BAT54Q-13 Equivalent & Substitute Parts

Part Overview

The BAT54Q-13 is a Schottky diode manufactured by Diodes Incorporated, rated for 30 V DC reverse voltage and 200 mA average rectified current in a surface mount SOT-23-3 package. This component is classified as Active product status and carries automotive-grade qualification (AEC-Q101). The BAT54Q-13 is supplied in Tape & Reel packaging with 10,614 units currently in stock.

Equivalent and substitute parts are necessary when the primary part number becomes unavailable, when alternative packaging formats are required for manufacturing processes, or when sourcing from multiple suppliers is needed for supply chain resilience. This reference provides parametrically equivalent and similar alternatives that maintain electrical and mechanical compatibility.

Key Parameters

Parameter	Value
Technology	Schottky
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
Package / Case	TO-236-3, SC-59, SOT-23-3
Operating Temperature - Junction	-65°C ~ 150°C
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitute parts for the BAT54Q-13 are classified into two categories based on electrical and mechanical compatibility:

Parametric Equivalents maintain identical electrical specifications across all critical parameters: 30 V reverse voltage rating, 200 mA current rating, 800 mV forward voltage at 100 mA, 5 ns reverse recovery time, 2 µA reverse leakage current, and 10 pF capacitance. These parts differ only in packaging format (Tape & Reel versus Cut Tape) or manufacturer, but function identically in circuit applications.

Similar Parts are diode arrays with common anode configuration that provide equivalent per-diode electrical ratings but differ in internal configuration. These parts contain two diodes with a shared common anode node, requiring circuit design consideration for pin compatibility.

The following parameters determine substitution eligibility:

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
Package / Case: TO-236-3, SC-59, SOT-23-3
RoHS Status: ROHS3 Compliant

Parameter Comparison

Part Number	Manufacturer	Vr (Max)	Io	Vf (Max) @ If	trr	Ir @ Vr	Package	Packaging Format	Product Status	Grade
BAT54Q-13	Diodes Incorporated	30 V	200 mA	800 mV @ 100 mA	5 ns	2 µA @ 25 V	SOT-23-3	Tape & Reel (TR)	Active	Automotive
BAT54-7-F	Diodes Incorporated	30 V	200 mA	800 mV @ 100 mA	5 ns	2 µA @ 25 V	SOT-23-3	Cut Tape (CT) & Digi-Reel®	Active	Standard
BAT54Q-7-F	Diodes Incorporated	30 V	200 mA	800 mV @ 100 mA	5 ns	2 µA @ 25 V	SOT-23-3	Tape & Reel (TR)	Active	Automotive
CBAT54 TR PBFREE	Central Semiconductor Corp	30 V	200 mA	800 mV @ 100 mA	5 ns	2 µA @ 25 V	SOT-23-3	Tape & Reel (TR)	Active	Standard
BAT54A-E3-18	Vishay General Semiconductor	30 V	200 mA (per diode)	800 mV @ 100 mA	5 ns	2 µA @ 25 V	SOT-23-3	Tape & Reel (TR)	Active	Standard
BAT54A-HE3-18	Vishay General Semiconductor	30 V	200 mA (per diode)	800 mV @ 100 mA	5 ns	2 µA @ 25 V	SOT-23-3	Tape & Reel (TR)	Last Time Buy	Automotive

Engineering Selection Recommendations

For Direct Replacement (Single Diode Applications):

BAT54Q-7-F is the primary equivalent for BAT54Q-13 when Tape & Reel packaging is required. Both parts are manufactured by Diodes Incorporated, carry automotive-grade qualification (AEC-Q101), and maintain identical electrical specifications. BAT54Q-7-F is available in higher quantity (4,072 units) compared to BAT54Q-13 (10,614 units), providing alternative sourcing within the same manufacturer's product line.

BAT54-7-F provides parametric equivalence with identical electrical performance but is supplied in Cut Tape & Digi-Reel® format. This part is suitable for applications where alternative packaging formats are acceptable and offers significantly higher inventory availability (443,200 units). The BAT54-7-F does not carry automotive-grade designation; selection should account for application requirements.

CBAT54 TR PBFREE is a parametrically equivalent alternative from Central Semiconductor Corp in Tape & Reel format. This part maintains all critical electrical parameters and is ROHS3 compliant. It provides supply chain diversification from a different manufacturer while preserving electrical compatibility.

For Diode Array Applications:

BAT54A-HE3-18 is recommended for applications requiring a diode array with common anode configuration. This Vishay part carries automotive-grade qualification (AEC-Q101) and operates across -55°C to 125°C junction temperature range. The part is currently in Last Time Buy status; designs utilizing this component should plan for transition to alternative sources.

BAT54A-E3-18 provides equivalent per-diode electrical specifications with common anode configuration from Vishay. This part is in Active product status and offers continued availability. Operating temperature range is specified to 125°C maximum.

Compliance Considerations:

All listed parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating. Automotive-grade parts (BAT54Q-13, BAT54Q-7-F, BAT54A-HE3-18) carry AEC-Q101 qualification. Selection between automotive and standard-grade parts should align with application requirements and end-use classification.

Frequently Asked Questions (FAQ)

Q: Can BAT54-7-F replace BAT54Q-13 in automotive applications?

A: BAT54-7-F provides identical electrical specifications but is not designated as automotive-grade. The part lacks AEC-Q101 qualification. For applications requiring automotive-grade components, BAT54Q-7-F is the appropriate equivalent. BAT54-7-F is suitable for non-automotive applications with equivalent electrical requirements.

Q: What is the difference between BAT54Q-13 and BAT54Q-7-F?

A: Both parts are manufactured by Diodes Incorporated with identical electrical specifications and automotive-grade qualification. The primary difference is inventory quantity and reel size designation. BAT54Q-13 is supplied in 10K reel format, while BAT54Q-7-F is supplied in 3K reel format. Electrical performance and package compatibility are identical.

Q: Can BAT54A-E3-18 be used as a direct replacement for BAT54Q-13?

A: BAT54A-E3-18 is a diode array with common anode configuration, not a single diode. While per-diode electrical ratings are equivalent, the internal configuration differs. Direct replacement requires circuit design modification to accommodate the common anode node. This part is suitable only for applications designed for diode array configuration.

Q: Why is BAT54A-HE3-18 marked as Last Time Buy?

A: Last Time Buy status indicates the manufacturer has announced end-of-life for this part number. Existing inventory is available for purchase, but no future production is planned. Designs currently using BAT54A-HE3-18 should transition to BAT54A-E3-18 or alternative equivalent parts to ensure long-term supply continuity.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All parts listed in this reference maintain ROHS3 compliance status. All parts also carry MSL 1 (Unlimited) moisture sensitivity rating, indicating no special moisture handling requirements during storage or assembly.

Q: What packaging formats are available for equivalent parts?

A: BAT54Q-13, BAT54Q-7-F, and CBAT54 TR PBFREE are supplied in Tape & Reel (TR) format. BAT54-7-F is supplied in Cut Tape (CT) & Digi-Reel® format. All diode array alternatives (BAT54A-E3-18, BAT54A-HE3-18) are supplied in Tape & Reel format. Selection should account for manufacturing equipment compatibility and assembly process requirements.

Q: Can CBAT54 TR PBFREE be used in automotive applications?

A: CBAT54 TR PBFREE is not designated as automotive-grade and does not carry AEC-Q101 qualification. For automotive applications, use BAT54Q-13, BAT54Q-7-F, or BAT54A-HE3-18. CBAT54 TR PBFREE is suitable for industrial and commercial applications with equivalent electrical requirements.

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