FJC2383OTF Equivalent & Substitute Parts

Part Overview

The FJC2383OTF is an NPN bipolar junction transistor manufactured by onsemi, rated for 160 V collector-emitter breakdown voltage and 1 A maximum collector current in a surface mount SOT-89-3 package. This device is classified as obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this transistor topology.

Key Parameters

Parameter	Value	Unit
Transistor Type	NPN	—
Voltage - Collector Emitter Breakdown (Max)	160	V
Current - Collector (Ic) (Max)	1	A
Power - Max	500	mW
Frequency - Transition	100	MHz
DC Current Gain (hFE) (Min) @ Ic, Vce	100 @ 200mA, 5V	—
Vce Saturation (Max) @ Ib, Ic	1.5V @ 50mA, 500mA	—
Operating Temperature (TJ)	150	°C
Mounting Type	Surface Mount	—
Package / Case	TO-243AA	—

Substitute Part Grouping Explanation

Substitution of the FJC2383OTF is determined by electrical and mechanical compatibility across the following critical parameters:

Electrical Compatibility Criteria:

Transistor type must be NPN
Collector-emitter breakdown voltage must be greater than or equal to 160 V
Maximum collector current must be greater than or equal to 1 A
Maximum power dissipation must be greater than or equal to 500 mW
Transition frequency must support the application bandwidth requirement
DC current gain (hFE) must meet or exceed minimum specifications
Saturation voltage characteristics must be compatible with circuit design

Mechanical Compatibility Criteria:

Surface mount mounting type
TO-243AA package footprint
Moisture sensitivity level MSL 1 (Unlimited)

The substitute parts listed below satisfy these criteria within the allowed parameter ranges for this product category.

Parameter Comparison

Parameter	FJC2383OTF	2SC3648S-TD-E	2SC3648T-TD-E	FCX495TC
Manufacturer	onsemi	onsemi	onsemi	Diodes Incorporated
Product Status	Obsolete	Active	Active	Active
Transistor Type	NPN	NPN	NPN	NPN
Voltage - Collector Emitter Breakdown (Max)	160 V	160 V	160 V	150 V
Current - Collector (Ic) (Max)	1 A	700 mA	700 mA	1 A
Power - Max	500 mW	500 mW	500 mW	1 W
Frequency - Transition	100 MHz	120 MHz	120 MHz	100 MHz
DC Current Gain (hFE) (Min)	100 @ 200mA, 5V	100 @ 100mA, 5V	100 @ 100mA, 5V	100 @ 1mA, 10V
Vce Saturation (Max) @ Ib, Ic	1.5V @ 50mA, 500mA	400mV @ 25mA, 250mA	400mV @ 25mA, 250mA	300mV @ 50mA, 500mA
Current - Collector Cutoff (Max)	1µA (ICBO)	100nA (ICBO)	100nA (ICBO)	100nA
Operating Temperature (TJ)	150°C	150°C	150°C	-65°C ~ 150°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	TO-243AA	TO-243AA	TO-243AA	TO-243AA
Supplier Device Package	SOT-89-3	PCP	PCP	SOT-89-3
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
RoHS Status	—	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected	REACH Unaffected

Engineering Selection Recommendations

2SC3648S-TD-E and 2SC3648T-TD-E (onsemi)

These parts are active product status alternatives manufactured by onsemi, the original manufacturer of the FJC2383OTF. Both devices maintain the 160 V collector-emitter breakdown voltage and TO-243AA package compatibility. The maximum collector current is reduced to 700 mA, which represents a design constraint for applications requiring the full 1 A rating. Both parts are ROHS3 compliant and carry REACH Unaffected status. The transition frequency is increased to 120 MHz, providing enhanced high-frequency performance. Saturation voltage is improved at 400 mV compared to 1.5 V on the original part. These substitutes are suitable for applications where collector current does not exceed 700 mA.

FCX495TC (Diodes Incorporated)

This part is active product status and maintains the 1 A maximum collector current and 100 MHz transition frequency of the original FJC2383OTF. The collector-emitter breakdown voltage is 150 V, which is 10 V lower than the original specification. Maximum power dissipation is increased to 1 W, providing enhanced thermal capability. The device is ROHS3 compliant and REACH Unaffected. Operating temperature range extends to -65°C, providing broader environmental coverage. This substitute is suitable for applications where the 150 V breakdown voltage is acceptable and the extended temperature range is beneficial.

Frequently Asked Questions (FAQ)

Q: Can the 2SC3648S-TD-E or 2SC3648T-TD-E be used as direct replacements for the FJC2383OTF?

A: These parts are electrically compatible for applications where the maximum collector current requirement does not exceed 700 mA. The 160 V breakdown voltage, 500 mW power rating, and TO-243AA package are identical. The improved saturation voltage and higher transition frequency provide performance benefits. If your circuit requires the full 1 A collector current capability, these parts are not suitable.

Q: What is the difference between 2SC3648S-TD-E and 2SC3648T-TD-E?

A: Both parts are electrically and mechanically identical. The difference lies in packaging format: 2SC3648S-TD-E is supplied in Cut Tape (CT) & Digi-Reel format, while 2SC3648T-TD-E is also supplied in Cut Tape (CT) & Digi-Reel format. Inventory levels differ between the two part numbers.

Q: Can the FCX495TC replace the FJC2383OTF in all applications?

A: The FCX495TC is compatible for applications where the 150 V collector-emitter breakdown voltage meets circuit requirements. The 1 A collector current rating and 100 MHz transition frequency match the original part. The 10 V reduction in breakdown voltage must be evaluated against your circuit's maximum operating voltage. The extended temperature range (-65°C to 150°C) provides additional environmental flexibility.

Q: What are the key differences in saturation voltage between these parts?

A: The FJC2383OTF exhibits 1.5 V saturation voltage at 50 mA base current and 500 mA collector current. The 2SC3648S-TD-E and 2SC3648T-TD-E show 400 mV saturation voltage at 25 mA base current and 250 mA collector current. The FCX495TC shows 300 mV saturation voltage at 50 mA base current and 500 mA collector current. Lower saturation voltage reduces power dissipation in switching applications.

Q: Are all substitute parts RoHS compliant?

A: The 2SC3648S-TD-E, 2SC3648T-TD-E, and FCX495TC are all ROHS3 compliant. The FJC2383OTF RoHS status is not specified in the provided data. All parts carry REACH Unaffected status.

Q: What is the significance of the different supplier device packages (SOT-89-3 vs. PCP)?

A: Both package types conform to the TO-243AA case outline and are mechanically compatible with the same PCB footprint. SOT-89-3 and PCP are different supplier designations for equivalent surface mount packages. Component placement and soldering processes are identical.

Q: Which substitute part should I select for new designs?

A: For new designs, select from the active product status parts: 2SC3648S-TD-E, 2SC3648T-TD-E, or FCX495TC. If your application requires 1 A collector current, select FCX495TC. If your application operates within 700 mA collector current limits, the 2SC3648 variants offer improved saturation voltage and higher transition frequency. Verify that the 150 V breakdown voltage of FCX495TC is acceptable for your circuit's maximum operating voltage.

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