Parts · Transistors

NTE103

2 circuits use this part. Listed as: Germanium transistor, NPN, TO-5.

Substitutes Ge NPN 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
NTE103	90	16 V	250 mA	0.15 W	2 MHz

Used on other boards here

Part	hFE min	Vce	Ic	Pc	fT	Boards
AC187	100	15 V	2000 mA	0.225 W	1 MHz	1
2SD352	100	30 V	1000 mA	0.6 W		2
2N1308	80	15 V	300 mA	0.15 W	12 MHz	6
2N1306	60	15 V	300 mA	0.15 W	8 MHz	1
AC176	52	20 V	1000 mA	0.22 W	1 MHz	7
AC127	50	12 V	500 mA	0.34 W	1.5 MHz	3
GT404B	60	25 V	500 mA	0.6 W	1 MHz	1
2N1304	40	20 V	300 mA	0.15 W	4 MHz	2

Closest by the numbers

Part	hFE min	Vce	Ic	Pc	fT
2SC71	100	15 V	200 mA	0.15 W
2SC72	100	12 V	200 mA	0.15 W
AC194	90	15 V	1000 mA	1 W	1 MHz
2SC406	120	18 V	200 mA	0.125 W	4 MHz
NKT738	80	15 V	300 mA	0.15 W	12 MHz
2SC405	60	18 V	200 mA	0.125 W	4 MHz
AC186	60	18 V	700 mA	0.215 W	1 MHz
2N1624	60	20 V	300 mA	0.15 W	5 MHz

Faceplate	Circuit	Based on	Category	Vendor	Box	Knobs	Price	BOM
	Polaris Distortion / Sustainer 2N5088 · NTE102 · NTE103	Human Gear Animato	Fuzz	Aion FX	125B	5	$12.50	73
	Diaz Texas Square Face NTE103	—	Fuzz	Experimentalists Anonymous	—	—	—	2