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Vishay General Semiconductor - Diodes Division SMCG90A-M3/57T
- Part No.:
- SMCG90A-M3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG90A-M3/57T.pdf
- Description:
- TVS DIODE 90VWM 146VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,117
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Product details
Overview
SMCG90A-M3/57T from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in the SMCG (DO-215AB) package, with a 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) under 10/1000 µs waveform - designed for robust overvoltage protection of automotive power rails and industrial DC inputs.
For engineers reviewing the SMCG90A-M3/57T datasheet, SMCG90A-M3/57T pinout, SMCG90A-M3/57T application, or SMCG90A-M3/57T equivalent, key selection criteria include clamping voltage (VC = 146 V at IPPM), AEC-Q101 qualification, halogen-free RoHS compliance (M3 suffix), and thermal resistance (RθJA = 75 °C/W) for high-reliability board-level surge suppression.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-band polarity marking, leveraging glass-passivated junction technology for stable avalanche behavior and fast response (<1 ns). Its 1500 W PPPM rating is validated on 8.0 mm × 8.0 mm copper pads per terminal, and it supports surge immunity up to 200 A IFSM (8.3 ms half-sine) in unidirectional configurations.
The SMCG90A-M3/57T is rated for TJ = –55 °C to +150 °C operation, meets MSL Level 1 per J-STD-020 (260 °C peak reflow), and features matte tin-plated leads compliant with J-STD-002 and JESD 22-B102 solderability standards - enabling compatibility with automated SMT assembly and automotive-grade reliability requirements.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 90 V - maximum continuous reverse operating voltage before clamping initiates |
| VBR (min/max) | 100 V / 111 V at IT = 1.0 mA - ensures predictable avalanche onset across production lot |
| VC @ IPPM | 146 V at 10.3 A (10/1000 µs) - defines worst-case clamped voltage seen by protected circuitry |
| PPPM | 1500 W - peak transient energy absorption capability under standardized surge waveform |
| RθJA | 75 °C/W - thermal resistance from junction to ambient on recommended 8 mm × 8 mm pad layout |
| TJ max | +150 °C - maximum junction temperature enabling use in under-hood automotive environments |
| AEC-Q101 | Qualified - validated for automotive electronics per stress-test requirements including HTGB, HTRB, and TCT |
Pinout & Package
Package: SMCG (DO-215AB) - low-profile, gull-wing surface-mount case with 2 terminals, UL 94 V-0 molding compound, and cathode band marking for unidirectional polarity.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry during forward conduction; tied to system ground or low-side reference | Provides return path during clamping; must be routed with low-inductance trace to minimize voltage overshoot |
| Cathode | Current exit during reverse-biased clamping; connected to protected line (e.g., 12 V rail) | Band-marked terminal; carries full surge current into ground plane during transients - requires direct thermal pad connection |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualification | Validated for automotive applications including engine control units and body electronics requiring long-term reliability under thermal cycling and humidity |
| Halogen-free & RoHS-compliant (M3) | Meets environmental compliance mandates for Tier-1 automotive suppliers without compromising surge performance or thermal stability |
| Low incremental surge resistance | Enables tighter clamping (VC = 146 V) versus competing 90 V TVS devices, reducing stress on downstream MOSFETs and regulators |
| MSL Level 1 rating | Supports standard reflow profiles up to 260 °C peak without preconditioning - eliminates moisture sensitivity handling overhead |
| Glass-passivated junction | Ensures consistent VBR tolerance (±5.5%) and long-term parameter stability across temperature and lifetime |
Applications
| Automotive Power Rail Protection | Industrial DC Input Surge Suppression |
|---|---|
Use Scenario: Protecting 12 V/24 V battery-fed ECUs against load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power input and ground to clamp transients before they reach LDOs or microcontrollers. Use Value: With VC = 146 V and PPPM = 1500 W, SMCG90A-M3/57T limits voltage excursions below 150 V during 100 V/1000 µs surges - preserving integrity of 16 V-rated input stages. | Use Scenario: Safeguarding programmable logic controller (PLC) analog input modules from field-wiring induced surges. IC Role / Device Role / Timing Role: Front-end transient suppressor on 24 V sensor supply lines, mounted directly at connector entry point. Use Value: RθJA = 75 °C/W and TJ max = +150 °C allow sustained operation in enclosed cabinets up to 85 °C ambient - maintaining clamping performance over full industrial temperature range. |
| Telecom DC Power Interface | Motor Drive Gate Driver Protection |
Use Scenario: Shielding PoE-powered equipment (e.g., IP cameras) from Ethernet cable-induced ESD and lightning-induced surges. IC Role / Device Role / Timing Role: Secondary-level TVS on 48 V DC input stage, downstream of primary isolation, to absorb residual common-mode transients. Use Value: VWM = 90 V provides 10 V margin above nominal 48 V rail while enabling fast response (<1 ns) to sub-microsecond ESD events - meeting IEC 61000-4-2 Level 4 requirements. | Use Scenario: Clamping gate-source voltage spikes on high-side N-channel MOSFETs in half-bridge motor drivers. IC Role / Device Role / Timing Role: Bidirectional-capable variant not used; this unidirectional SMCG90A-M3/57T applied only where cathode connects to gate and anode to source (reverse-biased clamping). Use Value: Low clamping voltage (VC = 146 V) prevents gate oxide breakdown during Miller-induced voltage overshoot - critical for 100 V-rated MOSFETs operating near limit. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ90A-E3/57T | Same VWM (90 V), lower PPPM (400 W), SMA (DO-214AC) package, non-AEC-Q101 | Limited to consumer/industrial use; insufficient for automotive load dump testing | Select when cost-sensitive, non-automotive designs require basic 90 V clamping with smaller footprint |
| SMCJ90A-M3/57T | Same VWM (90 V), higher PPPM (1500 W), identical DO-215AB package, AEC-Q101 qualified, but M3 suffix denotes same halogen-free compliance | Functionally identical clamping performance and qualification - differs only in internal die construction and minor VBR distribution | Valid alternative if SMCG90A-M3/57T is unavailable; no PCB or thermal redesign needed |
Compared with SMAJ90A-E3/57T, SMCG90A-M3/57T delivers 3.75× higher surge power handling and automotive qualification; versus SMCJ90A-M3/57T, it offers equivalent protection specs but may differ in leakage and long-term stability due to distinct chip process - both alternatives retain DO-215AB mechanical compatibility.
Availability
SMCG90A-M3/57T is available at Aetrix Electronics and suitable for automotive electronic control units, industrial programmable logic controllers, and telecom power interface circuits requiring stable component supply with AEC-Q101 assurance and halogen-free compliance.
Supply support for SMCG90A-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, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SMCG series is engineered for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom systems where robustness against load dump, ESD, and lightning-induced surges is mission-critical.
FAQ
What is the clamping voltage of the SMCG90A-M3/57T under standard surge conditions?
The SMCG90A-M3/57T has a maximum clamping voltage (VC) of 146 V when subjected to a 10/1000 µs waveform at its rated peak pulse current of 10.3 A. This value is measured per JEDEC standards and reflects worst-case voltage seen by protected circuitry during transient events - a critical parameter for ensuring downstream components like 100 V MOSFETs remain within safe operating limits. The SMCG90A-M3/57T achieves this with low incremental surge resistance inherent to its glass-passivated junction design.
Is the SMCG90A-M3/57T suitable for automotive applications?
Yes, the SMCG90A-M3/57T is AEC-Q101 qualified and specifically designed for automotive use, including engine control units, body electronics, and infotainment power supplies. Its qualification covers stress tests such as high-temperature reverse bias (HTRB), high-temperature gate bias (HTGB), and temperature cycling (TCT). The M3 suffix confirms halogen-free, RoHS-compliant construction required by Tier-1 automotive suppliers - making SMCG90A-M3/57T appropriate for under-hood and chassis-mounted systems operating up to +125 °C ambient.
What does the "M3" suffix mean in SMCG90A-M3/57T?
The "M3" suffix in SMCG90A-M3/57T indicates halogen-free, RoHS-compliant construction with industrial-grade reliability and JESD 201 Class 2 whisker resistance. It distinguishes this variant from E3 (standard RoHS) and HM3 (AEC-Q101 + halogen-free) versions. All M3 devices meet UL 94 V-0 flammability rating and feature matte tin-plated leads solderable per J-STD-002. For SMCG90A-M3/57T, the M3 designation assures compliance without sacrificing the 1500 W PPPM rating or thermal performance - critical for high-volume automotive manufacturing.
How does the SMCG90A-M3/57T compare to SMAJ90A in terms of surge capability?
The SMCG90A-M3/57T delivers 1500 W peak pulse power (PPPM), whereas SMAJ90A is rated at only 400 W - a 275 % increase in transient energy absorption. Both share 90 V VWM and similar VBR ranges, but SMCG90A-M3/57T uses the larger DO-215AB (SMCG) package versus SMAJ's DO-214AC (SMA), enabling superior thermal dissipation (RθJA = 75 °C/W vs. ~100 °C/W). Unlike SMAJ90A, SMCG90A-M3/57T is AEC-Q101 qualified - confirming suitability for automotive load dump testing where SMAJ90A would fail. The SMCG90A-M3/57T thus supports more demanding surge standards including ISO 7637-2 Pulse 5a.
What is the recommended PCB layout for optimal thermal and electrical performance of SMCG90A-M3/57T?
Vishay specifies mounting SMCG90A-M3/57T on 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal to achieve rated PPPM and thermal resistance (RθJA = 75 °C/W). Use minimum 2 oz copper with thermal vias under pads to internal ground planes. Keep traces short and wide between cathode and protected line, and anode and ground - minimizing inductance to prevent voltage overshoot during fast transients. Avoid solder mask over thermal pads. The SMCG90A-M3/57T's gull-wing leads require standard reflow profile (peak 260 °C, MSL Level 1), with no pre-baking needed.
SMCG90A-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):
- 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-M3/57T FAQ
1.How can I place an order for SMCG90A-M3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG90A-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 SMCG90A-M3/57T reliable?
The price and inventory of SMCG90A-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 SMCG90A-M3/57T is usually 5 days.
3.What payment methods are accepted for SMCG90A-M3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG90A-M3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG90A-M3/57T?
SMCG90A-M3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG90A-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 SMCG90A-M3/57T?
For technical support, including SMCG90A-M3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG90A-M3/57T requirements.
6.How does Aetrix verify that SMCG90A-M3/57T is sourced from the original manufacturer or authorized distributors?
All SMCG90A-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 SMCG90A-M3/57T meets industry standards.
7.What is the process for return or replacement of SMCG90A-M3/57T?
All SMCG90A-M3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCG90A-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 SMCG90A-M3/57T part is unused and in its original packaging.
Return procedure for SMCG90A-M3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG90A-M3/57T Tags
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