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Vishay General Semiconductor - Diodes Division SMBG16CA-M3/52
- Part No.:
- SMBG16CA-M3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG16CA-M3/52.pdf
- Description:
- TVS DIODE 16VWM 26VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:2,120
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Product details
Overview
SMBG16CA-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 16 V stand-off voltage (VWM), 17.8–19.7 V breakdown voltage (VBR) at 1 mA, 600 W peak pulse power (10/1000 μs), clamping voltage of 26.0 V at 23.1 A, and AEC-Q101 qualification for automotive-grade reliability.
For engineers reviewing the SMBG16CA-M3/52 datasheet, SMBG16CA-M3/52 pinout, SMBG16CA-M3/52 application, or SMBG16CA-M3/52 equivalent, key selection criteria include bidirectional surge suppression capability, low clamping ratio (VC/VBR ≈ 1.4), halogen-free RoHS compliance (M3 suffix), and compatibility with automated SMT assembly on industrial and automotive PCBs.
Technical Context
This TVS diode operates symmetrically in both polarities, enabling protection of AC-coupled or differential signal lines without polarity constraints. Its glass-passivated junction ensures stable leakage performance (<1.0 μA at VWM) and fast response time (<1.0 ns), critical for suppressing ESD and lightning-induced transients.
The device is rated for -55 °C to +150 °C operating junction temperature, with thermal resistance RθJA = 100 °C/W (on 5.0 mm × 5.0 mm copper pads), supporting reliable operation in under-hood automotive environments and high-temperature industrial enclosures.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - Maximum continuous reverse working voltage before clamping begins; defines safe operating margin for 12 V nominal systems. |
| VBR (min/max) | 17.8 V / 19.7 V at 1 mA - Confirmed breakdown threshold range; ensures predictable turn-on during transients. |
| VC @ IPPM | 26.0 V at 23.1 A - Clamping voltage under 600 W 10/1000 μs surge; limits downstream IC stress to safe levels. |
| PPPM | 600 W - Peak pulse power handling per JEDEC standard; supports IEC 61000-4-5 Level 4 (4 kV) surge immunity. |
| ID @ VWM | <1.0 μA - Ultra-low reverse leakage at stand-off voltage; prevents signal distortion or battery drain in always-on circuits. |
| TJ max | +150 °C - Maximum junction temperature rating; enables use in engine control units and powertrain modules. |
| Qualification | AEC-Q101 qualified - Validated for automotive electronic systems per stress test requirements including HTOL, TCT, and ESD. |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, halogen-free, RoHS-compliant, matte tin-plated leads. Molding compound meets UL 94 V-0. No polarity marking - bidirectional symmetry confirmed per datasheet.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode/Cathode (symmetrical) | Bidirectional surge path | Either terminal serves as anode or cathode depending on transient polarity; no orientation required during placement. |
| Case (body) | Thermal and mechanical interface | Exposed metal slug provides primary heat dissipation path to PCB copper; requires minimum 5.0 mm × 5.0 mm pad per terminal. |
Key Features
| Feature | Design Value |
|---|---|
| 600 W peak pulse power (10/1000 μs) | Enables single-device protection against IEC 61000-4-5 surges up to 4 kV in 2 Ω/12 Ω source impedance configurations. |
| AEC-Q101 qualification | Validates reliability for automotive applications including ADAS camera links, infotainment USB ports, and CAN FD bus nodes. |
| Low clamping voltage (26.0 V) | Provides 39 % clamping ratio (VC/VBR-min), minimizing voltage overshoot across protected ICs like microcontrollers and transceivers. |
| Halogen-free, RoHS-compliant (M3 suffix) | Meets EU Directive 2011/65/EU and JESD201 Class 2 whisker resistance; suitable for green manufacturing and export compliance. |
| MSL Level 1 (260 °C peak reflow) | Supports lead-free soldering without moisture sensitivity concerns; eliminates bake requirement prior to assembly. |
Applications
| Automotive Sensor Protection | Industrial Ethernet Port |
|---|---|
Use Scenario: Protecting LIN bus sensors (e.g., temperature, pressure) from load dump and alternator ripple in vehicle chassis networks. IC Role / Device Role / Timing Role: Bidirectional TVS placed across signal line and ground to clamp ±200 V transients while preserving DC bias integrity. Use Value: Prevents latch-up or gate oxide damage in sensor interface ICs by limiting transient voltage to ≤26.0 V during 10/1000 μs surges. | Use Scenario: Safeguarding RJ45 PHY interfaces in factory automation switches exposed to EFT and surge events on unshielded twisted-pair cabling. IC Role / Device Role / Timing Role: Common-mode TVS across differential pairs (e.g., TX+/TX−) to suppress asymmetric noise without distorting signal timing. Use Value: Maintains <1 pF junction capacitance at 0 V bias, ensuring minimal impact on 100BASE-TX signal integrity up to 125 MHz. |
| USB 2.0 Data Line Protection | DC Power Rail Clamp |
Use Scenario: Guarding USB 2.0 D+ and D− lines in automotive infotainment head units against ESD (±15 kV contact) and cable discharge events. IC Role / Device Role / Timing Role: Bidirectional TVS connected between each data line and ground, leveraging symmetry to handle both positive and negative ESD pulses. Use Value: Sub-1 ns response time ensures clamping initiates before ESD pulse edge reaches connected USB transceiver, preventing bit errors or reset events. | Use Scenario: Clamping 24 V DC power inputs in programmable logic controllers subjected to inductive switching spikes from solenoid drivers. IC Role / Device Role / Timing Role: Parallel-connected TVS across input rail and ground, absorbing repetitive 600 W surges without degradation over >10,000 cycles. Use Value: Withstands 100 A non-repetitive forward surge (IFSM) and maintains VWM = 16 V margin above nominal 24 V supply, avoiding false triggering. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBG16CA-E3/52 | Same electrical specs; RoHS-compliant but not halogen-free (E3 vs. M3). | Acceptable for industrial use where halogen-free mandate does not apply; not certified for automotive AEC-Q101. | Select SMBG16CA-E3/52 only when halogen content and automotive qualification are not required. |
| SMBJ16CA-M3 | Higher PPPM = 600 W (same), but larger SMB (DO-214AA) package; VC = 26.0 V identical, but RθJA = 85 °C/W (better thermal performance). | Preferred for high-power or thermally constrained layouts; incompatible footprint due to wider body (4.58 mm vs. 3.94 mm width). | Choose SMBJ16CA-M3 if board space allows and thermal derating below 100 °C/W is needed. |
Compared with SMBG16CA-E3/52, the SMBG16CA-M3/52 adds halogen-free compliance and AEC-Q101 qualification-critical for automotive Tier-1 suppliers-while SMBJ16CA-M3 offers superior thermal resistance but requires PCB layout revision due to DO-214AA footprint mismatch.
Availability
SMBG16CA-M3/52 is available at Aetrix Electronics and suitable for automotive sensor interfaces, industrial Ethernet ports, USB 2.0 data lines, and 24 V DC power rail protection requiring stable component supply and long-term lifecycle support.
Supply support for SMBG16CA-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 reliability, efficiency, and application-specific optimization.
The SMBG series was engineered for high-density surface-mount transient suppression in automotive and industrial systems, prioritizing low profile, AEC-Q101 compliance, and consistent clamping performance across temperature and lifetime.
FAQ
What is the clamping voltage of SMBG16CA-M3/52 and how is it measured?
The SMBG16CA-M3/52 has a maximum clamping voltage (VC) of 26.0 V at 23.1 A peak pulse current (IPPM), tested with a standardized 10/1000 μs double-exponential waveform. This value is measured across the device terminals under surge conditions and reflects the upper limit of voltage imposed on protected circuitry during transient events. The SMBG16CA-M3/52 achieves this clamping performance while maintaining low incremental surge resistance, ensuring predictable protection behavior in real-world applications.
Is SMBG16CA-M3/52 suitable for automotive applications?
Yes, SMBG16CA-M3/52 is AEC-Q101 qualified and explicitly rated for automotive use, including under-hood environments with operating junction temperatures up to +150 °C. Its halogen-free (M3) construction, MSL Level 1 reflow compatibility, and bidirectional symmetry make it appropriate for protecting CAN FD nodes, LIN sensors, and infotainment USB ports. The SMBG16CA-M3/52 meets automotive reliability standards without requiring additional qualification testing by the end user.
How does the SMBG16CA-M3/52 differ from unidirectional variants like SMBG16A-M3/52?
The SMBG16CA-M3/52 is bidirectional, meaning it clamps voltage transients of either polarity symmetrically across its terminals, whereas SMBG16A-M3/52 is unidirectional and requires correct cathode/anode orientation. The "CA" suffix denotes bidirectional functionality, with identical VWM (16 V), VBR, and PPPM ratings-but SMBG16A-M3/52 includes a cathode band marking and supports 100 A IFSM forward surge, which does not apply to the SMBG16CA-M3/52. The SMBG16CA-M3/52 is preferred for AC-coupled or differential signal protection where polarity is undefined.
What is the thermal resistance of SMBG16CA-M3/52 and how does it affect layout design?
The SMBG16CA-M3/52 has a typical junction-to-ambient thermal resistance (RθJA) of 100 °C/W when mounted on 0.2" × 0.2" (5.0 mm × 5.0 mm) copper pads per terminal. This value assumes minimum recommended pad layout per Vishay's package drawing. To maintain safe junction temperature under repeated surges, PCB layout must allocate adequate copper area and consider thermal vias beneath the device body. The SMBG16CA-M3/52's thermal performance directly impacts maximum allowable surge repetition rate and long-term reliability in high-temperature ambient conditions.
Does SMBG16CA-M3/52 require orientation during PCB placement?
No, SMBG16CA-M3/52 does not require orientation during placement because it is a bidirectional TVS diode with symmetrical electrical characteristics in both directions. Unlike unidirectional variants (e.g., SMBG16A-M3/52), the SMBG16CA-M3/52 has no cathode marking and functions identically regardless of terminal connection order. This simplifies automated assembly and eliminates risk of misplacement-related field failures-making the SMBG16CA-M3/52 ideal for differential signal lines and AC-coupled interfaces where polarity is undefined.
SMBG16CA-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):
- 16V
- Voltage - Breakdown (Min):
- 17.8V
- Voltage - Clamping (Max) @ Ipp:
- 26V
- Current - Peak Pulse (10/1000µs):
- 23.1A
- 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)
SMBG16CA-M3/52 FAQ
1.How can I place an order for SMBG16CA-M3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG16CA-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 SMBG16CA-M3/52 reliable?
The price and inventory of SMBG16CA-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 SMBG16CA-M3/52 is usually 5 days.
3.What payment methods are accepted for SMBG16CA-M3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG16CA-M3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG16CA-M3/52?
SMBG16CA-M3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG16CA-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 SMBG16CA-M3/52?
For technical support, including SMBG16CA-M3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG16CA-M3/52 requirements.
6.How does Aetrix verify that SMBG16CA-M3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG16CA-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 SMBG16CA-M3/52 meets industry standards.
7.What is the process for return or replacement of SMBG16CA-M3/52?
All SMBG16CA-M3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG16CA-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 SMBG16CA-M3/52 part is unused and in its original packaging.
Return procedure for SMBG16CA-M3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG16CA-M3/52 Tags
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