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Contents

Pinout
Key specifications
Electrical characteristics
CAD (KiCad official)
Provenance

README

markdown

BRCS3420MC

Foshan Blue Rocket Elec · MOSFETs · SOT-23

BRCS3420MC from Foshan Blue Rocket Elec, in a SOT-23. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin	Name	Type	Function
1	G	input	Gate terminal of the N-channel MOSFET; the absolute maximum gate-source voltage is ±12 V and the gate threshold voltage VGS(th) is 0.5 V to 1 V.
2	S	passive	Source terminal of the N-channel MOSFET; the body diode forward voltage VSD is 0.75 V typical and 1 V maximum at IS = 1 A.
3	D	passive	Drain terminal of the N-channel MOSFET; the drain-source breakdown voltage BVDSS is 20 V minimum and the continuous drain current is 6 A at Ta = 25 ℃.

Key specifications

Parameter	Value
Manufacturer	Foshan Blue Rocket Elec
Package	SOT-23
Category	Transistors/Thyristors
Pins	3

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter	Symbol	Min	Typ	Max	Unit	Conditions	Page
Drain-Source Voltage	VDS			20	V		2
Drain Current, Continuous	ID			6	A		2
Drain Current, Continuous	ID			5	A	Ta=70℃	2
Pulsed Drain Current	IDM			25	A		2
Gate-Source Voltage	VGS	-12		12	V		2
Total Power Dissipation	PD			1.4	W		2
Total Power Dissipation	PD			0.9	W	Ta=70℃	2
Operating and Storage Junction Temperature Range	TJ, TSTG	-55		150	℃		2
Drain-Source Breakdown Voltage	BVDSS	20			V	VGS=0V ID=250μA	2
Zero Gate Voltage Drain Current	IDSS			1	μA	VDS=16V VGS=0V	2
Zero Gate Voltage Drain Current	IDSS			5	μA	VDS=16V VGS=0V TJ=55℃	2
Gate-Body Leakage	IGSS	-0.1		0.1	μA	VGS=±12V VDS=0V	2
On-State Drain Current	ID(on)	25			A	VGS=4.5V VDS=5V	2
Gate Threshold Voltage	VGS(th)	0.5	0.7	1	V	VDS=VGS ID=250μA	2
Static Drain-Source On-Resistance	RDS(on)1		18	24	mΩ	VGS=10V ID=6A	2
Static Drain-Source On-Resistance	RDS(on)2		29	35	mΩ	VGS=10V ID=6A TJ=125℃	2
Static Drain-Source On-Resistance	RDS(on)3		20	27	mΩ	VGS=4.5V ID=5A	2
Drain-Source Diode Forward Voltage	VSD		0.75	1	V	VGS=0V IS=1A	2
Forward Transconductance	gFS		24		S	VDS=5V ID=3.8A	2
Input Capacitance	Ciss		630		pF	VDS=10V VGS=0V f=1MHz	2
Output Capacitance	Coss		164		pF	VDS=10V VGS=0V f=1MHz	2
Reverse Transfer Capacitance	Crss		137		pF	VDS=10V VGS=0V f=1MHz	2
Turn-On Delay Time	td(on)		5.5		ns	VGS=5V RL=1.7Ω VDS=10V RGEN=6Ω	2
Turn-On Rise Time	tr		14		ns	VGS=5V RL=1.7Ω VDS=10V RGEN=6Ω	2
Turn-Off Delay Time	td(off)		29		ns	VGS=5V RL=1.7Ω VDS=10V RGEN=6Ω	2
Turn-Off Fall Time	tf		10.2		ns	VGS=5V RL=1.7Ω VDS=10V RGEN=6Ω	2

CAD (KiCad official)

Symbol: BRCS3420MC
Footprint: Package_TO_SOT_SMD:SOT-23
3D model: SOT-23 (KiCad packages3D, STEP)
3D model files: brcs3420mc-etched.step / brcs3420mc-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); brcs3420mc.step / brcs3420mc.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

Datasheet: Foshan Blue Rocket Elec datasheet (6 pp, sha256 8bc76fbb69238f5a, retrieved 2026-10-18, tier: lcsc)
Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF