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Vishay General Semiconductor - Diodes Division SM15T200AHM3/I
- Part No.:
- SM15T200AHM3/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SM15T200AHM3/I.pdf
- Description:
- TVS DIODE 171VWM 274VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,839
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Product details
Overview
SM15T200AHM3/I from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) in SMC (DO-214AB) package, rated for 1500 W peak pulse power (10/1000 μs), 274 V maximum clamping voltage at 5.5 A IPPM, and 171 V stand-off voltage. It protects MOSFETs, ICs, and sensor signal lines against lightning-induced and inductive-switching transients in automotive and industrial power electronics.
For engineers reviewing the SM15T200AHM3/I datasheet, SM15T200AHM3/I pinout, SM15T200AHM3/I application, or SM15T200AHM3/I equivalent, key selection criteria include verified clamping performance at 5.5 A, halogen-free RoHS-compliant construction, AEC-Q101 qualification, and compatibility with automated SMT placement on 8.0 mm × 8.0 mm copper pads.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-band polarity marking. Its breakdown voltage is specified at 190–210 V (min/max) under 1 mA test current, and it maintains stable clamping up to 274 V at 5.5 A peak pulse current using the standardized 10/1000 μs waveform.
Thermal design relies on low junction-to-lead resistance (15 °C/W) and derating above 25 °C ambient per Fig. 2; failure mode under overstress is short-circuit, consistent with IEC 61000-4-5 surge protection requirements for Level 4 immunity testing.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 171 V - Maximum continuous reverse operating voltage before leakage exceeds 1 μA; defines safe DC bias margin for 200 V rail protection. |
| VBR (min/max) | 190 V / 210 V - Verified breakdown threshold at 1 mA; ensures predictable turn-on during overvoltage events. |
| VC @ IPPM | 274 V - Clamped voltage at 5.5 A (10/1000 μs); determines protected circuit's maximum transient exposure level. |
| PPPM | 1500 W - Peak pulse power handling capability; supports IEC 61000-4-5 4 kV/2 Ω surge testing. |
| TJ max | +150 °C - Maximum junction temperature; enables operation in under-hood automotive environments. |
| Package | SMC (DO-214AB) - Industry-standard surface-mount outline with 7.75 mm × 6.22 mm footprint and 2.62 mm height. |
Pinout & Package
SM15T200AHM3/I uses the SMC (DO-214AB) package: molded plastic body with matte tin-plated leads, MSL Level 1 rating, and 260 °C lead-free reflow compatibility. Polarity is marked by a cathode band on the case end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection in unidirectional configuration | Connected to ground or low-voltage reference; carries full surge current during clamping. |
| Cathode | High-side connection; marked by band | Connected to protected line (e.g., 200 V bus); initiates avalanche conduction when VAK > VBR. |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power (10/1000 μs) | Enables robust protection against lightning surges (IEC 61000-4-5) without thermal runaway on standard PCB copper pads. |
| Glass passivated chip junction | Ensures long-term reliability and stable VBR drift < ±5 % over 1000 hrs at TJ = 125 °C. |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive powertrain and chassis applications requiring zero defect rates and extended temperature cycling. |
| Halogen-free, RoHS-compliant | Meets EU Directive 2011/65/EU and IPC-1752A material declaration requirements for green manufacturing. |
Applications
| Automotive Power Distribution | Industrial Motor Drive Inputs |
|---|---|
Use Scenario: Protection of 24 V/48 V battery-fed ECUs and gate drivers against load-dump and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between high-side switch output and chassis ground. Use Value: Clamps 120 V load-dump spikes to ≤274 V within 1 ns, preventing MOSFET avalanche failure and ensuring ASIL-B compliance. | Use Scenario: Surge suppression on AC input rectifier outputs feeding variable-frequency drives. IC Role / Device Role / Timing Role: Standoff-rated TVS across DC bus rails to absorb switching energy from IGBT snubbers. Use Value: Handles repetitive 5.5 A pulses at 10/1000 μs without parameter shift, extending capacitor lifetime by limiting voltage overshoot. |
| Telecom Power Supply Outputs | Automotive Sensor Signal Lines |
Use Scenario: Secondary-side overvoltage protection on isolated 48 V telecom PSUs exposed to induced lightning surges. IC Role / Device Role / Timing Role: Clamp device mounted directly at DC-DC converter output connector. Use Value: Limits transient excursion to 274 V while maintaining <1 μA leakage at 171 V nominal, preserving efficiency and regulation accuracy. | Use Scenario: CAN/LIN bus line protection in ADAS camera modules subjected to ESD and cable discharge events. IC Role / Device Role / Timing Role: Low-capacitance unidirectional TVS on signal path between transceiver and microcontroller. Use Value: Provides 274 V clamping with <10 pF junction capacitance (typ.) at 0 V bias, avoiding signal integrity degradation at 5 Mbps. |
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-E3/57T | 600 W PPPM, 324 V VC @ 1.85 A, SMA package (smaller thermal mass) | Limited to lower-energy transients; unsuitable for IEC 61000-4-5 Level 4 testing | Select only for space-constrained consumer-grade designs where 1500 W rating is not required. |
| SMCJ200A-M3/57T | 1500 W PPPM, identical VC and VWM, but non-AEC-Q101, halogen-free commercial grade | Lacks automotive qualification; not approved for under-hood deployment per OEM specifications | Use for industrial control panels or telecom infrastructure where AEC-Q101 is not mandated. |
Compared with SM15T200AHM3/I, SMAJ200A-E3/57T offers reduced surge capacity and higher clamping voltage in a smaller package, while SMCJ200A-M3/57T matches power rating but omits automotive qualification-making SM15T200AHM3/I the sole choice for AEC-Q101–mandated 200 V rail protection.
Availability
SM15T200AHM3/I is available at Aetrix Electronics and suitable for automotive power distribution, industrial motor drive inputs, and telecom power supply outputs requiring stable component supply, long-lifecycle support, and traceable halogen-free sourcing.
Supply support for SM15T200AHM3/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, and protection devices with emphasis on reliability, power handling, and automotive qualification.
The SM15T Series was designed specifically for high-energy transient suppression in harsh environments, targeting AEC-Q101–compliant automotive systems and industrial equipment exposed to lightning and inductive switching surges.
FAQ
What is the clamping voltage of SM15T200AHM3/I at its rated peak pulse current?
The SM15T200AHM3/I has a maximum clamping voltage (VC) of 274 V when subjected to its rated peak pulse current of 5.5 A using the 10/1000 μs waveform. This value is measured under standardized test conditions per JEDEC standards and defines the upper voltage limit imposed on protected circuitry during surge events. The SM15T200AHM3/I maintains this clamping performance across its operational temperature range from -65 °C to +150 °C.
Is SM15T200AHM3/I qualified for automotive applications?
Yes, SM15T200AHM3/I is AEC-Q101 qualified, as confirmed by the "HM3" suffix in its ordering code, indicating halogen-free, RoHS-compliant construction and full automotive stress testing including temperature cycling, humidity bias HAST, and mechanical shock. This qualification makes SM15T200AHM3/I suitable for use in engine control units, battery management systems, and ADAS power supplies where zero-defect reliability is mandatory.
What is the standoff voltage rating of SM15T200AHM3/I, and how does it relate to system design?
The SM15T200AHM3/I has a standoff voltage (VWM) of 171 V, meaning it remains in high-impedance state below this DC or RMS voltage level, with reverse leakage limited to ≤1 μA. In system design, this allows direct placement across 200 V nominal DC buses while providing ≥15 % margin above operating voltage-critical for avoiding false triggering during normal operation or ripple-induced excursions.
Does SM15T200AHM3/I have a bidirectional variant, and how does it differ?
No, SM15T200AHM3/I is strictly unidirectional, indicated by the "A" suffix and cathode-band marking. Bidirectional variants use the "CA" suffix (e.g., SM15T200CA) and lack polarity marking. The SM15T200AHM3/I cannot be substituted with a bidirectional part without circuit redesign, as its anode must connect to ground and cathode to the protected line-reversing polarity would prevent proper clamping function.
What PCB layout guidance applies to SM15T200AHM3/I for optimal thermal and electrical performance?
For optimal performance, SM15T200AHM3/I must be mounted on minimum 8.0 mm × 8.0 mm copper pads per terminal, as specified in the datasheet's derating curves. Traces to the device should be short and wide to minimize inductance, and thermal vias under pads are recommended to enhance heat dissipation. The SM15T200AHM3/I's RθJL of 15 °C/W assumes this pad layout; deviation reduces safe operating area and may cause premature thermal failure during repetitive surges.
SM15T200AHM3/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:
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMC)
SM15T200AHM3/I FAQ
1.How can I place an order for SM15T200AHM3/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SM15T200AHM3/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 SM15T200AHM3/I reliable?
The price and inventory of SM15T200AHM3/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM15T200AHM3/I is usually 5 days.
3.What payment methods are accepted for SM15T200AHM3/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM15T200AHM3/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM15T200AHM3/I?
SM15T200AHM3/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM15T200AHM3/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 SM15T200AHM3/I?
For technical support, including SM15T200AHM3/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM15T200AHM3/I requirements.
6.How does Aetrix verify that SM15T200AHM3/I is sourced from the original manufacturer or authorized distributors?
All SM15T200AHM3/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 SM15T200AHM3/I meets industry standards.
7.What is the process for return or replacement of SM15T200AHM3/I?
All SM15T200AHM3/I units undergo pre-shipment inspection (PSI). If there is an issue with SM15T200AHM3/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 SM15T200AHM3/I part is unused and in its original packaging.
Return procedure for SM15T200AHM3/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM15T200AHM3/I Tags
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Diodes Incorporated
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