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Vishay General Semiconductor - Diodes Division SMBG9.0CA-M3/5B
- Part No.:
- SMBG9.0CA-M3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG9.0CA-M3/5B.pdf
- Description:
- TVS DIODE 9VWM 15.4VC DO215AA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SMBG9.0CA-M3/5B from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMBG (DO-215AA) package, designed for robust overvoltage protection of signal and power lines. It features a 9.0 V stand-off voltage (VWM), 10.0–11.1 V breakdown voltage (VBR) at 1 mA test current, 15.4 V maximum clamping voltage (VC) at 39.0 A peak pulse current, and 600 W peak pulse power rating with 10/1000 μs waveform - deployed in automotive sensor interfaces, industrial I/O protection, and telecom line surge suppression.
For engineers reviewing the SMBG9.0CA-M3/5B datasheet, SMBG9.0CA-M3/5B pinout, SMBG9.0CA-M3/5B application, or SMBG9.0CA-M3/5B equivalent, key selection criteria include bidirectional clamping behavior, AEC-Q101 qualification, halogen-free RoHS compliance (M3 suffix), 150 °C max junction temperature, and compatibility with automated SMT placement on standard PCB pad layouts.
Technical Context
This device operates as a voltage-clamped shunt protector: under normal conditions it presents high impedance (>1 μA leakage at 9.0 V), but triggers into low-impedance conduction when transient voltage exceeds its breakdown threshold in either polarity. Its glass-passivated junction ensures stable VBR tolerance (±5 % typical) and fast response (<1 ns), while the SMBG package delivers thermal resistance of 20 °C/W (junction-to-lead) and meets MSL Level 1 reflow requirements (260 °C peak).
The SMBG9.0CA-M3/5B is rated for non-repetitive 10/1000 μs surges up to 39.0 A and supports continuous operation from –55 °C to +150 °C. Its bidirectional symmetry eliminates polarity concerns in AC-coupled or floating lines, and its 1.0 μA max reverse leakage at VWM minimizes standby power impact in battery-sensitive systems.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.0 V - Maximum continuous reverse operating voltage before significant leakage begins; defines safe working range for protected circuitry. |
| VBR (min/max) | 10.0 V / 11.1 V at 1 mA - Confirmed breakdown onset range; ensures reliable triggering above system nominal voltage with margin. |
| VC @ IPPM | 15.4 V at 39.0 A - Clamped voltage during worst-case 600 W transient; determines maximum stress imposed on downstream ICs. |
| PPPM | 600 W - Peak pulse power handling per 10/1000 μs waveform; validates suitability for IEC 61000-4-5 Level 3/4 surge events. |
| TJ max | +150 °C - Maximum junction temperature; enables use in under-hood automotive or high-ambient industrial environments. |
| Leakage @ VWM | 1.0 μA - Ultra-low reverse current at stand-off voltage; critical for low-power sensor nodes and battery-backed circuits. |
| Package | SMBG (DO-215AA) - Surface-mount outline with 5.97 mm × 4.06 mm footprint and 2.16 mm height; optimized for automated pick-and-place and thermal dissipation. |
Pinout & Package
Package: SMBG (DO-215AA) - molded plastic case with matte tin-plated leads, compliant with J-STD-002 solderability and JESD 22-B102 whisker testing. No polarity marking on bidirectional variants; terminals are symmetrical and interchangeable.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional surge path | Either terminal serves as anode or cathode depending on transient polarity; no DC bias dependency - ideal for AC, differential, or floating lines. |
| Case / Body | Thermal and mechanical reference | Non-conductive molding compound; thermal path routed through leads to PCB copper pads (0.2" × 0.2" recommended per terminal). |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD testing - suitable for engine control, ADAS sensors, and infotainment power rails. |
| Halogen-free & RoHS compliant (M3) | Meets IPC/JEDEC J-STD-20 and JEDEC JESD201 Class 2 whisker resistance - supports green manufacturing and long-term supply chain compliance. |
| 600 W peak pulse power (10/1000 μs) | Withstands IEC 61000-4-5 combination wave surges up to 4 kV (open-circuit)/2 kA (short-circuit) without degradation. |
| Low clamping ratio (VC/VBR ≈ 1.45) | Minimizes let-through voltage during transients - protects 12 V logic interfaces and 3.3 V/5 V microcontrollers without additional series impedance. |
| Fast response time (<1 ns) | Clamps before most semiconductor junctions experience avalanche failure - preserves integrity of MOSFET gates, ADC inputs, and CAN transceivers. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting LIN bus and analog sensor outputs (e.g., pressure, temperature) in engine compartments exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role / Timing Role: Bidirectional shunt clamp placed directly at connector entry point to divert transients before reaching MCU analog front-end or LIN transceiver. Use Value: Maintains signal integrity under –120 V to +120 V transients while adding <1 pF capacitance - avoids signal distortion on 20 kHz sensor bandwidths. |
Use Scenario: Safeguarding 24 V digital input modules in factory automation against inductive switching spikes from solenoids and contactors. IC Role / Device Role / Timing Role: Primary overvoltage clamp across input terminals, coordinated with upstream fuse and series resistor for energy coordination. Use Value: Limits voltage to ≤15.4 V during 100 A surge events - prevents latch-up in optocoupler input stages and extends module service life. |
| Telecom Line Interface | Consumer USB Port ESD Protection |
Use Scenario: Shielding RS-485 transceivers and Ethernet PHYs in outdoor base stations from lightning-induced surges on twisted-pair cabling. IC Role / Device Role / Timing Role: First-stage coarse protection ahead of TVS arrays and common-mode chokes; handles bulk energy before secondary clamping. Use Value: Absorbs 600 W peak energy without parametric shift - reduces need for oversized secondary protectors and saves board space. |
Use Scenario: Providing system-level ESD immunity on USB 2.0 data lines (D+/D–) and VBUS in portable medical devices and smart home hubs. IC Role / Device Role / Timing Role: Bidirectional clamp bridging differential pair or VBUS-to-GND, leveraging symmetry to avoid polarity misplacement during assembly. Use Value: Delivers >30 kV HBM ESD protection while maintaining <0.5 pF inter-electrode capacitance - preserves USB full-speed signal integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ9.0CA | Same VWM (9.0 V), VBR (10.0–11.1 V), and VC (15.4 V), but lower PPPM = 600 W (same rating) and higher IPPM = 39.0 A - identical electrical performance; SMBJ uses DO-214AA package (larger footprint, 4.57 mm × 3.94 mm). | SMBJ9.0CA has 20 % larger PCB area requirement and 15 % higher thermal resistance (RθJA = 110 °C/W vs. 100 °C/W), limiting high-duty-cycle use. | Select SMBG9.0CA-M3/5B when board space is constrained or MSL Level 1 reflow profile must be strictly maintained. |
| SMCJ9.0CA | Same VWM, VBR, and VC, but higher PPPM = 1500 W and IPPM = 97.0 A; uses larger SMC (DO-214AB) package (7.11 mm × 6.22 mm). | SMCJ9.0CA targets higher-energy threats (e.g., IEC 61000-4-5 Level 4), but adds 3× footprint area and requires heavier copper pour for thermal management. | Choose SMBG9.0CA-M3/5B for cost-sensitive, space-constrained designs where 600 W surge capacity suffices - avoids over-engineering. |
Compared with SMBJ9.0CA and SMCJ9.0CA, the SMBG9.0CA-M3/5B delivers identical clamping performance in the smallest surface-mount footprint among Vishay's 9.0 V bidirectional TVS family, with halogen-free construction and AEC-Q101 validation - making it optimal for automotive body electronics and compact industrial controllers where layout density and compliance are critical.
Availability
SMBG9.0CA-M3/5B is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, and telecom line protection requiring stable component supply, long-term lifecycle support, and traceable halogen-free sourcing.
Supply support for SMBG9.0CA-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 is engineered for high-reliability surface-mount transient suppression in automotive, industrial, and communications systems - prioritizing low clamping voltage, fast response, and robust package integrity under thermal and mechanical stress.
FAQ
What is the maximum clamping voltage of SMBG9.0CA-M3/5B at its rated peak pulse current?
The SMBG9.0CA-M3/5B has a maximum clamping voltage (VC) of 15.4 V when subjected to its rated peak pulse current of 39.0 A using the 10/1000 μs waveform. This value is measured per ANSI/IEEE C62.35 standards and guarantees that downstream circuitry sees no more than 15.4 V during worst-case surge events - a critical parameter for protecting 12 V-rated ICs and interfaces. The SMBG9.0CA-M3/5B maintains this clamping performance across its full operating temperature range (–55 °C to +150 °C).
Is SMBG9.0CA-M3/5B suitable for automotive applications?
Yes, the SMBG9.0CA-M3/5B is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood environments. Its 150 °C maximum junction temperature, glass-passivated junction, and halogen-free M3 construction meet stringent automotive reliability requirements. It is commonly deployed for LIN bus protection, battery monitoring inputs, and sensor interface surge suppression in ECUs and ADAS modules - all validated per the SMBG5.0A–SMBG188CA family qualification report. The SMBG9.0CA-M3/5B supports full automotive temperature cycling and humidity testing protocols.
How does the "M3" suffix in SMBG9.0CA-M3/5B affect compliance and assembly?
"M3" denotes halogen-free, RoHS-compliant construction with matte tin-plated leads that meet J-STD-002 solderability and JESD 22-B102 whisker resistance (Class 2). Unlike "E3" variants, M3 ensures zero brominated flame retardants and reduced environmental impact without sacrificing thermal or mechanical performance. During reflow, the SMBG9.0CA-M3/5B complies with MSL Level 1 (peak 260 °C) - enabling standard lead-free profiles without pre-baking. The SMBG9.0CA-M3/5B is fully compatible with automated SMT lines using standard stencil apertures and nitrogen reflow atmospheres.
What is the reverse leakage current specification for SMBG9.0CA-M3/5B at its stand-off voltage?
The SMBG9.0CA-M3/5B exhibits a maximum reverse leakage current (ID) of 1.0 μA at its 9.0 V stand-off voltage (VWM) and 25 °C ambient temperature. This ultra-low leakage ensures minimal power drain in always-on circuits such as battery-backed real-time clocks, low-power sensor nodes, and automotive wake-up receivers. Leakage remains below 5.0 μA up to +85 °C - verified per the family's electrical characteristics table - making the SMBG9.0CA-M3/5B suitable for energy-sensitive applications where standby current budgets are tight.
Can SMBG9.0CA-M3/5B be used in bidirectional AC signal paths?
Yes, the SMBG9.0CA-M3/5B is inherently bidirectional and symmetric - its electrical characteristics (VBR, VC, IPPM) apply identically in both polarities, with no cathode marking on the SMBG package. This makes it ideal for protecting AC-coupled interfaces like RS-485, CAN FD, audio lines, and transformer-isolated power supplies. Unlike unidirectional TVS diodes, the SMBG9.0CA-M3/5B eliminates assembly errors from polarity misorientation and ensures consistent clamping regardless of transient direction - a key advantage in differential and floating systems.
SMBG9.0CA-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):
- 9V
- Voltage - Breakdown (Min):
- 10V
- Voltage - Clamping (Max) @ Ipp:
- 15.4V
- Current - Peak Pulse (10/1000µs):
- 39A
- 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)
SMBG9.0CA-M3/5B FAQ
1.How can I place an order for SMBG9.0CA-M3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG9.0CA-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 SMBG9.0CA-M3/5B reliable?
The price and inventory of SMBG9.0CA-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 SMBG9.0CA-M3/5B is usually 5 days.
3.What payment methods are accepted for SMBG9.0CA-M3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG9.0CA-M3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG9.0CA-M3/5B?
SMBG9.0CA-M3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG9.0CA-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 SMBG9.0CA-M3/5B?
For technical support, including SMBG9.0CA-M3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG9.0CA-M3/5B requirements.
6.How does Aetrix verify that SMBG9.0CA-M3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG9.0CA-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 SMBG9.0CA-M3/5B meets industry standards.
7.What is the process for return or replacement of SMBG9.0CA-M3/5B?
All SMBG9.0CA-M3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG9.0CA-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 SMBG9.0CA-M3/5B part is unused and in its original packaging.
Return procedure for SMBG9.0CA-M3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG9.0CA-M3/5B Tags
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ESD9B5.0ST5G
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DESD3V3E1BL-7B
Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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Diodes Incorporated
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D12V0L1B2LP-7B
Diodes Incorporated
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Nexperia USA Inc.
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Toshiba Semiconductor and Storage
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Diodes Incorporated
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