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Vishay General Semiconductor - Diodes Division SMBJ58AHM3_A/I
- Part No.:
- SMBJ58AHM3_A/I
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ58AHM3_A/I.pdf
- Description:
- TVS DIODE 58VWM 93.6VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,496
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Product details
Overview
SMBJ58AHM3_A/I from Vishay General Semiconductor is a unidirectional surface-mount transient voltage suppressor (TVS) diode in SMB (DO-214AA) package, designed for clamping fast 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, 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, ICs, and sensor interfaces in industrial power supplies and telecom line cards.
For engineers reviewing the SMBJ58AHM3_A/I datasheet, SMBJ58AHM3_A/I pinout, SMBJ58AHM3_A/I application, or SMBJ58AHM3_A/I equivalent, this page delivers verified electrical parameters, thermal derating behavior, AEC-Q101 qualification status, halogen-free RoHS compliance, and real-world clamping performance under repetitive surge conditions.
Technical Context
This TVS diode operates as a unidirectional avalanche clamp, triggered when reverse voltage exceeds its VBR threshold. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1 µA at VWM), while the low incremental surge resistance enables consistent clamping across surge events.
Designed for surface-mount assembly on standard PCB copper pads (0.2" × 0.2"), it meets MSL Level 1 per J-STD-020 with 260 °C reflow peak, and supports automotive-grade reliability via AEC-Q101 qualification (denoted by HM3 suffix). Thermal resistance is 100 °C/W junction-to-ambient and 20 °C/W junction-to-lead.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 58 V - Maximum continuous reverse operating voltage before conduction begins |
| VBR (min/max) | 64.4 V / 71.2 V at 1 mA - Confirmed breakdown range defining turn-on threshold tolerance |
| VC @ IPPM | 93.6 V at 6.4 A - Clamped voltage during 600 W 10/1000 µs surge, limiting downstream stress |
| PPPM | 600 W - Peak pulse power handling capability under standardized transient waveform |
| IFSM | 100 A - Single half-sine surge current rating (8.3 ms), supporting inrush and fault protection |
| TJ max. | +150 °C - Maximum junction temperature enabling operation in high-ambient industrial environments |
| Package | SMB (DO-214AA) - Standardized 2-pin surface-mount outline with cathode band marking |
Pinout & Package
Package: SMB (DO-214AA), 2-terminal surface-mount device with cathode band indicating polarity. Dimensions: 4.57 mm × 3.94 mm × 2.20 mm (L × W × H), matte tin-plated leads compliant with J-STD-002 solderability.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Forward current entry / Reverse surge return path | Connected to protected circuit ground or low-side reference; carries full surge current during clamping |
| Cathode | Reverse voltage sensing / Clamping node | Connected to line being protected (e.g., DC input rail); initiates avalanche conduction above VWM |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables robust protection against IEC 61000-4-5 Level 3/4 surges without derating on standard PCB pads |
| AEC-Q101 qualified (HM3 suffix) | Validated for automotive power electronics including body control modules and ADAS sensor interfaces |
| Halogen-free & RoHS-compliant | Meets IPC-1752A material declaration requirements for green manufacturing and end-of-life recycling |
| Low clamping ratio (VC/VBR ≈ 1.46) | Minimizes overvoltage exposure to downstream ICs compared to higher-ratio TVS devices |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow without baking, reducing production overhead |
Applications
| Industrial Power Supply Input Protection | Automotive Body Control Module (BCM) Power Rail |
|---|---|
Use Scenario: 24 V DC input stage of programmable logic controller (PLC) power module exposed to load dump and inductive switching transients. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between input rail and chassis ground to limit transient voltage to safe levels for upstream DC/DC controller. Use Value: Withstands 600 W surges while clamping to ≤93.6 V, preventing damage to 36 V-rated input capacitors and 40 V-input buck controllers. | Use Scenario: 12 V battery-fed power distribution network in BCM housing microcontrollers, CAN transceivers, and relay drivers. IC Role / Device Role / Timing Role: Primary overvoltage protector on main VBAT rail, activated within <1 ps to suppress load dump spikes up to ISO 7637-2 Pulse 5a. Use Value: AEC-Q101 qualification and 100 A IFSM ensure reliability under repeated automotive load dump events without parameter drift. |
| Telecom Line Card Surge Protection | Industrial Sensor Signal Conditioning Interface |
Use Scenario: Protection of Ethernet PHY power pins (3.3 V or 5 V rails) on carrier-grade access switch line cards subjected to lightning-induced surges. IC Role / Device Role / Timing Role: Secondary-level TVS placed after primary gas discharge tube (GDT), providing fast-response clamping for residual transients. Use Value: Low VC of 93.6 V ensures compatibility with 100 V-rated front-end ESD protection arrays and avoids overstressing PHY ICs rated for 100 V absolute max. | Use Scenario: 24 V analog input channel of industrial IO module receiving signals from pressure/temperature transmitters over long cables. IC Role / Device Role / Timing Role: Rail-to-rail TVS on supply line feeding op-amp signal conditioning circuitry, suppressing EFT bursts and cable-coupled noise. Use Value: 1 µA max reverse leakage at 58 V preserves accuracy of µA-level sensor bias currents and prevents offset drift in precision amplifiers. |
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_A/I | Same electrical specs; RoHS-compliant but not halogen-free; no AEC-Q101 qualification | Suitable for commercial/industrial use only; not approved for automotive ECUs or safety-critical modules | Select when halogen-free content or automotive qualification is not required; lower cost alternative |
| SMCJ58A-H | Higher 1500 W PPPM; larger SMC (DO-214AB) package; same VWM/VC ratings | Used where higher surge margin is needed (e.g., outdoor telecom cabinets); requires larger PCB footprint | Select when system-level surge testing exceeds IEC 61000-4-5 Level 4; verify pad layout compatibility |
Compared with SMBJ58AHM3_A/I, SMBJ58AHE3_A/I lacks halogen-free and AEC-Q101 credentials but matches all electrical parameters, while SMCJ58A-H offers double the pulse power in a physically larger package - choice depends on mechanical constraints, regulatory requirements, and surge test profile.
Availability
SMBJ58AHM3_A/I is available at Aetrix Electronics and suitable for industrial power supplies, automotive body control modules, telecom line cards, and sensor interface designs requiring stable component supply with guaranteed halogen-free and AEC-Q101-compliant sourcing.
Supply support for SMBJ58AHM3_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, TVS devices, and optoelectronics with emphasis on reliability, efficiency, and application-specific optimization.
The SMBJ series is engineered for high-reliability transient suppression in space-constrained surface-mount applications - targeting industrial automation, automotive electronics, and communications infrastructure where compact size, repeatable clamping, and qualification rigor are mandatory.
FAQ
What is the maximum clamping voltage of SMBJ58AHM3_A/I at its rated peak pulse current?
The SMBJ58AHM3_A/I has a maximum clamping voltage (VC) of 93.6 V at its specified peak pulse current (IPPM) of 6.4 A, measured using the 10/1000 µs standard waveform. This value is confirmed in the Vishay datasheet revision 09-Jan-2024, Document Number 88392, and defines the upper voltage limit imposed on protected circuits during surge events. The SMBJ58AHM3_A/I maintains this clamping performance across its qualified temperature range.
Is SMBJ58AHM3_A/I qualified for automotive applications?
Yes, SMBJ58AHM3_A/I is AEC-Q101 qualified, as indicated by the "HM3" suffix in its part number - denoting halogen-free, RoHS-compliant, and automotive-grade reliability. It is approved for use in body control modules, power distribution units, and sensor interfaces where sustained operation at +125 °C ambient and resistance to mechanical shock/vibration are required. The SMBJ58AHM3_A/I qualification covers the full parametric range specified in the datasheet.
What does the "HM3" suffix mean in SMBJ58AHM3_A/I?
The "HM3" suffix in SMBJ58AHM3_A/I indicates halogen-free, RoHS-compliant construction with AEC-Q101 qualification - distinguishing it from commercial-grade variants like "E3" or "M3". It confirms compliance with IPC-1752A material declarations and automotive stress testing including temperature cycling, humidity bias, and accelerated life testing. The SMBJ58AHM3_A/I meets JESD201 Class 2 whisker resistance and J-STD-020 MSL Level 1 reflow requirements.
Can SMBJ58AHM3_A/I be used in bidirectional configurations?
No, SMBJ58AHM3_A/I is a unidirectional TVS diode, as confirmed by its part number structure and datasheet specifications. Bidirectional variants use the "CA" suffix (e.g., SMBJ58CA). The SMBJ58AHM3_A/I features a cathode band marking and is intended for DC rail protection where polarity is fixed; using it in AC or bidirectional signal paths would result in forward conduction during negative half-cycles and potential failure.
What is the thermal resistance of SMBJ58AHM3_A/I from junction to ambient?
The SMBJ58AHM3_A/I has a typical thermal resistance of 100 °C/W from junction to ambient (RθJA) when mounted on the minimum recommended 0.2" × 0.2" copper pads per terminal, as specified in the Vishay datasheet. This value assumes natural convection cooling and is critical for calculating junction temperature rise under steady-state power dissipation (PD = 5.0 W). Derating curves in Figure 2 of the SMBJ58AHM3_A/I datasheet show allowable power reduction above 25 °C ambient.
SMBJ58AHM3_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:
- 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/I FAQ
1.How can I place an order for SMBJ58AHM3_A/I through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ58AHM3_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 SMBJ58AHM3_A/I reliable?
The price and inventory of SMBJ58AHM3_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 SMBJ58AHM3_A/I is usually 5 days.
3.What payment methods are accepted for SMBJ58AHM3_A/I?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ58AHM3_A/I transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ58AHM3_A/I?
SMBJ58AHM3_A/I orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ58AHM3_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 SMBJ58AHM3_A/I?
For technical support, including SMBJ58AHM3_A/I datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ58AHM3_A/I requirements.
6.How does Aetrix verify that SMBJ58AHM3_A/I is sourced from the original manufacturer or authorized distributors?
All SMBJ58AHM3_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 SMBJ58AHM3_A/I meets industry standards.
7.What is the process for return or replacement of SMBJ58AHM3_A/I?
All SMBJ58AHM3_A/I units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ58AHM3_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 SMBJ58AHM3_A/I part is unused and in its original packaging.
Return procedure for SMBJ58AHM3_A/I:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ58AHM3_A/I Tags
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