2SD669TA transistor equivalent, silicon npn transistor.
2SB649TA 。 Complementary pair with 2SB649TA.
/ Applications 。 Low frequency power amplifier.
/ Equivalent Circuit
/ Pinning
1 2 3
PIN1：Base
PIN 2：Collector
.
。 Low frequency power amplifier.
/ Equivalent Circuit
/ Pinning
1 2 3
PIN1：Base
PIN 2：Collector
/ Marking
hFE C.
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