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Vishay General Semiconductor - Diodes Division 1.5SMC11A-M3/57T
- Part No.:
- 1.5SMC11A-M3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
1.5SMC11A-M3/57T.pdf
- Description:
- TVS DIODE 9.4VWM 15.6VC SMC
- Quantity:
- Payment:
- Shipping:
Inventory:9,756
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Product details
Overview
1.5SMC11A-M3/57T from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection with 1500 W peak pulse power (10/1000 μs), 15.6 V clamping voltage at 96.2 A peak pulse current, and 9.40 V stand-off voltage - deployed across power supply rails and signal lines in automotive ECUs and industrial motor drives.
For engineers reviewing the 1.5SMC11A-M3/57T datasheet, 1.5SMC11A-M3/57T pinout, 1.5SMC11A-M3/57T application, or 1.5SMC11A-M3/57T equivalent, this page delivers verified electrical parameters, thermal derating behavior, polarity marking convention, halogen-free RoHS compliance status, and AEC-Q101 qualification path for automotive-grade deployment.
Technical Context
The 1.5SMC11A-M3/57T operates as a unidirectional avalanche diode with glass-passivated junction, responding to transients in sub-nanosecond timeframes and clamping voltages within ±5% tolerance across its specified test current range. Its 10/1000 μs waveform rating reflects standardized surge immunity testing per IEC 61000-4-5.
Thermal performance is defined by RθJA = 75 °C/W (on recommended 8.0 mm × 8.0 mm copper pads) and RθJL = 15 °C/W, enabling predictable junction temperature rise under repetitive surge conditions up to 0.01% duty cycle. The cathode band marking aligns with JEDEC DO-214AB mechanical orientation standards.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Peak Pulse Power (10/1000 μs) | 1500 W - sustains single high-energy surges typical of ISO 7637-2 Load Dump or IEC 61000-4-5 Level 4 events |
| Stand-off Voltage (VWM) | 9.40 V - maximum continuous reverse voltage before leakage exceeds 5 μA; sets minimum operating rail margin |
| Breakdown Voltage (VBR @ 1 mA) | 10.5–11.6 V - guaranteed avalanche initiation window defining clamping onset precision |
| Clamping Voltage (VC @ 96.2 A) | 15.6 V - maximum voltage seen by protected circuit during full-rated surge; defines downstream IC survivability |
| Peak Pulse Current (IPPM) | 96.2 A - peak transient current handled without failure under standard 10/1000 μs waveform |
| Junction Temperature Range | −65 °C to +150 °C - supports operation in under-hood automotive and industrial ambient extremes |
| Package | SMC (DO-214AB) - surface-mount footprint with 8.0 mm × 8.0 mm thermal pad requirement for rated power dissipation |
Pinout & Package
Package: SMC (DO-214AB), molded plastic case with matte tin-plated leads, UL 94 V-0 rated compound, MSL level 1 (260 °C reflow peak).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Surge current sink node | Connected to protected line; conducts during overvoltage to shunt energy to ground or lower-potential rail |
| Anode | Reference potential node | Typically tied to system ground or low-side return; completes conduction path during transient |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power (10/1000 μs) | Enables robust protection against severe automotive load dump and lightning-induced surges without derating |
| Halogen-free, RoHS-compliant (M3 suffix) | Meets EU Directive 2011/65/EU and IPC-1752A material declaration requirements for green manufacturing |
| AEC-Q101 qualified variant available | Supports automotive qualification path via HM3 suffix; base M3 version shares identical die and construction |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients, improving clamping accuracy for sensitive logic interfaces |
| Fast response time (<1 ns) | Activates before most semiconductor damage thresholds are exceeded, preserving MOSFET gate oxides and MCU I/O cells |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Guarding |
|---|---|
Use Scenario: Protecting 12 V battery-fed microcontroller power inputs in engine control units exposed to ISO 7637-2 pulse 5a (load dump). IC Role / Device Role / Timing Role: Unidirectional TVS placed between VCC and GND to clamp transients above 15.6 V while remaining non-conductive below 9.40 V. Use Value: Prevents latch-up or permanent damage to 3.3 V/5 V logic supplies during 120 V, 400 ms load dump events. |
Use Scenario: Shielding analog output lines (e.g., 4–20 mA current loop) from ESD and inductive switching noise in factory automation PLC modules. IC Role / Device Role / Timing Role: TVS mounted differential across signal and return, leveraging low capacitance (<100 pF) to avoid signal integrity degradation. Use Value: Maintains <±0.1% linearity in current-loop transmission while suppressing ±8 kV contact ESD per IEC 61000-4-2. |
| Consumer Power Adapter Input Stage | Telecom DC Power Feed Protection |
Use Scenario: Safeguarding primary-side rectifier outputs in universal-input AC/DC adapters subjected to surge testing per IEC 61000-4-5. IC Role / Device Role / Timing Role: Placed across bulk capacitor terminals to absorb line-to-line and line-to-ground surges before they stress switching FETs or controllers. Use Value: Eliminates need for additional MOVs or gas discharge tubes, reducing BOM count and board space in compact adapters. |
Use Scenario: Protecting −48 V DC power feeds in telecom base station remote radio units from induced surges on long outdoor cable runs. IC Role / Device Role / Timing Role: Unidirectional configuration referenced to −48 V rail, clamping positive-going transients toward system ground. Use Value: Ensures uninterrupted operation during 2 kV/100 Ω ring wave surges without resetting power management ICs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ11A | Lower peak power (600 W), same VWM (9.4 V), SMB package (smaller thermal mass) | Limited to lower-energy transients; unsuitable for ISO 7637-2 pulse 5a or IEC 61000-4-5 Level 4 | Select when space constraints prohibit SMC footprint and surge threat level is ≤ Level 3 |
| 1.5KE11A | Through-hole TO-204AA (DO-41), identical electrical specs but no halogen-free or AEC-Q101 variants | Requires wave soldering; incompatible with fully SMT production lines and automotive PPAP documentation | Choose only for legacy through-hole designs where rework flexibility outweighs automated assembly needs |
Compared with SMBJ11A and 1.5KE11A, the 1.5SMC11A-M3/57T uniquely combines 1500 W surge capacity, SMC surface-mount compatibility, halogen-free compliance, and direct AEC-Q101 qualification pathway - making it the sole option meeting full automotive electronics production requirements without layout or process compromise.
Availability
1.5SMC11A-M3/57T is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor interface development, and telecom power feed protection requiring stable component supply, consistent halogen-free material compliance, and traceable lot-level documentation.
Supply support for 1.5SMC11A-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 is a global leader in discrete semiconductors, specializing in diodes, rectifiers, and protection devices with emphasis on reliability, thermal performance, and automotive-grade qualification.
The 1.5SMC Series was engineered specifically for high-power surface-mount transient suppression in harsh environments - targeting automotive, industrial, and telecom applications where 1500 W surge handling and AEC-Q101 compliance are mandatory.
FAQ
What is the clamping voltage of the 1.5SMC11A-M3/57T at its rated peak pulse current?
The 1.5SMC11A-M3/57T has a maximum clamping voltage (VC) of 15.6 V when subjected to its rated peak pulse current of 96.2 A under the standard 10/1000 μs waveform. This value is measured per Figure 1 in Vishay document 88303 and defines the upper voltage limit imposed on protected circuitry during worst-case surge events.
Is the 1.5SMC11A-M3/57T suitable for automotive applications?
Yes - the 1.5SMC11A-M3/57T uses the same die and construction as the AEC-Q101 qualified HM3 variant. While the M3 suffix itself denotes halogen-free RoHS compliance (not formal AEC-Q101 certification), Vishay explicitly states that _A suffix parts from 1.5SMC6.8A to 1.5SMC220A are available in AEC-Q101 qualified versions (HE3/HM3), confirming the 1.5SMC11A-M3/57T's qualification pathway and suitability for automotive use.
What does the "M3" suffix indicate in 1.5SMC11A-M3/57T?
The "M3" suffix in 1.5SMC11A-M3/57T specifies halogen-free, RoHS-compliant construction per IPC-1752A and EU Directive 2011/65/EU. It also indicates compliance with JESD201 Class 2 whisker resistance and JEDEC MSL level 1 moisture sensitivity - critical for lead-free reflow processes in high-reliability manufacturing.
How is polarity identified on the 1.5SMC11A-M3/57T?
The 1.5SMC11A-M3/57T uses a cathode band marking on the SMC (DO-214AB) package body to denote the cathode terminal. Per Vishay documentation, this banded end must be connected to the line being protected (e.g., VCC or signal), while the anode connects to reference potential (e.g., GND). No marking appears on bidirectional variants, but 1.5SMC11A-M3/57T is unidirectional.
What thermal pad layout is required to achieve the rated 1500 W peak pulse power for the 1.5SMC11A-M3/57T?
To sustain the full 1500 W peak pulse power rating, the 1.5SMC11A-M3/57T must be mounted on minimum recommended copper pads: 0.31" × 0.31" (8.0 mm × 8.0 mm) per terminal, as specified in Vishay document 88303. Deviation from this layout reduces thermal dissipation capability and requires derating per Figure 2 in the datasheet.
1.5SMC11A-M3/57T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- 1.5SMC, TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 9.4V
- Voltage - Breakdown (Min):
- 10.5V
- Voltage - Clamping (Max) @ Ipp:
- 15.6V
- Current - Peak Pulse (10/1000µs):
- 96.2A
- 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)
1.5SMC11A-M3/57T FAQ
1.How can I place an order for 1.5SMC11A-M3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for 1.5SMC11A-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 1.5SMC11A-M3/57T reliable?
The price and inventory of 1.5SMC11A-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 1.5SMC11A-M3/57T is usually 5 days.
3.What payment methods are accepted for 1.5SMC11A-M3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for 1.5SMC11A-M3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for 1.5SMC11A-M3/57T?
1.5SMC11A-M3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your 1.5SMC11A-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 1.5SMC11A-M3/57T?
For technical support, including 1.5SMC11A-M3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your 1.5SMC11A-M3/57T requirements.
6.How does Aetrix verify that 1.5SMC11A-M3/57T is sourced from the original manufacturer or authorized distributors?
All 1.5SMC11A-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 1.5SMC11A-M3/57T meets industry standards.
7.What is the process for return or replacement of 1.5SMC11A-M3/57T?
All 1.5SMC11A-M3/57T units undergo pre-shipment inspection (PSI). If there is an issue with 1.5SMC11A-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 1.5SMC11A-M3/57T part is unused and in its original packaging.
Return procedure for 1.5SMC11A-M3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
1.5SMC11A-M3/57T Tags
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