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Vishay General Semiconductor - Diodes Division SMBG16AHE3/52
- Part No.:
- SMBG16AHE3/52
- Manufacturer:
- Vishay General Semiconductor - Diodes Division
- Category:
- TVS Diodes
- Package:
- DO-215AA, SMB Gull Wing
- Datasheet:
-
SMBG16AHE3/52.pdf
- Description:
- TVS DIODE 16VWM 26VC DO215AA
- Quantity:
- Payment:
- Shipping:
Inventory:3,131
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Product details
Overview
SMBG16AHE3/52 from Vishay General Semiconductor is a unidirectional transient voltage suppressor (TVS) diode in SMBG (DO-215AA) package, designed for robust overvoltage protection of sensitive electronics. It features 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 (IPPM), and 600 W peak pulse power (10/1000 μs waveform), suitable for automotive power line and sensor interface protection.
For engineers reviewing the SMBG16AHE3/52 datasheet, SMBG16AHE3/52 pinout, SMBG16AHE3/52 application, or SMBG16AHE3/52 equivalent, this page delivers verified electrical parameters, AEC-Q101 qualification status, thermal resistance (RθJA = 100 °C/W), junction temperature range (−55 to +150 °C), and bidirectional/unidirectional polarity options - all critical for ESD and surge immunity validation in industrial and automotive designs.
Technical Context
This TVS diode operates as a clamping device in parallel with protected circuitry, activating when reverse voltage exceeds VBR to divert surge energy away from downstream components. Its glass-passivated junction ensures stable leakage performance and fast response time (<1 ns), while low incremental surge resistance minimizes voltage overshoot during transient events.
The SMBG16AHE3/52 is rated for 100 A non-repetitive forward surge current (IFSM, 8.3 ms half-sine), supports automated SMT placement, and meets J-STD-020 MSL Level 1 (peak reflow 260 °C). Its unidirectional polarity (cathode-banded) enables precise integration into DC-biased signal or power rails requiring asymmetric protection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| VWM | 16 V - Maximum continuous reverse operating voltage before clamping begins; defines safe DC bias margin. |
| VBR (min/max) | 17.8 V / 19.7 V at IT = 1 mA - Confirmed breakdown threshold range; ensures predictable turn-on under surge conditions. |
| VC @ IPPM | 26.0 V at 23.1 A - Clamped voltage during 600 W transient; determines worst-case stress on protected IC or MOSFET. |
| PPPM | 600 W (10/1000 μs) - Peak surge power handling capability; validates compliance with IEC 61000-4-5 Level 4. |
| TJ max. | +150 °C - Maximum junction temperature; enables operation in under-hood automotive environments. |
| RθJA | 100 °C/W - Thermal resistance junction-to-ambient on 0.2" × 0.2" copper pads; informs PCB thermal design requirements. |
| AEC-Q101 | Qualified - Certified for automotive-grade reliability per stress test standard; required for powertrain and body electronics. |
Pinout & Package
Package: SMBG (DO-215AA), surface-mount, low-profile case with matte tin-plated leads solderable per J-STD-002. Cathode indicated by band marking.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| Anode | Current entry terminal under forward bias | Connected to ground or lower-potential rail in unidirectional configuration; enables clamping to reference plane. |
| Cathode | Current exit terminal under forward bias; marked with band | Connected to protected line (e.g., 12 V supply or CAN_H); defines directionality and clamping polarity. |
Key Features
| Feature | Design Value |
|---|---|
| Glass-passivated junction | Ensures stable VBR tolerance and low leakage (<1.0 μA at VWM) across temperature and lifetime. |
| 600 W peak pulse power (10/1000 μs) | Supports high-energy transients per ISO 7637-2 Pulse 1/2/5a without degradation. |
| AEC-Q101 qualification | Validates reliability for automotive applications including engine control units and ADAS sensor interfaces. |
| MSL Level 1 (260 °C peak) | Enables single-reflow assembly without moisture sensitivity concerns or baking requirements. |
| Low profile SMBG package | Reduces board space vs. SMA/SMB; compatible with high-density layouts in ECUs and infotainment modules. |
Applications
| Automotive Power Line Protection | Industrial Sensor Interface Protection |
|---|---|
Use Scenario: Protecting 12 V battery-fed microcontroller inputs and LIN bus transceivers from load dump and jump-start surges. IC Role / Device Role / Timing Role: Unidirectional TVS placed between power rail and ground to clamp transients above 16 V. Use Value: Limits clamped voltage to 26.0 V at 23.1 A, preventing damage to 3.3 V or 5 V logic-level devices downstream. | Use Scenario: Safeguarding analog outputs of pressure/temperature sensors connected to PLC analog input cards. IC Role / Device Role / Timing Role: Parallel-connected TVS on 4–20 mA loop or 0–10 V signal lines to absorb ESD and inductive switching spikes. Use Value: Fast <1 ns response and low clamping voltage preserve signal integrity while meeting IEC 61000-4-2 Level 4 (15 kV air). |
| Consumer Power Adapter Input Stage | Telecom DC Power Feed Protection |
Use Scenario: Secondary-side overvoltage suppression in AC/DC adapters powering USB-C PD controllers or display drivers. IC Role / Device Role / Timing Role: Standoff-rated TVS on regulated 5 V/9 V/15 V output rails to prevent latch-up during output short-circuit recovery. Use Value: 16 V VWM allows margin above nominal output; 26.0 V VC avoids triggering downstream OVP circuits prematurely. | Use Scenario: Protecting PoE-powered Ethernet switches and base station RF front-end bias supplies from lightning-induced surges. IC Role / Device Role / Timing Role: Unidirectional TVS on 48 V DC feed lines upstream of DC/DC converters and LDOs. Use Value: 600 W rating handles multi-kA induced surges; AEC-Q101 qualification adds confidence for outdoor telecom deployments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar transient voltage suppression applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| SMBG16AT3G | Same VWM (16 V), VBR (17.8–19.7 V), and PPPM (600 W); TO-277 package (smaller footprint, no leads) | Requires different pad layout; not drop-in compatible due to leadless construction and thermal path differences | Select when board space is constrained and reflow profile supports leadless packages. |
| 1.5KE16A | Higher VWM (13.6 V), same clamping (26.0 V), but axial DO-201 package; 1500 W rating (10/1000 μs) | Through-hole mounting only; unsuitable for automated SMT production or high-density boards | Choose only for legacy through-hole designs or prototyping where manual assembly is acceptable. |
Compared with SMBG16AHE3/52, SMBG16AT3G offers identical electrical specs in a smaller leadless package but demands layout revision, while 1.5KE16A provides higher surge capacity in an obsolete through-hole form factor - making SMBG16AHE3/52 the optimal balance of AEC-Q101 compliance, SMT manufacturability, and proven 600 W clamping performance.
Availability
SMBG16AHE3/52 is available at Aetrix Electronics and suitable for automotive ECU design, industrial sensor interface development, and consumer power adapter qualification requiring stable component supply and long-term lifecycle assurance.
Supply support for SMBG16AHE3/52 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, MOSFETs, and optoelectronics with emphasis on reliability and automotive-grade qualification.
The SMBG series is engineered specifically for high-reliability transient suppression in harsh environments - targeting automotive power distribution, industrial automation I/O modules, and telecom infrastructure where AEC-Q101 and IEC 61000-4-5 compliance are mandatory.
FAQ
What is the clamping voltage of SMBG16AHE3/52 and how is it measured?
The SMBG16AHE3/52 has a maximum clamping voltage (VC) of 26.0 V, measured at a peak pulse current (IPPM) of 23.1 A using a 10/1000 μs waveform. This value reflects the actual voltage seen by protected circuitry during a standardized surge event and is guaranteed per Vishay's datasheet (Document Number: 88456, Rev. 09-Jan-2024). The SMBG16AHE3/52 maintains this clamping performance across its full operating temperature range.
Is SMBG16AHE3/52 qualified for automotive applications?
Yes, SMBG16AHE3/52 is explicitly AEC-Q101 qualified, as confirmed in the Vishay datasheet (page 2, Notes section and Ordering Information table). This qualification covers stress tests including HTGB, HTRB, TCT, and mechanical shock, validating its suitability for automotive powertrain, body electronics, and ADAS systems. The "HE3" suffix denotes AEC-Q101 qualification and RoHS compliance.
What does the "HE3/52" suffix mean in SMBG16AHE3/52?
The "HE3" suffix indicates RoHS-compliant, AEC-Q101-qualified industrial-grade construction with matte tin-plated leads; "52" specifies the preferred packaging code - 7" diameter plastic tape and reel containing 750 units. This matches Vishay's official ordering information (Document 88456, page 3), confirming full traceability and standard SMT compatibility.
How does SMBG16AHE3/52 compare to bidirectional TVS diodes like SMBG16CA?
SMBG16AHE3/52 is unidirectional and optimized for DC-biased lines (e.g., 12 V supply rails), whereas SMBG16CA is bidirectional and suited for AC or differential signal lines (e.g., RS-485, CAN). Their VBR and VC values differ: SMBG16CA has symmetric breakdown in both directions, while SMBG16AHE3/52 conducts only in reverse bias. The SMBG16AHE3/52 cathode band must be oriented toward the protected line.
What is the thermal resistance and recommended pad layout for SMBG16AHE3/52?
The SMBG16AHE3/52 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, as specified in the Vishay datasheet (page 3, Thermal Characteristics). Use this pad size to ensure reliable power dissipation during repetitive surge events and avoid exceeding TJ(max) = +150 °C.
SMBG16AHE3/52 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:
- -
- Capacitance @ Frequency:
- -
- Operating Temperature:
- -55°C ~ 150°C (TJ)
- Grade:
- Automotive
- Qualification:
- AEC-Q101
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- DO-214AA (SMBG)
SMBG16AHE3/52 FAQ
1.How can I place an order for SMBG16AHE3/52 through Aetrix?
Please submit a Request for Quotation (RFQ) for SMBG16AHE3/52 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 SMBG16AHE3/52 reliable?
The price and inventory of SMBG16AHE3/52 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for SMBG16AHE3/52 is usually 5 days.
3.What payment methods are accepted for SMBG16AHE3/52?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for SMBG16AHE3/52 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for SMBG16AHE3/52?
SMBG16AHE3/52 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your SMBG16AHE3/52 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 SMBG16AHE3/52?
For technical support, including SMBG16AHE3/52 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your SMBG16AHE3/52 requirements.
6.How does Aetrix verify that SMBG16AHE3/52 is sourced from the original manufacturer or authorized distributors?
All SMBG16AHE3/52 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 SMBG16AHE3/52 meets industry standards.
7.What is the process for return or replacement of SMBG16AHE3/52?
All SMBG16AHE3/52 units undergo pre-shipment inspection (PSI). If there is an issue with SMBG16AHE3/52, 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 SMBG16AHE3/52 part is unused and in its original packaging.
Return procedure for SMBG16AHE3/52:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
SMBG16AHE3/52 Tags
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