Spark Logic

2N7002 N-channel MOSFET family pinout

K72 appears on single 2N7002 and dual 2N7002DW MOSFETs. Check the package before choosing a pin map.

SOT-23 · single 3 contacts

SOT-323 · single

3 contacts Current package
SOT-523 · single 3 contacts
SOT-363 · dual 6 contacts

Diodes Incorporated / PANJIT / MCC / Jiangsu Changjing · PANJIT 2N7002KW; 1.80–2.20 mm package body length.

SOT-323 · single pinout

SOT-323 · single
Top view, single lead at the top. Pin 1 is lower left, pin 2 lower right and pin 3 at the top.
Selected pin details

1 · G

Input · Control

Gate. Drive relative to its own source. A gate threshold measurement does not establish low on-resistance.

PANJIT 2N7002KW Rev. 02S, p. 1

Electrical limits · Link to this pin

Check low-side switching

Check low-side switching5 V1 kΩMeasure D0 / 10 VGate GND
  • Load supply
    • Current-limited 5 V supply
    • RL.1
  • Drain
    • RL.2
    • Meter positive
  • Gate drive
    • →
    • Switchable 0 V / 10 V drive
  • Return
    • Meter common
    • Gate supply return
    • Load supply return

Connection guide

All 3 pins

PinSignalDirectionFunction
1G InputInput Gate. Drive relative to its own source. A gate threshold measurement does not establish low on-resistance.
2S TerminalTerminal Source. Connect to ground for a low-side test and use as the gate voltage reference.
3D TerminalTerminal Drain. Connect to the load in the low-side test. The intrinsic body diode conducts from source toward drain.

Signal assignments

Single MOSFET

Test the gate, drain and source for this channel together.

Electrical limits

ParameterLimitConditions and source
On-resistance4 Ω max4 Ω max VGS = 4.5 V, ID = 200 mA in the datasheet test. Check the separate continuous-current rating. PANJIT 2N7002KW Rev. 02S, p. 2

Models and documents

The reported K72 K 4 has three leads (1+2). That fits the documented single MOSFETs in SOT-23, SOT-323 or SOT-523 and rules out the six-lead 2N7002DW for this specimen. Measure the moulded body, excluding leads: roughly 2.9 mm for SOT-23, 2.0 mm for SOT-323 and 1.6 mm for SOT-523. Diodes documents K72 plus a separate two-character date code; the format alone does not identify the manufacturer.

2N7002KW
SOT-323 with K72 top code and gate ESD protection.