SK52C Schottky Diode Equivalent & Substitute Parts

Part Overview

The SK52C is a Schottky rectifier diode manufactured by Taiwan Semiconductor Corporation, rated for 20V DC reverse voltage and 5A average rectified current in a DO-214AB (SMC) surface mount package. This component is classified as Active product status and is RoHS3 compliant. Equivalent and substitute parts are identified based on matching electrical specifications, package compatibility, and operational parameters to ensure direct functional replacement in circuit applications.

Substiute Parts

SK52C

Taiwan Semiconductor CorporationIn Stock: 12199SK52C Datasheet

Current PartRFQ

B520C-13-F

Diodes IncorporatedIn Stock: 32136B520C-13-F Datasheet

Parametric EquivalentRFQ

B520CQ-13-F

Diodes IncorporatedIn Stock: 6459B520CQ-13-F Datasheet

Parametric EquivalentRFQ

SK52L-TP

Micro Commercial CoIn Stock: 3738SK52L-TP Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SK52C is determined by equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Voltage - DC Reverse (Vr) (Max): 20 V
• Current - Average Rectified (Io): 5 A
• Voltage - Forward (Vf) (Max) @ If: 550 mV @ 5 A
• Speed: Fast Recovery ≤ 500ns, > 200mA (Io)
• Operating Temperature - Junction: -55°C ~ 150°C

Mechanical Equivalence Criteria:

• Package / Case: DO-214AB, SMC
• Mounting Type: Surface Mount

Compliance Equivalence Criteria:

• Technology: Schottky
• RoHS Status: ROHS3 Compliant

All substitute parts listed meet these core parameters and are therefore electrically and mechanically interchangeable with the SK52C in standard applications. Variations in reverse leakage current and capacitance are noted but do not preclude substitution where the specified maximum ratings are not exceeded.

Parameter Comparison

Engineering Selection Recommendations

B520C-13-F (Diodes Incorporated): This part is a direct parametric equivalent to the SK52C with Active product status. All electrical and mechanical specifications match the main part. The B520C-13-F is suitable for new designs and ongoing production applications. Packaging is supplied as Tape & Reel (TR) with 32,100 units in stock.

B520CQ-13-F (Diodes Incorporated): This part meets all electrical and mechanical equivalence criteria and carries Active product status. The B520CQ-13-F is qualified to AEC-Q101 automotive standard and carries Automotive grade designation. This variant is appropriate for automotive and high-reliability applications. Tape & Reel packaging with 6,400 units in stock.

SK52L-TP (Micro Commercial Co): This part is electrically and mechanically equivalent but carries Not For New Designs product status. The SK52L-TP exhibits higher reverse leakage current (1 mA @ 20 V versus 500 µA @ 20 V) and lower capacitance (200pF versus 300pF). This part is suitable only for legacy system maintenance and repair. Tape & Reel packaging with 3,675 units in stock.

For new designs, B520C-13-F is the primary recommendation. For automotive applications requiring AEC-Q101 qualification, B520CQ-13-F is specified. The SK52L-TP is restricted to replacement of existing SK52C installations only.

Frequently Asked Questions (FAQ)

Q: Can B520C-13-F directly replace SK52C in existing circuits?

A: Yes. The B520C-13-F meets all electrical specifications (20V reverse voltage, 5A average rectified current, 550mV forward voltage at 5A) and is packaged in the identical DO-214AB (SMC) surface mount case. No circuit modifications are required.

Q: What is the difference between B520C-13-F and B520CQ-13-F?

A: Both parts are electrically identical. The B520CQ-13-F carries AEC-Q101 automotive qualification and Automotive grade designation, making it suitable for automotive applications. The B520C-13-F is standard grade. Selection depends on application requirements.

Q: Why is SK52L-TP marked "Not For New Designs"?

A: SK52L-TP carries Not For New Designs product status, indicating the manufacturer has discontinued active development and recommends alternative parts for new applications. This part remains available for legacy system support only.

Q: Does reverse leakage current variation affect substitution?

A: The SK52L-TP exhibits 1 mA reverse leakage at 20V compared to 500 µA for other parts. This difference remains within acceptable limits for standard rectifier applications but may impact performance in precision analog circuits. Verify application requirements before selection.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts (B520C-13-F, B520CQ-13-F, SK52L-TP) are RoHS3 compliant and REACH unaffected, matching the compliance status of the SK52C.

Q: What packaging formats are available?

A: The SK52C is supplied in standard packaging. Substitute parts B520C-13-F, B520CQ-13-F, and SK52L-TP are supplied in Tape & Reel (TR) format, which is standard for high-volume surface mount assembly.

Q: Can these parts operate across the full temperature range of -55°C to 150°C?

A: Yes. All listed parts, including the main SK52C, are rated for junction temperature operation from -55°C to 150°C, ensuring compatibility across industrial and automotive temperature ranges.