2N5089TA Equivalent & Substitute Parts

Part Overview

The 2N5089TA is an NPN bipolar junction transistor manufactured by onsemi, designed for general-purpose switching and amplification applications. This device features a maximum collector current of 100 mA, collector-emitter breakdown voltage of 25 V, and maximum power dissipation of 625 mW in a Through Hole TO-92-3 package.

The 2N5089TA is classified as an Obsolete product. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure component availability, and support ongoing production requirements for applications utilizing this transistor.

Substiute Parts

2N5089TA

onsemiIn Stock: 8692N5089TA Datasheet

Current PartRFQ

2N3904BU

onsemiIn Stock: 221042N3904BU Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the 2N5089TA is determined by compatibility across the following critical parameters:

Mandatory Compatibility Criteria:

• Transistor Type: NPN polarity must be maintained
• Package / Case: TO-92-3 Through Hole configuration for mechanical and electrical compatibility
• Operating Temperature Range: -55°C to 150°C (TJ) to ensure thermal performance across application environments
• Power Dissipation: 625 mW maximum rating

Allowable Parameter Variations: Substitute parts may exceed the following specifications of the 2N5089TA without creating functional incompatibility:

• Current - Collector (Ic) (Max): Substitute parts with higher maximum collector current ratings are acceptable
• Voltage - Collector Emitter Breakdown (Max): Substitute parts with higher voltage ratings provide enhanced design margin
• Frequency - Transition: Higher transition frequency ratings support broader application scope
• DC Current Gain (hFE): Variations in current gain are acceptable within the context of circuit design parameters

Non-Substitutable Parameters:

• Transistor Type must remain NPN
• Package must remain TO-92-3 Through Hole
• Operating temperature range must encompass the specified -55°C to 150°C range
• Power dissipation must not be lower than 625 mW

Parameter Comparison

Engineering Selection Recommendations

2N3904BU as Substitute for 2N5089TA:

The 2N3904BU is a direct substitute for the 2N5089TA based on the following engineering criteria:

Package and Mechanical Compatibility: Both devices utilize the TO-92-3 Through Hole package, ensuring identical PCB footprint and mounting compatibility.

Thermal Operating Range: Both devices operate across the identical temperature range of -55°C to 150°C (TJ), maintaining thermal performance specifications across all application environments.

Power Dissipation: Both devices are rated at 625 mW maximum power dissipation, ensuring equivalent thermal management requirements.

Electrical Performance Enhancement: The 2N3904BU provides superior electrical performance characteristics compared to the 2N5089TA:

• Maximum collector current increased from 100 mA to 200 mA
• Collector-emitter breakdown voltage increased from 25 V to 40 V
• Transition frequency increased from 50 MHz to 300 MHz
• Vce saturation reduced from 500 mV to 300 mV

Product Status and Availability: The 2N3904BU maintains Active product status with 22,060 pieces in stock inventory, ensuring long-term component availability. The 2N5089TA is classified as Obsolete with limited inventory of 769 pieces.

Regulatory Compliance: The 2N3904BU is RoHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements. Both devices carry EAR99 ECCN classification.

Frequently Asked Questions (FAQ)

Q: Can the 2N3904BU directly replace the 2N5089TA in existing circuit designs?

A: Yes. The 2N3904BU is a direct substitute for the 2N5089TA. Both devices share identical TO-92-3 package configuration, operating temperature range (-55°C to 150°C), and maximum power dissipation (625 mW). The 2N3904BU provides enhanced electrical performance with higher current, voltage, and frequency ratings, making it suitable for applications originally designed for the 2N5089TA.

Q: What are the key differences between the 2N5089TA and 2N3904BU?

A: The primary differences are:

• Maximum collector current: 2N5089TA rated at 100 mA; 2N3904BU rated at 200 mA
• Collector-emitter breakdown voltage: 2N5089TA rated at 25 V; 2N3904BU rated at 40 V
• Transition frequency: 2N5089TA rated at 50 MHz; 2N3904BU rated at 300 MHz
• Vce saturation: 2N5089TA at 500 mV; 2N3904BU at 300 mV

Q: Are there any package or pinout differences between these devices?

A: No. Both the 2N5089TA and 2N3904BU utilize the TO-92-3 Through Hole package with identical pinout configuration. No PCB modifications or layout changes are required for substitution.

Q: What is the impact of higher transition frequency in the 2N3904BU?

A: The 2N3904BU transition frequency of 300 MHz compared to the 2N5089TA at 50 MHz indicates superior high-frequency performance capability. This enhancement supports applications requiring faster switching speeds and higher-frequency signal processing without introducing incompatibility with designs originally specified for the 2N5089TA.

Q: Does the 2N3904BU require different biasing or circuit design modifications?

A: Circuit design modifications are not required for substitution. The 2N3904BU operates within the same thermal range and power dissipation envelope as the 2N5089TA. However, the enhanced electrical specifications of the 2N3904BU may allow for optimized circuit performance if design parameters are adjusted to leverage the higher current and voltage ratings.

Q: What is the availability status of these devices?

A: The 2N5089TA is classified as Obsolete with 769 pieces in current inventory. The 2N3904BU maintains Active product status with 22,060 pieces in stock, ensuring reliable long-term component availability for production requirements.

Q: Are there regulatory or compliance differences between these devices?

A: The 2N3904BU is RoHS3 Compliant, meeting current environmental regulations. Both devices are REACH Unaffected and carry EAR99 ECCN classification. The 2N3904BU is recommended for new designs requiring compliance with current environmental standards.