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Vishay General Semiconductor - Diodes Division SMBG9.0A-M3/52
- Part No.:
- SMBG9.0A-M3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG9.0A-M3/52.pdf
- Description:
- TVS DIODE 9VWM 15.4VC DO215AA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SMBG9.0A-M3/52 from Vishay General Semiconductor is a unidirectional surface-mount TransZORB® transient voltage suppressor (TVS) diode designed for primary overvoltage protection of DC power rails and signal lines. It features a 9.0 V stand-off voltage (VWM), 10.0–11.1 V breakdown voltage (VBR) at 1.0 mA, 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 - used in automotive sensor interfaces, industrial I/O protection, and DC-DC converter input stages.
For engineers reviewing the SMBG9.0A-M3/52 datasheet, SMBG9.0A-M3/52 pinout, SMBG9.0A-M3/52 application, or SMBG9.0A-M3/52 equivalent, key selection criteria include unidirectional polarity, DO-215AA (SMBG) package compatibility, AEC-Q101 qualification status, 150 °C max junction temperature, and low 1.0 µA reverse leakage at VWM.
Technical Context
This TVS diode operates as a clamping device that remains high-impedance below 9.0 V and rapidly transitions to low-impedance conduction above its 10.0–11.1 V breakdown threshold. Its glass-passivated junction ensures stable avalanche characteristics and long-term reliability under repetitive surge stress.
The SMBG9.0A-M3/52 delivers 600 W peak pulse power handling per 10/1000 µs waveform with 0.01 % duty cycle, and exhibits 20 °C/W typical junction-to-lead thermal resistance - enabling effective heat dissipation when mounted on 5.0 mm × 5.0 mm copper pads per terminal.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 9.0 V - Maximum continuous reverse operating voltage before significant leakage; defines safe DC rail margin for 12 V systems. |
| VBR @ IT = 1.0 mA | 10.0–11.1 V - Verified avalanche onset range; ensures predictable turn-on during transients without premature conduction. |
| VC @ IPPM = 39.0 A | 15.4 V - Clamped voltage seen by protected circuit during worst-case 600 W surge; limits downstream IC stress. |
| IPPM | 39.0 A - Peak surge current capability with 10/1000 µs waveform; supports IEC 61000-4-5 Level 4 immunity testing. |
| PPPM | 600 W - Peak pulse power rating; enables robust protection against inductive switching spikes and ESD-coupled surges. |
| TJ max | +150 °C - Maximum junction temperature; allows operation in under-hood automotive and high-ambient industrial environments. |
| Leakage @ VWM | 1.0 µA - Ultra-low reverse leakage; avoids parasitic loading on low-power sensor supply rails. |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, halogen-free, RoHS-compliant, AEC-Q101 qualified. Cathode indicated by molded band on case.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Low-side reference node | Connected to ground or low-impedance return path; completes clamping loop during positive transients. |
| Cathode | Protected line input | Connected to the line being protected (e.g., 12 V rail or signal trace); conducts surge current to ground when VIN exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, HTRB, and surge endurance - suitable for engine control, ADAS, and body electronics. |
| 600 W peak pulse power (10/1000 µs) | Withstands high-energy transients from load-dump or inductive kickback without degradation - meets ISO 7637-2 Pulse 5a requirements. |
| Low 15.4 V clamping voltage at 39 A | Minimizes voltage overshoot on protected ICs (e.g., CAN transceivers, microcontrollers), reducing risk of latch-up or gate oxide damage. |
| MSL Level 1 (260 °C peak reflow) | Compatible with standard lead-free SMT reflow profiles without moisture-induced failure - eliminates pre-bake requirement. |
| Glass-passivated junction | Ensures stable VBR tolerance and low parameter drift over time and temperature - critical for long-life industrial deployments. |
Applications
| Automotive Sensor Interface | Industrial PLC I/O Protection |
|---|---|
Use Scenario: Protecting analog sensor outputs (e.g., pressure, temperature) connected to MCU ADC inputs in engine bay or chassis modules. IC Role / Device Role / Timing Role: Unidirectional TVS placed between sensor output line and ground to clamp ESD and load-switching transients before they reach the MCU's sensitive input stage. Use Value: Limits voltage excursion to ≤15.4 V during 39 A surge, preserving ADC accuracy and preventing input-stage damage in harsh automotive environments. | Use Scenario: Safeguarding digital input channels on programmable logic controller (PLC) modules exposed to field wiring surges in factory automation. IC Role / Device Role / Timing Role: Primary front-end protection on 24 V DC input terminals, absorbing induced lightning surges and relay coil flyback energy. Use Value: Withstands 600 W pulses while maintaining <1.0 µA leakage at 24 V nominal - avoids false triggering and ensures long-term channel integrity. |
| DC-DC Converter Input Stage | Automotive Body Control Module (BCM) |
Use Scenario: Input rail protection for buck converters powering infotainment or ADAS subsystems from vehicle battery. IC Role / Device Role / Timing Role: Parallel-connected TVS on VIN pin to suppress load-dump transients up to ±35 V and prevent regulator shutdown or internal FET failure. Use Value: Clamps to 15.4 V within nanoseconds, allowing downstream regulators to remain functional during ISO 7637-2 Pulse 5a events. | Use Scenario: Overvoltage protection for LIN bus transceivers and window motor drivers in door modules subject to battery reversal and jump-start conditions. IC Role / Device Role / Timing Role: Unidirectional suppression on 12 V supply lines feeding LIN PHYs and H-bridge gate drivers. Use Value: AEC-Q101 qualification and 150 °C TJ rating ensure reliable operation across full automotive temperature range (-40 °C to +125 °C ambient). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBG9.0AHE3/52 | AEC-Q101 qualified; same electrical specs; HE3 suffix denotes RoHS-compliant, AEC-Q101 grade (vs. M3's halogen-free industrial grade). | Preferred for automotive OEM designs requiring formal AEC-Q101 certification documentation and traceability. | Select SMBG9.0AHE3/52 when full AEC-Q101 compliance reporting (test reports, PPAP) is contractually required. |
| SMBJ9.0A-M3 | Same VWM, VBR, VC, and PPPM; differs in package - SMBJ (DO-214AB) has larger footprint and higher thermal mass than SMBG (DO-215AA). | Better suited for high-reliability industrial applications where board space permits larger package and higher IFSM (100 A vs. SMBG's 100 A but with different derating). | Choose SMBJ9.0A-M3 if layout allows DO-214AB and higher surge margin is prioritized over compactness. |
Compared with SMBG9.0A-M3/52, SMBG9.0AHE3/52 offers identical performance with formal AEC-Q101 validation for automotive programs, while SMBJ9.0A-M3 trades smaller SMBG footprint for greater thermal robustness in less space-constrained designs.
Availability
SMBG9.0A-M3/52 is available at Aetrix Electronics and suitable for automotive sensor protection, industrial PLC I/O hardening, and DC-DC converter input surge suppression requiring stable component supply, halogen-free compliance, and industrial-grade reliability.
Supply support for SMBG9.0A-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, MOSFETs, and protection devices with emphasis on high-reliability, automotive-qualified, and industry-standard solutions.
The SMBG series was developed for compact, high-power transient suppression in space-constrained automotive and industrial PCBs - delivering AEC-Q101 reliability in the smallest possible DO-215AA footprint.
FAQ
What is the clamping voltage of SMBG9.0A-M3/52 at its rated peak pulse current?
The SMBG9.0A-M3/52 has a maximum clamping voltage (VC) of 15.4 V at 39.0 A peak pulse current (IPPM) with a 10/1000 µs waveform. This value is guaranteed per Vishay's datasheet revision 09-Jan-2024 and reflects worst-case conduction behavior under standardized surge conditions - critical for ensuring downstream ICs remain within absolute maximum ratings during transient events.
Is SMBG9.0A-M3/52 qualified for automotive applications?
Yes, SMBG9.0A-M3/52 is halogen-free, RoHS-compliant, and AEC-Q101 qualified per Vishay's official documentation. The "M3" suffix confirms industrial-grade halogen-free construction, and the device meets all stress tests defined in AEC-Q101, including temperature cycling, high-temperature reverse bias, and surge endurance - making it suitable for under-hood and body electronics applications.
What does the "/52" in SMBG9.0A-M3/52 indicate?
The "/52" in SMBG9.0A-M3/52 specifies the packaging configuration: 7-inch diameter plastic tape and reel, with a base quantity of 750 units per reel. This format is optimized for automated SMT placement and aligns with standard J-STD-033 moisture sensitivity handling for MSL Level 1 devices.
How does SMBG9.0A-M3/52 differ from bidirectional variants like SMBG9.0CA?
SMBG9.0A-M3/52 is unidirectional, with cathode marked by a band and intended for DC line protection where polarity is fixed. In contrast, SMBG9.0CA is bidirectional, lacks polarity marking, and provides symmetrical clamping for AC or floating signal lines. Their VBR and VC values differ accordingly - SMBG9.0A-M3/52 breaks down only in reverse bias, while SMBG9.0CA clamps in both directions.
What is the maximum operating temperature for SMBG9.0A-M3/52?
The SMBG9.0A-M3/52 has a maximum junction temperature (TJ) of +150 °C and an operating junction/storage temperature range of -55 °C to +150 °C. This rating enables deployment in high-ambient environments such as automotive engine compartments or industrial control cabinets without thermal derating penalties under proper PCB layout (e.g., 5.0 mm × 5.0 mm copper pads).
SMBG9.0A-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:
- 1
- Bidirectional Channels:
- -
- 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)
SMBG9.0A-M3/52 FAQ
1.How can I place an order for SMBG9.0A-M3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG9.0A-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 SMBG9.0A-M3/52 reliable?
The price and inventory of SMBG9.0A-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 SMBG9.0A-M3/52 is usually 5 days.
3.What payment methods are accepted for SMBG9.0A-M3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG9.0A-M3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG9.0A-M3/52?
SMBG9.0A-M3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG9.0A-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 SMBG9.0A-M3/52?
For technical support, including SMBG9.0A-M3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG9.0A-M3/52 requirements.
6.How does Aetrix verify that SMBG9.0A-M3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG9.0A-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 SMBG9.0A-M3/52 meets industry standards.
7.What is the process for return or replacement of SMBG9.0A-M3/52?
All SMBG9.0A-M3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG9.0A-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 SMBG9.0A-M3/52 part is unused and in its original packaging.
Return procedure for SMBG9.0A-M3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG9.0A-M3/52 Tags
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