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Vishay General Semiconductor - Diodes Division SMCJ58CA/57T
- Part No.:
- SMCJ58CA/57T
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ58CA/57T.pdf
- Description:
- TVS DIODE 58VWM 93.6VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:7,031
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Product details
Overview
SMCJ58CA/57T from Vishay General Semiconductor is a bi-directional transient voltage suppressor (TVS) diode in DO-214AB (SMCJ) package, designed for robust overvoltage 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, 93.6 V clamping voltage (VC) at 16 A peak pulse current, and 1500 W peak pulse power rating with 10/1000 µs waveform - used in automotive sensor interfaces and industrial I/O protection.
For engineers reviewing the SMCJ58CA/57T datasheet, SMCJ58CA/57T pinout, SMCJ58CA/57T application, or SMCJ58CA/57T equivalent, key selection criteria include bi-directional clamping capability, AEC-Q101 qualification, UL 497B recognition, low incremental surge resistance, and compatibility with automated SMT placement on 8.0 mm × 8.0 mm copper pads.
Technical Context
The SMCJ58CA/57T operates as a silicon avalanche diode with symmetrical bi-directional clamping behavior, enabling protection of AC-coupled or floating signal paths without polarity concerns. Its glass-passivated junction ensures stable VBR tolerance and long-term reliability under repetitive surge stress.
Designed for transient suppression per ANSI/IEEE C62.35, it responds within picoseconds to ESD and lightning-induced surges, delivering consistent clamping performance across -55 °C to +150 °C operating junction temperature, with thermal resistance RθJA = 75 °C/W and RθJL = 15 °C/W.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 58 V - maximum continuous reverse working voltage before clamping initiates |
| VBR min/max | 64.4 V / 71.2 V at 1 mA - guaranteed avalanche breakdown range defining turn-on threshold |
| VC @ IPPM | 93.6 V at 16 A - clamped voltage during 10/1000 µs surge, limiting downstream stress |
| PPPM | 1500 W - peak transient power handling capacity under standardized surge waveform |
| ID @ VWM | 1.0 µA - ultra-low leakage ensuring minimal standby power loss and signal integrity |
| TJ max | +150 °C - extended thermal operating limit supporting under-hood automotive use |
| AEC-Q101 | Qualified - validated for automotive-grade reliability including temperature cycling and HTRB |
Pinout & Package
Package: DO-214AB (SMCJ), surface-mount, bi-directional device with no polarity marking; molded compound meets UL 94 V-0; matte tin-plated leads compliant with J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bi-directional avalanche junction | No functional distinction - either terminal serves as cathode or anode depending on transient polarity |
| Case (cathode band absent) | Non-polarized termination | Eliminates orientation constraints during automated placement; supports AC line or differential pair protection |
Key Features
| Feature | Design Value |
|---|---|
| Bi-directional clamping | Enables single-device protection of floating or AC-coupled lines without external polarity management |
| AEC-Q101 qualification | Validated for automotive electronics including engine control modules and ADAS sensor interfaces |
| UL 497B recognition (QVGQ2) | Meets safety requirements for telecom and industrial signal-line protectors |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ISO 7637-2 Pulse 1/2a/5a) |
| MSL Level 1 (260 °C peak) | Compatible with standard lead-free reflow profiles without moisture sensitivity concerns |
Applications
| Automotive Sensor Protection | Industrial I/O Interface |
|---|---|
Use Scenario: Protecting CAN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load-dump and inductive switching transients in vehicle ECUs. IC Role / Device Role / Timing Role: Bi-directional TVS placed directly at connector entry point to clamp ±100 V surges before reaching PHY or ADC front-end. Use Value: Maintains signal integrity under ISO 16750-2 Class IV stress while meeting AEC-Q101 lifetime requirements. | Use Scenario: Safeguarding RS-485/RS-422 differential data lines in programmable logic controllers and motor drives against EFT and surge events. IC Role / Device Role / Timing Role: Paired across differential pair (A–B) and to ground to suppress common-mode and differential-mode transients simultaneously. Use Value: Prevents communication lockup and latch-up in field-deployed equipment exposed to 4 kV EFT per IEC 61000-4-4. |
| Telecom Line Protection | Consumer Power Adapter Input |
Use Scenario: Shielding Ethernet PHY magnetics and DSL line drivers from lightning-induced surges in outdoor telecom cabinets. IC Role / Device Role / Timing Role: First-stage protector upstream of GDT or polymer PTC, absorbing up to 1500 W of 10/1000 µs energy. Use Value: Reduces secondary protector stress and extends system-level surge withstand to 6 kV (IEC 61000-4-5). | Use Scenario: Overvoltage clamping on primary-side DC input rails of USB-C PD adapters and smart home power supplies. IC Role / Device Role / Timing Role: Parallel-connected across bulk capacitor to suppress MOSFET switching spikes and external surge coupling. Use Value: Limits input rail overshoot to ≤93.6 V, preventing gate oxide damage in 65 V-rated controllers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ58CA | Lower PPPM (600 W), smaller SMB package (DO-214AA), higher RθJA (110 °C/W) | Suitable for space-constrained consumer PCBs but not high-energy industrial surges | Select when board area is critical and peak surge energy remains below 600 W. |
| 1.5KE58CA | Through-hole TO-218 package, same 1500 W rating, higher VBR tolerance (±5 % vs. ±10 %), no AEC-Q101 | Used in legacy industrial power supplies where manual assembly or high-reliability through-hole mounting is required | Choose for repair/refurbish scenarios or where automated SMT is unavailable. |
Compared with SMBJ58CA and 1.5KE58CA, the SMCJ58CA/57T delivers optimal balance of high surge capacity, AEC-Q101 compliance, and SMT manufacturability - making it preferred for new automotive and industrial designs requiring both robustness and production scalability.
Availability
SMCJ58CA/57T is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial I/O protection, telecom line safeguarding, and consumer power adapter input circuits requiring stable component supply and full traceability.
Supply support for SMCJ58CA/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, and protection devices with emphasis on reliability, efficiency, and application-specific optimization.
The SMCJ series belongs to Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in harsh environments - targeting automotive, industrial, and telecom infrastructure where failure modes must be mitigated without compromising signal fidelity.
FAQ
What is the clamping voltage of the SMCJ58CA/57T under a 10/1000 µs surge?
The SMCJ58CA/57T clamps to a maximum of 93.6 V at 16 A peak pulse current (IPPM) under the standardized 10/1000 µs waveform. This value is measured per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during surge events - critical for ensuring downstream ICs rated to 100 V or less remain within safe operating limits. The SMCJ58CA/57T achieves this with low incremental resistance and symmetrical bi-directional response.
Is the SMCJ58CA/57T suitable for automotive applications?
Yes, the SMCJ58CA/57T is AEC-Q101 qualified and UL 497B recognized (file E136766), confirming its suitability for automotive use. It meets stringent requirements for temperature cycling, high-temperature reverse bias, and surge endurance - making it appropriate for engine control units, ADAS camera modules, and body electronics. The SMCJ58CA/57T operates reliably from -55 °C to +150 °C junction temperature and supports ISO 7637-2 and ISO 16750-2 compliance testing when properly mounted.
Does the SMCJ58CA/57T have polarity markings?
No, the SMCJ58CA/57T is a bi-directional TVS diode and carries no polarity marking - consistent with Vishay's CA-suffix designation. Unlike uni-directional variants (e.g., SMCJ58A), it lacks a cathode band and functions identically regardless of terminal orientation. This simplifies PCB layout and eliminates orientation errors during automated placement, especially in differential or AC-coupled signal paths where polarity independence is essential.
What is the thermal resistance of the SMCJ58CA/57T?
The SMCJ58CA/57T 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 recommended 0.31" × 0.31" (8.0 mm × 8.0 mm) copper pad layout per terminal. These values enable effective heat dissipation during repetitive surge events and support sustained operation at +150 °C junction temperature. The SMCJ58CA/57T's low RθJL also facilitates thermal coupling to internal ground planes in multilayer boards.
How does the SMCJ58CA/57T differ from the SMCJ58A?
The SMCJ58CA/57T is bi-directional, while the SMCJ58A is uni-directional - meaning the former clamps transients of either polarity, whereas the latter only protects against reverse-biased surges. The SMCJ58CA/57T has identical VWM (58 V), PPPM (1500 W), and package (DO-214AB), but omits the cathode band and exhibits symmetric VBR (64.4–71.2 V) in both directions. This makes the SMCJ58CA/57T ideal for protecting floating lines like CAN, RS-485, or audio inputs where polarity cannot be assumed.
SMCJ58CA/57T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AB, SMC
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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/57T FAQ
1.How can I place an order for SMCJ58CA/57T through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ58CA/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 SMCJ58CA/57T reliable?
The price and inventory of SMCJ58CA/57T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMCJ58CA/57T is usually 5 days.
3.What payment methods are accepted for SMCJ58CA/57T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ58CA/57T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ58CA/57T?
SMCJ58CA/57T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ58CA/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 SMCJ58CA/57T?
For technical support, including SMCJ58CA/57T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ58CA/57T requirements.
6.How does Aetrix verify that SMCJ58CA/57T is sourced from the original manufacturer or authorized distributors?
All SMCJ58CA/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 SMCJ58CA/57T meets industry standards.
7.What is the process for return or replacement of SMCJ58CA/57T?
All SMCJ58CA/57T units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ58CA/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 SMCJ58CA/57T part is unused and in its original packaging.
Return procedure for SMCJ58CA/57T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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