2N7002TA N-Channel MOSFET Equivalent & Substitute Parts

Part Overview

The 2N7002TA is an N-Channel MOSFET manufactured by Diodes Incorporated, rated for 60V drain-to-source voltage with 115mA continuous drain current in a surface mount SOT-23-3 package. This device is classified as obsolete, necessitating identification of active equivalent and substitute parts for ongoing design requirements and procurement needs. Substitute parts must maintain electrical compatibility across voltage ratings, current handling, and thermal characteristics while accommodating packaging and manufacturer variations.

Key Parameters

Parameter	2N7002TA Value	Unit
FET Type	N-Channel	—
Drain to Source Voltage (Vdss)	60	V
Continuous Drain Current (Id) @ 25°C	115	mA
Rds On (Max) @ 500mA, 10V	7.5	Ohm
Vgs(th) (Max) @ 250µA	2.5	V
Vgs (Max)	±20	V
Input Capacitance (Ciss) @ 25V	50	pF
Power Dissipation (Max)	330	mW
Operating Temperature Range	-55 to 150	°C
Package Type	SOT-23-3	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
MSL Rating	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitution of the 2N7002TA is determined by the following critical parameters:

Electrical Compatibility Requirements:

Drain-to-Source Voltage (Vdss): Must equal or exceed 60V
Continuous Drain Current (Id): Must support minimum 115mA at 25°C
Gate-Source Threshold Voltage (Vgs(th)): Must remain within ±20V maximum gate voltage specification
On-State Resistance (Rds On): Must not exceed 7.5 Ohm at specified test conditions to maintain circuit performance

Mechanical & Environmental Compatibility:

Package: SOT-23-3 (TO-236-3, SC-59) surface mount configuration
Operating Temperature: Must support -55°C to 150°C range
Moisture Sensitivity Level: MSL 1 (Unlimited) preferred for reliability
RoHS Compliance: ROHS3 Compliant status required

Substitution Categories:

Category 1 – Direct Electrical Equivalents (115mA Class): Parts maintaining 115mA continuous drain current specification with identical Vdss, Rds On, and thermal characteristics. These include 2N7002L, 2N7002LT1G, 2N7002LT1H, 2N7002LT3G, 2N7002 (UMW), 2N7002-G, and 2N7002-TP.

Category 2 – Enhanced Performance Substitutes (Higher Current Rating): Parts exceeding 115mA continuous drain current while maintaining 60V Vdss rating. These include 2N7002-TP-HF (340mA), 2N7002E-T1-E3 (240mA), and 2N7002ET1G (260mA). These parts provide superior current handling and reduced on-state resistance, suitable for applications requiring thermal margin or higher switching capacity.

Parameter Comparison

Part Number	Manufacturer	Vdss (V)	Id @ 25°C (mA)	Rds On @ 10V (Ohm)	Vgs(th) @ 250µA (V)	Power Dissipation (mW)	Product Status	Package
2N7002TA	Diodes Inc.	60	115	7.5	2.5	330	Obsolete	SOT-23-3
2N7002L	onsemi	60	115	7.5	2.5	200	Active	SOT-23-3
2N7002LT1G	onsemi	60	115	7.5	2.5	225	Active	SOT-23-3
2N7002LT1H	onsemi	60	115	7.5	2.5	225	Active	SOT-23-3
2N7002LT3G	onsemi	60	115	7.5	2.5	225	Active	SOT-23-3
2N7002	UMW	60	115	5.0	2.5	225	Active	SOT-23-3
2N7002-G	onsemi	60	115	7.5	2.5	200	Last Time Buy	SOT-23-3
2N7002-TP	Micro Commercial Co	60	115	7.5	2.5	200	Active	SOT-23-3
2N7002-TP-HF	Micro Commercial Co	60	340	2.5	2.5	1080	Active	SOT-23-3
2N7002E-T1-E3	Vishay Siliconix	60	240	3.0	2.5	350	Active	SOT-23-3
2N7002ET1G	onsemi	60	260	2.5	2.5	300	Active	SOT-23-3

Engineering Selection Recommendations

Primary Substitutes (Direct Replacement – 115mA Class):

For applications requiring direct electrical equivalence to the 2N7002TA, the following active parts are recommended:

2N7002LT1G (onsemi) – Preferred primary substitute. Active product status with 360,300 units in stock. Maintains 115mA continuous drain current, 60V Vdss, and 7.5 Ohm Rds On specification. Power dissipation of 225mW provides thermal margin over the original 330mW rating. ROHS3 compliant with MSL 1 rating. SOT-23-3 package compatibility confirmed.

2N7002LT3G (onsemi) – Alternative primary substitute. Active status with 30,396 units available. Identical electrical specifications to 2N7002LT1G. Suitable for high-volume procurement with established supply chain.

2N7002-TP (Micro Commercial Co) – Secondary substitute option. Active status with 100,400 units in stock. Maintains all critical electrical parameters. Cut Tape and Digi-Reel packaging available for automated assembly.

2N7002L (onsemi) – Tertiary option. Active status with 102,100 units. Lowest power dissipation at 200mW, beneficial for thermally constrained applications.

2N7002 (UMW) – High-volume alternative. Active status with 1,000,100 units in stock. Improved Rds On specification of 5.0 Ohm (versus 7.5 Ohm) provides enhanced performance margin. Suitable for cost-sensitive applications with large procurement volumes.

Secondary Substitutes (Enhanced Performance – Higher Current Rating):

For applications where increased current handling or reduced on-state resistance provides design benefits:

2N7002ET1G (onsemi) – 260mA continuous drain current with 2.5 Ohm Rds On. Active status with 62,400 units. Maintains 60V Vdss and SOT-23-3 package. Suitable for applications requiring thermal margin or higher switching frequency capability.

2N7002E-T1-E3 (Vishay Siliconix) – 240mA continuous drain current with 3.0 Ohm Rds On. Active status with 16,818 units. ROHS3 compliant. Provides performance enhancement while maintaining package compatibility.

2N7002-TP-HF (Micro Commercial Co) – 340mA continuous drain current with 2.5 Ohm Rds On. Active status with 762 units. Highest current rating available. Suitable for applications requiring significant thermal or performance margin. Limited inventory availability.

Parts to Avoid:

2N7002-G (onsemi) – Last Time Buy status indicates end-of-life phase. Inventory limited to 2,300 units. Not recommended for new designs or long-term procurement.

2N7002LT1H (onsemi) – Automotive-grade part with AEC-Q101 qualification. Suitable only for automotive applications requiring this certification. Limited inventory (4,300 units). Not recommended for general industrial or consumer applications.

Frequently Asked Questions (FAQ)

Q: Can 2N7002LT1G directly replace 2N7002TA in existing designs?

A: Yes. The 2N7002LT1G maintains identical electrical specifications for Vdss (60V), continuous drain current (115mA), Rds On (7.5 Ohm @ 10V), and gate threshold voltage (2.5V @ 250µA). Package compatibility is confirmed (SOT-23-3). The lower power dissipation rating (225mW versus 330mW) provides thermal margin. No circuit modifications are required.

Q: What is the difference between 2N7002LT1G and 2N7002LT3G?

A: Both parts are manufactured by onsemi with identical electrical specifications. The primary difference is manufacturing date code and supply chain designation. Both are active products suitable for direct substitution. Selection between them should be based on availability and procurement lead time.

Q: Why do some substitute parts have higher current ratings (240mA, 260mA, 340mA)?

A: Enhanced-performance variants such as 2N7002E-T1-E3, 2N7002ET1G, and 2N7002-TP-HF are designed for applications requiring higher switching capacity or thermal margin. These parts maintain the same 60V Vdss rating and SOT-23-3 package but feature reduced on-state resistance and higher continuous drain current capability. They are suitable for applications where the original 115mA specification is marginal or where improved thermal performance is beneficial.

Q: Is the 2N7002 (UMW) equivalent to 2N7002TA?

A: Yes, with one performance advantage. The UMW variant maintains 115mA continuous drain current and 60V Vdss but features improved Rds On specification of 5.0 Ohm (versus 7.5 Ohm on the original). This lower on-state resistance reduces power dissipation and heat generation. The part is ROHS3 compliant with MSL 1 rating. Extremely high inventory availability (1,000,100 units) makes this suitable for large-volume applications.

Q: What is the significance of the "LT1" and "LT3" designations in onsemi part numbers?

A: These designations indicate manufacturing process variants and date code families within onsemi's product line. Both 2N7002LT1G and 2N7002LT3G are active products with identical electrical specifications. The designations do not indicate functional differences relevant to circuit substitution. Selection should be based on availability and supply chain requirements.

Q: Can I use 2N7002LT1H (automotive-grade) in non-automotive applications?

A: Yes, technically. The 2N7002LT1H maintains identical electrical specifications and is AEC-Q101 qualified for automotive use. However, it is not recommended for non-automotive applications due to limited inventory (4,300 units) and higher cost associated with automotive qualification. Standard industrial-grade alternatives such as 2N7002LT1G or 2N7002-TP are more cost-effective for non-automotive designs.

Q: What does "Last Time Buy" status mean for 2N7002-G?

A: Last Time Buy indicates the manufacturer has announced end-of-life for this part number. Production is being phased out, and inventory will not be replenished after current stock is depleted. This part should not be selected for new designs or applications requiring long-term supply continuity. Active alternatives such as 2N7002LT1G or 2N7002-TP are recommended.

Q: Are all substitute parts ROHS3 compliant?

A: All primary and secondary substitute parts listed are ROHS3 compliant except 2N7002-TP-HF, which does not specify RoHS status in available documentation. For applications requiring RoHS compliance certification, confirm compliance status with the specific manufacturer or distributor before procurement.

Q: What is the MSL (Moisture Sensitivity Level) rating, and why does it matter?

A: MSL 1 (Unlimited) indicates the component has unlimited shelf life and requires no special moisture control during storage or handling. All substitute parts maintain MSL 1 rating, matching the original 2N7002TA specification. This ensures compatibility with standard PCB assembly processes and storage conditions without requiring specialized dry-pack or bake-out procedures.

Q: Can I substitute a higher-current variant like 2N7002ET1G in a circuit designed for 115mA?

A: Yes. The 2N7002ET1G (260mA) is a direct functional substitute for circuits designed around the 115mA 2N7002TA. The higher current rating provides thermal margin and improved performance headroom. The reduced on-state resistance (2.5 Ohm versus 7.5 Ohm) decreases power dissipation, reducing heat generation. No circuit modifications are required. This substitution is beneficial for thermally constrained or high-frequency switching applications.

Q: What packaging options are available for substitute parts?

A: All substitute parts maintain SOT-23-3 (TO-236-3, SC-59) surface mount package compatibility. Some variants offer different tape and reel packaging options: 2N7002LT1G, 2N7002LT3G, 2N7002-TP, and 2N7002 (UMW) are available in Cut Tape (CT) and Digi-Reel formats suitable for automated pick-and-place assembly. Other variants are available in standard packaging. Confirm packaging requirements with procurement before finalizing part selection.

Q: Which substitute part offers the best long-term supply availability?

A: The 2N7002 (UMW) offers the highest inventory level at 1,000,100 units in stock, providing exceptional supply security for high-volume applications. The 2N7002LT1G (onsemi) with 360,300 units and 2N7002-TP (Micro Commercial Co) with 100,400 units also provide robust supply continuity. For critical applications, verify current inventory levels with distributors before finalizing procurement commitments.

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