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Vishay General Semiconductor - Diodes Division SM15T200AHE3/9AT
- Part No.:
- SM15T200AHE3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SM15T200AHE3/9AT.pdf
- Description:
- TVS DIODE 171VWM 274VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,708
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Product details
Overview
SM15T200AHE3/9AT from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, rated for 200 V standoff voltage (VWM), 210 V minimum breakdown voltage (VBR), 274 V maximum clamping voltage (VC) at 5.5 A IPPM, and 1500 W peak pulse power (10/1000 μs). It protects power rails and I/O lines in automotive ECUs against lightning-induced surges and inductive switching transients.
For engineers reviewing the SM15T200AHE3/9AT datasheet, SM15T200AHE3/9AT pinout, SM15T200AHE3/9AT application, or SM15T200AHE3/9AT equivalent, key selection criteria include clamping performance under 10/1000 μs threat waveforms, AEC-Q101 qualification status, thermal resistance (RθJA = 75 °C/W), 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, leveraging glass-passivated junction technology for stable avalanche behavior. Its 1500 W peak pulse rating is validated per 10/1000 μs waveform with derating above TA = 25 °C, and it exhibits low inductance suitable for fast-rising transients.
The device is AEC-Q101 qualified (indicated by HE3 suffix), RoHS-compliant, and rated for TJ = –65 °C to +150 °C operation. Thermal resistance from junction-to-lead is 15 °C/W, enabling effective heat transfer to PCB copper when mounted per recommended pad layout.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 171 V - Maximum continuous reverse voltage before clamping begins; defines operating rail margin for 200 V nominal systems. |
| VBR (Breakdown Voltage) | 190–210 V at IT = 1.0 mA - Confirmed avalanche onset range; ensures predictable turn-on during overvoltage events. |
| VC (Clamping Voltage) | 274 V at IPPM = 5.5 A (10/1000 μs) - Peak voltage seen by protected circuit during worst-case surge; critical for downstream component survivability. |
| PPPM (Peak Pulse Power) | 1500 W - Sustains standardized lightning-surge energy without failure; validated on 8.0 mm × 8.0 mm copper pads. |
| RθJA | 75 °C/W - Junction-to-ambient thermal resistance; determines temperature rise under DC power dissipation (PD = 6.5 W). |
| TJ max. | +150 °C - Maximum junction temperature; supports operation in under-hood automotive environments. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, matte tin-plated leads, MSL Level 1 (260 °C peak reflow), UL 94 V-0 molding compound.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to lower-potential side of protected line. | Defines conduction path during surge clamping; must be routed to ground or return plane with minimal inductance. |
| Cathode | Current exit terminal in forward bias; marked with band; connected to higher-potential line (e.g., 200 V rail). | Identifies polarity for correct installation; reversal causes open-circuit failure mode instead of clamping. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive electronics per stress test requirements; enables use in engine control, ADAS, and body modules without additional qualification. |
| Glass-passivated junction | Ensures stable, repeatable avalanche characteristics over lifetime and temperature; eliminates parameter drift from moisture or contamination. |
| Low-inductance SMC package | Minimizes voltage overshoot during fast transients (<10 ns rise time); critical for protecting high-speed MOSFET gates and microcontroller I/O. |
| 1500 W peak pulse capability | Withstands IEC 61000-4-5 Level 4 (4 kV) surge events on 2 Ω source impedance when properly laid out. |
Applications
| Automotive Power Rail Protection | Industrial Motor Drive I/O Protection |
|---|---|
Use Scenario: 24 V/48 V battery-supplied ECU power input subjected to load-dump and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between battery rail and DC-DC converter input. Use Value: Clamps to ≤274 V during 5.5 A surge, preventing damage to upstream protection FETs and downstream regulators. |
Use Scenario: Digital I/O lines connecting PLC controller to solenoid valve drivers exposed to coil-switching kickback. IC Role / Device Role / Timing Role: Standoff-protection element on 24 V digital output channel. Use Value: Limits induced voltage spikes to <274 V within 10/1000 μs, preserving optocoupler CTR and isolator lifetime. |
| Telecom DC Power Feeds | Renewable Energy Inverter DC Link |
Use Scenario: -48 V telecom rectifier output feeding remote radio units via long cable runs susceptible to lightning coupling. IC Role / Device Role / Timing Role: Primary surge suppression stage at rectifier output before bulk capacitance. Use Value: Absorbs 1500 W surge energy while maintaining VWM = 171 V margin above nominal -48 V system. |
Use Scenario: DC link between PV array and inverter where capacitor banks experience switching transients from IGBT commutation. IC Role / Device Role / Timing Role: Parallel clamping device across DC bus capacitors. Use Value: Suppresses voltage overshoot beyond 200 V rating, reducing stress on film capacitors and gate drivers. |
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 SMAJ200A | Same VWM (171 V), slightly higher VC (288 V @ 5.2 A), non-AEC-Q101 rated, RθJA = 80 °C/W. | Approved for industrial/commercial use only; not qualified for automotive under-hood deployment. | Select when AEC-Q101 compliance is unnecessary and cost sensitivity outweighs thermal margin. |
| ON Semiconductor 1.5SMC200A | Identical VWM/VBR/VC ratings, same SMC package, AEC-Q101 qualified (suffix AEC), RθJA = 77 °C/W. | Drop-in replacement in automotive designs; identical thermal and electrical specs; different tape-and-reel packaging code. | Preferred for second-source assurance in AEC-Q101 programs where Vishay supply continuity is constrained. |
Compared with SM15T200AHE3/9AT, SMAJ200A offers lower cost but lacks automotive qualification and has reduced thermal efficiency, while 1.5SMC200A delivers identical performance and qualification with alternate logistics support-making it the strongest functional alternative for automotive OEMs.
Availability
SM15T200AHE3/9AT is available at Aetrix Electronics and suitable for automotive electronic control units, industrial motor drives, telecom power systems, and renewable energy inverters requiring stable component supply with AEC-Q101 assurance and SMT-compatible packaging.
Supply support for SM15T200AHE3/9AT 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, MOSFETs, and protection devices with emphasis on reliability, power handling, and automotive-grade qualification.
The SM15T Series is designed specifically for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom applications where 1500 W surge immunity and AEC-Q101 compliance are mandatory.
FAQ
What is the clamping voltage of SM15T200AHE3/9AT under standard surge conditions?
The SM15T200AHE3/9AT has a maximum clamping voltage (VC) of 274 V when subjected to a 10/1000 μs waveform at IPPM = 5.5 A. This value is measured with the device mounted on 8.0 mm × 8.0 mm copper pads per JEDEC standards and defines the upper voltage limit imposed on protected circuitry during surge events.
Is SM15T200AHE3/9AT qualified for automotive applications?
Yes, SM15T200AHE3/9AT is AEC-Q101 qualified, as confirmed by the "HE3" suffix in its part number. This qualification covers stress tests including temperature cycling, humidity bias, and mechanical shock, making SM15T200AHE3/9AT suitable for under-hood and chassis-mounted automotive electronics.
What does the "9AT" suffix indicate in SM15T200AHE3/9AT?
The "9AT" suffix denotes the preferred packaging configuration: 13-inch diameter plastic tape and reel, with a base quantity of 3500 units. This format supports high-volume automated SMT assembly and is distinct from the "57T" (7-inch reel, 850 units) option used in lower-volume or prototyping scenarios.
How does SM15T200AHE3/9AT differ from bidirectional variants like SM15T200CA?
SM15T200AHE3/9AT is unidirectional with cathode-band polarity marking and conducts only in reverse breakdown; SM15T200CA is bidirectional, symmetrical in both directions, and has no polarity marking. The unidirectional version provides tighter VWM/VBR tolerance and lower leakage, while the bidirectional variant suits AC-coupled or floating signal lines.
What is the maximum operating temperature for SM15T200AHE3/9AT?
The SM15T200AHE3/9AT has a maximum junction temperature (TJ max.) of +150 °C and an operating junction/storage temperature range of –65 °C to +150 °C. This rating supports deployment in high-temperature automotive and industrial environments when thermal design adheres to the specified pad layout and derating curves.
SM15T200AHE3/9AT 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:
- 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 (SMCJ)
SM15T200AHE3/9AT FAQ
1.How can I place an order for SM15T200AHE3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SM15T200AHE3/9AT 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 SM15T200AHE3/9AT reliable?
The price and inventory of SM15T200AHE3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM15T200AHE3/9AT is usually 5 days.
3.What payment methods are accepted for SM15T200AHE3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM15T200AHE3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM15T200AHE3/9AT?
SM15T200AHE3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM15T200AHE3/9AT 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 SM15T200AHE3/9AT?
For technical support, including SM15T200AHE3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM15T200AHE3/9AT requirements.
6.How does Aetrix verify that SM15T200AHE3/9AT is sourced from the original manufacturer or authorized distributors?
All SM15T200AHE3/9AT 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 SM15T200AHE3/9AT meets industry standards.
7.What is the process for return or replacement of SM15T200AHE3/9AT?
All SM15T200AHE3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SM15T200AHE3/9AT, 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 SM15T200AHE3/9AT part is unused and in its original packaging.
Return procedure for SM15T200AHE3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM15T200AHE3/9AT Tags
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