Equivalent & Substitute Parts for BAT54A-HF – Comchip Technology Diode Array, Schottky, SOT-23-3

Part Overview

BAT54A-HF by Comchip Technology is an active diode array designed for use in rectifier and switching applications. It utilizes Schottky technology and features a 1 pair common anode configuration within a compact, industry-standard SOT-23-3 (TO-236-3, SC-59) surface-mount package. Sourcing alternative models is necessary in scenarios of procurement limitations, supply chain disruptions, or multi-sourcing requirements, especially when identical parametric and regulatory compliance is mandatory within the diodes, rectifiers category.

Key Parameters

Manufacturer Part Number	Manufacturer	Diode Configuration	Technology	Voltage - DC Reverse (Vr) (Max)	Current - Average Rectified (Io) (per Diode)	Voltage - Forward (Vf) (Max) @ If	Reverse Recovery Time (trr)	Current - Reverse Leakage @ Vr	Operating Temperature - Junction	Mounting Type	Package / Case	Supplier Device Package	RoHS Status	Part Status
BAT54A-HF	Comchip Technology	1 Pair Common Anode	Schottky	30 V	200mA	1 V @ 100 mA	5 ns	2 µA @ 25 V	125°C (Max)	Surface Mount	TO-236-3, SC-59, SOT-23-3	SOT-23-3	ROHS3 Compliant	Active

Substitute Part Grouping Explanation

Substitute selection is limited to components with matching key parameters: diode configuration, Schottky technology, maximum reverse voltage, forward voltage drop at specified current, average rectified current, reverse recovery time, reverse leakage current, operating temperature range, mounting type, and package. Only parts fulfilling all these parametric requirements and regulatory status such as RoHS3 compliance are considered equivalent under the diodes, rectifiers category.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Diode Configuration	Technology	Voltage - DC Reverse (Vr) (Max)	Current - Average Rectified (Io) (per Diode)	Voltage - Forward (Vf) (Max) @ If	Reverse Recovery Time (trr)	Current - Reverse Leakage @ Vr	Operating Temperature - Junction	Mounting Type	Package / Case	Supplier Device Package	RoHS Status	Part Status
BAT54A-HF	Comchip Technology	1 Pair Common Anode	Schottky	30 V	200mA	1 V @ 100 mA	5 ns	2 µA @ 25 V	125°C (Max)	Surface Mount	TO-236-3, SC-59, SOT-23-3	SOT-23-3	ROHS3 Compliant	Active
BAT54A	Taiwan Semiconductor Corporation	1 Pair Common Anode	Schottky	30 V	200mA (DC)	1 V @ 100 mA	5 ns	2 µA @ 25 V	-55°C ~ 125°C	Surface Mount	TO-236-3, SC-59, SOT-23-3	SOT-23	ROHS3 Compliant	Active
BAT54A RFG	Taiwan Semiconductor Corporation	1 Pair Common Anode	Schottky	30 V	200mA (DC)	1 V @ 100 mA	5 ns	2 µA @ 25 V	-55°C ~ 125°C	Surface Mount	TO-236-3, SC-59, SOT-23-3	SOT-23	ROHS3 Compliant	Active
BAT54C RFG	Taiwan Semiconductor Corporation	1 Pair Common Cathode	Schottky	30 V	200mA (DC)	1 V @ 100 mA	5 ns	2 µA @ 25 V	-55°C ~ 125°C	Surface Mount	TO-236-3, SC-59, SOT-23-3	SOT-23	ROHS3 Compliant	Active

Engineering Selection Recommendations

All listed substitute components are in active status and comply with ROHS3 requirements. Those with matching diode configuration (1 Pair Common Anode for BAT54A-HF, BAT54A, BAT54A RFG) allow direct substitution when regulatory and package compatibility is required. BAT54C RFG offers the same key electrical parameters but features a common cathode configuration, which is suitable only for applications where this arrangement matches the circuit topology.

Frequently Asked Questions (FAQ)

Q1: What determines the equivalence between BAT54A-HF and its substitutes?
Matching diode configuration, Schottky technology, maximum reverse voltage, forward voltage at specified current, average rectified current, reverse recovery time, leakage current, operating temperature, mounting type, and package.

Q2: Are all substitutes surface-mount and compatible with automated placement processes?
All substitutes use the surface-mount SOT-23 package or equivalent TO-236-3/SC-59 case.

Q3: Does ROHS3 compliance extend across all substitute part numbers?
ROHS3 compliance is specified for all listed parts.

Q4: Can BAT54C RFG be used interchangeably with BAT54A-HF?
BAT54C RFG features a common cathode configuration. It is interchangeable only where such a configuration is applicable to the circuit’s requirements.

Q5: Are there differences in forward voltage or reverse leakage between these parts?
All listed substitute parts have the same specified voltage drop and reverse leakage current.

Q6: Is there package or footprint variation among the substitutes?
All listed parts are packaged in SOT-23-3 or equivalent, suitable for designs using BAT54A-HF. Always confirm package suffix compatibility for pick-and-place equipment alignment.

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