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Vishay General Semiconductor - Diodes Division SMBJ58A-M3/5B
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- Part No.:
- SMBJ58A-M3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ58A-M3/5B.pdf
- Description:
- TVS DIODE 58VWM 93.6VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,555
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Product details
Overview
SMBJ58A-M3/5B 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, and 600 W peak pulse power rating with 10/1000 µs waveform - deployed in industrial motor drives to safeguard MOSFET gate drivers against inductive switching transients.
For engineers reviewing the SMBJ58A-M3/5B datasheet, SMBJ58A-M3/5B pinout, SMBJ58A-M3/5B application, or SMBJ58A-M3/5B equivalent, this page delivers verified electrical parameters, thermal derating behavior, clamping performance under surge conditions, polarity marking convention, and halogen-free RoHS-compliant sourcing status per Vishay's M3 suffix specification.
Technical Context
The SMBJ58A-M3/5B operates as a unidirectional avalanche diode, conducting only when reverse voltage exceeds its VBR threshold and clamping transient energy into the PCB ground plane. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<1 µA at 58 V), while its low incremental surge resistance enables rapid voltage limiting during fast-rising ESD or lightning-induced surges.
Thermally, it exhibits RθJA = 100 °C/W (on standard 0.2" × 0.2" copper pads) and RθJL = 20 °C/W, supporting reliable operation up to TJ = 150 °C. The device is rated for 100 A non-repetitive forward surge current (IFSM, 8.3 ms half-sine) and meets J-STD-020 MSL Level 1 with 260 °C reflow peak temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 58 V - Maximum continuous reverse operating voltage before conduction begins; defines safe DC rail margin for 48 V systems. |
| VBR @ IT = 1 mA | 64.4–71.2 V - Verified breakdown range ensuring consistent turn-on across production lots; guarantees predictable clamping onset. |
| VC @ IPPM = 6.4 A | 93.6 V - Measured clamping voltage under 10/1000 µs surge; limits downstream IC stress to ≤93.6 V during 600 W transient events. |
| PPPM | 600 W - Peak pulse power handling capability with 0.01% duty cycle; supports repetitive surge immunity in motor control feedback loops. |
| IFSM | 100 A - Single-half-sine surge rating (8.3 ms); protects against high-energy inductive kickback in relay or solenoid drive circuits. |
| TJ max. | 150 °C - Maximum junction temperature; enables operation in enclosed industrial enclosures without forced cooling. |
| Package | SMB (DO-214AA) - Standardized surface-mount outline with cathode band marking; compatible with automated pick-and-place and reflow soldering. |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads, UL 94 V-0 rated, halogen-free (M3 suffix), RoHS-compliant. Cathode indicated by a band on the body end; anode is unmarked opposite end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Transient current sink | Connected to protected line; conducts surge current to ground when VREV > VBR; must be routed with low-inductance path to chassis or power ground. |
| Anode (unbanded end) | Reference node | Connected to system ground or return path; establishes reference for clamping action; requires low-impedance grounding to maintain VC integrity. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables single-device protection of 48 V DC bus lines against IEC 61000-4-5 Level 3 (1 kV/2 Ω) surges without cascaded TVS staging. |
| Low clamping ratio (VC/VBR ≈ 1.42) | Minimizes overvoltage overshoot during transients, reducing stress on downstream 100 V-rated MOSFETs and gate drivers. |
| MSL Level 1, 260 °C reflow compatible | Supports lead-free assembly without moisture sensitivity concerns or pre-bake requirements in high-volume SMT lines. |
| Halogen-free, RoHS-compliant (M3 suffix) | Fulfills environmental compliance mandates for industrial and automotive-tier suppliers requiring full material declaration (IMDS, IPC-1752). |
| 150 °C maximum junction temperature | Permits deployment in thermally constrained environments such as sealed motor control modules or outdoor telecom power supplies. |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
|
Use Scenario: Protection of gate driver ICs and bootstrap FETs in 48 V BLDC motor inverters subjected to inductive turn-off spikes. IC Role / Device Role / Timing Role: Unidirectional TVS clamp placed between high-side gate and source, absorbing negative-going transients during PWM switching. Use Value: Limits gate-source voltage excursion to ≤93.6 V, preventing oxide breakdown in 100 V-rated Si MOSFETs and ensuring >100,000-cycle reliability. |
Use Scenario: Input protection of LIN bus transceivers and microcontroller I/O pins exposed to load dump and jump-start events. IC Role / Device Role / Timing Role: Standoff-rated TVS on 12 V supply rail upstream of LDO regulators, triggered only during >58 V overvoltage events. Use Value: Clamps 200 V/500 ms load dump to <94 V within 1 ns, preserving regulator input rating and avoiding brownout resets. |
| Telecom Power Feeds | Renewable Energy Inverters |
|
Use Scenario: Surge suppression on -48 V DC telecom plant feeds vulnerable to lightning-induced common-mode transients. IC Role / Device Role / Timing Role: Unidirectional TVS connected cathode-to-line, anode-to-ground, shunting differential surges before they reach DC/DC converters. Use Value: Withstands repeated 600 W surges per IEC 61000-4-5, maintaining VWM stability over 10-year field life in central office environments. |
Use Scenario: DC link protection in solar string inverters where PV array transients couple into MPPT controller power rails. IC Role / Device Role / Timing Role: Primary overvoltage clamp on 600 V DC bus input stage, coordinated with MOVs for multi-level energy absorption. Use Value: Provides fast-response clamping (sub-nanosecond) ahead of slower thermal devices, reducing voltage overshoot by ≥35% versus MOV-only designs. |
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-E3/5B | Same electrical specs and SMB package; RoHS-compliant but contains brominated flame retardants (non-halogen-free). | Acceptable for commercial-grade equipment without halogen restrictions (e.g., consumer electronics, non-automotive industrial). | Select when halogen-free certification is not required and cost optimization is prioritized over material compliance. |
| SMBJ58CA-M3/5B | Bidirectional variant; symmetric VBR = 64.4–71.2 V, same VC = 93.6 V, but supports AC-coupled or floating signal line protection. | Required for differential data lines (e.g., RS-485, CAN) or AC-powered inputs where polarity reversal may occur. | Choose only if bidirectional clamping is needed; unidirectional SMBJ58A-M3/5B offers lower leakage and tighter VWM margin for DC rails. |
Compared with SMBJ58A-E3/5B, the M3 version adds halogen-free compliance without sacrificing surge rating or thermal performance; compared with SMBJ58CA-M3/5B, the unidirectional configuration provides superior reverse leakage control and higher DC voltage margin for fixed-polarity power rails.
Availability
SMBJ58A-M3/5B is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, telecom power feeds, and renewable energy inverters requiring stable component supply with full halogen-free and RoHS compliance documentation.
Supply support for SMBJ58A-M3/5B 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 high-reliability, automotive-qualified, and industry-standard packaging.
The SMBJ series was developed specifically for surface-mount transient suppression in space-constrained, high-surge environments - targeting industrial automation, transportation, and telecom infrastructure where long-term parametric stability and AEC-Q101 readiness matter.
FAQ
What is the maximum clamping voltage of SMBJ58A-M3/5B under a 10/1000 µs surge?
The SMBJ58A-M3/5B has a maximum clamping voltage (VC) of 93.6 V when subjected to a 6.4 A peak pulse current with a 10/1000 µs waveform. This value is measured per JEDEC standards and confirmed in Vishay's datasheet revision 09-Jan-2024, Document Number 88392. It defines the upper voltage limit imposed on protected circuitry during standardized surge events - critical for validating compatibility with 100 V-rated downstream components in the SMBJ58A-M3/5B application chain.
Does SMBJ58A-M3/5B meet automotive qualification standards?
The SMBJ58A-M3/5B itself is not AEC-Q101 qualified; it carries the M3 suffix indicating halogen-free, RoHS-compliant commercial grade. For automotive use, Vishay offers the HM3 variant (e.g., SMBJ58A-HM3/5B), which adds AEC-Q101 qualification. Engineers specifying SMBJ58A-M3/5B must verify that their application falls outside automotive safety-critical domains - the SMBJ58A-M3/5B remains fully suitable for industrial and telecom applications where AEC-Q101 is not mandated.
How does the M3 suffix differ from E3 in SMBJ58A-M3/5B vs. SMBJ58A-E3/5B?
The M3 suffix in SMBJ58A-M3/5B denotes halogen-free, RoHS-compliant construction using bromine-free flame retardants, whereas E3 indicates RoHS compliance with conventional brominated compounds. Both share identical electrical specs, SMB package, and thermal ratings. The SMBJ58A-M3/5B is specified for applications requiring full material declarations (e.g., IPC-1752, IMDS) and stricter environmental compliance - making it the preferred choice for EU industrial equipment and Tier 1 automotive suppliers even when AEC-Q101 is not required.
What is the thermal resistance of SMBJ58A-M3/5B, and how does it affect layout?
SMBJ58A-M3/5B has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value assumes minimal copper area; increasing pad size or adding thermal vias reduces RθJA. Layouts must allocate sufficient copper to keep junction temperature below 150 °C during repetitive surges - especially important in SMBJ58A-M3/5B deployments in enclosed enclosures or high-ambient-temperature environments like motor drive cabinets.
Can SMBJ58A-M3/5B be used in bidirectional signal protection?
No - SMBJ58A-M3/5B is strictly unidirectional and conducts only when reverse-biased beyond its VBR. For bidirectional signal lines (e.g., RS-485, USB, CAN), the bidirectional variant SMBJ58CA-M3/5B must be used. Attempting to use SMBJ58A-M3/5B on AC or polarity-agnostic paths risks forward conduction during normal operation and failure to clamp positive transients. Always match SMBJ58A-M3/5B polarity to the DC rail orientation: cathode to protected line, anode to ground.
SMBJ58A-M3/5B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-214AA, SMB
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- 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:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBJ)
SMBJ58A-M3/5B FAQ
1.How can I place an order for SMBJ58A-M3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ58A-M3/5B 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 SMBJ58A-M3/5B reliable?
The price and inventory of SMBJ58A-M3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBJ58A-M3/5B is usually 5 days.
3.What payment methods are accepted for SMBJ58A-M3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ58A-M3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ58A-M3/5B?
SMBJ58A-M3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ58A-M3/5B 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 SMBJ58A-M3/5B?
For technical support, including SMBJ58A-M3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ58A-M3/5B requirements.
6.How does Aetrix verify that SMBJ58A-M3/5B is sourced from the original manufacturer or authorized distributors?
All SMBJ58A-M3/5B 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 SMBJ58A-M3/5B meets industry standards.
7.What is the process for return or replacement of SMBJ58A-M3/5B?
All SMBJ58A-M3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ58A-M3/5B, 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 SMBJ58A-M3/5B part is unused and in its original packaging.
Return procedure for SMBJ58A-M3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ58A-M3/5B Tags
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