STPS3170AFN Equivalent & Substitute Parts Reference

Part Overview

STPS3170AFN is a Schottky Diode, Rectifier with a DC Reverse Voltage (Vr) rating of 170 V and an Average Rectified Current (Io) of 3A, packaged in a DO-221AC, SMA Flat Leads, surface mount configuration. The forward voltage drop (Vf) is 820 mV at 3A, and it offers fast recovery characteristics. The product is currently listed as obsolete, making it essential to identify substitute models with matching parameters for ongoing designs and maintenance.

Substiute Parts

STPS3170AFN

STMicroelectronicsIn Stock: 18391STPS3170AFN Datasheet

Current PartRFQ

STPS3170AF

STMicroelectronicsIn Stock: 29418STPS3170AF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts are selected exclusively on an exact match or compatibility across these electrical and mechanical parameters: technology (Schottky), voltage rating (170 V max DC reverse), current rating (3A average rectified), forward voltage drop (820 mV max @ 3A), recovery speed, reverse leakage, mounting type (surface mount), and package type (SMA Flat Leads/DO-214AC/DO-221AC). Formal compliance certifications (RoHS3, MSL 1, REACH) and product status are included for verifiable regulatory equivalence. Only parts meeting all these criteria are grouped as substitutes.

Parameter Comparison

Engineering Selection Recommendations

Selection of substitute Schottky diodes, rectifiers should be based strictly on matching product status and compliance criteria. The main part, STPS3170AFN, is obsolete. The substitute, STPS3170AF, is active and fully matches regulatory standards including RoHS3 compliance, MSL 1, and REACH unaffected status. Use the substitute part only if the listed compliance and certifications meet the end-application requirements.

Frequently Asked Questions (FAQ)

Q1: What criteria define a substitute for the STPS3170AFN diode?
A1: Substitute criteria are exact matches for technology (Schottky), voltage rating (170 V), current rating (3A), forward voltage drop (820 mV @ 3A), speed, reverse leakage, mounting type (surface mount), package type (SMA Flat Leads), and regulatory certifications.

Q2: Are there any packaging differences between STPS3170AFN and STPS3170AF?
A2: STPS3170AFN uses DO-221AC, SMA Flat Leads, while STPS3170AF uses DO-214AC, SMA Flat Leads. Both are surface mount configurations within the Schottky diode, rectifier category.

Q3: Does the substitute part meet the same regulatory compliance?
A3: Both STPS3170AFN and STPS3170AF are RoHS3 compliant, have MSL 1 rating, and are REACH unaffected.

Q4: Can the substitute be used identically in designs originally targeting the obsolete part?
A4: The substitute is matched exclusively on the provided electrical parameters and compliance certificates according to category requirements for Schottky diode rectifiers.

Q5: What is the significance of product status in selecting a substitute?
A5: Obsolete status of STPS3170AFN requires that only active parts with identical compliance and certifications be considered as substitutes for guaranteed availability and engineering standard matching.