BAT54AW Equivalent & Substitute Parts

Part Overview

The BAT54AW is an active Schottky diode array manufactured by SMC Diode Solutions, configured as a 1 pair common anode arrangement rated for 30 V DC reverse voltage and 100 mA average rectified current per diode. The device is packaged in SC-70, SOT-323 surface mount configuration and is RoHS3 compliant with unlimited moisture sensitivity level (MSL 1). This component is used in applications requiring low forward voltage drop, fast switching characteristics, and compact form factor. Equivalent substitute parts are identified based on matching electrical specifications, package compatibility, and compliance certifications.

Key Parameters

Parameter	Value
Diode Configuration	1 Pair Common Anode
Technology	Schottky
Voltage - DC Reverse (Vr) (Max)	30 V
Current - Average Rectified (Io) (per Diode)	100 mA
Voltage - Forward (Vf) (Max) @ If	1 V @ 100 mA
Reverse Recovery Time (trr)	5 ns
Package / Case	SC-70, SOT-323
Mounting Type	Surface Mount
RoHS Status	RoHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the BAT54AW are identified through parametric equivalence based on the following critical specifications:

Electrical Parameters:

Diode configuration: 1 pair common anode
Technology: Schottky
Maximum reverse voltage: 30 V
Maximum average rectified current: 100 mA per diode
Maximum forward voltage: 1 V @ 100 mA
Reverse recovery time: 5 ns

Mechanical Parameters:

Package type: SC-70, SOT-323
Mounting type: Surface mount

Compliance Parameters:

RoHS3 compliance
MSL rating: 1 (Unlimited)

The CMSSH-3A TR PBFREE manufactured by Central Semiconductor Corp meets all electrical and mechanical requirements for direct substitution with the BAT54AW. Both devices share identical diode configuration, technology, voltage ratings, current ratings, forward voltage characteristics, and reverse recovery time. Both are packaged in SC-70, SOT-323 surface mount configuration and maintain RoHS3 compliance with MSL 1 rating.

Parameter Comparison

Parameter	BAT54AW (SMC Diode Solutions)	CMSSH-3A TR PBFREE (Central Semiconductor Corp)
Diode Configuration	1 Pair Common Anode	1 Pair Common Anode
Technology	Schottky	Schottky
Voltage - DC Reverse (Vr) (Max)	30 V	30 V
Current - Average Rectified (Io) (per Diode)	100 mA	100 mA
Voltage - Forward (Vf) (Max) @ If	1 V @ 100 mA	1 V @ 100 mA
Reverse Recovery Time (trr)	5 ns	5 ns
Speed Classification	Small Signal ≤ 200mA (Io), Any Speed	Small Signal ≤ 200mA (Io), Any Speed
Package / Case	SC-70, SOT-323	SC-70, SOT-323
Mounting Type	Surface Mount	Surface Mount
RoHS Status	RoHS3 Compliant	RoHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)
ECCN	EAR99	EAR99
HTSUS Code	8541.10.0070	8541.10.0070

Engineering Selection Recommendations

The CMSSH-3A TR PBFREE is a direct parametric equivalent to the BAT54AW and is suitable for substitution in applications where the BAT54AW is specified. Both parts maintain identical electrical performance characteristics, package compatibility, and regulatory compliance status.

Selection Criteria:

Both the BAT54AW and CMSSH-3A TR PBFREE are active products with RoHS3 compliance and EAR99 export classification. The CMSSH-3A TR PBFREE is supplied in Tape & Reel (TR) packaging format, which may be preferred for automated assembly operations. The BAT54AW is available in higher inventory quantity (125,300 pcs) compared to the CMSSH-3A TR PBFREE (6,262 pcs), which may influence lead time and availability considerations.

Both devices operate within the same temperature range parameters and maintain equivalent reverse leakage characteristics within acceptable engineering tolerances for the specified application class.

Frequently Asked Questions (FAQ)

Q: Can the CMSSH-3A TR PBFREE be used as a direct replacement for the BAT54AW?

A: Yes. The CMSSH-3A TR PBFREE meets all electrical and mechanical specifications of the BAT54AW, including diode configuration, voltage ratings, current ratings, forward voltage characteristics, reverse recovery time, package type, and compliance certifications.

Q: Are there differences in packaging between these parts?

A: Both parts use the SC-70, SOT-323 surface mount package. The primary packaging difference is that the CMSSH-3A TR PBFREE is supplied in Tape & Reel (TR) format, while the BAT54AW packaging format is not specified in the provided data. This distinction affects handling and assembly processes but does not impact electrical performance or pin compatibility.

Q: Do both parts have the same moisture sensitivity rating?

A: Yes. Both the BAT54AW and CMSSH-3A TR PBFREE carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions for storage and handling.

Q: Are both parts RoHS3 compliant?

A: Yes. Both the BAT54AW and CMSSH-3A TR PBFREE are RoHS3 compliant. The CMSSH-3A TR PBFREE is marked as PBFREE (lead-free), confirming compliance with RoHS directives.

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

A: The BAT54AW specifies 2 µA @ 25 V reverse leakage current, while the CMSSH-3A TR PBFREE specifies 500 nA @ 25 V. The CMSSH-3A TR PBFREE exhibits lower reverse leakage current, which represents improved performance characteristics within the same application class.

Q: Are the operating temperature ranges identical?

A: The BAT54AW specifies a maximum junction temperature of 125°C. The CMSSH-3A TR PBFREE specifies an operating temperature range of -60°C to 150°C. Both parts are suitable for standard industrial and commercial temperature environments.

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