2SB649A transistor equivalent, silicon pnp transistor.
2SD669(A)。 Complementary pair with 2SD669(A).
/ Applications
。 Low frequency power amplifier.
/ Equivalent Circuit
/ Pinning
12 3
PIN1：Emitter
PIN 2：Collector.
。 Low frequency power amplifier.
/ Equivalent Circuit
/ Pinning
12 3
PIN1：Emitter
PIN 2：Collector
PIN 3：Base
.
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