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Vishay General Semiconductor - Diodes Division SMBJ6.0A-M3/5B
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- Part No.:
- SMBJ6.0A-M3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-214AA, SMB
- Datasheet:
-
SMBJ6.0A-M3/5B.pdf
- Description:
- TVS DIODE 6VWM 10.3VC DO214AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,254
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Product details
Overview
SMBJ6.0A-M3/5B 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 6.0 V stand-off voltage (VWM), 6.67–7.37 V breakdown voltage (VBR) at 10 mA, 600 W peak pulse power (10/1000 µs), and clamps to ≤10.3 V at 58.3 A peak surge current - used to protect MOSFETs, ICs, and sensor interfaces in industrial power supplies and automotive control modules.
For engineers reviewing the SMBJ6.0A-M3/5B datasheet, SMBJ6.0A-M3/5B pinout, SMBJ6.0A-M3/5B application, or SMBJ6.0A-M3/5B equivalent, key selection criteria include unidirectional polarity, 10.3 V clamping voltage at rated IPPM, halogen-free RoHS-compliant construction (M3 suffix), MSL Level 1 rating, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This TVS diode operates as a voltage-clamping protection device that enters avalanche conduction when reverse voltage exceeds its VBR threshold, limiting transient energy to downstream circuitry. Its glass-passivated junction ensures stable breakdown characteristics and low leakage (<800 µA at VWM), while the low incremental surge resistance enables effective suppression of 10/1000 µs surges up to 600 W.
The SMBJ6.0A-M3/5B is rated for -55 °C to +150 °C operating junction temperature, exhibits 0.059 %/°C VBR temperature coefficient, and maintains clamping performance under repetitive surge conditions at 0.01 % duty cycle - making it suitable for environments with frequent switching-induced transients such as motor drives and DC-DC converter inputs.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM (Stand-off Voltage) | 6.0 V - Maximum continuous reverse working voltage before significant leakage; sets minimum system operating margin. |
| VBR (Breakdown Voltage) | 6.67–7.37 V at 10 mA - Confirmed avalanche initiation range; defines precise clamping onset threshold. |
| VC (Clamping Voltage) | ≤10.3 V at 58.3 A IPPM - Measured maximum voltage seen by protected circuit during full-rated surge event. |
| PPPM (Peak Pulse Power) | 600 W (10/1000 µs waveform) - Energy-handling capacity for standardized lightning/surge immunity testing per IEC 61000-4-5. |
| IPPM (Peak Pulse Current) | 58.3 A - Surge current level at which VC is specified; determines minimum trace width and PCB pad sizing. |
| TJmax | +150 °C - Maximum junction temperature; supports operation in high-ambient environments like engine control units. |
| Package | SMB (DO-214AA) - Standardized surface-mount outline with cathode band marking; compatible with JEDEC MS-012AC. |
Pinout & Package
Package: SMB (DO-214AA), molded plastic case with matte tin-plated leads, MSL Level 1 (260 °C peak reflow), UL 94 V-0 rated compound. Cathode indicated by band on body; anode is unmarked end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Cathode (banded end) | Reverse-biased avalanche terminal | Connected to protected line; conducts during overvoltage to shunt current to ground or rail. |
| Anode (unbanded end) | Reference/return terminal | Typically tied to ground or lower-potential rail; completes clamping path during transient events. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 µs) | Enables compliance with IEC 61000-4-5 Level 4 surge immunity requirements without external series impedance. |
| Low clamping voltage (10.3 V @ 58.3 A) | Provides tight voltage margin for 5 V logic and microcontroller I/O protection without over-clamping risk. |
| Glass passivated junction | Ensures long-term stability of VBR and leakage performance across thermal cycling and humidity exposure. |
| Halogen-free, RoHS-compliant (M3 suffix) | Meets IPC-1752A material declaration requirements and EU Directive 2011/65/EU Annex II updates. |
| MSL Level 1 moisture sensitivity | Allows unlimited floor life and standard reflow profile use without baking preconditioning prior to assembly. |
Applications
| Industrial Motor Drives | Automotive Body Control Modules |
|---|---|
|
Use Scenario: Protection of gate drivers and MCU I/O against inductive kickback from relay and solenoid switching. IC Role / Device Role / Timing Role: Unidirectional TVS placed between MOSFET gate and source, or across MCU GPIO and chassis ground. Use Value: Limits transient voltage to ≤10.3 V, preventing latch-up or oxide damage in 5 V-tolerant microcontrollers and gate drivers. |
Use Scenario: Input line protection for LIN bus transceivers and sensor supply rails exposed to load dump and jump-start events. IC Role / Device Role / Timing Role: Standoff-rated TVS connected between 12 V supply rail and ground, upstream of LDO regulators. Use Value: Withstands 600 W surges while maintaining <800 µA leakage at 6.0 V, preserving quiescent current budget in always-on modules. |
| Consumer Power Adapters | Telecom Interface Cards |
|
Use Scenario: Secondary-side overvoltage suppression on 5 V USB-C PD output rails subject to feedback loop faults. IC Role / Device Role / Timing Role: Clamping device placed across output capacitor terminals, referenced to common ground plane. Use Value: Fast response time (<1 ns) and 10.3 V clamping ensure downstream USB-PD controllers remain within absolute maximum ratings during fault conditions. |
Use Scenario: RS-485 data line protection against ESD and induced surges in base station backplane interfaces. IC Role / Device Role / Timing Role: Unidirectional TVS on each differential pair (A and B), cathode to signal, anode to ground. Use Value: Low capacitance (typ. 350 pF at 0 V) avoids signal integrity degradation at 10 Mbps data rates while providing 600 W surge handling. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ6.0A-E3/5B | Same electrical specs; RoHS-compliant but not halogen-free (E3 vs M3). | Preferred for commercial-grade non-automotive designs where halogen content is unrestricted. | Select when cost optimization is prioritized and halogen-free certification is not required. |
| SMBJ6.0CA-M3/5B | Bidirectional variant; symmetric VBR (6.4–7.25 V), no polarity marking, same VC (10.3 V). | Required for AC-coupled or floating signal lines (e.g., Ethernet PHY, audio inputs) where polarity reversal occurs. | Choose only when bidirectional clamping is explicitly needed; not a drop-in replacement for unidirectional layout. |
Compared with SMBJ6.0A-E3/5B, the SMBJ6.0A-M3/5B offers halogen-free compliance for stricter environmental programs, while SMBJ6.0CA-M3/5B provides symmetrical clamping essential for AC signals - neither replaces the original in unidirectional DC applications without layout review.
Availability
SMBJ6.0A-M3/5B is available at Aetrix Electronics and suitable for industrial motor drives, automotive body control modules, and consumer power adapters requiring stable component supply with halogen-free compliance and MSL Level 1 reflow capability.
Supply support for SMBJ6.0A-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, TVS devices, and optoelectronics with emphasis on reliability, power efficiency, and automotive qualification.
The SMBJ series is engineered for robust transient suppression in harsh environments - targeting design-in for automotive, industrial, and telecom systems where surge immunity and long-term parametric stability are critical.
FAQ
What is the clamping voltage of SMBJ6.0A-M3/5B at its rated peak pulse current?
The SMBJ6.0A-M3/5B has a maximum clamping voltage (VC) of 10.3 V when subjected to its rated peak pulse current (IPPM) of 58.3 A using a 10/1000 µs waveform. This value is measured under standardized test conditions per ANSI/IEEE C62.35 and defines the upper voltage limit imposed on protected circuitry during surge events. The SMBJ6.0A-M3/5B maintains this clamping performance across its qualified operating temperature range.
Is SMBJ6.0A-M3/5B suitable for automotive applications?
The SMBJ6.0A-M3/5B itself is commercial-grade and not AEC-Q101 qualified; however, Vishay offers the automotive-qualified variant SMBJ6.0A-HM3_B/I with identical electrical specs and halogen-free construction. For non-safety-critical automotive subsystems where AEC-Q101 is not mandated, SMBJ6.0A-M3/5B may be used with customer validation. The SMBJ6.0A-M3/5B meets MSL Level 1 and operates from -55 °C to +150 °C, supporting under-hood ambient conditions.
How does the M3 suffix affect the SMBJ6.0A-M3/5B specification?
"M3" denotes halogen-free, RoHS-compliant construction per IEC 61249-2-21, with no brominated flame retardants or chlorine-based additives in the molding compound. It does not alter electrical parameters - VWM, VBR, VC, and PPPM remain identical to E3-suffix variants. The SMBJ6.0A-M3/5B retains the same SMB package dimensions, thermal resistance (RθJA = 100 °C/W), and solderability per J-STD-002, making it a direct material-compliance upgrade for eco-sensitive designs.
What is the reverse leakage current of SMBJ6.0A-M3/5B at its stand-off voltage?
At the rated stand-off voltage (VWM) of 6.0 V and TA = 25 °C, the SMBJ6.0A-M3/5B exhibits a maximum reverse leakage current (ID) of 800 µA. This value is confirmed in the Vishay datasheet (Document Number: 88392, Rev. 09-Jan-2024) and reflects worst-case leakage under nominal operating conditions. Leakage remains well below 1 mA, ensuring minimal impact on low-power sensor or battery-backed circuits where SMBJ6.0A-M3/5B is deployed.
Can SMBJ6.0A-M3/5B be used in bidirectional signal protection?
No - SMBJ6.0A-M3/5B is a unidirectional TVS diode, marked with a cathode band and intended for DC-biased lines where polarity is fixed. For bidirectional signal protection (e.g., RS-485, USB D+/D-, audio lines), the SMBJ6.0CA-M3/5B variant must be used. That part has symmetric breakdown behavior and no polarity marking. Using SMBJ6.0A-M3/5B on AC or reversible signals risks forward conduction and failure; the SMBJ6.0A-M3/5B is strictly for unidirectional clamping applications.
SMBJ6.0A-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):
- 6V
- Voltage - Breakdown (Min):
- 6.67V
- Voltage - Clamping (Max) @ Ipp:
- 10.3V
- Current - Peak Pulse (10/1000µs):
- 58.3A
- 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)
SMBJ6.0A-M3/5B FAQ
1.How can I place an order for SMBJ6.0A-M3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBJ6.0A-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 SMBJ6.0A-M3/5B reliable?
The price and inventory of SMBJ6.0A-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 SMBJ6.0A-M3/5B is usually 5 days.
3.What payment methods are accepted for SMBJ6.0A-M3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBJ6.0A-M3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBJ6.0A-M3/5B?
SMBJ6.0A-M3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBJ6.0A-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 SMBJ6.0A-M3/5B?
For technical support, including SMBJ6.0A-M3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBJ6.0A-M3/5B requirements.
6.How does Aetrix verify that SMBJ6.0A-M3/5B is sourced from the original manufacturer or authorized distributors?
All SMBJ6.0A-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 SMBJ6.0A-M3/5B meets industry standards.
7.What is the process for return or replacement of SMBJ6.0A-M3/5B?
All SMBJ6.0A-M3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBJ6.0A-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 SMBJ6.0A-M3/5B part is unused and in its original packaging.
Return procedure for SMBJ6.0A-M3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBJ6.0A-M3/5B Tags
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