2SD1858 transistor equivalent, silicon npn transistor.
, 2SB1237 。 Low saturation voltage, complements the 2SB1237.
/ Applications
。 Medium power amplifier applications.
/ Equivalent Circuit
/ Pinning
123
PIN1：Base
.
。 Medium power amplifier applications.
/ Equivalent Circuit
/ Pinning
123
PIN1：Base
PIN 2：Collector
PIN 3：Emitte.
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