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Vishay General Semiconductor - Diodes Division SMCG90A-M3/9AT
- Part No.:
- SMCG90A-M3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG90A-M3/9AT.pdf
- Description:
- TVS DIODE 90VWM 146VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,133
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Product details
Overview
SMCG90A-M3/9AT from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in DO-215AB (SMCG) package, with 90 V standoff voltage (VWM), 100–111 V breakdown voltage (VBR), 1500 W peak pulse power (PPPM), and 10.3 A peak pulse current (IPPM) at 10/1000 µs waveform - designed for robust overvoltage protection of automotive power rails and industrial DC inputs.
For engineers reviewing the SMCG90A-M3/9AT datasheet, SMCG90A-M3/9AT pinout, SMCG90A-M3/9AT application, or SMCG90A-M3/9AT equivalent, key selection criteria include clamping voltage (VC = 146 V), low incremental surge resistance, AEC-Q101 qualification, halogen-free RoHS compliance (M3 suffix), and compatibility with automated SMT placement on 8.0 mm × 8.0 mm copper pads.
Technical Context
This TVS diode operates as a unidirectional clamping device, leveraging a glass-passivated silicon junction to achieve sub-nanosecond response to transients. Its 146 V clamping voltage at 10.3 A ensures safe voltage limiting during ISO 7637-2 pulse 1/2a/5a events in 12 V/24 V automotive systems.
Thermal design is supported by RθJA = 75 °C/W and RθJL = 15 °C/W, enabling reliable operation up to TJ = 150 °C. The M3 suffix confirms halogen-free, RoHS-compliant construction and JESD201 Class 2 whisker resistance - critical for long-life automotive and industrial deployments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 90 V - maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 100 V / 111 V at IT = 1 mA - guaranteed breakdown threshold range for reliable triggering |
| VC @ IPPM | 146 V at 10.3 A - clamped voltage under 10/1000 µs surge, defining protected circuit voltage ceiling |
| PPPM | 1500 W - peak transient energy handling capability per IEC 61000-4-5 and ISO 7637-2 |
| ID @ VWM | 1.0 µA - ultra-low leakage at rated standoff, minimizing standby power loss |
| TJ max | +150 °C - extended junction temperature rating supports under-hood and high-ambient industrial use |
| Package | DO-215AB (SMCG) - low-profile SMD outline with cathode band marking, optimized for automated assembly |
Pinout & Package
Package: DO-215AB (SMCG), surface-mount gull-wing leaded case with cathode band marking. Dimensions: 7.87 mm × 9.64 mm × 2.41 mm (L × W × H), 0.31" × 0.38" mounting pad area per terminal.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal in forward bias | Connected to protected line (e.g., battery rail); conducts only during surge clamping |
| Cathode | Current exit terminal in forward bias; marked with band | Connected to ground or lower-potential reference; defines polarity-sensitive placement |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity, and mechanical shock |
| Glass passivated junction | Enhances surge robustness and long-term stability vs. epoxy-passivated alternatives |
| Halogen-free (M3) | Meets IPC-4101D/21 and JEDEC J-STD-020 MSL Level 1 (260 °C peak reflow) |
| Low incremental surge resistance | Enables tighter clamping (VC/VBR ratio = 1.46) and reduced let-through energy |
| MSL Level 1 | Zero floor life limitation - no baking required prior to reflow soldering |
Applications
| Automotive Power Rail Protection | Industrial DC Input Protection |
|---|---|
Use Scenario: Suppressing load-dump transients (ISO 7637-2 Pulse 5a) on 24 V truck battery lines feeding ECUs and body controllers. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between battery input and downstream DC/DC converter input. Use Value: Limits voltage to ≤146 V during 100 V/350 ms load dump, preventing damage to 36 V-rated input stages. | Use Scenario: Protecting programmable logic controller (PLC) 24 V DC power inputs against inductive switching spikes from solenoid drivers. IC Role / Device Role / Timing Role: Primary overvoltage clamp on main supply rail, coordinated with upstream fuse and downstream bulk capacitance. Use Value: Absorbs 1500 W surges without degradation, maintaining system uptime in factory automation environments. |
| Telecom DC Feeder Protection | Consumer Appliance Motor Drive Protection |
Use Scenario: Safeguarding remote radio head (RRH) power feeds in outdoor base stations exposed to lightning-induced surges. IC Role / Device Role / Timing Role: First-line transient suppressor on -48 V DC feeder line, upstream of DC-DC converters and PMICs. Use Value: Withstands repeated 10/1000 µs surges up to 10.3 A while maintaining <1 µA leakage at -48 V nominal. | Use Scenario: Clamping commutation spikes from brushed DC motors in smart home appliances (e.g., robotic vacuum cleaners). IC Role / Device Role / Timing Role: Unidirectional TVS across motor terminals or H-bridge supply rail to limit back-EMF transients. Use Value: Fast response (<1 ns) and 146 V clamping prevent latch-up in motor driver ICs rated for 160 V absolute maximum. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ90A-M3/86A | Same VWM (90 V), but SMA package (DO-214AC); lower PPPM (400 W); RθJA = 110 °C/W | Lower power handling limits use to sub-500 W surge environments; less thermal margin in confined layouts | Select when board space is constrained and surge threat level is moderate (e.g., consumer-grade I/O lines) |
| SMCJ90A-M3/86A | Same VWM (90 V), but SMC package (DO-214AB); higher PPPM (1500 W); identical VC (146 V); larger footprint | Requires 2.5× more PCB area; better heat spreading via larger copper pads; preferred for high-reliability industrial designs | Select when thermal performance and long-term surge endurance outweigh size constraints |
Compared with SMAJ90A-M3/86A and SMCJ90A-M3/86A, the SMCG90A-M3/9AT delivers identical clamping performance in a lower-profile, AEC-Q101-qualified DO-215AB package - making it optimal for space-constrained automotive modules where MSL Level 1 and halogen-free compliance are mandatory.
Availability
SMCG90A-M3/9AT is available at Aetrix Electronics and suitable for automotive ECU power protection, industrial PLC input conditioning, and telecom DC feeder safeguarding requiring stable component supply across multi-year production cycles.
Supply support for SMCG90A-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, power efficiency, and automotive qualification.
The SMCG series is part of Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in harsh-environment applications - including AEC-Q101-compliant automotive subsystems and industrial control systems demanding long-term parametric stability.
FAQ
What is the clamping voltage of the SMCG90A-M3/9AT under standard 10/1000 µs surge conditions?
The SMCG90A-M3/9AT has a maximum clamping voltage (VC) of 146 V at 10.3 A peak pulse current (IPPM) under the standardized 10/1000 µs waveform. This value is measured with the device mounted on 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal, per Vishay Document 88457. It defines the upper voltage limit imposed on protected circuits during surge events.
Is the SMCG90A-M3/9AT suitable for automotive applications?
Yes, the SMCG90A-M3/9AT is AEC-Q101 qualified and explicitly rated for automotive use per Vishay's documentation. Its halogen-free (M3) construction, MSL Level 1 rating, and guaranteed operation from –55 °C to +150 °C make it appropriate for engine control units, body electronics, and ADAS power supplies where transient immunity and long-term reliability are critical.
How does the M3 suffix affect the SMCG90A-M3/9AT's compliance and assembly process?
The M3 suffix indicates halogen-free, RoHS-compliant construction and JESD201 Class 2 whisker resistance. It also certifies compliance with J-STD-020 MSL Level 1, meaning the SMCG90A-M3/9AT can be reflow-soldered at peak temperatures up to 260 °C without preconditioning - eliminating bake steps and supporting high-yield automated assembly.
What is the standoff voltage and breakdown voltage range for the SMCG90A-M3/9AT?
The SMCG90A-M3/9AT has a reverse standoff voltage (VWM) of 90 V and a breakdown voltage (VBR) range of 100 V to 111 V at 1 mA test current (IT), per Vishay Document 88457. This ensures consistent turn-on behavior across production lots while maintaining sufficient margin above normal operating voltage to avoid false triggering.
Can the SMCG90A-M3/9AT be used in bidirectional configurations?
No - the SMCG90A-M3/9AT is a unidirectional TVS diode, as indicated by its "A" suffix and absence of "CA" in the part number. Bidirectional variants (e.g., SMCG90CA) exist in the same family but feature symmetric breakdown in both polarities. Using the SMCG90A-M3/9AT in reverse-biased mode risks permanent failure due to lack of reverse conduction capability.
SMCG90A-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):
- 90V
- Voltage - Breakdown (Min):
- 100V
- Voltage - Clamping (Max) @ Ipp:
- 146V
- Current - Peak Pulse (10/1000µs):
- 10.3A
- 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)
SMCG90A-M3/9AT FAQ
1.How can I place an order for SMCG90A-M3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG90A-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 SMCG90A-M3/9AT reliable?
The price and inventory of SMCG90A-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 SMCG90A-M3/9AT is usually 5 days.
3.What payment methods are accepted for SMCG90A-M3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG90A-M3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG90A-M3/9AT?
SMCG90A-M3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG90A-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 SMCG90A-M3/9AT?
For technical support, including SMCG90A-M3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG90A-M3/9AT requirements.
6.How does Aetrix verify that SMCG90A-M3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCG90A-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 SMCG90A-M3/9AT meets industry standards.
7.What is the process for return or replacement of SMCG90A-M3/9AT?
All SMCG90A-M3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCG90A-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 SMCG90A-M3/9AT part is unused and in its original packaging.
Return procedure for SMCG90A-M3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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