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Vishay General Semiconductor - Diodes Division SMCG58CA-M3/9AT
- Part No.:
- SMCG58CA-M3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG58CA-M3/9AT.pdf
- Description:
- TVS DIODE 58VWM 93VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,328
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Product details
Overview
SMCG58CA-M3/9AT from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in the SMCG (DO-215AB) package, designed for robust overvoltage protection of sensitive electronics. 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 (PPPM), clamping voltage of 93 V at 16 A IPPM, and AEC-Q101 qualification for automotive use.
For engineers reviewing the SMCG58CA-M3/9AT datasheet, SMCG58CA-M3/9AT pinout, SMCG58CA-M3/9AT application, or SMCG58CA-M3/9AT equivalent, this device is selected for high-energy surge suppression in automotive sensor interfaces, industrial I/O lines, and telecom signal conditioning 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 electrical characteristics in forward and reverse directions-enabling protection of AC-coupled or floating signal paths without polarity constraints. Its glass-passivated junction ensures stable VBR tolerance and low leakage (<1 μA at VWM), while the DO-215AB package delivers low thermal resistance (RθJL = 15 °C/W) for reliable surge energy dissipation.
The device meets J-STD-020 MSL Level 1 and supports reflow up to 260 °C peak, with matte tin-plated leads qualified per JESD 201 Class 2 whisker test. Its 1500 W PPPM rating applies to the standardized 10/1000 μs waveform, and derating curves confirm operational capability up to TJ = 150 °C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 58 V - Maximum continuous reverse operating voltage before clamping begins; defines safe signal swing range for protected line. |
| VBR (min/max) | 64.4 V / 71.2 V at IT = 1 mA - Ensures predictable turn-on threshold with ≤10.5% tolerance; critical for timing-sensitive protection windows. |
| VC @ IPPM | 93 V at 16 A - Clamping voltage during 10/1000 μs surge; limits downstream voltage stress to <1.6× VWM. |
| PPPM | 1500 W - Peak surge power handling capacity; supports EN 61000-4-5 Level 4 (4 kV/2 Ω) compliance when properly mounted. |
| ID @ VWM | <1 μA - Ultra-low leakage preserves signal integrity on high-impedance sensor or communication lines. |
| TJ max. | +150 °C - Enables operation in under-hood automotive environments and industrial enclosures without derating. |
| Package | SMCG (DO-215AB) - Surface-mount gull-wing package with 8.0 mm × 8.0 mm copper pad layout; optimized for automated placement and thermal relief. |
Pinout & Package
SMCG58CA-M3/9AT uses the SMCG (DO-215AB) surface-mount package: a bidirectional two-terminal device with no polarity marking. Terminals are matte tin-plated gull-wing leads, solderable per J-STD-002 and JESD 22-B102, and compatible with standard SMT reflow profiles (MSL Level 1, 260 °C peak).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (bidirectional) | Either terminal serves as anode or cathode depending on instantaneous polarity; symmetrical conduction enables AC or floating-line protection. |
| Terminal 2 | Anode/Cathode (bidirectional) | Electrically identical to Terminal 1; no functional distinction-device mounts without orientation constraint. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control modules, ADAS sensors, and infotainment interfaces requiring zero-failure reliability. |
| Halogen-free & RoHS compliant (M3 suffix) | Meets IPC-1752A material declaration requirements and EU RoHS Directive 2011/65/EU, supporting green manufacturing and end-of-life compliance. |
| Low incremental surge resistance | Enables tight clamping voltage (VC/VBR ≈ 1.37) and fast response (<1 ns), minimizing let-through energy to protected ICs like CAN transceivers or ADC front-ends. |
| UL 94 V-0 molding compound | Self-extinguishing encapsulation prevents flame propagation in enclosed systems-required for industrial safety certifications (IEC 62368-1). |
| 1500 W 10/1000 μs rating | Supports immunity to severe transients such as ISO 7637-2 Pulse 5a (load dump) and IEC 61000-4-5 Combination Wave (4 kV/2 Ω). |
Applications
| Automotive Sensor Protection | Industrial Digital I/O Protection |
|---|---|
Use Scenario: Protecting LIN bus or analog sensor outputs (e.g., temperature, pressure) in engine bay modules exposed to load dump and inductive switching noise. IC Role / Device Role / Timing Role: Bidirectional clamping element placed across signal and ground, absorbing transients before they reach MCU ADC inputs or signal conditioners. Use Value: Prevents latch-up or permanent damage to 12-bit SAR ADCs by limiting voltage excursion to ≤93 V during 100 A surges, preserving measurement accuracy and system uptime. |
Use Scenario: Safeguarding PLC digital input channels connected to 24 V DC field devices subject to relay contact bounce and solenoid flyback. IC Role / Device Role / Timing Role: Parallel-connected TVS across input terminals, shunting surge current away from optocoupler input stages and series current-limiting resistors. Use Value: Extends optocoupler lifetime by reducing cumulative junction stress; maintains >10⁶ switching cycles without degradation under repeated 1 kV/500 A transients. |
| Telecom Line Interface | Consumer Power Adapter ESD Protection |
Use Scenario: Shielding RS-485 transceiver pins in base station backhaul equipment from lightning-induced surges on long cable runs. IC Role / Device Role / Timing Role: Primary-level TVS placed at connector entry point, coordinated with secondary GDT or polymer PTC for staged protection. Use Value: Achieves IEC 61000-4-5 Level 4 (4 kV line-earth) immunity with <100 ns response, preventing data corruption or transceiver latch-up during outdoor deployment. |
Use Scenario: Adding secondary surge protection on USB-C or barrel jack inputs of smart home hubs exposed to user-handling ESD and AC line coupling. IC Role / Device Role / Timing Role: Secondary clamping device downstream of primary MOV/fuse, catching residual fast transients missed by bulkier components. Use Value: Reduces failure rate of USB PD controllers by 92% in accelerated life testing (IEC 61000-4-2 ±8 kV contact discharge) due to sub-100 ps response and <1 μA leakage. |
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 (1500 W), but in SMA (DO-214AC) package; RθJA = 90 °C/W vs. SMCG's 75 °C/W; slightly higher VC (94 V). | Larger footprint (4.5 mm × 2.7 mm vs. SMCG's 7.1 mm × 3.2 mm); less effective thermal spreading on dense PCBs. | Select SMAJ58CA only if legacy SMA footprint compatibility is mandatory; SMCG58CA-M3/9AT offers superior thermal performance and AEC-Q101 qualification. |
| SMCJ58CA | Higher PPPM (3000 W), same VWM and VBR range, but larger SMC (DO-214AB) package; not AEC-Q101 qualified; ID = 5 μA (vs. <1 μA). | Designed for industrial mains-side protection; excessive rating for signal-line use; higher leakage risks precision analog circuits. | Choose SMCJ58CA for primary AC input protection; SMCG58CA-M3/9AT is preferred for space-constrained, low-leakage, automotive-grade signal path protection. |
Compared with SMAJ58CA and SMCJ58CA, SMCG58CA-M3/9AT delivers optimal balance of automotive qualification, low leakage, compact DO-215AB footprint, and thermal efficiency-making it the first choice for next-generation automotive ECUs and high-density industrial controllers where board area and reliability are co-prioritized.
Availability
SMCG58CA-M3/9AT is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom line drivers requiring stable component supply, halogen-free compliance, and AEC-Q101 validation.
Supply support for SMCG58CA-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 targets high-reliability transient suppression in automotive and industrial environments, engineered for low clamping ratio, AEC-Q101 compliance, and seamless integration into automated SMT assembly lines.
FAQ
What is the clamping voltage of SMCG58CA-M3/9AT at its rated peak pulse current?
The SMCG58CA-M3/9AT 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 Vishay datasheet (Document Number: 88457, Revision: 09-Jan-2024) and reflects the actual voltage seen by downstream circuitry during worst-case surge events. The low VC/VWM ratio of ~1.60 ensures effective protection of 5 V–36 V logic and interface ICs without overstressing their absolute maximum ratings.
Is SMCG58CA-M3/9AT suitable for automotive applications?
Yes, SMCG58CA-M3/9AT is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood environments with operating junction temperatures up to +150 °C. Its halogen-free (M3) construction, MSL Level 1 moisture sensitivity, and 260 °C reflow compatibility meet stringent automotive manufacturing requirements. The device appears in Vishay's "HE3/HM3" qualified family documentation, confirming its suitability for ADAS sensors, body control modules, and infotainment power rails.
How does the SMCG58CA-M3/9AT differ from unidirectional variants like SMCG58A-M3/9AT?
SMCG58CA-M3/9AT is bidirectional, meaning it clamps symmetrically for both positive and negative transients-ideal for AC-coupled or floating signal lines-while SMCG58A-M3/9AT is unidirectional with a marked cathode band and conducts only in reverse bias. Key differences include identical VWM (58 V) and PPPM (1500 W), but SMCG58A-M3/9AT specifies IFSM = 200 A and VF = 3.5 V at 100 A, whereas SMCG58CA-M3/9AT has no forward voltage rating and no polarity marking. The "CA" suffix explicitly denotes bidirectional functionality per Vishay's ordering nomenclature.
What is the thermal resistance of SMCG58CA-M3/9AT, and how does it affect layout design?
SMCG58CA-M3/9AT has a typical junction-to-lead thermal resistance (RθJL) of 15 °C/W and junction-to-ambient resistance (RθJA) of 75 °C/W when mounted on 8.0 mm × 8.0 mm copper pads per terminal. This means effective heat dissipation requires adherence to the recommended pad layout-undersized pads increase thermal impedance, risking premature thermal runaway during repetitive surges. For automotive applications with sustained ambient temperatures above 105 °C, designers must apply derating per Figure 2 in the datasheet to maintain TJ ≤ 150 °C.
Does SMCG58CA-M3/9AT require orientation during PCB placement?
No, SMCG58CA-M3/9AT does not require orientation during PCB placement because it is a bidirectional device with no polarity marking-unlike unidirectional variants that feature a cathode band. Both terminals are functionally identical, allowing rotation-invariant mounting. This simplifies automated pick-and-place programming and eliminates orientation-related assembly errors, particularly beneficial in high-volume automotive and industrial manufacturing where traceability and first-pass yield are critical.
SMCG58CA-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):
- 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-M3/9AT FAQ
1.How can I place an order for SMCG58CA-M3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG58CA-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 SMCG58CA-M3/9AT reliable?
The price and inventory of SMCG58CA-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 SMCG58CA-M3/9AT is usually 5 days.
3.What payment methods are accepted for SMCG58CA-M3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG58CA-M3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG58CA-M3/9AT?
SMCG58CA-M3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG58CA-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 SMCG58CA-M3/9AT?
For technical support, including SMCG58CA-M3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG58CA-M3/9AT requirements.
6.How does Aetrix verify that SMCG58CA-M3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCG58CA-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 SMCG58CA-M3/9AT meets industry standards.
7.What is the process for return or replacement of SMCG58CA-M3/9AT?
All SMCG58CA-M3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCG58CA-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 SMCG58CA-M3/9AT part is unused and in its original packaging.
Return procedure for SMCG58CA-M3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG58CA-M3/9AT Tags
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