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Vishay General Semiconductor - Diodes Division SMBJ58C-E3/52
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- Part No.:
- SMBJ58C-E3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ58C-E3/52.pdf
- Description:
- TVS DIODE 58VWM 103VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,942
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Product details
Overview
SMBJ58C-E3/52 from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on power and signal lines. It features a 58 V standoff voltage (VWM), 64.4–71.2 V breakdown voltage (VBR) at 1 mA, 600 W peak pulse power (10/1000 µs), 93.6 V maximum clamping voltage (VC) at 6.4 A IPPM, and operates from –55 °C to +150 °C - deployed in industrial motor drives and automotive body control modules.
For engineers reviewing the SMBJ58C-E3/52 datasheet, SMBJ58C-E3/52 pinout, SMBJ58C-E3/52 application, or SMBJ58C-E3/52 equivalent, this page delivers verified electrical parameters, thermal derating behavior, clamping performance under surge conditions, JEDEC-compliant mounting guidance, and RoHS-compliant commercial-grade sourcing details.
Technical Context
This TVS diode uses a glass-passivated silicon junction optimized for fast response (<1 ps) to transient overvoltages induced by inductive switching or ESD events. Its unidirectional polarity enables integration into DC-biased rails where reverse conduction must be blocked until clamping threshold is exceeded.
The device complies with IEC 61000-4-2 (ESD), IEC 61000-4-4 (EFT), and ISO 7637-2 (automotive load dump) immunity requirements when applied with appropriate PCB layout - including minimum 5.0 mm × 5.0 mm copper pad area per terminal to sustain 600 W pulse dissipation.
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 bias margin for protection of downstream 58 V-rated circuits. |
| VBR (Breakdown Voltage) | 64.4–71.2 V at IT = 1 mA - onset voltage range where avalanche conduction begins; ensures reliable triggering above nominal rail. |
| VC (Clamping Voltage) | 93.6 V at IPPM = 6.4 A (10/1000 µs) - peak voltage seen by protected circuit during worst-case surge; limits stress on 100 V-rated components. |
| PPPM (Peak Pulse Power) | 600 W - maximum transient energy absorption capability under standardized 10/1000 µs waveform; supports repetitive surges at 0.01% duty cycle. |
| ID (Reverse Leakage) | 1.0 µA max at VWM - negligible standby current draw; avoids loading low-power sensor or microcontroller supply rails. |
| TJ max. | +150 °C - junction temperature limit enabling operation in under-hood automotive or high-ambient industrial environments. |
| RθJA | 100 °C/W - thermal resistance from junction to ambient on standard 0.2" × 0.2" pads; informs heatsinking needs for sustained surge duty. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, matte tin-plated leads, MSL Level 1 (JEDEC J-STD-020), 260 °C reflow peak. Cathode indicated by band marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference node | Connected to ground or lowest potential point in protected circuit; completes clamping path during transient. |
| Cathode | High-side surge input node | Connected to line being protected (e.g., 58 V supply rail); conducts avalanche current to anode when V > VBR. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables robust protection against ISO 7637-2 Pulse 5a (load dump) in 48 V automotive systems without external series impedance. |
| Low incremental surge resistance | Minimizes voltage overshoot during fast-rising transients (e.g., ESD contact discharge), improving clamping fidelity below 100 V. |
| Glass passivated chip junction | Ensures long-term reliability and stable VBR over temperature and lifetime, critical for industrial equipment with >10-year service life. |
| RoHS-compliant, halogen-free option available (M3 suffix) | Meets IPC-1752A material declaration requirements for green electronics manufacturing and end-of-life recycling compliance. |
| AEC-Q101 qualification path (HE3/HM3 variants) | Validates robustness for automotive applications including engine control units and ADAS power domains - though SMBJ58C-E3/52 itself is commercial grade. |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
Use Scenario: Protection of gate drivers and MCU I/O against flyback voltage from relay coils and solenoid actuation. IC Role / Device Role / Timing Role: Unidirectional TVS placed across 58 V auxiliary supply rail feeding CAN transceivers and LIN bus controllers. Use Value: Clamps induced spikes ≤93.6 V, preventing latch-up or permanent damage to 100 V-rated transceivers while maintaining <1 µA leakage at steady state. |
Use Scenario: Surge suppression on 58 V battery-fed lighting control outputs driving LED headlamps and fog lamps. IC Role / Device Role / Timing Role: Standoff-rated TVS on switched 58 V output stage, coordinated with N-channel MOSFET driver timing to avoid shoot-through during turn-on. Use Value: Absorbs 600 W load dump pulses without degradation, preserving MOSFET SOA and eliminating need for bulk capacitance-based filtering. |
| Telecom Power Feeds | Industrial PLC Analog Inputs |
Use Scenario: Input-stage protection for 58 V PoE++ powered equipment receiving up to 90 W over twisted pair. IC Role / Device Role / Timing Role: Primary clamping element upstream of DC-DC converter, sized to handle IEEE 802.3bt Class 8 surge profiles. Use Value: Limits transient voltage to 93.6 V within 1 ns response time, ensuring converter ICs remain within absolute maximum ratings during cable fault events. |
Use Scenario: Overvoltage safeguard for 4–20 mA loop-powered sensors connected to 58 V fieldbus power supplies. IC Role / Device Role / Timing Role: Bidirectional-capable variant not used; unidirectional SMBJ58C-E3/52 protects only positive rail, paired with series fuse for fault isolation. Use Value: Maintains <1 µA leakage at 58 V, avoiding measurement error in µA-level analog sensing paths while surviving repeated 1 kV EFT bursts. |
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-E3/52 | Same VWM (58 V), identical SMB package and pinout, but unidirectional with cathode band - functionally identical to SMBJ58C-E3/52 per Vishay documentation; "C" suffix denotes same construction. | No functional difference; both rated for same surge waveforms and thermal conditions. | Select SMBJ58C-E3/52 when cross-referencing legacy designators or matching existing BOM nomenclature using "C" suffix convention. |
| SMCJ58A-E3/52 | Higher 1500 W PPPM rating, larger SMC (DO-214AB) package, 100 A IFSM vs. 100 A (same), 103 V VC at 12.3 A IPPM - physically incompatible due to footprint and height. | Used where higher single-pulse energy handling is required, e.g., main DC input of industrial UPS systems. | Choose SMCJ58A-E3/52 only if board layout allows SMC footprint and system-level surge testing exceeds 600 W; not a drop-in replacement. |
Compared with SMBJ58C-E3/52, SMBJ58A-E3/52 offers identical protection performance in the same SMB footprint, while SMCJ58A-E3/52 trades compactness for higher energy capacity - making SMBJ58C-E3/52 optimal for space-constrained 58 V rail protection where 600 W surge margin suffices.
Availability
SMBJ58C-E3/52 is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, telecom power feeds, and industrial PLC analog inputs requiring stable component supply, full traceability, and RoHS-compliant commercial-grade assurance.
Supply support for SMBJ58C-E3/52 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, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and application-specific optimization.
The SMBJ series was engineered for high-energy transient suppression in compact surface-mount formats, targeting automotive, industrial, and communications systems where board space and surge immunity are co-constrained design factors.
FAQ
What is the clamping voltage of SMBJ58C-E3/52 at its rated peak pulse current?
The SMBJ58C-E3/52 has a maximum clamping voltage (VC) of 93.6 V at 6.4 A peak pulse current (IPPM), measured under the standardized 10/1000 µs waveform. This value defines the upper voltage limit imposed on protected circuitry during surge events and is confirmed in Vishay's datasheet revision 09-Jan-2024, page 2, electrical characteristics table.
Is SMBJ58C-E3/52 suitable for automotive applications requiring AEC-Q101 qualification?
SMBJ58C-E3/52 is a commercial-grade part with RoHS compliance (E3 suffix) but is not AEC-Q101 qualified. For automotive use, Vishay offers the SMBJ58CHE3 variant (HE3 suffix), which carries AEC-Q101 qualification and identical electrical specs. The SMBJ58C-E3/52 itself must undergo additional customer-level validation for automotive deployment.
What is the thermal resistance junction-to-ambient for SMBJ58C-E3/52, and how does it affect layout?
The SMBJ58C-E3/52 has a typical RθJA of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This requires adherence to Vishay's recommended pad layout to avoid thermal runaway during repetitive surges; reducing pad area increases junction temperature and de-rates IPPM per Figure 2 in the datasheet.
Does SMBJ58C-E3/52 have bidirectional capability?
No, SMBJ58C-E3/52 is a unidirectional TVS diode, indicated by the "A" suffix and cathode band marking. Bidirectional versions use the "CA" suffix (e.g., SMBJ58CA). The unidirectional configuration blocks reverse current until breakdown occurs, making it suitable for DC-biased lines like 58 V power rails.
What is the maximum reverse leakage current for SMBJ58C-E3/52 at its standoff voltage?
The SMBJ58C-E3/52 exhibits a maximum reverse leakage current (ID) of 1.0 µA at its 58 V standoff voltage (VWM), tested at TA = 25 °C. This ultra-low leakage preserves signal integrity in high-impedance analog paths and minimizes quiescent power loss in always-on systems.
SMBJ58C-E3/52 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- 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):
- 5.8A
- Power - Peak Pulse:
- 600W
- 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-214AA (SMBJ)
SMBJ58C-E3/52 FAQ
1.How can I place an order for SMBJ58C-E3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ58C-E3/52 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 SMBJ58C-E3/52 reliable?
The price and inventory of SMBJ58C-E3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ58C-E3/52 is usually 5 days.
3.What payment methods are accepted for SMBJ58C-E3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ58C-E3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ58C-E3/52?
SMBJ58C-E3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ58C-E3/52 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 SMBJ58C-E3/52?
For technical support, including SMBJ58C-E3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ58C-E3/52 requirements.
6.How does Aetrix verify that SMBJ58C-E3/52 is sourced from the original manufacturer or authorized distributors?
All SMBJ58C-E3/52 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 SMBJ58C-E3/52 meets industry standards.
7.What is the process for return or replacement of SMBJ58C-E3/52?
All SMBJ58C-E3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ58C-E3/52, 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 SMBJ58C-E3/52 part is unused and in its original packaging.
Return procedure for SMBJ58C-E3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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