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Vishay General Semiconductor - Diodes Division SMCG58A-E3/9AT
- Part No.:
- SMCG58A-E3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG58A-E3/9AT.pdf
- Description:
- TVS DIODE 58VWM 93VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,485
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Product details
Overview
SMCG58A-E3/9AT from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in DO-215AB (SMCG) 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 (10/1000 µs), 93 V clamping voltage at 16 A IPPM, and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the SMCG58A-E3/9AT datasheet, SMCG58A-E3/9AT pinout, SMCG58A-E3/9AT application, or SMCG58A-E3/9AT equivalent, this device is selected for high-energy transient suppression in power rails, sensor interfaces, and MOSFET gate protection where fast response (<1 ns), low clamping ratio, and MSL Level 1 reflow compatibility are critical.
Technical Context
This unidirectional TVS operates as a voltage-clamped shunt protector: under normal conditions it presents <1 µA leakage at 58 V; during transients exceeding VBR, it avalanches to clamp voltage at ≤93 V while diverting up to 16 A (10/1000 µs). Its glass-passivated junction ensures stable breakdown and low incremental surge resistance.
The device is rated for TJ = –55 °C to +150 °C, with thermal resistance RθJA = 75 °C/W (on 8 mm × 8 mm copper pads) and RθJL = 15 °C/W, enabling reliable operation in thermally constrained automotive and industrial PCB layouts without forced cooling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 58 V - Maximum continuous reverse operating voltage before significant leakage; defines safe DC/AC rail margin. |
| VBR (min/max) | 64.4 V / 71.2 V at IT = 1 mA - Tight breakdown window ensures predictable turn-on across temperature and unit variation. |
| VC @ IPPM | 93 V at 16 A (10/1000 µs) - Clamping voltage directly limits stress on downstream ICs during surge events. |
| PPPM | 1500 W - Peak transient energy handling capacity; supports IEC 61000-4-5 Level 4 (4 kV/2 Ω) compliance when properly laid out. |
| ID @ VWM | ≤1.0 µA - Ultra-low leakage preserves battery life and signal integrity in always-on sensor circuits. |
| TJ max | +150 °C - Enables deployment in under-hood automotive environments and high-ambient industrial enclosures. |
| Package | DO-215AB (SMCG) - Low-profile SMD outline with gull-wing leads; compatible with automated pick-and-place and J-STD-020 reflow (260 °C peak). |
Pinout & Package
SMCG58A-E3/9AT uses the DO-215AB (SMCG) surface-mount package: molded plastic case with gull-wing terminals, matte tin-plated leads solderable per J-STD-002/JESD 22-B102, and polarity indicated by a cathode band on the unidirectional variant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction; connected to protected circuit ground or low-side reference. | Provides return path for surge current; must be routed with low-inductance trace to minimize clamping overshoot. |
| Cathode | Current exit terminal during avalanche clamping; connected to protected line (e.g., 12 V rail, CAN_H, sensor VDD). | Band-marked end; determines directionality-critical for correct placement on power/signal lines requiring unidirectional suppression. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units, body electronics, and ADAS sensors per stress test requirements. |
| MSL Level 1 (260 °C peak) | Enables single-pass lead-free reflow without moisture-related delamination or popcorn failure. |
| Glass-passivated junction | Ensures long-term stability of VBR and low leakage drift over temperature and lifetime-critical for safety-critical systems. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast transients (e.g., ISO 7637-2 pulse 1/2a/5a), improving system-level ESD/EFT immunity. |
| 1500 W peak pulse power | Supports high-energy surges common in 12 V/24 V vehicle power networks and industrial motor drive switching noise. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Suppressing load-dump transients (ISO 16750-2) and alternator ripple on 12 V battery-fed ECUs. IC Role / Device Role / Timing Role: Shunt clamping element placed between VBAT and GND, responding within <1 ns to limit voltage to ≤93 V. Use Value: Prevents damage to microcontrollers, LIN transceivers, and power management ICs exposed to >35 V surges lasting up to 400 ms. |
Use Scenario: Protecting analog front-end inputs of pressure/temperature sensors in factory automation PLC modules. IC Role / Device Role / Timing Role: Bidirectional-capable unidirectional TVS (cathode tied to sensor VDD) clamps ESD (IEC 61000-4-2 ±8 kV) and inductive kickback. Use Value: Maintains signal fidelity with <1 µA leakage at 58 V while surviving repeated 1500 W surges without parameter shift. |
| MOSFET Gate Driver Protection | Telecom DC Power Input Protection |
Use Scenario: Safeguarding high-side N-channel MOSFET gates driven by PWM controllers in DC-DC converters. IC Role / Device Role / Timing Role: Unidirectional clamp referenced to gate driver supply, limiting gate-source voltage to safe levels during shoot-through or Miller-induced spikes. Use Value: Eliminates need for external Zener + resistor network-reduces BOM count and layout area while improving response time. |
Use Scenario: Guarding primary 48 V DC input of VoIP phones and base station power supplies against lightning-induced surges (IEC 61000-4-5). IC Role / Device Role / Timing Role: First-stage shunt protector upstream of DC-DC converter, clamping line-to-ground transients before they reach isolation barriers. Use Value: Achieves 1500 W dissipation with 93 V VC-enabling smaller secondary-stage TVS or MOV selection and reducing overall system footprint. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMAJ58A-E3/57T | Same VWM (58 V), but lower PPPM (400 W); SMA (DO-214AC) package with higher RθJA (105 °C/W). | Limited to lower-energy transients (e.g., IEC 61000-4-2 only); unsuitable for load-dump or ISO 7637-2 pulse 5a. | Select when cost sensitivity outweighs surge rating needs and board space allows larger thermal pad area. |
| SMCJ58A-E3/9AT | Identical electrical specs (VWM, VBR, VC, PPPM), but SMC (DO-214AB) package with 2.5× higher thermal mass and RθJA = 35 °C/W. | Better sustained power handling and thermal recovery; preferred for high-duty-cycle or ambient >105 °C environments. | Choose for enhanced reliability in under-hood automotive or industrial motor drive applications with frequent surge exposure. |
Compared with SMAJ58A-E3/57T, SMCG58A-E3/9AT delivers 3.75× higher surge power in a smaller footprint; versus SMCJ58A-E3/9AT, it trades thermal robustness for reduced height and tighter board spacing-ideal for low-profile modules where vertical clearance is constrained.
Availability
SMCG58A-E3/9AT is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface protection, MOSFET gate driver protection, and telecom DC power input protection requiring stable component supply and AEC-Q101 assurance.
Supply support for SMCG58A-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, TVS devices, and optoelectronics with emphasis on reliability, automotive qualification, and high-volume manufacturability.
The SMCG series was engineered specifically for space-constrained, high-reliability transient suppression in automotive and industrial systems-combining AEC-Q101 validation, low-profile packaging, and consistent clamping performance across temperature.
FAQ
What is the maximum clamping voltage of SMCG58A-E3/9AT at its rated peak pulse current?
The SMCG58A-E3/9AT has a maximum clamping voltage (VC) of 93 V at 16 A peak pulse current (IPPM), measured using the standard 10/1000 µs waveform. This value is guaranteed across the full operating temperature range and ensures downstream ICs remain within safe voltage limits during surge events. The SMCG58A-E3/9AT achieves this with low incremental surge resistance and a tightly controlled breakdown region.
Is SMCG58A-E3/9AT suitable for automotive applications?
Yes, SMCG58A-E3/9AT is AEC-Q101 qualified and explicitly rated for automotive use, including engine control units, body electronics, and ADAS sensor modules. Its –55 °C to +150 °C operating junction temperature range, MSL Level 1 reflow compatibility, and validated robustness against load-dump and ISO 7637-2 transients make it appropriate for under-hood and cabin-mounted systems. The SMCG58A-E3/9AT meets these requirements without derating.
What does the "E3/9AT" suffix indicate in SMCG58A-E3/9AT?
The "E3" suffix denotes RoHS-compliant, industrial-grade construction with matte tin-plated leads; "9AT" specifies packaging in 13-inch diameter plastic tape and reel, with a base quantity of 3500 units. This format enables high-speed automated assembly and supports large-volume production runs. The SMCG58A-E3/9AT is distinct from "57T" variants (7-inch reel, 850 units) and "HE3" variants (AEC-Q101 qualified version).
How does SMCG58A-E3/9AT compare to bidirectional TVS diodes like SMCG58CA?
SMCG58A-E3/9AT is unidirectional and features a cathode band for polarity-sensitive placement, whereas SMCG58CA is bidirectional with no marking and symmetrical clamping in both directions. The SMCG58A-E3/9AT offers identical VWM (58 V) and PPPM (1500 W) but is intended for DC-biased lines (e.g., VDD-to-GND), while SMCG58CA suits AC-coupled or floating signal paths (e.g., RS-485, CAN). Their breakdown voltages differ slightly due to internal structure.
What is the thermal resistance of SMCG58A-E3/9AT, and how does it affect PCB layout?
SMCG58A-E3/9AT has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W when mounted on 8.0 mm × 8.0 mm copper pads per terminal, and junction-to-lead resistance (RθJL) of 15 °C/W. To maintain safe operation below +150 °C junction temperature, PCB layout must provide adequate copper area and avoid thermal bottlenecks-especially in high-ambient environments. The SMCG58A-E3/9AT benefits from direct thermal coupling to inner-layer planes via thermal vias under the pads.
SMCG58A-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:
- 1
- Bidirectional Channels:
- -
- 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)
SMCG58A-E3/9AT FAQ
1.How can I place an order for SMCG58A-E3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG58A-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 SMCG58A-E3/9AT reliable?
The price and inventory of SMCG58A-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 SMCG58A-E3/9AT is usually 5 days.
3.What payment methods are accepted for SMCG58A-E3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG58A-E3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG58A-E3/9AT?
SMCG58A-E3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG58A-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 SMCG58A-E3/9AT?
For technical support, including SMCG58A-E3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG58A-E3/9AT requirements.
6.How does Aetrix verify that SMCG58A-E3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCG58A-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 SMCG58A-E3/9AT meets industry standards.
7.What is the process for return or replacement of SMCG58A-E3/9AT?
All SMCG58A-E3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCG58A-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 SMCG58A-E3/9AT part is unused and in its original packaging.
Return procedure for SMCG58A-E3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCG58A-E3/9AT Tags
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