SL310AFL-TP Equivalent & Substitute Parts

Part Overview

The SL310AFL-TP is an active Schottky rectifier diode manufactured by Micro Commercial Co, rated for 100V DC reverse voltage and 3A average rectified current in a surface mount DO-221AC (SMA Flat Leads) package. This component is designed for fast recovery applications with switching speeds ≤500ns and operates across a junction temperature range of -55°C to 150°C. The part is RoHS3 compliant and carries MSL 1 (Unlimited) moisture sensitivity classification. Substitute parts are identified when equivalent electrical performance parameters are met within the same package family, enabling design flexibility and supply chain alternatives while maintaining circuit functionality.

Substiute Parts

SL310AFL-TP

Micro Commercial CoIn Stock: 10469SL310AFL-TP Datasheet

Current PartRFQ

VSSAF5M10-M3/H

Vishay General Semiconductor - Diodes DivisionIn Stock: 17551VSSAF5M10-M3/H Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SL310AFL-TP are qualified based on the following electrical and mechanical compatibility criteria:

Mandatory Matching Parameters:

• Voltage - DC Reverse (Vr) (Max): 100V minimum
• Package / Case: DO-221AC with SMA Flat Leads configuration
• Mounting Type: Surface Mount
• Technology: Schottky rectifier diode
• Speed Classification: Fast Recovery ≤500ns, >200mA (Io)

Allowable Variation Parameters:

• Current - Average Rectified (Io): Equal to or greater than 3A
• Voltage - Forward (Vf) (Max): Within acceptable circuit operating margins
• Current - Reverse Leakage @ Vr: Within acceptable leakage specifications
• Operating Temperature - Junction: Must encompass or exceed -55°C to 150°C range

The VSSAF5M10-M3/H qualifies as a substitute because it maintains identical reverse voltage rating (100V), identical package configuration (DO-221AC, SMA Flat Leads), identical mounting type (Surface Mount), identical technology (Schottky), and identical speed classification (Fast Recovery ≤500ns, >200mA). The substitute part exceeds the current rating (5A vs. 3A), which is acceptable for applications requiring the SL310AFL-TP.

Parameter Comparison

Engineering Selection Recommendations

SL310AFL-TP (Main Part): The SL310AFL-TP is the primary component selection when the specified 3A current rating and 100µA reverse leakage characteristics are circuit requirements. This part is Active status, RoHS3 compliant, and carries MSL 1 (Unlimited) moisture sensitivity, indicating suitability for standard manufacturing environments without moisture control restrictions. The -55°C to 150°C junction temperature range supports applications across industrial and commercial temperature bands.

VSSAF5M10-M3/H (Substitute Part): The VSSAF5M10-M3/H qualifies as a functional substitute when higher current capacity (5A vs. 3A) is acceptable or beneficial to the circuit design. This part is Active status and operates across -40°C to 175°C, providing extended high-temperature performance. The substitute part exhibits higher reverse leakage (400µA vs. 100µA @ 100V) and forward voltage drop (790mV @ 5A vs. 600mV @ 3A), which must be evaluated against circuit power dissipation and bias requirements. RoHS compliance status for the substitute part is not provided in available documentation.

Selection between these parts depends on whether the application requires the lower leakage and forward voltage characteristics of the SL310AFL-TP or can accommodate the higher current capacity and extended temperature range of the VSSAF5M10-M3/H.

Frequently Asked Questions (FAQ)

Q: Can the VSSAF5M10-M3/H directly replace the SL310AFL-TP in my circuit?

A: The VSSAF5M10-M3/H is mechanically and electrically compatible at the package level (both use DO-221AC SMA Flat Leads surface mount configuration). However, circuit-level compatibility depends on whether the higher reverse leakage current (400µA vs. 100µA) and higher forward voltage drop (790mV @ 5A vs. 600mV @ 3A) are acceptable for your specific application. The higher current rating (5A) is not a limitation for circuits designed for 3A operation.

Q: What are the key differences between these two parts?

A: Both parts share identical 100V reverse voltage rating, DO-221AC package configuration, Schottky technology, and fast recovery speed classification. The primary differences are: (1) Current rating: SL310AFL-TP is 3A, VSSAF5M10-M3/H is 5A; (2) Reverse leakage: SL310AFL-TP is 100µA, VSSAF5M10-M3/H is 400µA @ 100V; (3) Forward voltage: SL310AFL-TP is 600mV @ 3A, VSSAF5M10-M3/H is 790mV @ 5A; (4) Temperature range: SL310AFL-TP is -55°C to 150°C, VSSAF5M10-M3/H is -40°C to 175°C.

Q: Are both parts available in the same packaging format?

A: Both parts use the DO-221AC (SMA Flat Leads) surface mount package. The SL310AFL-TP is supplied in Tape & Reel (TR) format. The VSSAF5M10-M3/H is available in Cut Tape (CT) and Digi-Reel® formats. Verify packaging availability with your supplier for production requirements.

Q: Which part should I select for a high-temperature application?

A: The VSSAF5M10-M3/H supports operation to 175°C junction temperature, compared to 150°C for the SL310AFL-TP. If your application requires sustained operation above 150°C, the VSSAF5M10-M3/H provides additional thermal margin. Confirm that the higher reverse leakage and forward voltage characteristics are acceptable for your circuit design.

Q: Does reverse leakage current matter for my application?

A: Reverse leakage current affects circuit bias conditions, particularly in precision analog circuits or low-power applications. The SL310AFL-TP specifies 100µA leakage, while the VSSAF5M10-M3/H specifies 400µA @ 100V. If your circuit is sensitive to leakage current, the SL310AFL-TP is the preferred selection. For power conversion and switching applications, the difference may be negligible.

Q: Can I use the higher-rated 5A part in a 3A circuit?

A: Yes. A higher current-rated diode can be used in lower-current applications without functional degradation. The 5A rating of the VSSAF5M10-M3/H does not prevent its use in 3A circuits. However, the higher forward voltage drop (790mV vs. 600mV) will result in increased power dissipation, which must be evaluated for thermal management in your specific design.