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Vishay General Semiconductor - Diodes Division SMBG90CA-E3/5B
- Part No.:
- SMBG90CA-E3/5B
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG90CA-E3/5B.pdf
- Description:
- TVS DIODE 90VWM 146VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:7,652
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Product details
Overview
SMBG90CA-E3/5B 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-grade reliability.
For engineers reviewing the SMBG90CA-E3/5B datasheet, SMBG90CA-E3/5B pinout, SMBG90CA-E3/5B application, or SMBG90CA-E3/5B equivalent, key selection criteria include bidirectional surge clamping performance, junction temperature derating above 25 °C, compliance with UL 497B and IEC 61000-4-5, and compatibility with automated SMT placement on 5.0 mm × 5.0 mm copper pads.
Technical Context
This bidirectional TVS operates symmetrically across both polarities, delivering identical clamping behavior during positive and negative transients-critical for protecting AC-coupled or differential interfaces. Its glass-passivated junction ensures stable leakage (<1.0 μA at VWM) and low incremental surge resistance, enabling fast response (<1 ns) to ESD and lightning-induced surges.
The device is rated for 150 °C maximum junction temperature and exhibits 100 °C/W typical thermal resistance (junction-to-ambient) when mounted per recommended pad layout. Its MSL Level 1 rating (JEDEC J-STD-020) and matte tin-plated leads support lead-free reflow up to 260 °C peak without degradation.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 90 V - Maximum continuous reverse operating voltage before clamping initiates; defines safe working range for protected circuitry. |
| VBR (min) | 100 V at 1 mA - Guaranteed minimum breakdown threshold; ensures reliable triggering above system operating voltage. |
| VC (max) | 146 V at IPPM = 4.1 A - Peak clamped voltage under 10/1000 μs surge; determines worst-case stress on downstream components. |
| PPPM | 600 W - Peak pulse power handling capability; supports repetitive 0.01% duty cycle surges without thermal runaway. |
| IPPM | 4.1 A - Corresponding peak pulse current at VC; used with PCB trace impedance to estimate let-through energy. |
| TJ max | 150 °C - Maximum allowable junction temperature; sets thermal design margin for high-ambient or high-duty-cycle applications. |
| AEC-Q101 | Qualified - Validated for automotive electronics per stress test requirements including HTOL, TC, and ESD; enables use in ADAS and infotainment systems. |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, bidirectional configuration with no polarity marking. Dimensions: 6.48 mm × 3.94 mm × 2.16 mm (L × W × H); molded compound meets UL 94 V-0.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Transient current entry (negative half-cycle) | One terminal of symmetrical junction; conducts during negative surges to clamp voltage relative to reference plane. |
| Cathode | Transient current entry (positive half-cycle) | Second terminal of symmetrical junction; conducts during positive surges to clamp voltage relative to reference plane. |
Key Features
| Feature | Design Value |
|---|---|
| Bidirectional clamping symmetry | Identical VBR, VC, and IPPM in both directions-enables single-device protection of AC lines, RS-485, CAN, or USB D+/D− pairs without polarity concerns. |
| 600 W peak pulse power | Handles IEC 61000-4-5 Level 4 surges (4 kV line-earth, 2 kV line-line) with margin when properly heatsinked on 5 mm × 5 mm copper pads. |
| Glass-passivated junction | Ensures stable leakage current (<1.0 μA at 90 V) and long-term reliability under thermal cycling and humidity exposure. |
| MSL Level 1 / 260 °C peak reflow | Supports standard lead-free SMT assembly without pre-baking; compatible with high-volume automated placement and reflow profiles. |
| AEC-Q101 qualification | Validated for automotive under-hood and cabin applications requiring extended temperature operation and mechanical robustness. |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed ECUs (e.g., body control modules) against load dump and alternator transients. IC Role / Device Role / Timing Role: Primary clamping element placed between power rail and ground, absorbing >95% of surge energy before it reaches LDOs or microcontrollers. Use Value: Limits peak rail voltage to ≤146 V during 100 V/350 ms load dump events, preventing latch-up or gate oxide damage in downstream ICs. | Use Scenario: Shielding analog sensor outputs (e.g., pressure, temperature) in PLC I/O modules from field-wiring induced surges. IC Role / Device Role / Timing Role: Low-capacitance shunt protector on differential or single-ended signal lines, placed adjacent to connector entry point. Use Value: Clamps fast-rising transients (<1 ns response) while maintaining <1.0 μA leakage at 90 V, preserving signal integrity and ADC accuracy. |
| Telecom Data Line Surge Suppression | Consumer Device USB Port Protection |
Use Scenario: Safeguarding Ethernet PHY or xDSL line drivers exposed to lightning-induced surges on outdoor cabling. IC Role / Device Role / Timing Role: Bidirectional front-end protector on transformer-coupled data lines, coordinated with common-mode chokes. Use Value: Symmetric clamping ensures equal protection for both line polarities, meeting GR-1089-CORE Level 3 (2 kV ring wave) requirements. | Use Scenario: Adding secondary-level surge immunity to USB 2.0 Type-A ports in smart home hubs and set-top boxes. IC Role / Device Role / Timing Role: Secondary TVS after primary polymer PTC, placed directly at port connector to suppress ESD and cable discharge events. Use Value: Withstands ±15 kV contact ESD (IEC 61000-4-2) and limits clamped voltage to <146 V, preventing damage to USB transceivers and USB-C CC logic. |
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-E3/5B | Same VWM (90 V), but lower PPPM (600 W vs. SMBJ's 600 W), identical SMB package; differs in thermal resistance (RθJA = 100 °C/W same), but SMBJ series uses DO-214AA case with slightly larger pad area. | SMBJ90CA has marginally higher IPPM (4.3 A vs. 4.1 A) due to different junction geometry; not drop-in due to DO-214AA vs. DO-215AA footprint mismatch. | Select SMBJ90CA-E3/5B only if redesigning PCB for DO-214AA layout; verify pad thermal relief matches Vishay's SMBJ recommended footprint. |
| SMCJ90CA-E3/5B | Same VWM and bidirectional function, but higher PPPM (1500 W), larger SMC (DO-214AB) package, and higher VC (156 V); RθJA = 35 °C/W improves thermal performance. | Used where higher surge energy absorption is required (e.g., industrial motor drives), but requires larger board area and different mounting. | Choose SMCJ90CA-E3/5B when system-level testing reveals insufficient margin with 600 W rating; confirm mechanical clearance for 7.11 mm × 6.22 mm SMC outline. |
Compared with SMBG90CA-E3/5B, SMBJ90CA-E3/5B offers identical electrical specs but incompatible packaging, while SMCJ90CA-E3/5B delivers triple the surge power at the cost of size and layout change-making SMBG90CA-E3/5B optimal for space-constrained automotive and telecom modules needing AEC-Q101 compliance and DO-215AA footprint.
Availability
SMBG90CA-E3/5B is available at Aetrix Electronics and suitable for automotive ECU protection, industrial sensor interface hardening, and telecom line surge suppression requiring stable component supply, AEC-Q101 qualification, and RoHS-compliant manufacturing.
Supply support for SMBG90CA-E3/5B 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 specifically for high-reliability surface-mount transient suppression in automotive, industrial, and communications infrastructure-prioritizing AEC-Q101 compliance, low-profile packaging, and repeatable clamping performance under thermal stress.
FAQ
What is the maximum clamping voltage of SMBG90CA-E3/5B under a 10/1000 μs surge?
The SMBG90CA-E3/5B has a maximum clamping voltage (VC) of 146 V when subjected to its rated peak pulse current of 4.1 A using the standardized 10/1000 μs waveform. This value is guaranteed across the full operating temperature range and is critical for determining whether downstream components remain within their absolute maximum voltage ratings during surge events.
Is SMBG90CA-E3/5B suitable for automotive applications?
Yes, SMBG90CA-E3/5B is AEC-Q101 qualified and explicitly rated for automotive use. Its construction-including glass-passivated junction, MSL Level 1 moisture sensitivity, and operation from −55 °C to +150 °C-meets stringent requirements for engine control units, infotainment systems, and ADAS sensors exposed to harsh thermal and vibration environments.
Does SMBG90CA-E3/5B have polarity markings on the package?
No, SMBG90CA-E3/5B is a bidirectional TVS diode and carries no polarity marking on the SMBG (DO-215AA) package. Unlike unidirectional variants, it functions identically regardless of orientation, simplifying PCB layout and eliminating risk of incorrect placement during automated assembly.
What is the reverse leakage current specification for SMBG90CA-E3/5B at its stand-off voltage?
At its rated stand-off voltage (VWM) of 90 V and ambient temperature of 25 °C, SMBG90CA-E3/5B exhibits a maximum reverse leakage current (ID) of 1.0 μA. This low leakage preserves signal integrity in high-impedance sensor interfaces and minimizes standby power loss in always-on automotive modules.
How does the SMBG90CA-E3/5B package differ from the SMBJ series in terms of board layout?
SMBG90CA-E3/5B uses the DO-215AA (SMBG) package, which measures 6.48 mm × 3.94 mm, whereas the SMBJ series uses DO-214AA (SMB) with dimensions 4.57 mm × 3.94 mm. The SMBG variant has longer leads and different pad geometry-requiring dedicated footprint design and making it non-interchangeable with SMBJ without PCB revision.
SMBG90CA-E3/5B 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:
- -55°C ~ 150°C (TJ)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBG)
SMBG90CA-E3/5B FAQ
1.How can I place an order for SMBG90CA-E3/5B through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG90CA-E3/5B 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-E3/5B reliable?
The price and inventory of SMBG90CA-E3/5B are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG90CA-E3/5B is usually 5 days.
3.What payment methods are accepted for SMBG90CA-E3/5B?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG90CA-E3/5B transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG90CA-E3/5B?
SMBG90CA-E3/5B orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG90CA-E3/5B 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-E3/5B?
For technical support, including SMBG90CA-E3/5B datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG90CA-E3/5B requirements.
6.How does Aetrix verify that SMBG90CA-E3/5B is sourced from the original manufacturer or authorized distributors?
All SMBG90CA-E3/5B 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-E3/5B meets industry standards.
7.What is the process for return or replacement of SMBG90CA-E3/5B?
All SMBG90CA-E3/5B units undergo pre-shipment inspection (PSI). If there is an issue with SMBG90CA-E3/5B, 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-E3/5B part is unused and in its original packaging.
Return procedure for SMBG90CA-E3/5B:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG90CA-E3/5B Tags
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