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Vishay General Semiconductor - Diodes Division SMBJ58CAHE3/5B
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- Part No.:
- SMBJ58CAHE3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ58CAHE3/5B.pdf
- Description:
- TVS DIODE 58VWM 93.6VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,217
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Product details
Overview
SMBJ58CAHE3/5B from Vishay General Semiconductor is a bidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping voltage transients on signal or 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 maximum clamping voltage (VC) at 6.4 A peak pulse current, and 600 W peak pulse power rating with 10/1000 µs waveform - used to protect MOSFETs, sensor interfaces, and industrial I/O circuits.
For engineers reviewing the SMBJ58CAHE3/5B datasheet, SMBJ58CAHE3/5B pinout, SMBJ58CAHE3/5B application, or SMBJ58CAHE3/5B equivalent, key selection criteria include bidirectional clamping capability, AEC-Q101 qualification status, low clamping ratio (VC/VWM ≈ 1.62), thermal resistance (RθJA = 100 °C/W), and compatibility with automated SMT placement on standard PCB pad layouts.
Technical Context
This device operates as a voltage-clamping protector with symmetrical avalanche behavior in both directions, enabling suppression of positive and negative transients without polarity sensitivity. Its glass-passivated junction ensures stable breakdown characteristics and fast response time (<1 ns), while the SMB package supports high surge current handling (IPPM = 6.4 A) under standardized 10/1000 µs waveform conditions.
The SMBJ58CAHE3/5B is rated for continuous operation from –55 °C to +150 °C junction temperature, with 5.0 W power dissipation at 50 °C ambient on infinite heatsink. It meets MSL Level 1 per J-STD-020, has matte tin-plated leads solderable per J-STD-002, and carries AEC-Q101 qualification for automotive-grade reliability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 58 V - Maximum continuous reverse working voltage before significant leakage; defines safe operating margin below clamping threshold. |
| VBR (Breakdown Voltage) | 64.4–71.2 V at 1 mA - Guaranteed avalanche initiation range; ensures predictable turn-on during overvoltage events. |
| VC (Clamping Voltage) | 93.6 V at IPPM = 6.4 A - Peak voltage seen by protected circuit during 600 W transient; determines stress on downstream components. |
| PPPM (Peak Pulse Power) | 600 W with 10/1000 µs waveform - Standardized surge energy absorption capacity; validated for repetitive 0.01% duty cycle. |
| IPPM (Peak Pulse Current) | 6.4 A - Maximum non-repetitive surge current supported; derived from PPPM/VC and critical for layout trace sizing. |
| TJmax | +150 °C - Maximum allowable junction temperature; enables use in under-hood or high-ambient industrial environments. |
| RθJA | 100 °C/W - Thermal resistance from junction to ambient; informs derating requirements when mounted on 5 mm × 5 mm copper pads. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, bidirectional configuration with no polarity marking. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H); terminals are matte tin-plated for lead-free soldering compliance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode / Anode (symmetrical) | Bidirectional avalanche junction | No functional distinction between terminals; either terminal may connect to line or ground - enables flexible PCB routing for differential or common-mode protection. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Supports robust immunity against IEC 61000-4-5 Level 4 surges (4 kV line-earth) when properly laid out with low-inductance paths. |
| AEC-Q101 qualified (HE3 suffix) | Validated for automotive powertrain and body electronics applications requiring zero-defect reliability and extended temperature cycling. |
| Low clamping ratio (VC/VWM = 1.62) | Minimizes overvoltage stress on protected ICs compared to higher-ratio TVS devices, improving system-level surge margin. |
| MSL Level 1 moisture sensitivity | Enables direct placement without baking; compatible with standard reflow profiles up to 260 °C peak temperature. |
| Glass-passivated chip junction | Ensures stable VBR tolerance and long-term parameter stability across temperature and lifetime, critical for safety-critical designs. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
|
Use Scenario: Protecting CAN bus transceivers and analog sensor inputs (e.g., pressure, temperature) from load dump and ESD in 12 V vehicle subsystems. IC Role / Device Role / Timing Role: Bidirectional voltage clamp placed across signal pair or supply rail to limit transient excursions before they reach sensitive input stages. Use Value: Prevents latch-up or permanent damage to microcontrollers and analog front-ends during ISO 7637-2 pulse 5a events, leveraging AEC-Q101 qualification and 150 °C operation. |
Use Scenario: Safeguarding digital input modules in programmable logic controllers exposed to inductive switching noise from solenoids and contactors. IC Role / Device Role / Timing Role: Parallel-connected TVS on 24 V DC input lines to shunt surge energy away from optocoupler inputs and level-shifting circuitry. Use Value: Maintains signal integrity during repetitive 600 W transients (e.g., relay coil de-energization), enabled by low incremental surge resistance and fast <1 ns response. |
| Telecom Line Interface Protection | Consumer Appliance Motor Control |
|
Use Scenario: Shielding RS-485 transceivers and Ethernet PHYs in base station equipment from lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Primary clamping device in multi-stage protection scheme, positioned upstream of GDT or polymer PTC to handle initial high-energy strike. Use Value: Delivers precise 93.6 V clamping at 6.4 A, reducing secondary protector stress and minimizing let-through voltage to sub-100 V levels required by TIA/EIA-485-A. |
Use Scenario: Suppressing commutation spikes from brushed DC motors in washing machines and HVAC blowers connected to MCU-based motor drivers. IC Role / Device Role / Timing Role: Across-motor terminals or across H-bridge supply rails to clamp inductive kickback and prevent gate oxide failure in MOSFETs. Use Value: Withstands 100 A non-repetitive forward surge (IFSM) and maintains stable VBR over 10,000+ cycles, ensuring longevity in high-duty-cycle appliances. |
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-M3/5B | Halogen-free, RoHS-compliant variant; identical electrical specs and AEC-Q101 qualification; same SMB package and thermal performance. | No functional difference in protection performance; selected where halogen-free material compliance is mandated by OEM environmental policy. | Choose SMBJ58CA-M3/5B when halogen-free bill-of-materials is required; otherwise SMBJ58CAHE3/5B offers identical protection with standard RoHS compliance. |
| SMCJ58CAHE3/5B | Same VWM, VBR, and VC, but in larger SMC (DO-214AB) package; rated for 1500 W PPPM and 17.3 A IPPM. | Higher surge handling capacity suits applications with more severe threat levels (e.g., outdoor AC mains interfaces), but requires larger PCB area and higher thermal mass. | Use SMCJ58CAHE3/5B only when 1500 W surge rating is needed; SMBJ58CAHE3/5B remains optimal for space-constrained 600 W protection in automotive and industrial PCBs. |
Compared with SMBJ58CA-M3/5B, SMBJ58CAHE3/5B provides identical protection performance with standard RoHS compliance; versus SMCJ58CAHE3/5B, it delivers proven 600 W clamping in 30% smaller footprint - making SMBJ58CAHE3/5B the preferred choice for compact, AEC-Q101-compliant board-level surge protection.
Availability
SMBJ58CAHE3/5B is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom line protection, and consumer appliance motor control requiring stable component supply and AEC-Q101 assurance.
Supply support for SMBJ58CAHE3/5B 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 was developed for high-reliability surface-mount transient suppression in automotive, industrial, and communications systems - balancing compact size, AEC-Q101 qualification, and repeatable clamping performance under real-world surge conditions.
FAQ
What does the "CA" suffix indicate in SMBJ58CAHE3/5B?
The "CA" suffix denotes a bidirectional configuration, meaning SMBJ58CAHE3/5B provides symmetrical transient suppression for both positive and negative voltage excursions. Unlike unidirectional variants (e.g., SMBJ58A), it has no cathode marking and functions identically regardless of terminal orientation - ideal for AC-coupled or differential signal lines where polarity is undefined or alternating.
Is SMBJ58CAHE3/5B suitable for automotive applications?
Yes, SMBJ58CAHE3/5B is AEC-Q101 qualified (indicated by the "HE3" suffix), making it suitable for automotive powertrain, chassis, and body electronics. It operates reliably from –55 °C to +150 °C, withstands mechanical shock and vibration per AEC standards, and is manufactured under certified PPAP-controlled processes - fulfilling requirements for engine control units, ADAS sensors, and infotainment power rails.
How does the clamping voltage of SMBJ58CAHE3/5B compare to its stand-off voltage?
SMBJ58CAHE3/5B has a 58 V stand-off voltage (VWM) and a maximum clamping voltage (VC) of 93.6 V at 6.4 A, yielding a clamping ratio of approximately 1.62. This ratio reflects efficient avalanche conduction with minimal overvoltage overshoot - significantly lower than many legacy TVS devices - thereby reducing stress on downstream 75 V-rated ICs and enabling tighter design margins in 48 V and 60 V systems.
What is the significance of the "5B" in SMBJ58CAHE3/5B?
The "5B" denotes the packaging configuration: 13-inch diameter plastic tape and reel, containing 3200 units per reel. This format is optimized for high-volume SMT assembly using standard pick-and-place equipment. The "HE3" portion confirms RoHS compliance and AEC-Q101 qualification, while "5B" ensures compatibility with automated manufacturing lines requiring large-reel logistics and consistent feed performance.
Can SMBJ58CAHE3/5B be used in place of a unidirectional TVS like SMBJ58A?
No - SMBJ58CAHE3/5B is strictly bidirectional and cannot replace unidirectional SMBJ58A in DC-biased applications such as power rail protection, where reverse polarity blocking is required. Attempting substitution risks unintended conduction during normal operation. Use SMBJ58CAHE3/5B only where symmetrical clamping is needed (e.g., data lines, AC signals); for DC supply protection, retain unidirectional variants like SMBJ58AHE3/5B.
SMBJ58CAHE3/5B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- 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):
- 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)
SMBJ58CAHE3/5B FAQ
1.How can I place an order for SMBJ58CAHE3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ58CAHE3/5B 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 SMBJ58CAHE3/5B reliable?
The price and inventory of SMBJ58CAHE3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ58CAHE3/5B is usually 5 days.
3.What payment methods are accepted for SMBJ58CAHE3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ58CAHE3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ58CAHE3/5B?
SMBJ58CAHE3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ58CAHE3/5B 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 SMBJ58CAHE3/5B?
For technical support, including SMBJ58CAHE3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ58CAHE3/5B requirements.
6.How does Aetrix verify that SMBJ58CAHE3/5B is sourced from the original manufacturer or authorized distributors?
All SMBJ58CAHE3/5B 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 SMBJ58CAHE3/5B meets industry standards.
7.What is the process for return or replacement of SMBJ58CAHE3/5B?
All SMBJ58CAHE3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ58CAHE3/5B, 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 SMBJ58CAHE3/5B part is unused and in its original packaging.
Return procedure for SMBJ58CAHE3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ58CAHE3/5B Tags
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