Details

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BUY NEC2502 https://www.utsource.net/itm/p/11547600.html

Parameter	Description	Value
Part Number	Unique identifier for the component	NEC2502
Type	Category of the component	Bipolar Transistor
Polarity	Type of transistor polarity	NPN
Collector-Emitter Voltage (Vce)	Maximum voltage that can be applied between the collector and emitter terminals	45 V
Collector-Base Voltage (Vcb)	Maximum voltage that can be applied between the collector and base terminals	50 V
Emitter-Base Voltage (Veb)	Maximum voltage that can be applied between the emitter and base terminals	5 V
Collector Current (Ic)	Maximum continuous current that can flow through the collector terminal	1 A
Power Dissipation (Ptot)	Maximum power that the transistor can dissipate	65 W
Operating Temperature Range	Temperature range within which the component is designed to operate	-55掳C to +150掳C
Storage Temperature Range	Temperature range within which the component can be stored without damage	-65掳C to +150掳C
Transition Frequency (fT)	Frequency at which the current gain (hfe) drops to unity	300 MHz
DC Current Gain (hFE)	Ratio of the collector current to the base current under DC conditions	100 to 300
Package Type	Physical package of the component	TO-220
Mounting Type	Method of mounting the component	Through-hole

Instructions for Use:

1. Handling:

   • Handle the NEC2502 with care to avoid damage to the leads or the body.
   • Use proper ESD (Electrostatic Discharge) precautions to prevent damage from static electricity.

2. Mounting:

   • Ensure that the leads are not bent too close to the body to avoid mechanical stress.
   • Use a heat sink if the power dissipation exceeds the safe operating limits without it.
   • Apply thermal compound between the transistor and the heat sink to improve thermal conductivity.

3. Soldering:

   • Preheat the component and the PCB to reduce thermal shock.
   • Use a soldering iron with a temperature setting appropriate for the component (typically 300掳C to 350掳C).
   • Solder each lead for no more than 3 seconds to avoid overheating the transistor.

4. Biasing:

   • Ensure that the base-emitter and base-collector junctions are properly biased to avoid exceeding the maximum ratings.
   • Use a current-limiting resistor in series with the base to control the base current and prevent excessive collector current.

5. Operation:

   • Monitor the temperature of the transistor during operation to ensure it stays within the specified operating temperature range.
   • Avoid operating the transistor at the maximum ratings continuously to extend its lifespan and reliability.

6. Storage:

   • Store the NEC2502 in a dry, cool place to prevent moisture damage.
   • Keep the components in their original packaging until ready for use to protect them from physical damage and ESD.

(For reference only)