2N7002L MOSFET: Complete Guide to onsemi's 60V N-Channel SOT-23 Switch — Specs, Alternatives, and Buying Guide

The 2N7002L is an N-channel enhancement-mode MOSFET from onsemi built on high cell density trench MOSFET technology, designed for low-voltage, low-current switching. It delivers a drain-source voltage rating of 60V, a continuous drain current of 115mA, and a typical on-state resistance of 7.5Ω in a compact SOT-23-3 surface-mount package. With a threshold voltage of 1V to 2.5V, it is a logic-level device that fully enhances with a 5V gate drive, simplifying direct interfacing with microcontrollers. The part is RoHS compliant, lead-free, and halogen-free. As of 2026-09-04, the 2N7002L is in stock at XAIPART with 99,999 units available, priced from $0.10 (qty 1) down to $0.03 (qty 1,000), with MOQ of 1. This guide covers selection, design-in practices, drop-in alternatives, and market outlook for this widely used small-signal MOSFET.

What Is the 2N7002L and Why Do Engineers Choose It?

The 2N7002L is a small-signal N-channel MOSFET positioned in the hierarchy MOSFET → field-effect transistor → transistor → semiconductor device. As an enhancement-mode device, it is normally off and requires a positive gate-source voltage to conduct. onsemi manufactures it using trench MOSFET technology, which minimizes on-state resistance while providing rugged and fast switching.

Engineers choose the 2N7002L for three verified reasons: (1) its 60V Vds rating provides generous headroom for low-voltage loads, (2) its logic-level gate threshold of 1V to 2.5V allows direct drive from 3.3V and 5V logic, and (3) its SOT-23-3 package fits space-constrained, high-density PCB layouts. The device also tolerates gate-source voltages up to ±20V and dissipates up to 225mW, and it operates across the full industrial temperature range of -55°C to +150°C.

How Do You Select and Design In the 2N7002L?

Follow this selection and design-in workflow to avoid the most common failure modes with the 2N7002L.

Step 1: Verify Voltage and Current Margins

Confirm your load voltage stays below the 60V Vds rating and your continuous current stays below 115mA at 25°C ambient. The 60V rating provides a safety margin for inductive loads, per the verified application data. For higher current needs, the pin-compatible 2N7002K offers 300mA.

Step 2: Check Gate Drive Compatibility

The 2N7002L fully enhances with a 5V gate drive, and its threshold voltage of 1V to 2.5V allows use with 3.3V logic. In level-shift roles, the 3.3V drive is sufficient for full enhancement. Never exceed the ±20V Vgs maximum — use a gate pull-down resistor and, in noisy environments, [DATA_NEEDED: recommended gate protection circuitry].

Step 3: Manage Power Dissipation

With Rds(on) of 7.5Ω typical and a package dissipation limit of 225mW, compute conduction loss as P = I² × Rds(on). At the full 115mA rating, conduction loss is approximately 0.115² × 7.5 ≈ 99mW — well within the 225mW limit, leaving margin for switching losses. Verify actual Rds(on) at your specific gate voltage and temperature, as the exact value varies, as detailed in the onsemi datasheet.

Step 4: Handle Switching Behavior

The 2N7002L's trench technology delivers fast switching, making it suitable for PWM control of small servo motors and switching roles in low-power DC-DC converters. For high-frequency design, the total gate charge and input capacitance values are important — [DATA_NEEDED: total gate charge] and [DATA_NEEDED: input capacitance] are not specified in the current database; consult the datasheet.

Step 5: Confirm Pinout and Thermal Layout

The SOT-23-3 pinout is standard: pin 1 is Gate, pin 2 is Source, and pin 3 is Drain. The SOT-23 package offers a small footprint with a thermal resistance of [DATA_NEEDED: thermal resistance], so for designs near the 225mW limit, maximize copper area around the pads to aid heat dissipation.

Which Components Are Drop-In Alternatives to the 2N7002L?

The best drop-in replacement is the onsemi 2N7002K, which is pin-compatible and offers higher current and lower on-resistance. Other verified alternatives include the standard 2N7002, the BSS138, the 2N7002LT1G (same die, packaging suffix), the 2N7002E, and the 2N7002DW dual version (single-channel pinout may differ).

Choose the 2N7002L when your application requires only up to 115mA and cost matters; choose the 2N7002K for higher current or lower power loss. Always verify pinout and specs before substitution — the 2N7002DW's dual configuration means its single-channel pinout may differ.

What Is the Market Position, Lifecycle, and Supply Situation of the 2N7002L?

The 2N7002L carries an active lifecycle status, meaning onsemi continues to produce it and it is not end-of-life or discontinued. As of 2026-09-04, XAIPART holds 99,999 units in stock with a minimum order quantity of just 1 unit, making it accessible for both prototyping and volume production. Pricing is highly favorable at volume: $0.10 at qty 1, $0.08 at qty 10, $0.05 at qty 100, $0.04 at qty 500, and $0.03 at qty 1,000. For [DATA_NEEDED: formal production lifecycle declaration or PCN status], consult the manufacturer. Note that the part is not AEC-Q101 qualified, so automotive designers requiring that qualification should verify alternatives.

What Trends Should Buyers Watch for the 2N7002L?

Buyers should anchor their planning to the verified specs and supply data. First, the active lifecycle status and deep stock (99,999 units as of 2026-09-04) indicate no near-term supply concern for prototype and production orders. Second, the price curve — a 70% drop from $0.10 to $0.03 between qty 1 and qty 1,000 — rewards consolidating purchases into 1,000-piece reels for production builds. Third, designers migrating to higher current or lower loss designs should evaluate the pin-compatible 2N7002K (300mA, 1.2Ω) early, since its lower Rds(on) cuts conduction losses by roughly 6× at equal current. Fourth, because the 2N7002L is not AEC-Q101 qualified, automotive and other qualification-driven programs should verify compliance requirements before design freeze. Finally, always confirm the exact Rds(on) at your operating gate voltage from the onsemi datasheet before finalizing thermal and efficiency calculations, since the 7.5Ω typical value varies with gate voltage and temperature.

Where Can You Buy the 2N7002L?

Purchase the 2N7002L directly on XAIPART with 99,999 units in stock as of 2026-09-04 and MOQ of 1. Download the full specifications from the onsemi 2N7002L datasheet PDF, and visit the [2N7002L product page](/products/2n7002l) for real-time pricing, inventory, and ordering.