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Vishay General Semiconductor - Diodes Division SMCG100CA-M3/9AT
- Part No.:
- SMCG100CA-M3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG100CA-M3/9AT.pdf
- Description:
- TVS DIODE 100VWM 162VC DO215AB
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SMCG100CA-M3/9AT from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in the SMCG (DO-215AB) package, designed for high-energy surge protection on signal and power lines. It features a 100 V stand-off voltage (VWM), 111–123 V breakdown voltage (VBR) at 1 mA, 1500 W peak pulse power (10/1000 µs), clamping voltage of 162 V at 9.3 A IPPM, and AEC-Q101 qualification for automotive use.
For engineers reviewing the SMCG100CA-M3/9AT datasheet, SMCG100CA-M3/9AT pinout, SMCG100CA-M3/9AT application, or SMCG100CA-M3/9AT equivalent, this device is selected for robust ESD and lightning surge protection in automotive sensor interfaces, industrial I/O modules, and telecom line cards where bidirectional clamping, low clamping ratio, and halogen-free RoHS compliance are required.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, with identical VBR min/max (111–123 V), ID ≤ 1.0 µA at VWM, and VC = 162 V under 9.3 A 10/1000 µs surge. Its glass-passivated junction ensures stable leakage and fast response (<1 ns), while the DO-215AB package supports automated SMT placement and meets MSL Level 1 (260 °C reflow).
Thermal performance is defined by RθJA = 75 °C/W and RθJL = 15 °C/W, enabling reliable operation up to TJ = +150 °C. The device is rated for non-repetitive peak forward surge current (IFSM) only in unidirectional variants - not applicable here - and exhibits no polarity marking due to its bidirectional construction.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 100 V - maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 111 V / 123 V at 1 mA - guaranteed breakdown threshold range for design margining |
| VC @ IPPM | 162 V at 9.3 A - clamped voltage during full-rated 10/1000 µs surge, defining protected circuit stress |
| PPPM | 1500 W - peak transient energy absorption capability per single event |
| ID @ VWM | ≤ 1.0 µA - ultra-low leakage preserves signal integrity in high-impedance circuits |
| TJ max. | +150 °C - enables under-hood automotive deployment without derating |
| Qualification | AEC-Q101 qualified - validated for automotive-grade reliability and lifetime performance |
| Package | SMCG (DO-215AB) - surface-mount gull-wing leadframe with 8.0 mm × 8.0 mm thermal pad footprint |
Pinout & Package
SMCG100CA-M3/9AT uses the SMCG (DO-215AB) package: a dual-leaded, gull-wing surface-mount outline with symmetrical terminals and no polarity marking. The case is molded with UL 94 V-0 compliant compound; leads are matte tin-plated and solderable per J-STD-002/JESD 22-B102. Thermal pads must be 0.31″ × 0.31″ (8.0 mm × 8.0 mm) copper for rated PPPM.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (bidirectional) | Either terminal serves as anode or cathode depending on transient polarity - no functional distinction |
| Terminal 2 | Anode/Cathode (bidirectional) | Electrically identical to Terminal 1; device conducts equally in both directions above VBR |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating lines without polarity concerns |
| AEC-Q101 qualification | Validates reliability for automotive applications including engine control, ADAS sensors, and body electronics |
| Halogen-free & RoHS | M3 suffix confirms halogen-free molding compound and lead finish meeting industrial and automotive environmental requirements |
| Low incremental surge resistance | Minimizes voltage overshoot during fast transients, improving protection margin for downstream ICs |
| MSL Level 1 rating | Supports standard SMT reflow profiles up to 260 °C peak without moisture-related failure |
| Glass-passivated junction | Ensures stable VBR and low leakage over temperature and lifetime, critical for long-term field reliability |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN, LIN, or analog sensor inputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional TVS placed at connector interface to clamp ±100 V transients before signal conditioning circuitry. Use Value: With 162 V clamping at 9.3 A and AEC-Q101 qualification, SMCG100CA-M3/9AT prevents latch-up or damage to 5 V or 12 V sensor front-ends under harsh automotive conditions. |
Use Scenario: Safeguarding 24 V digital input channels in programmable logic controllers against inductive switching spikes from solenoids and relays. IC Role / Device Role / Timing Role: Parallel-connected TVS on each input line to divert >1 kV/10/1000 µs surges away from optocoupler or Schmitt trigger inputs. Use Value: 1500 W PPPM and 100 V VWM allow reliable operation across wide industrial supply tolerances while maintaining <1 µA leakage at nominal voltage. |
| Telecom Line Interface | Consumer Power Adapter ESD Protection |
Use Scenario: Shielding Ethernet PHY or RS-485 transceivers from lightning-induced surges on outdoor or building-entry cabling. IC Role / Device Role / Timing Role: Primary-level TVS on differential pair, paired with common-mode chokes and secondary GDTs for staged protection. Use Value: Symmetrical 111–123 V VBR and 162 V VC ensure balanced clamping on both lines, preserving signal integrity and common-mode rejection during surge events. |
Use Scenario: Adding secondary-side surge immunity to USB-C or barrel-jack DC inputs in smart home hubs and audio devices exposed to user-handling ESD. IC Role / Device Role / Timing Role: Final-stage TVS between input capacitor and DC-DC converter input to absorb residual 8 kV contact ESD per IEC 61000-4-2. Use Value: Halogen-free M3 construction and 150 °C TJ max support compact, thermally constrained consumer enclosures without compromising safety or compliance. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ100CA | Same VWM (100 V) and PPPM (1500 W), but SMA (DO-214AC) package - 30% larger footprint and higher RθJA (90 °C/W) | Limited to lower-power or less thermally constrained designs; lacks AEC-Q101 qualification | Select when DO-215AB footprint is unavailable and automotive qualification is not required |
| SMCJ100CA | Higher PPPM (1500 W same), but VBR range wider (111–133 V); DO-214AB package with larger thermal pad area (10 mm × 10 mm) | Better thermal handling for repetitive surges; not AEC-Q101 qualified despite automotive use history | Prefer for industrial systems needing enhanced thermal margin where AEC-Q101 is optional |
Compared with SMAJ100CA and SMCJ100CA, SMCG100CA-M3/9AT delivers superior automotive compliance (AEC-Q101), tighter VBR tolerance, and optimized SMT manufacturability in the smaller DO-215AB outline - making it the preferred choice for space-constrained, high-reliability automotive and industrial edge nodes.
Availability
SMCG100CA-M3/9AT is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom line card protection requiring stable component supply, halogen-free compliance, and AEC-Q101 validation.
Supply support for SMCG100CA-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 application-specific optimization.
The SMCG series was developed specifically for high-power, surface-mount transient suppression in automotive and industrial environments - prioritizing AEC-Q101 compliance, low clamping ratio, and robust thermal performance in compact gull-wing packages.
FAQ
What does the "CA" suffix indicate in SMCG100CA-M3/9AT?
The "CA" suffix denotes a bidirectional configuration: SMCG100CA-M3/9AT provides symmetrical transient suppression for both positive and negative voltage excursions, with identical electrical characteristics in either direction. Unlike unidirectional variants (e.g., SMCG100A), it has no cathode band marking and is used where polarity of transients cannot be assumed - such as AC signal lines, differential buses, or floating grounds. This makes SMCG100CA-M3/9AT ideal for protecting bidirectional interfaces like RS-485 or CAN without external polarity management.
Is SMCG100CA-M3/9AT suitable for automotive applications?
Yes, SMCG100CA-M3/9AT is AEC-Q101 qualified - a rigorous stress-test standard for discrete semiconductors in automotive electronics. It has been validated for temperature cycling, humidity bias, mechanical shock, and high-temperature operating life up to +150 °C junction temperature. Its halogen-free (M3) construction and DO-215AB package meet automotive PCB assembly and environmental requirements. Engineers specify SMCG100CA-M3/9AT for under-hood and cabin applications including ADAS camera modules, battery management system communication lines, and body control unit I/O protection.
How does the SMCG (DO-215AB) package compare to SMA or SMC packages for thermal performance?
The SMCG (DO-215AB) package offers lower thermal resistance than SMA (RθJA ≈ 90 °C/W) and matches SMC's thermal capability (RθJA = 75 °C/W) while using a smaller footprint. Its gull-wing leads and optimized 8.0 mm × 8.0 mm copper pad layout enable efficient heat dissipation during 10/1000 µs surges. Unlike SMC's larger body, SMCG maintains high power density - critical for modern automotive ECUs with tight board space. For designs using SMCG100CA-M3/9AT, maintaining the specified pad size is essential to achieve rated 1500 W PPPM and avoid thermal runaway.
What is the clamping behavior of SMCG100CA-M3/9AT under a 10/1000 µs surge?
Under a standardized 10/1000 µs surge waveform, SMCG100CA-M3/9AT clamps at 162 V when subjected to its rated peak pulse current of 9.3 A (IPPM). This clamping voltage defines the maximum voltage seen by downstream circuitry during surge events. The device achieves this with low incremental surge resistance, minimizing overshoot and ensuring predictable protection margins. Because it is bidirectional, this clamping occurs identically for both polarities - a key advantage over unidirectional TVS diodes that require careful orientation. Designers use the 162 V VC value in worst-case analysis for SMCG100CA-M3/9AT-protected circuits.
Does SMCG100CA-M3/9AT have polarity markings on the package?
No, SMCG100CA-M3/9AT has no polarity markings - consistent with its bidirectional design. Unlike unidirectional TVS diodes (e.g., SMCG100A), which feature a cathode band, the CA variant is electrically symmetrical: either terminal functions as anode or cathode depending on instantaneous voltage polarity. This eliminates orientation errors during automated placement and simplifies layout for differential or AC-coupled signals. The absence of marking is intentional and documented in Vishay's mechanical drawings and ordering information - confirming that SMCG100CA-M3/9AT is fully interchangeable regardless of PCB pad assignment.
SMCG100CA-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:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 100V
- Voltage - Breakdown (Min):
- 111V
- Voltage - Clamping (Max) @ Ipp:
- 162V
- Current - Peak Pulse (10/1000µs):
- 9.3A
- 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)
SMCG100CA-M3/9AT FAQ
1.How can I place an order for SMCG100CA-M3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG100CA-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 SMCG100CA-M3/9AT reliable?
The price and inventory of SMCG100CA-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 SMCG100CA-M3/9AT is usually 5 days.
3.What payment methods are accepted for SMCG100CA-M3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG100CA-M3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG100CA-M3/9AT?
SMCG100CA-M3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG100CA-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 SMCG100CA-M3/9AT?
For technical support, including SMCG100CA-M3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG100CA-M3/9AT requirements.
6.How does Aetrix verify that SMCG100CA-M3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCG100CA-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 SMCG100CA-M3/9AT meets industry standards.
7.What is the process for return or replacement of SMCG100CA-M3/9AT?
All SMCG100CA-M3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCG100CA-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 SMCG100CA-M3/9AT part is unused and in its original packaging.
Return procedure for SMCG100CA-M3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG100CA-M3/9AT Tags
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