BAT54 Schottky Diode Equivalent & Substitute Parts

Part Overview

The BAT54 is a surface mount Schottky diode manufactured by Taiwan Semiconductor Corporation, designed for small signal rectification applications. This component operates at 30V reverse voltage with a 200mA average rectified current rating and is housed in a SOT-23 package. The BAT54 maintains Active product status and is widely used in switching and protection circuits where fast recovery time and low forward voltage drop are required. Substitute parts are identified to provide design flexibility, supply chain alternatives, and equivalent performance across different manufacturer sources while maintaining identical electrical and mechanical specifications.

Substiute Parts

BAT54

Taiwan Semiconductor CorporationIn Stock: 605445BAT54 Datasheet

Current PartRFQ

BAT54

Good-Ark SemiconductorIn Stock: 605447BAT54 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BAT54 Schottky diode is determined by strict equivalence across the following critical parameters:

Electrical Specifications:

• Voltage - DC Reverse (Vr) (Max): 30 V
• Current - Average Rectified (Io): 200 mA
• Voltage - Forward (Vf) (Max) @ If: 1 V @ 100 mA
• Reverse Recovery Time (trr): 5 ns
• Current - Reverse Leakage @ Vr: 2 µA @ 25 V
• Capacitance @ Vr, F: 10 pF @ 1V, 1MHz

Mechanical Specifications:

• Package / Case: TO-236-3, SC-59, SOT-23-3
• Mounting Type: Surface Mount
• Technology: Schottky

Compliance Requirements:

• RoHS3 Compliant
• REACH Unaffected

Substitute parts must match all electrical parameters and package specifications to ensure direct replacement capability without circuit redesign or board layout modification.

Parameter Comparison

Engineering Selection Recommendations

Both BAT54 variants from Taiwan Semiconductor Corporation and Good-Ark Semiconductor are functionally equivalent for direct substitution in applications requiring a 30V, 200mA Schottky diode in SOT-23 packaging. Both components maintain Active product status and satisfy RoHS3 and REACH compliance requirements.

The Good-Ark Semiconductor BAT54 offers an extended operating temperature range of -65°C to 150°C compared to the Taiwan Semiconductor Corporation variant at -55°C to 125°C. This extended range provides additional thermal margin for applications operating in extreme temperature environments. Both parts are supplied in Surface Mount configuration with identical electrical performance characteristics.

Selection between these substitutes should be based on supply chain availability, packaging format preference (Cut Tape or Digi-Reel), and application temperature requirements. No circuit modification is required when substituting between these parts.

Frequently Asked Questions (FAQ)

Q: Can the BAT54 from Good-Ark Semiconductor directly replace the BAT54 from Taiwan Semiconductor Corporation?

A: Yes. Both components share identical electrical specifications across all critical parameters including reverse voltage, forward current, forward voltage drop, reverse recovery time, reverse leakage current, and junction capacitance. Both are packaged in SOT-23 surface mount configuration and comply with RoHS3 and REACH requirements.

Q: What are the key electrical parameters that define BAT54 substitution compatibility?

A: The critical parameters are: 30V maximum reverse voltage, 200mA average rectified current, 1V maximum forward voltage at 100mA, 5ns reverse recovery time, 2µA reverse leakage current at 25V, and 10pF junction capacitance at 1V and 1MHz. Any substitute must match all these specifications.

Q: Are there package or mounting differences between the two BAT54 variants?

A: No. Both variants use identical SOT-23 surface mount packaging (TO-236-3, SC-59, SOT-23-3 designations). Board layout and assembly processes require no modification when substituting between manufacturers.

Q: What is the difference in operating temperature range between these parts?

A: The Taiwan Semiconductor Corporation BAT54 operates from -55°C to 125°C junction temperature. The Good-Ark Semiconductor BAT54 operates from -65°C to 150°C. The extended range of the Good-Ark variant provides additional thermal margin for extreme environment applications.

Q: Do both BAT54 variants meet the same compliance standards?

A: Yes. Both components are ROHS3 Compliant and REACH Unaffected, meeting identical regulatory requirements for electronic component use.

Q: What packaging formats are available for the Good-Ark Semiconductor BAT54?

A: The Good-Ark Semiconductor BAT54 is supplied in Cut Tape (CT) and Digi-Reel packaging formats, providing flexibility for different procurement and assembly workflows.