DSB0.2A40 Equivalent & Substitute Parts Reference

Part Overview

The DSB0.2A40 from Microchip Technology is a Schottky diode for rectification applications within the “Diodes, Rectifiers” category. The device supports a maximum reverse voltage of 20 V and a rectified average current of 200 mA, housed in a DO-35 (DO-204AH) axial package for through-hole mounting. Its product status is “Active,” indicating continued availability, but requirements such as RoHS compliance or extended inventory needs may necessitate the identification of substitute models.

Substiute Parts

DSB0.2A40

Microchip TechnologyIn Stock: 809DSB0.2A40 Datasheet

Current PartRFQ

BAT42

STMicroelectronicsIn Stock: 45306BAT42 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DSB0.2A40 are determined strictly by matching the key electrical and mechanical parameters, including: diode technology, maximum reverse voltage, average rectified current, forward voltage at rated current, reverse leakage current, capacitance, mounting type, package/case, and operating temperature range. Compliance and certifications are also included as necessary selection criteria where required.

Parameter Comparison

Engineering Selection Recommendations

Selection between DSB0.2A40 and BAT42 should be based on product status and compliance requirements. Both parts are “Active,” available in-stock, and offered in the same DO-35 through-hole package with matching basic electrical ratings. For applications requiring RoHS compliance, BAT42 is suitable as it is ROHS3 Compliant, while DSB0.2A40 is RoHS non-compliant. Both parts meet the provided operating temperature range and mounting requirements.

Frequently Asked Questions (FAQ)

Q1: Are DSB0.2A40 and BAT42 interchangeable in the same PCB footprint?
Both DSB0.2A40 and BAT42 use the DO-35 (DO-204AH) axial through-hole package, allowing direct footprint compatibility for mechanical mounting.

Q2: What are the essential criteria when selecting a substitute in the “Diodes, Rectifiers” category?
Key criteria include diode technology, maximum reverse voltage, average rectified current, forward voltage at rated current, reverse leakage current, capacitance, mounting method, package/case, operating temperature range, and compliance certifications.

Q3: Is there any difference in environmental compliance between DSB0.2A40 and BAT42?
DSB0.2A40 is RoHS non-compliant. BAT42 is ROHS3 Compliant, meeting stricter environmental requirements.

Q4: How do forward voltage and reverse leakage compare between these substitute diodes?
DSB0.2A40 has a lower forward voltage (510 mV @ 200mA) compared to BAT42 (1 V @ 200mA). BAT42 offers significantly lower reverse leakage current (500 nA @ 25 V) than DSB0.2A40 (5 µA @ 40 V).

Q5: Is the operating temperature range equivalent for both models?
Both support an operating junction temperature range of -65°C to +125°C.

Q6: Does capacitance impact substitution between these models?
The capacitance values differ (50 pF for DSB0.2A40 vs 7 pF for BAT42) and should be assessed based on the application’s signal requirements. Always consider this parameter as specified.

Q7: Can inventory availability affect the decision to substitute?
Both parts are listed as “Active” with available stock, which permits substitution based on inventory without affecting design compatibility.