SS24 40V 2A Schottky Rectifier Diode DO-214AC

SS24 40V 2A Schottky Rectifier Diode DO-214AC is a high-efficiency surface-mount power component designed specifically for applications requiring low forward voltage drops and ultra-fast switching speeds. This Schottky barrier diode utilizes a metal-to-silicon junction to achieve significantly lower power dissipation compared to standard silicon rectifiers. Consequently, it improves overall system efficiency in power-sensitive electronics. The SS24 comes housed in the compact DO-214AC (SMA) package, which facilitates automated assembly while providing excellent thermal performance. Therefore, engineers frequently select this diode to prevent reverse polarity damage and to serve as a high-speed freewheeling diode in DC-DC converters. Incorporating the SS24 into your design ensures reliable operation in modern high-density circuit boards where space and energy conservation remain critical priorities.

Key Features:

• Low Forward Voltage: The device exhibits a very low forward voltage drop, which minimizes heat generation and maximizes battery life in portable devices.
• High Surge Current Capability: This diode handles high non-repetitive peak surge currents, protecting the circuit during initial power-up or transient events.
• Ultra-Fast Switching: Schottky technology enables extremely fast recovery times, making it ideal for high-frequency switching power supplies.
• Surface Mount Design: The DO-214AC (SMA) package profile supports compact PCB layouts and high-speed pick-and-place assembly.
• Low Power Loss: Furthermore, the optimized guard ring structure protects the die against excessive voltage stress while maintaining high efficiency.

Technical Specifications:

• Maximum Recurrent Peak Reverse Voltage (V_RRM): 40 V
• Maximum Average Forward Rectified Current (I_F(AV)): 2.0 A
• Peak Forward Surge Current (I_FSM): 50 A (8.3 ms single half sine-wave)
• Maximum Forward Voltage (V_F): 0.50 V at 2.0 A
• Maximum Reverse Current (I_R): 0.5 mA at 25°C (20 mA at 100°C)
• Typical Junction Capacitance (C_J): ≈ 120 pF
• Operating Junction Temperature Range: −55°C to +150°C

Mechanical Specifications:

• Package Type: DO-214AC (SMA)
• Case Material: Molded Plastic (UL Flammability Classification 94V-0)
• Terminals: Pure tin plated, lead-free, solderable per MIL-STD-750.
• Polarity: Color band denotes cathode end.
• Weight: ≈ 0.064 grams

Dimensions:

• Body Length: ≈ 4.06 mm to 4.57 mm
• Body Width: ≈ 2.29 mm to 2.92 mm
• Overall Height: ≈ 1.90 mm to 2.41 mm
• Total Length (Including Leads): ≈ 4.83 mm to 5.59 mm

Pinout and Wiring:

• Cathode (K): Indicated by the white or silver polarity band. Connect this terminal to the positive side in a clipping or rectification circuit.
• Anode (A): The non-banded side. Connect this to the input or ground depending on the application.
• Wiring Note: However, always ensure the PCB trace width can handle the continuous 2A current to prevent localized overheating.

Datasheet Reference:

• Download SS24 Schottky Rectifier Datasheet

Commonly Used in:

• DC-DC Converters: Serving as the essential catch diode or freewheeling diode in buck and boost regulators.
• Battery Chargers: Protecting internal circuitry from reverse battery connection or back-feeding.
• Solar Panels: Acting as blocking diodes to prevent battery discharge through the panels at night.

Applications:

• Reverse Polarity Protection: Preventing damage to sensitive electronics if the power supply leads are swapped.
• Voltage Clamping: Protecting logic circuits from inductive voltage spikes generated by motors or relays.
• Low Voltage Rectification: Efficiently converting AC or pulsed DC to smooth DC in low-voltage power adapters.

Equivalent Models:

• 1N5819 (SMD Version): A common 1A alternative, though the SS24 offers a higher 2A current rating for more demanding loads.
• SK24: A direct functional equivalent in the same SMA package with similar voltage and current ratings.
• B240A: A popular alternative from various manufacturers that provides nearly identical electrical characteristics.

Package Includes:

• 1 x SS24 40V 2A Schottky Rectifier Diode (DO-214AC / SMA Package)