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Vishay General Semiconductor - Diodes Division SMCJ58CA-E3/9AT
- Part No.:
- SMCJ58CA-E3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ58CA-E3/9AT.pdf
- Description:
- TVS DIODE 58VWM 93.6VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,098
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Product details
Overview
SMCJ58CA-E3/9AT from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMC (DO-214AB) package, designed for high-energy surge protection on power and signal lines. It features a 58 V standoff voltage (VWM), 64.4–71.2 V breakdown range (VBR at 1 mA), 1500 W peak pulse power (10/1000 µs), 16.0 A peak pulse current (IPPM), and clamps to ≤93.6 V at rated surge. It protects MOSFETs, ICs, and sensor interfaces in automotive and industrial power supplies.
For engineers reviewing the SMCJ58CA-E3/9AT datasheet, SMCJ58CA-E3/9AT pinout, SMCJ58CA-E3/9AT application, or SMCJ58CA-E3/9AT equivalent, key selection criteria include bidirectional clamping capability, 1500 W surge rating, DO-214AB thermal performance (RθJA = 75 °C/W), AEC-Q101 qualification eligibility, and compatibility with automated SMT placement on 8.0 mm × 8.0 mm copper pads.
Technical Context
The SMCJ58CA-E3/9AT operates as a silicon avalanche diode with symmetrical bidirectional conduction-no polarity marking required. Its glass-passivated junction enables fast response (<1 ns) to transients induced by inductive switching or ESD, while maintaining low incremental surge resistance for stable clamping under repetitive surges.
Designed for surface-mount use on PCBs with minimum 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pads per terminal, it meets J-STD-020 MSL Level 1 (260 °C peak reflow) and supports operation from –55 °C to +150 °C junction temperature. The device is RoHS-compliant (E3 suffix) and optionally AEC-Q101 qualified (HE3 suffix).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 58 V - Maximum continuous reverse operating voltage before clamping begins; defines safe operating margin below breakdown. |
| VBR min/max | 64.4 V / 71.2 V at IT = 1 mA - Confirmed breakdown threshold range; ensures predictable turn-on during overvoltage events. |
| VC @ IPPM | ≤93.6 V at 16.0 A - Clamped voltage under full 1500 W surge; determines maximum stress imposed on protected downstream circuitry. |
| PPPM | 1500 W (10/1000 µs waveform) - Peak surge energy handling capacity; validates suitability for IEC 61000-4-5 Level 4 compliance designs. |
| TJ max | +150 °C - Maximum junction temperature; enables reliable operation in under-hood automotive or high-ambient industrial environments. |
| RθJA | 75 °C/W - Thermal resistance junction-to-ambient on standard pad layout; informs derating requirements above 25 °C ambient. |
| Package | SMC (DO-214AB) - Standardized 2-pin surface-mount outline with 7.75 mm × 6.22 mm body; compatible with automated pick-and-place and reflow. |
Pinout & Package
SMCJ58CA-E3/9AT uses the SMC (DO-214AB) package: a 2-terminal, non-polarized surface-mount case with matte tin-plated leads solderable per J-STD-002. Bidirectional construction means no cathode/anode marking; both terminals are functionally identical.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Surge Input / Line Side | Connects to unprotected line (e.g., 12 V rail or CAN bus); conducts transient current symmetrically to Terminal 2 during overvoltage. |
| Terminal 2 | Surge Return / Load Side | Connects to protected load (e.g., MCU power input or sensor supply); completes low-impedance path for surge current diversion. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or floating signal lines (e.g., RS-485, CAN FD) without polarity concerns. |
| 1500 W peak pulse power | Supports robust immunity against severe transients including ISO 7637-2 Pulse 5a (load dump) in 12 V automotive systems. |
| Glass passivated junction | Ensures stable VBR over lifetime and improved reliability vs. epoxy-passivated alternatives under thermal cycling stress. |
| MSL Level 1 rating | Allows direct placement into standard lead-free reflow profiles (peak 260 °C) without moisture sensitivity preconditioning. |
| AEC-Q101 qualification path | Base P/NHE3 variant available for automotive applications requiring validated reliability per stress test requirements. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs from load dump and jump-start transients in passenger vehicles. IC Role / Device Role / Timing Role: Primary clamping device placed at power entry point, shunting >100 V spikes to ground before reaching DC/DC converters or microcontrollers. Use Value: Limits voltage seen by downstream regulators to ≤93.6 V during 1500 W surges, preventing latch-up or permanent damage to 3.3 V/5 V logic. | Use Scenario: Safeguarding analog outputs of pressure or temperature sensors connected to PLC I/O modules in factory automation. IC Role / Device Role / Timing Role: Bidirectional TVS across differential signal pair (e.g., 4–20 mA loop or RS-485 bus) to absorb ESD and cable-induced surges. Use Value: Maintains signal integrity by clamping transients within ±93.6 V window while adding <1 pF capacitance-no data rate degradation at 10 Mbps. |
| Telecom DC Power Feeds | Consumer Appliance Motor Drive Protection |
Use Scenario: Securing 48 V PoE-powered network switches against lightning-induced surges on Ethernet cables. IC Role / Device Role / Timing Role: Secondary-level protector on DC input stage, coordinated with upstream gas discharge tube (GDT) for staged clamping. Use Value: Provides fast-response secondary clamping (sub-ns) after GDT fires, limiting let-through voltage to safe levels for DC/DC controller ICs. | Use Scenario: Shielding microcontroller GPIOs and gate drivers from back-EMF spikes generated by brushed DC motors in smart home appliances. IC Role / Device Role / Timing Role: Localized TVS mounted adjacent to motor driver IC output pins to clamp inductive kickback before propagation. Use Value: Absorbs 1500 W pulses from 24 V motor coils without degradation, enabling compact layout with minimal trace inductance impact. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC58CA | Same VWM (58 V), lower PPPM (500 W), smaller SMA package (DO-214AC) | Limited to lower-energy surges; unsuitable for ISO 7637-2 Pulse 5a or IEC 61000-4-5 Level 4 | Select when board space is constrained and surge threat level is limited to ESD or minor switching noise. |
| 1.5KE58CA | Same VWM and bidirectionality, through-hole DO-201 package, 1500 W rating | Requires wave soldering or hand assembly; incompatible with fully SMT production lines | Choose only for legacy through-hole designs or prototyping where rework flexibility outweighs automation needs. |
Compared with SAC58CA and 1.5KE58CA, the SMCJ58CA-E3/9AT delivers identical 58 V protection with full 1500 W capability in an SMT-optimized SMC package-enabling automated manufacturing, higher thermal dissipation than SMA, and drop-in compatibility in space-constrained automotive and industrial PCB layouts.
Availability
SMCJ58CA-E3/9AT is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, telecom DC feed safeguarding, and consumer appliance motor drive circuits requiring stable component supply and long-term lifecycle support.
Supply support for SMCJ58CA-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, power efficiency, and AEC-Q qualification.
The SMCJ series is engineered for high-energy transient suppression in harsh environments-targeting automotive, industrial, and telecom infrastructure where sustained surge immunity and thermal stability are critical.
FAQ
What is the standoff voltage rating of the SMCJ58CA-E3/9AT?
The SMCJ58CA-E3/9AT has a standoff voltage (VWM) of 58 V, meaning it remains non-conductive up to this reverse voltage under normal operation. This value is confirmed in the Vishay datasheet Document Number 88394, Table "ELECTRICAL CHARACTERISTICS", and defines the maximum continuous working voltage before clamping initiates. Exceeding 58 V triggers avalanche conduction, diverting surge current away from protected circuitry.
Is the SMCJ58CA-E3/9AT suitable for automotive applications?
Yes-the SMCJ58CA-E3/9AT is RoHS-compliant (E3 suffix) and part of the AEC-Q101-qualified SMCJ family; the HE3 variant is explicitly certified for automotive use. Its 1500 W surge rating, –55 °C to +150 °C operating range, and MSL Level 1 reflow compatibility make SMCJ58CA-E3/9AT appropriate for engine control units, body electronics, and ADAS power inputs where ISO 7637-2 compliance is required.
What does the "CA" suffix indicate in SMCJ58CA-E3/9AT?
The "CA" suffix in SMCJ58CA-E3/9AT denotes a bidirectional configuration-meaning the device provides symmetrical transient suppression in both polarities, with no cathode marking required. This distinguishes it from unidirectional variants (e.g., SMCJ58A), which have a band-marked cathode and conduct only in reverse bias. Bidirectionality makes SMCJ58CA-E3/9AT ideal for AC lines, differential buses, or floating grounds.
What is the maximum clamping voltage of the SMCJ58CA-E3/9AT under surge conditions?
The SMCJ58CA-E3/9AT clamps to a maximum of 93.6 V when subjected to its rated 16.0 A peak pulse current (IPPM), corresponding to a 1500 W surge (10/1000 µs waveform). This VC value is measured per ANSI/IEEE C62.35 standards and represents the highest voltage imposed on protected circuitry during worst-case transient events-critical for ensuring downstream ICs remain within absolute maximum ratings.
How does the SMCJ58CA-E3/9AT differ from the unidirectional SMCJ58A-E3/9AT?
The SMCJ58CA-E3/9AT is bidirectional with symmetrical VBR (64.4–71.2 V) and no polarity marking, while the SMCJ58A-E3/9AT is unidirectional with a cathode band and forward voltage drop (~3.5 V at 100 A). Both share identical VWM (58 V), PPPM (1500 W), and package (SMC), but SMCJ58CA-E3/9AT supports AC or floating applications, whereas SMCJ58A-E3/9AT is used only on DC rails with defined polarity.
SMCJ58CA-E3/9AT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- 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:
- 93.6V
- 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 (SMCJ)
SMCJ58CA-E3/9AT FAQ
1.How can I place an order for SMCJ58CA-E3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ58CA-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 SMCJ58CA-E3/9AT reliable?
The price and inventory of SMCJ58CA-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 SMCJ58CA-E3/9AT is usually 5 days.
3.What payment methods are accepted for SMCJ58CA-E3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ58CA-E3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ58CA-E3/9AT?
SMCJ58CA-E3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ58CA-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 SMCJ58CA-E3/9AT?
For technical support, including SMCJ58CA-E3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ58CA-E3/9AT requirements.
6.How does Aetrix verify that SMCJ58CA-E3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCJ58CA-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 SMCJ58CA-E3/9AT meets industry standards.
7.What is the process for return or replacement of SMCJ58CA-E3/9AT?
All SMCJ58CA-E3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ58CA-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 SMCJ58CA-E3/9AT part is unused and in its original packaging.
Return procedure for SMCJ58CA-E3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ58CA-E3/9AT Tags
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