My Inquiry
My Account
Vishay General Semiconductor - Diodes Division SMCG11A-M3/9AT
- Part No.:
- SMCG11A-M3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG11A-M3/9AT.pdf
- Description:
- TVS DIODE 11VWM 18.2VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:3,660
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
SMCG11A-M3/9AT from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the SMCG (DO-215AB) package, featuring a 11 V stand-off voltage (VWM), 12.2–13.5 V breakdown voltage (VBR) at 1 mA, 18.2 V clamping voltage (VC) at 82.4 A peak pulse current (IPPM), and 1500 W peak pulse power (PPPM) with 10/1000 µs waveform. It protects MOSFETs, ICs, and sensor signal lines in automotive power electronics and industrial control interfaces.
For engineers reviewing the SMCG11A-M3/9AT datasheet, SMCG11A-M3/9AT pinout, SMCG11A-M3/9AT application, or SMCG11A-M3/9AT equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, halogen-free RoHS compliance, thermal resistance (RθJA = 75 °C/W), and bidirectional variant compatibility for transient suppression design validation.
Technical Context
This TVS diode operates as a clamping device in parallel with sensitive circuit nodes, responding to transients within picoseconds via avalanche breakdown. Its glass-passivated junction ensures stable VBR tolerance (±5% typical), low incremental surge resistance, and repeatable clamping performance under repetitive 10/1000 µs surges up to 1500 W.
Designed for surface-mount automated assembly on 8.0 mm × 8.0 mm copper pads per terminal, it meets J-STD-020 MSL Level 1 (260 °C peak reflow), supports 200 A non-repetitive forward surge (IFSM), and maintains operation across -55 °C to +150 °C junction temperature range.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 11 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC/AC bias margin for protected line. |
| VBR min/max | 12.2 V / 13.5 V at IT = 1 mA - Confirmed breakdown threshold range; ensures reliable turn-on during overvoltage events. |
| VC @ IPPM | 18.2 V at 82.4 A - Clamped voltage during 10/1000 µs surge; determines maximum stress imposed on downstream ICs. |
| PPPM | 1500 W - Peak transient energy handling capacity; enables protection against IEC 61000-4-5 Level 4 surges. |
| RθJA | 75 °C/W - Junction-to-ambient thermal resistance on standard pad layout; informs derating above 25 °C ambient. |
| TJ max | +150 °C - Maximum allowable junction temperature; sets upper limit for thermal design in enclosed enclosures. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC specification. |
Pinout & Package
Package: SMCG (DO-215AB) - Surface-mount gull-wing leaded package with cathode band marking; 0.310" × 0.400" footprint (7.87 mm × 10.16 mm); matte tin-plated leads compliant with J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; connected to ground or low-impedance return path in unidirectional configuration. | Provides reference node for clamping action; must be routed with low-inductance path to minimize overshoot during fast transients. |
| Cathode | Current exit point in forward bias; marked by band; connected to protected line (e.g., CAN_H, LIN, or MCU I/O). | Determines polarity of protection; reverse-biased during normal operation; avalanche conduction initiates here during overvoltage. |
Key Features
| Feature | Design Value |
|---|---|
| Halogen-free & RoHS compliant | M3 suffix confirms halogen-free molding compound and terminations - satisfies IPC-1752A material declaration and automotive ELV requirements. |
| Low-profile DO-215AB package | Max height 0.058" (1.47 mm) - enables use in space-constrained automotive ECUs and industrial PCBs with tight Z-axis clearance. |
| Very fast response time | < 1.0 ps junction response - limits voltage overshoot during sub-nanosecond ESD events (IEC 61000-4-2) without external triggering circuitry. |
| Excellent clamping ratio | VC/VWM = 1.65 - low clamping factor ensures minimal overvoltage exposure to protected ICs compared to competing 1500 W TVS devices. |
| MSL Level 1 rating | Reflow capable up to 260 °C peak - eliminates pre-baking requirement and supports standard lead-free SMT assembly processes. |
Applications
| Automotive Power Distribution | Industrial Sensor Signal Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed microcontroller power rails and wake-up inputs from load-dump and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between VCC and GND, absorbing >100 V spikes within nanoseconds. Use Value: Limits rail voltage to ≤18.2 V during 1500 W surges, preventing brownout reset or latch-up in AEC-Q100 qualified MCUs. |
Use Scenario: Safeguarding analog output lines (e.g., 4–20 mA current loop drivers) from field-wiring induced surges in factory automation systems. IC Role / Device Role / Timing Role: Parallel-connected TVS on signal path, referenced to system ground, with low leakage (<5 µA at 11 V). Use Value: Maintains signal integrity below 11 V standby while clamping transients to 18.2 V - avoids ADC saturation and preserves 12-bit measurement accuracy. |
| Automotive LIN Bus Interface | Consumer Appliance Motor Control |
Use Scenario: Shielding LIN transceiver pins (LIN_H/L) against ESD and inductive switching noise in body control modules. IC Role / Device Role / Timing Role: Bidirectional-capable variant (SMCG11CA) used; SMCG11A-M3/9AT serves as unidirectional alternative where ground-referenced protection suffices. Use Value: Achieves <1 ns response to ±8 kV contact ESD (IEC 61000-4-2), ensuring LIN frame integrity without bus shutdown. |
Use Scenario: Suppressing back-EMF spikes from brushed DC motors in smart home appliances (e.g., washing machine drum drives). IC Role / Device Role / Timing Role: Mounted across motor terminals or H-bridge outputs to clamp flyback voltage during PWM commutation. Use Value: Handles 200 A single-half-sine surge (IFSM), preventing gate oxide damage to MOSFETs and extending driver IC lifetime. |
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), lower PPPM (400 W), SMA (DO-214AC) package, RθJA = 110 °C/W. | Limited to lower-energy transients; unsuitable for IEC 61000-4-5 Level 4 or automotive load-dump. | Select when cost sensitivity outweighs surge robustness and board space allows larger thermal pad area. |
| SMCJ11A-M3/9AT | Same VWM (11 V), identical PPPM (1500 W), but SMC (DO-214AB) package with higher RθJA (85 °C/W) and larger footprint (7.11 mm × 6.22 mm). | Requires more PCB area; less suitable for ultra-thin modules; same clamping performance but reduced thermal margin at high ambient. | Choose only if legacy SMC footprint compatibility is required; otherwise SMCG offers superior thermal efficiency and smaller X-Y size. |
Compared with SMAJ11A-E3/57T and SMCJ11A-M3/9AT, SMCG11A-M3/9AT delivers identical 11 V standoff and 1500 W surge capability in a thermally optimized, space-saving DO-215AB package with AEC-Q101 qualification - making it the preferred choice for next-generation automotive and industrial designs demanding compact, high-reliability transient suppression.
Availability
SMCG11A-M3/9AT is available at Aetrix Electronics and suitable for automotive power distribution, industrial sensor interface protection, LIN bus circuits, and consumer appliance motor control requiring stable component supply and full traceability.
Supply support for SMCG11A-M3/9AT 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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and automotive-grade qualification.
The SMCG series targets high-power transient suppression in space-constrained automotive and industrial environments, delivering AEC-Q101 qualified TVS performance in the industry's smallest 1500 W DO-215AB footprint.
FAQ
What is the clamping voltage of SMCG11A-M3/9AT at its rated peak pulse current?
The SMCG11A-M3/9AT has a maximum clamping voltage (VC) of 18.2 V at 82.4 A peak pulse current (IPPM) under the standard 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during surge events. The SMCG11A-M3/9AT maintains this clamping performance across its full operating temperature range (-55 °C to +150 °C) when mounted per the recommended 8.0 mm × 8.0 mm copper pad layout.
Is SMCG11A-M3/9AT qualified for automotive applications?
Yes, SMCG11A-M3/9AT is AEC-Q101 qualified, having passed stress tests including high-temperature reverse bias (HTRB), temperature cycling, and ESD per the AEC-Q101 standard. Its M3 suffix confirms halogen-free, RoHS-compliant construction meeting automotive material requirements. The SMCG11A-M3/9AT is specified for use in engine control units, body electronics, and infotainment systems where transient immunity and long-term reliability are critical.
What does the "M3" suffix indicate in SMCG11A-M3/9AT?
The "M3" suffix in SMCG11A-M3/9AT denotes halogen-free, RoHS-compliant construction for both the molding compound and matte tin-plated leads - satisfying IPC-1752A material declarations and EU ELV Directive requirements. It also confirms compliance with JESD201 Class 2 whisker resistance and J-STD-002 solderability standards. This distinguishes SMCG11A-M3/9AT from E3 (RoHS-compliant but not halogen-free) and HM3 (AEC-Q101 qualified + halogen-free) variants.
Can SMCG11A-M3/9AT be used in bidirectional configurations?
No - SMCG11A-M3/9AT is a unidirectional TVS diode, identified by the "A" suffix and cathode band marking. For bidirectional operation, the functionally matched part is SMCG11CA-M3/9AT, which provides symmetrical clamping in both polarities with identical VWM (11 V), VBR (12.2–13.5 V), and VC (18.2 V). The SMCG11A-M3/9AT must be oriented with cathode toward the protected line and anode to ground to ensure proper avalanche conduction during positive transients.
What is the thermal resistance of SMCG11A-M3/9AT under standard mounting conditions?
The SMCG11A-M3/9AT 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 pads per terminal. This value assumes no additional heatsinking and is used to calculate power derating above 25 °C ambient temperature. At 85 °C ambient, the SMCG11A-M3/9AT's continuous power dissipation (PD) must be reduced from 6.5 W to approximately 4.0 W to maintain TJ ≤ 150 °C.
SMCG11A-M3/9AT 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-M3/9AT FAQ
1.How can I place an order for SMCG11A-M3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG11A-M3/9AT 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 SMCG11A-M3/9AT reliable?
The price and inventory of SMCG11A-M3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG11A-M3/9AT is usually 5 days.
3.What payment methods are accepted for SMCG11A-M3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG11A-M3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG11A-M3/9AT?
SMCG11A-M3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG11A-M3/9AT 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 SMCG11A-M3/9AT?
For technical support, including SMCG11A-M3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG11A-M3/9AT requirements.
6.How does Aetrix verify that SMCG11A-M3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCG11A-M3/9AT 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 SMCG11A-M3/9AT meets industry standards.
7.What is the process for return or replacement of SMCG11A-M3/9AT?
All SMCG11A-M3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCG11A-M3/9AT, 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 SMCG11A-M3/9AT part is unused and in its original packaging.
Return procedure for SMCG11A-M3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG11A-M3/9AT 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 …
