BUH51 查看數據表（PDF） - ON Semiconductor

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BUH51

SWITCHMODE™ NPN Silicon Planar Power Transistor

ON Semiconductor 

1

0.5

0.2

0.1

0.1 0.05

0.02

SINGLE PULSE

0.01

0.01

BUH51

TYPICAL THERMAL RESPONSE

P(pk)

t1

t2

DUTY CYCLE, D = t1/t2

RθJC(t) = r(t) RθJC

RθJC = 2.5°C/W MAX

D CURVES APPLY FOR POWER

PULSE TRAIN SHOWN

READ TIME AT t1

TJ(pk) − TC = P(pk) RθJC(t)

0.1

1

10

100

1000

t, TIME (ms)

Figure 24. Typical Thermal Response (ZθJC(t)) for BUH51

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