參數(shù)資料
型號: 2N6288AK
廠商: ON SEMICONDUCTOR
元件分類: 功率晶體管
英文描述: 7 A, 30 V, NPN, Si, POWER TRANSISTOR
封裝: TO-220AB, 3 PIN
文件頁數(shù): 13/60頁
文件大?。?/td> 371K
代理商: 2N6288AK
Surface Mount Package Information and Tape and Reel Specifications
4–4
Motorola Bipolar Power Transistor Device Data
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 remem-
bers these profiles from one operating session to the next.
Figure 5 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.
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
170
°C
140
°C
Figure 4. Typical Solder Heating Profile
DESIRED CURVE FOR HIGH
MASS ASSEMBLIES
相關(guān)PDF資料
PDF描述
2N6111DW 7 A, 30 V, PNP, Si, POWER TRANSISTOR
2N6292AN 7 A, 70 V, NPN, Si, POWER TRANSISTOR
2N6292AS 7 A, 70 V, NPN, Si, POWER TRANSISTOR
2N6288AS 7 A, 30 V, NPN, Si, POWER TRANSISTOR
2N6288 7 A, 30 V, NPN, Si, POWER TRANSISTOR, TO-220
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
2N6288G 功能描述:兩極晶體管 - BJT 7A 30V 40W NPN RoHS:否 制造商:STMicroelectronics 配置: 晶體管極性:PNP 集電極—基極電壓 VCBO: 集電極—發(fā)射極最大電壓 VCEO:- 40 V 發(fā)射極 - 基極電壓 VEBO:- 6 V 集電極—射極飽和電壓: 最大直流電集電極電流: 增益帶寬產(chǎn)品fT: 直流集電極/Base Gain hfe Min:100 A 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PowerFLAT 2 x 2
2N6289 制造商:NJSEMI 制造商全稱:New Jersey Semi-Conductor Products, Inc. 功能描述:MAXIMUM RATINGS, ABSOLUTE-MAXIMUM VALUOS
2N629 制造商:NJSEMI 制造商全稱:New Jersey Semi-Conductor Products, Inc. 功能描述:GE PNP POWER BJT
2N6290 功能描述:兩極晶體管 - BJT NPN Power SW RoHS:否 制造商:STMicroelectronics 配置: 晶體管極性:PNP 集電極—基極電壓 VCBO: 集電極—發(fā)射極最大電壓 VCEO:- 40 V 發(fā)射極 - 基極電壓 VEBO:- 6 V 集電極—射極飽和電壓: 最大直流電集電極電流: 增益帶寬產(chǎn)品fT: 直流集電極/Base Gain hfe Min:100 A 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:PowerFLAT 2 x 2
2N6290 制造商:SPC Multicomp 功能描述:TRANSISTOR NPN TO-220