My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMCG11A-M3/57T
- Part No.:
- SMCG11A-M3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG11A-M3/57T.pdf
- Description:
- TVS DIODE 11VWM 18.2VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:5,054
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMCG11A-M3/57T from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the SMCG (DO-215AB) package, designed for high-energy surge protection with a 11 V standoff voltage (VWM), 12.2–13.5 V breakdown voltage (VBR), and 1500 W peak pulse power (PPPM) at 10/1000 µs. It clamps transients to ≤18.2 V at 82.4 A IPPM and is AEC-Q101 qualified for automotive electronics protection.
For engineers reviewing the SMCG11A-M3/57T datasheet, SMCG11A-M3/57T pinout, SMCG11A-M3/57T application, or SMCG11A-M3/57T equivalent, this device is selected for robust overvoltage protection on power rails and signal lines where low clamping voltage, fast response (<1 ns), and halogen-free RoHS compliance are required in industrial and automotive systems.
Technical Context
This TVS diode operates as a unidirectional avalanche clamp, leveraging glass-passivated junction technology for stable breakdown behavior and low incremental surge resistance. Its 1500 W PPPM rating is validated under JEDEC-standard 10/1000 µs waveform with derating above 25 °C per Fig. 2, and thermal resistance is specified at RθJA = 75 °C/W on 8.0 mm × 8.0 mm copper pads.
The SMCG11A-M3/57T features a cathode-band polarity marking, matte tin-plated leads compliant with J-STD-002 and JESD 22-B102, and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak. It is rated for TJ = –55 °C to +150 °C and supports IFSM = 200 A (8.3 ms half-sine) only in unidirectional configuration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 11 V - Maximum continuous reverse operating voltage before clamping begins; defines safe operating margin for 12 V nominal systems. |
| VBR (min/max) | 12.2 V / 13.5 V at IT = 1 mA - Confirmed avalanche breakdown range ensures reliable triggering without premature conduction. |
| VC @ IPPM | ≤18.2 V at 82.4 A - Clamping voltage during 10/1000 µs surge; limits protected circuit stress below IC absolute maximum ratings. |
| PPPM | 1500 W - Peak transient energy handling capacity; enables protection against ISO 7637-2 Pulse 1/2a/5a and IEC 61000-4-5 surges. |
| IR @ VWM | ≤5.0 µA - Low leakage preserves system efficiency and battery life in always-on circuits. |
| TJ max | +150 °C - Enables operation in under-hood automotive environments and high-power industrial enclosures. |
| Package | SMCG (DO-215AB) - Surface-mount gull-wing package with 0.31" × 0.31" pad layout; optimized for automated placement and thermal dissipation. |
Pinout & Package
SMCG11A-M3/57T uses the SMCG (DO-215AB) package: a surface-mount gull-wing outline with two terminals, cathode marked by a band. The package measures 7.87 mm × 9.64 mm × 2.41 mm (L × W × H) and is mounted on 8.0 mm × 8.0 mm copper pads per terminal for thermal and surge performance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; connected to ground or lower-potential rail in unidirectional TVS configuration. | Provides low-impedance path to ground during reverse-transient events; must be routed with minimal inductance for effective clamping. |
| Cathode | Current exit point in forward bias; marked with band; connected to protected line (e.g., 12 V supply or CAN_H). | Defines polarity-sensitive connection-reversal prevents clamping; critical for correct integration into power rail or data line protection schemes. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, humidity testing, and surge endurance-enables use in engine control units and ADAS sensors. |
| Halogen-free & RoHS-compliant (M3 suffix) | Meets global environmental regulations without compromising surge performance; eliminates brominated flame retardants in molding compound. |
| Low clamping voltage (VC ≤ 18.2 V) | Minimizes voltage overshoot on protected nodes-critical for safeguarding 16 V-tolerant microcontrollers and transceivers in 12 V systems. |
| Fast response time (<1 ns) | Clamps transients before they propagate through downstream circuitry-essential for protecting high-speed interfaces like LIN or CAN FD. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking-reduces manufacturing overhead and avoids moisture-induced popcorning. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Signal Line Protection |
|---|---|
|
Use Scenario: Protecting 12 V battery-fed ECUs from load-dump and alternator surge events per ISO 7637-2. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and ground, acting as primary overvoltage clamp. Use Value: Limits transient voltage to ≤18.2 V during 1500 W surges, preventing latch-up or gate oxide damage in downstream PMICs and MCUs. |
Use Scenario: Shielding analog sensor outputs (e.g., pressure or temperature sensors) from ESD and switching noise in factory automation PLCs. IC Role / Device Role / Timing Role: Point-of-entry TVS on differential or single-ended signal traces, referenced to local ground. Use Value: Sub-20 V clamping and <1 ns response preserve signal integrity and prevent ADC saturation or op-amp rail-to-rail excursion. |
| Telecom DC Power Input Protection | Consumer Device USB Port Protection |
|
Use Scenario: Safeguarding 48 V PoE-powered equipment inputs against lightning-induced surges and hot-swap transients. IC Role / Device Role / Timing Role: Primary TVS on DC input rail upstream of DC-DC converter, configured unidirectionally to ground. Use Value: 1500 W PPPM rating handles IEC 61000-4-5 Combination Wave (10/700 µs) surges without degradation across 1000+ events. |
Use Scenario: Adding secondary-level surge immunity to USB VBUS lines in portable audio devices and smart home hubs. IC Role / Device Role / Timing Role: Standoff-rated TVS (VWM = 11 V) placed between VBUS and chassis ground, complementing internal USB PHY ESD diodes. Use Value: 5.0 µA max leakage at 11 V avoids standby current drain; halogen-free M3 construction supports consumer sustainability requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ11A-E3/57T | Same VWM (11 V) and PPPM (400 W), but lower power rating; SMA package (DO-214AC), smaller footprint and thermal mass. | Lower surge capability suits consumer-grade 12 V rails with less stringent ISO 7637-2 requirements. | Select when board space is constrained and peak surge energy is ≤400 W; not suitable for automotive load-dump duty cycles. |
| SMCJ11A-M3/57T | Same VWM (11 V) and higher PPPM (1500 W), but larger SMC (DO-214AB) package; RθJA ≈ 35 °C/W vs. SMCG's 75 °C/W. | Better thermal performance allows sustained surge repetition; requires larger PCB area and different pad layout. | Choose for high-repetition surge environments (e.g., motor drive controls); verify mechanical fit and layout compatibility. |
Compared with SMAJ11A-E3/57T and SMCJ11A-M3/57T, SMCG11A-M3/57T delivers identical 11 V standoff and 1500 W surge rating in a compact DO-215AB gull-wing package with AEC-Q101 qualification-making it optimal for space-constrained automotive modules requiring certified reliability.
Availability
SMCG11A-M3/57T is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and telecom DC input surge suppression requiring stable component supply, halogen-free compliance, and AEC-Q101 validation.
Supply support for SMCG11A-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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SMCG series is engineered for high-power transient suppression in demanding environments-designed to meet automotive, industrial, and telecom surge standards while supporting automated SMT assembly and long-term field stability.
FAQ
What is the maximum clamping voltage of SMCG11A-M3/57T under surge conditions?
The SMCG11A-M3/57T has a maximum clamping voltage (VC) of 18.2 V when subjected to its rated peak pulse current (IPPM) of 82.4 A using the 10/1000 µs waveform. This value is measured at the device terminals under standardized test conditions and defines the upper voltage limit imposed on protected circuitry during transient events. The SMCG11A-M3/57T maintains this clamping performance across its full operating temperature range.
Is SMCG11A-M3/57T suitable for bidirectional transient protection?
No, SMCG11A-M3/57T is a unidirectional TVS diode, indicated by the "A" suffix and absence of "CA" in the part number. It conducts only in reverse bias and requires correct polarity orientation-cathode connected to the protected line. For bidirectional protection, Vishay offers SMCG11CA-M3/57T, which provides symmetrical clamping in both directions. The SMCG11A-M3/57T must not be substituted for bidirectional applications without circuit redesign.
Does SMCG11A-M3/57T require derating at elevated ambient temperatures?
Yes, SMCG11A-M3/57T must be derated above TA = 25 °C per Figure 2 in the Vishay datasheet (Document Number 88457). Its peak pulse power (PPPM) decreases linearly with increasing junction temperature, reaching ~50% of 1500 W at TJ ≈ 100 °C. Designers must apply thermal modeling using RθJA = 75 °C/W and actual PCB copper area to ensure safe operation. The SMCG11A-M3/57T remains rated up to TJ = +150 °C.
What does the "M3" suffix indicate in SMCG11A-M3/57T?
"M3" denotes halogen-free, RoHS-compliant construction meeting JEDEC J-STD-201 Class 2 whisker resistance requirements. It specifies that the molding compound contains no brominated or chlorinated flame retardants, and the matte tin-plated leads comply with J-STD-002 solderability standards. This distinguishes SMCG11A-M3/57T from E3 (RoHS-compliant, non-halogen-free) and HM3 (AEC-Q101 qualified + halogen-free) variants. The SMCG11A-M3/57T is industrial-grade, not automotive-qualified.
Can SMCG11A-M3/57T be used in place of SMAJ11A in existing designs?
SMCG11A-M3/57T is not a drop-in replacement for SMAJ11A due to differing packages (SMCG/DO-215AB vs. SMA/DO-214AC), thermal characteristics (RθJA = 75 °C/W vs. ~100 °C/W), and mounting pad requirements. While both share VWM = 11 V and unidirectional function, the SMCG11A-M3/57T offers higher surge capability (1500 W vs. 400 W) and AEC-Q101 qualification-but requires PCB layout revision. Direct substitution without validation may compromise thermal performance or surge endurance. The SMCG11A-M3/57T must be integrated with its specified 8.0 mm × 8.0 mm copper pads.
SMCG11A-M3/57T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-215AB, SMC Gull Wing
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 11V
- Voltage - Breakdown (Min):
- 12.2V
- Voltage - Clamping (Max) @ Ipp:
- 18.2V
- Current - Peak Pulse (10/1000µs):
- 82.4A
- Power - Peak Pulse:
- 1500W (1.5kW)
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCG)
SMCG11A-M3/57T FAQ
1.How can I place an order for SMCG11A-M3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG11A-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 SMCG11A-M3/57T reliable?
The price and inventory of SMCG11A-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 SMCG11A-M3/57T is usually 5 days.
3.What payment methods are accepted for SMCG11A-M3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG11A-M3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG11A-M3/57T?
SMCG11A-M3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG11A-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 SMCG11A-M3/57T?
For technical support, including SMCG11A-M3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG11A-M3/57T requirements.
6.How does Aetrix verify that SMCG11A-M3/57T is sourced from the original manufacturer or authorized distributors?
All SMCG11A-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 SMCG11A-M3/57T meets industry standards.
7.What is the process for return or replacement of SMCG11A-M3/57T?
All SMCG11A-M3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCG11A-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 SMCG11A-M3/57T part is unused and in its original packaging.
Return procedure for SMCG11A-M3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG11A-M3/57T Tags
-
ESD9B5.0ST5G
onsemi
-
DESD3V3E1BL-7B
Diodes Incorporated
-
ESD5Z3.3T1G
onsemi
-
D5V0H1B2LP-7B
Diodes Incorporated
-
D5V0P1B2LP-7B
Diodes Incorporated
-
DESD5V0U1BA-7
Diodes Incorporated
-
ESD5Z5.0T1G
onsemi
-
DESD5V0U1BB-7
Diodes Incorporated
-
D12V0L1B2LP-7B
Diodes Incorporated
-
PESD2V0Y1BSFYL
Nexperia USA Inc.
-
DF2S5M4CT,L3F
Toshiba Semiconductor and Storage
-
D5V0L1B2WS-7
Diodes Incorporated
Tech Hub
Comparator circuit design covering voltage thresholds, input limits, open-collector outputs, LM393 wiring, op-amp differences, hysteresis, timing, window detection and practical fault diagnosis.
Schmitt triggers use separate rising and falling thresholds to stabilize slow or noisy signals. This guide covers hysteresis, 74HC14 and 74HCT14 selection, comparator calculations, RC oscillators and p…
Counterfeit components can hide behind convincing markings and passing basic function tests. This engineering reference covers source traceability, external inspection, X-ray, XRF, electrical testing, …
A practical engineering and sourcing framework covering lifecycle verification, lifetime-buy calculations, replacement qualification, supplier checks and counterfeit-risk controls.
TTL and CMOS logic families differ in thresholds, loading, output drive, power and timing. This engineering guide compares 74HC and 74HCT, calculates noise margins and checks 3.3 V/5 V compatibility.
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
