2N7002_L99Z Equivalent & Substitute Parts

Part Overview

The 2N7002_L99Z is an N-Channel MOSFET manufactured by onsemi, rated for 60V drain-to-source voltage with 115mA continuous drain current at 25°C. The device is packaged in SOT-23-3 (TO-236-3) surface mount configuration and dissipates 200mW maximum power. This part is classified as obsolete, necessitating identification of active equivalent and substitute components for new designs and production continuity.

Key Parameters

Parameter	Value	Unit
FET Type	N-Channel	—
Drain-to-Source Voltage (Vdss)	60	V
Continuous Drain Current (Id) @ 25°C	115	mA
On-Resistance (Rds On) @ 500mA, 10V	7.5	Ω
Gate-Source Threshold Voltage (Vgs(th)) @ 250µA	2.5	V
Power Dissipation (Max)	200	mW
Operating Temperature Range	-55 to 150	°C
Package Type	SOT-23-3	—
Mounting Type	Surface Mount	—

Substitute Part Grouping Explanation

Substitution of the 2N7002_L99Z 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 equal or exceed 115mA at 25°C
On-Resistance (Rds On) characteristics must support the application's switching and conduction losses
Gate-Source Threshold Voltage (Vgs(th)) must be compatible with drive circuitry
Power Dissipation capability must accommodate thermal requirements

Mechanical Compatibility Requirements:

Package type must be SOT-23-3 or equivalent surface mount configuration
Pin configuration must match TO-236-3 standard
Mounting footprint must be compatible with existing PCB designs

Regulatory and Compliance Requirements:

RoHS3 compliance status
REACH compliance status
Moisture Sensitivity Level (MSL) rating

Substitute parts are grouped into two categories: Direct Equivalents (identical electrical and mechanical specifications) and Similar Alternatives (enhanced electrical performance within compatible package).

Parameter Comparison

Part Number	Manufacturer	Vdss (V)	Id @ 25°C (mA)	Rds On @ 500mA, 10V (Ω)	Vgs(th) @ 250µA (V)	Power Dissipation (mW)	Package	Product Status	RoHS Status
2N7002_L99Z	onsemi	60	115	7.5	2.5	200	SOT-23-3	Obsolete	—
2N7002	UMW	60	115	5.0	2.5	225	SOT-23	Active	ROHS3 Compliant
2N7002LT1G	onsemi	60	115	7.5	2.5	225	SOT-23-3	Active	ROHS3 Compliant
2N7002L	onsemi	60	115	7.5	2.5	200	SOT-23-3	Active	ROHS3 Compliant
2N7002LT3G	onsemi	60	115	7.5	2.5	225	SOT-23-3	Active	ROHS3 Compliant
2N7002-T1-E3	Vishay Siliconix	60	115	7.5	2.5	200	TO-236	Active	ROHS3 Compliant
2N7002ET1G	onsemi	60	260	2.5	2.5	300	SOT-23-3	Active	ROHS3 Compliant
2N7002KT1G	onsemi	60	320	1.6	2.3	300	SOT-23-3	Active	ROHS3 Compliant
2N7002K	Good-Ark Semiconductor	60	300	0.3 @ 500mA, 4.5V	2.5	430	SOT-23	Active	ROHS3 Compliant
2N7002T	onsemi	60	115	7.5	2.0	200	SC-89-3	Active	ROHS3 Compliant
MMBF0201NLT1G	onsemi	20	300	1.0	2.4	225	SOT-23-3	Active	ROHS3 Compliant

Engineering Selection Recommendations

Direct Equivalents for Pin-Compatible Replacement:

The following parts provide electrical and mechanical equivalence to the 2N7002_L99Z and are suitable for direct substitution in existing designs:

2N7002LT1G (onsemi): Active product status with identical electrical specifications and SOT-23-3 packaging. Increased power dissipation rating (225mW) provides thermal margin. ROHS3 compliant.
2N7002L (onsemi): Active product status with matching electrical characteristics and SOT-23-3 packaging. Maintains 200mW power dissipation specification. ROHS3 compliant.
2N7002LT3G (onsemi): Active product status with SOT-23-3 packaging and identical electrical performance. Increased power dissipation rating (225mW). ROHS3 compliant.
2N7002-T1-E3 (Vishay Siliconix): Active product status with equivalent electrical specifications. TO-236 package is mechanically compatible with SOT-23-3 footprint. ROHS3 compliant.

Enhanced Performance Alternatives:

The following parts exceed the minimum electrical requirements of the 2N7002_L99Z while maintaining 60V Vdss rating and SOT-23-3 packaging:

2N7002ET1G (onsemi): Supports 260mA continuous drain current with reduced on-resistance (2.5Ω @ 240mA, 10V). Suitable for applications requiring higher current capacity or lower conduction losses.
2N7002KT1G (onsemi): Supports 320mA continuous drain current with significantly reduced on-resistance (1.6Ω @ 500mA, 10V). Appropriate for high-current switching applications.
2N7002K (Good-Ark Semiconductor): Supports 300mA continuous drain current with enhanced on-resistance performance. Extended operating temperature range to 175°C.

Alternative Package Consideration:

2N7002T (onsemi): Identical electrical specifications to 2N7002_L99Z but packaged in SC-89-3 (smaller footprint). Suitable only if PCB layout accommodates SC-89 package dimensions.

Not Recommended for Direct Substitution:

MMBF0201NLT1G: Vdss rating of 20V is insufficient for 60V applications. Not suitable for replacement.
2N7002 (UMW): While electrically compatible, this part is listed with generic SOT-23 packaging designation without explicit TO-236-3 confirmation. Verify footprint compatibility before selection.

Frequently Asked Questions (FAQ)

Q: Can 2N7002LT1G directly replace 2N7002_L99Z in existing designs?

A: Yes. The 2N7002LT1G provides identical electrical specifications (60V Vdss, 115mA Id, 7.5Ω Rds On) and SOT-23-3 packaging. The increased power dissipation rating (225mW vs. 200mW) provides additional thermal margin. Both parts are ROHS3 compliant and have MSL 1 moisture sensitivity rating.

Q: What is the difference between 2N7002L and 2N7002LT1G?

A: Both parts share identical electrical specifications and SOT-23-3 packaging. The primary difference is power dissipation rating: 2N7002L is rated at 200mW while 2N7002LT1G is rated at 225mW. Selection depends on thermal requirements of the specific application.

Q: Can I use 2N7002ET1G or 2N7002KT1G as replacements?

A: These parts are electrically compatible but represent enhanced performance variants. They support higher drain currents (260mA and 320mA respectively) and have lower on-resistance values. They are suitable replacements only if the application can accommodate the different electrical characteristics. Verify that gate drive circuitry and thermal management are appropriate for the selected part.

Q: Why is MMBF0201NLT1G not suitable as a substitute?

A: The MMBF0201NLT1G has a maximum Vdss rating of 20V, which is insufficient for applications requiring 60V operation. This part cannot be used in circuits designed for the 2N7002_L99Z.

Q: What is the difference between SOT-23-3 and SC-89-3 packages?

A: Both are surface mount packages with identical pin configurations and electrical compatibility. SC-89-3 has a smaller physical footprint than SOT-23-3. The 2N7002T in SC-89-3 package is suitable only if the PCB layout and assembly equipment support the smaller package dimensions.

Q: Are all substitute parts ROHS3 compliant?

A: All active substitute parts listed in this document are ROHS3 compliant. The original 2N7002_L99Z does not specify RoHS status. Verify compliance requirements for your specific application and regulatory jurisdiction.

Q: What does MSL 1 (Unlimited) moisture sensitivity rating mean?

A: MSL 1 indicates the component has unlimited shelf life and does not require special moisture control during storage or handling. All parts listed in this document carry MSL 1 rating.

Q: Can I substitute 2N7002 (UMW) for 2N7002_L99Z?

A: The UMW 2N7002 provides equivalent electrical specifications but is designated with generic SOT-23 packaging. Confirm that the specific part number includes TO-236-3 footprint compatibility before selection. The improved on-resistance (5.0Ω vs. 7.5Ω) and increased power dissipation (225mW) are beneficial characteristics.

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