BC817-25QA データシートの表示（PDF） - NXP Semiconductors.

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BC817-25QA

45 V, 500 mA NPN general-purpose transistors

NXP Semiconductors. 

Nexperia

BC817-25QA; BC817-40QA

45 V, 500 mA NPN general-purpose transistors



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(1) FR4 PCB, 4-layer copper, 1 cm2

(2) FR4 PCB, single-sided copper, 1 cm2

(3) FR4 PCB, 4-layer copper, standard footprint

(4) FR4 PCB, single-sided copper, standard footprint

Fig 2. Power derating curves





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6. Thermal characteristics

Table 7.

Symbol

Rth(j-a)

Thermal characteristics

Parameter

thermal resistance from

junction to ambient

Conditions

in free air

Min Typ Max Unit

[1] -

-

417 K/W

[2] -

-

250 K/W

[3] -

-

223 K/W

[4] -

-

139 K/W

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

[2] Device mounted on an FR4 PCB, 4-layer copper, tin-plated and standard footprint.

[3] Device mounted on an FR4 PCB, single-sided copper, tin-plated mounting pad for collector 1 cm2.

[4] Device mounted on an FR4 PCB, 4-layer copper, tin-plated mounting pad for collector 1 cm2.

BC817-25QA_40QA

Product data sheet

All information provided in this document is subject to legal disclaimers.

Rev. 1 — 3 September 2013

© Nexperia B.V. 2017. All rights reserved

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