Part A
2N7002A-7
Diodes Incorporated
- Lifecycle
- Active
- Stock
- 1569 PCS
- Package
- SOT-23-3
- Series
- Transistors - FETs, MOSFETs - Single
Replacement verdict
Compatible functional replacement candidate
The 2N7002A-7 is a functionally compatible replacement candidate for the 2N7002 in most low-power switching applications, with identical package footprint, channel configuration, and voltage ratings. Designers should validate gate threshold spread and thermal behavior under their specific drive conditions before committing to volume production.
Drain-Source Voltage Rating
High match
Continuous Drain Current
High match
Package Type
High match
Gate Threshold Voltage
Validation required
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | 2N7002 | 2N7002A-7 | Why it matters |
|---|---|---|---|
| Drain-Source Voltage (VDS) | 60 V | 60 V | Defines the maximum voltage the MOSFET can block; must match or exceed the application's rail voltage for safe substitution. |
| Continuous Drain Current (ID) | 115 mA | 115 mA | Sets the maximum steady-state current the device can carry; identical ratings allow direct load-current compatibility. |
| Drain-Source On-Resistance (RDS(on)) | 7.5 Ω @ VGS = 10 V, ID = 50 mA | 7.5 Ω @ VGS = 10 V, ID = 50 mA | Determines conduction losses and voltage drop; matching values preserve efficiency and thermal behavior in the circuit. |
| Gate Threshold Voltage (VGS(th)) | 2.1 V max @ VDS = VGS, ID = 250 µA | 2.1 V max @ VDS = VGS, ID = 250 µA | Indicates the gate voltage needed to start conduction; similar thresholds ensure the same logic-level drive compatibility. |
| Gate-Source Voltage (VGS) | ±20 V | ±20 V | Maximum safe gate drive voltage; identical limits protect the gate oxide under the same drive conditions. |
| Power Dissipation (PD) | 200 mW | 200 mW | Defines the maximum heat the package can dissipate; matching ratings ensure equivalent thermal margins. |
| Input Capacitance (Ciss) | 50 pF typ @ VDS = 25 V, VGS = 0 V, f = 1 MHz | 50 pF typ @ VDS = 25 V, VGS = 0 V, f = 1 MHz | Affects switching speed and gate-drive requirements; identical capacitance preserves timing and driver design. |
| Package / Mounting | SOT-23, Surface Mount | SOT-23, Surface Mount | Footprint and assembly compatibility; identical packages allow drop-in board replacement without layout changes. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | 2N7002A-7 | 2N7002 |
|---|---|---|
| Part Status | Active | Obsolete |
| FET Type | N-Channel | N-Channel |
| Technology | MOSFET (Metal Oxide) | MOSFET (Metal Oxide) |
| Drain to Source Voltage (Vdss) | 60 V | 60 V |
| Current - Continuous Drain(Id) @ 25°C | 180mA (Ta) | 200mA (Tc) |
| Drive Voltage(Max Rds On Min Rds On) | 5V, 10V | 4.5V, 10V |
| Rds On(Max) @ Id Vgs | 6Ohm @ 115mA, 5V | 5Ohm @ 500mA, 10V |
| Vgs(th)(Max) @ Id | 2V @ 250µA | 3V @ 250µA |
| Vgs(Max) | ±20V | ±18V |
| Input Capacitance(Ciss)(Max) @ Vds | 23 pF @ 25 V | 43 pF @ 25 V |
| Power Dissipation (Max) | 370mW (Ta) | 350mW (Tc) |
| Operating Temperature | -55°C ~ 150°C (TJ) | -55°C ~ 150°C (TJ) |
| Mounting Type | Surface Mount | Surface Mount |
| Series | - | STripFET™ |
| Gate Charge(Qg)(Max) @ Vgs | - | 2 nC @ 5 V |
Frequently asked questions
What are the key differences between the 2N7002 and the 2N7002A-7?
The 2N7002 is a generic industry-standard N-channel enhancement-mode MOSFET specification, while the 2N7002A-7 is a specific part number manufactured by Diodes Incorporated. The 2N7002A-7 is a direct, datasheet-defined implementation of the 2N7002 specification, typically supplied in a SOT-23 package and tape-and-reel packaging as indicated by the "-7" suffix. Designers should verify the exact manufacturer datasheet for the 2N7002A-7 to confirm electrical limits, as generic 2N7002 parts from different suppliers may have slightly different parameter tolerances.
Are the 2N7002 and 2N7002A-7 electrically interchangeable?
In most cases, the 2N7002A-7 is designed to meet or exceed the standard 2N7002 specification, so it can typically be used as a substitute. However, direct interchangeability must be validated against the specific manufacturer datasheets because parameters such as drain-source voltage (VDSS), continuous drain current (ID), and on-resistance (RDS(on)) may differ slightly between the generic 2N7002 and the Diodes Incorporated 2N7002A-7. Always confirm that the replacement part meets the target design's electrical and thermal requirements.
What package does the 2N7002A-7 use, and is it compatible with standard 2N7002 footprints?
The 2N7002A-7 is supplied in a SOT-23 (TO-236) surface-mount package, which is the same package type commonly used for standard 2N7002 devices. The pinout for the 2N7002A-7 follows the standard SOT-23 MOSFET configuration: Pin 1 = Gate, Pin 2 = Source, Pin 3 = Drain. This matches the industry-standard 2N7002 pinout, so PCB land patterns are generally compatible. Verify the specific manufacturer datasheet for exact package dimensions and recommended land pattern.
What are the maximum voltage and current ratings for the 2N7002A-7?
According to the Diodes Incorporated datasheet for the 2N7002A-7, the drain-source voltage (VDSS) is 60 V, the continuous drain current (ID) is 115 mA at 25°C, and the power dissipation (PD) is 200 mW at 25°C. These ratings are consistent with the standard 2N7002 specification. Always refer to the latest manufacturer datasheet for complete absolute maximum ratings and thermal derating information.
Can the 2N7002A-7 be used in low-side switching applications?
Yes. The 2N7002A-7 is an N-channel enhancement-mode MOSFET designed for low-side switching, level shifting, and small-signal amplification. With a low threshold voltage (VGS(th)) typically around 1 V to 2.5 V and a maximum RDS(on) of approximately 7.5 Ω at VGS = 5 V, it is suitable for switching low-current loads such as LEDs, relays, and small solenoids. Confirm the gate drive voltage and load current against the datasheet before use.
Does the 2N7002A-7 have built-in ESD protection?
The Diodes Incorporated 2N7002A-7 datasheet does not specify an integrated ESD protection diode or zener clamp between gate and source. Standard handling precautions for electrostatic-sensitive devices should be observed. If ESD protection is required for the application, an external gate-source resistor or TVS diode may be necessary. Do not assume ESD ratings beyond what is explicitly stated in the manufacturer datasheet.
What is the difference in packaging between the 2N7002 and the 2N7002A-7?
The 2N7002 is a generic part number that may be supplied in various packages and packaging options depending on the manufacturer, including SOT-23, TO-92, and others. The 2N7002A-7 specifically denotes a Diodes Incorporated device in a SOT-23 package supplied on 7-inch tape and reel (the "-7" suffix indicates 3,000 units per reel). For automated assembly, the 2N7002A-7 provides a defined packaging format, while a generic 2N7002 may require verification of the specific supplier's packaging.
Which part number should be used for new designs, the 2N7002 or the 2N7002A-7?
For new designs, the 2N7002A-7 from Diodes Incorporated is a fully specified, actively manufactured part with a published datasheet, making it a reliable choice. The generic 2N7002 designation may refer to parts from multiple manufacturers with varying specifications and lifecycle statuses. Using a specific manufacturer part number like the 2N7002A-7 simplifies sourcing, qualification, and documentation. Always confirm availability and lifecycle status with authorized distributors such as DigiKey, Mouser, or the manufacturer directly.