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Vishay General Semiconductor - Diodes Division SM15T100A-E3/9AT
- Part No.:
- SM15T100A-E3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SM15T100A-E3/9AT.pdf
- Description:
- TVS DIODE 85.5VWM 137VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,463
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Product details
Overview
SM15T100A-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), 137 V clamping voltage at 11.0 A IPPM, and 85.5 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 SM15T100A-E3/9AT datasheet, SM15T100A-E3/9AT pinout, SM15T100A-E3/9AT application, or SM15T100A-E3/9AT equivalent, key selection criteria include unidirectional polarity, 100 V nominal breakdown (95–105 V range), RoHS-compliant matte tin plating, MSL Level 1 rating, and AEC-Q101 qualification availability via HE3 suffix variants.
Technical Context
This TVS diode operates as a clamping device in reverse-biased configuration, with cathode-band marking indicating polarity. Its glass-passivated junction ensures stable breakdown behavior under repetitive surge stress, and low-inductance SMC package minimizes voltage overshoot during fast transients.
Designed for high-energy threat suppression, it delivers 1500 W peak pulse power per 10/1000 μs waveform while maintaining 137 V clamping at 11.0 A, with thermal resistance RθJA = 75 °C/W and maximum junction temperature of 150 °C. It meets JESD201 Class 2 whisker resistance and UL 94 V-0 flammability requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000 μs) | 1500 W - sustains lightning-level surges without degradation when mounted on 8 mm × 8 mm copper pads |
| Stand-off Voltage (VWM) | 85.5 V - maximum continuous reverse voltage before significant leakage (≤1 μA) |
| Breakdown Voltage (VBR) | 95.0–105 V at 1 mA - defines reliable conduction onset under transient overvoltage |
| Clamping Voltage (VC) | 137 V at 11.0 A IPPM - limits downstream circuit voltage during worst-case surge |
| Package | SMC (DO-214AB) - surface-mount, low-profile, automated-placement compatible case with 7.75 mm × 6.22 mm footprint |
| Junction Temperature Range | −65 °C to +150 °C - supports operation in under-hood automotive and industrial ambient environments |
| RoHS Compliance | E3 suffix - lead-free, halogen-free compliant per JEDEC standards, suitable for commercial-grade production |
Pinout & Package
SM15T100A-E3/9AT uses the SMC (DO-214AB) package: molded epoxy case with matte tin-plated leads, 7.75 mm × 6.22 mm body, 2.06 mm height, and cathode band marking on one end. Leads meet J-STD-002 solderability and JESD22-B102 mechanical robustness requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry (reverse-biased operation) | Connected to protected line's lower-potential side; enables clamping when voltage exceeds VWM |
| Cathode | Reverse-biased terminal (marked with band) | Connected to system ground or higher-potential rail; defines unidirectional conduction path during surge |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power | Enables protection against IEC 61000-4-5 Level 4 (4 kV) surges without derating on standard PCB layouts |
| Glass passivated junction | Ensures stable VBR over lifetime and immunity to humidity-induced parameter drift |
| Low inductance SMC package | Reduces voltage overshoot during <100 ns transients, critical for MOSFET gate protection |
| MSL Level 1 (260 °C peak) | Supports standard lead-free reflow without preconditioning or baking |
| AEC-Q101 qualification option | HE3/HM3 variants available for automotive powertrain and body control modules requiring stress-tested reliability |
Applications
| Automotive Power Distribution | Industrial Motor Drive Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs and junction boxes from load-dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed across input rails upstream of DC-DC converters. Use Value: Clamps 137 V at 11 A to prevent >100 V stress on 80 V-rated input FETs and regulators. |
Use Scenario: Safeguarding PLC I/O modules connected to solenoid valves and contactors subject to inductive kickback. IC Role / Device Role / Timing Role: Standoff-rated TVS on 24 V digital output lines to absorb 600 V/10 A switching spikes. Use Value: Limits transient voltage to 137 V within 100 ns, preserving optocoupler isolation and microcontroller GPIO integrity. |
| Telecom Power Supply Input | Consumer Appliance Control Board |
Use Scenario: Front-end surge protection for AC/DC adapters and PoE injectors exposed to lightning-induced surges on Ethernet or mains lines. IC Role / Device Role / Timing Role: Primary-stage TVS on secondary-side DC bus feeding isolated DC-DC stages. Use Value: Absorbs 1500 W pulses without failure, maintaining ≤137 V clamping to protect downstream 100 V-rated capacitors and controllers. |
Use Scenario: Protecting MCU-based washing machine control boards from relay coil transients and ESD on user interface lines. IC Role / Device Role / Timing Role: Localized TVS on motor driver supply rails and sensor analog inputs. Use Value: Provides 85.5 V standoff margin above 72 V nominal supply, ensuring no false triggering during normal operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ100A-E3/52T (Vishay) | 600 W PPPM, SMB package, same VWM/VBR range but lower surge capacity | Suitable only for lower-energy threats (IEC 61000-4-4); not recommended for lightning-prone interfaces | Select when board space is constrained and surge energy is limited to ≤600 W |
| P6SMB100A (ON Semiconductor) | 600 W PPPM, identical SMB package, 137 V VC at 4.4 A IPPM, non-AEC-Q101 | Lacks automotive qualification and higher IPPM headroom; lower thermal robustness (RθJA ≈ 85 °C/W) | Acceptable for cost-sensitive consumer designs where AEC-Q101 and 1500 W capability are not required |
Compared with SM15T100A-E3/9AT, SMBJ100A-E3/52T offers smaller footprint but sacrifices 60% peak power handling, while P6SMB100A provides functional equivalence at lower surge ratings and no automotive qualification-making SM15T100A-E3/9AT the sole choice for 1500 W, AEC-Q101-capable, and high-reliability industrial deployments.
Availability
SM15T100A-E3/9AT is available at Aetrix Electronics and suitable for automotive power distribution, industrial motor drive protection, and telecom power supply input requiring stable component supply, long-term lifecycle support, and RoHS-compliant manufacturing.
Supply support for SM15T100A-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 reliability, ruggedness, and application-specific performance.
The SM15T Series is designed for high-energy transient suppression in harsh environments-including automotive, industrial, and telecom infrastructure-where 1500 W surge immunity and stable clamping under thermal stress are mandatory.
FAQ
What is the clamping voltage of SM15T100A-E3/9AT at its rated peak pulse current?
The SM15T100A-E3/9AT has a maximum clamping voltage (VC) of 137 V when subjected to its specified peak pulse current (IPPM) of 11.0 A using the 10/1000 μs waveform. This value is measured under standardized test conditions with the device mounted on 8.0 mm × 8.0 mm copper pads per terminal, ensuring realistic PCB-level performance validation.
Is SM15T100A-E3/9AT suitable for automotive applications?
SM15T100A-E3/9AT itself is RoHS-compliant commercial-grade (E3 suffix), but Vishay offers AEC-Q101 qualified versions under HE3/HM3 suffixes (e.g., SM15T100AHE3_A/I). For automotive use, specify the HE3 variant; SM15T100A-E3/9AT is appropriate for non-automotive industrial or telecom systems requiring high-surge protection without qualification mandates.
What does the "-E3/9AT" suffix indicate in SM15T100A-E3/9AT?
The "E3" denotes RoHS-compliant, commercial-grade construction with matte tin-plated leads; "9AT" specifies packaging in 13-inch diameter plastic tape and reel, with a base quantity of 3500 units. This format supports high-volume SMT assembly and ensures compatibility with standard pick-and-place equipment.
How does SM15T100A-E3/9AT differ from bidirectional TVS diodes like SM15T100CA?
SM15T100A-E3/9AT is unidirectional and features a cathode band marking; it conducts only during reverse overvoltage events. In contrast, SM15T100CA is bidirectional, symmetrical in both polarities, and lacks polarity marking. The unidirectional version offers tighter leakage control below VWM and is preferred for DC rail protection, whereas bidirectional types suit AC or floating signal lines.
What is the thermal resistance and maximum power dissipation of SM15T100A-E3/9AT?
SM15T100A-E3/9AT has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W and a steady-state power dissipation (PD) rating of 6.5 W at TA = 50 °C on an infinite heatsink. These values define safe continuous operation limits and inform layout decisions such as copper pour area and airflow requirements in thermally constrained enclosures.
SM15T100A-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):
- 85.5V
- Voltage - Breakdown (Min):
- 95V
- Voltage - Clamping (Max) @ Ipp:
- 137V
- Current - Peak Pulse (10/1000µs):
- 11A
- 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)
SM15T100A-E3/9AT FAQ
1.How can I place an order for SM15T100A-E3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SM15T100A-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 SM15T100A-E3/9AT reliable?
The price and inventory of SM15T100A-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 SM15T100A-E3/9AT is usually 5 days.
3.What payment methods are accepted for SM15T100A-E3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM15T100A-E3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM15T100A-E3/9AT?
SM15T100A-E3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM15T100A-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 SM15T100A-E3/9AT?
For technical support, including SM15T100A-E3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM15T100A-E3/9AT requirements.
6.How does Aetrix verify that SM15T100A-E3/9AT is sourced from the original manufacturer or authorized distributors?
All SM15T100A-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 SM15T100A-E3/9AT meets industry standards.
7.What is the process for return or replacement of SM15T100A-E3/9AT?
All SM15T100A-E3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SM15T100A-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 SM15T100A-E3/9AT part is unused and in its original packaging.
Return procedure for SM15T100A-E3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM15T100A-E3/9AT Tags
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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