BAS40-04 Equivalent & Substitute Parts

Part Overview

The BAS40-04 is a Schottky diode array in a 1 Pair Series Connection configuration, manufactured by Taiwan Semiconductor Corporation. This component operates at a maximum reverse voltage of 40 V with an average rectified current of 200 mA per diode. The device is housed in a SOT-23 surface mount package and is classified as a small signal diode with a reverse recovery time of 5 ns. The BAS40-04 maintains Active product status and is ROHS3 compliant. Equivalent and substitute parts are identified to provide design flexibility, supply chain alternatives, and procurement options while maintaining electrical and mechanical compatibility.

Substiute Parts

BAS40-04
Taiwan Semiconductor CorporationIn Stock: 894171BAS40-04 Datasheet
BAS40-04
Current Part
BAS40S_R1_00001
Panjit International Inc.In Stock: 25663BAS40S_R1_00001 Datasheet
BAS40S_R1_00001
Similar

Key Parameters

Parameter Value Unit
Diode Configuration 1 Pair Series Connection
Technology Schottky
Voltage - DC Reverse (Vr) (Max) 40 V
Current - Average Rectified (Io) (per Diode) 200 mA
Voltage - Forward (Vf) (Max) @ If 1 V @ 40 mA
Speed Classification Small Signal ≤ 200mA (Io), Any Speed
Reverse Recovery Time (trr) 5 ns
Mounting Type Surface Mount
Package / Case TO-236-3, SC-59, SOT-23-3
Operating Temperature - Junction -65 to 125 °C
RoHS Status ROHS3 Compliant

Substitute Part Grouping Explanation

Substitute parts for the BAS40-04 are identified based on strict electrical and mechanical parameter matching. The primary substitution criteria are:

Critical Matching Parameters:

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

The BAS40S_R1_00001 manufactured by Panjit International Inc. meets all critical electrical specifications and package requirements, establishing it as a direct functional equivalent. Both components operate within the same voltage and current parameters, utilize identical Schottky technology, and are housed in the same SOT-23 surface mount package.

Parameter Comparison

Parameter BAS40-04 (Taiwan Semiconductor) BAS40S_R1_00001 (Panjit International) Unit
Diode Configuration 1 Pair Series Connection 1 Pair Series Connection
Technology Schottky Schottky
Voltage - DC Reverse (Vr) (Max) 40 40 V
Current - Average Rectified (Io) (per Diode) 200 200 mA
Voltage - Forward (Vf) (Max) @ If 1 @ 40 mA 1 @ 40 mA V
Speed Classification Small Signal ≤ 200mA (Io), Any Speed Small Signal ≤ 200mA (Io), Any Speed
Mounting Type Surface Mount Surface Mount
Package / Case TO-236-3, SC-59, SOT-23-3 TO-236-3, SC-59, SOT-23-3
Operating Temperature - Junction -65 to 125 -55 to 150 °C
RoHS Status ROHS3 Compliant ROHS3 Compliant
REACH Status REACH Unaffected REACH Unaffected

Engineering Selection Recommendations

Both the BAS40-04 and BAS40S_R1_00001 are Active product status components with full ROHS3 compliance and REACH Unaffected designation, confirming regulatory alignment for current and future applications. The components are electrically interchangeable across all specified operating parameters.

The BAS40-04 operates within a junction temperature range of -65°C to 125°C, while the BAS40S_R1_00001 extends this range to -55°C to 150°C. Selection between these parts depends on application temperature requirements. For applications requiring operation below -55°C, the BAS40-04 is the appropriate choice. For applications requiring operation above 125°C, the BAS40S_R1_00001 is suitable.

Both components are available in surface mount SOT-23 packaging. The BAS40-04 is supplied in standard packaging, while the BAS40S_R1_00001 is available in Tape & Reel format, which may influence procurement decisions based on assembly requirements and volume considerations.

Frequently Asked Questions (FAQ)

Q: Can the BAS40S_R1_00001 replace the BAS40-04 in all applications?

A: The BAS40S_R1_00001 is electrically equivalent to the BAS40-04 across all specified voltage, current, and switching parameters. Substitution is valid for applications operating within the overlapping temperature range of -55°C to 125°C. Applications requiring operation below -55°C require the BAS40-04.

Q: What are the key electrical differences between these parts?

A: The primary electrical specifications are identical: both operate at 40 V maximum reverse voltage, 200 mA average rectified current per diode, and 1 V maximum forward voltage at 40 mA. The operating temperature ranges differ, with the BAS40S_R1_00001 offering extended high-temperature capability.

Q: Are both parts available in the same package?

A: Both components use the TO-236-3, SC-59, SOT-23-3 surface mount package. The BAS40-04 is supplied in standard packaging, while the BAS40S_R1_00001 is available in Tape & Reel format. The physical package dimensions and pin configuration are identical.

Q: Do both parts meet current regulatory requirements?

A: Yes. Both the BAS40-04 and BAS40S_R1_00001 are ROHS3 compliant and REACH Unaffected, confirming compliance with current environmental and regulatory standards.

Q: What is the reverse recovery time specification for the BAS40S_R1_00001?

A: The reverse recovery time for the BAS40S_R1_00001 is not provided in the available technical parameters. The BAS40-04 specifies a reverse recovery time of 5 ns.

Q: Which part should be selected for high-temperature applications?

A: For applications requiring junction temperatures above 125°C, the BAS40S_R1_00001 is suitable, as it operates to 150°C. The BAS40-04 is limited to 125°C maximum junction temperature.

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