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Vishay General Semiconductor - Diodes Division SMCJ58C-E3/9AT
- Part No.:
- SMCJ58C-E3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ58C-E3/9AT.pdf
- Description:
- TVS DIODE 58VWM 103VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:9,364
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Product details
Overview
SMCJ58C-E3/9AT from Vishay is a bi-directional transient voltage suppressor (TVS) diode in DO-214AB (SMCJ) package, designed for clamping voltage transients 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, 1500 W peak pulse power (10/1000 µs), 93.6 V maximum clamping voltage (VC) at 16 A IPPM, and AEC-Q101 qualification for automotive use.
For engineers reviewing the SMCJ58C-E3/9AT datasheet, SMCJ58C-E3/9AT pinout, SMCJ58C-E3/9AT application, or SMCJ58C-E3/9AT equivalent, key selection criteria include bi-directional clamping capability, 1500 W surge rating, DO-214AB thermal performance (RθJA = 75 °C/W), RoHS-compliant matte tin terminations, and suitability for automotive-grade ESD/surge protection in sensor interfaces and power rails.
Technical Context
The SMCJ58C-E3/9AT operates as a bi-directional avalanche diode, symmetrically clamping voltage surges above ±64.4 V in either polarity. Its glass-passivated junction ensures stable breakdown characteristics and low incremental surge resistance, enabling fast response (<1 ns) to transients induced by inductive switching or ESD events.
Designed for surface-mount placement on 8.0 mm × 8.0 mm copper pads per terminal, it supports junction temperatures from –55 °C to +150 °C and meets MSL Level 1 (260 °C reflow peak). The device draws ≤1.0 µA reverse leakage at 58 V and maintains clamping performance under repetitive surge stress when derated per Fig. 2 of the datasheet.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 58 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR min/max | 64.4 V / 71.2 V at 1 mA - Confirmed breakdown range ensuring reliable turn-on margin over VWM |
| VC @ IPPM | 93.6 V at 16 A - Clamped voltage during 10/1000 µs surge, limiting downstream IC stress |
| PPPM | 1500 W - Peak transient energy handling capacity with standard waveform |
| ID @ VWM | ≤1.0 µA - Low leakage preserves signal integrity in high-impedance circuits |
| TJ max | +150 °C - Enables operation in under-hood automotive environments |
| Qualification | AEC-Q101 - Validated for automotive reliability including temperature cycling and HTRB |
Pinout & Package
Package: DO-214AB (SMCJ), surface-mount, bi-directional configuration with no polarity marking (unlike uni-directional variants which feature cathode band).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Transient conduction path | Bi-directional terminals conduct equally in both polarities; no functional distinction between leads |
| Case (body) | Thermal and mechanical interface | DO-214AB molded body provides UL 94 V-0 flammability rating and 75 °C/W junction-to-ambient thermal resistance |
Key Features
| Feature | Design Value |
|---|---|
| Bi-directional clamping | Enables single-device protection of AC-coupled or floating signal lines without polarity concerns |
| 1500 W peak pulse power | Withstands IEC 61000-4-5 Level 4 surges (4 kV line-earth, 2 kV line-line) on properly laid out PCBs |
| AEC-Q101 qualification | Validates robustness for automotive applications including engine control units and ADAS sensor interfaces |
| Glass passivated junction | Ensures stable VBR over lifetime and improved resistance to humidity-induced parameter drift |
| MSL Level 1 | Supports standard SMT reflow profiles up to 260 °C peak without preconditioning |
Applications
| Automotive Sensor Protection | Industrial CAN Bus Interface |
|---|---|
Use Scenario: Protecting ABS wheel speed sensor outputs from load dump and ISO 7637-2 pulses in 12 V vehicle systems. IC Role / Device Role / Timing Role: Bi-directional TVS placed across differential sensor output lines to clamp ±100 V transients within 1 ns. Use Value: Prevents latch-up or damage to downstream op-amps and ADCs while maintaining signal fidelity below 58 V normal operation. | Use Scenario: Safeguarding CANH/CANL lines in industrial gateways exposed to lightning-induced surges on long cable runs. IC Role / Device Role / Timing Role: Primary surge suppression element located at connector entry point, rated for repeated 1500 W transients. Use Value: Maintains bus communication integrity by limiting clamping voltage to 93.6 V, well below CAN transceiver absolute maximum ratings. |
| Consumer Power Adapter Input | Telecom DSL Line Interface |
Use Scenario: Input-stage protection for 24 V wall adapters subjected to AC line surges and capacitor discharge events. IC Role / Device Role / Timing Role: First-line defense against differential-mode surges on primary-side DC bus before regulator ICs. Use Value: Absorbs 1500 W pulses without degradation, eliminating need for secondary crowbar circuits or fuses. | Use Scenario: Transient suppression on POTS/DSL line cards where asymmetric surges occur due to nearby power line coupling. IC Role / Device Role / Timing Role: Bi-directional clamping device bridging tip/ring lines to ground, handling ±10/1000 µs surges. Use Value: Provides symmetrical protection without polarity sensitivity, reducing BOM count versus dual uni-directional devices. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SAC58C | Lower PPPM (600 W), same VWM (58 V), DO-214AA package (smaller thermal mass) | Not AEC-Q101 qualified; limited to commercial-grade consumer/industrial use | Select when cost and board space are prioritized over automotive reliability and 1500 W surge headroom |
| SMCJ58CAHE3/9AT | Identical electrical specs and DO-214AB package; differs only in HE3 suffix indicating AEC-Q101 qualification and JESD 201 Class 2 whisker resistance | No functional difference in circuit behavior; identical clamping and thermal performance | Choose for full automotive compliance documentation traceability where HE3 certification is mandated |
Compared with SAC58C, SMCJ58C-E3/9AT delivers 2.5× higher surge power handling and automotive qualification; versus SMCJ58CAHE3/9AT, it shares all electrical and thermal behavior but carries JESD 201 Class 1A whisker testing instead of Class 2-sufficient for most automotive ECUs unless extreme vibration environments apply.
Availability
SMCJ58C-E3/9AT is available at Aetrix Electronics and suitable for automotive sensor protection, industrial CAN bus interface, and telecom DSL line interface requiring stable component supply and AEC-Q101 assurance.
Supply support for SMCJ58C-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, MOSFETs, optoelectronics, and passive components with emphasis on reliability and application-specific performance.
The SMCJ series belongs to Vishay's TRANSZORB® TVS platform, engineered specifically for high-energy transient suppression in automotive, industrial, and telecom infrastructure where robustness against ISO 7637-2, IEC 61000-4-5, and lightning-induced surges is critical.
FAQ
What does the "C" suffix indicate in SMCJ58C-E3/9AT?
The "C" suffix in SMCJ58C-E3/9AT denotes a bi-directional configuration, meaning the device clamps voltage transients equally in both polarities. Unlike uni-directional variants (e.g., SMCJ58A), it has no cathode marking and is used where AC signals, floating references, or bidirectional data lines require symmetrical protection without polarity constraints. This is confirmed in the Vishay datasheet section "Devices for Bi-Direction Applications".
Is SMCJ58C-E3/9AT RoHS compliant and lead-free?
Yes, SMCJ58C-E3/9AT is RoHS compliant and lead-free. The "E3" suffix explicitly indicates RoHS compliance per Directive 2011/65/EU, and the terminations are matte tin plated-solderable per J-STD-002 and JESD 22-B102. It also passes JESD 201 Class 1A whisker testing, as documented in the Vishay ordering information table and material categorization notice.
What is the maximum clamping voltage for SMCJ58C-E3/9AT and under what test condition?
The maximum clamping voltage (VC) for SMCJ58C-E3/9AT is 93.6 V, measured at a peak pulse current (IPPM) of 16 A using the standardized 10/1000 µs double-exponential waveform. This value is specified in the Electrical Characteristics table on page 2 of the Vishay datasheet (Document Number: 88394) and defines the upper voltage limit imposed on protected circuitry during surge events.
Does SMCJ58C-E3/9AT require a heatsink for standard operation?
No, SMCJ58C-E3/9AT does not require an external heatsink for transient suppression duty cycles. Its thermal resistance (RθJA = 75 °C/W) and 6.5 W steady-state power dissipation rating assume mounting on 8.0 mm × 8.0 mm copper pads per terminal-as specified in the "Maximum Ratings" table. Heatsinking is unnecessary unless operating continuously near PD limits, which is atypical for TVS diode applications.
How does the AEC-Q101 qualification impact the use of SMCJ58C-E3/9AT in automotive designs?
The AEC-Q101 qualification confirms that SMCJ58C-E3/9AT has passed accelerated stress tests-including temperature cycling, high-temperature reverse bias, and unbiased high-temperature storage-required for automotive electronic components. This enables its use in engine control modules, ADAS sensors, and infotainment systems without additional qualification effort, as verified in the Vishay datasheet footnote (1) and Mechanical Data section.
SMCJ58C-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:
- Obsolete
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 58V
- Voltage - Breakdown (Min):
- 64.4V
- Voltage - Clamping (Max) @ Ipp:
- 103V
- Current - Peak Pulse (10/1000µs):
- 14.6A
- 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)
SMCJ58C-E3/9AT FAQ
1.How can I place an order for SMCJ58C-E3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ58C-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 SMCJ58C-E3/9AT reliable?
The price and inventory of SMCJ58C-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 SMCJ58C-E3/9AT is usually 5 days.
3.What payment methods are accepted for SMCJ58C-E3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ58C-E3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ58C-E3/9AT?
SMCJ58C-E3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ58C-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 SMCJ58C-E3/9AT?
For technical support, including SMCJ58C-E3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ58C-E3/9AT requirements.
6.How does Aetrix verify that SMCJ58C-E3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCJ58C-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 SMCJ58C-E3/9AT meets industry standards.
7.What is the process for return or replacement of SMCJ58C-E3/9AT?
All SMCJ58C-E3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ58C-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 SMCJ58C-E3/9AT part is unused and in its original packaging.
Return procedure for SMCJ58C-E3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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