BAS21 Equivalent & Substitute Parts Reference

Part Overview

The BAS21 by Taiwan Semiconductor Corporation is a small signal switching diode categorized under Diodes, Rectifiers, featuring a maximum reverse voltage of 250 V and an average rectified current of 200 mA in a SOT-23 surface mount package. The device is RoHS3 compliant and REACH unaffected, with an active product status. Finding alternative models is necessary to ensure uninterrupted production and design flexibility, especially in cases of inventory shortages or sourcing constraints.

Substiute Parts

BAS21

Taiwan Semiconductor CorporationIn Stock: 2405174BAS21 Datasheet

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BAS21

Taiwan Semiconductor CorporationIn Stock: 2405174BAS21 Datasheet

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BAS21_R1_00001

Panjit International Inc.In Stock: 20229BAS21_R1_00001 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts are identified strictly by matching essential electrical and mechanical parameters relevant to Diodes, Rectifiers. These substitution criteria include: maximum reverse voltage (Vr), average rectified current (Io), forward voltage (Vf) at specified current, reverse recovery time (trr), reverse leakage current at specified voltage, capacitance at specified test conditions, package type, mounting type, operating temperature range, RoHS compliance, and REACH status. Only parts matching these critical parameters are included as substitutes.

Parameter Comparison

Engineering Selection Recommendations

Both BAS21 by Taiwan Semiconductor Corporation and BAS21_R1_00001 by Panjit International Inc. possess an "Active" product status and are ROHS3 compliant and REACH unaffected. These compliance features are appropriate for use in environments requiring certified and current product standards according to the provided data.

Frequently Asked Questions (FAQ)

Q1: What parameters must be considered when substituting the BAS21 diode?
Only the explicit parameters provided above are considered: reverse voltage (Vr), average current (Io), forward voltage (Vf) at specified current, reverse recovery time (trr), reverse leakage current, capacitance, package/case, mounting type, operating temperature, RoHS and REACH status, and product status.

Q2: Are BAS21 and BAS21_R1_00001 compatible in footprint and assembly?
Both are specified as SOT-23 (TO-236-3, SC-59, SOT-23-3) surface mount packages, allowing interchangeability in PCB footprint within the provided parameters.

Q3: Does product compliance differ between these diode substitutes?
Both the BAS21 and BAS21_R1_00001 are ROHS3 compliant and REACH unaffected.

Q4: Can the BAS21_R1_00001 be used as a substitute for the BAS21 regarding electrical and mechanical characteristics?
Within the specified parameters—current rating, package, mounting method, and provided compliance certifications—these parts may be considered equivalent in controlled substitution contexts. Only differences explicitly listed in the parameter table (such as reverse voltage rating and capacitance) apply.

Q5: What supply chain advantages are there in considering substitute diodes?
Having pre-approved equivalents such as BAS21_R1_00001 ensures continuity in sourcing and inventory management, provided all critical parameters meet the application's requirements as listed.