SF24-AP Equivalent & Substitute Parts

Part Overview

The SF24-AP is a general-purpose rectifier diode manufactured by Micro Commercial Co, rated for 200 V DC reverse voltage and 2 A average rectified current in a DO-15 through-hole package. This component is classified as obsolete, which necessitates identification of equivalent and substitute parts for ongoing design support and procurement continuity. The SF24-AP features fast recovery characteristics with a reverse recovery time of 35 ns, making it suitable for standard rectification applications requiring moderate switching speeds.

Substiute Parts

SF24-AP

Micro Commercial CoIn Stock: 975SF24-AP Datasheet

Current PartRFQ

SF24G-AP

Micro Commercial CoIn Stock: 991SF24G-AP Datasheet

DirectRFQ

SF24GHB0G

Taiwan Semiconductor CorporationIn Stock: 826SF24GHB0G Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SF24-AP is determined by strict equivalence across the following critical electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Voltage - DC Reverse (Vr) (Max): 200 V
• Current - Average Rectified (Io): 2 A
• Voltage - Forward (Vf) (Max) @ If: 950 mV @ 2 A
• Reverse Recovery Time (trr): 35 ns
• Current - Reverse Leakage @ Vr: 5 µA @ 200 V

Mechanical Equivalence Criteria:

• Mounting Type: Through Hole
• Package / Case: DO-204AC, DO-15, Axial

Compliance Criteria:

• RoHS Status: ROHS3 Compliant
• Technology: Standard

The substitute parts identified maintain full electrical and mechanical compatibility with the SF24-AP while offering improved product status or enhanced operational characteristics. All substitutes are rated for the same voltage and current specifications, ensuring direct functional replacement in existing circuit designs.

Parameter Comparison

Engineering Selection Recommendations

SF24G-AP (Direct Substitute): The SF24G-AP is the direct equivalent replacement for the obsolete SF24-AP. Both parts are manufactured by Micro Commercial Co and share identical electrical specifications. The SF24G-AP maintains active product status, ensuring long-term availability and supply chain continuity. The SF24G-AP features an extended operating temperature range (-65°C ~ 150°C) compared to the SF24-AP (-55°C ~ 125°C), providing enhanced thermal performance margins. This part is suitable for direct substitution in all applications previously using the SF24-AP without circuit modification.

SF24GHB0G (Upgrade Substitute): The SF24GHB0G is manufactured by Taiwan Semiconductor Corporation and provides an upgraded alternative with automotive-grade qualification (AEC-Q101). This part maintains all critical electrical parameters identical to the SF24-AP while offering reduced junction capacitance (40 pF versus 60 pF), which may provide improved high-frequency performance characteristics. The SF24GHB0G is rated for extended temperature operation (-55°C ~ 150°C) and is suitable for applications requiring automotive-grade reliability or enhanced thermal specifications. Selection of this part is appropriate when automotive qualification or improved capacitance characteristics are design requirements.

Frequently Asked Questions (FAQ)

Q: Can SF24G-AP be used as a direct replacement for SF24-AP? A: Yes. The SF24G-AP is electrically and mechanically equivalent to the SF24-AP. Both parts share identical voltage ratings (200 V), current ratings (2 A), forward voltage drop (950 mV @ 2 A), and reverse recovery time (35 ns). The SF24G-AP is manufactured by the same supplier and is actively produced, making it the recommended direct substitute for the obsolete SF24-AP.

Q: What is the difference between SF24G-AP and SF24GHB0G? A: Both parts meet the electrical requirements of the SF24-AP. The SF24GHB0G is manufactured by Taiwan Semiconductor Corporation and carries automotive-grade qualification (AEC-Q101). The SF24GHB0G features lower junction capacitance (40 pF versus 60 pF), which may provide improved switching characteristics in high-frequency applications. The SF24GHB0G is suitable when automotive qualification or enhanced capacitance performance is required.

Q: Are all substitute parts available in the same package? A: Yes. All substitute parts (SF24G-AP and SF24GHB0G) are available in DO-204AC/DO-15 axial through-hole packages, matching the mechanical form factor of the SF24-AP. No PCB layout modifications are required when substituting these parts.

Q: What is the operating temperature range difference between the main part and substitutes? A: The SF24-AP operates from -55°C to 125°C. The SF24G-AP extends this range to -65°C to 150°C, providing 10°C lower minimum and 25°C higher maximum operating temperatures. The SF24GHB0G operates from -55°C to 150°C, providing 25°C higher maximum temperature. Selection should be based on specific application temperature requirements.

Q: Are all parts RoHS compliant? A: Yes. The SF24-AP, SF24G-AP, and SF24GHB0G are all ROHS3 compliant, meeting environmental and regulatory requirements for lead-free manufacturing and hazardous substance restrictions.

Q: What does AEC-Q101 qualification mean for the SF24GHB0G? A: AEC-Q101 is an automotive industry qualification standard for discrete semiconductors. The SF24GHB0G meets this qualification, indicating it has undergone rigorous testing and validation for automotive applications. This qualification is relevant only if your application requires automotive-grade components.