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Vishay General Semiconductor - Diodes Division SMCG58CAHE3/57T
- Part No.:
- SMCG58CAHE3/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AB, SMC Gull Wing
- Datasheet:
-
SMCG58CAHE3/57T.pdf
- Description:
- TVS DIODE 58VWM 93VC DO215AB
- Quantity:
- Payment:
- Shipping:
Inventory:8,983
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Product details
Overview
SMCG58CAHE3/57T 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), 16.0 A peak pulse current (IPPM), and clamps to ≤93 V at IPPM - ideal for automotive sensor line and CAN bus interface protection.
For engineers reviewing the SMCG58CAHE3/57T datasheet, SMCG58CAHE3/57T pinout, SMCG58CAHE3/57T application, or SMCG58CAHE3/57T equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification, 1500 W surge rating with 10/1000 µs waveform, low incremental surge resistance, and compatibility with automated SMT placement on standard PCB pads.
Technical Context
This device operates as a voltage-clamping TVS in bidirectional mode, leveraging a glass-passivated silicon junction to achieve fast response (<1 ns) and stable breakdown characteristics across both polarities. Its design targets transient suppression per IEC 61000-4-2 (ESD), IEC 61000-4-4 (EFT), and ISO 7637-2 (automotive load dump).
The SMCG58CAHE3/57T is thermally rated for TJ = –55 °C to +150 °C, with RθJA = 75 °C/W and RθJL = 15 °C/W, enabling reliable operation under high ambient conditions when mounted on 8.0 mm × 8.0 mm copper pads per terminal. It meets MSL Level 1 and JESD 201 Class 2 whisker resistance.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 58 V - maximum continuous reverse operating voltage before clamping initiates |
| VBR min/max | 64.4 V / 71.2 V at IT = 1 mA - ensures predictable turn-on threshold with tight tolerance |
| VC @ IPPM | ≤93 V at 16.0 A - defines worst-case clamped voltage during 10/1000 µs surge |
| PPPM | 1500 W - peak transient energy handling capacity under standardized surge waveform |
| ID @ VWM | ≤1.0 µA - ultra-low leakage preserves signal integrity in high-impedance circuits |
| TJ max | +150 °C - supports under-hood automotive and industrial environments without derating |
| AEC-Q101 | Qualified - validated for automotive reliability including temperature cycling, HTRB, and ESD |
Pinout & Package
Package: SMCG (DO-215AB) - surface-mount, low-profile gull-wing leadframe with matte tin-plated terminals, UL 94 V-0 molding compound, and no polarity marking for bidirectional configuration.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (positive polarity) | One side of symmetrical junction; accepts surge in either direction |
| Cathode | Transient current entry (negative polarity) | Other side of symmetrical junction; identical electrical role to Anode in bidirectional mode |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or differential lines (e.g., CAN, RS-485) without polarity concerns |
| AEC-Q101 qualification | Validates suitability for automotive ECUs, ADAS sensors, and infotainment systems requiring zero-failure field performance |
| Low incremental surge resistance | Minimizes voltage overshoot during fast transients, improving protection margin for downstream ICs |
| MSL Level 1 rating | Allows unlimited floor life and reflow at 260 °C peak, simplifying manufacturing and eliminating bake requirements |
| Glass passivated junction | Ensures long-term stability of VBR and leakage under thermal/humidity stress, critical for 15+ year automotive lifecycles |
Applications
| Automotive Sensor Protection | CAN Bus Interface Protection |
|---|---|
Use Scenario: Protecting analog output lines of pressure, temperature, or position sensors exposed to load-dump and inductive switching transients in engine control modules. IC Role / Device Role / Timing Role: Voltage-clamping TVS placed directly at connector entry point to shunt surges before reaching precision ADC or signal conditioner. Use Value: Maintains sensor accuracy by limiting transient-induced offset shift and preventing latch-up in downstream op-amps or microcontrollers. | Use Scenario: Safeguarding CANH/CANL differential pair against ESD events and coupled noise in vehicle body control units and gateway modules. IC Role / Device Role / Timing Role: Bidirectional clamping device placed across differential lines to clamp common-mode and differential transients simultaneously. Use Value: Preserves CAN bit timing integrity by limiting voltage excursion to <93 V, avoiding bus arbitration errors or node reset during EMC testing. |
| Industrial PLC I/O Protection | Telecom Line Interface Protection |
Use Scenario: Shielding 24 V DC digital input channels in programmable logic controllers from relay coil flyback and field wiring surges. IC Role / Device Role / Timing Role: Standoff-rated TVS connected between input line and ground to absorb repetitive 1500 W surges without degradation. Use Value: Extends mean time between failures (MTBF) by preventing cumulative junction damage from repeated 10/1000 µs transients in factory automation environments. | Use Scenario: Protecting Ethernet PHY or DSL line drivers from lightning-induced surges entering via RJ-45 jacks in network edge equipment. IC Role / Device Role / Timing Role: Primary-level TVS on each twisted-pair line, coordinated with secondary GDT or polymer PTC for staged protection. Use Value: Enables compliance with IEC 61000-4-5 Level 3 (2 kV line-earth) while maintaining <10 pF junction capacitance to avoid signal attenuation at 100 MHz. |
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 | Unidirectional; same VWM/VBR/PPPM but lacks bidirectional symmetry and AEC-Q101 qualification | Requires polarity-aware layout; unsuitable for differential or AC-coupled lines without external biasing | Select only if circuit topology mandates unidirectional clamping and automotive qualification is not required |
| SMCJ58CA | Same bidirectional function and VWM, but in larger DO-214AB (SMC) package; higher thermal mass but incompatible footprint | Not drop-in replaceable due to different pad layout and 30% larger board area; better for >100 °C ambient | Choose when higher thermal dissipation is needed and PCB redesign is acceptable |
Compared with SMAJ58A-E3/57T and SMCJ58CA, the SMCG58CAHE3/57T uniquely combines bidirectional operation, AEC-Q101 qualification, and DO-215AB footprint-enabling compact, automotive-grade protection without polarity constraints or layout changes.
Availability
SMCG58CAHE3/57T is available at Aetrix Electronics and suitable for automotive sensor interfaces, CAN bus nodes, industrial PLC I/O modules, and telecom line drivers requiring stable component supply and full traceability.
Supply support for SMCG58CAHE3/57T 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, MOSFETs, and protection devices with emphasis on reliability, efficiency, and automotive-grade validation.
The SMCG series was developed specifically for high-reliability transient suppression in space-constrained automotive and industrial applications, prioritizing AEC-Q101 compliance, low-profile packaging, and consistent clamping performance across temperature.
FAQ
What is the clamping voltage of SMCG58CAHE3/57T at its rated peak pulse current?
The SMCG58CAHE3/57T clamps to a maximum of 93 V at its specified peak pulse current (IPPM) of 16.0 A under the 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 standards and represents the worst-case voltage seen by protected circuitry during surge events, ensuring downstream ICs remain within safe operating limits.
Is SMCG58CAHE3/57T suitable for automotive applications?
Yes, SMCG58CAHE3/57T is AEC-Q101 qualified and explicitly rated for automotive use. Its construction includes glass-passivated junctions, MSL Level 1 moisture sensitivity, and validation across temperature cycling, HTRB, and ESD tests - making it appropriate for engine control units, ADAS sensors, and infotainment systems where reliability under harsh conditions is mandatory.
Does SMCG58CAHE3/57T have polarity markings on the package?
No, SMCG58CAHE3/57T does not feature polarity markings because it is a bidirectional TVS diode. The device functions identically regardless of orientation across the protected line, eliminating the need for cathode band identification - unlike unidirectional variants such as SMCG58AHE3/57T which include a visible marking.
What is the thermal resistance of SMCG58CAHE3/57T, and how does it affect layout?
SMCG58CAHE3/57T 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. To maintain TJ ≤ 150 °C under 6.5 W steady-state dissipation, designers must adhere to this pad layout - reducing pad size increases thermal impedance and risks premature thermal failure during sustained surge duty cycles.
How does the SMCG58CAHE3/57T differ from the SMAJ58A-E3/57T in practical design?
SMCG58CAHE3/57T is bidirectional and AEC-Q101 qualified, while SMAJ58A-E3/57T is unidirectional and not automotive-qualified. In practice, this means SMCG58CAHE3/57T can protect differential buses like CAN without polarity concerns and is approved for under-hood use, whereas SMAJ58A-E3/57T requires careful orientation and is limited to commercial/industrial applications.
SMCG58CAHE3/57T 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:
- -
- 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AB (SMCG)
SMCG58CAHE3/57T FAQ
1.How can I place an order for SMCG58CAHE3/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCG58CAHE3/57T 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 SMCG58CAHE3/57T reliable?
The price and inventory of SMCG58CAHE3/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCG58CAHE3/57T is usually 5 days.
3.What payment methods are accepted for SMCG58CAHE3/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCG58CAHE3/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCG58CAHE3/57T?
SMCG58CAHE3/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCG58CAHE3/57T 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 SMCG58CAHE3/57T?
For technical support, including SMCG58CAHE3/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCG58CAHE3/57T requirements.
6.How does Aetrix verify that SMCG58CAHE3/57T is sourced from the original manufacturer or authorized distributors?
All SMCG58CAHE3/57T 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 SMCG58CAHE3/57T meets industry standards.
7.What is the process for return or replacement of SMCG58CAHE3/57T?
All SMCG58CAHE3/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCG58CAHE3/57T, 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 SMCG58CAHE3/57T part is unused and in its original packaging.
Return procedure for SMCG58CAHE3/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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