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Vishay General Semiconductor - Diodes Division SMBJ58AHE3_A/I
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- Part No.:
- SMBJ58AHE3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ58AHE3_A/I.pdf
- Description:
- TVS DIODE 58VWM 93.6VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:6,404
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Product details
Overview
SMBJ58AHE3_A/I from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed to protect sensitive electronics against voltage transients induced by inductive load switching and lightning surges. It features a 58 V stand-off voltage (VWM), 64.4–71.2 V breakdown voltage (VBR) at 1 mA, 93.6 V maximum clamping voltage (VC) at 6.4 A peak pulse current (IPPM), and 600 W peak pulse power (10/1000 µs waveform).
For engineers reviewing the SMBJ58AHE3_A/I datasheet, SMBJ58AHE3_A/I pinout, SMBJ58AHE3_A/I application, or SMBJ58AHE3_A/I equivalent, this device is selected for robust overvoltage protection in automotive power rails, industrial sensor interfaces, and telecom DC supply lines where fast response (<1 ns), low clamping ratio, and AEC-Q101 qualification are critical.
Technical Context
This TVS diode operates as a unidirectional clamping device with cathode-banded polarity, leveraging a glass-passivated silicon junction for stable avalanche behavior. Its 100 °C/W junction-to-ambient thermal resistance and 20 °C/W junction-to-lead resistance support reliable operation under repetitive surge conditions when mounted on 5.0 mm × 5.0 mm copper pads.
The SMBJ58AHE3_A/I delivers 600 W peak pulse power per 10/1000 µs waveform at TA = 25 °C, derating linearly above 25 °C per Fig. 2, and maintains ≤1.0 µA reverse leakage at VWM - enabling low-power system compatibility without compromising protection integrity.
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 IT = 1 mA - ensures predictable avalanche onset across production lot |
| VC @ IPPM | 93.6 V at 6.4 A - limits downstream voltage stress during 10/1000 µs transients |
| PPPM | 600 W - sustains high-energy surges without failure under standard test waveform |
| ID @ VWM | ≤1.0 µA - negligible standby current draw in battery-powered or low-leakage systems |
| TJ max | +150 °C - supports operation in under-hood automotive and industrial ambient environments |
| Package | SMB (DO-214AA) - industry-standard surface-mount footprint compatible with automated assembly |
Pinout & Package
Package: SMB (DO-214AA), molded case with matte tin-plated leads, MSL Level 1 (JEDEC J-STD-020), 260 °C reflow peak, RoHS-compliant and AEC-Q101 qualified. Cathode indicated by band.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference terminal | Connected to ground or low-potential node; completes clamping path during positive transients |
| Cathode | High-side protected node | Connected to line being protected (e.g., 48 V rail); avalanche conduction occurs when voltage exceeds VBR |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control units and body electronics |
| 600 W peak pulse power | Withstands IEC 61000-4-5 Level 4 surges (4 kV line-to-ground) without degradation |
| Fast response time | <1 ns turn-on enables protection of high-speed ICs before damage threshold is exceeded |
| Low clamping ratio (VC/VBR ≈ 1.42) | Minimizes overvoltage margin required in protected circuit design |
| MSL Level 1 rating | Enables direct placement without baking; compatible with standard SMT reflow profiles |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 48 V battery-fed ECUs from load dump and alternator ripple transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamping device placed between power input and local regulator. Use Value: Limits transient voltage to ≤93.6 V, preventing damage to downstream 65 V-rated DC/DC converters and microcontrollers. | Use Scenario: Shielding analog front-end inputs of pressure/temperature sensors in factory automation PLCs. IC Role / Device Role / Timing Role: Line-side transient suppressor on 24 V sensor supply and signal return paths. Use Value: Maintains ≤1.0 µA leakage at 24 V nominal, avoiding offset errors while clamping ESD and inductive kick events. |
| Telecom DC Power Input Protection | Motor Drive Control Signal Protection |
Use Scenario: Safeguarding PoE-powered equipment inputs against lightning-induced surges on -48 V telecom supplies. IC Role / Device Role / Timing Role: Primary overvoltage clamp on DC input before DC/DC isolation stage. Use Value: Withstands 600 W pulses with <1 ns response, meeting GR-1089-CORE Level 3 surge immunity requirements. | Use Scenario: Protecting gate drive signals of MOSFETs/IGBTs in BLDC motor controllers from cross-talk and flyback spikes. IC Role / Device Role / Timing Role: Localized TVS on isolated PWM signal lines referenced to low-voltage logic ground. Use Value: Clamps transients to ≤93.6 V while preserving signal edge integrity due to low junction capacitance (~100 pF at 0 V). |
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 | Commercial-grade (non-AEC-Q101), same electrical specs and SMB package | Lacks automotive qualification; suitable for industrial/commercial designs without AEC compliance needs | Select when cost sensitivity outweighs automotive qualification requirement |
| SAC58A | Same VWM (58 V) but lower PPPM (400 W); SOD-123FL package (smaller, lower thermal mass) | Lower surge handling capacity; limited to lighter-duty transients in space-constrained layouts | Choose only if board area is critical and surge energy remains below 400 W capability |
Compared with SMBJ58AHE3_A/I, SMBJ58A-E3/52 offers identical protection performance without AEC-Q101 validation, while SAC58A trades 33 % lower peak power and smaller footprint for reduced thermal robustness - making SMBJ58AHE3_A/I optimal for automotive and high-reliability industrial deployments requiring validated surge endurance.
Availability
SMBJ58AHE3_A/I is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and telecom DC input surge suppression requiring stable component supply across multi-year production cycles.
Supply support for SMBJ58AHE3_A/I 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, efficiency, and application-specific optimization.
The SMBJ series is engineered for high-energy transient suppression in harsh environments, targeting automotive, industrial, and telecom infrastructure where AEC-Q101 qualification, low clamping voltage, and repeatable surge endurance are mandatory.
FAQ
What is the clamping voltage of SMBJ58AHE3_A/I at its rated peak pulse current?
The SMBJ58AHE3_A/I has a maximum clamping voltage (VC) of 93.6 V at its rated peak pulse current (IPPM) of 6.4 A, measured using the standardized 10/1000 µs double-exponential waveform. This value defines the upper voltage limit imposed on protected circuits during surge events and is confirmed in the Vishay datasheet Document Number 88392, Table on page 2.
Is SMBJ58AHE3_A/I qualified for automotive applications?
Yes, SMBJ58AHE3_A/I is AEC-Q101 qualified, as indicated by the "HE3" suffix and explicitly noted in the Vishay datasheet revision 09-Jan-2024. This qualification validates its reliability for use in automotive electronic control units, body electronics, and powertrain subsystems operating within -55 °C to +150 °C junction temperature range.
What does the "A/I" suffix in SMBJ58AHE3_A/I signify?
The "A/I" suffix in SMBJ58AHE3_A/I denotes packaging configuration: "A" indicates the base part is AEC-Q101 qualified (HE3), and "I" specifies 13-inch plastic tape-and-reel delivery mode with 3200 units per reel. This aligns with Vishay's ordering information table on page 3 of document 88392.
How does SMBJ58AHE3_A/I differ from bidirectional variants like SMBJ58CA?
SMBJ58AHE3_A/I is unidirectional with cathode marking and conducts only in reverse bias during overvoltage events, whereas SMBJ58CA is bidirectional and symmetrical - suppressing transients of either polarity. The unidirectional version offers lower leakage and tighter VBR tolerance, making SMBJ58AHE3_A/I preferred for DC power line protection where polarity is fixed.
What is the thermal resistance of SMBJ58AHE3_A/I, and how does it affect layout?
SMBJ58AHE3_A/I has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W and junction-to-lead (RθJL) of 20 °C/W, measured on 5.0 mm × 5.0 mm copper pads per terminal. To maintain safe operation under repetitive surges, PCB layout must provide adequate copper area and avoid thermal bottlenecks - especially critical in automotive under-hood applications where ambient temperatures exceed 85 °C.
SMBJ58AHE3_A/I 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:
- 1
- Bidirectional Channels:
- -
- Voltage - Reverse Standoff (Typ):
- 58V
- Voltage - Breakdown (Min):
- 64.4V
- Voltage - Clamping (Max) @ Ipp:
- 93.6V
- Current - Peak Pulse (10/1000µs):
- 6.4A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
SMBJ58AHE3_A/I FAQ
1.How can I place an order for SMBJ58AHE3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ58AHE3_A/I 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 SMBJ58AHE3_A/I reliable?
The price and inventory of SMBJ58AHE3_A/I are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ58AHE3_A/I is usually 5 days.
3.What payment methods are accepted for SMBJ58AHE3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ58AHE3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ58AHE3_A/I?
SMBJ58AHE3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ58AHE3_A/I 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 SMBJ58AHE3_A/I?
For technical support, including SMBJ58AHE3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ58AHE3_A/I requirements.
6.How does Aetrix verify that SMBJ58AHE3_A/I is sourced from the original manufacturer or authorized distributors?
All SMBJ58AHE3_A/I 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 SMBJ58AHE3_A/I meets industry standards.
7.What is the process for return or replacement of SMBJ58AHE3_A/I?
All SMBJ58AHE3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ58AHE3_A/I, 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 SMBJ58AHE3_A/I part is unused and in its original packaging.
Return procedure for SMBJ58AHE3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ58AHE3_A/I Tags
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