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绝缘耐压如何选型?
PCB 一般材料供应商的参数: FR4使用的环氧树脂击穿电压在30KV/MM, 由于芯板的树脂中有无机填充物和玻璃布可达最低40KV/MM
12V的系统要打绝缘耐压吗?
对于12V系统耐压测试也是需要的,一般是需要测试到500V。在耐压测试前需要进行绝缘测试
打绝缘耐压有什么讲究和要注意的地方吗?
打绝缘耐压时,尽量使用爬坡法,缓慢增加电压直到逼近目标耐压,需要注意的时,检查绝缘纸有无被毛刺戳破,一次侧对二次侧隔离处理是否满足设计要求,同时注意安全。
打绝缘耐压要注意什么?
在耐压试验前后都要测试设备绝缘,绝缘未达标,不允许进行耐压试验。
爬电距离与电气距离,作用分别是什么。打绝缘耐压,哪个是直接因素。距离不够时,有开槽处理的,这是为了增大绝缘耐压吗。
电气间隙:在两个导电零部件之间或导电零部件与设备防护界面之间测得的最短空间距离。即在保证电气性能稳定和安全的情况下,通过空气能实现绝缘的最短距离。-直接直线最短距离 爬电距离:在两个导电部分之间沿绝缘材料表面的最短距离。-沿绝缘材料表面最短距离
爱浦电子模块电源选型表
提供爱浦电子:AC/DC模块电源:中小功率(2-30W)高性能标准电压(5V、12V)的模块;DC/DC模块电源:小功率(3-20W)、中大功率 (30-700W)、微功率(1-2W)模块,提供9-36Vdc、1872Vdc的超宽电压输入;光伏模块电源:BK系列是200-1500VDC超高电压输入高效率高可靠性高隔离电压的 DC-DC 开关稳压模块电源;隔离收发模块。
产品型号
|
品类
|
输出功率(W)
|
输入电压范围(V)
|
输出电压(V)
|
输出电流
|
包装形式(Package)
|
应用等级
|
等级认证标准
|
FD6-18S05A3
|
模块电源
|
6W
|
9V~36V
|
5V
|
1.2A
|
管
|
工业级
|
CE/RoHS
|
TE connectivity PCB Headers & Receptacles选型表
泰科PCB连接器选型表,0.4mm-9.14mm间距 UL/VDE认证。PCB Mount Header,PCB Mount Receptacle,PCB Mount Compression Connector,PCB Mount Hermaphroditic Connector,PCB连接线端子,线对线连接器,板对板连接器,线对板连接器
产品型号
|
品类
|
Connector System
|
Header Type
|
Number of Positions
|
Number of Rows
|
PCB Mount Orientation
|
Operating Voltage(VAC、VDC)
|
Primary Product Color
|
PCB Contact Termination Area Plating Material
|
PCB Contact Termination Area Plating Material Finish
|
Contact Mating Area Plating Material Thickness(µm、µin)
|
Contact Mating Area Plating Material
|
Contact Current Rating (Max)(A)
|
Termination Method to Printed Circuit Board
|
Mating Retention
|
Centerline (Pitch)(mm、in)
|
Connector Width(mm、in)
|
Connector Height(mm、in)
|
Operating Temperature Range(℃、°F)
|
Agency/Standard
|
Glow Wire Rating
|
UL Flammability Rating
|
Packaging Quantity
|
Packaging Type
|
Number of Signal Positions
|
Data Rate(Gb/s)
|
1-1565036-5
|
PCB Mount Header
|
Wire-to-Board
|
Partially Shrouded
|
8
|
1
|
Vertical
|
250 VAC
|
Natural
|
Tin
|
Matte
|
1 µm[39.37 µin]
|
Tin
|
8 A
|
Through Hole - Solder
|
With
|
3.96 mm[0.156 in]
|
8.5 mm[0.33 in]
|
10.7 mm[0.421 in]
|
-25 – 105 °C[-13 – 221 °F]
|
UL
|
Standard Part - Not Glow Wire
|
UL 94V-0
|
1000
|
Bag
|
-
|
-
|
sinhoo螺母选型表
Sinhoo提供多种螺母选型,涵盖铜、铁材质,尺寸范围广泛。大外径直径4.0-8.74mm,板上高度0.3-20mm,开孔直径2.0-6.22mm,沉板厚度0.48-1.53mm。封装多样,如4mm0.3mm2.5mm1.5mm至8.74mm20mm6.22mm1.53mm等。适用于电子、机械等多领域,满足不同安装空间与性能需求。
产品型号
|
品类
|
封装/外壳/尺寸
|
大外径直径(MM)
|
板上高度(MM)
|
开孔直径(MM)
|
沉板厚度(MM)
|
材质
|
TH162003CTS
|
螺母
|
4mm*0.3mm*2.5mm*1.5mm
|
4
|
0.3
|
2.5
|
1.5
|
铜
|
TE connectivity Rectangular Power Connectors选型表
TE(泰科)Rectangular Power Connectors选型表,提供位数1~248,中心线(间距)0.16mm~600mm的矩形连接器,护套,公端,连接器组件。
产品型号
|
品类
|
Connector System
|
Number of Positions
|
Number of Rows
|
Operating Voltage(V)
|
Contact Current Rating (Max)(A)
|
Centerline (Pitch)(mm、in)
|
Housing Color
|
Housing Material
|
Accepts Insulation Diameter Range(mm、in)
|
Operating Temperature Range(℃、℉)
|
UL Flammability Rating
|
Glow Wire Rating
|
Packaging Method
|
PCB Mount Orientation
|
Number of Power Positions
|
Contact Mating Area Plating Material
|
Termination Method to Printed Circuit Board
|
PCB Thickness (Recommended)(mm、in)
|
Approved Standards
|
Agency/Standard
|
CSA Rating
|
Row-to-Row Spacing(mm、in)
|
Connector & Keying Code
|
Panel Thickness (Recommended)(mm、in)
|
Wire Contact Termination Area Plating Material
|
1-1123722-0
|
Housing
|
Wire-to-Board
|
10
|
1
|
250 V
|
8 A
|
3.96 mm[0.156 in]
|
Natural
|
Nylon 66
|
1.7 – 3 mm[0.067 – 0.118 in]
|
-25 – 105 °C[-13 – 221 °F]
|
UL 94V-0
|
Standard Part - Not Glow Wire
|
Bag
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
TE connectivity PCB Headers & Receptacles选型表(续三)
泰科PCB连接器选型表, 1-7行,1-384列数。 提供PCB连接线端子,线对线连接器,板对板连接器,线对板连接器的选型。
产品型号
|
品类
|
PCB Contact Termination Area Plating Material Thickness(μm、μin)
|
Mating Square Post Dimension(in、mm)
|
Contact Mating Area Plating Material
|
Circuit Application
|
Primary Product Color
|
Contact Layout
|
Housing Material
|
Connector & Contact Terminates To
|
Contact Type
|
Contact Base Material
|
Connector System
|
Contact Current Rating (Max)(A)
|
Operating Voltage(V)
|
PCB Thickness (Recommended)(mm、in)
|
PCB Contact Termination Area Plating Material
|
Contact Mating Area Plating Material Thickness(μm、μin)
|
Connector Mounting Type
|
Number of Rows
|
Number of Positions
|
Operating Temperature Range
|
UL Flammability Rating
|
Centerline (Pitch)(in、mm)
|
Termination Method to Printed Circuit Board
|
2823187-8
|
PCB Mount Header
|
3–5µm/100–200µin
|
.5mm/.02inch
|
Tin
|
Signal
|
Black
|
Inline
|
Liquid Crystal Polymer (LCP)
|
Printed Circuit Board
|
Pin
|
Phosphor Bronze
|
Wire-to-Board/Board-to-Board
|
2AMP
|
250VAC
|
1.2mm/.047inch
|
Tin
|
100–200µin/3–5µm
|
Board Mount
|
1
|
8
|
-40 – 105°C/-40 – 221°F
|
UL 94V-0
|
.079inch/2mm
|
Through Hole - Solder
|
WAYON 车规级MOSFET选型表
WAYON 提供车规级MOSFET选型:VDS(V):20-100,ID(A)@TA=25℃(Max.):0.13-200,Rds(on)(mΩ)@Vgs=10V(Max.):1-500.
产品型号
|
品类
|
Package
|
type
|
VDS(V)
|
ID(A)@TA=25℃(Max.)
|
Rds(on)(mΩ)@Vgs=10V(Max.)
|
Tch(°C)
|
WMB26N06TS-AT
|
车规级MOSFET
|
DFN5*6
|
N-ch
|
60 V
|
26 A
|
32 mΩ max
|
150°C
|
TE connectivy Wire-to-Board Connector选型表
TE(泰科)Wire-to-Board Connector Assemblies & Housings选型表提供位数1-100,行数:1-6的选型,包括:Cap,Housing for Female Terminals,Housing for Male Terminals,Jack,Plug,Plug to Plug Relay Header,Receptacle
产品型号
|
品类
|
Connector System
|
Sealable
|
Number of Positions
|
Number of Rows
|
Primary Product Color
|
Mating Retention Type
|
Panel Mount Feature
|
Connector Mounting Type
|
Centerline (Pitch)(mm、in)
|
Operating Temperature Range(℃、℉)
|
Operating Voltage(V)
|
Contact Current Rating (Max)(A)
|
Termination Method to Wire & Cable
|
PCB Mount Retention
|
PCB Mount Alignment
|
Housing Material
|
Wire Size(AWG、mm²)
|
UL Flammability Rating
|
Agency/Standard
|
Glow Wire Rating
|
Packaging Method
|
Packaging Quantity
|
Row-to-Row Spacing(mm、in)
|
PCB Thickness (Recommended)(mm、in)
|
Insulation Resistance(MΩ)
|
Dielectric Withstanding Voltage (Max)(V)
|
Approved Standards
|
1-1241968-5
|
Plug
|
Wire-to-Panel
|
No
|
10
|
1
|
Natural
|
Latch
|
With Panel Mount Feature
|
Panel Mount
|
5 mm[0.197 in]
|
-25 – 105 °C[-13 – 221 °F]
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
-
|
TE connectivity矩形连接器选型表
我们的矩形电源连接器可作为连接器组件、接头或壳体电源连接器类型。我们的连接器系统包括板对板、缆对板、缆对缆、缆对板、线对板、线对面板和线对线。
产品型号
|
品类
|
Circuit Application
|
Connector & Contact Terminates To
|
Connector & Housing Type
|
Contact Type
|
Contact Retention Within Housing
|
Sealable
|
Connector System
|
Contact Current Rating (Max)(A)
|
Operating Voltage(V)
|
Rectangular Power Connector Type
|
Connector Mounting Type
|
Number of Rows
|
Number of Positions
|
Operating Temperature Range(°F、℃)
|
Centerline (Pitch)(inch、mm)
|
Housing Color
|
1-1376383-6
|
Header
|
Power
|
Printed Circuit Board
|
Receptacle
|
Tab
|
Without
|
No
|
Wire-to-Board
|
10AMP
|
300VAC
|
Header
|
Board Mount
|
1
|
3
|
-40–221°F/-40–105°C
|
5mm/.197inch
|
Red
|
SiRON端子台选型表
SiRON提供端子台以下参数选型,额定电压:DC24V,AC220V,额定电流:1A~20A,应用等级:工业级,位数:4~40位。
产品型号
|
品类
|
额定电压
|
额定电流
|
应用等级
|
T001
|
三菱Q系列专用端子台
|
DC24V
|
1A
|
工业级
|
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