2SA1943 product image


NPN General Purpose Amplifier
FAIRCHILD [Fairchild Semiconductor]
UTC [Unisonic Technologies]
ISC [Inchange Semiconductor Company Limited]
NJSEMI [New Jersey Semi-Conductor Products, Inc.]
SAVANTIC [Savantic, Inc.]

2SA1943 is PNP Epitaxial Silicon Transistor




  •  •High Current Capability: IC = -15A
  • •High Power Dissipation : 150watts
  • •High Frequency : 30MHz
  • •High Voltage : VCEO= -230V
  • •Wide S.O.A for reliable operation
  • •Excellent Gain Linearity for low THD
  • •Complement to 2SC5200/FJL4315
  • •Full thermal and electrical Spice models are available
  • •Same transistor is also available in:

             -- TO3P package, 2SA1962/FJA4213 : 130 watts

             -- TO220 package, FJP1943 : 80 watts

             -- TO220F package, FJPF1943 : 50 watts




  • ·Power amplifier applications
  • ·Recommended for 100W high fidelity audio frequency amplifier output stage
Collector-Base Voltage VCBO-230 V
Collector-Emitter Voltage VCEO-230 V
Emitter-Base Voltage VEBO-5 V
Collector Current IC-15 A
Base Current IB-1.5 A
Collector Power Dissipation (Tc=25℃) PC150 W
Junction Temperature TJ0 to +125 ℃
Storage Temperature Range TSTG-65 to +125 ℃
2SA1943 Replacement Parts
2SA1943 Price
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