PN3567 NPN Bipolar Junction Transistor Equivalent & Substitute Parts

Part Overview

The PN3567 is an NPN bipolar junction transistor manufactured by onsemi, designed for general-purpose switching and amplification applications. It features a maximum collector current of 600 mA, collector-emitter breakdown voltage of 40 V, and power dissipation of 625 mW in a Through Hole TO-92-3 package.

The PN3567 is classified as an obsolete product. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or repair requirements for legacy systems utilizing this component.

Substiute Parts

PN3567

onsemiIn Stock: 1040PN3567 Datasheet

Current PartRFQ

2N4401BU

onsemiIn Stock: 99862N4401BU Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the PN3567 is determined by strict equivalence across the following critical electrical and mechanical parameters:

Electrical Compatibility Criteria:

• Transistor type must be NPN
• Maximum collector current (Ic) must be equal to or greater than 600 mA
• Collector-emitter breakdown voltage (VCEO) must be equal to or greater than 40 V
• Maximum power dissipation must be equal to or greater than 625 mW
• Operating temperature range must encompass -55°C to 150°C

Mechanical Compatibility Criteria:

• Package type must be TO-92-3 (Through Hole)
• Physical footprint and pin configuration must be identical

The 2N4401BU meets all substitution criteria and is classified as an active product with current manufacturing availability.

Parameter Comparison

Engineering Selection Recommendations

The 2N4401BU is a direct electrical and mechanical substitute for the PN3567. Both devices share identical maximum ratings for collector current, collector-emitter breakdown voltage, and power dissipation. Both are housed in the TO-92-3 Through Hole package with identical pin configuration.

The 2N4401BU is manufactured by onsemi and maintains active product status with current manufacturing support. The device is ROHS3 compliant and carries REACH Unaffected status, meeting modern regulatory requirements.

The 2N4401BU exhibits a higher DC current gain (hFE minimum of 100 versus 40) and includes specified transition frequency of 250 MHz, providing enhanced performance characteristics compared to the obsolete PN3567. These improvements do not compromise backward compatibility in applications designed for the PN3567.

Current inventory availability of the 2N4401BU (9900 pieces) ensures supply chain continuity for production and repair applications.

Frequently Asked Questions (FAQ)

Q: Can the 2N4401BU directly replace the PN3567 in existing circuit designs?

A: Yes. The 2N4401BU meets all electrical maximum ratings and mechanical package requirements of the PN3567. Pin configuration and footprint are identical. The higher DC current gain of the 2N4401BU does not introduce incompatibility in circuits designed for the PN3567.

Q: What is the primary reason for substituting the PN3567?

A: The PN3567 is classified as obsolete. The 2N4401BU is an active product with current manufacturing support and inventory availability, ensuring long-term supply chain reliability.

Q: Are there differences in electrical performance between these devices?

A: Both devices share identical maximum ratings for collector current (600 mA), collector-emitter breakdown voltage (40 V), and power dissipation (625 mW). The 2N4401BU specifies a transition frequency of 250 MHz and higher minimum DC current gain (100 versus 40). These differences represent performance enhancements that maintain backward compatibility.

Q: Is the TO-92-3 package identical between both parts?

A: Yes. Both the PN3567 and 2N4401BU use the TO-92-3 (TO-226AA) Through Hole package with identical pin configuration and physical footprint.

Q: What regulatory compliance does the 2N4401BU carry?

A: The 2N4401BU is ROHS3 compliant and carries REACH Unaffected status, meeting current environmental and regulatory requirements.