类别是'category.矩形连接器 - 针座,公插针' (10000)

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对比

图片

产品型号

品牌

数据表

库存

价格(含增值税)

数量

Rohs

工厂交货时间

生命周期状态

触点镀层

底架

安装类型

引脚数

触点形状

房屋材料

质量

安装选项1

操作温度

包装

已出版

系列

JESD-609代码

无铅代码

零件状态

湿度敏感性等级(MSL)

终端

ECCN 代码

连接器类型

定位的数量

最高工作温度

最小工作温度

颜色

应用

行数

性别

附加功能

HTS代码

紧固类型

电压 - 额定直流

MIL一致性

符合 DIN 标准

IEC一致性

过滤功能

触点类型

混合接触

选项

额定电流

螺距

触头总数

方向

屏蔽/屏蔽

端子间距

深度

绝缘高度

样式

已加载定位数量

Reach合规守则

额定电流

间距 - 配套

绝缘颜色

导体数量

参考标准

电压 - 额定交流

可靠性

审批机构

行间距-交配

触点长度 - 柱子

护罩,护罩

PCB行数

螺纹距离

接头数量

触点表面处理 - 柱子

PCB接触图案

本体宽度

触点性别

UL可燃性规范

房屋颜色

引线长度

空壳

本体深度

额定电流(信号)

接触总长度

触点电阻

绝缘电阻

行间距

配套触点间距

弱电

电路数量

最大额定电压(交流)

最大额定电流

偏振键

介电耐压

端口的数量

线规(最大值)

线规(最小值)

电缆长度

PCB 触点行距

耐用性

最大额定电压(直流)

插入力-最大值

拉坯力 - 最小值

绝缘材料

配套立柱长度

感应距离

特征

高度

长度

宽度

电镀厚度

触点表面处理厚度 - 配套

触点表面处理厚度 - 柱子

堆栈高度(配接)

PCB厚度

标签厚度

叠层高度

宽度 - 卡舌

材料可燃性等级

辐射硬化

达到SVHC

RoHS状态

可燃性等级

无铅

TSM-104-01-L-SH
TSM-104-01-L-SH
Samtec Inc. 数据表

1357 In Stock

-

最小起订量: 1

最小包装量: 1

3 Weeks

Surface Mount, Right Angle

Square

Polymer

LOCKING

Gold

0.230 5.84mm

磷青铜

Liquid Crystal Polymer (LCP)

-55°C~125°C

Tube

2000

TSM

e3

yes

活跃

1 (Unlimited)

Solder

Header

4

1

Male

E.L.P.

Push-Pull

NO

NO

NO

NO

公母针

NO

GENERAL PURPOSE

4

Horizontal

10.92mm

0.120 3.05mm

板对板或电缆

All

7A

0.100 2.54mm

Black

ONE

UL

COMMERCIAL

Unshrouded

1

Tin

RECTANGULAR

475V

7A

10.16mm

10.0μin 0.25μm

UL94 V-0

无SVHC

ROHS3 Compliant

无铅

15120262601000
15120262601000
HARTING 数据表

N/A

-

最小起订量: 1

最小包装量: 1

4 Weeks

表面贴装

表面贴装

Square

Liquid Crystal Polymer

Gold

0.157 4.00mm

Copper Alloy

Liquid Crystal Polymer (LCP)

-55°C~125°C

Cut Tape (CT)

har-flex®

活跃

1 (Unlimited)

Solder

EAR99

Header

26

2

Male

8536.69.40.40

Push-Pull

NO

NO

NO

NO

公母针

NO

GENERAL PURPOSE

26

Straight

0.319 8.10mm

板对板或电缆

All

1.7A

0.050 1.27mm

Black

0.050 (1.27mm)

Shrouded - 4 Wall

Tin

Board Guide, Pick and Place, Solder Retention

3.25mm

UL94 V-0

无SVHC

ROHS3 Compliant

无铅

DF13C-7P-1.25V(21)
DF13C-7P-1.25V(21)
Hirose Electric Co Ltd 数据表

4000 In Stock

-

最小起订量: 1

最小包装量: 1

10 Weeks

表面贴装

Square

Polyamide

LOCKING

Tin

Brass

Polyamide (PA), Nylon

-35°C~85°C

Tape & Reel (TR)

DF13

e3

yes

活跃

1 (Unlimited)

Solder

Header

7

1

LOW PROFILE

棘爪锁

NO

NO

NO

NO

公母针

NO

GENERAL PURPOSE

7

Straight

3.4mm

0.189 4.80mm

Board to Cable/Wire

All

1A

0.049 1.25mm

Beige

ONE

UL

COMMERCIAL

Shrouded - 3 Wall

1

RECTANGULAR

Male

94V-0

30mOhm

500000000Ohm

0.049 inch

150V

1A

50 Cycles

3.0024 N

Solder Retention

13.4mm

39.4μin 1.00μm

5.8mm

UL94 V-0

符合RoHS标准

无铅

0022122144
0022122144
Molex 数据表

2165 In Stock

-

最小起订量: 1

最小包装量: 1

10 Weeks

Gold

通孔

Through Hole, Right Angle

Square

Nylon

Gold

0.264 6.70mm

Brass

Polyamide (PA), Nylon

Bulk

KK 7478

活跃

1 (Unlimited)

Solder

Header

14

75°C

0°C

White

Automotive, General Purpose, Medical, Telecommunications

1

Male

摩擦锁

250V

公母针

2.54mm

直角

12.83mm

0.250 6.35mm

板对板或电缆

All

4A

0.100 2.54mm

White

0.141 3.58mm

Shrouded - 1 Wall

2.54mm

14

Tin

White

10mOhm

50GOhm

14

35.56mm

20.0μin 0.51μm

100.0μin 2.54μm

UL94 V-0

ROHS3 Compliant

M20-9981045
M20-9981045
Harwin Inc. 数据表

490 In Stock

-

最小起订量: 1

最小包装量: 1

13 Weeks

通孔

通孔

Square

Nylon

56.699046g

Gold

0.240 6.10mm

Brass

Polyamide (PA6T), Nylon 6T

-40°C~105°C

Bulk

2006

M20

e4

yes

活跃

1 (Unlimited)

Solder

Header, Cuttable

20

2

Male

Push-Pull

750V

NO

NO

NO

NO

公母针

NO

GENERAL PURPOSE

3A per Contact

Straight

5.08mm

0.100 2.54mm

板对板或电缆

All

3A

0.100 2.54mm

750V

0.100 (2.54mm)

0.118 3.00mm

Unshrouded

2.54mm

94V-0

Black

0.460 11.68mm

25mOhm

10GOhm

3A

8.93mm

25.4mm

12.7mm

9.94mm 10.64mm 11.04mm 16.54mm

UL94 V-0

无SVHC

ROHS3 Compliant

A2-2PA-2.54DSA(71)
A2-2PA-2.54DSA(71)
Hirose Electric Co Ltd 数据表

17171 In Stock

-

最小起订量: 1

最小包装量: 1

12 Weeks

通孔

通孔

Square

PBT

Gold

0.236 6.00mm

Brass

Polybutylene Terephthalate (PBT)

-55°C~85°C

Bulk

A2

e3

yes

活跃

1 (Unlimited)

Solder

Header

2

1

POLARIZED

Push-Pull

NO

NO

NO

NO

公母针

NO

GENERAL PURPOSE

Straight

2.54mm

0.100 2.54mm

板对板或电缆

All

3A

0.100 2.54mm

ONE

COMMERCIAL

0.118 3.00mm

Unshrouded

1

Tin

RECTANGULAR

Male

94V-0

Black

3A

0.454 11.54mm

15mOhm

1GOhm

200V

3A

4.78mm

8.00μin 0.203μm

78.7μin 2.00μm

UL94 V-0

符合RoHS标准

无铅

A1-20PA-2.54DSA(71)
A1-20PA-2.54DSA(71)
Hirose Electric Co Ltd 数据表

1974 In Stock

-

最小起订量: 1

最小包装量: 1

10 Weeks

通孔

通孔

Square

Polybutylene

Gold

0.236 6.00mm

Brass

Polybutylene Terephthalate (PBT)

-55°C~85°C

Tray

A1

e3

yes

活跃

1 (Unlimited)

Solder

EAR99

Header

20

2

POLARIZED

8536.69.40.40

Push-Pull

NO

NO

NO

NO

公母针

NO

GENERAL PURPOSE

Straight

5.08mm

0.100 2.54mm

板对板或电缆

All

3A

0.100 2.54mm

ONE

UL

200V

COMMERCIAL

0.100 (2.54mm)

0.118 3.00mm

Unshrouded

2

Tin

RECTANGULAR

94V-0

Black

3A

0.454 11.54mm

15mOhm

1000000000Ohm

0.1 inch

200V

3A

650VAC V

500 Cycles

8.54mm

25.1mm

8μin

8.00μin 0.203μm

78.7μin 2.00μm

UL94 V-0

符合RoHS标准

1722982116
1722982116
Molex 数据表

1926 In Stock

-

最小起订量: 1

最小包装量: 1

13 Weeks

通孔

通孔

Square

Tin

Copper Alloy

Liquid Crystal Polymer (LCP)

400V

-40°C~105°C

Bulk

2015

Ultra-Fit 172298

活跃

1 (Unlimited)

Kinked Pin, Solder

EAR99

Header

16

Automotive, General Purpose, Industrial, Lighting, Medical, Military, Telecommunications

2

8536.69.40.30

插销座

公母针

0.465 11.80mm

Board to Cable/Wire

All

0.138 3.50mm

Natural

0.181 (4.60mm)

0.126 3.20mm

Shrouded - 4 Wall

电路板指南

60.0μin 1.52μm

60.0μin 1.52μm

26.99mm

UL94 V-0

ROHS3 Compliant

0010897203
0010897203
Molex 数据表

36 In Stock

-

最小起订量: 1

最小包装量: 1

8 Weeks

通孔

Square

Gold

0.320 8.13mm

Copper Alloy

Liquid Crystal Polymer (LCP), Glass Filled

Bulk

C-Grid 70280

活跃

1 (Unlimited)

Solder

Header, Breakaway

20

Automotive, General Purpose, Lighting, Medical, Telecommunications

2

Push-Pull

公母针

0.090 2.29mm

板对板或电缆

All

0.100 2.54mm

Black

0.100 (2.54mm)

0.110 2.79mm

Unshrouded

Tin

0.520 13.21mm

30.0μin 0.76μm

74.8μin 1.90μm

UL94 V-0

ROHS3 Compliant

0908143720
0908143720
Molex 数据表

36 In Stock

-

最小起订量: 1

最小包装量: 1

30 Weeks

Gold

表面贴装

表面贴装

Rectangular

Nylon

Palladium-Nickel

0.085 2.15mm

插装黄铜

Polyamide (PA), Nylon, Glass Filled

Tape & Reel (TR)

Picoflex PF-50 90814

yes

活跃

1 (Unlimited)

Solder

EAR99

Header

20

105°C

-40°C

Automotive, General Purpose, Industrial, Medical

1

LOW PROFILE, POLARIZED

8536.69.40.40

Push-Pull

NO

NO

NO

NO

公头刀片

NO

1.2A

20

Vertical

6.9mm

0.161 4.10mm

Board to Cable/Wire

All

2.4A

0.050 1.27mm

Natural

ONE

UL

COMMERCIAL

Shrouded - 2 Wall

2

Tin

STAGGERED

94V-0

Beige

15mOhm

0.05 inch

18

250V

抛丸器

750VAC V

250V

.2502 N

29.18mm

24μin

24.0μin 0.61μm

118.1μin 3.00μm

UL94 V-0

ROHS3 Compliant

1722982306
1722982306
Molex 数据表

1000 In Stock

-

最小起订量: 1

最小包装量: 1

16 Weeks

通孔

通孔

Square

Gold

Copper Alloy

Liquid Crystal Polymer (LCP)

400V

-40°C~120°C

Bulk

2015

Ultra-Fit 172298

活跃

1 (Unlimited)

Kinked Pin, Solder

EAR99

Header

6

Automotive, General Purpose, Industrial, Lighting, Medical, Military, Telecommunications

2

插销座

公母针

0.465 11.80mm

Board to Cable/Wire

All

0.138 3.50mm

Natural

0.181 (4.60mm)

0.126 3.20mm

Shrouded - 4 Wall

Tin

电路板指南

30.0μin 0.76μm

60.0μin 1.52μm

26.99mm

UL94 V-0

ROHS3 Compliant

1718140010
1718140010
Molex 数据表

2972 In Stock

-

最小起订量: 1

最小包装量: 1

12 Weeks

Through Hole, Right Angle

Square

LOCKING

Tin

0.446 11.33mm

Brass

Polyamide (PA), Nylon

80°C

-40°C

Bulk

2013

KK 171814

活跃

1 (Unlimited)

Solder

Header

10

Automotive, General Purpose, Industrial, Medical, Telecommunications

1

摩擦锁

公母针

3.9624mm

0.394 10.00mm

板对板或电缆

All

0.156 3.96mm

Black

ONE

UL, CSA

COMMERCIAL

0.100 2.54mm

Shrouded - 1 Wall

1

RECTANGULAR

0.394 inch

0.659 inch

5A

25 Cycles

60μin

60.0μin 1.52μm

60.0μin 1.52μm

UL94 V-2

ROHS3 Compliant

20021121-00016C4LF
20021121-00016C4LF
Amphenol ICC (FCI) 数据表

N/A

-

最小起订量: 1

最小包装量: 1

7 Weeks

Gold

表面贴装

表面贴装

16

Square

Thermoplastic

Gold

0.120 3.05mm

Copper Alloy

Thermoplastic

125V

Tape & Reel (TR)

Minitek127® 1.27mm

活跃

1 (Unlimited)

Solder

Header

16

85°C

-40°C

Black

2

Male

Push-Pull

公母针

1.27mm

Straight

3.4mm

板对板

All

1A

0.050 1.27mm

Black

0.050 (1.27mm)

Unshrouded

16

Tin

Black

30mOhm

100MOhm

125V

3.05mm

挑选和放置

10.16mm

10.0μin 0.25μm

50.0μin 1.27μm

3mm

UL94 V-0

无SVHC

符合RoHS标准

DF50-50DP-1H(51)
DF50-50DP-1H(51)
Hirose Electric Co Ltd 数据表

10800 In Stock

-

最小起订量: 1

最小包装量: 1

10 Weeks

表面贴装

Surface Mount, Right Angle

Polymer

Gold

Brass

Polyester

100V

-35°C~85°C

Tape & Reel (TR)

2013

DF50

活跃

1 (Unlimited)

Solder

Header

50

2

闩锁

公头刀片

50

直角

0.9906mm

0.354 9.00mm

Board to Cable/Wire

All

1A

0.039 1.00mm

Black

ONE

UL

COMMERCIAL

Shrouded - 4 Wall

2

RECTANGULAR

Male

1A

30mOhm

500MOhm

4 mm

0.039 inch

极化外壳

300VAC V

30 Cycles

Insulated

Solder Retention

28.18mm

2.00μin 0.051μm

2.00μin 0.051μm

UL94 V-0

Unknown

符合RoHS标准

DF50-30DP-1H(51)
DF50-30DP-1H(51)
Hirose Electric Co Ltd 数据表

29400 In Stock

-

最小起订量: 1

最小包装量: 1

10 Weeks

表面贴装

Surface Mount, Right Angle

Polymer

Gold

Brass

Polyester

100V

-35°C~85°C

Cut Tape (CT)

2013

DF50

活跃

1 (Unlimited)

Solder

EAR99

Header

30

2

8536.69.40.40

闩锁

公头刀片

30

直角

0.9906mm

0.354 9.00mm

Board to Cable/Wire

All

1A

0.039 1.00mm

Black

ONE

UL

COMMERCIAL

Shrouded - 4 Wall

2

RECTANGULAR

Male

1A

500MOhm

0.039 inch

极化外壳

5.6896 mm

Solder Retention

2.00μin 0.051μm

2.00μin 0.051μm

UL94 V-0

Unknown

符合RoHS标准

无铅

DF3DZ-6P-2V(21)
DF3DZ-6P-2V(21)
Hirose Electric Co Ltd 数据表

1 In Stock

-

最小起订量: 1

最小包装量: 1

表面贴装

Circular

Polyamide

LOCKING

Tin

Brass

Polyamide (PA), Nylon

250V

-30°C~85°C

Tape & Reel (TR)

2008

DF3

e3

Discontinued

1 (Unlimited)

Solder

Header

6

1

Push-Pull

NO

NO

NO

NO

公母针

NO

GENERAL PURPOSE

6

Straight

2mm

5.6mm

0.232 5.90mm

板对板或电缆

All

3A

0.079 2.00mm

Beige

ONE

UL, CSA

COMMERCIAL

Shrouded - 4 Wall

1

RECTANGULAR

0.22 inch

Male

94V-0

Black

3A

30mOhm

0.079 inch

3A

50 Cycles

Solder Retention

5.9mm

19.5mm

UL94 V-0

符合RoHS标准

无铅

IPBT-103-H2-T-D-GP
IPBT-103-H2-T-D-GP
Samtec Inc. 数据表

6 In Stock

-

最小起订量: 1

最小包装量: 1

3 Weeks

表面贴装

表面贴装

Square

Polymer

Tin

0.260 6.60mm

Copper Alloy

Liquid Crystal Polymer (LCP)

400VAC 565VDC

-55°C~105°C

Bulk

2013

Power Mate® IPBT

e3

yes

活跃

1 (Unlimited)

Solder

EAR99

Header

6

2

Male

POLARIZED, SHROUDED

锁定坡道

NO

NO

NO

NO

公母针

NO

GENERAL PURPOSE

6

Straight

10.77mm

0.380 9.65mm

板对板或电缆

All

0.165 4.20mm

Black

ONE

UL, CSA

COMMERCIAL

0.165 (4.20mm)

Shrouded - 4 Wall

NO

1

进料法兰

24.84mm

UL94 V-0

无SVHC

ROHS3 Compliant

5036601410
5036601410
Molex 数据表

N/A

-

最小起订量: 1

最小包装量: 1

8 Weeks

通孔

Through Hole, Right Angle

Circular

Tin

Brass

Polybutylene Terephthalate (PBT), Glass Filled

Tray

2011

Micro-Lock 503660

yes

Obsolete

1 (Unlimited)

Kinked Pin, Solder

Header

14

1

插销座

公母针

直角

0.236 6.00mm

Board to Cable/Wire

All

0.079 2.00mm

Natural

0.118 3.00mm

Shrouded - 4 Wall

UL94 V-0

ROHS3 Compliant

3793-6302
3793-6302
3M 数据表

N/A

-

最小起订量: 1

最小包装量: 1

6 Weeks

Gold

通孔

通孔

Square

Plastic

474.004027g

0.240 6.10mm

Copper Alloy

Polybutylene Terephthalate (PBT), Polyester, Glass Filled

Gold

-55°C~105°C

Bulk

2007

3000

最后一次购买

1 (Unlimited)

Solder

Header

10

105°C

-55°C

Grey

2

Male

Latch Lock/Eject Hooks, Long

公母针

1A

2.54mm

Straight

0.680 17.27mm

板对板或电缆

All

1.75A

0.100 2.54mm

Black

UL

0.100 (2.54mm)

0.112 2.84mm

Shrouded - 4 Wall

2.54mm

10

Tin-Lead

Grey

3m

0.652 16.56mm

2A

3m

3 m

Keying Slot, Mounting Flange

3m

30.0μin 0.76μm

200.0μin 5.08μm

UL94 V-0

Non-RoHS Compliant

UL94 V-0

DF13-7P-1.25DS(50)
DF13-7P-1.25DS(50)
Hirose Electric Co Ltd 数据表

N/A

-

最小起订量: 1

最小包装量: 1

10 Weeks

通孔

Through Hole, Right Angle

Square

Polyamide

Gold

Brass

Polyamide (PA), Nylon

150V

-35°C~85°C

Tube

DF13

活跃

1 (Unlimited)

Solder

EAR99

Header

7

1

8536.69.40.40

棘爪锁

公母针

直角

0.142 3.60mm

Board to Cable/Wire

All

unknown

1A

0.049 1.25mm

0.091 2.30mm

Shrouded - 4 Wall

1.25mm

Male

Beige

32 AWG

26 AWG

8.00μin 0.203μm

UL94 V-0

符合RoHS标准

无铅

XG4A-6079-A
XG4A-6079-A
Omron Electronics Inc-EMC Div 数据表

45 In Stock

-

最小起订量: 1

最小包装量: 1

7 Weeks

通孔

Through Hole, Right Angle

Square

PBT

Gold

0.240 6.10mm

Brass, Nickel

Polybutylene Terephthalate (PBT), Glass Filled

-55°C~105°C

Bulk

2002

XG4

e3

活跃

1 (Unlimited)

Solder

EAR99

Header, Stackable (2)

60, 60

2

8536.69.40.40

Latch Lock/Eject Hooks, Long

公母针

直角

0.669 17.00mm

Board to Cable/Wire

All

3A

0.100 2.54mm

Black

0.100 (2.54mm)

Shrouded - 4 Wall

120

Tin

Male

20mOhm

1GOhm

300V

3A

Keying Slot, Mounting Flange, Mounting Hardware

5.90μin 0.150μm

78.7μin 2.00μm

UL94 V-0

符合RoHS标准

1053132208
1053132208
Molex 数据表

1339 In Stock

-

最小起订量: 1

最小包装量: 1

9 Weeks

Through Hole, Right Angle

Square

Gold

Brass

Liquid Crystal Polymer (LCP)

250V

-40°C~105°C

Tray

2016

Nano-Fit 105313

e3

活跃

不适用

Solder

EAR99

Header

8

Automotive, General Purpose, Industrial, Medical, Military, Telecommunications

1

POLARIZED

插销座

NO

NO

NO

NO

公母针

NO

0.149 3.78mm

Board to Cable/Wire

All

0.098 2.50mm

Natural

0.126 3.20mm

Shrouded - 4 Wall

Tin

94V-0

NO

电路板指南

15.0μin 0.38μm

59.0μin 1.50μm

ROHS3 Compliant

HTST-110-01-L-DV
HTST-110-01-L-DV
Samtec Inc. 数据表

1 In Stock

-

最小起订量: 1

最小包装量: 1

8 Weeks

表面贴装

Square

Polychlorinated

LOCKING

Gold

0.250 6.35mm

磷青铜

Liquid Crystal Polymer (LCP)

-55°C~125°C

Tube

2006

Flex Stack, HTST

e3

yes

活跃

1 (Unlimited)

Solder

EAR99

Header

20

2

Male

8536.69.40.40

Push-Pull

NO

NO

NO

NO

公母针

NO

GENERAL PURPOSE

20

Straight

9.27mm

0.350 8.89mm

Board to Cable/Wire

All

3.4A per Contact

0.100 2.54mm

Natural

ONE

UL

COMMERCIAL

0.100 (2.54mm)

Shrouded - 4 Wall

2

Tin

RECTANGULAR

0.365 inch

94V-0

5000000000Ohm

0.1 inch

3A

极化外壳

6.858 mm

键槽

33.02mm

10μin

10.0μin 0.25μm

UL94 V-0

无SVHC

ROHS3 Compliant

DF11-26DP-2DSA(08)
DF11-26DP-2DSA(08)
Hirose Electric Co Ltd 数据表

985 In Stock

-

最小起订量: 1

最小包装量: 1

10 Weeks

通孔

Square

Polyamide

锁扣器

Tin

0.118 3.00mm

Brass

Polyamide (PA), Nylon

250V

-30°C~85°C

Bulk

2014

DF11

e3

yes

活跃

1 (Unlimited)

Solder

EAR99

Header

26

2

行插入产品

8536.69.40.40

棘爪锁

NO

NO

NO

NO

公母针

NO

GENERAL PURPOSE

Straight

0.260 6.60mm

板对板或电缆

All

unknown

2A

0.079 2.00mm

Black

ONE

UL, CSA

COMMERCIAL

0.079 (2.00mm)

0.118 3.00mm

Shrouded - 4 Wall

2

RECTANGULAR

0.197 inch

94V-0

2A

0.299 7.60mm

30mOhm

1000000000Ohm

0.079 inch

GUIDE SLOT(S)

650VAC V

30 Cycles

.3058 N

6.6mm

28mm

39.4μin 1.00μm

7.55 7.8mm 8.9mm

UL94 V-0

符合RoHS标准

无铅

179254-2
179254-2
TE Connectivity 数据表

10 In Stock

-

最小起订量: 1

最小包装量: 1

23 Weeks

ACTIVE (Last Updated: 3 days ago)

Tin

通孔

PBT

Signal

未说明

7.0104mm

Brass

Bulk

2007

活跃

Solder

Receptacle, Tab

20

221°C

-22°C

Black

2

Female

2.5mm

Vertical

Unshielded

5.207 mm

Compliant

12V

16.891mm

37.5mm

1.6mm

640μm

1mm

符合RoHS标准

UL94 HB