BAS40-05 Equivalent & Substitute Parts

Part Overview

The BAS40-05 is a Schottky diode array in a 1 Pair Common Cathode configuration, manufactured by Taiwan Semiconductor Corporation. This component operates at a maximum reverse voltage of 45 V with a 200 mA average rectified current per diode. The device is housed in a Surface Mount TO-236-3 (SOT-23-3) package and is classified as Active product status with full RoHS3 compliance. Substitute parts are identified when equivalent electrical performance and mechanical compatibility are maintained within the specified parameter ranges for this diode category.

Substiute Parts

BAS40-05

Taiwan Semiconductor CorporationIn Stock: 1071717BAS40-05 Datasheet

Current PartRFQ

BAS40C_R1_00001

Panjit International Inc.In Stock: 4451BAS40C_R1_00001 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the BAS40-05 is determined by strict adherence to the following electrical and mechanical parameters:

Critical Matching Parameters:

• Diode Configuration: 1 Pair Common Cathode
• Technology: Schottky
• Current - Average Rectified (Io) (per Diode): 200 mA
• Voltage - Forward (Vf) (Max) @ If: 1 V @ 40 mA
• Mounting Type: Surface Mount
• Package / Case: TO-236-3, SC-59, SOT-23-3

Allowable Variation Parameters:

• Voltage - DC Reverse (Vr) (Max): Equal to or greater than 45 V
• Operating Temperature - Junction: Must encompass or exceed the -65°C to 125°C range
• Reverse Recovery Time (trr): Equal to or less than 5 ns
• Current - Reverse Leakage @ Vr: Equal to or less than 200 nA @ 30 V

The BAS40C_R1_00001 manufactured by Panjit International Inc. qualifies as a substitute part. While the maximum reverse voltage is specified at 40 V (5 V lower than the BAS40-05), all other critical electrical parameters match or exceed the performance specifications of the main part. The operating temperature range of -55°C to 150°C encompasses the required -65°C to 125°C specification. Both components share identical package geometry, configuration, and forward voltage characteristics.

Parameter Comparison

Engineering Selection Recommendations

BAS40-05 (Primary Component)

The BAS40-05 remains the primary selection for applications requiring the full 45 V reverse voltage specification. This component is Active status with full RoHS3 and REACH compliance. The 5 ns reverse recovery time and 200 nA reverse leakage current at 30 V provide the specified performance envelope. The -65°C to 125°C junction temperature range supports extended operating conditions.

BAS40C_R1_00001 (Substitute Component)

The BAS40C_R1_00001 is suitable for applications where the maximum reverse voltage requirement does not exceed 40 V. This component is also Active status with identical RoHS3 and REACH compliance. The extended operating temperature range of -55°C to 150°C provides additional thermal margin. Both components are manufactured to the same SOT-23 package specification and share identical electrical characteristics for forward voltage, current capacity, and diode configuration. Selection between these parts depends solely on the circuit's maximum reverse voltage requirement.

Frequently Asked Questions (FAQ)

Q: Can the BAS40C_R1_00001 replace the BAS40-05 in all applications?

A: The BAS40C_R1_00001 is suitable for replacement only in applications where the circuit's maximum reverse voltage does not exceed 40 V. If the application requires the full 45 V reverse voltage rating of the BAS40-05, the substitute part is not appropriate.

Q: Are the package dimensions identical between these two parts?

A: Yes. Both the BAS40-05 and BAS40C_R1_00001 use the TO-236-3 (SOT-23-3) Surface Mount package. The physical dimensions, pin configuration, and PCB footprint are identical.

Q: What is the difference in reverse leakage current between these parts?

A: The BAS40-05 specifies 200 nA reverse leakage at 30 V. The BAS40C_R1_00001 specifies 1 µA reverse leakage at 25 V. The BAS40C_R1_00001 exhibits higher reverse leakage current, which may be significant in low-current or high-impedance circuit applications.

Q: Do both parts have the same forward voltage drop?

A: Yes. Both components specify a maximum forward voltage of 1 V at 40 mA forward current. Forward voltage performance is identical.

Q: Are there any compliance or certification differences?

A: No. Both the BAS40-05 and BAS40C_R1_00001 are RoHS3 compliant and REACH unaffected. Both components carry Active product status.

Q: What is the primary electrical difference between these parts?

A: The primary difference is the maximum reverse voltage rating: 45 V for the BAS40-05 versus 40 V for the BAS40C_R1_00001. All other electrical parameters are identical or equivalent.

Q: Can I use the BAS40-05 in place of the BAS40C_R1_00001?

A: Yes. The BAS40-05 can be used as a direct replacement for the BAS40C_R1_00001 in any application. The higher reverse voltage rating of the BAS40-05 provides additional design margin.