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Vishay General Semiconductor - Diodes Division SM15T100A-M3/57T
- Part No.:
- SM15T100A-M3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SM15T100A-M3/57T.pdf
- Description:
- TVS DIODE 85.5VWM 137VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,819
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Product details
Overview
SM15T100A-M3/57T 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), 137 V clamping voltage at 11.0 A IPPM, and 85.5 V stand-off voltage - used to protect MOSFETs, ICs, and sensor signal lines against lightning-induced and inductive-switching transients in automotive and industrial power supplies.
For engineers reviewing the SM15T100A-M3/57T datasheet, SM15T100A-M3/57T pinout, SM15T100A-M3/57T application, or SM15T100A-M3/57T equivalent, key selection criteria include verified clamping performance at 11 A, unidirectional polarity with cathode band marking, halogen-free RoHS compliance (M3 suffix), and SMC package thermal resistance of 15 °C/W junction-to-lead.
Technical Context
The SM15T100A-M3/57T employs a glass-passivated silicon junction optimized for low-inductance transient suppression. Its 10/1000 μs waveform response delivers 137 V clamping at 11.0 A peak pulse current, with thermal resistance RθJL = 15 °C/W enabling reliable operation up to TJ = 150 °C.
Designed for high-impedance source environments, it operates within a 85.5 V reverse stand-off range and exhibits ≤1.0 μA leakage at VWM. The device fails short-circuit under overstress, per IEC 61000-4-5 Level 4 threat modeling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000 μs) | 1500 W - sustains lightning surge energy without degradation when mounted on 8.0 mm × 8.0 mm copper pads |
| Stand-off Voltage (VWM) | 85.5 V - maximum continuous reverse voltage before significant leakage; sets operating margin below breakdown |
| Breakdown Voltage (VBR) | 95.0–105 V at 1.0 mA - defines threshold where avalanche conduction begins; ensures predictable turn-on |
| Clamping Voltage (VC) | 137 V at 11.0 A IPPM - limits transient voltage seen by protected downstream circuitry during surge events |
| Peak Pulse Current (IPPM) | 11.0 A (10/1000 μs) - maximum non-repetitive surge current the device safely clamps without failure |
| Junction Temperature Range | −65 °C to +150 °C - supports under-hood automotive and industrial ambient conditions with full derating |
| Package | SMC (DO-214AB) - surface-mount footprint compatible with automated placement; meets UL 94 V-0 flammability |
Pinout & Package
SM15T100A-M3/57T uses the SMC (DO-214AB) package: molded plastic case with matte tin-plated leads, 0.305–0.320 inch length, 0.220–0.246 inch width, and cathode band marking on the anode side. Mounting requires 0.31″ × 0.31″ (8.0 mm × 8.0 mm) copper pads per terminal per JEDEC standards.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; connected to system ground or low-side reference | Provides return path during transient clamping; must be routed with low-inductance trace to minimize voltage overshoot |
| Cathode (banded end) | Current exit point in reverse bias; connected to protected line (e.g., 24 V rail or sensor input) | Defines polarity-sensitive connection - reversal causes permanent failure; band aligns with PCB silkscreen cathode indicator |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power | Enables protection against IEC 61000-4-5 Level 4 (4 kV/2 Ω) surges without derating in standard PCB layouts |
| Glass-passivated junction | Ensures stable VBR over temperature and lifetime; eliminates moisture-related parameter drift in humid environments |
| Low clamping ratio (VC/VBR ≈ 1.37) | Minimizes overvoltage stress on protected ICs - critical for 100 V-rated MOSFETs and analog front-ends |
| Halogen-free, RoHS-compliant (M3 suffix) | Meets automotive OEM material compliance requirements (e.g., GMW3172, Ford WSS-M99P9999-A1) without compromising thermal performance |
| MSL Level 1 (260 °C peak) | Supports lead-free reflow without popcorn effect or delamination; eliminates pre-bake requirement in SMT lines |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
Use Scenario: 24 V battery-supplied ECUs exposed to load-dump and ISO 7637-2 pulse 5a transients. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and chassis ground to clamp surges above 85.5 V. Use Value: Limits rail voltage to ≤137 V during 11 A transients, preventing damage to 36 V-rated DC-DC controllers and CAN transceivers. |
Use Scenario: Analog output lines from pressure/temperature sensors in factory automation PLC modules. IC Role / Device Role / Timing Role: Point-of-entry TVS on 4–20 mA or 0–10 V signal traces before ADC input stage. Use Value: Clamps ESD and motor-switching noise to <137 V while maintaining ≤1.0 μA leakage at 24 V nominal, preserving signal integrity. |
| Telecom DC Power Input Protection | Consumer Appliance Motor Drive Protection |
Use Scenario: −48 V telecom rectifier outputs feeding base station RF amplifiers. IC Role / Device Role / Timing Role: Unidirectional TVS referenced to negative rail to suppress positive-going transients on supply line. Use Value: Withstands 1500 W surges while holding clamping voltage below −40 V absolute rating of GaN FET drivers. |
Use Scenario: Brushed DC motor H-bridge outputs in smart home appliances subject to inductive kickback. IC Role / Device Role / Timing Role: TVS across motor terminals to absorb flyback energy during PWM switching. Use Value: 137 V clamping prevents gate oxide rupture in 100 V logic-level MOSFETs; 150 °C TJ rating supports enclosed thermal environments. |
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 (Bourns) | Lower peak power (600 W), same 100 V VWM, SMC-compatible but SMB package (smaller pad area) | Limited to lower-energy threats (IEC 61000-4-4); unsuitable for lightning-level 1500 W surges | Select only if board space constraints prevent SMC footprint and surge threat level is ≤600 W |
| P6SMB100A (Littelfuse) | Identical 1500 W rating and 100 V VWM, but commercial-grade (non-halogen-free) E3 suffix; no M3 option | Not compliant with halogen-free mandates in automotive Tier 1 BOMs or EU eco-design directives | Acceptable for industrial non-automotive use where halogen content is unrestricted |
Compared with SMBJ100A and P6SMB100A, SM15T100A-M3/57T uniquely combines 1500 W surge capability, halogen-free RoHS compliance, and SMC thermal performance (RθJL = 15 °C/W), making it the only choice for AEC-Q101-aligned automotive power protection requiring both high energy handling and material compliance.
Availability
SM15T100A-M3/57T is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface design, and telecom DC input conditioning requiring stable component supply across multi-year production cycles.
Supply support for SM15T100A-M3/57T 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 designs and manufactures discrete semiconductors including diodes, rectifiers, and TVS devices, with global manufacturing and testing facilities focused on reliability and automotive qualification.
The SM15T Series was developed specifically for high-energy transient suppression in harsh-environment applications - emphasizing robust clamping, low inductance, and AEC-Q101 readiness for automotive and industrial power systems.
FAQ
What is the clamping voltage of SM15T100A-M3/57T at its rated peak pulse current?
The SM15T100A-M3/57T has a maximum clamping voltage (VC) of 137 V at 11.0 A peak pulse current (IPPM) under the standard 10/1000 μs waveform. This value is measured with the device mounted on 0.31″ × 0.31″ copper pads and represents the upper voltage limit imposed on protected circuitry during surge events. The SM15T100A-M3/57T maintains this clamping performance across its full operating temperature range.
Is SM15T100A-M3/57T suitable for automotive applications requiring AEC-Q101 qualification?
No - SM15T100A-M3/57T carries the M3 suffix, indicating halogen-free RoHS compliance and commercial-grade qualification. For AEC-Q101 qualification, the correct part is SM15T100AHM3_A/H (with HM3_X suffix). The SM15T100A-M3/57T is not tested or certified to AEC-Q101; its datasheet specifies only commercial temperature and reliability screening.
What does the "M3" suffix mean in SM15T100A-M3/57T?
The "M3" suffix in SM15T100A-M3/57T denotes halogen-free, RoHS-compliant construction with matte tin-plated leads meeting J-STD-002 solderability and JESD 22-B102 whisker resistance (Class 2). It distinguishes the part from E3 (RoHS-compliant but not halogen-free) and HM3 (AEC-Q101 qualified + halogen-free) variants. The SM15T100A-M3/57T is intended for commercial and industrial applications with strict material content requirements.
Can SM15T100A-M3/57T be used in bidirectional configurations?
No - SM15T100A-M3/57T is a unidirectional TVS, indicated by the "A" suffix (not "CA"). Bidirectional operation requires the CA-suffixed variant (e.g., SM15T100CA). Using SM15T100A-M3/57T in reverse-biased configurations will cause catastrophic failure due to forward conduction during negative transients. Polarity must be observed: cathode band connects to the protected line.
What is the thermal resistance from junction to lead (RθJL) for SM15T100A-M3/57T?
The SM15T100A-M3/57T has a typical thermal resistance of 15 °C/W from junction to lead (RθJL), measured under standard mounting conditions. This value enables effective heat transfer to the PCB copper pads and supports continuous power dissipation up to 6.5 W at TA = 50 °C. The RθJL value is critical for calculating junction temperature rise during repetitive transient events or elevated ambient conditions.
SM15T100A-M3/57T 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:
- 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-M3/57T FAQ
1.How can I place an order for SM15T100A-M3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SM15T100A-M3/57T 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 SM15T100A-M3/57T reliable?
The price and inventory of SM15T100A-M3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SM15T100A-M3/57T is usually 5 days.
3.What payment methods are accepted for SM15T100A-M3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SM15T100A-M3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SM15T100A-M3/57T?
SM15T100A-M3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SM15T100A-M3/57T 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 SM15T100A-M3/57T?
For technical support, including SM15T100A-M3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SM15T100A-M3/57T requirements.
6.How does Aetrix verify that SM15T100A-M3/57T is sourced from the original manufacturer or authorized distributors?
All SM15T100A-M3/57T 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 SM15T100A-M3/57T meets industry standards.
7.What is the process for return or replacement of SM15T100A-M3/57T?
All SM15T100A-M3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SM15T100A-M3/57T, 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 SM15T100A-M3/57T part is unused and in its original packaging.
Return procedure for SM15T100A-M3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SM15T100A-M3/57T Tags
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