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參數(shù)資料
| 型號： | TFS249A |
| 廠商： | VECTRON INTERNATIONAL |
| 元件分類： | 聲表面波濾波器 |
| 英文描述： | 1 FUNCTIONS, 249.6 MHz, SAW FILTER |
| 文件頁數(shù)： | 4/5頁 |
| 文件大小： | 41K |
| 代理商： | TFS249A |
Tfs249A.doc
version 2.0
08.06.2001
VI TELEFILTER
Filter Specification
TFS 249A
4/5
VI TELEFILTER
Vectron International, Inc.
Potsdamer Strae 18
267 Lowell Road
D 14 513 TELTOW / Germany
Hudson, NH 03051 / USA
Tel: (+49) 3328 4784-52 / Fax: (+49) 3328 4784-30
Tel: (603) 598-0070 Fax: (603) 598-0075
E-Mail:
tft@telefilter.com
E-Mail:
vti@vtinh.com
VI TELEFILTER reserves the right to make changes to the product(s) and/or information contained herein without notice. No liability is
assumed as a result of their use or application. No rights under any patent accompany the sale of any such product(s) or information
Air reflow temperature conditions
1st and 2nd air reflow profile
Name:
pre-heating periods
main-heating periods
peak temperature
Temperature:
150 °C - 170 °C
over 200 °C
255 °C ± 5 °C
Time:
60 sec. - 90 sec.
20 sec. - 25 sec.
Chip-mount air reflow profile
time / sec.
temperature
/
°C
0
20
40
60
80
100
120
140
160
180
200
220
240
260
0
20
40
60
80
100
120
140
160
180
200
220
240
Table for temperature vs. time during the air reflow process
Tolerance of temperatures: ± 5 °C
time / sec.
temperature / °C
time / sec.
temperature / °C
0
23
140
160
10
34
150
161
20
46
160
164
30
60
170
40
80
180
50
103
190
205
60
121
195
230
70
134
200
255
80
143
205
230
90
150
210
205
100
154
215
180
110
156
220
165
120
158
230
140
130
159
240
120
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