5PCS SS24 2A 40V SMA SMD DIODE

🔹 5PCS SS24 – 2A 40V Schottky Barrier Rectifier Diode (SMA/DO-214AC)

A surface-mount Schottky diode offering an excellent balance of moderate current handling, low forward voltage drop, and fast switching performance. The SS24 is designed for efficient power rectification and protection in low-to-medium voltage DC-DC converters, power supplies, and general circuit applications.

✅ Specifications:

• Part Number: SS24

• Type: Schottky Barrier Rectifier Diode

• Max Repetitive Reverse Voltage (VRRM): 40V

• Max Average Forward Rectified Current (IO): 2A

• Peak Forward Surge Current (IFSM): 50A (8.3ms single half-sine wave)

• Forward Voltage (VF): ~0.55V (Max at 2A) – Key Low-Loss Feature

• Reverse Recovery Time (trr): Negligible (Schottky Characteristic)

• Package: SMA / DO-214AC (Surface Mount)

• Mounting Type: SMD (Surface Mount Device)

• Operating Junction Temperature: -65°C to +150°C

• Marking: SS24 printed on diode body

• Quantity: 5 pieces

⚙️ Key Features:

• Low Forward Voltage Drop: Typically ~0.5V at 2A, significantly reducing power loss and heat generation compared to standard silicon diodes.

• Fast Switching Speed: Essentially no reverse recovery time, making it ideal for high-frequency switching applications (SMPS) up to several hundred kHz.

• Compact & Efficient: The SMA package delivers good power density for its size, saving valuable PCB space.

• Reliable Performance: Robust construction suitable for a wide range of commercial and industrial applications.

• High Surge Capability: Can withstand short high-current overloads, enhancing circuit robustness.

📦 Typical Applications:

• DC-DC Converters: Output rectification in 5V, 12V, and 24V buck, boost, or flyback converters.

• Reverse Polarity Protection: Ideal for battery-powered devices, robotics, and automotive accessories (12V systems).

• Freewheeling / Snubber Diodes: For inductive loads like relays, solenoids, small motor drives, and switching transistors.

• Battery Charging Circuits: As a blocking diode in solar panels, chargers, or power path management.

• General Purpose Rectification: In low-voltage AC adapters, power supplies, and DIY electronics projects.

🔧 Polarity & Mounting Notes:

• Polarity Identification: On the SMA package, the cathode is marked with a white line or stripe on one end. The body marking “SS24” is typically read from the cathode end.

• PCB Footprint: Requires a standard SMA (DO-214AC) land pattern.

• Thermal Management: For continuous operation near 2A, ensure the diode is soldered to an adequate PCB copper area (connected to a ground/power plane) to act as a heatsink. The SMA package can typically dissipate ~1W with proper board layout.

⚠️ Important Design Considerations:

• Thermal Design: Power dissipation at 2A is approximately P = Vf * I ≈ 0.55V * 2A = 1.1W. The SMA package requires good thermal coupling to the PCB to avoid overheating. Use thermal vias under the pad if possible.

• Reverse Leakage: Schottky diodes have higher reverse leakage current than PN junction diodes, especially at elevated temperatures. Consider this in high-precision or high-temperature circuits.

• Voltage Rating: The 40V rating is well-suited for 12V and 24V systems. For 24V applications with significant transients, consider a higher voltage rating (e.g., SS26 – 60V).

• Current Derating: At high ambient temperatures (>25°C), the continuous current rating should be reduced according to the manufacturer’s derating curve.

• Surge Protection: In automotive or industrial environments, additional transient voltage suppression may be needed if voltage spikes could exceed 40V.