2SB647(A)。 Complementary pair with 2SB647(A). / Applications 。 Low frequency power amplifier. / Equivalent Circuit / Pinning 123 PIN1：Base PIN 2：Collector PIN.

。 Low frequency power amplifier. / Equivalent Circuit / Pinning 123 PIN1：Base PIN 2：Collector PIN 3：Emitter / .

TO-92LM NPN 。Silicon NPN transistor in a TO-92LM Plastic Package.  / Features 2SB647(A)。 Complementary pair with 2SB647(A). / Applications 。 Low frequency power amplifier. / Equivalent Circuit / Pinning 123 PIN1：Base PIN 2：Collector .

2SD661

2SD661A

2SD662

2SD662B

2SD663

2SD664

2SD665

2SD666

2SD666A

2SD667A

2SD668

2SD668A

2SD669

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