- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄374440 > MIL-STD-1275B (SENSITRON SEMICONDUCTOR) DC Solid State Power Controller Module PDF資料下載
參數(shù)資料
| 型號： | MIL-STD-1275B |
| 廠商： | SENSITRON SEMICONDUCTOR |
| 英文描述： | DC Solid State Power Controller Module |
| 中文描述： | 直流固態(tài)功率控制器模塊 |
| 文件頁數(shù)： | 8/11頁 |
| 文件大小： | 511K |
| 代理商： | MIL-STD-1275B |
SENSITRON
SEMICONDUCTOR
TECHNICAL DATA
DATASHEET 4310, Rev B
Wire Size
MIL-W-5088L has a chart the shows wire size as a function of wire temperature and current. This chart is for a
single copper wire in free air. For an ambient temperature of 70
o
C, the chart allows an 18-gauge wire to handle
25 Amps continuously at a wire temperature of 200
o
C – a wire temperature rise of 130
o
C. For a wire
temperature limited to 150
o
C, the chart requires a 16-gauge wire and for a wire temperature of 105
o
C, the chart
requires a 14-gauge wire.
Amendment 1 of MIL-W-5088L has a table for copper wire in a bundle, group or harness with conditions on the
number of wires, percent of total harness capacity, etc. This table shows that a 12 gauge wire is necessary for
200
o
C operation, 10 gauge for 150
o
C and 8 gauge for 105
o
C.
MIL-W-5088L has various figures showing derating for harnesses as a function of the number of current carrying
conductors and for altitude. MIL-W-5088L only specifies wire for DC or RMS AC conditions, not for transient or
overload conditions.
For transient or overload conditions, the transient or overload happens so quickly that heat is not transferred
from the wire to the surroundings. The heat caused by the I
R heating of the wire causes the temperature to
rise at a linear rate controlled by the heat capacity of the wire. The equation for this linear rise in temperature,
with respect to time, can be solved as: I
2
t = constant. Every wire has an I
2
t rating that’s dependent on the
temperature rise allowed and the diameter of the wire. If the I
2
t rating of the SSPC or circuit breaker is less than
the I
2
t rating of the wire, then the SSPC or circuit breaker can protect the wire. The maximum I
2
t rating for the
SPD25D28 is 7.45 Amp
-Seconds. Every wire size in the paragraphs above has an I
t rating that exceeds the
SPD25D28 I
t rating for the temperature rises stated. Therefore, to select a wire size, it’s simply a matter of
determining the maximum temperature rise of the application and deciding whether or not the wire will be in a
bundle and use the information above.
Application Connections
The SPDXXD28 Series may be configured as a high-side or low-side switch and may be used in positive or
negative supply applications. Figure 5 shows the connections as a high-side switch with a positive power
supply.
221 West Industry Court Deer Park, NY 11729-4681 Phone (631) 586 7600 Fax (631) 242 9798
World Wide Web - http://www.sensitron.com
E-Mail Address - sales@sensitron.com
SPDXXD28 SERIES
Figure 5 – High-Side Switch, Positive Supply
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MIL-STD-217F | DC Solid State Power Controller Module |
| MIL-STD-704F | DC Solid State Power Controller Module |
| MINI-MELF | Case No. MINI-MELF Device |
| MINI-SMA | Case No. MINI-SMA Device |
| MIW4021 | 5-6W, Ultra-Wide Input Range DIP, Single & Dual Output DC/DC Converters |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MIL-STD-1285 | 制造商:ITT 制造商全稱:ITT Industries 功能描述:CONNECTORS, ELECTRIC, RECTANGULAR, NONENVIRONMENTAL, MINIATURE, POLARIZED SHELL, RACK AND PANEL, GENERAL SPECIFCATION FOR |
| MIL-STD-1310 | 制造商: 功能描述: 制造商:undefined 功能描述: |
| MIL-STD-1553 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Remote Terminal |
| MIL-STD-1553B | 制造商:AEROFLEX 制造商全稱:AEROFLEX 功能描述:Universal MacAir/1553 Dumb RTU Hybrid PRELIMINARY DATA SHEET |
| MIL-STD-2003 | 制造商:LITEON 制造商全稱:Lite-On Technology Corporation 功能描述:Meet ROHS, Green Product Extra thin 0.30H mm Chip LED Extra bright A1InGaP Chip LED |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。