MPS6521_D26Z Equivalent & Substitute Parts

Part Overview

The MPS6521_D26Z is an NPN bipolar junction transistor manufactured by onsemi, rated for 25 V collector-emitter breakdown voltage and 100 mA maximum collector current in a TO-92-3 through-hole package. This device is classified as obsolete, making equivalent substitute parts necessary for ongoing production and maintenance applications. The MPS6521_D26Z serves general-purpose switching and amplification functions in low-power circuits requiring through-hole mounting.

Substiute Parts

MPS6521_D26Z

onsemiIn Stock: 1276MPS6521_D26Z Datasheet

Current PartRFQ

2N2924 PBFREE

Central Semiconductor CorpIn Stock: 28202N2924 PBFREE Datasheet

DirectRFQ

2N2925 PBFREE

Central Semiconductor CorpIn Stock: 28972N2925 PBFREE Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MPS6521_D26Z are qualified based on the following electrical and mechanical parameters:

Critical Matching Parameters:

• Transistor Type: NPN configuration
• Voltage - Collector Emitter Breakdown (Max): 25 V minimum
• Mounting Type: Through Hole
• Package / Case: TO-92-3 (TO-226AA) compatible

The substitute parts 2N2924 PBFREE and 2N2925 PBFREE meet these core requirements. Both devices are manufactured by Central Semiconductor Corp and maintain the same voltage rating, transistor type, and through-hole TO-92-3 package configuration as the original MPS6521_D26Z. These substitutes are classified as active products with current availability, addressing the obsolescence status of the original part.

Parameter Comparison

Engineering Selection Recommendations

2N2924 PBFREE and 2N2925 PBFREE are direct substitutes for the obsolete MPS6521_D26Z based on electrical and mechanical compatibility. Both substitute parts are manufactured by Central Semiconductor Corp and maintain active product status with current inventory availability.

Compliance Advantages:

• Both substitute parts are ROHS3 compliant, providing environmental regulatory compliance superior to the original MPS6521_D26Z
• REACH Unaffected status is maintained across all three devices
• Moisture Sensitivity Level remains at MSL 1 (Unlimited) for all parts

Availability:

• 2N2924 PBFREE: 2770 Pcs in stock
• 2N2925 PBFREE: 2800 Pcs in stock

The substitute parts provide enhanced frequency performance at 160 MHz transition frequency, which exceeds the specifications of the original part and supports applications requiring higher-speed switching characteristics.

Frequently Asked Questions (FAQ)

Q: Can 2N2924 PBFREE and 2N2925 PBFREE be used interchangeably with MPS6521_D26Z?

A: Yes. Both substitute parts share the same NPN transistor type, 25 V collector-emitter breakdown voltage rating, TO-92-3 through-hole package configuration, and MSL 1 moisture sensitivity level as the original MPS6521_D26Z. The electrical and mechanical parameters align for direct substitution in circuits designed for the original part.

Q: What is the primary reason for substituting the MPS6521_D26Z?

A: The MPS6521_D26Z is classified as obsolete. The 2N2924 PBFREE and 2N2925 PBFREE are active products with current manufacturing and inventory availability, ensuring long-term supply chain continuity.

Q: Are the substitute parts RoHS compliant?

A: Yes. Both 2N2924 PBFREE and 2N2925 PBFREE are ROHS3 compliant, whereas the original MPS6521_D26Z does not specify RoHS compliance status. This provides improved environmental regulatory alignment for new designs and production runs.

Q: Do the substitute parts fit the same PCB footprint?

A: Yes. Both 2N2924 PBFREE and 2N2925 PBFREE use the TO-92-3 (TO-226AA) package with formed leads, identical to the MPS6521_D26Z. No PCB layout modifications are required for substitution.

Q: What is the difference between 2N2924 PBFREE and 2N2925 PBFREE?

A: Both parts share identical electrical specifications and package configuration. The primary distinction is manufacturer part number designation. Either part is suitable for substitution based on the provided parameters.

Q: Are there any temperature range limitations with the substitute parts?

A: The substitute parts do not specify an operating temperature range in the provided data. The original MPS6521_D26Z operates from -55°C to 150°C. Verify substitute part temperature specifications with the manufacturer datasheet if operation outside standard industrial temperature ranges is required.