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 Current package

SOT-323 · single 3 contacts

SOT-523 · single 3 contacts

SOT-363 · dual 6 contacts

Diodes Incorporated / PANJIT / MCC / Jiangsu Changjing · Diodes 2N7002. Pin 1 gate, pin 2 source, pin 3 drain.

SOT-23 · single pinout

SOT-23 · 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.

Diodes DS11303 Rev. 40-2, p. 1

Electrical limits · Link to this pin

Check low-side switching

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

Pin	Signal	Direction	Function
1	G Input	Input	Gate. Drive relative to its own source. A gate threshold measurement does not establish low on-resistance.
2	S Terminal	Terminal	Source. Connect to ground for a low-side test and use as the gate voltage reference.
3	D Terminal	Terminal	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

Parameter	Limit	Conditions and source
On-resistance5 Ω max	5 Ω max	VGS = 10 V, ID = 0.5 A in the datasheet pulse test. Use the separate continuous-current limit. Diodes DS11303 Rev. 40-2, 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.

2N7002-7-F: Diodes Incorporated K72 device code, tape and reel.
2N7002-13-F: Diodes Incorporated K72 device code, tape and reel.
2N7002K: PANJIT SOT-23, K72, with gate ESD protection.

Datasheet for PANJIT 2N7002K· Rev. 00S; SOT-23 pinout, K72 marking and limits.
Datasheet for PANJIT 2N7002KW· Rev. 02S; SOT-323 pinout, K72 marking and limits.
Datasheet for Diodes 2N7002· DS11303 Rev. 40-2; SOT-23 pinout and K72 marking.
Datasheet for JSCJ 2N7002DW· Rev. 1.1; SOT-363 pinout and K72 marking.
Datasheet for MCC 2N7002T· Rev. 3-1; SOT-523 pinout, K72 marking and ratings.
MCC 2N7002T marking change notice· ECN 062121-1 confirms K72 for the SOT-523 candidate; the notice is not a pinout.
Source register· Original document URLs, revisions and file checksums.