參數(shù)資料
型號(hào): SME5410MCZ-270
元件分類: 微控制器/微處理器
英文描述: 64-BIT, 270 MHz, RISC PROCESSOR, XMA
封裝: 130 X 100 MM, 45 MM HEIGHT MODULE
文件頁(yè)數(shù): 16/30頁(yè)
文件大?。?/td> 183K
代理商: SME5410MCZ-270
23
270 MHz CPU, 256 Kbyte E-cache, UPA, 66 MHz PCI
UltraSPARC-IIi CPU Module
SME5410MCZ-270
July 1998
Sun Microsystems, Inc
“Heatsink-to-Air Thermal Resistance” species the thermal resistance of the heatsink as a function of airow
velocity. Notice that the airow direction also affects the performance of the heatsink.
Thermal Air ow
Air Flow Topside
150 LFM @ 30
°C up to 2,000 feet, altitude, maximum
300 LFM @ 40
°C up to 10,000 feet, altitude, maximum
Air Flow Bottom-side
100 LFM @ 30
°C up to 2,000 feet, altitude, maximum
150 LFM @ 40
°C up to 10,000 feet, altitude, maximum
Heatsink-to-Air Thermal Resistance
Air Velocity
(ft./min) [1]
1. Channeled through the heat sinks
150
200
300
400
500
650
800
1000
θ
SA (°C/W)
[2]
2. Airow direction parallel to the shorter axis of the pin-n heat sink (1.9"L x 3.6"W x 1.1"H)
1.21
1.05
0.91
0.84
0.78
0.72
0.67
0.64
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