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Vishay General Semiconductor - Diodes Division SMBJ58AHM3_A/H
- Part No.:
- SMBJ58AHM3_A/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ58AHM3_A/H.pdf
- Description:
- TVS DIODE 58VWM 93.6VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,751
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Product details
Overview
SMBJ58AHM3_A/H from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping fast-rising voltage transients on power and signal lines. It features a 58 V stand-off 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, and operates across –55 °C to +150 °C junction temperature range - deployed in industrial motor drives and automotive ECUs for MOSFET gate protection.
For engineers reviewing the SMBJ58AHM3_A/H datasheet, SMBJ58AHM3_A/H pinout, SMBJ58AHM3_A/H application, or SMBJ58AHM3_A/H equivalent, this page delivers verified electrical specs, thermal behavior, AEC-Q101 qualification status, UL 497B recognition, and real-world design context for surge immunity validation in 12–48 V DC systems.
Technical Context
This TVS diode uses a glass-passivated silicon junction optimized for low incremental surge resistance and sub-nanosecond response time to ESD and lightning-induced surges. Its unidirectional polarity enables integration into DC-biased rails where reverse conduction must be blocked until clamping threshold is exceeded.
The device meets MSL Level 1 per J-STD-020 with 260 °C reflow peak, supports 100 A non-repetitive forward surge current (8.3 ms half-sine), and exhibits 0.104 %/°C temperature coefficient of VBR, ensuring stable clamping performance across automotive under-hood temperature excursions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 58 V - Maximum continuous reverse operating voltage before leakage exceeds 1 µA; sets upper limit for DC rail placement without false triggering. |
| VBR (min/max) | 64.4 V / 71.2 V at 1 mA - Confirmed breakdown window ensures reliable turn-on margin above VWM while avoiding premature conduction. |
| VC @ IPPM | 93.6 V at 6.4 A - Clamping voltage during 600 W transient defines worst-case overvoltage seen by protected IC or MOSFET. |
| PPPM | 600 W (10/1000 µs waveform) - Peak surge energy handling capacity validated for IEC 61000-4-5 Level 4 compliance in industrial environments. |
| RθJA | 100 °C/W - Junction-to-ambient thermal resistance determines derating curve above 25 °C ambient; requires minimum 5.0 mm × 5.0 mm copper pads per terminal. |
| TJ max. | +150 °C - Maximum junction temperature rating enables use in under-hood automotive modules and high-temperature industrial enclosures. |
| AEC-Q101 | Qualified - Validated for automotive-grade reliability including HTOL, TC, UHAST, and ESD testing per AEC specification; suffix HM3 denotes halogen-free RoHS-compliant version. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, matte tin-plated leads, UL 94 V-0 molding compound. Cathode indicated by band on case end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side connection point | Connected to ground or low-potential node; completes clamping path when cathode voltage exceeds VBR. |
| Cathode | High-side connection point | Connected to protected line (e.g., 48 V supply rail); absorbs transient energy by conducting to anode when overvoltage occurs. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables robust protection against IEC 61000-4-5 surges up to 4 kV in 2 Ω/12 Ω source impedance configurations. |
| 93.6 V clamping voltage at 6.4 A | Limits stress on downstream 100 V-rated MOSFETs or 75 V-input DC-DC converters during worst-case transients. |
| AEC-Q101 qualified (HM3 suffix) | Validates long-term reliability for automotive body control modules, ADAS power supplies, and battery management system interfaces. |
| MSL Level 1, 260 °C peak reflow | Supports standard SMT assembly without moisture sensitivity concerns or baking requirements prior to reflow. |
| UL 497B recognized (QVGQ2 file E136766) | Confirms suitability for telecom and industrial equipment requiring certified surge protection components. |
Applications
| Automotive Power Rail Protection | Industrial Sensor Interface Protection |
|---|---|
|
Use Scenario: 48 V battery-fed engine control unit (ECU) power input subjected to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Unidirectional TVS placed between 48 V rail and chassis ground to clamp transients above 58 V. Use Value: Limits peak voltage to ≤93.6 V, preventing damage to 100 V-rated buck controllers and CAN transceivers sharing the same rail. |
Use Scenario: Analog output line of a pressure sensor in factory automation PLC I/O module exposed to cable coupling noise. IC Role / Device Role / Timing Role: TVS connected between signal line and ground to shunt ESD and switching noise away from op-amp input stage. Use Value: Sub-ns response and 1 µA leakage at 58 V preserve signal integrity and offset accuracy in 4–20 mA loop circuits. |
| Telecom DC Power Feeds | Motor Drive Gate Driver Protection |
|
Use Scenario: -48 V DC power feed in telecom base station remote radio head (RRH) encountering lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Unidirectional SMBJ58AHM3_A/H installed at entry point to clamp negative-going transients toward ground. Use Value: 600 W rating and UL 497B recognition meet Telcordia GR-1089-CORE surge immunity requirements for Class 3 equipment. |
Use Scenario: High-side gate drive supply (15 V) of an IGBT inverter leg subject to Miller-induced voltage spikes during switching. IC Role / Device Role / Timing Role: TVS placed between gate driver VCC and GND to clamp overshoot exceeding 15 V. Use Value: 93.6 V clamping voltage prevents gate oxide breakdown in 20 V-rated gate drivers while maintaining fast recovery. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ58AHE3_A/H | Same electrical specs but RoHS-compliant commercial grade (E3), not halogen-free or AEC-Q101 qualified. | Lacks automotive qualification and halogen-free certification; suitable for industrial/commercial designs without AEC or green material mandates. | Select SMBJ58AHE3_A/H for cost-sensitive non-automotive applications where AEC-Q101 and halogen-free status are not required. |
| SMAJ58AHE3 | Lower 400 W PPPM, SMA (DO-214AC) package, 100 °C TJ max., no AEC-Q101 qualification. | Reduced surge capability and thermal rating; limited to lower-energy transients and less demanding thermal environments. | Choose SMAJ58AHE3 only if board space constraints require smaller SMA footprint and surge threat level is below IEC 61000-4-5 Level 3. |
Compared with SMBJ58AHE3_A/H and SMAJ58AHE3, SMBJ58AHM3_A/H uniquely combines AEC-Q101 qualification, halogen-free construction, and full 600 W surge rating in SMB package - making it the only option qualified for automotive under-hood deployment with full environmental compliance.
Availability
SMBJ58AHM3_A/H is available at Aetrix Electronics and suitable for automotive ECU power inputs, industrial sensor interfaces, telecom DC feeds, and motor drive gate driver protection requiring stable component supply and long-term lifecycle assurance.
Supply support for SMBJ58AHM3_A/H 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 harsh environments - targeting automotive, industrial, and telecom systems where failure due to voltage surges must be eliminated through robust, standardized, and qualified components.
FAQ
What is the clamping voltage of SMBJ58AHM3_A/H at its rated peak pulse current?
The SMBJ58AHM3_A/H has a maximum clamping voltage (VC) of 93.6 V at its peak pulse current (IPPM) of 6.4 A, measured using the standard 10/1000 µs waveform. This value defines the upper voltage limit imposed on protected circuitry during a 600 W transient event and is critical for ensuring compatibility with downstream 100 V-rated components. The SMBJ58AHM3_A/H maintains this clamping performance across its full operating temperature range.
Is SMBJ58AHM3_A/H qualified for automotive applications?
Yes, SMBJ58AHM3_A/H is AEC-Q101 qualified, as confirmed by Vishay's documentation and ordering code suffix HM3. This qualification covers stress tests including high-temperature operating life, temperature cycling, unbiased highly accelerated stress test, and ESD. The SMBJ58AHM3_A/H is approved for use in automotive body electronics, powertrain control modules, and ADAS subsystems where reliability under extended temperature and vibration conditions is mandatory.
What does the "HM3" suffix indicate in SMBJ58AHM3_A/H?
The "HM3" suffix in SMBJ58AHM3_A/H specifies halogen-free, RoHS-compliant construction with AEC-Q101 qualification. It distinguishes this variant from E3 (RoHS-compliant commercial grade) and HE3 (RoHS-compliant AEC-Q101) versions. The HM3 designation ensures compliance with automotive material restrictions (e.g., JIS C 0950) and environmental standards required by Tier 1 suppliers. The SMBJ58AHM3_A/H meets JESD 201 Class 2 whisker resistance and MSL Level 1 reflow specifications.
How does SMBJ58AHM3_A/H differ from bidirectional TVS diodes like SMBJ58CA?
SMBJ58AHM3_A/H is unidirectional and blocks reverse current until breakdown, making it suitable for DC-biased lines such as positive power rails. In contrast, SMBJ58CA is bidirectional and conducts symmetrically in both directions - appropriate for AC lines or differential signal pairs. The SMBJ58AHM3_A/H offers lower leakage (<1 µA at 58 V) and higher surge current capability in its intended polarity, whereas SMBJ58CA exhibits matched VBR in both directions and double the ID limit for VWM ≤10 V devices.
What PCB layout guidance applies to SMBJ58AHM3_A/H for optimal thermal and surge performance?
For optimal thermal dissipation and surge current handling, Vishay specifies mounting SMBJ58AHM3_A/H on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal, with internal layer copper pours connected via multiple thermal vias. Minimizing trace inductance between the SMBJ58AHM3_A/H and protected node is essential to preserve sub-nanosecond response. The device's RθJA of 100 °C/W assumes this pad layout; reduced copper area increases junction temperature and degrades PPPM derating.
SMBJ58AHM3_A/H 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:
- Telecom
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMB)
SMBJ58AHM3_A/H FAQ
1.How can I place an order for SMBJ58AHM3_A/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ58AHM3_A/H 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 SMBJ58AHM3_A/H reliable?
The price and inventory of SMBJ58AHM3_A/H are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ58AHM3_A/H is usually 5 days.
3.What payment methods are accepted for SMBJ58AHM3_A/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ58AHM3_A/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ58AHM3_A/H?
SMBJ58AHM3_A/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ58AHM3_A/H 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 SMBJ58AHM3_A/H?
For technical support, including SMBJ58AHM3_A/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ58AHM3_A/H requirements.
6.How does Aetrix verify that SMBJ58AHM3_A/H is sourced from the original manufacturer or authorized distributors?
All SMBJ58AHM3_A/H 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 SMBJ58AHM3_A/H meets industry standards.
7.What is the process for return or replacement of SMBJ58AHM3_A/H?
All SMBJ58AHM3_A/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ58AHM3_A/H, 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 SMBJ58AHM3_A/H part is unused and in its original packaging.
Return procedure for SMBJ58AHM3_A/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ58AHM3_A/H Tags
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