FJC1386RTF Equivalent & Substitute Parts

Part Overview

The FJC1386RTF is a PNP bipolar junction transistor manufactured by onsemi, rated for 20 V collector-emitter breakdown voltage and 5 A maximum collector current in a surface mount SOT-89-3 package. This device is classified as obsolete, making identification of equivalent and substitute parts necessary for ongoing design support and procurement continuity. The FJC1386RTF delivers 500 mW maximum power dissipation and is suitable for general-purpose switching and amplification applications requiring PNP transistor functionality.

Substiute Parts

FJC1386RTF

onsemiIn Stock: 4233FJC1386RTF Datasheet

Current PartRFQ

2DB1386Q-13

Diodes IncorporatedIn Stock: 20492DB1386Q-13 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the FJC1386RTF is determined by strict equivalence across the following electrical and mechanical parameters:

Critical Matching Parameters:

• Transistor polarity: PNP
• Maximum collector current: 5 A
• Maximum collector-emitter breakdown voltage: 20 V
• Vce saturation characteristics: 1 V @ 100 mA, 4 A
• Collector cutoff current: 500 nA (ICBO)
• Package type: SOT-89-3 (TO-243AA)
• Mounting configuration: Surface Mount

Allowable Variation Parameters:

• DC current gain (hFE): Minimum 120 or higher at specified conditions
• Maximum power dissipation: 500 mW or higher
• Operating temperature range: Must support minimum 150°C junction temperature
• Frequency response: Not a limiting factor for DC switching applications

The substitute part 2DB1386Q-13 from Diodes Incorporated meets all critical matching parameters and exceeds performance in power dissipation (1 W vs. 500 mW) and frequency response (100 MHz transition frequency). The DC current gain specification of 120 @ 500 mA, 2 V is lower than the FJC1386RTF (180 @ 500 mA, 2 V) but remains within acceptable substitution tolerance for general-purpose applications.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The FJC1386RTF is classified as obsolete. The 2DB1386Q-13 substitute is classified as active, ensuring long-term availability and continued manufacturing support. Selection of the active substitute part provides supply chain continuity and reduces procurement risk.

Compliance and Certification: The 2DB1386Q-13 carries RoHS3 compliance certification, whereas the FJC1386RTF does not specify RoHS status. Both parts are REACH Unaffected and carry EAR99 ECCN classification. For applications requiring RoHS compliance, the 2DB1386Q-13 is the appropriate selection.

Electrical Performance: The 2DB1386Q-13 meets or exceeds all critical electrical parameters of the FJC1386RTF. The lower DC current gain (120 vs. 180) does not constitute a substitution barrier for general-purpose switching applications where base drive is properly designed. The enhanced power rating (1 W vs. 500 mW) and specified transition frequency (100 MHz) provide additional design margin.

Packaging and Thermal: Both parts utilize identical SOT-89-3 surface mount packaging, ensuring mechanical and thermal compatibility. The 2DB1386Q-13 supports an extended operating temperature range (−55°C to 150°C) compared to the FJC1386RTF (150°C maximum), providing broader application flexibility.

Frequently Asked Questions (FAQ)

Q: Can the 2DB1386Q-13 directly replace the FJC1386RTF in existing designs?

A: Yes. The 2DB1386Q-13 meets all critical electrical specifications (5 A collector current, 20 V breakdown voltage, 1 V saturation voltage, 500 nA cutoff current) and uses identical SOT-89-3 packaging. No circuit modifications are required for direct substitution in applications designed for the FJC1386RTF.

Q: Why is the DC current gain lower on the 2DB1386Q-13 (120 vs. 180)?

A: DC current gain variation within a device family is normal and does not prevent substitution when the substitute specification meets or exceeds the minimum required gain for the application. A gain of 120 is sufficient for standard switching circuits where base drive is calculated to ensure saturation. Applications requiring specific gain matching should verify base drive calculations.

Q: Are there any thermal or power dissipation concerns with the 2DB1386Q-13?

A: No. The 2DB1386Q-13 has a higher maximum power rating (1 W vs. 500 mW), providing additional thermal margin. Both devices operate at the same maximum junction temperature (150°C). The substitute part offers improved thermal performance.

Q: What is the significance of the 100 MHz transition frequency on the 2DB1386Q-13?

A: The transition frequency specification indicates the frequency at which the device maintains unity current gain. This parameter is not specified for the FJC1386RTF. For DC and low-frequency switching applications, this parameter is not a limiting factor. For high-frequency applications, the 2DB1386Q-13 provides documented frequency performance.

Q: Does the extended temperature range of the 2DB1386Q-13 (−55°C to 150°C) affect substitution?

A: No. An extended operating range does not prevent substitution. The 2DB1386Q-13 supports all temperatures within the FJC1386RTF specification range and beyond, making it suitable for applications with wider temperature requirements.

Q: Are there any compliance or regulatory differences between these parts?

A: The 2DB1386Q-13 carries RoHS3 compliance certification, while the FJC1386RTF does not specify RoHS status. Both parts are REACH Unaffected. For applications requiring RoHS compliance, the 2DB1386Q-13 is the appropriate selection.

Q: What is the packaging format difference between the FJC1386RTF and 2DB1386Q-13?

A: The FJC1386RTF is supplied in standard packaging format. The 2DB1386Q-13 is supplied in Tape & Reel (TR) format, which is standard for high-volume surface mount assembly. Both use identical SOT-89-3 component geometry. Tape & Reel format is compatible with automated pick-and-place assembly equipment.