A200 查看數據表（PDF） - Intel

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A200

PENTIUM® PROCESSOR

Intel 

E

PENTIUM® PROCESSOR 75/90/100/120/133/150/166/200

• The thermocouple should be attached at a 90-

degree angle as shown in Figure 15.

• The hole size should be smaller than 0.150" in

diameter.

5.1.1. THERMAL EQUATIONS AND DATA

For the Pentium processor 75/90/100/120/133/

150/166/200, an ambient temperature, TA (air

temperature around the processor), is not specified

directly. The only restriction is that TC is met. To

calculate TA values, the following equations may be

used:

TA = TC - (P * θCA)

where:

θCA = θJA - θJC

TA and TC =

θCA =

θJA =

θJC =

P=

ambient and case temperature.

(ºC)

case-to-ambient

resistance. (ºC/Watt)

thermal

junction-to-ambient

resistance. (ºC/Watt)

thermal

junction-to-case

resistance. (ºC/Watt)

thermal

maximum power consumption

(Watt)

Tables 23-26 list the θCA values for the Pentium

processor 75/90/100/120/133/150/166/200 with

passive heat sinks. Figures 16-17 show Tables 23-

24 in graphic format.

199713

Figure 15. Technique for Measuring TC*

*Though the figure shows the package with a heat spreader, the same technique applies to measuring TC of the package

without a heat spreader.

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