2SD2374AP Equivalent & Substitute Parts

Part Overview

The 2SD2374AP is an NPN bipolar junction transistor manufactured by Panasonic Electronic Components, rated for 80 V collector-emitter breakdown voltage and 3 A maximum collector current. This device is packaged in a TO-220-3 through-hole configuration and is designed for general-purpose switching and amplification applications with a maximum power dissipation of 2 W.

The 2SD2374AP is classified as obsolete. Equivalent and substitute parts are necessary to maintain design continuity and ensure component availability for new production runs, repairs, and system upgrades where the original part is no longer manufactured or readily available.

Key Parameters

Parameter	Value	Unit
Transistor Type	NPN	—
Voltage - Collector Emitter Breakdown (Max)	80	V
Current - Collector (Ic) (Max)	3	A
Power - Max	2	W
Frequency - Transition	30	MHz
Vce Saturation (Max) @ Ib, Ic	1.2 V @ 375 mA, 3 A	—
DC Current Gain (hFE) (Min) @ Ic, Vce	120 @ 1 A, 4 V	—
Mounting Type	Through Hole	—
Package / Case	TO-220-3 Full Pack	—
Operating Temperature (Max)	150	°C (TJ)

Substitute Part Grouping Explanation

Substitution of the 2SD2374AP is determined by the following critical parameters:

Transistor Type: Must be NPN
Voltage - Collector Emitter Breakdown (Max): Must be greater than or equal to 80 V
Current - Collector (Ic) (Max): Must be greater than or equal to 3 A
Power - Max: Must be greater than or equal to 2 W
Mounting Type: Must be Through Hole
Package / Case: Must be TO-220-3 Full Pack

The substitute parts identified below meet or exceed these electrical and mechanical requirements, ensuring functional compatibility in applications designed for the 2SD2374AP.

Parameter Comparison

Parameter	2SD2374AP (Panasonic)	MJF44H11G (onsemi)	MJF3055G (onsemi)
Transistor Type	NPN	NPN	NPN
Voltage - Collector Emitter Breakdown (Max)	80 V	80 V	90 V
Current - Collector (Ic) (Max)	3 A	10 A	10 A
Power - Max	2 W	2 W	2 W
Frequency - Transition	30 MHz	50 MHz	2 MHz
Vce Saturation (Max) @ Ib, Ic	1.2 V @ 375 mA, 3 A	1 V @ 400 mA, 8 A	2.5 V @ 3.3 A, 10 A
DC Current Gain (hFE) (Min) @ Ic, Vce	120 @ 1 A, 4 V	40 @ 4 A, 1 V	20 @ 4 A, 4 V
Mounting Type	Through Hole	Through Hole	Through Hole
Package / Case	TO-220-3 Full Pack	TO-220-3 Full Pack	TO-220-3 Full Pack
Operating Temperature (Max)	150 °C (TJ)	150 °C (TJ)	150 °C (TJ)
Product Status	Obsolete	Active	Active

Engineering Selection Recommendations

MJF44H11G (onsemi) is the primary substitute for the 2SD2374AP. This part maintains identical voltage and power ratings while providing enhanced current handling capability (10 A versus 3 A) and superior transition frequency (50 MHz versus 30 MHz). The MJF44H11G is manufactured by onsemi, an active supplier, and carries ROHS3 compliance and REACH unaffected status, ensuring regulatory alignment for current production environments.

MJF3055G (onsemi) is an alternative substitute that exceeds the voltage specification (90 V versus 80 V) and provides higher current capacity (10 A versus 3 A). However, the transition frequency is reduced to 2 MHz, which may limit suitability for high-frequency switching applications. The MJF3055G is also manufactured by an active supplier with ROHS3 compliance and REACH unaffected status.

Both substitute parts are available in active production with established supply chains, addressing the obsolescence of the 2SD2374AP while maintaining through-hole TO-220-3 package compatibility.

Frequently Asked Questions (FAQ)

Q: Can the MJF44H11G directly replace the 2SD2374AP in all applications?

A: The MJF44H11G meets or exceeds all critical electrical parameters of the 2SD2374AP, including voltage rating, power dissipation, and mounting configuration. Direct substitution is supported from an electrical and mechanical standpoint. Circuit validation is required to confirm performance in specific application contexts.

Q: What is the primary difference between the MJF44H11G and MJF3055G substitutes?

A: The MJF44H11G maintains the 80 V voltage rating of the original 2SD2374AP and provides a transition frequency of 50 MHz, suitable for higher-speed switching applications. The MJF3055G offers a higher voltage rating of 90 V but operates at a reduced transition frequency of 2 MHz, making it more suitable for lower-frequency power switching applications.

Q: Are the substitute parts available in the same packaging as the 2SD2374AP?

A: Yes. Both the MJF44H11G and MJF3055G are supplied in TO-220-3 full pack configurations, identical to the 2SD2374AP. The through-hole mounting type is preserved, allowing for direct PCB compatibility without layout modifications.

Q: What compliance certifications do the substitute parts carry?

A: Both the MJF44H11G and MJF3055G are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements for electronic component manufacturing and distribution in regulated markets.

Q: Why is the 2SD2374AP classified as obsolete?

A: The 2SD2374AP is no longer manufactured by Panasonic Electronic Components. Substitute parts from active manufacturers such as onsemi ensure continued availability and supply chain stability for applications requiring NPN transistors with 80 V ratings and 3 A or greater current capacity.

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