Details

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BUY BF979S https://www.utsource.net/itm/p/12608538.html

Parameter	Symbol	Min	Typ	Max	Unit
Collector-Emitter Voltage	VCEO	-	30	-	V
Emitter-Collector Voltage	VECS	-	30	-	V
Base-Emitter Voltage	VBE	-1.5	-	-	V
Collector Current	IC	-	200	-	mA
Base Current	IB	-	20	-	mA
Power Dissipation	PTOT	-	625	-	mW
Storage Temperature Range	TSTG	-65	-	150	掳C
Operating Temperature Range	TA	-40	-	85	掳C
Transition Frequency	fT	-	150	-	MHz
DC Current Gain (hFE)	hFE	100	300	600	-

Instructions for Using BF979S:

1. Handling Precautions:

   • Handle the BF979S with care to avoid static damage.
   • Use proper ESD (Electrostatic Discharge) protection when handling the device.

2. Mounting:

   • Ensure that the device is mounted on a suitable PCB with appropriate thermal management.
   • Avoid excessive mechanical stress on the leads during soldering.

3. Soldering:

   • Use a temperature-controlled soldering iron.
   • Soldering temperature should not exceed 300掳C.
   • Soldering time should be kept to a minimum, typically less than 3 seconds per joint.

4. Biasing:

   • Ensure that the base current (I_B) is sufficient to keep the transistor in the desired operating region (saturation or active).
   • Use appropriate biasing circuits to maintain stable operation over temperature and supply voltage variations.

5. Heat Dissipation:

   • If high power dissipation is expected, use a heatsink or ensure adequate PCB copper area for heat spreading.
   • Monitor the junction temperature to ensure it does not exceed the maximum rated value.

6. Storage:

   • Store the BF979S in a dry, cool place.
   • Protect from moisture and extreme temperatures.

7. Testing:

   • Use a multimeter or a transistor tester to verify the functionality of the BF979S before installation.
   • Check for proper connections and continuity after soldering.

8. Applications:

   • The BF979S is suitable for high-frequency switching and amplification applications.
   • It can be used in RF circuits, audio amplifiers, and other analog and digital circuits requiring high-speed performance.

(For reference only)