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Vishay General Semiconductor - Diodes Division SMCG150A-M3/9AT
- Part No.:
- SMCG150A-M3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG150A-M3/9AT.pdf
- Description:
- TVS DIODE 150VWM 243VC DO215AB
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SMCG150A-M3/9AT from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the SMCG (DO-215AB) package, featuring a 150 V stand-off voltage (VWM), 167–185 V breakdown voltage (VBR), 1500 W peak pulse power (PPPM), 6.2 A peak pulse current (IPPM), and clamping voltage of 243 V at IPPM. It protects MOSFETs, ICs, and sensor signal lines against inductive switching transients and lightning surges in automotive and industrial power electronics.
For engineers reviewing the SMCG150A-M3/9AT datasheet, SMCG150A-M3/9AT pinout, SMCG150A-M3/9AT application, or SMCG150A-M3/9AT equivalent, this device is selected for high-energy transient suppression where AEC-Q101 qualification, halogen-free RoHS compliance, and low incremental surge resistance are required in compact surface-mount designs.
Technical Context
This TVS diode operates as a unidirectional clamping device with a cathode-band polarity marking, designed to conduct only during reverse overvoltage events. Its glass-passivated junction ensures stable breakdown characteristics and fast response time (<1 ns), while its DO-215AB package supports automated placement and meets MSL level 1 per J-STD-020 at 260 °C peak reflow.
The device delivers 1500 W peak pulse power under 10/1000 µs waveform conditions on standard 8.0 mm × 8.0 mm copper pads, with thermal resistance of 75 °C/W (junction-to-ambient) and 15 °C/W (junction-to-lead), enabling reliable operation up to 150 °C junction temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 150 V - Maximum continuous reverse operating voltage before clamping begins; defines safe working range for protected circuitry. |
| VBR min/max | 167 V / 185 V at 1.0 mA test current - Confirmed breakdown threshold range ensuring predictable turn-on behavior under surge conditions. |
| VC @ IPPM | 243 V - Clamping voltage at rated peak pulse current; determines maximum voltage stress imposed on downstream components during transient events. |
| PPPM | 1500 W - Peak pulse power handling capability under standardized 10/1000 µs waveform; quantifies transient energy absorption capacity. |
| IPPM | 6.2 A - Peak pulse current corresponding to PPPM; used with PCB trace impedance to estimate actual clamping performance. |
| TJ max | +150 °C - Maximum allowable junction temperature; enables deployment in under-hood automotive and high-temperature industrial environments. |
| RθJA | 75 °C/W - Junction-to-ambient thermal resistance on recommended pad layout; informs heatsinking requirements for sustained surge duty cycles. |
Pinout & Package
Package: SMCG (DO-215AB) - Surface-mount gull-wing package with matte tin-plated leads, compliant with J-STD-002 and JESD 22-B102 solderability standards. Meets UL 94 V-0 flammability rating and JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal (cathode-banded end) | Connected to ground or lower-potential rail; reverse-biased during normal operation; conducts during overvoltage events to shunt current away from protected load. |
| Cathode | Reverse-biased terminal (marked with band) | Connected to the line or node requiring protection; establishes polarity-sensitive clamping action for unidirectional surge suppression. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity bias HAST, and mechanical shock - suitable for engine control, ADAS, and body electronics. |
| Halogen-free & RoHS compliant (M3 suffix) | Meets environmental compliance mandates without compromising surge robustness; eliminates brominated flame retardants in molding compound. |
| Low incremental surge resistance | Enables tighter clamping voltage margin between VBR and VC, reducing voltage overshoot during fast-rising transients like ESD or inductive kickback. |
| Glass passivated junction | Provides stable, repeatable breakdown characteristics over lifetime and temperature, minimizing parameter drift in harsh operating environments. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow profiles up to 260 °C peak - eliminates baking requirements and simplifies SMT manufacturing. |
Applications
| Automotive Power Distribution | Industrial Motor Drive Protection |
|---|---|
|
Use Scenario: Protecting 12 V/24 V power rails feeding ECUs, lighting modules, and actuators from load-dump and jump-start transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed at input stage to limit voltage excursions above 150 V while maintaining low leakage below VWM. Use Value: Withstands 1500 W pulses and operates up to +150 °C, meeting ISO 7637-2 Pulse 5a/b requirements without derating in under-hood locations. |
Use Scenario: Safeguarding gate drivers and IGBTs in variable-frequency drives from inductive switching spikes generated by motor windings. IC Role / Device Role / Timing Role: Fast-response transient suppressor across DC bus or gate-source terminals to prevent false triggering or avalanche failure. Use Value: 243 V clamping voltage at 6.2 A limits voltage stress on 600 V-class IGBTs, preserving safe operating area during repetitive commutation events. |
| Telecom Power Interface | Automotive Sensor Signal Lines |
|
Use Scenario: Shielding PoE-powered equipment inputs from lightning-induced surges on Ethernet cables and AC/DC adapter inputs. IC Role / Device Role / Timing Role: Primary-level surge protector on secondary-side DC outputs, coordinated with upstream GDTs or MOVs. Use Value: 1500 W PPPM and low Rsurge ensure effective energy diversion before downstream LDOs or DC-DC controllers experience overvoltage damage. |
Use Scenario: Protecting analog and CAN signal lines from ESD and cable discharge events in radar, camera, and ultrasonic parking sensors. IC Role / Device Role / Timing Role: Low-capacitance unidirectional TVS placed adjacent to connector interface to suppress sub-100 ns transients without distorting signal integrity. Use Value: AEC-Q101 qualification and 1.0 µA max reverse leakage at 150 V support long-term reliability in safety-critical ADAS subsystems. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ150A-E3/57T | Same VWM (150 V) and PPPM (400 W), but lower power rating and SMA (DO-214AC) package with higher RθJA (110 °C/W). | Limited to lower-energy transients; not AEC-Q101 qualified; unsuitable for automotive under-hood use. | Select when cost and board space are prioritized over automotive qualification and high-power surge handling. |
| SMCJ150A-M3/9AT | Same VWM (150 V), higher PPPM (1500 W), identical DO-215AB package, but non-AEC-Q101 industrial grade (M3 suffix only). | Matches SMCG150A-M3/9AT in electrical specs and footprint, but lacks automotive reliability validation. | Choose for industrial motor controls or telecom where AEC-Q101 is not mandated but 1500 W clamping is required. |
Compared with SMAJ150A-E3/57T and SMCJ150A-M3/9AT, SMCG150A-M3/9AT uniquely combines AEC-Q101 qualification, halogen-free construction, and 1500 W surge capability in the DO-215AB package - making it the only option validated for high-reliability automotive power rail protection without design compromise.
Availability
SMCG150A-M3/9AT is available at Aetrix Electronics and suitable for automotive power distribution, industrial motor drive protection, and telecom power interface applications requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SMCG150A-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, and transient protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SMCG series was developed specifically for high-energy, surface-mount transient suppression in automotive and industrial systems where AEC-Q101 compliance, low-profile packaging, and consistent clamping performance are critical.
FAQ
What is the clamping voltage of SMCG150A-M3/9AT at its rated peak pulse current?
The SMCG150A-M3/9AT has a maximum clamping voltage (VC) of 243 V when subjected to its rated peak pulse current (IPPM) of 6.2 A under the standard 10/1000 µs waveform. This value is measured on the minimum recommended 8.0 mm × 8.0 mm copper pad layout and defines the upper voltage limit imposed on protected circuitry during worst-case transient events. The SMCG150A-M3/9AT maintains this clamping performance across its full operating temperature range.
Is SMCG150A-M3/9AT qualified for automotive applications?
Yes, SMCG150A-M3/9AT is AEC-Q101 qualified, having passed rigorous stress tests including temperature cycling, high-temperature operating life, and unbiased highly accelerated stress testing. This qualification confirms its suitability for automotive powertrain, chassis, and ADAS systems where reliability under thermal and mechanical stress is mandatory. The SMCG150A-M3/9AT carries the HM3 suffix variant for full AEC-Q101 compliance, and the M3 suffix denotes halogen-free RoHS compliance for industrial use.
What does the "M3" suffix indicate in SMCG150A-M3/9AT?
The "M3" suffix in SMCG150A-M3/9AT specifies halogen-free, RoHS-compliant construction with industrial-grade reliability. It indicates that the molding compound contains no brominated or chlorinated flame retardants and meets JEDEC JESD201 Class 2 whisker resistance requirements. Unlike the "HM3" suffix, M3 does not imply AEC-Q101 qualification - however, SMCG150A-M3/9AT is separately AEC-Q101 qualified per Vishay documentation. The SMCG150A-M3/9AT remains fully compatible with lead-free reflow processes up to 260 °C.
How does SMCG150A-M3/9AT differ from SMAJ150A in terms of surge capability?
SMCG150A-M3/9AT delivers 1500 W peak pulse power (PPPM) under 10/1000 µs waveform, whereas SMAJ150A is rated for only 400 W. This threefold increase enables the SMCG150A-M3/9AT to absorb significantly higher transient energy without failure. Additionally, SMCG150A-M3/9AT uses the larger DO-215AB package with lower thermal resistance (75 °C/W vs. 110 °C/W), improving sustained surge handling. The SMCG150A-M3/9AT also features AEC-Q101 qualification, which SMAJ150A lacks.
What is the maximum operating junction temperature for SMCG150A-M3/9AT?
The maximum operating junction temperature (TJ max) for SMCG150A-M3/9AT is +150 °C, as specified in Vishay's official datasheet. This rating allows deployment in high-temperature environments such as automotive engine compartments or industrial motor drive enclosures. Thermal performance is validated using the standard 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pad layout, and the device's RθJA of 75 °C/W enables accurate thermal modeling for system-level reliability analysis. The SMCG150A-M3/9AT maintains full electrical specifications up to this temperature limit.
SMCG150A-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):
- 150V
- Voltage - Breakdown (Min):
- 167V
- Voltage - Clamping (Max) @ Ipp:
- 243V
- Current - Peak Pulse (10/1000µs):
- 6.2A
- 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)
SMCG150A-M3/9AT FAQ
1.How can I place an order for SMCG150A-M3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG150A-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 SMCG150A-M3/9AT reliable?
The price and inventory of SMCG150A-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 SMCG150A-M3/9AT is usually 5 days.
3.What payment methods are accepted for SMCG150A-M3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG150A-M3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG150A-M3/9AT?
SMCG150A-M3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG150A-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 SMCG150A-M3/9AT?
For technical support, including SMCG150A-M3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG150A-M3/9AT requirements.
6.How does Aetrix verify that SMCG150A-M3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCG150A-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 SMCG150A-M3/9AT meets industry standards.
7.What is the process for return or replacement of SMCG150A-M3/9AT?
All SMCG150A-M3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCG150A-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 SMCG150A-M3/9AT part is unused and in its original packaging.
Return procedure for SMCG150A-M3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG150A-M3/9AT Tags
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