BAT54-7-F-31 Equivalent & Substitute Parts

Part Overview

The BAT54-7-F-31 is a Schottky diode rated for 30V reverse voltage and 200mA average rectified current in a surface mount SOT-23-3 package. This part is classified as obsolete, which necessitates identification of active equivalent alternatives for ongoing design support and procurement. Equivalent substitute parts maintain identical electrical characteristics and package specifications while offering improved availability and active product status from manufacturers.

Substiute Parts

BAT54-7-F-31

Diodes IncorporatedIn Stock: 4141BAT54-7-F-31 Datasheet

Current PartRFQ

BAT54-7-F

Diodes IncorporatedIn Stock: 443299BAT54-7-F Datasheet

Parametric EquivalentRFQ

BAT54Q-13

Diodes IncorporatedIn Stock: 10678BAT54Q-13 Datasheet

Parametric EquivalentRFQ

BAT54Q-7-F

Diodes IncorporatedIn Stock: 4122BAT54Q-7-F Datasheet

Parametric EquivalentRFQ

CBAT54 TR PBFREE

Central Semiconductor CorpIn Stock: 3976CBAT54 TR PBFREE Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BAT54-7-F-31 is determined by equivalence across the following critical parameters:

• Voltage - DC Reverse (Vr) (Max): 30 V
• Current - Average Rectified (Io): 200mA
• 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: 10pF @ 1V, 1MHz
• Package / Case: TO-236-3, SC-59, SOT-23-3
• Operating Temperature - Junction: -65°C ~ 150°C
• Technology: Schottky
• Mounting Type: Surface Mount

All identified substitute parts maintain these electrical and mechanical specifications. Differences in packaging format (Cut Tape vs. Tape & Reel), product status (Active vs. Obsolete), and manufacturer do not affect functional equivalence. Automotive-grade variants with AEC-Q101 qualification provide enhanced reliability for applications requiring automotive standards.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: BAT54-7-F

The BAT54-7-F from Diodes Incorporated is the direct functional equivalent with active product status. This part maintains all electrical and mechanical specifications of the obsolete BAT54-7-F-31 and offers significantly higher inventory availability (443,200 units). The Cut Tape and Digi-Reel packaging options provide flexibility for both manual and automated assembly processes.

Automotive Applications: BAT54Q-13 or BAT54Q-7-F

For applications requiring automotive-grade components, BAT54Q-13 and BAT54Q-7-F are qualified to AEC-Q101 standard. Both parts are manufactured by Diodes Incorporated with active product status. BAT54Q-13 is supplied in Tape & Reel format with 10,614 units in stock, while BAT54Q-7-F is also Tape & Reel packaged with 4,072 units available. These variants are suitable for automotive and high-reliability applications.

Alternative Manufacturer: CBAT54 TR PBFREE

The CBAT54 TR PBFREE from Central Semiconductor Corp provides an alternative source for the same electrical specifications. This part maintains full parametric equivalence and ROHS3 compliance with 3,876 units in inventory. Selection of this part introduces a secondary manufacturer into the supply chain, which may be beneficial for risk mitigation or procurement flexibility.

All substitute parts are ROHS3 compliant, REACH unaffected, and classified under ECCN EAR99 with identical HTSUS coding (8541.10.0070).

Frequently Asked Questions (FAQ)

Q: Can BAT54-7-F be used as a direct replacement for BAT54-7-F-31?

A: Yes. The BAT54-7-F is a direct parametric equivalent with identical electrical characteristics (30V reverse voltage, 200mA current rating, 800mV forward voltage, 5ns recovery time) and package specifications (SOT-23-3). The primary difference is product status: BAT54-7-F is active while BAT54-7-F-31 is obsolete.

Q: What is the difference between standard and automotive-grade BAT54 diodes?

A: Automotive-grade variants (BAT54Q-13 and BAT54Q-7-F) carry AEC-Q101 qualification, indicating compliance with automotive reliability standards. These parts are suitable for applications requiring enhanced quality assurance and automotive supply chain requirements. Standard-grade parts (BAT54-7-F and CBAT54 TR PBFREE) are suitable for general industrial and consumer applications.

Q: Are there packaging differences between the substitute parts?

A: Yes. BAT54-7-F is available in Cut Tape (CT) and Digi-Reel format, suitable for both manual and automated assembly. BAT54Q-13, BAT54Q-7-F, and CBAT54 TR PBFREE are supplied in Tape & Reel (TR) format, optimized for high-volume automated assembly. All parts use the same SOT-23-3 package footprint.

Q: Can I substitute a part from Central Semiconductor (CBAT54 TR PBFREE) for a Diodes Incorporated part?

A: Yes. The CBAT54 TR PBFREE maintains all critical electrical and mechanical parameters. Substitution introduces a different manufacturer into the design, which may require supply chain qualification or secondary source approval depending on organizational procurement policies.

Q: What does MSL 1 (Unlimited) mean for moisture sensitivity?

A: MSL 1 indicates the lowest moisture sensitivity level. These parts have unlimited shelf life under normal storage conditions and do not require special moisture-control handling or baking procedures prior to assembly.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All identified substitute parts (BAT54-7-F, BAT54Q-13, BAT54Q-7-F, and CBAT54 TR PBFREE) are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: Which substitute part has the highest inventory availability?

A: BAT54-7-F from Diodes Incorporated has the highest inventory with 443,200 units in stock, providing the best availability for immediate procurement needs.