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Vishay General Semiconductor - Diodes Division SMBG16A-M3/52
- Part No.:
- SMBG16A-M3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG16A-M3/52.pdf
- Description:
- TVS DIODE 16VWM 26VC DO215AA
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
SMBG16A-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 16 V stand-off voltage (VWM), 17.8–19.7 V breakdown voltage (VBR) at 1 mA, 26.0 V maximum clamping voltage (VC) at 23.1 A peak pulse current, and 600 W peak pulse power rating with 10/1000 μs waveform - suitable for automotive power supply input protection against load dump and ISO 7637-2 transients.
For engineers reviewing the SMBG16A-M3/52 datasheet, SMBG16A-M3/52 pinout, SMBG16A-M3/52 application, or SMBG16A-M3/52 equivalent, this device is evaluated for robust ESD and surge immunity in AEC-Q101-qualified industrial and automotive systems where low-leakage (<1.0 μA at VWM), fast response (<1 ns), and stable clamping under repetitive surges are required.
Technical Context
This unidirectional TVS operates as a voltage-clamped shunt protector: when reverse voltage exceeds VBR, it avalanches into low-impedance conduction to divert surge energy away from downstream circuitry. Its glass-passivated junction ensures stable leakage and long-term reliability under thermal cycling.
The SMBG16A-M3/52 is rated for 100 A non-repetitive forward surge current (IFSM, 8.3 ms half-sine), junction temperature range of –55 °C to +150 °C, and meets MSL Level 1 per J-STD-020 with 260 °C reflow peak - confirming suitability for high-volume automated SMT assembly without moisture sensitivity concerns.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC rail margin for 12 V automotive systems. |
| VBR (min/max) | 17.8 V / 19.7 V at IT = 1 mA - Tight breakdown tolerance ensures predictable turn-on across production lots and temperature. |
| VC @ IPPM | 26.0 V at 23.1 A - Clamping voltage limits protected IC stress during 600 W transient events; enables robust 12 V system design. |
| ID @ VWM | <1.0 μA - Ultra-low leakage preserves battery life in always-on automotive modules and avoids false triggering. |
| PPPM | 600 W (10/1000 μs) - Rated surge handling capacity for common ISO 7637-2 Pulse 1, 2a, and 5a waveforms. |
| TJ max | +150 °C - Enables operation in under-hood environments and high-power density PCB layouts. |
| Package | SMBG (DO-215AA) - Standardized 2-pin gull-wing surface-mount package with 5.0 mm × 5.0 mm copper pad footprint per terminal. |
Pinout & Package
SMBG16A-M3/52 uses the SMBG (DO-215AA) package: a low-profile, halogen-free, RoHS-compliant surface-mount case with matte tin-plated leads solderable per J-STD-002. Polarity is marked by a cathode band on the body end.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry point in forward bias; connected to ground or low-side reference in unidirectional configuration | Provides return path for surge current; must be routed to low-impedance ground plane to maintain clamping performance. |
| Cathode | Current exit point in forward bias; connected to protected line (e.g., 12 V rail or signal trace) | Acts as the "protected node" interface; clamping occurs between cathode and anode when voltage exceeds VBR. |
Key Features
| Feature | Design Value |
|---|---|
| AEC-Q101 qualified | Validated for automotive-grade reliability including temperature cycling, humidity testing, and surge endurance - supports Tier-1 qualification requirements. |
| 600 W peak pulse power (10/1000 μs) | Enables single-device protection against severe transients like load dump without external series impedance or derating. |
| Low incremental surge resistance | Minimizes VC overshoot during fast-rising transients (e.g., ESD or inductive switching), improving protection margin for sensitive ICs. |
| MSL Level 1, 260 °C peak reflow | Eliminates pre-bake requirement for SMT assembly, reducing manufacturing cost and cycle time in high-volume automotive production. |
| Glass passivated junction | Ensures stable leakage current and breakdown voltage over time and temperature - critical for long-life automotive applications. |
Applications
| Automotive Power Input Protection | Industrial Sensor Signal Line Protection |
|---|---|
|
Use Scenario: Protecting 12 V power inputs of body control modules (BCM), infotainment head units, and ADAS ECUs against ISO 7637-2 load dump and jump-start surges. IC Role / Device Role: Primary shunt TVS placed directly at connector entry point to clamp transients before they reach DC-DC converters and microcontrollers. Use Value: SMBG16A-M3/52's 26.0 V clamping voltage ensures downstream 36 V-rated regulators remain within safe operating area during 120 V/500 ms load dump events. |
Use Scenario: Safeguarding analog sensor outputs (e.g., pressure, temperature, position) in PLC I/O modules exposed to field wiring transients and ESD. IC Role / Device Role: Low-capacitance (<50 pF) unidirectional TVS placed adjacent to ADC input pins to suppress fast-rising noise without distorting signal integrity. Use Value: With <1.0 μA leakage at 16 V, SMBG16A-M3/52 avoids loading high-impedance sensor bridges or ratiometric references in precision measurement circuits. |
| Consumer USB Power Port Protection | Telecom DC Feeder Line Protection |
|
Use Scenario: Securing 5 V/9 V USB PD power delivery paths in smart home hubs and docking stations against hot-plug and cable discharge events. IC Role / Device Role: Standoff-rated TVS on VBUS line upstream of USB controller and port switch ICs to prevent latch-up or gate oxide damage. Use Value: SMBG16A-M3/52's 16 V VWM provides 1 V margin above 15 V USB PD PPS maximum, enabling clean clamping without false triggering during normal operation. |
Use Scenario: Protecting -48 V DC telecom feeder lines in remote radio units (RRUs) and base station power supplies from lightning-induced surges and AC cross-talk. IC Role / Device Role: Unidirectional TVS configured with cathode to negative rail to clamp positive-going transients while blocking reverse conduction. Use Value: 100 A IFSM rating allows SMBG16A-M3/52 to survive multiple 10/1000 μs surges up to 600 W without degradation - verified per Telcordia GR-1089-CORE. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBG16AHE3/52 | AEC-Q101 qualified; same electrical specs; HE3 suffix denotes AEC-Q101 qualification and RoHS compliance (vs. M3's halogen-free + RoHS only) | Required for automotive safety-critical modules requiring formal AEC-Q101 documentation traceability | Select SMBG16AHE3/52 when full AEC-Q101 test report submission is mandated by OEM; otherwise SMBG16A-M3/52 suffices for industrial-grade designs. |
| SMBJ16A-M3/52 | Same VWM/VBR/VC; lower PPPM = 600 W (same rating) but higher RθJA = 110 °C/W vs. 100 °C/W; SMBJ uses DO-214AB package (larger footprint) | Preferred where board space permits larger package and thermal relief via larger pads is needed | Choose SMBG16A-M3/52 for space-constrained automotive PCBs; SMBJ16A-M3/52 offers better thermal margin in high-ambient industrial enclosures. |
Compared with SMBG16AHE3/52, the SMBG16A-M3/52 omits formal AEC-Q101 certification documentation but retains identical electrical and thermal performance; versus SMBJ16A-M3/52, it delivers equivalent surge protection in 15% less board area with superior thermal resistance - making it optimal for compact, high-density automotive electronics.
Availability
SMBG16A-M3/52 is available at Aetrix Electronics and suitable for automotive power rail protection, industrial sensor interface hardening, and telecom DC feeder line safeguarding requiring stable component supply across multi-year production cycles.
Supply support for SMBG16A-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 developed for high-reliability surface-mount transient suppression in space-constrained automotive and industrial systems, prioritizing low-profile packaging, AEC-Q101 qualification, and consistent clamping performance across temperature.
FAQ
What is the clamping voltage of SMBG16A-M3/52 at its rated peak pulse current?
The SMBG16A-M3/52 has a maximum clamping voltage (VC) of 26.0 V at 23.1 A peak pulse current (IPPM) under 10/1000 μs waveform conditions. This value is measured per JEDEC standards and guarantees that protected circuitry sees no more than 26.0 V during a 600 W transient event - a key parameter for ensuring downstream ICs remain within absolute maximum ratings. The SMBG16A-M3/52 achieves this with low incremental surge resistance and tight VBR distribution.
Is SMBG16A-M3/52 suitable for automotive applications?
Yes, SMBG16A-M3/52 is halogen-free, RoHS-compliant, and qualified to AEC-Q101 for stress testing including temperature cycling, humidity bias, and surge endurance. While the M3 suffix itself denotes halogen-free industrial grade, the underlying SMBG16A die is AEC-Q101 qualified per Vishay's documentation - confirmed by identical electrical specs and thermal ratings as the HE3 variant. Engineers deploying SMBG16A-M3/52 in automotive modules must verify qualification documentation alignment with their OEM's requirements.
How does SMBG16A-M3/52 differ from SMBG16CA-M3/52?
SMBG16A-M3/52 is unidirectional with cathode marking and conducts only in reverse avalanche; SMBG16CA-M3/52 is bidirectional, symmetrical, and lacks polarity marking. Their VWM (16 V vs. 16 V), VBR (17.8–19.7 V), and VC (26.0 V) match, but SMBG16CA-M3/52 clamps equally for both polarities - making it suitable for AC signal lines or differential buses. SMBG16A-M3/52 is preferred for DC power rails where unidirectional blocking and lower leakage (<1.0 μA) are advantageous.
What is the thermal resistance of SMBG16A-M3/52, and how does it affect layout?
SMBG16A-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 datasheet; reducing pad size increases RθJA and risks thermal runaway during repetitive surges. For reliable operation at full 600 W rating, PCB layout must allocate adequate copper area and avoid thermal isolation - especially in automotive under-hood applications where ambient temperatures exceed 85 °C.
Can SMBG16A-M3/52 replace SMBJ16A-M3/52 in an existing design?
SMBG16A-M3/52 can replace SMBJ16A-M3/52 electrically - both share identical VWM, VBR, VC, and PPPM - but require PCB layout revision due to different packages: SMBG uses DO-215AA (smaller, gull-wing), while SMBJ uses DO-214AB (larger, J-bend). The SMBG16A-M3/52 offers 10% lower RθJA (100 vs. 110 °C/W) and saves ~15% board area. If mechanical compatibility is confirmed, the swap improves thermal performance and density without circuit redesign.
SMBG16A-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):
- 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)
SMBG16A-M3/52 FAQ
1.How can I place an order for SMBG16A-M3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG16A-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 SMBG16A-M3/52 reliable?
The price and inventory of SMBG16A-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 SMBG16A-M3/52 is usually 5 days.
3.What payment methods are accepted for SMBG16A-M3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG16A-M3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG16A-M3/52?
SMBG16A-M3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG16A-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 SMBG16A-M3/52?
For technical support, including SMBG16A-M3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG16A-M3/52 requirements.
6.How does Aetrix verify that SMBG16A-M3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG16A-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 SMBG16A-M3/52 meets industry standards.
7.What is the process for return or replacement of SMBG16A-M3/52?
All SMBG16A-M3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG16A-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 SMBG16A-M3/52 part is unused and in its original packaging.
Return procedure for SMBG16A-M3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG16A-M3/52 Tags
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