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Vishay General Semiconductor - Diodes Division SMBJ58AHM3_B/H
- Part No.:
- SMBJ58AHM3_B/H
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ58AHM3_B/H.pdf
- Description:
- 600W,58V 5%,UNIDIR,SMB TVS
- Quantity:
- Payment:
- Shipping:
Inventory:2,636
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Product details
Overview
SMBJ58AHM3_B/H from Vishay General Semiconductor is a unidirectional surface-mount Transient Voltage Suppressor (TVS) diode in SMB (DO-214AA) package, designed for robust overvoltage protection of DC power rails and signal 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 (IPPM), and 600 W peak pulse power capability with 10/1000 µs waveform - deployed in automotive power supply inputs and industrial sensor interfaces.
For engineers reviewing the SMBJ58AHM3_B/H datasheet, SMBJ58AHM3_B/H pinout, SMBJ58AHM3_B/H application, or SMBJ58AHM3_B/H equivalent, this part serves as a halogen-free, RoHS-compliant, AEC-Q101 qualified TVS for high-reliability transient suppression where clamping performance, thermal stability up to +150 °C junction temperature, and low incremental surge resistance are critical selection criteria.
Technical Context
This unidirectional TVS operates by avalanche breakdown to clamp transient voltages above its VBR threshold while maintaining low leakage (<1.0 µA at VWM) and fast response time (<1.0 ps). Its glass-passivated junction ensures stable electrical characteristics across temperature and long-term reliability under repetitive surge stress.
The device is rated for 100 A non-repetitive forward surge current (IFSM, 8.3 ms half-sine), exhibits a typical thermal resistance of 20 °C/W junction-to-lead (RθJL), and meets MSL Level 1 per J-STD-020 with peak reflow temperature of 260 °C - enabling compatibility with standard SMT assembly processes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 58 V - Maximum continuous reverse operating voltage before significant conduction begins. |
| VBR (Breakdown Voltage) | 64.4–71.2 V at IT = 1 mA - Ensures reliable triggering during transients without false triggering at nominal rail voltage. |
| VC (Clamping Voltage) | 93.6 V at IPPM = 6.4 A - Limits downstream circuit voltage during 600 W surge, protecting 60 V-rated components. |
| PPPM (Peak Pulse Power) | 600 W (10/1000 µs) - Withstands high-energy lightning-induced or inductive-switching surges in automotive/industrial environments. |
| TJ max. | +150 °C - Supports operation in under-hood automotive and high-ambient industrial applications. |
| Package | SMB (DO-214AA) - Standardized surface-mount outline with 5.59 mm × 4.06 mm footprint and 2.20 mm height for automated placement. |
| AEC-Q101 Qualified | Yes - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing per AEC specification. |
Pinout & Package
Package: SMB (DO-214AA), surface-mount, unidirectional polarity indicated by cathode band. Matte tin-plated leads, solderable per J-STD-002 and JESD 22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal during forward conduction | Connected to lower-potential side (e.g., ground or return path) in unidirectional TVS configuration. |
| Cathode | Current exit terminal during reverse-biased clamping | Connected to protected line (e.g., 58 V rail); band-marked end defines cathode orientation on PCB. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables protection against IEC 61000-4-5 Level 4 surges (4 kV line-earth) without derating in compact layout. |
| Low clamping ratio (VC/VBR ≈ 1.46) | Minimizes voltage overshoot during clamping, reducing stress on downstream MOSFETs and ICs. |
| Halogen-free & RoHS-compliant (HM3 suffix) | Meets automotive environmental compliance requirements (e.g., ELV, REACH) without compromising surge robustness. |
| MSL Level 1, 260 °C peak reflow | Eliminates moisture sensitivity concerns and supports single-pass lead-free reflow without baking. |
| 100 A IFSM (8.3 ms) | Withstands high-current inrush events such as hot-swap or load-dump transients in 12 V/24 V systems. |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Protection |
|---|---|
|
Use Scenario: 12 V battery-fed ECUs exposed to load dump (ISO 16750-2) and jump-start surges. IC Role / Device Role / Timing Role: Unidirectional TVS placed between input rail and ground to clamp transients before LDO or DC-DC converter. Use Value: Clamps to ≤93.6 V during 6.4 A surge, preventing damage to 65 V-rated input stages while maintaining <1 µA leakage at 58 V nominal. |
Use Scenario: 4–20 mA current loop sensors in factory automation subject to ESD and cable discharge events. IC Role / Device Role / Timing Role: TVS mounted across sensor output terminals to shunt fast transients (<1 ns rise time) before analog front-end amplifier. Use Value: Sub-100 ps response ensures clamping occurs before sensitive op-amps saturate; low capacitance (<100 pF) avoids signal integrity degradation. |
| Telecom DC Power Feeds | Consumer Equipment AC/DC Adapter Outputs |
|
Use Scenario: -48 V telecom power distribution boards encountering lightning-induced surges on long-line feeds. IC Role / Device Role / Timing Role: Primary protection stage upstream of point-of-load converters, configured anode-to-rail, cathode-to-ground. Use Value: 600 W rating sustains multiple 10/1000 µs surges; AEC-Q101 qualification provides extended lifetime confidence beyond commercial-grade alternatives. |
Use Scenario: Secondary-side 58 V outputs of universal-input SMPS in home appliances and audio amplifiers. IC Role / Device Role / Timing Role: Standoff-rated TVS across output capacitor to suppress switching noise coupling and external EFT bursts. Use Value: 58 V VWM matches typical regulated output tolerances; halogen-free HM3 construction satisfies regional eco-regulations without sacrificing surge margin. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ58AHE3_B/H | Same electrical specs, but RoHS-compliant with brominated flame retardant (non-halogen-free). | Acceptable for commercial/industrial use where halogen-free is not mandated. | Select when cost sensitivity outweighs halogen-free requirement and AEC-Q101 is not needed. |
| SAC58 | Lower 500 W PPPM rating, 100 V VC at 5.5 A, no AEC-Q101 qualification. | Limited to less demanding consumer or non-automotive industrial applications. | Choose only if system-level surge testing confirms 500 W margin is sufficient and automotive qualification is unnecessary. |
Compared with SMBJ58AHM3_B/H, SMBJ58AHE3_B/H offers identical surge performance without halogen-free compliance, while SAC58 trades 17% lower peak power and missing automotive qualification for potentially lower unit cost in non-critical applications.
Availability
SMBJ58AHM3_B/H is available at Aetrix Electronics and suitable for automotive electronics, industrial sensor interfaces, and telecom power feed applications requiring stable component supply, halogen-free compliance, and AEC-Q101 validation.
Supply support for SMBJ58AHM3_B/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 developed specifically for high-power, surface-mount transient suppression in automotive, industrial, and telecom infrastructure - balancing clamping performance, thermal robustness, and manufacturability in DO-214AA packaging.
FAQ
What is the maximum clamping voltage of SMBJ58AHM3_B/H at its rated peak pulse current?
The SMBJ58AHM3_B/H has a maximum clamping voltage (VC) of 93.6 V at its specified peak pulse current (IPPM) of 6.4 A using the 10/1000 µs waveform. This value is measured under standardized test conditions and defines the upper voltage limit imposed on protected circuitry during a full-power transient event. The SMBJ58AHM3_B/H maintains this clamping performance consistently due to its glass-passivated avalanche junction and low dynamic impedance.
Is SMBJ58AHM3_B/H suitable for automotive applications?
Yes, SMBJ58AHM3_B/H is AEC-Q101 qualified and explicitly designated for automotive use via the HM3 suffix (halogen-free, RoHS-compliant, and AEC-Q101 validated). It meets requirements for temperature cycling, high-temperature reverse bias, and mechanical shock relevant to engine control units, body electronics, and ADAS power supplies. The SMBJ58AHM3_B/H is rated for junction temperatures up to +150 °C and supports reflow profiles up to 260 °C.
How does the VWM of SMBJ58AHM3_B/H relate to its breakdown voltage range?
The SMBJ58AHM3_B/H has a stand-off voltage (VWM) of 58 V and a minimum breakdown voltage (VBR) of 64.4 V at 1 mA test current - ensuring ≥6.4 V design margin between normal operation and avalanche onset. This gap prevents leakage-induced heating or false triggering during nominal 58 V rail operation while guaranteeing rapid, repeatable clamping once transients exceed the VBR window (64.4–71.2 V). The SMBJ58AHM3_B/H leverages this margin for stable long-term reliability in noisy environments.
What is the thermal resistance from junction to lead (RθJL) for SMBJ58AHM3_B/H?
The SMBJ58AHM3_B/H has a typical junction-to-lead thermal resistance (RθJL) of 20 °C/W, measured under standard mounting conditions. This parameter enables accurate estimation of junction temperature rise during repetitive surge events or sustained power dissipation, supporting thermal design in space-constrained layouts. When used with recommended 5.0 mm × 5.0 mm copper pads per terminal, the SMBJ58AHM3_B/H achieves effective heat transfer to the PCB, complementing its 5.0 W steady-state power dissipation rating.
Does SMBJ58AHM3_B/H have bidirectional capability?
No, SMBJ58AHM3_B/H is a unidirectional TVS diode, as indicated by the "A" suffix and cathode band marking. It conducts only during reverse-bias overvoltage events and blocks forward current like a standard rectifier. For bidirectional protection, Vishay offers the SMBJ58CA variant (with "CA" suffix), which provides symmetrical clamping in both polarities. The SMBJ58AHM3_B/H must be oriented correctly on PCB - cathode toward the protected line - to function as intended.
SMBJ58AHM3_B/H Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Bulk
- 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):
- 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_B/H FAQ
1.How can I place an order for SMBJ58AHM3_B/H through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ58AHM3_B/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_B/H reliable?
The price and inventory of SMBJ58AHM3_B/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_B/H is usually 5 days.
3.What payment methods are accepted for SMBJ58AHM3_B/H?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ58AHM3_B/H transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ58AHM3_B/H?
SMBJ58AHM3_B/H orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ58AHM3_B/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_B/H?
For technical support, including SMBJ58AHM3_B/H datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ58AHM3_B/H requirements.
6.How does Aetrix verify that SMBJ58AHM3_B/H is sourced from the original manufacturer or authorized distributors?
All SMBJ58AHM3_B/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_B/H meets industry standards.
7.What is the process for return or replacement of SMBJ58AHM3_B/H?
All SMBJ58AHM3_B/H units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ58AHM3_B/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_B/H part is unused and in its original packaging.
Return procedure for SMBJ58AHM3_B/H:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ58AHM3_B/H Tags
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