Electronic Components Datasheet Search
  English  ▼
ALLDATASHEET.COM

X  

DTC144EET1 Datasheet(PDF) 10 Page - ON Semiconductor

Part # DTC144EET1
Description  NPN SILICON BIAS RESISTOR TRANSISTORS
Download  12 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  ONSEMI [ON Semiconductor]
Direct Link  http://www.onsemi.com
Logo ONSEMI - ON Semiconductor

DTC144EET1 Datasheet(HTML) 10 Page - ON Semiconductor

Back Button DTC144EET1 Datasheet HTML 4Page - ON Semiconductor DTC144EET1 Datasheet HTML 5Page - ON Semiconductor DTC144EET1 Datasheet HTML 6Page - ON Semiconductor DTC144EET1 Datasheet HTML 7Page - ON Semiconductor DTC144EET1 Datasheet HTML 8Page - ON Semiconductor DTC144EET1 Datasheet HTML 9Page - ON Semiconductor DTC144EET1 Datasheet HTML 10Page - ON Semiconductor DTC144EET1 Datasheet HTML 11Page - ON Semiconductor DTC144EET1 Datasheet HTML 12Page - ON Semiconductor  
Zoom Inzoom in Zoom Outzoom out
 10 / 12 page
background image
DTC114EET1 SERIES
http://onsemi.com
10
SOLDER STENCIL GUIDELINES
Prior to placing surface mount components onto a printed
circuit board, solder paste must be applied to the pads. A
solder stencil is required to screen the optimum amount of
solder paste onto the footprint. The stencil is made of brass
or stainless steel with a typical thickness of 0.008 inches.
The stencil opening size for the surface mounted package
should be the same as the pad size on the printed circuit
board, i.e., a 1:1 registration.
TYPICAL SOLDER HEATING PROFILE
For any given circuit board, there will be a group of
control settings that will give the desired heat pattern. The
operator must set temperatures for several heating zones,
and a figure for belt speed. Taken together, these control
settings make up a heating “profile” for that particular
circuit board. On machines controlled by a computer, the
computer remembers these profiles from one operating
session to the next. Figure 26 shows a typical heating
profile for use when soldering a surface mount device to a
printed circuit board. This profile will vary among
soldering systems but it is a good starting point. Factors that
can affect the profile include the type of soldering system in
use, density and types of components on the board, type of
solder used, and the type of board or substrate material
being used. This profile shows temperature versus time.
The line on the graph shows the actual temperature that
might be experienced on the surface of a test board at or
near a central solder joint. The two profiles are based on a
high density and a low density board. The Vitronics
SMD310 convection/infrared reflow soldering system was
used to generate this profile. The type of solder used was
62/36/2 Tin Lead Silver with a melting point between
177 –189
°C. When this type of furnace is used for solder
reflow work, the circuit boards and solder joints tend to
heat first. The components on the board are then heated by
conduction. The circuit board, because it has a large surface
area, absorbs the thermal energy more efficiently, then
distributes this energy to the components. Because of this
effect, the main body of a component may be up to 30
degrees cooler than the adjacent solder joints.
Figure 26. Typical Solder Heating Profile
STEP 1
PREHEAT
ZONE 1
“RAMP”
STEP 2
VENT
“SOAK”
STEP 3
HEATING
ZONES 2 & 5
“RAMP”
STEP 4
HEATING
ZONES 3 & 6
“SOAK”
STEP 5
HEATING
ZONES 4 & 7
“SPIKE”
STEP 6
VENT
STEP 7
COOLING
200
°C
150
°C
100
°C
50
°C
TIME (3 TO 7 MINUTES TOTAL)
TMAX
SOLDER IS LIQUID FOR
40 TO 80 SECONDS
(DEPENDING ON
MASS OF ASSEMBLY)
205
° TO 219°C
PEAK AT
SOLDER JOINT
DESIRED CURVE FOR LOW
MASS ASSEMBLIES
100
°C
150
°C
160
°C
140
°C
DESIRED CURVE FOR HIGH
MASS ASSEMBLIES
170
°C


Similar Part No. - DTC144EET1

ManufacturerPart #DatasheetDescription
logo
ON Semiconductor
DTC144EET1 ONSEMI-DTC144EET1 Datasheet
102Kb / 10P
   Bias Resistor Transistor
January, 2005 ??Rev. 6
DTC144EET1 ONSEMI-DTC144EET1 Datasheet
92Kb / 11P
   Bias Resistor Transistor NPN Silicon Surface Mount Transistor with Monolithic Bias Resistor Network
March, 2006 ??Rev. 8
DTC144EET1 ONSEMI-DTC144EET1 Datasheet
145Kb / 13P
   Bias Resistor Transistor NPN Silicon Surface Mount Transistor with Monolithic Bias Resistor Network
May, 2012 ??Rev. 12
DTC144EET1G ONSEMI-DTC144EET1G Datasheet
102Kb / 10P
   Bias Resistor Transistor
January, 2005 ??Rev. 6
DTC144EET1G ONSEMI-DTC144EET1G Datasheet
92Kb / 11P
   Bias Resistor Transistor NPN Silicon Surface Mount Transistor with Monolithic Bias Resistor Network
March, 2006 ??Rev. 8
More results

Similar Description - DTC144EET1

ManufacturerPart #DatasheetDescription
logo
Motorola, Inc
MUN5211T1 MOTOROLA-MUN5211T1 Datasheet
230Kb / 12P
   NPN SILICON BIAS RESISTOR TRANSISTORS
logo
ON Semiconductor
MUN5211T1 ONSEMI-MUN5211T1 Datasheet
230Kb / 10P
   NPN SILICON BIAS RESISTOR TRANSISTORS
November, 2004 ??Rev. 6
logo
AiT Semiconductor Inc.
DTA143X AITSEMI-DTA143X Datasheet
497Kb / 5P
   BIAS RESISTOR TRANSISTORS NPN SILICON W/MONOLITHIC BIAS RESISTOR NETWORK
REV1.0
logo
Leshan Radio Company
LMUN2237LT1 LRC-LMUN2237LT1 Datasheet
100Kb / 4P
   Bias Resistor Transistors NPN Silicon Surface Mount Transistors with Monolithic Bias Resistor Network
logo
AiT Semiconductor Inc.
DTA114EM AITSEMI-DTA114EM Datasheet
1Mb / 14P
   BIAS RESISTOR TRANSISTORS NPN SILICON SURFACE MOUNT TRANSISTORS WITH MONOLITHIC BIAS RESISTOR NETWORK
REV1.0
logo
Shanghai Leiditech Elec...
LDTC114EET1G LEIDITECH-LDTC114EET1G Datasheet
1Mb / 9P
   Bias Resistor Transistors NPN Silicon Surface Mount Transistors with Monolithic Bias Resistor Network
logo
ON Semiconductor
EMG2DXV5T1 ONSEMI-EMG2DXV5T1 Datasheet
69Kb / 7P
   Dual Bias Resistor Transistors NPN Silicon Surface Mount Transistors with Monolithic Bias Resistor Network
October, 2005 ??Rev. 0
MUN5211DW1 ONSEMI-MUN5211DW1 Datasheet
159Kb / 8P
   Dual NPN Bias Resistor Transistors
June, 2016 ??Rev. 4
MUN5215DW1 ONSEMI-MUN5215DW1 Datasheet
86Kb / 8P
   Dual NPN Bias Resistor Transistors
July, 2014 ??Rev. 1
MUN5230DW1 ONSEMI-MUN5230DW1 Datasheet
145Kb / 6P
   Dual NPN Bias Resistor Transistors
September, 2012 ??Rev. 0
More results


Html Pages

1 2 3 4 5 6 7 8 9 10 11 12


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ] 

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Link Exchange   |   Manufacturer List
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn
Indian : Alldatasheet.in  |   Mexican : Alldatasheet.com.mx  |   British : Alldatasheet.co.uk  |   New Zealand : Alldatasheet.co.nz
Family Site : ic2ic.com  |   icmetro.com