PUML1 データシートの表示（PDF） - NXP Semiconductors.

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PUML1

50 V, 200 mA NPN general-purpose transistor/100 mA NPN resistor-equipped transistor

NXP Semiconductors. 

NXP Semiconductors

PUML1/DG

50 V, 200 mA NPN general-purpose transistor/100 mA NPN RET

6. Thermal characteristics

Table 6. Thermal characteristics

Symbol Parameter

Conditions

Per transistor

Rth(j-a)

thermal resistance from junction in free air

to ambient

Per device

Rth(j-a)

thermal resistance from junction in free air

to ambient

Min Typ Max Unit

[1] -

-

625 K/W

[1] -

-

417 K/W

[1] Device mounted on an FR4 PCB, single-sided copper, tin-plated and standard footprint.

103

Zth(j-a)

(K/W)

102

duty cycle =

1

0.75

0.5

0.33

0.2

0.1

0.05

0.02

10

0.01

0

006aab255

1

10−5

10−4

10−3

10−2

10−1

1

10

102

103

tp (s)

FR4 PCB, standard footprint

Fig 2. Per transistor: Transient thermal impedance from junction to ambient as a function of pulse duration

PUML1_DG_1

Product data sheet

Rev. 01 — 14 July 2008

© NXP B.V. 2008. All rights reserved.

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