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Vishay General Semiconductor - Diodes Division SMBG90CA-M3/5B
- Part No.:
- SMBG90CA-M3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG90CA-M3/5B.pdf
- Description:
- TVS DIODE 90VWM 146VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:5,317
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Product details
Overview
SMBG90CA-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 90 V stand-off voltage (VWM), 100 V minimum breakdown voltage (VBR), 146 V maximum clamping voltage (VC) at 4.1 A peak pulse current, 600 W peak pulse power rating (10/1000 μs), and AEC-Q101 qualification for automotive use.
For engineers reviewing the SMBG90CA-M3/5B datasheet, SMBG90CA-M3/5B pinout, SMBG90CA-M3/5B application, or SMBG90CA-M3/5B equivalent, key selection criteria include bidirectional clamping symmetry, low leakage (<1.0 μA at 90 V), MSL Level 1 moisture sensitivity, halogen-free RoHS compliance, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This bidirectional TVS operates symmetrically in both polarities, with identical VBR (100–111 V), VC (146 V), and IPPM (4.1 A) specifications for positive and negative transients. Its glass-passivated junction ensures stable avalanche characteristics and fast response time (<1 ns), while the low incremental surge resistance supports effective energy diversion during ESD or lightning-induced surges.
The device is rated for TJ = –55 °C to +150 °C operation, exhibits RθJA = 100 °C/W (typ.) and RθJL = 20 °C/W (typ.), and meets UL 497B recognition (QVGQ2) for protector classification - enabling deployment in safety-critical automotive and industrial interfaces without derating at board-level thermal conditions.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 90 V - Maximum continuous reverse operating voltage before clamping begins; defines safe working margin for 72–90 V nominal systems. |
| VBR (min/max) | 100 V / 111 V - Breakdown occurs within this range at 1 mA test current; ensures predictable turn-on across temperature and lot variation. |
| VC @ IPPM | 146 V - Clamped voltage at 4.1 A peak pulse (10/1000 μs); limits downstream IC stress during 600 W transient events. |
| IPPM | 4.1 A - Peak pulse current capability under standard waveform; determines survivability against defined surge threats. |
| ID @ VWM | <1.0 μA - Reverse leakage at 90 V; minimizes standby power loss and avoids false triggering in high-impedance circuits. |
| TJ max. | +150 °C - Maximum junction temperature; enables reliable operation in under-hood automotive or enclosed industrial enclosures. |
| Package | SMBG (DO-215AA) - Surface-mount outline with 0.235–0.255" body length; optimized for automated placement and thermal pad layout per Vishay-recommended 5.0 mm × 5.0 mm copper areas. |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, bidirectional configuration with no polarity marking. Terminals are matte tin-plated leads, solderable per J-STD-002 and JESD 22-B102, and meet JESD 201 Class 2 whisker resistance.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (negative polarity) | Accepts surge current during negative-going transients; forms symmetrical clamping path with cathode. |
| Cathode | Transient current entry (positive polarity) | Accepts surge current during positive-going transients; paired with anode to enable bidirectional protection. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping | Identical VBR, VC, and IPPM in both directions - eliminates need for polarity-aware layout in AC-coupled or floating signal lines. |
| AEC-Q101 qualification | Validated for automotive-grade reliability including temperature cycling, HTRB, and ESD - suitable for CAN, LIN, sensor, and infotainment subsystems. |
| Halogen-free & RoHS compliant (M3 suffix) | Meets IEC 61249-2-21 and JEDEC J-STD-20 requirements - supports green manufacturing and end-of-life compliance without performance trade-offs. |
| MSL Level 1 rating | Unlimited floor life at ≤30 °C/85 % RH - allows direct placement from reel without baking, reducing production overhead. |
| UL 497B recognition (QVGQ2) | Third-party certified for telecom and industrial protector applications - simplifies system-level safety certification efforts. |
Applications
| Automotive Sensor Protection | Industrial RS-485 Interface |
|---|---|
Use Scenario: Protecting analog output lines of pressure/temperature sensors in engine control modules exposed to load dump and ISO 7637-2 pulses. IC Role / Device Role: Bidirectional voltage clamp placed across differential signal pair upstream of ADC input. Use Value: Limits transient excursions to ≤146 V while maintaining <1.0 μA leakage at 90 V rail, preserving sensor accuracy and preventing ADC saturation. | Use Scenario: Safeguarding RS-485 transceivers in factory automation PLCs subjected to EFT bursts and ground potential differences. IC Role / Device Role: Common-mode TVS connected between A/B lines and ground, leveraging symmetrical clamping to suppress ±1 kV EFT. Use Value: Delivers 600 W pulse handling with <1 ns response, ensuring data integrity during 10/1000 μs surges without latch-up or degradation. |
| Consumer USB-C Port Protection | Telecom DSL Line Interface |
Use Scenario: Shielding USB-C CC and VCONN lines from ESD events per IEC 61000-4-2 ±15 kV contact discharge. IC Role / Device Role: Low-capacitance bidirectional TVS placed directly at connector, minimizing trace inductance. Use Value: Clamps ESD strikes to ≤146 V within nanoseconds, with no polarity marking required - simplifying layout and reducing BOM count. | Use Scenario: Protecting ADSL/VDSL line drivers and receivers from lightning-induced surges on twisted-pair telephone lines. IC Role / Device Role: Primary protection device bridging tip/ring to ground in line interface circuitry. Use Value: Withstands repetitive 600 W surges (0.01 % duty cycle) and maintains stable VBR across –55 °C to +150 °C, ensuring field longevity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBJ90CA | Same VWM/VBR/VC specs but in SMB (DO-214AA) package; 10 % larger footprint and higher RθJA (120 °C/W). | Less suitable for space-constrained automotive modules; requires revised pad layout and thermal validation. | Select SMBJ90CA only if legacy SMB footprint compatibility is mandatory and thermal margin permits. |
| SMCJ90CA | Higher PPPM (1500 W), same VWM/VBR, but in larger SMC (DO-214AB) package; 3× PCB area and 2× weight. | Over-specified for 600 W threat models; adds cost and layout complexity where not needed. | Choose SMCJ90CA only when system-level testing confirms need for >600 W surge immunity. |
Compared with SMBJ90CA and SMCJ90CA, SMBG90CA-M3/5B delivers optimal balance of 600 W surge capability, compact SMBG footprint, AEC-Q101 qualification, and halogen-free compliance - making it the preferred choice for new automotive and industrial designs targeting IPC Class 3 reliability and zero-bake assembly.
Availability
SMBG90CA-M3/5B is available at Aetrix Electronics and suitable for automotive sensor modules, industrial RS-485 networks, consumer USB-C ports, and telecom DSL line interfaces requiring stable component supply, long-term lifecycle support, and consistent halogen-free material compliance.
Supply support for SMBG90CA-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 engineered for high-reliability surface-mount transient suppression in automotive and industrial environments, prioritizing AEC-Q101 qualification, low-profile packaging, and precise bidirectional clamping performance.
FAQ
What is the clamping voltage of SMBG90CA-M3/5B under a 10/1000 μs surge?
The SMBG90CA-M3/5B has a maximum clamping voltage (VC) of 146 V at 4.1 A peak pulse current (IPPM) under the standardized 10/1000 μs waveform. This value is measured with the device mounted on 5.0 mm × 5.0 mm copper pads per Vishay's recommended layout, ensuring repeatable thermal and electrical performance for design validation.
Is SMBG90CA-M3/5B suitable for automotive applications?
Yes, SMBG90CA-M3/5B is AEC-Q101 qualified and UL 497B recognized (QVGQ2), making it suitable for automotive applications including engine control units, ADAS sensor interfaces, and infotainment systems. Its –55 °C to +150 °C operating range, MSL Level 1 rating, and halogen-free construction align with stringent automotive manufacturing and reliability requirements.
Does SMBG90CA-M3/5B have polarity markings?
No, SMBG90CA-M3/5B is a bidirectional TVS diode and carries no polarity marking on the package. Unlike unidirectional variants (e.g., SMBG90A), it functions identically in both directions, eliminating orientation concerns during automated placement and simplifying PCB layout for AC-coupled or floating signal paths.
What is the maximum reverse leakage current for SMBG90CA-M3/5B at its stand-off voltage?
The SMBG90CA-M3/5B exhibits a maximum reverse leakage current (ID) of 1.0 μA at its 90 V stand-off voltage (VWM), measured at 25 °C. This low leakage preserves signal integrity in high-impedance sensor and communication circuits and avoids unnecessary power drain in battery-operated systems.
How does the SMBG (DO-215AA) package differ from SMB (DO-214AA) in thermal performance?
The SMBG (DO-215AA) package used by SMBG90CA-M3/5B offers lower thermal resistance than SMB (DO-214AA): RθJA = 100 °C/W (typ.) versus ~120 °C/W for SMB. This improvement stems from optimized leadframe geometry and enhanced thermal pad coupling, allowing SMBG90CA-M3/5B to sustain 600 W pulses with less junction temperature rise under identical PCB layout conditions.
SMBG90CA-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):
- 90V
- Voltage - Breakdown (Min):
- 100V
- Voltage - Clamping (Max) @ Ipp:
- 146V
- Current - Peak Pulse (10/1000µs):
- 4.1A
- 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)
SMBG90CA-M3/5B FAQ
1.How can I place an order for SMBG90CA-M3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG90CA-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 SMBG90CA-M3/5B reliable?
The price and inventory of SMBG90CA-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 SMBG90CA-M3/5B is usually 5 days.
3.What payment methods are accepted for SMBG90CA-M3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG90CA-M3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG90CA-M3/5B?
SMBG90CA-M3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG90CA-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 SMBG90CA-M3/5B?
For technical support, including SMBG90CA-M3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG90CA-M3/5B requirements.
6.How does Aetrix verify that SMBG90CA-M3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG90CA-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 SMBG90CA-M3/5B meets industry standards.
7.What is the process for return or replacement of SMBG90CA-M3/5B?
All SMBG90CA-M3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG90CA-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 SMBG90CA-M3/5B part is unused and in its original packaging.
Return procedure for SMBG90CA-M3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG90CA-M3/5B Tags
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