Different Between Component

Different Between Component

            There we have different between  from a same component that take from the magazine and after the component buy at store of 'Jalan Pasar'. The component is transistor (in circuit TR1). Transistor's serial number from magazine is TIPP31C npn and after buy they give transistor that have serial number give is TIP31C. The problem is, that both of transistor is the same component or other type of transistor?

Transistor TIPP31C  Datasheet.

Name: TIPP31C

Material of transistor: Si

Polarity: npn

Maximum collector power dissipation (Pc): 800mW

Maximum collector-base voltage (Ucb): 100V

Maximum collector-emitter voltage (Uce): 100V

Maximum emitter-base voltage (Ueb): 5V

Maximum collector current (Ic max): 2A

Maximum junction temperature (Tj): 150°C

Transition frequency (ft):

Collector capacitance (Cc), Pf:

Forward current transfer ratio (hFE), min/max: 20T

Manufacturer of TIPP31C transistor: TI

Package of TIPP31C transistor: TO92

Application: Medium Power, General Purpose

Transistor TIP31C Datasheet

DESCRIPTION

The UTC TIP31C is a NPN expitaxial planar transistor,

designed for using in general purpose amplifier and switching

Collector Base Voltage:100 V

Collector to Emitter Voltage: 100 V

Emitter To Base Voltage: 5 V

Collector Current(DC) IC: 3 A

Collector Current(Pulse) IC: 5 A

Base Current: 1 A

Collector Dissipation(Tc=25°C): 40 W

Collector Dissipation(Ta=25°C):2 W

Junction Temperature Tj: 150 °C

Storage Temperature: -65 ~ +150 °C