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Vishay General Semiconductor - Diodes Division SMCG36A-M3/9AT
- Part No.:
- SMCG36A-M3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG36A-M3/9AT.pdf
- Description:
- TVS DIODE 36VWM 58.1VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,268
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Product details
Overview
SMCG36A-M3/9AT from Vishay General Semiconductor is a unidirectional surface-mount TransZORB® transient voltage suppressor in the SMCG (DO-215AB) package, with a 36 V standoff voltage (VWM), 40.0–44.2 V breakdown voltage (VBR), 1500 W peak pulse power (PPPM), and 25.8 A peak pulse current (IPPM). It protects MOSFETs and ICs against inductive switching transients in automotive power electronics.
For engineers reviewing the SMCG36A-M3/9AT datasheet, SMCG36A-M3/9AT pinout, SMCG36A-M3/9AT application, or SMCG36A-M3/9AT equivalent, this page delivers verified electrical specs, AEC-Q101 qualification status, halogen-free RoHS compliance, thermal resistance data, and real-world protection use cases for industrial and automotive circuit design.
Technical Context
The SMCG36A-M3/9AT operates as a clamping-type TVS diode with unidirectional polarity, utilizing a glass-passivated silicon junction to achieve sub-nanosecond response time and low incremental surge resistance. Its 1500 W PPPM rating is specified under the standardized 10/1000 μs waveform per ANSI/IEEE C62.35.
Designed for surface-mount assembly on 8.0 mm × 8.0 mm copper pads, it features a maximum clamping voltage of 58.1 V at IPPM and exhibits 75 °C/W typical junction-to-ambient thermal resistance (RθJA) - critical for thermal management in high-reliability power rail protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 36 V - maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 40.0 V / 44.2 V at 1.0 mA test current - defines reliable breakdown threshold window |
| PPPM | 1500 W - peak transient energy absorption capability under 10/1000 μs surge |
| VC @ IPPM | 58.1 V - clamped voltage during full-rated surge, limiting stress on downstream components |
| IPPM | 25.8 A - maximum non-repetitive surge current the device safely conducts |
| TJ max | +150 °C - enables operation in under-hood automotive environments |
| RθJA | 75 °C/W - informs heatsinking requirements when mounted on standard 8 mm × 8 mm pads |
Pinout & Package
Package: SMCG (DO-215AB) - low-profile, surface-mount gull-wing package with matte tin-plated leads, compliant with J-STD-002 and JESD 22-B102 solderability standards. Polarity marked by cathode band on unidirectional devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to ground or lower-potential node in unidirectional clamp configuration |
| Cathode | Current exit terminal during forward conduction; clamping node | Connected to protected line (e.g., 12 V rail); band-marked end indicates cathode |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing |
| Halogen-free & RoHS compliant (M3 suffix) | Meets environmental compliance requirements for industrial and automotive supply chains |
| Low incremental surge resistance | Enables tighter clamping and reduced let-through voltage during fast transients |
| MSL Level 1 (J-STD-020) | Unlimited floor life at ≤30 °C/60% RH - no bake required prior to reflow |
| Glass passivated chip junction | Improves long-term stability and moisture resistance versus epoxy-passivated alternatives |
Applications
| Automotive Power Rail Protection | Industrial Motor Drive Control |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs and body control modules from load-dump and inductive kickback transients. IC Role / Device Role / Timing Role: Unidirectional clamping TVS placed between power rail and ground, absorbing surges up to 1500 W without failure. Use Value: Limits rail voltage to ≤58.1 V during 25.8 A transients, preventing damage to 36 V-rated microcontrollers and CAN transceivers. | Use Scenario: Safeguarding gate drivers and IGBTs in variable-frequency drives exposed to switching noise and back-EMF spikes. IC Role / Device Role / Timing Role: Fast-response transient suppressor across DC bus rails, triggered within nanoseconds to clamp overvoltage events. Use Value: Maintains system uptime by preventing false triggering or latch-up in logic-level interfaces due to 10/1000 μs surges. |
| Telecom Power Supply Input | Automotive Sensor Interface Protection |
Use Scenario: Shielding AC/DC converter inputs in base station power supplies from lightning-induced surges on primary-side lines. IC Role / Device Role / Timing Role: Primary-side TVS in series with fuse and MOV, providing precise clamping before upstream protection activates. Use Value: Delivers repeatable 58.1 V clamping at 25.8 A, enabling predictable coordination with secondary-side regulators and PMICs. | Use Scenario: Guarding LIN or SENT signal lines connected to engine temperature and pressure sensors in harsh under-hood environments. IC Role / Device Role / Timing Role: Low-capacitance unidirectional suppressor placed at connector interface to shunt ESD and coupled transients to chassis ground. Use Value: Withstands repeated ±30 kV contact ESD (per IEC 61000-4-2) while maintaining signal integrity due to fast response and minimal leakage (<1 μA at 36 V). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ36A-E3/57T | Same VWM (36 V), lower PPPM (400 W), SMA (DO-214AC) package, non-AEC-Q101 | Limited to consumer/industrial PCBs without automotive qualification requirements | Select when cost sensitivity outweighs automotive reliability needs and surge energy is ≤400 W |
| SMCJ36A-M3/9AT | Same VWM (36 V), higher PPPM (1500 W), SMC (DO-214AB) package, AEC-Q101 qualified | Requires larger PCB footprint (7.11 mm × 6.22 mm vs. SMCG's 6.60 mm × 5.59 mm) but offers identical surge rating | Choose when board space permits larger package and legacy SMCJ footprint compatibility is needed |
Compared with SMAJ36A-E3/57T and SMCJ36A-M3/9AT, the SMCG36A-M3/9AT delivers identical 1500 W surge capability and AEC-Q101 qualification in a 20 % smaller footprint than SMCJ, making it optimal for space-constrained automotive modules where thermal performance (RθJA = 75 °C/W) and halogen-free compliance are mandatory.
Availability
SMCG36A-M3/9AT is available at Aetrix Electronics and suitable for automotive power rail protection, industrial motor drive control, telecom power supply input, and automotive sensor interface protection requiring stable component supply and full traceability.
Supply support for SMCG36A-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 protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SMCG series was engineered specifically for high-energy transient suppression in automotive and industrial environments, combining AEC-Q101 qualification, halogen-free construction, and DO-215AB packaging for automated placement and thermal robustness.
FAQ
What is the clamping voltage of the SMCG36A-M3/9AT at its rated peak pulse current?
The SMCG36A-M3/9AT has a maximum clamping voltage (VC) of 58.1 V when subjected to its rated peak pulse current (IPPM) of 25.8 A under the standard 10/1000 μs waveform. This value ensures protected downstream components - such as 36 V-rated MCUs or CAN transceivers - remain within safe operating limits during surge events. The clamping performance is guaranteed across the full operating temperature range of -55 °C to +150 °C.
Is the SMCG36A-M3/9AT qualified for automotive applications?
Yes, the SMCG36A-M3/9AT is AEC-Q101 qualified, having passed rigorous stress tests including high-temperature reverse bias (HTRB), temperature cycling, and ESD per JESD22-A114. The "M3" suffix confirms halogen-free, RoHS-compliant construction meeting automotive supply chain requirements. This qualification makes the SMCG36A-M3/9AT suitable for under-hood ECUs, body control modules, and ADAS power domains where reliability is mission-critical.
What does the "M3" suffix indicate in SMCG36A-M3/9AT?
The "M3" suffix in SMCG36A-M3/9AT denotes halogen-free, RoHS-compliant construction with industrial-grade reliability and JESD201 Class 2 whisker resistance. Unlike "E3" (standard RoHS) or "HM3" (AEC-Q101 + halogen-free), "M3" provides automotive-grade robustness without the extended qualification overhead - ideal for industrial and Tier-2 automotive applications where halogen-free compliance and thermal stability are required but full AEC-Q101 documentation is not mandated.
How does the SMCG36A-M3/9AT compare to SMAJ36A in terms of surge handling?
The SMCG36A-M3/9AT supports 1500 W peak pulse power (PPPM) - 3.75× higher than the 400 W rating of SMAJ36A-E3/57T - while maintaining identical 36 V standoff voltage and 40–44.2 V breakdown range. Its DO-215AB package also delivers lower thermal resistance (75 °C/W vs. ~100 °C/W for SMA) and superior surge current handling (25.8 A vs. ~11.5 A), making SMCG36A-M3/9AT appropriate for high-energy automotive and industrial transients where SMAJ36A would fail catastrophically.
What is the recommended PCB pad layout for optimal thermal performance of SMCG36A-M3/9AT?
Vishay specifies a minimum 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pad area per terminal for the SMCG36A-M3/9AT to achieve rated 1500 W surge capability and maintain RθJA = 75 °C/W. Thermal vias under pads are recommended for high-duty-cycle applications. The device must be placed with the cathode band aligned per silkscreen, and solder reflow must follow J-STD-020 MSL Level 1 profile - peak temperature ≤260 °C - with no pre-bake required.
SMCG36A-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):
- 36V
- Voltage - Breakdown (Min):
- 40V
- Voltage - Clamping (Max) @ Ipp:
- 58.1V
- Current - Peak Pulse (10/1000µs):
- 25.8A
- 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)
SMCG36A-M3/9AT FAQ
1.How can I place an order for SMCG36A-M3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG36A-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 SMCG36A-M3/9AT reliable?
The price and inventory of SMCG36A-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 SMCG36A-M3/9AT is usually 5 days.
3.What payment methods are accepted for SMCG36A-M3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG36A-M3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG36A-M3/9AT?
SMCG36A-M3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG36A-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 SMCG36A-M3/9AT?
For technical support, including SMCG36A-M3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG36A-M3/9AT requirements.
6.How does Aetrix verify that SMCG36A-M3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCG36A-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 SMCG36A-M3/9AT meets industry standards.
7.What is the process for return or replacement of SMCG36A-M3/9AT?
All SMCG36A-M3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCG36A-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 SMCG36A-M3/9AT part is unused and in its original packaging.
Return procedure for SMCG36A-M3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG36A-M3/9AT Tags
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