- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄24766 > 935008910112 (NXP SEMICONDUCTORS) TELEPHONE MULTIFUNCTION CKT, PDSO16 PDF資料下載
參數(shù)資料
| 型號(hào)： | 935008910112 |
| 廠商： | NXP SEMICONDUCTORS |
| 元件分類： | 無繩電話/電話 |
| 英文描述： | TELEPHONE MULTIFUNCTION CKT, PDSO16 |
| 封裝： | 7.50 MM, PLASTIC, SOT-162-1, MS-013AA, SO-16 |
| 文件頁數(shù)： | 19/32頁 |
| 文件大?。?/td> | 253K |
| 代理商： | 935008910112 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁第17頁第18頁當(dāng)前第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁
1996 Nov 21
26
Philips Semiconductors
Product specication
DTMF/modem/musical-tone generators
PCD3311C; PCD3312C
14 SOLDERING
14.1
Introduction
There is no soldering method that is ideal for all IC
packages. Wave soldering is often preferred when
through-hole and surface mounted components are mixed
on one printed-circuit board. However, wave soldering is
not always suitable for surface mounted ICs, or for
printed-circuits with high population densities. In these
situations reflow soldering is often used.
This text gives a very brief insight to a complex technology.
A more in-depth account of soldering ICs can be found in
our
“IC Package Databook” (order code 9398 652 90011).
14.2
DIP
14.2.1
SOLDERING BY DIPPING OR BY WAVE
The maximum permissible temperature of the solder is
260
°C; solder at this temperature must not be in contact
with the joint for more than 5 seconds. The total contact
time of successive solder waves must not exceed
5 seconds.
The device may be mounted up to the seating plane, but
the temperature of the plastic body must not exceed the
specified maximum storage temperature (Tstg max). If the
printed-circuit board has been pre-heated, forced cooling
may be necessary immediately after soldering to keep the
temperature within the permissible limit.
14.2.2
REPAIRING SOLDERED JOINTS
Apply a low voltage soldering iron (less than 24 V) to the
lead(s) of the package, below the seating plane or not
more than 2 mm above it. If the temperature of the
soldering iron bit is less than 300
°C it may remain in
contact for up to 10 seconds. If the bit temperature is
between 300 and 400
°C, contact may be up to 5 seconds.
14.3
SO
14.3.1
REFLOW SOLDERING
Reflow soldering techniques are suitable for all SO
packages.
Reflow soldering requires solder paste (a suspension of
fine solder particles, flux and binding agent) to be applied
to the printed-circuit board by screen printing, stencilling or
pressure-syringe dispensing before package placement.
Several techniques exist for reflowing; for example,
thermal conduction by heated belt. Dwell times vary
between 50 and 300 seconds depending on heating
method. Typical reflow temperatures range from
215 to 250
°C.
Preheating is necessary to dry the paste and evaporate
the binding agent. Preheating duration: 45 minutes at
45
°C.
14.3.2
WAVE SOLDERING
Wave soldering techniques can be used for all SO
packages if the following conditions are observed:
A double-wave (a turbulent wave with high upward
pressure followed by a smooth laminar wave) soldering
technique should be used.
The longitudinal axis of the package footprint must be
parallel to the solder flow.
The package footprint must incorporate solder thieves at
the downstream end.
During placement and before soldering, the package must
be fixed with a droplet of adhesive. The adhesive can be
applied by screen printing, pin transfer or syringe
dispensing. The package can be soldered after the
adhesive is cured.
Maximum permissible solder temperature is 260
°C, and
maximum duration of package immersion in solder is
10 seconds, if cooled to less than 150
°C within
6 seconds. Typical dwell time is 4 seconds at 250
°C.
A mildly-activated flux will eliminate the need for removal
of corrosive residues in most applications.
14.3.3
REPAIRING SOLDERED JOINTS
Fix the component by first soldering two diagonally-
opposite end leads. Use only a low voltage soldering iron
(less than 24 V) applied to the flat part of the lead. Contact
time must be limited to 10 seconds at up to 300
°C. When
using a dedicated tool, all other leads can be soldered in
one operation within 2 to 5 seconds between
270 and 320
°C.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 935008910118 | TELEPHONE MULTIFUNCTION CKT, PDSO16 |
| 0637720000 | 250 A, MODULAR TERMINAL BLOCK, 1 DECK |
| 935009170112 | HCT SERIES, 8-BIT RIGHT SERIAL IN PARALLEL OUT SHIFT REGISTER, TRUE OUTPUT, PDIP16 |
| 935009180118 | HCT SERIES, 8-BIT RIGHT SERIAL IN PARALLEL OUT SHIFT REGISTER, TRUE OUTPUT, PDSO16 |
| 935190170118 | HCT SERIES, 8-BIT RIGHT SERIAL IN PARALLEL OUT SHIFT REGISTER, TRUE OUTPUT, PDSO16 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 9350-1R1 | 制造商:Johanson Manufacturing 功能描述:VARIABLE CAPACITOR |
| 9350216 | 功能描述:工業(yè)壓力 / 力傳感器 SST PRESS TRANSDUCER RoHS:否 制造商:Honeywell 工作壓力:0 bar to 25 bar 壓力類型:Sealed Gauge 準(zhǔn)確性:0.25 % 輸出類型: 安裝風(fēng)格:Screw 工作電源電壓:8 V to 30 V 輸出電壓:8 V to 30 V 封裝: |
| 9350219 | 制造商:Honeywell / Clarostat 功能描述:SST PRESSURE TRANSDUCERS 制造商:Honeywell Sensing and Control 功能描述:SST PRESSURE TRANSDUCERS 制造商:Honeywell Sensing and Control 功能描述:9350219 SST PRESSURE TRANSDUCERS |
| 9350220 | 功能描述:工業(yè)壓力 / 力傳感器 SST PRESS TRANSDUCER RoHS:否 制造商:Honeywell 工作壓力:0 bar to 25 bar 壓力類型:Sealed Gauge 準(zhǔn)確性:0.25 % 輸出類型: 安裝風(fēng)格:Screw 工作電源電壓:8 V to 30 V 輸出電壓:8 V to 30 V 封裝: |
| 9350221 | 功能描述:工業(yè)壓力 / 力傳感器 SST PRESS TRANSDUCER RoHS:否 制造商:Honeywell 工作壓力:0 bar to 25 bar 壓力類型:Sealed Gauge 準(zhǔn)確性:0.25 % 輸出類型: 安裝風(fēng)格:Screw 工作電源電壓:8 V to 30 V 輸出電壓:8 V to 30 V 封裝: |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。