SMF4L3.3AQ - SMF4L200(C)AQ

Product Summary

Description and Applications

This new generation TVS is designed for transient overvoltage protection. The combination of small size and high ESD surge capability makes it ideal for use in:

• Power management
• Automotive
• Battery contacts

Features

• 400W Peak Pulse Power Dissipation (10µs × 1000µs Waveform)
• 5V to 200V Standoff Voltages
• Provides ESD Protection per IEC61000-4-2 Standard: Air ±30kV, Contact ±30kV
• Excellent Clamping Capability
• Fast Response Time: Typically Less Than 1.0ns for Uni-Direction, Less Than 5.0ns for Bi-Direction, Form 0 Volts to BV Min.
• Lead-Free Finish; RoHS Compliant (Notes 1 & 2)
• Halogen and Antimony Free. "Green" Device (Note 3)
• Suitable for automotive applications requiring specific change control; AEC-Q101 qualified, PPAP capable, and manufactured in IATF 16949 certified facilities. More details

Mechanical Data

• Package: DO-219AA
• Package Material: Molded Plastic, "Green" Molding Compound.
• UL Flammability Classification Rating: 94V-0
• Moisture Sensitivity: Level 1 per J-STD-020
• Terminals: Matte Tin Finish Annealed over Copper Alloy Leadframe. Solderable per MIL-STD-202, Method 208.
• Weight: 0.016 grams (Approximate)
• Polarity: Cathode Band Denotes Uni-Directional Device; None Cathode Band Denotes Bi-Directional Device.

Package Diagram (DO-219AA): Top view illustration of the DO-219AA package.

Polarity Marking: A band on the device indicates the cathode for uni-directional devices; bi-directional devices have no such band.

Ordering Information

Notes:

• 1. Compliance with EU Directives (RoHS, RoHS 2, RoHS 3).
• 2. Information on Diodes Incorporated's definitions of Halogen- and Antimony-free, "Green" and Lead-free is available at https://www.diodes.com/quality/lead-free/.
• 3. "Green" products contain <900ppm bromine, <900ppm chlorine (<1500ppm total Br + Cl) and <1000ppm antimony compounds.
• 4. Packaging details are available at https://www.diodes.com/design/support/packaging/diodes-packaging/.

Marking Information

The marking on the device includes the Product Type Marking Code (ZZ) and the Date Code Marking (YWXX). Y represents the year, W the week, and XX the lot code. A bar indicates the cathode side for uni-directional devices.

Date Code Key:

Maximum Ratings

Ratings are specified at TA = +25°C unless otherwise noted. Applicable for single phase, half wave, 60Hz, resistive or inductive load. For capacitive load, derate current by 20%.

Thermal Characteristics

Notes:

• 5. Non-repetitive current pulse, per figure 4 and derated above TA = +25°C, per figure 1.
• 6. 1/2 sine wave (or equivalent square wave), pulse width = 8.3ms, duty cycle = 4 pulses/minute maximum.
• 7. VF max = 3V at IF = 16A, 300µs square wave pulse.
• 8. Device mounted on 1" x 1", FR-4 PCB; 2 oz. Cu pad layout.
• 9. Thermal resistance from junction to ambient, lead and case.
• 10. Theoretical ROJS calculated from the top center of the die straight down to the PCB/cathode tab solder junction.

Electrical Characteristics

Electrical characteristics are specified at TA = +25°C, unless otherwise specified.

Notes:

• 11. VBR measured at pulse test current IT with tp ≤ 5.0ms at TA = +25°C.
• 12. The IR limit is double for Bi-directional devices.

Electrical Characteristics (Continued)

Electrical characteristics are specified at TA = +25°C, unless otherwise specified.

Graphical Data Descriptions

The following descriptions summarize the information presented in the graphs:

• Fig. 1 Pulse Derating Curve: This graph illustrates the percentage of peak pulse power or current that can be handled as a function of ambient temperature. It shows a decreasing derating percentage as temperature increases, based on a 10x1000 waveform.
• Fig. 2 Pulse Waveform: This graph depicts a typical 10x1000 µs waveform, showing the peak value (Ipp) and half value (Ipp/2) over time (in milliseconds).
• Fig. 3 Steady State Power Derating Curve: This graph shows the maximum average power dissipation (PM(AV)) in Watts as a function of lead temperature (°C) for a 60Hz resistive or inductive load. It indicates a decrease in allowable power as lead temperature rises.
• Fig. 4 Pulse Rating Curve: This graph displays the peak power (PP) in kW versus pulse width (tp) in microseconds for a non-repetitive pulse waveform at TA = 25°C. It shows that higher peak power can be handled for shorter pulse widths.
• Fig. 5 Typical Junction Capacitance: This graph illustrates the typical junction capacitance in picofarads (pF) as a function of stand-off voltage (V) for both uni-directional and bi-directional devices, measured at 1MHz with a 1.0 VRMS signal bias and 0 Vdc.

Package Outline Dimensions

The DO-219AA package has the following dimensions (in mm):

All dimensions are in millimeters.

Suggested Pad Layout

The suggested pad layout for the DO-219AA package is shown below, with dimensions in mm:

Important Notice

Diodes Incorporated and its subsidiaries make no warranties regarding the information in this document. The information is for illustrative purposes only. Customers are responsible for selecting appropriate products, evaluating suitability, ensuring compliance with regulations, and implementing safeguards. Diodes assumes no liability for application-related information or feedback. Products may be covered by patents and trademarks. Diodes' products are subject to Standard Terms and Conditions of Sale. Products and technology must not be used in violation of applicable laws or regulations. While efforts are made to ensure accuracy, the document may contain errors. The English version is the definitive one. Unauthorized copying or use is prohibited.

For the most recent version of this notice, visit: https://www.diodes.com/about/company/terms-and-conditions/important-notice