Parts · Transistors

2SC945-P

Si NPN BJT TO-92 TH.5 circuits use this part.

Substitutes Si 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
2SC945	75	40 V	100 mA	0.25 W	125 MHz

Used on other boards here

Part	hFE min	Vce	Ic	Pc	fT	Boards
2N3416	75	50 V	500 mA	0.36 W		1
2SC828A	65	45 V	50 mA	0.25 W	110 MHz	1
2SC828	65	30 V	50 mA	0.25 W	110 MHz	27
2SC2458	70	50 V	150 mA	0.2 W	80 MHz	10
MPS6513	90	30 V	100 mA	0.31 W	125 MHz	6
2SC1815	70	50 V	150 mA	0.4 W	80 MHz	85
2SC2712	70	50 V	150 mA	0.15 W	80 MHz	1
2SC536	60	30 V	100 mA	0.2 W	115 MHz	4

Closest by the numbers

Part	hFE min	Vce	Ic	Pc	fT
BSW88	75	30 V	100 mA	0.3 W
BSW89	75	30 V	100 mA	0.3 W
BC207	75	45 V	100 mA	0.3 W	150 MHz
BSW42A	75	50 V	200 mA	0.3 W	150 MHz
BSW42AK	75	50 V	200 mA	0.3 W	150 MHz
BSX51A	75	50 V	200 mA	0.3 W	150 MHz
2N6222	75	60 V	100 mA	0.36 W
BFT30CSM	75	60 V	1000 mA	0.36 W

Circuit	Based on	Category	Vendor	Box	Knobs	Price	BOM
BOSS BF-2 2SA733-P · 2SC732TM-GR · 2SC945-P · 2SK30A-Y Boss BF-2 Flanger	Boss BF-2 Flanger	Flanger	Experimentalists Anonymous	—	4	—	139
BOSS CE-300 2SC732TM-GR · 2SC945-P · 2SD880-O · 2SK30ATM-GR Boss CE-300	Boss CE-300	Vibrato / Chorus	Experimentalists Anonymous	—	5	—	291
BOSS DM-2 2SC732TM-GR · 2SC945-P · 2SK30ATM-Y · MN3005 Boss DM-2	Boss DM-2	Delay	Experimentalists Anonymous	—	3	—	112
BOSS DM2 2SC732TM-GR · 2SC945-P · 2SK30ATM-Y · MN3005 Boss DM-2	Boss DM-2	Delay	Experimentalists Anonymous	—	3	—	112
BOSS TW-1 2SA1015-Y · 2SC732TM-GR · 2SC945-P · 2SK30ATM-Y Boss TW-1	Boss TW-1	Other	Experimentalists Anonymous	—	2	—	99