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Vishay General Semiconductor - Diodes Division SMBG5.0CA-M3/5B
- Part No.:
- SMBG5.0CA-M3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG5.0CA-M3/5B.pdf
- Description:
- TVS DIODE 5VWM 9.2VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:4,935
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Product details
Overview
SMBG5.0CA-M3/5B from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMBG (DO-215AA) package, rated for 5.0 V stand-off voltage, 6.4–7.25 V breakdown voltage at 10 mA, 600 W peak pulse power (10/1000 μs), and clamping voltage of 9.2 V at 65.2 A. It protects signal lines and ICs in automotive sensor units and industrial control interfaces against ESD and inductive switching transients.
For engineers reviewing the SMBG5.0CA-M3/5B datasheet, SMBG5.0CA-M3/5B pinout, SMBG5.0CA-M3/5B application, or SMBG5.0CA-M3/5B equivalent, key selection criteria include bidirectional clamping behavior, 9.2 V max clamping at 65.2 A, AEC-Q101 qualification, halogen-free RoHS compliance (M3 suffix), and SMBG package thermal resistance (RθJL = 20 °C/W).
Technical Context
This device operates as a voltage-clamped surge protector with symmetrical bidirectional conduction-no polarity marking required. Its glass-passivated junction enables fast response (<1 ns) and low incremental surge resistance, critical for protecting low-voltage logic inputs and analog sensor front-ends.
Designed for surface-mount automated placement, it meets MSL Level 1 (260 °C peak reflow) and supports repetitive surge duty cycles up to 0.01 % under derated conditions. The 5.0 V VWM rating targets 3.3 V and 5 V rail protection where tight clamping margin is essential.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 5.0 V - Maximum continuous reverse operating voltage before clamping begins |
| VBR (min/max) | 6.4 V / 7.25 V at IT = 10 mA - Ensures reliable turn-on above system nominal voltage while avoiding false triggering |
| VC @ IPPM | 9.2 V at 65.2 A - Clamping voltage limits stress on downstream 5 V logic during 600 W transients |
| PPPM | 600 W (10/1000 μs) - Sustains high-energy surges common in automotive load-dump and inductive switch-off events |
| IPPM | 65.2 A - Peak surge current capability compatible with IEC 61000-4-5 Level 4 test profiles |
| TJ max | 150 °C - Enables operation in under-hood automotive environments and sealed industrial enclosures |
| Qualification | AEC-Q101 qualified - Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, bidirectional - no cathode/anode marking; symmetrical two-terminal construction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Terminal 1 | Anode/Cathode (bidirectional) | Either terminal serves as anode or cathode depending on transient polarity; no polarity dependency in circuit layout |
| Terminal 2 | Anode/Cathode (bidirectional) | Electrically identical to Terminal 1; device functions identically regardless of orientation on PCB |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Enables single-device protection of AC-coupled or differential signal lines (e.g., CAN, RS-485) without polarity concerns |
| 600 W peak pulse power | Withstands IEC 61000-4-5 combination wave surges (1.2/50 μs voltage + 8/20 μs current) up to Level 4 in properly designed layouts |
| AEC-Q101 qualification | Validated for automotive applications including engine control modules, ADAS sensors, and body electronics |
| Halogen-free & RoHS compliant (M3) | Meets JESD201 Class 2 whisker resistance and global environmental compliance requirements for industrial and automotive production |
| Low RθJL = 20 °C/W | Enables efficient heat transfer to PCB copper pads, supporting sustained surge repetition in thermally constrained designs |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting analog output lines of pressure/temperature sensors in engine bay modules exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional TVS clamp placed directly at connector entry point to limit transient voltage to ≤9.2 V before reaching ADC input or op-amp buffer. Use Value: Prevents latch-up or permanent damage to 5 V rail-connected signal conditioning ICs during 100 V/100 ms load dump events. | Use Scenario: Safeguarding 24 V digital input channels on programmable logic controller (PLC) base units subject to field-wiring induced surges. IC Role / Device Role / Timing Role: Standoff-rated TVS shunting transients between input line and common, triggered only above 6.4 V to avoid interference with valid 24 V logic thresholds. Use Value: Maintains functional safety integrity by limiting surge energy dissipation to <100 mJ per event, preserving long-term reliability of optocoupler isolation stages. |
| USB Port ESD Protection | RS-485 Transceiver Interface |
Use Scenario: Secondary-level ESD protection on USB 2.0 D+/D− lines in embedded host devices where primary protection resides upstream. IC Role / Device Role / Timing Role: Low-capacitance bidirectional clamp (CJ ≈ 1000 pF at 0 V) placed adjacent to USB connector to suppress ±15 kV contact discharge per IEC 61000-4-2. Use Value: Limits voltage excursion to <9.2 V during ESD events, preventing data corruption or PHY layer reset without degrading 480 Mbps signal integrity. | Use Scenario: Bus-side transient suppression on half-duplex RS-485 nodes in factory automation networks with long cable runs. IC Role / Device Role / Timing Role: Symmetrical clamp across A/B differential pair, activated only during overvoltage faults exceeding ±6.4 V to preserve common-mode range during normal operation. Use Value: Enables robust communication under IEC 61000-4-4 EFT bursts (4 kV, 5 kHz) by clamping differential spikes to <18.4 V peak-to-peak. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ5.0CA | Same VWM/VBR/VC, but lower PPPM = 600 W (same rating) and higher IPPM = 69.4 A; SMB (DO-214AA) package, slightly larger footprint | Less suitable for ultra-dense layouts; higher thermal mass may reduce response consistency in high-frequency surge environments | Select SMBJ5.0CA only if existing PCB uses SMB pad layout or requires marginally higher surge current headroom |
| SMCJ5.0CA | Same electrical specs but in larger SMC (DO-214AB) package; PPPM = 1500 W, IPPM = 172 A; RθJL = 15 °C/W | Over-specified for 5 V rail protection; better suited for 24–48 V systems or where >1 kA surge immunity is required | Choose SMCJ5.0CA when designing for harsher environments (e.g., railway or heavy machinery) requiring higher energy absorption and lower thermal resistance |
Compared with SMBJ5.0CA and SMCJ5.0CA, SMBG5.0CA-M3/5B delivers identical clamping performance in the smallest possible footprint (SMBG), optimized for space-constrained automotive and portable industrial modules where AEC-Q101 compliance and halogen-free materials are mandatory.
Availability
SMBG5.0CA-M3/5B is available at Aetrix Electronics and suitable for automotive sensor modules, industrial PLC I/O cards, and USB/RS-485 interface protection requiring stable component supply, AEC-Q101 validation, and halogen-free manufacturing compliance.
Supply support for SMBG5.0CA-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 reliability, efficiency, and application-specific optimization.
The SMBG series was developed to deliver high-power transient suppression in ultra-low-profile surface-mount packages for next-generation automotive and industrial electronics where board space and thermal constraints are critical.
FAQ
What is the maximum clamping voltage of SMBG5.0CA-M3/5B and under what test condition?
The SMBG5.0CA-M3/5B has a maximum clamping voltage (VC) of 9.2 V, measured at a peak pulse current (IPPM) of 65.2 A using a 10/1000 μs double-exponential waveform. This value is guaranteed across the full operating temperature range and reflects worst-case clamping performance during standardized surge testing.
Is SMBG5.0CA-M3/5B suitable for automotive applications?
Yes, SMBG5.0CA-M3/5B is AEC-Q101 qualified and specifically designed for automotive use. Its halogen-free (M3) construction, 150 °C maximum junction temperature, and validated performance under temperature cycling, HTRB, and ESD stress make it appropriate for engine control units, ADAS sensors, and body electronics modules.
Does SMBG5.0CA-M3/5B have polarity markings on the package?
No, SMBG5.0CA-M3/5B is a bidirectional TVS diode and carries no polarity marking. Both terminals are functionally identical; the device clamps symmetrically for positive or negative transients, allowing unrestricted orientation during PCB placement.
What is the meaning of the "M3" and "5B" suffixes in SMBG5.0CA-M3/5B?
The "M3" suffix indicates halogen-free, RoHS-compliant construction meeting JESD201 Class 2 whisker resistance. The "5B" denotes packaging in 13-inch diameter tape-and-reel format with 3200 units per reel-optimized for high-volume SMT assembly lines.
How does SMBG5.0CA-M3/5B compare to unidirectional variants like SMBG5.0A-M3/5B?
SMBG5.0CA-M3/5B provides symmetrical bidirectional clamping ideal for AC signals or differential buses, whereas SMBG5.0A-M3/5B is unidirectional with cathode band marking and only clamps in reverse bias. Electrical parameters (VWM, VBR, VC) are closely matched, but SMBG5.0CA-M3/5B eliminates polarity-dependent layout constraints.
SMBG5.0CA-M3/5B Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Package/Case:
- DO-215AA, SMB Gull Wing
- Series:
- TransZorb®
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Type:
- Zener
- Unidirectional Channels:
- -
- Bidirectional Channels:
- 1
- Voltage - Reverse Standoff (Typ):
- 5V
- Voltage - Breakdown (Min):
- 6.4V
- Voltage - Clamping (Max) @ Ipp:
- 9.2V
- Current - Peak Pulse (10/1000µs):
- 65.2A
- Power - Peak Pulse:
- 600W
- Power Line Protection:
- No
- Applications:
- General Purpose
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -65°C ~ 175°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBG)
SMBG5.0CA-M3/5B FAQ
1.How can I place an order for SMBG5.0CA-M3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG5.0CA-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 SMBG5.0CA-M3/5B reliable?
The price and inventory of SMBG5.0CA-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 SMBG5.0CA-M3/5B is usually 5 days.
3.What payment methods are accepted for SMBG5.0CA-M3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG5.0CA-M3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG5.0CA-M3/5B?
SMBG5.0CA-M3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG5.0CA-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 SMBG5.0CA-M3/5B?
For technical support, including SMBG5.0CA-M3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG5.0CA-M3/5B requirements.
6.How does Aetrix verify that SMBG5.0CA-M3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG5.0CA-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 SMBG5.0CA-M3/5B meets industry standards.
7.What is the process for return or replacement of SMBG5.0CA-M3/5B?
All SMBG5.0CA-M3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG5.0CA-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 SMBG5.0CA-M3/5B part is unused and in its original packaging.
Return procedure for SMBG5.0CA-M3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG5.0CA-M3/5B Tags
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Diodes Incorporated
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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