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Vishay General Semiconductor - Diodes Division SMBG90CA-M3/52
- Part No.:
- SMBG90CA-M3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG90CA-M3/52.pdf
- Description:
- TVS DIODE 90VWM 146VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:9,550
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Product details
Overview
SMBG90CA-M3/52 from Vishay General Semiconductor is a bidirectional transient voltage suppressor (TVS) diode in SMBG (DO-215AA) package, designed for robust overvoltage protection of sensitive electronics. 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, and 600 W peak pulse power rating with 10/1000 µs waveform - deployed on automotive sensor signal lines, industrial I/O ports, and telecom interface circuits.
For engineers reviewing the SMBG90CA-M3/52 datasheet, SMBG90CA-M3/52 pinout, SMBG90CA-M3/52 application, or SMBG90CA-M3/52 equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, halogen-free RoHS compliance, thermal resistance data, and real-world protection use cases - all aligned to Vishay's official 88456 specification document (Rev. 09-Jan-2024).
Technical Context
This bidirectional TVS operates symmetrically in both polarities, enabling suppression of positive and negative transients without polarity sensitivity. Its glass-passivated junction ensures stable leakage (<1.0 µA at VWM) and fast response time (<1 ns), while the low incremental surge resistance supports consistent clamping performance under repetitive surges.
The device is rated for -55 °C to +150 °C operating junction temperature, with thermal resistance of 100 °C/W (junction-to-ambient) and 20 °C/W (junction-to-lead). It meets J-STD-020 MSL Level 1 and passes JESD201 Class 2 whisker testing - confirming suitability for high-reliability surface-mount assembly and automotive under-hood environments.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 90 V - Maximum continuous reverse operating voltage before clamping begins; defines safe operating margin for 72–90 V nominal systems. |
| VBR (min) | 100 V at 1 mA - Ensures reliable triggering above system operating voltage; guarantees suppression activation only during overvoltage events. |
| VC (max) | 146 V at IPPM = 4.1 A - Limits downstream voltage stress during 10/1000 µs surge; protects 100 V-rated ICs and MOSFETs. |
| PPPM | 600 W - Sustains standardized lightning/surge immunity per IEC 61000-4-5; validated with 0.01% duty cycle repetition. |
| IPPM | 4.1 A - Peak surge current capability under 10/1000 µs waveform; derived from VC and power rating. |
| TJ max | +150 °C - Enables operation in engine control units, power converters, and other high-temperature industrial locations. |
| Package | SMBG (DO-215AA) - Low-profile SMT footprint (6.48 × 5.97 mm) with matte tin-plated leads; compatible with automated pick-and-place and reflow. |
Pinout & Package
SMBG90CA-M3/52 uses the SMBG (DO-215AA) surface-mount package: two-terminal, symmetrical bidirectional configuration with no polarity marking. The case is molded compound rated UL 94 V-0; terminals are matte tin-plated and solderable per J-STD-002 and JESD22-B102.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode / Cathode (symmetrical) | Bidirectional surge path | Either terminal serves as anode or cathode depending on transient polarity; no band marking required. |
| Case (body) | Thermal and mechanical interface | Provides heat conduction path to PCB copper pads (0.2" × 0.2"); contributes to RθJA = 100 °C/W rating. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive applications including engine control, ADAS sensors, and infotainment interfaces - meets stress test requirements for temperature cycling, HTRB, and ESD. |
| Halogen-free & RoHS compliant (M3 suffix) | Meets IPC-1752A material declaration standards and EU RoHS Directive 2011/65/EU - suitable for green manufacturing and export compliance. |
| 600 W peak pulse power (10/1000 µs) | Delivers IEC 61000-4-5 Level 3/4 surge immunity without derating when mounted on recommended 5.0 mm × 5.0 mm copper pads. |
| Low clamping ratio (VC/VBR ≈ 1.46) | Minimizes let-through voltage during transients - critical for protecting 100 V-rated gate drivers and isolated RS-485 transceivers. |
| MSL Level 1, 260 °C peak reflow | Enables single-pass lead-free reflow assembly without moisture sensitivity concerns - eliminates bake requirements pre-assembly. |
Applications
| Automotive Sensor Protection | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting CAN/LIN bus nodes and analog sensor outputs (e.g., pressure, temperature) from load dump and ISO 7637-2 pulses in vehicle ECUs. IC Role / Device Role / Timing Role: Bidirectional clamping element placed directly at connector entry point to shunt transients before reaching MCU or signal conditioner. Use Value: Maintains signal integrity under ±100 V/50 ms load dump events while limiting voltage seen by downstream 12-bit ADCs to <146 V. |
Use Scenario: Safeguarding 24 V DC digital input modules in programmable logic controllers against field-wiring induced surges and relay coil flyback. IC Role / Device Role / Timing Role: Primary overvoltage clamp across input terminals, coordinated with series current-limiting resistor and optocoupler isolation barrier. Use Value: Prevents latch-up in input buffer ICs during 1 kV/500 A surge tests per IEC 61000-4-4, with sub-1 ns response ensuring no propagation delay. |
| Telecom Interface Protection | Power Supply Rail Clamping |
Use Scenario: Shielding RS-485/RS-422 transceiver pins in base station remote radio units exposed to lightning-induced ground potential rise. IC Role / Device Role / Timing Role: Secondary-level TVS placed adjacent to transceiver IC, complementing primary gas discharge tube (GDT) on line side. Use Value: Clamps residual transients to <146 V after GDT crowbarring, preserving transceiver ESD tolerance and preventing permanent damage. |
Use Scenario: Suppressing switching noise and inductive kickback on 90 V intermediate bus rails in telecom rectifiers and PoE injectors. IC Role / Device Role / Timing Role: Parallel-connected rail clamp referenced to local ground plane, sized to absorb 600 W short-duration energy bursts. Use Value: Prevents overvoltage shutdown of DC-DC controllers by holding rail voltage within 100–146 V window during 10 µs–1 ms disturbances. |
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-M3/52 | Same VWM/VBR/VC, but lower PPPM = 600 W limited to smaller SMB (DO-214AA) package; RθJA = 110 °C/W vs. 100 °C/W. | Less thermal margin in high-power density layouts; not qualified to AEC-Q101. | Select SMBJ90CA-M3/52 only if board space is constrained and automotive qualification is unnecessary. |
| SMAJ90CA-M3/52 | Same electrical specs but in smaller SMA (DO-214AC) package; higher RθJA = 140 °C/W; lower IPPM = 3.5 A at same VC. | Lower surge handling capacity; unsuitable for repeated 600 W events or high-temperature ambient (>105 °C). | Choose SMAJ90CA-M3/52 for cost-sensitive consumer applications where full 600 W rating and AEC-Q101 are not required. |
Compared with SMBJ90CA-M3/52 and SMAJ90CA-M3/52, SMBG90CA-M3/52 provides superior thermal performance, AEC-Q101 validation, and verified 600 W capability in the larger SMBG footprint - making it the preferred choice for automotive and industrial designs demanding long-term reliability under surge stress.
Availability
SMBG90CA-M3/52 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial PLC I/O modules, telecom RS-485 ports, and 90 V intermediate bus clamping requiring stable component supply across production lifecycles.
Supply support for SMBG90CA-M3/52 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 power MOSFETs with emphasis on reliability, efficiency, and application-specific optimization.
The SMBG series was engineered for high-energy transient suppression in space-constrained, thermally demanding environments - targeting automotive, industrial automation, and infrastructure equipment where AEC-Q101 compliance and repeatable 600 W surge handling are mandatory.
FAQ
What is the clamping voltage of SMBG90CA-M3/52 at its rated peak pulse current?
The SMBG90CA-M3/52 has a maximum clamping voltage (VC) of 146 V at its specified peak pulse current (IPPM) of 4.1 A, measured using the standard 10/1000 µs double-exponential waveform. This value is guaranteed per Vishay's datasheet 88456 and defines the upper voltage limit imposed on protected circuitry during surge events. The SMBG90CA-M3/52 maintains this clamping performance across its full operating temperature range (-55 °C to +150 °C).
Is SMBG90CA-M3/52 suitable for automotive applications?
Yes, SMBG90CA-M3/52 is AEC-Q101 qualified per Vishay's documentation, confirming its reliability for automotive use cases including engine control units, body electronics, and ADAS sensor interfaces. Its halogen-free (M3) construction, MSL Level 1 rating, and operation up to +150 °C junction temperature align with automotive environmental and manufacturing requirements. The SMBG90CA-M3/52 is explicitly listed in Vishay's AEC-Q101 qualified devices table.
How does the SMBG90CA-M3/52 differ from unidirectional variants like SMBG90A-M3/52?
The SMBG90CA-M3/52 is bidirectional, meaning it clamps voltage transients of either polarity symmetrically - ideal for AC-coupled or floating signal lines. In contrast, SMBG90A-M3/52 is unidirectional with a cathode band marking and conducts only in reverse bias. Electrical differences include identical VWM (90 V) and VBR (100 V min), but SMBG90A-M3/52 supports 100 A IFSM forward surge current, while SMBG90CA-M3/52 does not specify IFSM due to bidirectional symmetry. The SMBG90CA-M3/52 has no polarity marking.
What is the thermal resistance of SMBG90CA-M3/52, and how does it affect layout design?
SMBG90CA-M3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W and junction-to-lead resistance (RθJL) of 20 °C/W, measured on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. To achieve rated 600 W pulse power, PCB layout must provide adequate copper area and thermal vias - reducing RθJA improves sustained surge handling. The SMBG90CA-M3/52's lower RθJA versus SMBJ/SMAJ variants directly enables higher reliability in thermally dense automotive modules.
Does SMBG90CA-M3/52 require special handling or moisture sensitivity precautions before soldering?
No - SMBG90CA-M3/52 is rated MSL Level 1 per J-STD-020, meaning it has unlimited floor life and withstands peak reflow temperatures up to 260 °C without baking. Its moisture-sensitive level classification eliminates pre-bake requirements and supports standard lead-free reflow profiles. This MSL Level 1 rating is confirmed in Vishay's datasheet 88456 and applies specifically to the SMBG90CA-M3/52 variant with M3 halogen-free construction.
SMBG90CA-M3/52 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-M3/52 FAQ
1.How can I place an order for SMBG90CA-M3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG90CA-M3/52 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-M3/52 reliable?
The price and inventory of SMBG90CA-M3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG90CA-M3/52 is usually 5 days.
3.What payment methods are accepted for SMBG90CA-M3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG90CA-M3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG90CA-M3/52?
SMBG90CA-M3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG90CA-M3/52 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-M3/52?
For technical support, including SMBG90CA-M3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG90CA-M3/52 requirements.
6.How does Aetrix verify that SMBG90CA-M3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG90CA-M3/52 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-M3/52 meets industry standards.
7.What is the process for return or replacement of SMBG90CA-M3/52?
All SMBG90CA-M3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG90CA-M3/52, 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-M3/52 part is unused and in its original packaging.
Return procedure for SMBG90CA-M3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG90CA-M3/52 Tags
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