BAW74-D87Z Equivalent & Substitute Parts

Part Overview

The BAW74-D87Z is a general-purpose diode array manufactured by onsemi, configured as 1 pair common anode with a maximum reverse voltage of 50 V and average rectified current of 200 mA per diode. The device is housed in a surface mount TO-236-3 (SOT-23-3) package. This part is classified as obsolete, making equivalent and substitute parts necessary for ongoing design requirements and production continuity. Substitute parts listed maintain the same diode configuration and package type while offering variations in electrical performance parameters.

Substiute Parts

BAW74-D87Z

onsemiIn Stock: 1043BAW74-D87Z Datasheet

Current PartRFQ

MMBD1205

onsemiIn Stock: 35431MMBD1205 Datasheet

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M1MA151WAT1G

onsemiIn Stock: 30437M1MA151WAT1G Datasheet

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BAW56-E3-08

Vishay General Semiconductor - Diodes DivisionIn Stock: 35154BAW56-E3-08 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the BAW74-D87Z is determined by the following criteria:

Mandatory Compatibility Parameters:

• Diode Configuration: 1 Pair Common Anode (all substitutes maintain this configuration)
• Package / Case: TO-236-3, SC-59, SOT-23-3 (all substitutes use identical surface mount package)
• Mounting Type: Surface Mount (all substitutes are surface mount)
• Operating Temperature - Junction: 150°C maximum (all substitutes meet or exceed this specification)
• RoHS Status: ROHS3 Compliant (all substitutes maintain compliance)

Performance Parameters (Allowable Variation):

• Voltage - DC Reverse (Vr): Substitutes may exceed the 50 V specification of the BAW74-D87Z
• Current - Average Rectified (Io): Substitutes may equal or exceed the 200 mA specification
• Voltage - Forward (Vf): Substitutes may vary within acceptable forward voltage ranges
• Reverse Recovery Time (trr): Substitutes may vary based on diode speed classification

All listed substitute parts maintain electrical and mechanical compatibility through identical package specifications and diode configuration, while offering enhanced or equivalent performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

MMBD1205 (onsemi): This part is the primary substitute for the BAW74-D87Z. Both devices are manufactured by onsemi and share identical reverse recovery time (4 ns) and current ratings (200 mA). The MMBD1205 provides enhanced reverse voltage capability (100 V versus 50 V) and is currently in active production status, ensuring long-term availability. This part is suitable for direct replacement in applications where the higher voltage rating does not create design conflicts.

BAW56-E3-08 (Vishay General Semiconductor - Diodes Division): This substitute offers the highest current rating (250 mA) among the listed alternatives and a reverse voltage rating of 70 V. The BAW56-E3-08 is actively produced and maintains full RoHS3 compliance. This part is appropriate for applications requiring higher current capacity or voltage margin.

M1MA151WAT1G (onsemi): This part provides a lower reverse voltage rating (40 V) and reduced current capacity (100 mA per diode) compared to the BAW74-D87Z. Selection of this substitute is limited to applications where the lower electrical specifications are acceptable. The part is actively produced and maintains full compliance certifications.

All substitute parts maintain identical package specifications (TO-236-3, SOT-23-3) and diode configuration (1 Pair Common Anode), ensuring mechanical and electrical pin compatibility. All substitutes are RoHS3 compliant and suitable for surface mount assembly processes.

Frequently Asked Questions (FAQ)

Q: Can the MMBD1205 be used as a direct replacement for the BAW74-D87Z?

A: Yes. Both parts share identical diode configuration (1 Pair Common Anode), package type (TO-236-3, SOT-23-3), current rating (200 mA), and reverse recovery time (4 ns). The MMBD1205 provides higher reverse voltage capability (100 V versus 50 V), making it suitable for direct substitution in applications where this enhanced rating does not create design conflicts.

Q: What is the primary difference between the BAW74-D87Z and the BAW56-E3-08?

A: The BAW56-E3-08 offers higher current capacity (250 mA versus 200 mA) and higher reverse voltage (70 V versus 50 V). The BAW56-E3-08 is manufactured by Vishay, whereas the BAW74-D87Z is manufactured by onsemi. Both maintain identical package specifications and diode configuration.

Q: Is the M1MA151WAT1G suitable for all applications using the BAW74-D87Z?

A: No. The M1MA151WAT1G has reduced electrical specifications: lower reverse voltage (40 V versus 50 V) and lower current capacity (100 mA versus 200 mA). This part is suitable only for applications where these lower specifications are acceptable.

Q: Are all substitute parts available in the same package?

A: Yes. All substitute parts use the TO-236-3 (SOT-23-3) surface mount package, ensuring identical mechanical compatibility and PCB footprint.

Q: Do all substitute parts meet RoHS3 compliance?

A: Yes. All listed substitute parts are RoHS3 compliant, maintaining regulatory compliance for applications requiring this certification.

Q: What is the significance of the BAW74-D87Z being classified as obsolete?

A: The obsolete status indicates that the BAW74-D87Z is no longer in active production. Substitute parts listed are all in active production status, ensuring continued availability for new designs and production continuity.

Q: Can the reverse recovery time difference between substitutes affect circuit performance?

A: Reverse recovery time variations (4 ns to 10 ns) may affect switching characteristics in high-frequency applications. The MMBD1205 and BAW56-E3-08 offer faster recovery times (4 ns and 6 ns respectively) compared to the M1MA151WAT1G (10 ns). Selection should be based on specific circuit switching requirements.