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参数资料
| 型号： | ARF477FL |
| 厂商： | MICROSEMI POWER PRODUCTS GROUP |
| 元件分类： | 功率晶体管 |
| 英文描述： | 2 CHANNEL, VHF BAND, Si, N-CHANNEL, RF POWER, MOSFET |
| 封装： | ROHS COMPLIANT, CERAMIC PACKAGE-8 |
| 文件页数： | 4/4页 |
| 文件大小： | 145K |
| 代理商： | ARF477FL |
050-4952
B
3-2010
ARF477FL
1.500
.300
.200
.005 .040
ARF477FL
.175
.150
.100
.320
.320 +/- .010
.570
1.250
.320
.125dia
4 pls
.125R
4 pls
.080
1.000
HAZARDOUS MATERIAL WARNING
The white ceramic portion of the device between leads
and mounting surface is beryllium oxide, BeO. Beryllium
oxide dust is toxic when inhaled. Care must be taken dur-
ing handling and mounting to avoid damage to this area.
These devices must never be thrown away with general
industrial or domestic waste.
Thermal Considerations and Package Mounting:
The rated power dissipation is only available when the package
mounting surface is at 25°C and the junction temperature is 175°C.
The thermal resistance between junctions and case mounting sur-
face is 0.23 °C/W. When installed, an additional thermal impe-
dance of 0.07°C/W between the package base and the mounting
surface is typical. Insure that the mounting surface is smooth and
flat. Thermal joint compound must be used to reduce the effects of
small surface irregularities. Use the minimum amount necessary to
coat the surface. The heatsink should incorporate a copper heat
spreader to obtain best results.
The package design clamps the ceramic base to the heatsink. A
clamped joint maintains the required mounting pressure while al-
lowing for thermal expansion of both the base and the heat sink.
Four 4-40 (M3) screws provide the required mounting force. T = 6
in-lb (0.68 N-m).
Microsemi’s products are covered by one or more of U.S. patents 4,895,810 5,045,903 5,089,434 5,182,234 5,019,522 5,262,336 6,503,786 5,256,583
4,748,103 5,283,202 5,231,474 5,434,095 5,528,058 6,939,743, 7,352,045 5,283,201 5,801,417 5,648,283 7,196,634 6,664,594 7,157,886 6,939,743 7,342,262
and foreign patents. US and Foreign patents pending. All Rights Reserved.
65MHz Test Circuit
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