STPS2L40AFN Equivalent & Substitute Parts Engineering Reference

Part Overview

The STPS2L40AFN is a Schottky rectifier diode designed for fast recovery applications, offering a maximum DC Reverse Voltage of 40V and an average rectified current of 2A. This device features a surface-mount DO-221AC, SMA Flat Leads package and meets ROHS3 and REACH compliance requirements. The part is currently classified as obsolete, necessitating identification and selection of alternative models for new designs or ongoing production support.

Substiute Parts

STPS2L40AFN

STMicroelectronicsIn Stock: 902STPS2L40AFN Datasheet

Current PartRFQ

STPS2L40AF

STMicroelectronicsIn Stock: 29387STPS2L40AF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution is strictly based on matching key parameters relevant to electrical performance and mechanical fit. The allowed substitute for STPS2L40AFN is selected by verifying compliance in the following areas:

• Technology: Schottky
• Voltage - DC Reverse (Vr) (Max): 40 V
• Current - Average Rectified (Io): 2 A
• Voltage - Forward (Vf) (Max) @ If: 430 mV @ 2 A
• Speed: Fast Recovery =< 500ns, > 200mA (Io)
• Current - Reverse Leakage @ Vr: 220 µA @ 40 V
• Mounting Type: Surface Mount
• Package / Case: DO-221AC, SMA Flat Leads
• Operating Temperature - Junction: 150°C
• RoHS and REACH compliance

Parameter Comparison

Engineering Selection Recommendations

The main part STPS2L40AFN is obsolete, and its substitute STPS2L40AF is active, in stock, and maintains identical electrical, mechanical, and compliance parameters. Both models hold ROHS3 and REACH certification and an MSL rating of 1 (Unlimited), ensuring suitability for immediate integration in designs previously utilizing STPS2L40AFN.

Frequently Asked Questions (FAQ)

Q: What qualifies STPS2L40AF as a direct substitute for STPS2L40AFN?
A: STPS2L40AF matches all electrical, mechanical, and compliance parameters specified for STPS2L40AFN, including voltage, current ratings, speed, leakage, package type, and certifications.

Q: Is there any difference in mounting or form factor between STPS2L40AFN and STPS2L40AF?
A: Both models utilize the DO-221AC SMA Flat Leads surface-mount package, ensuring mechanical compatibility.

Q: Are there any restrictions for substituting STPS2L40AF for STPS2L40AFN in existing assemblies?
A: There are no restrictions within the provided parameters; both diodes share the same form, fit, and function according to category-specific criteria.

Q: How do compliance and certifications affect selection for regulated environments?
A: Both STPS2L40AFN and STPS2L40AF are ROHS3 compliant and REACH unaffected, and feature an MSL rating of 1 (Unlimited), meeting requirements for regulated markets and environments.

Q: Is the forward voltage rating and reverse leakage current identical between the two diodes?
A: Yes. Both parts feature a maximum forward voltage of 430 mV @ 2A and maximum reverse leakage current of 220 µA @ 40V.

Q: Can the substitute part be used in all applications where the main part was previously installed?
A: Based strictly on the provided technical and compliance parameters, STPS2L40AF fulfills all requirements for substitution.