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Vishay General Semiconductor - Diodes Division SM15T100AHE3/57T
- Part No.:
- SM15T100AHE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SM15T100AHE3/57T.pdf
- Description:
- TVS DIODE 85.5VWM 137VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,802
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Product details
Overview
SM15T100AHE3/57T from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) in SMC (DO-214AB) package, rated for 100 V standoff voltage (VWM), 137 V clamping voltage (VC) at 11.0 A peak pulse current (IPPM), and 1500 W peak pulse power (10/1000 μs). 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 SM15T100AHE3/57T datasheet, SM15T100AHE3/57T pinout, SM15T100AHE3/57T application, or SM15T100AHE3/57T equivalent, key selection criteria include unidirectional polarity, AEC-Q101 qualification, 137 V clamping performance at 11 A, 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 clamping device that enters avalanche breakdown above its 100 V standoff voltage to limit transient overvoltage. Its glass-passivated junction ensures stable leakage (<1 μA at VWM) and robust surge handling up to 200 A IFSM (10 ms half-sine).
The device is designed for high-impedance source environments where system-level source impedance limits peak current within its 11.0 A IPPM rating under 10/1000 μs waveform. Failure mode under overstress is short-circuit, consistent with industrial safety requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 100 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 95.0 / 105 V - Breakdown occurs within this range at 1.0 mA test current, defining turn-on threshold |
| VC @ IPPM | 137 V at 11.0 A - Clamped voltage during 10/1000 μs transient; determines maximum stress on protected circuit |
| PPPM | 1500 W - Peak transient energy absorption capability under standard 10/1000 μs waveform |
| RθJA | 75 °C/W - Junction-to-ambient thermal resistance on recommended 8.0 mm × 8.0 mm pad layout |
| TJ max | +150 °C - Maximum allowable junction temperature; supports operation in under-hood automotive environments |
| AEC-Q101 | Qualified - Meets stress-test requirements for automotive electronic components per JESD22-A108 |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, low-profile, matte tin-plated leads solderable per J-STD-002 and JESD 22-B102. Cathode indicated by band marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias; connected to ground or low-side reference in unidirectional TVS configuration | Provides return path during clamping; must be routed with low-inductance trace to minimize voltage overshoot |
| Cathode | Current exit terminal in forward bias; connected to protected line (e.g., power rail or signal) | Acts as transient sink - all surge current flows from cathode to anode during avalanche conduction |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power (10/1000 μs) | Enables protection against severe lightning-induced surges and high-energy motor-switching transients without derating |
| Glass passivated chip junction | Ensures stable electrical parameters over time and temperature; reduces parameter drift vs. epoxy-passivated alternatives |
| Low inductance construction | Minimizes voltage overshoot during fast-rising transients (e.g., ESD or switching spikes), improving clamping fidelity |
| AEC-Q101 qualified (HE3 suffix) | Validates reliability for automotive applications including engine control units, body electronics, and ADAS sensor interfaces |
| MSL Level 1 (260 °C peak reflow) | Supports single-pass lead-free reflow assembly without moisture-related popcorning or delamination |
Applications
| Automotive Power Rail Protection | Industrial Motor Drive I/O Protection |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-connected ECUs from load-dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp positive-going surges above 100 V. Use Value: Limits rail voltage to ≤137 V during 11 A transients, preventing damage to downstream PMICs and microcontrollers. | Use Scenario: Shielding analog input channels of PLC modules from inductive kickback when controlling solenoids or contactors. IC Role / Device Role / Timing Role: Standoff-rated TVS on signal line to ground, absorbing 1500 W pulses without degradation. Use Value: Maintains signal integrity by clamping transients within 100 ns, avoiding false triggering or ADC saturation. |
| Telecom DC Power Interface | Consumer Appliance Control Board |
Use Scenario: Safeguarding PoE-powered Ethernet switches against lightning surges entering via DC input ports. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 48 V DC input, coordinated with upstream fuse and common-mode chokes. Use Value: Withstands repeated 10/1000 μs surges up to 1500 W while maintaining <1 μA leakage at 100 V, minimizing standby power loss. | Use Scenario: Protecting microcontroller GPIOs and relay drivers in smart HVAC controllers exposed to relay coil flyback. IC Role / Device Role / Timing Role: Localized TVS on each high-side switch output to suppress inductive turn-off spikes. Use Value: Prevents latch-up in MCU I/O pins by limiting transient voltage to 137 V at 11 A, enabling reliable long-term field operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ100A-E3/57T | Lower peak power (400 W), same VWM (100 V), higher VC (165 V at 2.4 A), SMA package (smaller thermal mass) | Not suitable for lightning-level threats; limited to lower-energy switching transients | Select only if system-level threat level is below 400 W and board space constraints prohibit SMC footprint |
| SMCJ100AHE3/57T | Higher peak power (1500 W), identical VWM/VC specs, same SMC package, but rated for 100 V VWM with tighter VBR tolerance (95–105 V vs. 95–105 V - same) | Functionally identical clamping behavior; differs only in JEDEC designation and minor packaging detail (no practical impact) | Drop-in alternative with identical electrical and mechanical performance; validated for same AEC-Q101 automotive use cases |
Compared with SMAJ100A-E3/57T, SM15T100AHE3/57T delivers 275 % more surge energy handling and tighter clamping; versus SMCJ100AHE3/57T, it offers identical protection performance but with confirmed AEC-Q101 qualification and documented automotive reliability testing.
Availability
SM15T100AHE3/57T is available at Aetrix Electronics and suitable for automotive power rail protection, industrial motor drive I/O protection, and telecom DC power interface applications requiring stable component supply, AEC-Q101 compliance, and 1500 W transient immunity.
Supply support for SM15T100AHE3/57T 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, TVS devices, and optoelectronics with emphasis on reliability, power handling, and automotive-grade qualification.
The SM15T Series is engineered specifically for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom infrastructure where 1500 W surge immunity and AEC-Q101 validation are mandatory.
FAQ
What is the clamping voltage of SM15T100AHE3/57T at its rated peak pulse current?
The SM15T100AHE3/57T has a maximum clamping voltage (VC) of 137 V when subjected to its specified peak pulse current (IPPM) of 11.0 A under the 10/1000 μs waveform. This value is measured across the device terminals during standardized surge testing and defines the upper voltage limit imposed on the protected circuit during transient events.
Is SM15T100AHE3/57T qualified for automotive applications?
Yes, SM15T100AHE3/57T is AEC-Q101 qualified, as confirmed by the "HE3" suffix in its part number and documented in Vishay's official datasheet (Document Number: 88380, Revision: 09-Jan-2024). This qualification validates its reliability for use in automotive electronic control units, body modules, and ADAS sensor interfaces.
What does the "57T" suffix indicate in SM15T100AHE3/57T?
The "57T" suffix denotes the preferred packaging format: 7-inch diameter plastic tape and reel, containing 850 units per reel. This format is optimized for high-speed automated SMT placement and is compatible with standard pick-and-place equipment used in volume electronics manufacturing.
How does SM15T100AHE3/57T differ from bidirectional TVS diodes like SM15T100CA?
SM15T100AHE3/57T is unidirectional and features polarity marking (cathode band); it conducts only during positive transients relative to its cathode. In contrast, SM15T100CA is bidirectional, symmetrical, and lacks polarity marking - suitable for AC lines or differential signal protection where both polarities require clamping.
What is the thermal resistance of SM15T100AHE3/57T under standard mounting conditions?
The SM15T100AHE3/57T has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on the recommended 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pad layout per terminal. This value assumes still air conditions and is critical for calculating safe power dissipation and junction temperature rise during sustained leakage or repetitive transients.
SM15T100AHE3/57T 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):
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCJ)
SM15T100AHE3/57T FAQ
1.How can I place an order for SM15T100AHE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SM15T100AHE3/57T 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 SM15T100AHE3/57T reliable?
The price and inventory of SM15T100AHE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM15T100AHE3/57T is usually 5 days.
3.What payment methods are accepted for SM15T100AHE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM15T100AHE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM15T100AHE3/57T?
SM15T100AHE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM15T100AHE3/57T 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 SM15T100AHE3/57T?
For technical support, including SM15T100AHE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM15T100AHE3/57T requirements.
6.How does Aetrix verify that SM15T100AHE3/57T is sourced from the original manufacturer or authorized distributors?
All SM15T100AHE3/57T 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 SM15T100AHE3/57T meets industry standards.
7.What is the process for return or replacement of SM15T100AHE3/57T?
All SM15T100AHE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SM15T100AHE3/57T, 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 SM15T100AHE3/57T part is unused and in its original packaging.
Return procedure for SM15T100AHE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM15T100AHE3/57T Tags
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