BAT54QBZ Equivalent & Substitute Parts

Part Overview

The BAT54QBZ is a Schottky diode manufactured by Nexperia USA Inc., rated for 30 V DC reverse voltage and 200 mA average rectified current. This component is packaged in a 3-XDFN Exposed Pad surface mount configuration with wettable flank technology. The BAT54QBZ is classified as obsolete, necessitating identification of active equivalent alternatives for new designs and ongoing production requirements. Substitute parts maintain identical electrical performance characteristics while offering active product status and improved availability.

Substiute Parts

BAT54QBZ

Nexperia USA Inc.In Stock: 1180BAT54QBZ Datasheet

Current PartRFQ

BAT54QB-QZ

Nexperia USA Inc.In Stock: 6201BAT54QB-QZ Datasheet

MFR RecommendedRFQ

BAT54QC-QZ

Nexperia USA Inc.In Stock: 5838BAT54QC-QZ Datasheet

Parametric EquivalentRFQ

BAT54QB-QZ

Nexperia USA Inc.In Stock: 6201BAT54QB-QZ Datasheet

MFR RecommendedRFQ

BAT54QC-QZ

Nexperia USA Inc.In Stock: 5838BAT54QC-QZ Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BAT54QBZ is determined by equivalence across the following critical electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Voltage - DC Reverse (Vr) (Max): 30 V
• Current - Average Rectified (Io): 200 mA
• Voltage - Forward (Vf) (Max) @ If: 800 mV @ 100 mA
• Reverse Recovery Time (trr): 5 ns
• Current - Reverse Leakage @ Vr: 2 µA @ 25 V
• Capacitance @ Vr, F: 10 pF @ 1 V, 1 MHz
• Operating Temperature - Junction: 150°C

Mechanical Equivalence Criteria:

• Mounting Type: Surface Mount, Wettable Flank
• Package / Case: 3-XDFN Exposed Pad
• Technology: Schottky

Compliance Criteria:

• RoHS Status: ROHS3 Compliant
• REACH Status: REACH Unaffected

Substitute parts are grouped into two categories: MFR Recommended (identical package DFN1110D-3) and Parametric Equivalent (alternative package DFN1412D-3). Both categories maintain full electrical equivalence and compliance requirements.

Parameter Comparison

Engineering Selection Recommendations

BAT54QB-QZ is the primary substitute for BAT54QBZ applications. This part maintains identical electrical specifications and package configuration (DFN1110D-3). The BAT54QB-QZ is active in production status with higher inventory availability (6101 pcs vs. 1096 pcs). Both parts are ROHS3 compliant and REACH unaffected. The BAT54QB-QZ carries automotive grade qualification (AEC-Q100) and is supplied in Tape & Reel packaging. The moisture sensitivity level differs (MSL 3 vs. MSL 1), requiring appropriate handling protocols during storage and assembly.

BAT54QC-QZ is a parametric equivalent substitute with identical electrical performance. This part uses an alternative package variant (DFN1412D-3) while maintaining the same 3-XDFN Exposed Pad footprint classification. The BAT54QC-QZ is active in production with substantial inventory (5790 pcs). This option is suitable for applications where package variant compatibility is confirmed. Like BAT54QB-QZ, it carries automotive grade qualification (AEC-Q100) and ROHS3 compliance.

Selection between BAT54QB-QZ and BAT54QC-QZ depends on PCB layout requirements and package variant compatibility. Both substitutes provide active product status, improved availability, and automotive qualification compared to the obsolete BAT54QBZ.

Frequently Asked Questions (FAQ)

Q: Can BAT54QB-QZ directly replace BAT54QBZ in existing designs?

A: Yes. BAT54QB-QZ maintains identical electrical parameters (30 V reverse voltage, 200 mA current, 800 mV forward voltage, 5 ns recovery time) and uses the same package configuration (DFN1110D-3). The primary difference is product status (active vs. obsolete) and moisture sensitivity level (MSL 3 vs. MSL 1). Appropriate moisture handling procedures must be implemented during assembly.

Q: What is the difference between BAT54QB-QZ and BAT54QC-QZ?

A: Both parts are electrically identical and carry the same performance specifications. The distinction is the supplier device package: BAT54QB-QZ uses DFN1110D-3 while BAT54QC-QZ uses DFN1412D-3. Both are classified as 3-XDFN Exposed Pad packages. Selection depends on PCB layout compatibility with the specific package variant.

Q: Are the substitute parts automotive qualified?

A: Yes. Both BAT54QB-QZ and BAT54QC-QZ carry automotive grade designation with AEC-Q100 qualification. The original BAT54QBZ does not specify automotive qualification.

Q: What is the impact of different moisture sensitivity levels?

A: BAT54QBZ has MSL 1 (unlimited moisture sensitivity), while both substitutes have MSL 3 (168 hours). MSL 3 requires storage in dry conditions and limits the time components can be exposed to ambient humidity before soldering. Appropriate moisture control measures must be implemented during component storage and assembly processes.

Q: Are all three parts RoHS and REACH compliant?

A: Yes. BAT54QBZ, BAT54QB-QZ, and BAT54QC-QZ are all ROHS3 compliant and REACH unaffected.

Q: What packaging formats are available?

A: BAT54QBZ inventory status does not specify packaging format. BAT54QB-QZ and BAT54QC-QZ are supplied in Tape & Reel (TR) format, which is standard for automated assembly processes.