2N5339 Equivalent & Substitute Parts

Part Overview

The 2N5339 is a through-hole NPN bipolar junction transistor manufactured by Central Semiconductor Corp, rated for 100 V collector-emitter breakdown voltage and 5 A maximum collector current. This device is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and component procurement in legacy systems and new applications requiring compatible performance characteristics.

Key Parameters

Parameter	Value	Unit
Transistor Type	NPN	—
Current - Collector (Ic) Max	5	A
Voltage - Collector Emitter Breakdown (Max)	100	V
Vce Saturation (Max) @ Ib, Ic	1.2 V @ 500 mA, 5 A	—
Current - Collector Cutoff (Max)	100	µA
DC Current Gain (hFE) Min @ Ic, Vce	60 @ 2 A, 2 V	—
Frequency - Transition	30	MHz
Operating Temperature Range	-65 to 200	°C
Mounting Type	Through Hole	—
Package / Case	TO-205AD, TO-39-3 Metal Can	—
Power - Max	6	W

Substitute Part Grouping Explanation

Substitution eligibility for the 2N5339 is determined by strict equivalence across the following critical electrical and mechanical parameters:

Electrical Equivalence Criteria:

Transistor type: NPN configuration
Maximum collector current: 5 A
Collector-emitter breakdown voltage: 100 V
Saturation voltage: 1.2 V @ 500 mA, 5 A
Collector cutoff current: 100 µA
DC current gain (hFE): minimum 60 @ 2 A, 2 V
Operating temperature range: compatible with -65°C to 200°C

Mechanical Equivalence Criteria:

Mounting type: Through Hole
Package: TO-39-3 Metal Can (TO-205AD)

The JANTX2N5339 manufactured by Microchip Technology meets all electrical parameters specified for the 2N5339. Both devices share identical collector current, breakdown voltage, saturation voltage, cutoff current, and DC current gain specifications. Both are packaged in TO-39 through-hole configuration, ensuring mechanical compatibility in existing PCB layouts and socket applications.

Parameter Comparison

Parameter	2N5339 (Central Semiconductor)	JANTX2N5339 (Microchip Technology)	Match Status
Transistor Type	NPN	NPN	Equivalent
Current - Collector (Ic) Max	5 A	5 A	Equivalent
Voltage - Collector Emitter Breakdown (Max)	100 V	100 V	Equivalent
Vce Saturation (Max) @ Ib, Ic	1.2 V @ 500 mA, 5 A	1.2 V @ 500 mA, 5 A	Equivalent
Current - Collector Cutoff (Max)	100 µA	100 µA	Equivalent
DC Current Gain (hFE) Min @ Ic, Vce	60 @ 2 A, 2 V	60 @ 2 A, 2 V	Equivalent
Operating Temperature Range	-65°C to 200°C	-55°C to 200°C	Compatible
Mounting Type	Through Hole	Through Hole	Equivalent
Package / Case	TO-205AD, TO-39-3 Metal Can	TO-205AD, TO-39-3 Metal Can	Equivalent

Engineering Selection Recommendations

Product Status Consideration: The 2N5339 is classified as obsolete. The JANTX2N5339 is classified as active, providing assured long-term availability for new designs and ongoing production support.

Compliance and Certification: The JANTX2N5339 is RoHS non-compliant and REACH unaffected. Selection should be based on system-level compliance requirements. Both devices carry ECCN EAR99 classification.

Inventory and Supply: The 2N5339 maintains 1306 pieces in stock (new original). The JANTX2N5339 maintains 1117 pieces in stock (new original). Both are available for immediate procurement.

Application Suitability: The JANTX2N5339 is suitable for direct substitution in applications where the 2N5339 is currently specified, provided that the narrower operating temperature range of the substitute (-55°C to 200°C versus -65°C to 200°C) is acceptable for the intended application environment.

Frequently Asked Questions (FAQ)

Q: Can JANTX2N5339 replace 2N5339 in existing designs? A: Yes. The JANTX2N5339 meets all electrical specifications of the 2N5339, including collector current, breakdown voltage, saturation voltage, and DC current gain. Both use identical TO-39 through-hole packaging. Verify that the operating temperature range of -55°C to 200°C is acceptable for your application.

Q: What is the difference between 2N5339 and JANTX2N5339? A: Both devices are electrically equivalent NPN transistors with identical electrical ratings. The primary differences are manufacturer (Central Semiconductor versus Microchip Technology), product status (obsolete versus active), and operating temperature minimum (-65°C versus -55°C). The JANTX designation indicates military-grade screening.

Q: Are there any package differences between these parts? A: No. Both the 2N5339 and JANTX2N5339 use the TO-39-3 Metal Can package (TO-205AD), ensuring mechanical and pin compatibility in through-hole applications.

Q: Why is the maximum power rating different between the two parts? A: The 2N5339 specifies 6 W maximum power, while the JANTX2N5339 specifies 1 W. This difference does not affect substitution eligibility, as the JANTX2N5339 meets all current and voltage specifications. Verify that your application power dissipation requirements are compatible with the 1 W rating of the substitute.

Q: What is the significance of the JANTX prefix? A: JANTX indicates a military-grade screened version of the base 2N5339 device, manufactured by Microchip Technology. This designation reflects enhanced quality and reliability screening compared to standard commercial versions.

Q: Can I use 2N5339 in place of JANTX2N5339? A: The 2N5339 is electrically equivalent to the JANTX2N5339. However, the 2N5339 is classified as obsolete, making it unsuitable for new designs or long-term production applications where component availability must be assured.

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