This part is a kind of semiconductor called A684.

Function of this product has 2SA684.

Manufacturers : Panasonic

Image and pinout :

Some of the text within the PDF file :

Transistors 2SA0683, 2SA0684 (2SA683, 2SA684) Silicon PNP epitaxial planar type Unit: mm ■ Features • Complementary pair with 2SC1383 and 2SC1384 • Allowing supply with the radial taping ■ Absolute Maximum Ratings Ta = 25°C Parameter Collector-base voltage (Emitter open) 2SA0683 2SA0684 VCEO VEBO IC ICP PC Tj Tstg Symbol VCBO Rating −30 −60 −25 −50 −5 −1 −1.5 1 150 −55 to +150 V A A W °C °C V 1 2 3 Unit V 0.45+0.2 –0.1 (1.27) (1.27) 0.45+0.2 –0.1 13.5±0.5 0.7+0.3 –0.2 0.7±0.1 8.6±0.2 For low-frequency power amplification and driver amplification Complementary to 2SC1383, 2SC1384 5.9±0.2 4.9±0.2 Emitter-base voltage (Collector open) Collector current Peak collector current Collector power dissipation Junction temperature [ ... ]

A684 PDF Datasheet Download