This part is a kind of semiconductor called AN7586.

Function of this product has Silicon Monolithic Bipolar IC.

Manufacturers : Matsushita Electronics Corporation

Image and pinout :

Some of the text within the PDF file :

Prepared Checked Approved Product Specifications Ref No. Total Page A- 1 12 1 AN7586 Structure Appearance Application Function Silicon Monolithic Bipolar IC SIL-7 Pins Plastic Package (Power Type With Fin) Low Frequency Amplifier Page No. Mono 10W Audio Power Amplifier, with standby circuit and incorporating protection circuits A No. 1 2 3 4 5 6 7 8 Item Storage Temperature Absolute Maximum Ratings Symbol Tstg Topr Popr Gopr Sopr Vcc Icc PD Ratings -55 ~ +150 -25 ~ +75 1.013x10 ±0.61x10 (1.0 ± 0.6) 5 5 Unit °C °C Pa (atm) Note 1 1 2 2 Operating Ambient Temperature Operating Ambient Pressure Operating Constant Acceleration Operating Shock Power Supply V oltage Power Supply Current Power Dissipation 9,810 (1,000) 4,900 (500) m/s (G) m/s (G) 35.0 2.0 18.7 V A W 2 Operati [ ... ]

AN7586 PDF Datasheet Download