BAT54CT-7-F-79 Equivalent & Substitute Parts

Part Overview

The BAT54CT-7-F-79 is a Schottky diode array in a 1 Pair Common Cathode configuration, rated for 30 V DC reverse voltage and 200 mA average rectified current per diode. Manufactured by Diodes Incorporated, this component is packaged in SOT-523 surface mount form factor and is currently classified as obsolete. Due to its obsolete product status, identifying equivalent and substitute parts is necessary to maintain design continuity and ensure component availability for production and repair applications.

Substiute Parts

BAT54CT-7-F-79

Diodes IncorporatedIn Stock: 982BAT54CT-7-F-79 Datasheet

Current PartRFQ

BAT54CT-7-F

Diodes IncorporatedIn Stock: 68483BAT54CT-7-F Datasheet

Parametric EquivalentRFQ

BAT54CT-HF

Comchip TechnologyIn Stock: 1213BAT54CT-HF Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BAT54CT-7-F-79 is determined by strict equivalence across the following critical parameters:

• Diode Configuration: 1 Pair Common Cathode (electrical topology requirement)
• Technology: Schottky (determines forward voltage characteristics and switching speed)
• Voltage - DC Reverse (Vr) (Max): 30 V (maximum blocking voltage specification)
• Current - Average Rectified (Io) (per Diode): 200 mA (DC) (current handling capacity)
• Voltage - Forward (Vf) (Max) @ If: 1 V @ 100 mA (forward conduction characteristic)
• Reverse Recovery Time (trr): 5 ns (switching performance)
• Current - Reverse Leakage @ Vr: 2 µA @ 25 V (leakage specification)
• Package / Case: SOT-523 (physical and electrical footprint compatibility)
• Mounting Type: Surface Mount (assembly process compatibility)

Substitute parts must match all parameters listed above to ensure functional and mechanical interchangeability without circuit redesign or board layout modification.

Parameter Comparison

Engineering Selection Recommendations

BAT54CT-7-F (Diodes Incorporated)

This substitute is manufactured by the same original manufacturer as the BAT54CT-7-F-79. It maintains identical electrical specifications across all critical parameters and is classified as an active product with current production status. The BAT54CT-7-F is available in Cut Tape (CT) and Digi-Reel® packaging formats with significantly higher inventory availability (68,400 pieces in stock). This part is ROHS3 compliant and REACH unaffected. The operating temperature range is -65°C to 125°C, which is narrower than the main part's -65°C to 150°C specification. This substitute is suitable for applications where the upper temperature limit of 125°C is acceptable.

BAT54CT-HF (Comchip Technology)

This substitute is manufactured by Comchip Technology and provides identical electrical performance across all critical parameters. It is classified as an active product and is ROHS3 compliant. The BAT54CT-HF operates within a temperature range of -55°C to 125°C, which differs from the main part in both the lower limit (-55°C versus -65°C) and upper limit (125°C versus 150°C). This substitute is suitable for applications where the operating temperature range of -55°C to 125°C is acceptable. Inventory availability is 1,161 pieces in stock.

Both substitute parts are functionally equivalent to the BAT54CT-7-F-79 for applications operating within their specified temperature ranges. Selection between substitutes depends on application temperature requirements and supply chain considerations.

Frequently Asked Questions (FAQ)

Q: Can BAT54CT-7-F be used as a direct replacement for BAT54CT-7-F-79?

A: Yes. The BAT54CT-7-F is a direct parametric equivalent with identical electrical specifications. Both parts share the same diode configuration, voltage ratings, current ratings, forward voltage characteristics, and reverse recovery time. The primary difference is product status (active versus obsolete) and packaging availability. The operating temperature range of BAT54CT-7-F (-65°C to 125°C) is narrower than BAT54CT-7-F-79 (-65°C to 150°C), so applications requiring operation above 125°C require evaluation.

Q: What are the key differences between BAT54CT-7-F and BAT54CT-HF?

A: Both parts are parametric equivalents with identical electrical specifications for voltage, current, forward voltage, and reverse recovery time. The differences are: (1) Manufacturer: BAT54CT-7-F is from Diodes Incorporated; BAT54CT-HF is from Comchip Technology; (2) Operating temperature range: BAT54CT-7-F operates from -65°C to 125°C; BAT54CT-HF operates from -55°C to 125°C; (3) Inventory: BAT54CT-7-F has higher stock availability.

Q: Are there any package or footprint differences between these parts?

A: No. All three parts (BAT54CT-7-F-79, BAT54CT-7-F, and BAT54CT-HF) use the SOT-523 surface mount package. They are mechanically and electrically compatible for PCB assembly without layout modifications.

Q: What is the significance of the operating temperature range differences?

A: The BAT54CT-7-F-79 operates from -65°C to 150°C. The BAT54CT-7-F operates from -65°C to 125°C, and the BAT54CT-HF operates from -55°C to 125°C. If your application requires operation above 125°C, neither substitute is suitable. If your application requires operation below -55°C, the BAT54CT-HF is not suitable. For applications within -55°C to 125°C, both substitutes are acceptable.

Q: Are all three parts RoHS compliant?

A: Yes. BAT54CT-7-F-79, BAT54CT-7-F, and BAT54CT-HF are all ROHS3 compliant. All three parts are also REACH unaffected.

Q: Why is BAT54CT-7-F-79 listed as obsolete?

A: The BAT54CT-7-F-79 is classified as obsolete, indicating it is no longer in active production. The BAT54CT-7-F, manufactured by the same company, serves as the active production equivalent and is recommended for new designs and ongoing supply requirements.

Q: Can I mix BAT54CT-7-F and BAT54CT-HF in the same circuit?

A: Yes, from an electrical standpoint, both parts are parametric equivalents and can be used interchangeably in the same circuit. However, mixing parts from different manufacturers may introduce supply chain complexity. Standardizing on a single part number is recommended for production consistency.