BAT54-7-G Equivalent & Substitute Parts

Part Overview

The BAT54-7-G 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 obsolete, necessitating identification of active equivalent parts for ongoing design support and procurement. Substitute parts must maintain identical electrical performance characteristics and package compatibility to ensure direct replacement in existing circuit designs.

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
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the BAT54-7-G is determined by strict equivalence across the following critical parameters:

Voltage Rating: 30 V DC reverse voltage maximum
Current Rating: 200 mA average rectified current
Forward Voltage Drop: 800 mV maximum at 100 mA
Reverse Recovery Time: 5 ns
Reverse Leakage Current: 2 µA at 25 V
Capacitance: 10 pF at 1 V, 1 MHz
Package: SOT-23-3 surface mount configuration
Operating Temperature Range: -65°C to 150°C junction temperature
Compliance: ROHS3 compliance and MSL Level 1

All substitute parts listed maintain these electrical and mechanical specifications. Differences in product status (active versus obsolete), packaging format (cut tape versus tape and reel), and manufacturer do not affect functional equivalence when these parameters are identical.

Parameter Comparison

Parameter	BAT54-7-G	BAT54-7-F	BAT54Q-13	BAT54Q-7-F	CBAT54 TR PBFREE
Manufacturer	Diodes Incorporated	Diodes Incorporated	Diodes Incorporated	Diodes Incorporated	Central Semiconductor Corp
Product Status	Obsolete	Active	Active	Active	Active
Technology	Schottky	Schottky	Schottky	Schottky	Schottky
Voltage - DC Reverse (Vr) (Max)	30 V	30 V	30 V	30 V	30 V
Current - Average Rectified (Io)	200 mA	200 mA	200 mA	200 mA	200 mA
Voltage - Forward (Vf) (Max) @ If	800 mV @ 100 mA	800 mV @ 100 mA	800 mV @ 100 mA	800 mV @ 100 mA	800 mV @ 100 mA
Reverse Recovery Time (trr)	5 ns	5 ns	5 ns	5 ns	5 ns
Current - Reverse Leakage @ Vr	2 µA @ 25 V	2 µA @ 25 V	2 µA @ 25 V	2 µA @ 25 V	2 µA @ 25 V
Capacitance @ Vr, F	10 pF @ 1 V, 1 MHz	10 pF @ 1 V, 1 MHz	10 pF @ 1 V, 1 MHz	10 pF @ 1 V, 1 MHz	10 pF @ 1 V, 1 MHz
Package / Case	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3	TO-236-3, SC-59, SOT-23-3
Operating Temperature - Junction	-65°C ~ 150°C	-65°C ~ 150°C	-65°C ~ 150°C	-65°C ~ 150°C	-65°C ~ 150°C
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Automotive Grade	Yes (AEC-Q101)	Not specified	Yes (AEC-Q101)	Yes (AEC-Q101)	Not specified

Engineering Selection Recommendations

Primary Recommendation: BAT54-7-F

BAT54-7-F is the direct active equivalent manufactured by Diodes Incorporated. This part maintains all electrical parameters identical to BAT54-7-G and carries active product status with higher inventory availability (443,200 units). Selection of BAT54-7-F eliminates obsolescence risk while preserving design compatibility. Packaging is available in Cut Tape and Digi-Reel formats.

Secondary Recommendations: BAT54Q-13 and BAT54Q-7-F

Both BAT54Q-13 and BAT54Q-7-F are parametric equivalents manufactured by Diodes Incorporated with active product status. These parts carry automotive grade qualification (AEC-Q101) and are supplied in Tape & Reel packaging. BAT54Q-13 is available in 10K reel quantities, while BAT54Q-7-F is available in 3K reel quantities. Selection between these variants depends on procurement volume requirements and supply chain logistics.

Alternative Recommendation: CBAT54 TR PBFREE

CBAT54 TR PBFREE is manufactured by Central Semiconductor Corp and maintains all critical electrical parameters. This part is supplied in Tape & Reel format with active product status. Selection of this alternative introduces a secondary manufacturer source, which may be beneficial for supply chain diversification. Automotive grade qualification is not specified for this part.

All substitute parts are ROHS3 compliant, MSL Level 1, and operate across the identical temperature range (-65°C to 150°C junction temperature).

Frequently Asked Questions (FAQ)

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

A: Yes. BAT54-7-F is a direct equivalent with identical electrical specifications across all critical parameters: 30 V reverse voltage, 200 mA current rating, 800 mV forward voltage drop, 5 ns reverse recovery time, and SOT-23-3 package configuration. The primary difference is product status; BAT54-7-F is active while BAT54-7-G is obsolete.

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

A: Both parts are parametric equivalents with identical electrical performance. The difference is packaging quantity: BAT54Q-13 is supplied in 10,000-unit tape and reel quantities, while BAT54Q-7-F is supplied in 3,000-unit tape and reel quantities. Both carry AEC-Q101 automotive qualification.

Q: Is CBAT54 TR PBFREE suitable for automotive applications?

A: CBAT54 TR PBFREE maintains all electrical parameters required for automotive use and is ROHS3 compliant. However, automotive grade qualification (AEC-Q101) is not specified for this part. For applications requiring explicit AEC-Q101 certification, BAT54Q-13 or BAT54Q-7-F are recommended.

Q: Are there package compatibility concerns when substituting these parts?

A: No. All substitute parts use the SOT-23-3 surface mount package (also designated TO-236-3 or SC-59). PCB footprints and reflow soldering profiles are identical across all listed parts.

Q: What is the significance of MSL Level 1 rating?

A: MSL Level 1 indicates unlimited shelf life without moisture baking requirements. All listed parts carry this rating, eliminating moisture sensitivity concerns during storage and handling.

Q: Can I mix manufacturers in production?

A: Yes. All listed parts maintain identical electrical and mechanical specifications. Mixing Diodes Incorporated parts (BAT54-7-F, BAT54Q-13, BAT54Q-7-F) with Central Semiconductor Corp parts (CBAT54 TR PBFREE) does not affect circuit performance. However, supply chain documentation should reflect the specific manufacturer and part number used in each production batch.

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