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Vishay General Semiconductor - Diodes Division SMCJ58A-E3/9AT
- Part No.:
- SMCJ58A-E3/9AT
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AB, SMC
- Datasheet:
-
SMCJ58A-E3/9AT.pdf
- Description:
- TVS DIODE 58VWM 93.6VC DO214AB
- Quantity:
- Payment:
- Shipping:
Inventory:2,479
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Product details
Overview
SMCJ58A-E3/9AT from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMC (DO-214AB) package, designed for robust overvoltage protection of DC power rails and signal lines. It features a 58 V standoff voltage (VWM), 64.4–71.2 V breakdown range (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.
For engineers reviewing the SMCJ58A-E3/9AT datasheet, SMCJ58A-E3/9AT pinout, SMCJ58A-E3/9AT application, or SMCJ58A-E3/9AT equivalent, this device serves as a high-energy, low-clamping TVS for automotive power supply inputs, industrial sensor interfaces, and telecom DC-DC converter outputs where fast transient suppression (<1 ps response) and AEC-Q101-compliant reliability are required.
Technical Context
The SMCJ58A-E3/9AT operates as a unidirectional avalanche diode, conducting only when reverse voltage exceeds its breakdown threshold. Its glass-passivated junction ensures stable VBR tolerance (±5%) and low incremental surge resistance, enabling consistent clamping under repetitive transients.
Thermal design is supported by RθJA = 75 °C/W (typ.) and RθJL = 15 °C/W (typ.), with maximum junction temperature rated at +150 °C. It meets J-STD-020 MSL Level 1 and is RoHS-compliant (E3 suffix), with matte tin-plated leads solderable per J-STD-002 and JESD 22-B102.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 58 V - Maximum continuous reverse operating voltage before significant leakage; defines safe DC rail margin. |
| VBR (Breakdown Voltage) | 64.4–71.2 V at 1 mA - Confirmed avalanche onset range; ensures reliable triggering above nominal system voltage. |
| VC (Clamping Voltage) | 93.6 V at 16 A (10/1000 µs) - Peak voltage seen by protected circuit during worst-case surge; enables downstream IC survival. |
| PPPM (Peak Pulse Power) | 1500 W - Energy-handling capacity for standardized lightning/surge events; supports IEC 61000-4-5 Level 4 compliance. |
| IPPM (Peak Pulse Current) | 16 A - Maximum non-repetitive surge current it can divert without failure; validated on 8 mm × 8 mm copper pads. |
| TJmax | +150 °C - Enables operation in under-hood automotive or industrial ambient environments without derating. |
| Leakage (ID) | 1.0 µA max at 58 V - Negligible standby power loss; critical for battery-powered sensor nodes. |
Pinout & Package
Package: SMC (DO-214AB), surface-mount, low-profile case with cathode band marking. Dimensions: 7.75 mm × 6.22 mm × 2.62 mm (L × W × H); terminals are matte tin-plated leads compatible with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward conduction terminal (cathode-banded end is opposite) | Connected to ground or lower-potential node in unidirectional clamp configuration; defines current path during surge. |
| Cathode | Reverse-biased terminal (marked with band) | Connected to protected line (e.g., 48 V rail); avalanche conduction occurs here when VIN > VBR. |
Key Features
| Feature | Design Value |
|---|---|
| 1500 W peak pulse power | Supports high-energy transients (e.g., ISO 7637-2 Pulse 5a) without degradation across 1000+ surges. |
| 93.6 V clamping at 16 A | Provides ≥25% voltage margin below typical 120 V DC-DC converter OVP thresholds, preventing false trips. |
| MSL Level 1 moisture sensitivity | Enables direct placement without baking; eliminates production delays and moisture-related popcorning risk. |
| AEC-Q101 qualified variant available | HE3 suffix option meets automotive qualification for engine control, body electronics, and ADAS power domains. |
| Glass-passivated junction | Ensures long-term VBR stability and low leakage drift over 15+ years in industrial temperature cycling. |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Clamp |
|---|---|
|
Use Scenario: 48 V battery-fed ECU input subjected to load dump (ISO 7637-2 Pulse 5a) and alternator ripple. IC Role / Device Role / Timing Role: Unidirectional TVS placed between 48 V rail and chassis ground to shunt surge energy away from DC-DC controller ICs. Use Value: Clamps transient to ≤93.6 V within <1 ns, protecting 100 V-rated input stages of buck converters and PMICs. |
Use Scenario: 24 V analog sensor output (e.g., pressure transducer) routed through noisy factory floor wiring. IC Role / Device Role / Timing Role: Low-capacitance TVS (CJ ≈ 100 pF at 0 V) placed at connector entry to suppress ESD and inductive switching noise. Use Value: Limits induced spikes to <93.6 V while adding <0.5 ns propagation delay, preserving 10 kHz signal bandwidth. |
| Telecom DC-DC Converter Output | Motor Drive Gate Driver Supply Rail |
|
Use Scenario: +58 V output of telecom rectifier feeding distributed PoE++ infrastructure. IC Role / Device Role / Timing Role: Standoff-matched TVS (VWM = 58 V) installed at output filter stage to absorb reflected surge from downstream cable faults. Use Value: Absorbs 1500 W surges without thermal runaway, maintaining output regulation during repeated lightning-induced transients. |
Use Scenario: 15 V isolated gate driver supply in 3-phase inverter exposed to cross-conduction shoot-through transients. IC Role / Device Role / Timing Role: Fast-response TVS on gate supply rail to clamp negative-going ringing and prevent IGBT/MOSFET gate oxide damage. Use Value: Sub-ns response prevents >20 V undershoot on gate drive, eliminating false turn-on and ensuring FET reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ58A-E3/52T | Same VWM/VBR/VC, but SMB (DO-214AA) package: 4.6 mm × 3.9 mm footprint, 600 W PPPM. | Limited to lower-energy transients (e.g., IEC 61000-4-2 ESD only); unsuitable for ISO 7637-2 Pulse 5a. | Select when board space is constrained and surge energy ≤600 W; requires PCB layout revision. |
| SMCJ58CA-E3/9AT | Bidirectional variant: identical VWM/VBR/VC, but symmetric clamping in both polarities; no polarity marking. | Required for AC-coupled or floating signal lines (e.g., RS-485, CAN FD bus) where bidirectional transients occur. | Choose for differential or AC signal protection; not interchangeable with SMCJ58A-E3/9AT without circuit review. |
Compared with SMBJ58A-E3/52T, the SMCJ58A-E3/9AT delivers 2.5× higher surge energy handling in the same mounting orientation; versus SMCJ58CA-E3/9AT, it offers superior DC rail protection efficiency due to unidirectional leakage control and optimized cathode grounding.
Availability
SMCJ58A-E3/9AT is available at Aetrix Electronics and suitable for automotive power modules, industrial sensor interfaces, and telecom DC-DC converter designs requiring stable component supply, full traceability, and long-lifecycle support.
Supply support for SMCJ58A-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 high-reliability diodes, MOSFETs, and passive components for demanding industrial and automotive applications.
The SMCJ series is engineered for high-energy transient suppression in harsh environments, targeting automotive power distribution, industrial automation I/O protection, and telecom infrastructure surge resilience.
FAQ
What is the clamping voltage of the SMCJ58A-E3/9AT under a 10/1000 µs surge?
The SMCJ58A-E3/9AT has a maximum clamping voltage (VC) of 93.6 V at 16 A peak pulse current with a 10/1000 µs waveform. This value is measured on standard 8.0 mm × 8.0 mm copper pads and defines the upper voltage limit imposed on protected circuits during surge events. The SMCJ58A-E3/9AT maintains this clamping performance across its full operating temperature range (−55 °C to +150 °C).
Is the SMCJ58A-E3/9AT RoHS-compliant and lead-free?
Yes, the SMCJ58A-E3/9AT carries the "E3" suffix, indicating full RoHS compliance and lead-free construction per EU Directive 2011/65/EU. Its matte tin-plated leads meet J-STD-002 and JESD 22-B102 solderability standards, and it passes JESD 201 Class 2 whisker testing. The SMCJ58A-E3/9AT is also halogen-free and complies with Vishay's material categorization per doc# 99912.
Can the SMCJ58A-E3/9AT be used in automotive applications?
The base SMCJ58A-E3/9AT is commercial-grade, but Vishay offers the AEC-Q101-qualified variant SMCJ58AHE3_A/I (with HE3 suffix) for automotive use. While the SMCJ58A-E3/9AT shares identical electrical specs and thermal ratings, only the HE3 version is certified for under-hood and chassis applications per AEC-Q101 stress tests. For automotive designs, specify the HE3 variant to ensure qualification compliance.
What is the thermal resistance of the SMCJ58A-E3/9AT?
The SMCJ58A-E3/9AT has a typical junction-to-ambient thermal resistance (RθJA) of 75 °C/W and a junction-to-lead resistance (RθJL) of 15 °C/W, measured under standard JEDEC conditions. These values assume mounting on minimum recommended pad layout (0.31″ × 0.31″ copper). Derating curves in Figure 2 of the datasheet document power dissipation limits above 25 °C ambient.
How does the SMCJ58A-E3/9AT differ from the SMCJ58CA-E3/9AT?
The SMCJ58A-E3/9AT is unidirectional with cathode band marking and specified reverse leakage (1.0 µA max at 58 V), while the SMCJ58CA-E3/9AT is bidirectional-symmetric in both directions, with no polarity marking and double the leakage limit (2.0 µA max) for VWM ≤10 V devices (though both share 1.0 µA at 58 V). The SMCJ58A-E3/9AT is intended for DC rail protection; the CA version suits AC or floating signal lines like CAN or RS-485.
SMCJ58A-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:
- 1
- Bidirectional Channels:
- -
- 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)
SMCJ58A-E3/9AT FAQ
1.How can I place an order for SMCJ58A-E3/9AT through Aetrix?
Please submit a Request for Quotation (RFQ) for SMCJ58A-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 SMCJ58A-E3/9AT reliable?
The price and inventory of SMCJ58A-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 SMCJ58A-E3/9AT is usually 5 days.
3.What payment methods are accepted for SMCJ58A-E3/9AT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMCJ58A-E3/9AT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMCJ58A-E3/9AT?
SMCJ58A-E3/9AT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMCJ58A-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 SMCJ58A-E3/9AT?
For technical support, including SMCJ58A-E3/9AT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMCJ58A-E3/9AT requirements.
6.How does Aetrix verify that SMCJ58A-E3/9AT is sourced from the original manufacturer or authorized distributors?
All SMCJ58A-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 SMCJ58A-E3/9AT meets industry standards.
7.What is the process for return or replacement of SMCJ58A-E3/9AT?
All SMCJ58A-E3/9AT units undergo pre-shipment inspection (PSI). If there is an issue with SMCJ58A-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 SMCJ58A-E3/9AT part is unused and in its original packaging.
Return procedure for SMCJ58A-E3/9AT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMCJ58A-E3/9AT Tags
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