BAT64C-7-F Equivalent & Substitute Parts

Part Overview

The BAT64C-7-F is a Schottky diode array manufactured by Diodes Incorporated, configured as 1 pair common cathode with a maximum reverse voltage of 40 V and average rectified current of 250 mA per diode. The device is housed in a SOT-23-3 surface mount package and is qualified to AEC-Q101 automotive standards. This part is currently in active production status with 12,963 units in stock.

Equivalent and substitute parts are identified when design requirements permit component interchange based on matching electrical characteristics, package compatibility, and operational specifications. Alternative part numbers within the same manufacturer family or from qualified alternative suppliers may be selected based on application-specific current requirements, configuration needs, or supply chain considerations.

Substiute Parts

BAT64C-7-F

Diodes IncorporatedIn Stock: 13038BAT64C-7-F Datasheet

Current PartRFQ

BAT64-7-F

Diodes IncorporatedIn Stock: 4475BAT64-7-F Datasheet

Parametric EquivalentRFQ

BAT64S-7-F

Diodes IncorporatedIn Stock: 12776BAT64S-7-F Datasheet

Parametric EquivalentRFQ

RB705DT146

Rohm SemiconductorIn Stock: 32201RB705DT146 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the BAT64C-7-F is determined by equivalence in the following critical parameters:

Primary Equivalence Criteria:

• Voltage - DC Reverse (Vr) Max: 40 V
• Current - Average Rectified (Io) per Diode: 250 mA
• Technology: Schottky
• Package / Case: TO-236-3, SC-59, SOT-23-3
• Mounting Type: Surface Mount
• Reverse Recovery Time (trr): 3 ns
• Operating Temperature Range: -65°C to 150°C

Configuration Variations: Diode array configuration (common cathode vs. series connection) represents a functional difference that affects circuit topology. Parts with different configurations are listed as substitutes only when the application circuit topology permits such interchange.

Current Rating Deviations: The RB705DT146 from Rohm Semiconductor operates at a reduced average rectified current of 15 mA per diode, representing a significant deviation from the 250 mA specification. This part is included as a manufacturer-recommended alternative only for applications where the lower current rating is acceptable.

Parameter Comparison

Engineering Selection Recommendations

BAT64-7-F (Diodes Incorporated): This part is a parametric equivalent to BAT64C-7-F with identical electrical specifications and automotive qualification. The primary difference is diode configuration: BAT64-7-F is a single diode device, while BAT64C-7-F is a common cathode pair. Selection of BAT64-7-F is appropriate when circuit topology requires a single diode rather than a paired configuration. Both parts maintain AEC-Q101 qualification and ROHS3 compliance.

BAT64S-7-F (Diodes Incorporated): This part matches all electrical parameters of BAT64C-7-F with identical voltage, current, and thermal specifications. The functional difference is diode configuration: BAT64S-7-F features a series connection pair, while BAT64C-7-F features a common cathode pair. Selection of BAT64S-7-F is appropriate when circuit topology requires series-connected diodes. Both parts maintain AEC-Q101 qualification and ROHS3 compliance.

RB705DT146 (Rohm Semiconductor): This part is listed as a manufacturer-recommended alternative with matching voltage rating and package form factor. However, the average rectified current per diode is specified at 15 mA, representing a 94% reduction from the 250 mA rating of BAT64C-7-F. The operating temperature maximum is 125°C, which is 25°C lower than BAT64C-7-F. Selection of RB705DT146 is restricted to applications where the reduced current and temperature specifications are acceptable. Automotive qualification and AEC-Q101 status are not specified for this part.

Frequently Asked Questions (FAQ)

Q: Can BAT64-7-F be used as a direct replacement for BAT64C-7-F?

A: BAT64-7-F is electrically equivalent to BAT64C-7-F with matching voltage, current, and thermal specifications. However, BAT64-7-F is a single diode device while BAT64C-7-F is a common cathode pair. Direct replacement is possible only if the circuit topology accommodates a single diode configuration. Verify circuit schematic requirements before substitution.

Q: What is the functional difference between BAT64C-7-F and BAT64S-7-F?

A: Both parts are Schottky diodes with identical electrical ratings of 40 V reverse voltage and 250 mA average rectified current. The difference is internal configuration: BAT64C-7-F contains a common cathode pair (both cathodes connected), while BAT64S-7-F contains a series connection pair (cathode of first diode connected to anode of second diode). Circuit topology determines which configuration is appropriate.

Q: Is RB705DT146 a suitable replacement for BAT64C-7-F?

A: RB705DT146 shares the same package form factor (SOT-23-3) and reverse voltage rating (40 V) as BAT64C-7-F. However, the average rectified current is rated at 15 mA per diode compared to 250 mA for BAT64C-7-F. Additionally, the maximum operating temperature is 125°C versus 150°C for BAT64C-7-F. RB705DT146 is suitable only for applications where these reduced specifications are acceptable.

Q: Are all substitute parts automotive qualified?

A: BAT64-7-F and BAT64S-7-F are both qualified to AEC-Q101 automotive standards, matching the qualification of BAT64C-7-F. RB705DT146 does not specify automotive qualification or AEC-Q101 status. For applications requiring automotive qualification, BAT64-7-F or BAT64S-7-F are appropriate selections.

Q: Do all substitute parts have the same package dimensions?

A: All listed parts use the TO-236-3, SC-59, SOT-23-3 package designation. Physical dimensions and land pattern compatibility are identical across all parts. Surface mount assembly equipment and PCB footprints are interchangeable.

Q: What is the difference in forward voltage between these parts?

A: BAT64C-7-F, BAT64-7-F, and BAT64S-7-F all specify 750 mV maximum forward voltage at 100 mA. RB705DT146 specifies 370 mV maximum forward voltage at 1 mA. The lower forward voltage of RB705DT146 is measured at a significantly lower current level and is not directly comparable to the 100 mA specification of the other parts.

Q: Are all parts RoHS compliant?

A: All four parts listed are ROHS3 compliant. All parts are also REACH unaffected and carry MSL rating of 1 (unlimited moisture sensitivity level).