking - reduces manufacturing overhead |
Applications
| Industrial Motor Drives | Automotive Engine Control Units |
|---|---|
Use Scenario: Protection of 24 V DC input stage against switching transients from contactor coils and regenerative braking feedback. IC Role / Device Role / Timing Role: Shunt-type transient suppressor placed between power rail and chassis ground, responding within nanoseconds to overvoltage events. Use Value: Clamps induced spikes to ≤274 V, preventing damage to upstream DC/DC converters and isolated CAN transceivers. |
Use Scenario: Input protection for ECU main power supply exposed to load dump (ISO 7637-2 Pulse 5a) and jump-start surges. IC Role / Device Role / Timing Role: Primary overvoltage clamp on battery feed line, coordinated with upstream fuses and downstream TVS arrays. Use Value: Withstands 200 A surge (IFSM) and maintains 171 V stand-off during cold-cranking, ensuring uninterrupted microcontroller operation. |
| Telecom Power Feeds | Renewable Energy Inverters |
Use Scenario: Surge protection on -48 V DC telecom rectifier outputs feeding remote radio units and baseband processors. IC Role / Device Role / Timing Role: Unidirectional TVS placed after bulk filter capacitors to absorb lightning-induced common-mode transients on power bus. Use Value: 274 V clamping ensures downstream PoE controllers and Ethernet PHYs remain below absolute maximum ratings during 10/1000 μs threats. |
Use Scenario: DC-link protection in solar string inverters where PV array surges couple into MPPT input stages. IC Role / Device Role / Timing Role: High-energy TVS mounted directly at DC input terminals to divert >10 kA surge currents away from IGBT gate drivers. Use Value: 1500 W rating and 75 °C/W RθJA allow reliable operation without heatsinking in sealed outdoor enclosures up to 70 °C ambient. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ200A (Microchip) | Same 200 V VWM, but lower 400 W PPPM rating and SMA package (higher RθJA = 110 °C/W) | Limited to lower-energy transients; unsuitable for IEC 61000-4-5 Level 4 without parallel devices | Select only for space-constrained designs where 1500 W capability is not required |
| 1.5KE200A (ON Semiconductor) | Same 200 V VWM and 1500 W rating, but DO-201AE axial package - incompatible with automated SMT assembly | Requires manual insertion or through-hole rework; not viable for high-volume SMT production | Choose only for legacy board repairs or prototyping where SMC footprint is unavailable |
Compared with SMAJ200A and 1.5KE200A, SM15T200A-E3/9AT delivers full 1500 W surge handling in an SMT-optimized SMC package with industry-leading thermal resistance (75 °C/W) and RoHS/E3 compliance - making it the preferred choice for new industrial and automotive designs requiring automated assembly and high-reliability surge immunity.
Availability
SM15T200A-E3/9AT is available at Aetrix Electronics and suitable for industrial motor drives, automotive engine control units, and telecom power feeds requiring stable component supply, long-term lifecycle support, and traceable RoHS-compliant sourcing.
Supply support for SM15T200A-E3/9AT 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, and protection devices with emphasis on high-reliability, high-power, and automotive-grade components.
The SM15T Series was developed specifically for robust transient suppression in harsh environments - targeting industrial automation, automotive power systems, and infrastructure equipment where failure due to voltage surges is unacceptable.
FAQ
What is the clamping voltage of SM15T200A-E3/9AT at its rated peak pulse current?
The SM15T200A-E3/9AT has a maximum clamping voltage (VC) of 274 V when subjected to a 5.5 A peak pulse current with a 10/1000 μs waveform. This value is measured per Figure 1 in Vishay's datasheet 88380 and defines the upper voltage limit imposed on protected circuits during standardized surge events - critical for ensuring downstream ICs remain within their absolute maximum ratings.
Is SM15T200A-E3/9AT suitable for automotive applications?
SM15T200A-E3/9AT itself is commercial-grade (E3 suffix), but Vishay offers AEC-Q101 qualified versions under HE3 and HM3 suffixes (e.g., SM15T200AHE3_A/I). The SM15T200A-E3/9AT shares identical electrical characteristics and SMC package with those qualified variants, enabling direct design-in for automotive prototypes before final qualification - though full AEC-Q101 compliance requires the HE3/HM3 part number.
What does the "-E3/9AT" suffix indicate in SM15T200A-E3/9AT?
The "E3" denotes RoHS-compliant, lead-free, halogen-free construction per JEDEC standards; "9AT" specifies packaging in 13-inch diameter plastic tape and reel, with 3500 units per reel. This format ensures compatibility with high-speed pick-and-place equipment and meets IPC/JEDEC moisture sensitivity Level 1 requirements - eliminating need for pre-baking prior to reflow soldering.
How does SM15T200A-E3/9AT compare to bidirectional TVS diodes like SM15T200CA?
SM15T200A-E3/9AT is unidirectional and features a cathode band for polarity-sensitive placement on DC lines; SM15T200CA is bidirectional with no polarity marking and symmetric clamping in both directions. The SM15T200A-E3/9AT is optimized for DC power rail protection, whereas SM15T200CA suits AC signal lines or differential buses where voltage polarity reverses - they are not interchangeable without circuit redesign.
What is the thermal resistance and maximum junction temperature of SM15T200A-E3/9AT?
SM15T200A-E3/9AT has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on 8.0 mm × 8.0 mm copper pads per terminal, and a maximum operating junction temperature (TJ) of +150 °C. These values confirm its ability to handle repetitive surges in enclosed industrial enclosures without forced air cooling - provided continuous power dissipation remains ≤6.5 W at TA = 50 °C.
SM15T200A-E3/9AT 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:
- 1
- Bidirectional Channels:
- -
- 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)
SM15T200A-E3/9AT FAQ
1.How can I place an order for SM15T200A-E3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SM15T200A-E3/9AT 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 SM15T200A-E3/9AT reliable?
The price and inventory of SM15T200A-E3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM15T200A-E3/9AT is usually 5 days.
3.What payment methods are accepted for SM15T200A-E3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM15T200A-E3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM15T200A-E3/9AT?
SM15T200A-E3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM15T200A-E3/9AT 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 SM15T200A-E3/9AT?
For technical support, including SM15T200A-E3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM15T200A-E3/9AT requirements.
6.How does Aetrix verify that SM15T200A-E3/9AT is sourced from the original manufacturer or authorized distributors?
All SM15T200A-E3/9AT 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 SM15T200A-E3/9AT meets industry standards.
7.What is the process for return or replacement of SM15T200A-E3/9AT?
All SM15T200A-E3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SM15T200A-E3/9AT, 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 SM15T200A-E3/9AT part is unused and in its original packaging.
Return procedure for SM15T200A-E3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM15T200A-E3/9AT Tags
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