FJD3076TF Equivalent & Substitute Parts

Part Overview

The FJD3076TF is an NPN bipolar junction transistor manufactured by onsemi, rated for 32 V collector-emitter breakdown voltage and 2 A maximum collector current in a surface mount DPAK package. This device is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement continuity. The part operates at a maximum junction temperature of 150°C with a transition frequency of 100 MHz and 1 W power dissipation capability.

Key Parameters

Parameter	Value	Unit
Transistor Type	NPN	—
Voltage - Collector Emitter Breakdown (Max)	32	V
Current - Collector (Ic) (Max)	2	A
Vce Saturation (Max) @ Ib, Ic	800 mV @ 200 mA, 2 A	—
DC Current Gain (hFE) (Min) @ Ic, Vce	130 @ 500 mA, 3 V	—
Power - Max	1	W
Frequency - Transition	100	MHz
Operating Temperature (Max)	150	°C
Package / Case	TO-252-3, DPAK (2 Leads + Tab), SC-63	—
Mounting Type	Surface Mount	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the FJD3076TF is constrained by the following critical electrical and mechanical parameters:

Mandatory Compatibility Criteria:

Transistor type must be NPN
Package must be TO-252-3 DPAK (2 Leads + Tab), SC-63 surface mount
Mounting type must be surface mount
Moisture sensitivity level must be 1 (Unlimited) or equivalent

Electrical Parameter Constraints: The FJD3076TF operates at 32 V maximum collector-emitter breakdown voltage with 2 A maximum collector current. Substitute parts must support these electrical specifications within the application's design envelope. The saturation voltage of 800 mV at 2 A collector current and the DC current gain of 130 at 500 mA establish the performance baseline.

Identified Substitute Parts: The following onsemi parts share the identical DPAK package and NPN configuration: MJD340G, MJD340RLG, and MJD340T4G. These parts differ in electrical ratings and product status but maintain mechanical and thermal compatibility through the same package specification.

Parameter Comparison

Parameter	FJD3076TF	MJD340G	MJD340RLG	MJD340T4G
Manufacturer	onsemi	onsemi	onsemi	onsemi
Transistor Type	NPN	NPN	NPN	NPN
Voltage - Collector Emitter Breakdown (Max)	32 V	300 V	300 V	300 V
Current - Collector (Ic) (Max)	2 A	500 mA	500 mA	500 mA
Power - Max	1 W	15 W	15 W	15 W
Frequency - Transition	100 MHz	10 MHz	10 MHz	10 MHz
Operating Temperature (Max)	150°C	150°C	150°C	150°C
Package / Case	TO-252-3, DPAK	TO-252-3, DPAK	TO-252-3, DPAK	TO-252-3, DPAK
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Product Status	Obsolete	Active	Active	Active
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

Product Status Consideration: The FJD3076TF is classified as obsolete. All three identified substitute parts—MJD340G, MJD340RLG, and MJD340T4G—carry active product status from onsemi, ensuring continued availability and manufacturing support.

Compliance and Certification: All substitute parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements. The FJD3076TF carries REACH unaffected status but lacks explicit RoHS certification documentation in the provided specifications.

Packaging and Availability: MJD340T4G offers the highest inventory level (50,300 pieces) in Cut Tape and Digi-Reel packaging, providing optimal procurement flexibility. MJD340RLG is available in Tape & Reel format (1,282 pieces), and MJD340G is supplied in Tube packaging (2,000 pieces).

Electrical Derating: The MJD340 series parts operate at higher voltage ratings (300 V) and lower current ratings (500 mA maximum) compared to the FJD3076TF (32 V, 2 A). Applications requiring the full 2 A current capacity of the FJD3076TF cannot be directly substituted with the MJD340 series without circuit redesign. Conversely, applications operating below 500 mA and 32 V can utilize MJD340 series parts with voltage and power margin benefits.

Frequently Asked Questions (FAQ)

Q: Can MJD340G, MJD340RLG, or MJD340T4G be used as direct pin-for-pin replacements for FJD3076TF?

A: Yes, all three parts share identical TO-252-3 DPAK pinout and surface mount configuration. Pin-for-pin replacement is mechanically and electrically feasible for applications operating within the MJD340 series electrical specifications (maximum 500 mA collector current, 300 V collector-emitter breakdown voltage).

Q: What is the primary electrical difference between FJD3076TF and the MJD340 series?

A: The FJD3076TF is rated for 2 A maximum collector current at 32 V breakdown voltage. The MJD340 series is rated for 500 mA maximum collector current at 300 V breakdown voltage. Applications requiring currents above 500 mA cannot use MJD340 series substitutes without circuit modification.

Q: Are there packaging differences among MJD340G, MJD340RLG, and MJD340T4G?

A: The three parts are electrically identical but supplied in different packaging formats. MJD340G is supplied in Tube, MJD340RLG in Tape & Reel, and MJD340T4G in Cut Tape and Digi-Reel. Selection depends on procurement volume and assembly line requirements.

Q: Does the higher power rating of MJD340 series (15 W vs. 1 W) affect substitution suitability?

A: The higher power rating indicates improved thermal dissipation capability in the same DPAK package. This provides thermal margin for applications but does not change the maximum current or voltage limitations. Current and voltage ratings remain the primary constraints.

Q: What is the significance of the transition frequency difference (100 MHz vs. 10 MHz)?

A: The FJD3076TF operates at 100 MHz transition frequency, while MJD340 series parts operate at 10 MHz. Applications requiring high-frequency switching performance above 10 MHz may experience performance degradation with MJD340 series substitutes.

Q: Are all substitute parts RoHS compliant?

A: Yes, MJD340G, MJD340RLG, and MJD340T4G are all ROHS3 compliant. The FJD3076TF does not carry explicit RoHS certification in the provided specifications.

Q: Which MJD340 variant should be selected for new designs?

A: MJD340T4G is recommended for new designs based on highest inventory availability (50,300 pieces) and active product status. The Cut Tape and Digi-Reel packaging supports both manual and automated assembly processes.

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