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Vishay General Semiconductor - Diodes Division SMCG58CA-E3/9AT
- Part No.:
- SMCG58CA-E3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG58CA-E3/9AT.pdf
- Description:
- TVS DIODE 58VWM 93VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:6,912
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Product details
Overview
SMCG58CA-E3/9AT 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 58 V stand-off voltage (VWM), 64.4–71.2 V breakdown voltage (VBR) at 1 mA, 1500 W peak pulse power (10/1000 µs), clamping voltage of 93 V at 16 A IPPM, and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the SMCG58CA-E3/9AT datasheet, SMCG58CA-E3/9AT pinout, SMCG58CA-E3/9AT application, or SMCG58CA-E3/9AT 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 MSL-1 solderability are critical.
Technical Context
The SMCG58CA-E3/9AT operates as a symmetrical silicon avalanche diode with bidirectional conduction, enabling identical clamping behavior in both polarities-essential for AC-coupled or floating signal paths. Its glass-passivated junction ensures stable VBR tolerance and long-term reliability under repetitive surge stress.
Thermal performance is defined by RθJA = 75 °C/W and RθJL = 15 °C/W, supporting operation up to TJ = +150 °C when mounted on 8.0 mm × 8.0 mm copper pads per terminal. The device meets J-STD-020 MSL Level 1 and passes JESD201 Class 2 whisker testing with matte tin-plated leads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 58 V - Maximum continuous reverse operating voltage before clamping begins; defines safe operating margin for 48 V nominal systems. |
| VBR (min/max) | 64.4 V / 71.2 V at IT = 1 mA - Tight breakdown window ensures predictable turn-on and minimal variation across production lots. |
| VC @ IPPM | 93 V at 16 A - Clamping voltage during 10/1000 µs surge; yields clamping ratio VC/VWM ≈ 1.60 for effective overvoltage limiting. |
| PPPM | 1500 W - Peak pulse power handling capability; supports IEC 61000-4-5 Level 4 (4 kV/2 Ω) surge immunity with margin. |
| ID @ VWM | 1.0 µA - Ultra-low leakage at rated stand-off voltage; preserves signal integrity in high-impedance sensor or data lines. |
| TJ max. | +150 °C - Junction temperature limit enabling use in under-hood automotive environments and industrial enclosures. |
| Package | SMCG (DO-215AB) - Low-profile surface-mount package with gull-wing leads; compatible with automated SMT placement and reflow. |
Pinout & Package
SMCG58CA-E3/9AT uses the SMCG (DO-215AB) package: a symmetrical, bidirectional surface-mount case with two terminals and no polarity marking. The device has no cathode/anode designation; both terminals are functionally identical.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Bidirectional Surge Path | Acts as either anode or cathode depending on transient polarity; enables clamping on both positive and negative excursions. |
| Terminal 2 | Bidirectional Surge Path | Electrically identical to Terminal 1; forms a symmetric two-terminal protection element with no DC bias dependency. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, body electronics, and ADAS sensor interfaces per stress test requirements. |
| MSL Level 1 (260 °C peak) | Enables single-reflow assembly without moisture sensitivity concerns; eliminates bake-out requirement in standard SMT lines. |
| Glass passivated junction | Provides stable electrical parameters over time and temperature; resists degradation from humidity, thermal cycling, and surge fatigue. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ESD, inductive switching), improving protection effectiveness. |
| UL 94 V-0 molding compound | Ensures flame-retardant housing suitable for safety-critical industrial and transportation equipment meeting regulatory compliance. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting CAN FD and LIN bus transceivers 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 reaching PHY layer. Use Value: Maintains signal integrity during 1500 W surges while adding <1 pF capacitance-no impact on 5 Mbps CAN FD timing. |
Use Scenario: Safeguarding 24 V digital input channels in programmable logic controllers against field-wiring faults and relay coil kickback. IC Role / Device Role / Timing Role: Primary overvoltage clamp on dry-contact inputs, absorbing 8.3 ms half-sine surges up to 200 A IFSM. Use Value: Prevents false triggering and latch-up in optocoupler input stages without requiring series impedance or response delay. |
| Telecom Line Interface | Consumer Power Adapter ESD Shielding |
|
Use Scenario: Protecting Ethernet PHY magnetics and PoE injectors from lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Secondary-level TVS on secondary-side DC lines (e.g., 48 V PSE output), coordinated with primary GDT. Use Value: Limits let-through voltage to <93 V during 10/1000 µs surges, keeping downstream DC-DC converters within absolute maximum ratings. |
Use Scenario: ESD suppression on USB-C CC and VBUS lines in compact wall adapters subject to IEC 61000-4-2 ±15 kV contact discharge. IC Role / Device Role / Timing Role: Fast-response clamping element placed adjacent to connector to shunt ESD current before IC pins. Use Value: Achieves sub-nanosecond response with <1 µA leakage, preserving battery drain specs and USB enumeration timing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ58CA | Same VWM (58 V) and PPPM (400 W), but lower power rating; SMA package (DO-214AC), larger footprint and higher RθJA (110 °C/W). | Limited to lower-energy surges (IEC 61000-4-5 Level 2); unsuitable for automotive load dump or industrial 4 kV testing. | Select SMAJ58CA only for cost-sensitive, non-automotive applications where board space allows larger package and thermal derating is acceptable. |
| SMCJ58CA | Identical VWM (58 V), higher PPPM (1500 W), same DO-214AB package-but not AEC-Q101 qualified and lacks MSL-1 rating. | Not approved for automotive use; requires additional moisture handling and qualification effort for industrial deployments requiring long-term reliability. | Choose SMCJ58CA for non-automotive 1500 W protection where AEC-Q101 and MSL-1 are not mandated, e.g., commercial telecom infrastructure. |
Compared with SMAJ58CA and SMCJ58CA, SMCG58CA-E3/9AT uniquely combines AEC-Q101 qualification, MSL Level 1, and 1500 W surge capability in the compact SMCG package-making it the only option for space-constrained, automotive-grade, high-reliability transient suppression without layout or qualification compromise.
Availability
SMCG58CA-E3/9AT is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom line card designs requiring stable component supply, full traceability, and long-term lifecycle support.
Supply support for SMCG58CA-E3/9AT 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 to deliver high-power, AEC-Q101-compliant TVS protection in ultra-low-profile surface-mount packages for next-generation automotive and industrial electronics where space, thermal performance, and qualification rigor are critical.
FAQ
What is the clamping voltage of SMCG58CA-E3/9AT at its rated peak pulse current?
The SMCG58CA-E3/9AT has a maximum clamping voltage (VC) of 93 V at 16 A peak pulse current (IPPM), measured under the standard 10/1000 µs waveform. This value is confirmed in the Electrical Characteristics table on page 2 of Vishay document 88457 and defines the upper voltage limit imposed on protected circuitry during surge events. The clamping performance directly supports compliance with IEC 61000-4-5 surge immunity requirements for 48 V systems.
Is SMCG58CA-E3/9AT suitable for automotive applications?
Yes, SMCG58CA-E3/9AT is AEC-Q101 qualified, as explicitly stated in the Mechanical Data section and confirmed in the Ratings and Characteristics Curves notes on page 3 of Vishay document 88457. It is rated for operation from –55 °C to +150 °C and meets MSL Level 1, making it suitable for under-hood and chassis-mounted automotive electronics including sensor interfaces, body control modules, and infotainment power rails.
What does the "CA" suffix indicate in SMCG58CA-E3/9AT?
The "CA" suffix in SMCG58CA-E3/9AT denotes a bidirectional configuration, meaning the device provides symmetrical transient suppression for both positive and negative voltage excursions. As specified in the "DEVICES FOR BIDIRECTION APPLICATIONS" section of the Vishay datasheet, electrical characteristics-including VBR, VC, and IPPM-apply identically in both directions, eliminating the need for polarity-aware layout or external circuitry.
What is the thermal resistance of SMCG58CA-E3/9AT, and how does it affect PCB layout?
SMCG58CA-E3/9AT has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W and junction-to-lead resistance (RθJL) of 15 °C/W, measured on the minimum recommended 8.0 mm × 8.0 mm copper pad layout per terminal. To maintain TJ ≤ 150 °C under 6.5 W steady-state dissipation, designers must allocate sufficient copper area and consider airflow or proximity to heat sources-especially in sealed automotive enclosures.
How does the SMCG package differ from SMA or SMC packages in practical assembly?
The SMCG (DO-215AB) package used by SMCG58CA-E3/9AT features gull-wing leads with tighter pitch and lower profile than SMA (DO-214AC) or SMC (DO-214AB), enabling higher board density and compatibility with fine-pitch automated placement. Unlike SMA/SMC, SMCG is rated MSL Level 1 with 260 °C peak reflow tolerance-eliminating pre-bake steps-and its matte tin plating meets J-STD-002 solderability standards without post-reflow cleaning.
SMCG58CA-E3/9AT 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):
- 58V
- Voltage - Breakdown (Min):
- 64.4V
- Voltage - Clamping (Max) @ Ipp:
- 93V
- Current - Peak Pulse (10/1000µs):
- 16A
- 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)
SMCG58CA-E3/9AT FAQ
1.How can I place an order for SMCG58CA-E3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG58CA-E3/9AT 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 SMCG58CA-E3/9AT reliable?
The price and inventory of SMCG58CA-E3/9AT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG58CA-E3/9AT is usually 5 days.
3.What payment methods are accepted for SMCG58CA-E3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG58CA-E3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG58CA-E3/9AT?
SMCG58CA-E3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG58CA-E3/9AT 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 SMCG58CA-E3/9AT?
For technical support, including SMCG58CA-E3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG58CA-E3/9AT requirements.
6.How does Aetrix verify that SMCG58CA-E3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCG58CA-E3/9AT 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 SMCG58CA-E3/9AT meets industry standards.
7.What is the process for return or replacement of SMCG58CA-E3/9AT?
All SMCG58CA-E3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCG58CA-E3/9AT, 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 SMCG58CA-E3/9AT part is unused and in its original packaging.
Return procedure for SMCG58CA-E3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG58CA-E3/9AT Tags
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