MJE700,T MJE702 MJE703 MJE800,T MJE802 MJE803

3

Motorola Bipolar Power Transistor Device Data

t, TIME (ms)

1.0

0.01

0.01

0.5

0.2

0.1

0.05

0.02

0.05

1.0

2.0

5.0

10

20

50

100

200

1000

500

θJC(t) = r(t) θJC

θJC = 3.12°C/W MAX

D CURVES APPLY FOR POWER

PULSE TRAIN SHOWN

READ TIME AT t1

TJ(pk) – TC = P(pk) θJC(t)

P(pk)

t1

t2

DUTY CYCLE, D = t1/t2

D = 0.5

0.2

0.05

0.01

SINGLE PULSE

0.1

0.7

0.3

0.07

0.03

0.02

0.1

0.5

0.2

Figure 5. Thermal Response (MJE700, 800 Series)

0.03

3.0

30

300

0.3

10

VCE, COLLECTOR–EMITTER VOLTAGE (VOLTS)

0.1

100

2.0

5.0

0.5

Figure 6. MJE700 Series

MJE702, 703

MJE700

dc

1.0

3.0

1.0 ms

70

50

30

20

10

7.0

5.0

100

µs

TJ = 150°C

VCE, COLLECTOR–EMITTER VOLTAGE (VOLTS)

0.1

Figure 7. MJE800 Series

100

70

50

30

20

10

7.0

5.0

0.2

0.7

0.3

7.0

10

2.0

5.0

0.5

1.0

3.0

0.2

0.7

0.3

7.0

5.0 ms

BONDING WIRE LIMITED

THERMALLY LIMITED

@ TC = 25°C (SINGLE PULSE)

SECOND BREAKDOWN LIMITED

100

µs

1.0 ms

5.0 ms

dc

TJ = 150°C

BONDING WIRE LIMITED

THERMALLY LIMITED

@ TC = 25°C (SINGLE PULSE)

SECOND BREAKDOWN LIMITED

MJE802, 803

MJE800

ACTIVE–REGION SAFE–OPERATING AREA

There are two limitations on the power handling ability of a

transistor: average junction temperature and second break-

down. 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 dissipa-

tion than the curves indicate.

The data of Figures 6 and 7 are based on TJ(pk) = 150_C;

TC is variable depending on conditions. Second breakdown

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

< 150

_C. TJ(pk) may be calculated from the data in Figure 4

or 5. At high case temperatures, thermal limitations will re-

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

limitations imposed by second breakdown.

10

VCE, COLLECTOR–EMITTER VOLTAGE (VOLTS)

0.1

1.0

5.0

0.2

Figure 8. MJE700T

0.5

2.0

5.0

VCE, COLLECTOR–EMITTER VOLTAGE (VOLTS)

0.1

Figure 9. MJE800T

100

70

50

30

20

10

7.0

5.0

100

70

50

30

20

10

7.0

10

1.0

5.0

0.2

0.5

2.0

100

µs

1.0 ms

5.0 ms

dc

TJ = 150°C

BONDING WIRE LIMITED

THERMALLY LIMITED

@ TC = 25°C (SINGLE PULSE)

SECOND BREAKDOWN LIMITED

100

µs

1.0 ms

5.0 ms

dc

TJ = 150°C

BONDING WIRE LIMITED

THERMALLY LIMITED

@ TC = 25°C (SINGLE PULSE)

SECOND BREAKDOWN LIMITED