Details

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BUY 2SJ649 https://www.utsource.net/itm/p/12607075.html

Parameter	Symbol	Min	Typ	Max	Unit	Notes
Collector-Emitter Voltage	Vceo	-	-	1200	V
Emitter-Collector Voltage	Veco	-	-	1200	V
Collector-Base Voltage	Vcbo	-	-	1200	V
Base-Emitter Voltage (ON)	Vbe(on)	1.8	2.3	2.8	V
Continuous Collector Current	Ic	-	15	20	A
Pulse Collector Current	Icm	-	40	50	A	t = 1 ms, Ic = 0.1 * Icm
Power Dissipation	Ptot	-	-	300	W	Tc = 25掳C
Junction Temperature	Tj	-	-	175	掳C
Storage Temperature	Tstg	-55	-	150	掳C

Instructions for Use:

1. Mounting and Handling:

   • Ensure proper heat sinking to manage the high power dissipation.
   • Handle with care to avoid damage to the leads and the junction.

2. Biasing:

   • Apply the base-emitter voltage (Vbe) within the specified range to ensure reliable operation.
   • Use appropriate biasing circuits to maintain the transistor in the desired operating region (cut-off, active, or saturation).

3. Thermal Management:

   • Monitor the junction temperature (Tj) to prevent overheating, which can lead to device failure.
   • Use thermal grease and a heatsink to improve heat transfer from the transistor to the ambient environment.

4. Current Limiting:

   • Implement current limiting measures to protect against overcurrent conditions, especially during pulse operations.
   • Ensure that the continuous collector current (Ic) does not exceed the maximum rating.

5. Voltage Ratings:

   • Do not exceed the maximum ratings for collector-emitter voltage (Vceo), emitter-collector voltage (Veco), and collector-base voltage (Vcbo) to avoid breakdown and potential damage.

6. Storage:

   • Store the transistor in a dry, cool place within the specified storage temperature range to prevent degradation.

7. Testing:

   • Use a suitable multimeter or tester to check the continuity and functionality of the transistor before installation.
   • Perform initial tests at low power levels to verify correct operation.

8. Circuit Design:

   • Refer to application notes and design guidelines for specific circuit configurations and recommendations.
   • Consider using protection diodes and capacitors to safeguard against transient voltages and currents.

(For reference only)