BAT54AT-HF Equivalent & Substitute Parts

Part Overview

The BAT54AT-HF is a Schottky diode array manufactured by Comchip Technology, configured as 1 pair common anode with a maximum reverse voltage of 30 V and average rectified current of 200 mA per diode. The device is housed in a surface mount SOT-523 package and is classified as a small signal diode suitable for high-speed switching applications. This part is currently in active production status with 1088 pieces available in inventory.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility are required due to component availability, supply chain considerations, or design flexibility within the same product category.

Substiute Parts

BAT54AT-HF

Comchip TechnologyIn Stock: 1128BAT54AT-HF Datasheet

Current PartRFQ

BAT54AT-7-F

Diodes IncorporatedIn Stock: 23481BAT54AT-7-F Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BAT54AT-HF is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Diode configuration: 1 Pair Common Anode
• Technology: Schottky
• Maximum reverse voltage: 30 V
• Average rectified current per diode: 200 mA (DC)
• Forward voltage: 1 V @ 100 mA
• Reverse recovery time: 5 ns
• Reverse leakage current: 2 µA @ 25 V

Mechanical Equivalence Criteria:

• Package type: SOT-523
• Mounting type: Surface Mount

Compliance Criteria:

• RoHS3 compliance
• Moisture sensitivity level: 1 (Unlimited)

The BAT54AT-7-F from Diodes Incorporated meets all electrical and mechanical equivalence requirements and maintains full regulatory compliance. Substitution is valid where these parameters are satisfied.

Parameter Comparison

Engineering Selection Recommendations

Both the BAT54AT-HF and BAT54AT-7-F are active production components with full ROHS3 compliance and unlimited moisture sensitivity rating. The BAT54AT-7-F offers an extended lower operating temperature range of -65°C compared to the BAT54AT-HF at -55°C, providing additional thermal margin in applications requiring operation at lower junction temperatures. Both devices are electrically and mechanically equivalent across all specified parameters and are suitable for direct substitution in SOT-523 surface mount applications requiring Schottky diode array functionality at 30 V and 200 mA ratings.

Frequently Asked Questions (FAQ)

Q: Can BAT54AT-7-F replace BAT54AT-HF in existing designs?

A: Yes. The BAT54AT-7-F is electrically and mechanically equivalent to the BAT54AT-HF. Both devices share identical diode configuration, voltage ratings, current ratings, forward voltage characteristics, reverse recovery time, and reverse leakage specifications. Both are packaged in SOT-523 surface mount and maintain ROHS3 compliance with unlimited moisture sensitivity rating.

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

A: The BAT54AT-HF operates from -55°C to 125°C junction temperature. The BAT54AT-7-F operates from -65°C to 125°C junction temperature. The BAT54AT-7-F provides 10°C additional margin at the lower temperature extreme.

Q: Are there packaging differences between BAT54AT-HF and BAT54AT-7-F?

A: Both devices use the SOT-523 surface mount package. The BAT54AT-HF is supplied in standard packaging, while the BAT54AT-7-F is supplied in Tape & Reel (TR) format. Both are compatible with automated assembly processes.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both the BAT54AT-HF and BAT54AT-7-F are ROHS3 compliant with moisture sensitivity level 1 (unlimited). Both carry ECCN EAR99 classification and HTSUS code 8541.10.0070.

Q: What are the critical electrical parameters for substitution?

A: Substitution is valid when the following parameters match: 1 Pair Common Anode configuration, Schottky technology, 30 V maximum reverse voltage, 200 mA average rectified current per diode, 1 V forward voltage at 100 mA, 5 ns reverse recovery time, and 2 µA reverse leakage current at 25 V.