2SA1031-B Bipolar Transistor

Characteristics of 2SA1031-B Transistor

  • Type: PNP
  • Collector-Emitter Voltage, max: -30 V
  • Collector-Base Voltage, max: -30 V
  • Emitter-Base Voltage, max: -5 V
  • Collector Current − Continuous, max: -0.1 A
  • Collector Dissipation: 0.3 W
  • DC Current Gain (hfe): 100 to 200
  • Transition Frequency, min: 230 MHz
  • Noise Figure, max: 5 dB
  • Operating and Storage Junction Temperature Range: -55 to +150 °C
  • Package: TO-92

Pinout of 2SA1031-B

The 2SA1031-B is manufactured in a plastic TO-92 case. When looking at the flat side with the leads pointed downward, the three leads emerging from the transistor are, from left to right, the emitter, collector, and base leads.
Here is an image showing the pin diagram of this transistor.

Classification of hFE

The 2SA1031-B transistor can have a current gain of 100 to 200. The gain of the 2SA1031 will be in the range from 100 to 500, for the 2SA1031-C it will be in the range from 160 to 320, for the 2SA1031-D it will be in the range from 250 to 500.

Marking

Sometimes the "2S" prefix is not marked on the package - the 2SA1031-B might only be marked "A1031-B".

Complementary NPN transistor

The complementary NPN transistor to the 2SA1031-B is the 2SC458-B.

Replacement and Equivalent for 2SA1031-B transistor

You can replace the 2SA1031-B with the 2N4058, 2N4059, 2N4061, 2N4951, 2N4952, 2N4954, 2N5366, 2SA1015, 2SA1020, 2SA1032, 2SA1032-B, 2SA1048, 2SA1150, 2SA1150-O, 2SA1246, 2SA1246-R, 2SA1266, 2SA1267, 2SA1270, 2SA1271, 2SA1271-O, 2SA1273, 2SA1273-O, 2SA1283, 2SA1317, 2SA1317-R, 2SA1318, 2SA1318-R, 2SA1391, 2SA1391-R, 2SA1392, 2SA1392-R, 2SA1481, 2SA1481-E, 2SA1522, 2SA1523, 2SA1524, 2SA1525, 2SA1526, 2SA1527, 2SA1528, 2SA1529, 2SA1534A, 2SA1619A, 2SA200, 2SA562TM, 2SA608, 2SA608-E, 2SA684, 2SA720, 2SA733, 2SA928A, 2SA928A-O, 2SA950, 2SA950-O, 2SA953, 2SA966, 2SA966-O, 2SA984, 2SA984-E, 2SA993, 2SA993C, 2SB1229, 2SB1229-R, 2SB740, 2SB740-B, 2SB764, 2SB764-E, 2SB892, 2SB892-R, 2SB985, 2SB985R, A1015, A733, BC212, BC212A, BC636, H733, KSA1015, KSA539C, KSA708C, KSA733C, KSA928A, KSA928A-O, KSA931, KSP2907AC, KSP8598C, KTA1266, KTA1267, KTA1270, KTA1271, KTA1271O, KTA1272, KTA1272O, KTA1273, KTA1273O, KTA1281, KTA1282, KTA1282O, KTA200, KTA708, KTA708-Y, KTB764, KTB764-Y, PN3644, PN3645, STB1277 or STB1277-O.
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