Details

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BUY 2SA814 https://www.utsource.net/itm/p/12607518.html

Parameter	Symbol	Value	Unit
Collector-Emitter Voltage	VCEO	50	V
Collector-Base Voltage	VCBO	60	V
Emitter-Base Voltage	VEBO	5	V
Collector Current	IC	500	mA
Base Current	IB	50	mA
Power Dissipation	PT	625	mW
Maximum Junction Temperature	TJ	150	掳C
Storage Temperature Range	TSTG	-55 to 150	掳C
DC Current Gain (hFE)	hFE	70 to 300	-

Instructions for Use:

1. Mounting:

   • Ensure the transistor is mounted on a suitable heat sink if continuous high power dissipation is expected.
   • Avoid mechanical stress on the leads during soldering and handling.

2. Soldering:

   • Use a soldering iron with a temperature not exceeding 300掳C.
   • Solder each lead for no more than 3 seconds to prevent damage to the transistor.

3. Biasing:

   • Ensure the base-emitter voltage (V_BE) is within the specified range to avoid forward biasing the base-emitter junction too heavily.
   • Use appropriate resistors to limit the base current (I_B) to prevent excessive collector current (I_C).

4. Operation:

   • Do not exceed the maximum ratings for collector-emitter voltage (V_CEO), collector-base voltage (V_CBO), and emitter-base voltage (V_EBO).
   • Keep the junction temperature (T_J) below the maximum rating to ensure reliable operation.

5. Storage:

   • Store the transistor in a dry, cool place away from direct sunlight and sources of heat.
   • Handle the transistor with care to avoid static discharge, which can damage the device.

6. Testing:

   • Use a multimeter to test the transistor for continuity and resistance between the leads.
   • Ensure the transistor is not damaged by checking the h_FE value within the specified range.

7. Circuit Design:

   • Refer to the datasheet for typical application circuits and design guidelines.
   • Consider using protective components such as diodes and capacitors to safeguard the transistor from transient voltages and currents.

(For reference only)