2N5686 datasheet(3/5 Pages) ONSEMI

3 / 5 page

2N5684 (PNP), 2N5686 (NPN)

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Figure 4. Thermal Response

t, TIME (ms)

1.0

0.01

0.02

0.7

0.5

0.3

0.2

0.1

0.07

0.05

0.03

0.02

0.05

0.1

0.2

0.5

1.0

2.0

5.0

100

200

2000

500

θJC(t) = r(t) θJC

θJC = 0.584°C/W MAX

D CURVES APPLY FOR POWER

PULSE TRAIN SHOWN

READ TIME AT t1

TJ(pk) - TC = P(pk) θJC(t)

P(pk)

DUTY CYCLE, D = t1/t2

D = 0.5

0.05

0.02

0.01

SINGLE PULSE

0.1

1000

0.2

100

1.0

Figure 5. Active-Region Safe Operating Area

VCE, COLLECTOR-EMITTER VOLTAGE (VOLTS)

5.0

0.1

2.0

3.0

7.0

100

SECOND BREAKDOWN LIMITED

BONDING WIRE LIMITED

THERMALLY LIMITED @ TC = 25°C

(SINGLE PULSE)

2.0

TJ = 200°C

CURVES APPLY BELOW

RATED VCEO

1.0 ms

500

μs

1.0

0.5

0.2

5.0

100

μs

5.0 ms

2N5684, 2N5686

There are two limitations on the power handling ability of

a transistor: average junction temperature and second

breakdown. Safe operating area curves indicate IC - VCE

limits of the transistor that must be observed for reliable

operation; i.e., the transistor must not be subjected to greater

dissipation than the curves indicate.

The data of Figure 5 is based on TJ(pk) = 200_C; TC is

variable depending on conditions. Second breakdown pulse

limits are valid for duty cycles to 10% provided TJ(pk)

v 200_C. TJ(pk) may be calculated from the data in

Figure 4. At high case temperatures, thermal limitations will

reduce the power that can be handled to values less than the

limitations imposed by second breakdown.

4.0

0.5

Figure 6. Turn-Off Time

IC, COLLECTOR CURRENT (AMP)

2.0

1.0

0.6

0.4

0.2

0.7 1.0

2.0

3.0

7.0

TJ = 25°C

IB1 = IB2

IC/IB = 10

VCE = 30 V

0.3

5.0

5000

0.1

Figure 7. Capacitance

VR, REVERSE VOLTAGE (VOLTS)

500

2.0

5.0

100

0.2

0.5

1.0

3000

1000

700

TJ = 25°C

0.8

3.0

2000

2N5684 (PNP)

2N5686 (NPN)

Cib

2N5684 (PNP)

2N5686 (NPN)

Cob

Cib

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