Parts · Transistors

2G381

Ge PNP BJT TH.5 circuits use this part. Listed as: PNP Germanium; Transistor 2G381.

Substitutes Ge PNP transistor

Matched on material, polarity and the limits below from the transistor parameter database. Pinouts and packages are not in that data: check the datasheet before you drop one in, and expect gain to change the sound.

This part

Part	hFE min	Vce	Ic	Pc	fT
2G381	75	20 V	500 mA	0.25 W	1 MHz

Used on other boards here

Part	hFE min	Vce	Ic	Pc	fT	Boards
2N526	65	30 V	500 mA	0.225 W	1 MHz	1
2N527	80	30 V	500 mA	0.225 W	2 MHz	2
GT402B	60	25 V	500 mA	0.6 W	1 MHz	2
ACY41	50	18 V	500 mA	0.26 W	1 MHz	5
ASY33	90	30 V	300 mA	0.15 W	0.5 MHz	1
NKT213	50	18 V	250 mA	0.2 W	0.5 MHz	12
OC83N	40	20 V	1000 mA	0.22 W	1 MHz	1
MP20A	50	20 V	300 mA	0.15 W	2 MHz	1

Closest by the numbers

Part	hFE min	Vce	Ic	Pc	fT
AC554	75	24 V	300 mA	0.22 W	1 MHz
SFT253	80	20 V		0.225 W	1 MHz
SFT125	70	20 V	500 mA	0.35 W	1 MHz
ACY19	80	30 V	500 mA	0.26 W	1 MHz
SFT242	70	30 V	550 mA	0.225 W	1 MHz
SFT323	85	18 V	250 mA	0.2 W	1 MHz
ACY21	90	20 V	500 mA	0.26 W	1 MHz
SFT325	70	16 V	500 mA	0.5 W	1 MHz

Circuit	Based on	Category	Vendor	Box	Knobs	Price	BOM
Bend Toner 2G381 · OC75 Sola Sound Tone Bender MKI · 1590B	Sola Sound Tone Bender MKI	Fuzz	HotKits	1590B	2	$1.50	17
Tone Bender MKI 2G381 · OC75 · TC1044 · TC1044SCPA Sola Sound Tone Bender MKI	Sola Sound Tone Bender MKI	Fuzz	PCBWay: Glory to Ukraine	—	2	—	20
Tone Vendor MKI 2G381 · OC75 · TC1044 · TC1044SCPA Sola Sound Tone Bender MKI · 125B	Sola Sound Tone Bender MKI	Fuzz	PedalPCB	125B	2	$8.00	23
Gary Hurst Tone Bender MKI Vero 2G381 · OC75 Gary Hurst Tonebender MKI	Gary Hurst Tonebender MKI	Fuzz	Revolution Deux	—	2	—	20
Sola Sound Tone Bender MKI Perfboard 2G381 · OC75 Sola Sound Tone Bender MKI	Sola Sound Tone Bender MKI	Fuzz	Revolution Deux	—	2	—	18