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SS54C Datasheet: Component – hongjiacheng

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— Manufactured by hongjiacheng

The SS54C is a high-performance surface-mount Schottky barrier rectifier designed for high-efficiency power regulation in a compact DO-214AB (SMC) package. It features a low forward voltage drop of 0.55V at 5A, which minimizes power loss and heat generation during operation. With a high non-repetitive peak surge current capability of 120A and an integrated guardring for overvoltage protection, it provides robust reliability for demanding circuits. This diode is ideal for low-voltage, high-frequency applications such as DC/DC converters, freewheeling, and polarity protection.

📦 SMC
⚙️ Schottky Barrier Rectifier
🌿 RoHS Compliant
  • Max Voltage (Vmax): 40 V
  • Max Current (Imax): 5 A
  • Max Power (Pmax): 2.75 W
  • Operating Temperature: -55 to +125 °C
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$0.066963

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✨ Key Features

Low forward voltage drop and high efficiency; High forward surge current capability (120A); Guardring for overvoltage protection; Meets MSL level 1 per J-STD-020 (260°C peak); RoHS compliant and halogen-free construction.

🎯 Applications

Low voltage high frequency inverters; Free-wheeling diodes; DC/DC converters; Polarity protection applications.

⚡ Electrical Characteristics

Maximum Instantaneous Forward Voltage (Vf): 0.55V at 5.0A; Maximum DC Reverse Current (Ir): 0.15mA at 25°C and 50mA at 100°C; Typical Junction Capacitance (Cj): 550pF (measured at 4.0V DC, 1MHz).

⚠️ Absolute Maximum Ratings

Maximum Repetitive Peak Reverse Voltage (Vrrm): 40V; Maximum RMS Voltage (Vrms): 28V; Maximum DC Blocking Voltage (Vdc): 40V; Maximum Average Forward Rectified Current (If): 5.0A; Peak Forward Surge Current (Ifsm): 120A (8.3ms half-sine wave).

🔌 Pinout & Connection Diagram

Housed in a surface-mount SMC (DO-214AB) package. Polarity is indicated by a cathode line (band) on the device body denoting the cathode terminal.

🔄 Equivalent & Alternative Components

  • MBRS540T3G
  • SK54
  • B540-13-F
  • V5P4
  • SS54

❓ Frequently Asked Questions

What is the primary advantage of using a Schottky diode like the SS54C?

The primary advantage is the very low forward voltage drop (0.55V) and ultra-fast switching speed compared to standard silicon diodes, which significantly improves efficiency in high-frequency power conversion.

Is the SS54C suitable for lead-free soldering processes?

Yes, it meets MSL level 1 standards and can withstand a maximum peak temperature of 260°C during soldering, making it fully compatible with lead-free (LF) processes.

What does the guardring in the SS54C do?

The guardring is an internal structure that helps protect the Schottky junction from overvoltage stress and transients, enhancing the long-term reliability of the component.

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