- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄299186 > HSMS-280E-BLKG (AGILENT TECHNOLOGIES INC) SILICON, MIXER DIODE PDF資料下載
參數(shù)資料
| 型號(hào)： | HSMS-280E-BLKG |
| 廠商： | AGILENT TECHNOLOGIES INC |
| 元件分類： | 參考電壓二極管 |
| 英文描述： | SILICON, MIXER DIODE |
| 封裝： | LEAD FREE, SC-70, 3 PIN |
| 文件頁數(shù)： | 7/10頁 |
| 文件大小： | 138K |
| 代理商： | HSMS-280E-BLKG |
6
TIME (seconds)
T
MAX
TEMPERATURE
(
°C)
0
50
100
150
200
250
60
Preheat
Zone
Cool Down
Zone
Reflow
Zone
120
180
240
300
Figure 8. Surface Mount Assembly Profile.
SMT Assembly
Reliable assembly of surface
mount components is a complex
process that involves many
material, process, and equipment
factors, including: method of
heating (e.g., IR or vapor phase
reflow, wave soldering, etc.)
circuit board material, conductor
thickness and pattern, type of
solder alloy, and the thermal
conductivity and thermal mass of
components. Components with a
low mass, such as the SOT
package, will reach solder reflow
temperatures faster than those
with a greater mass.
The rates of change of tempera-
ture for the ramp-up and cool-
down zones are chosen to be low
enough to not cause deformation
of the board or damage to compo-
nents due to thermal shock. The
maximum temperature in the
reflow zone (TMAX) should not
exceed 235
°C.
These parameters are typical for a
surface mount assembly process
for Agilent diodes. As a general
guideline, the circuit board and
components should be exposed
only to the minimum tempera-
tures and times necessary to
achieve a uniform reflow of
solder.
Agilent’s SOT diodes have been
qualified to the time-temperature
profile shown in Figure 8. This
profile is representative of an IR
reflow type of surface mount
assembly process.
After ramping up from room
temperature, the circuit board
with components attached to it
(held in place with solder paste)
passes through one or more
preheat zones. The preheat zones
increase the temperature of the
board and components to prevent
thermal shock and begin evaporat-
ing solvents from the solder paste.
The reflow zone briefly elevates
the temperature sufficiently to
produce a reflow of the solder.
Part Number Ordering Information
No. of
Part Number
Devices
Container
HSMS-280x-TR2 *
10000
13" Reel
HSMS-280x-TR1 *
3000
7" Reel
HSMS-280x-BLK *
100
antistatic bag
x = 0, 2, 3, 4, 5, 7, 8, B, C, E, F, K, L, M, N, P, R
For lead-free option, the part number will have the
character "G" at the end, eg. HSMS-280x-TR2G for a
10,000 lead-free reel.
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。