SL24A-TP Schottky Diode Equivalent & Substitute Parts

Part Overview

The SL24A-TP is a surface mount Schottky diode manufactured by Micro Commercial Co, rated for 40V DC reverse voltage and 2A average rectified current in a DO-214AC (SMA) package. This component is classified as Active product status and is RoHS3 compliant with unlimited moisture sensitivity level (MSL 1). Schottky diodes in this voltage and current class are used in rectification, switching, and protection circuits where fast recovery characteristics and low forward voltage drop are required. Equivalent and substitute parts are identified based on matching electrical specifications, package compatibility, and compliance certifications.

Substiute Parts

SL24A-TP

Micro Commercial CoIn Stock: 738SL24A-TP Datasheet

Current PartRFQ

SSA24HE3_A/H

Vishay General Semiconductor - Diodes DivisionIn Stock: 88110SSA24HE3_A/H Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SL24A-TP are identified based on the following critical parameters that must match or exceed the main part specifications:

Electrical Matching Criteria:

• Voltage - DC Reverse (Vr) (Max): 40V minimum
• Current - Average Rectified (Io): 2A minimum
• Technology: Schottky diode
• Speed: Fast Recovery ≤ 500 ns, > 200 mA (Io)

Mechanical & Package Compatibility:

• Package / Case: DO-214AC (SMA) surface mount
• Mounting Type: Surface Mount

Compliance & Environmental:

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• Product Status: Active

The SSA24HE3_A/H from Vishay General Semiconductor - Diodes Division qualifies as a substitute part because it meets all critical electrical parameters, uses the identical DO-214AC (SMA) package, maintains RoHS3 compliance, and operates within the required temperature range.

Parameter Comparison

Engineering Selection Recommendations

SL24A-TP (Micro Commercial Co) is the primary part selection when available. This component is Active product status, RoHS3 compliant, and carries unlimited moisture sensitivity level (MSL 1), indicating robust handling characteristics for standard manufacturing environments.

SSA24HE3_A/H (Vishay General Semiconductor - Diodes Division) is a qualified substitute part. This component is also Active product status and RoHS3 compliant with identical MSL 1 rating. The Vishay part carries AEC-Q101 automotive qualification, which provides additional reliability assurance for applications requiring automotive-grade components. The forward voltage specification of 490 mV @ 2A is 20 mV higher than the SL24A-TP specification of 470 mV @ 2A, which remains within acceptable tolerance for most rectification and switching applications. The operating temperature range extends to -65°C, providing enhanced low-temperature performance compared to the SL24A-TP minimum of -55°C.

Both parts are surface mount devices in the DO-214AC (SMA) package, ensuring direct mechanical and electrical compatibility in PCB layouts. Selection between these parts should be based on availability, lead time, cost considerations, and application-specific requirements for automotive qualification.

Frequently Asked Questions (FAQ)

Q: Can the SSA24HE3_A/H be used as a direct replacement for the SL24A-TP in existing designs?

A: Yes. Both parts are Schottky diodes with identical 40V reverse voltage rating, 2A average rectified current, fast recovery characteristics (≤ 500 ns), and DO-214AC (SMA) surface mount package. The electrical parameters are compatible, and both maintain RoHS3 compliance with MSL 1 moisture sensitivity level. The forward voltage difference of 20 mV at 2A is within acceptable tolerance for standard rectification and switching applications.

Q: What is the significance of the AEC-Q101 qualification on the SSA24HE3_A/H?

A: AEC-Q101 is an automotive industry qualification standard that certifies component reliability under automotive operating conditions. The SSA24HE3_A/H carries this qualification, making it suitable for applications requiring automotive-grade components. The SL24A-TP does not list this qualification. Selection should be based on whether your application requires automotive-grade certification.

Q: Are there package compatibility concerns when substituting between these parts?

A: No. Both the SL24A-TP and SSA24HE3_A/H use the identical DO-214AC (SMA) surface mount package. They are mechanically and electrically compatible for PCB placement without layout modifications.

Q: How do the reverse leakage current specifications compare?

A: The SL24A-TP specifies 100 µA @ 40V, while the SSA24HE3_A/H specifies 200 µA @ 30V. These measurements are taken at different voltage points, making direct comparison imprecise. The Vishay specification is measured at a lower voltage (30V versus 40V), where leakage current is typically lower. Both values are acceptable for standard rectification applications.

Q: What is the temperature operating range difference between these parts?

A: The SL24A-TP operates from -55°C to 150°C junction temperature, while the SSA24HE3_A/H operates from -65°C to 150°C. The Vishay part extends the lower temperature limit by 10°C, providing enhanced performance in cold environment applications. Both parts share the same 150°C upper limit.

Q: Are both parts RoHS3 compliant?

A: Yes. Both the SL24A-TP and SSA24HE3_A/H are RoHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity level, indicating they meet current environmental and handling standards for electronics manufacturing.