Equivalent & Substitute Parts for STPS3150AFN Diode

Part Overview

STPS3150AFN is a Schottky rectifier diode manufactured by STMicroelectronics, categorized under Diodes, Rectifiers. It features a maximum DC reverse voltage of 150 V, an average rectified current of 3 A, and is designed for fast recovery operation with a maximum forward voltage drop of 820 mV at 3 A. The product has reached obsolete status, necessitating the identification of alternative models for ongoing engineering requirements. Substitution is typically based on maintaining equivalent electrical characteristics and appropriate package compatibility.

Substiute Parts

STPS3150AFN

STMicroelectronicsIn Stock: 21169STPS3150AFN Datasheet

Current PartRFQ

STPS3150UF

STMicroelectronicsIn Stock: 55482STPS3150UF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for STPS3150AFN are grouped strictly based on identical or equivalent key parameters: diode technology (Schottky), maximum DC reverse voltage, average rectified current, maximum forward voltage at rated current, speed classification, reverse leakage current at rated voltage, mounting type, and compliance certifications. Mechanical compatibility is maintained through surface mount packaging and supplier device package designations. Only electrical and mechanical parameters explicitly listed are evaluated for determining equivalence.

Key parameters for substitution:

• Schottky technology
• 150 V maximum DC reverse voltage
• 3 A average rectified current
• 820 mV maximum forward voltage at 3 A
• Fast recovery performance
• 2 µA maximum reverse leakage at 150 V
• Surface mount design
• ROHS3 and REACH compliance
• Package and supplier device package compatibility

Parameter Comparison

Engineering Selection Recommendations

STPS3150AFN has been designated as obsolete. STPS3150UF is available as an active substitute, with equivalent electrical ratings and certifications including ROHS3 and REACH compliance. Both models are classified at MSL 1, denoting unlimited shelf life in ambient conditions. Selection of the substitute part is verified solely by matching electrical, mechanical, and compliance specifications provided.

Frequently Asked Questions (FAQ)

Q1: What are the critical parameters for substituting STPS3150AFN?
A1: Key substitution parameters are diode technology, maximum DC reverse voltage, average rectified current, maximum forward voltage at specified current, reverse leakage current, speed classification, mounting type, package and supplier device package designations, and compliance status.

Q2: Is STPS3150UF fully compatible with STPS3150AFN?
A2: STPS3150UF matches the electrical specifications, compliance certifications, and is designed for surface-mount applications. Package style is noted as DO-221AA, SMB Flat Leads compared to DO-221AC, SMA Flat Leads, so mechanical fit should be matched to board layout requirements.

Q3: Are there differences in environmental or regulatory compliance?
A3: Both parts are ROHS3 compliant and REACH unaffected. Moisture Sensitivity Level (MSL) is 1 (Unlimited) for both.

Q4: What considerations are necessary regarding package type?
A4: STPS3150AFN uses SMAflat Notch, DO-221AC, and STPS3150UF uses SMBflat, DO-221AA. The mounting processes are similar but package dimensions and footprints must conform to PCB pad design.

Q5: Why is part substitution necessary for STPS3150AFN?
A5: The component is obsolete. To maintain design continuity, selection of a substitute with matching critical characteristics and compliance is required.