1855价格

参考价格:¥0.5418

型号:1855 品牌:Keystone 备注:这里有1855多少钱,2025年最近7天走势,今日出价,今日竞价,1855批发/采购报价,1855行情走势销售排行榜,1855报价。
型号 功能描述 生产厂家&企业 LOGO 操作
1855

FEMALETHREADEDSTANDOFFS

[KEYSTONE] THREADEDSTANDOFFS

etc2List of Unclassifed Manufacturers

etc未分类制造商etc2未分类制造商

etc2
1855

THREADEDSTANDOFFS

[KEYSTONE] THREADEDSTANDOFFS

etc2List of Unclassifed Manufacturers

etc未分类制造商etc2未分类制造商

etc2
1855

FEMALETHREADEDSTANDOFFS

[KEYSTONE] THREADEDSTANDOFFS

etc2List of Unclassifed Manufacturers

etc未分类制造商etc2未分类制造商

etc2
1855

CustomerSpecification

Construction 1)Component11X1HOOKUP a)Conductor22(7/30)AWGTinnedCopper0.030 b)Insulation0.010Wall,Nom.PVC0.050+/-0.002 (1)Color(s) WHITE,BLACK,RED,GREEN,YELLOW,BLUE,BROWN ORANGE,SLATE,VIOLET,WHITE/BLACK,WHITE/RED WHITE/GREEN,WHITE/YELLOW,WHITE/BLUE WHITE

ALPHAWIREAlpha Wire

阿尔法电线

ALPHAWIRE
1855

包装:散装 描述:SMALL 1.2 8X8 ULTRA BRIGHT SQUAR 光电器件 显示器模块 - LED 点阵和群集

Adafruit

Adafruit Industries LLC

Adafruit
1855

包装:盒 描述:RDD 201-2 BLACK 电缆,电线 - 管理 衬套,索环

ETC

知名厂家

1855

1.57mm(.062)Diameter,Standard.062PinandSocketCrimpTerminal,Series1855,Female,withSelectiveGold(Au)PlatedBrassContact,24-30AWG,Reel

文件:143.55 Kbytes Page:3 Pages

MOLEX1Molex Electronics Ltd.

莫仕

MOLEX1
1855

1.57mm(.062)Diameter,Standard.062PinandSocketCrimpTerminal,Series1855,Female,with0.38關m(15關)Gold(Au)PlatedBrassContact,24-30AWG,Reel

文件:143.55 Kbytes Page:3 Pages

MOLEX1Molex Electronics Ltd.

莫仕

MOLEX1
1855

1.57mm(.062)Diameter,Standard.062PinandSocketCrimpTerminal,Series1855,Female,withTin(Sn)PlatedBrassContact,24-30AWG,Reel

文件:131.49 Kbytes Page:3 Pages

MOLEX1Molex Electronics Ltd.

莫仕

MOLEX1
1855

CustomerSpecification

文件:69.67 Kbytes Page:3 Pages

ALPHAWIREAlpha Wire

阿尔法电线

ALPHAWIRE
1855

RDDLockit™StrainReliefBushings–Straight-Thru

文件:130.44 Kbytes Page:1 Pages

HeycoHeyco.

海科

Heyco

CustomerSpecification

Construction 1)Component11X1HOOKUP a)Conductor22(19/34)AWGTinnedCopper0.032 b)Insulation0.010Wall,Nom.PVC0.052+/-0.002 (1)Color(s) WHITE,BLACK,RED,GREEN,YELLOW,BLUE,BROWN ORANGE,SLATE,VIOLET,WHITE/BLACK,WHITE/RED WHITE/GREEN,WHITE/YELLOW,WHITE/BLUE WHIT

ALPHAWIREAlpha Wire

阿尔法电线

ALPHAWIRE

CustomerSpecification

Construction 1)Component11X1HOOKUP a)Conductor22(7/30)AWGTinnedCopper0.030 b)Insulation0.010Wall,Nom.PVC0.050+/-0.002 (1)Color(s) WHITE,BLACK,RED,GREEN,YELLOW,BLUE,BROWN ORANGE,SLATE,VIOLET,WHITE/BLACK,WHITE/RED WHITE/GREEN,WHITE/YELLOW,WHITE/BLUE WHITE

ALPHAWIREAlpha Wire

阿尔法电线

ALPHAWIRE

ConfigurableSignalConditioningEnclosure

Overview TheNationalInstrumentsCA-1000isaconfigurableenclosuredesignedformaximumuser-definedI/Oconnectivityandflexibility.Itisaportableenclosureforlaptop,desktop,andrack-mountapplications.YoucaninstallmanyNIaccessoriesintheNICA-1000,suchastheSC-204xsignal

NI

National Instruments Inc.

NI

VC-K-T1-R-Sleevehousing

Sleevehousing,Rangeofarticles:VARIOCON,design:VC1,housingmaterial:Polyamide, color:gray,Whenusingfiberoptics,thebendingradiiofthecablemanufacturersmustbe observed.

PhoenixPHOENIX CONTACT

菲尼克斯电气德国菲尼克斯电气集团

Phoenix

VC-K-T2-R-Sleevehousing

Sleevehousing,Rangeofarticles:VARIOCON,design:VC2,housingmaterial:Polyamide, color:gray,Whenusingfiberoptics,thebendingradiiofthecablemanufacturersmustbe observed.

PhoenixPHOENIX CONTACT

菲尼克斯电气德国菲尼克斯电气集团

Phoenix

VC-K-T3-R-Sleevehousing

Sleevehousing,Rangeofarticles:VARIOCON,design:VC3,housingmaterial:Polyamide, color:gray,Whenusingfiberoptics,thebendingradiiofthecablemanufacturersmustbe observed.

PhoenixPHOENIX CONTACT

菲尼克斯电气德国菲尼克斯电气集团

Phoenix

VC-K-T4-R-Sleevehousing

Sleevehousing,Rangeofarticles:VARIOCON,design:VC4,housingmaterial:Polyamide, color:gray

PhoenixPHOENIX CONTACT

菲尼克斯电气德国菲尼克斯电气集团

Phoenix

VC-MEMV-T1-R-Sleevehousing

Sleevehousing,Rangeofarticles:VARIOCON,design:VC1,housingmaterial:Zincdie-cast,color:nickel, Whenusingfiberoptics,thebendingradiiofthecablemanufacturersmustbeobserved.

PhoenixPHOENIX CONTACT

菲尼克斯电气德国菲尼克斯电气集团

Phoenix

CustomerSpecification

Construction 1)Component11X1HOOKUP a)Conductor22(19/34)AWGTinnedCopper0.032 b)Insulation0.010Wall,Nom.PVC0.052+/-0.002 (1)Color(s) WHITE,BLACK,RED,GREEN,YELLOW,BLUE,BROWN ORANGE,SLATE,VIOLET,WHITE/BLACK,WHITE/RED WHITE/GREEN,WHITE/YELLOW,WHITE/BLUE WHIT

ALPHAWIREAlpha Wire

阿尔法电线

ALPHAWIRE

VC-D-AF-Panel-mountflange

Panelmountingflangeforscrewlocking,forfixingthecrimpcontactinserttothehousingpanel, withtwoM3threadedholesandoneM4threadedhole Youradvantages •Pinandsocketcontactscanbeusedonboththepluganddevicesides •ContactcarriershavetwofurthercapacitivePEcon

PhoenixPHOENIX CONTACT

菲尼克斯电气德国菲尼克斯电气集团

Phoenix

SOLARLOKPhotovoltaicInterconnectionSystem

SimpleandReliableSystemInterconnectionofIndividualSolarModulesRighttotheDC/ACConverters Marketexpansionoftheformerlyregulatedenergysupplysector,increasedglobalenvironmentalawarenessandgovernmentscommittingthemselvestomorestringentenvironmentaltargetshaveopened

MACOMTyco Electronics

玛科姆技术方案控股有限公司

MACOM

VC-MP-T1-R-Sleevehousing

Sleevehousing,Rangeofarticles:VARIOCON,design:VC1,housingmaterial:Zincdie-cast,color:gray, Whenusingfiberoptics,thebendingradiiofthecablemanufacturersmustbeobserved.

PhoenixPHOENIX CONTACT

菲尼克斯电气德国菲尼克斯电气集团

Phoenix

VC-MP-T2-R-Sleevehousing

Sleevehousing,Rangeofarticles:VARIOCON,design:VC2,housingmaterial:Zincdie-cast,color:gray, Whenusingfiberoptics,thebendingradiiofthecablemanufacturersmustbeobserved.

PhoenixPHOENIX CONTACT

菲尼克斯电气德国菲尼克斯电气集团

Phoenix

VC-MP-T3-R-Sleevehousing

Sleevehousing,Rangeofarticles:VARIOCON,design:VC3,housingmaterial:Zincdie-cast,color:gray, Whenusingfiberoptics,thebendingradiiofthecablemanufacturersmustbeobserved.

PhoenixPHOENIX CONTACT

菲尼克斯电气德国菲尼克斯电气集团

Phoenix

1855DNH-75OhmSDICoax,MiniRG-59,22AWGSolidBC,Tri-Shield,LSZH-CJkt

ProductDescription 75OhmSDICoax,MiniRG-59,22AWGSolidBareCopperConductor,PEInsulation,Foil+90%TinnedCopperBraid+FoilShield,LSZHJacket,Dca.IEC 60332-3-24.

BELDENBelden Inc.

百通电缆设计科技有限公司

BELDEN

1855DNH-75OhmSDICoax,MiniRG-59,22AWGSolidBC,Tri-Shield,LSZH-CJkt

ProductDescription 75OhmSDICoax,MiniRG-59,22AWGSolidBareCopperConductor,PEInsulation,Foil+90%TinnedCopperBraid+FoilShield,LSZHJacket,Dca.IEC 60332-3-24.

BELDENBelden Inc.

百通电缆设计科技有限公司

BELDEN

1855DNH-75OhmSDICoax,MiniRG-59,22AWGSolidBC,Tri-Shield,LSZH-CJkt

ProductDescription 75OhmSDICoax,MiniRG-59,22AWGSolidBareCopperConductor,PEInsulation,Foil+90%TinnedCopperBraid+FoilShield,LSZHJacket,Dca.IEC 60332-3-24.

BELDENBelden Inc.

百通电缆设计科技有限公司

BELDEN

1855ECH-75OhmSDICoax,MiniRG-59,22AWGSolidBC,Foil90%TCBraid,LSZH-CJkt

ProductDescription 75OhmSDICoax,MiniRG-59,22AWGSolidBareCopperConductor,PEInsulation,Foil+90%TinnedCopperBraidShield,LSZHJacket,Dca.IEC 60332-3-24.

BELDENBelden Inc.

百通电缆设计科技有限公司

BELDEN

1855ECH-75OhmSDICoax,MiniRG-59,22AWGSolidBC,Foil90%TCBraid,LSZH-CJkt

ProductDescription 75OhmSDICoax,MiniRG-59,22AWGSolidBareCopperConductor,PEInsulation,Foil+90%TinnedCopperBraidShield,LSZHJacket,Dca.IEC 60332-3-24.

BELDENBelden Inc.

百通电缆设计科技有限公司

BELDEN

1855ECH-75OhmSDICoax,MiniRG-59,22AWGSolidBC,Foil90%TCBraid,LSZH-CJkt

ProductDescription 75OhmSDICoax,MiniRG-59,22AWGSolidBareCopperConductor,PEInsulation,Foil+90%TinnedCopperBraidShield,LSZHJacket,Dca.IEC 60332-3-24.

BELDENBelden Inc.

百通电缆设计科技有限公司

BELDEN

1855ELW-75OhmSDICoax,MiniRG-59,22AWGSolidBC,Foil90%TCBraid,LSZHJkt,CPR:Cca

ProductDescription 75OhmSDICoax,MiniRG-59,22AWGSolidBareCopperConductor,PEInsulation,Foil+90%TinnedCopperBraidShield,LSZHJacket,Cca.

BELDENBelden Inc.

百通电缆设计科技有限公司

BELDEN

1855ELW-75OhmSDICoax,MiniRG-59,22AWGSolidBC,Foil90%TCBraid,LSZHJkt,CPR:Cca

ProductDescription 75OhmSDICoax,MiniRG-59,22AWGSolidBareCopperConductor,PEInsulation,Foil+90%TinnedCopperBraidShield,LSZHJacket,Cca.

BELDENBelden Inc.

百通电缆设计科技有限公司

BELDEN

1855ELW-75OhmSDICoax,MiniRG-59,22AWGSolidBC,Foil90%TCBraid,LSZHJkt,CPR:Cca

ProductDescription 75OhmSDICoax,MiniRG-59,22AWGSolidBareCopperConductor,PEInsulation,Foil+90%TinnedCopperBraidShield,LSZHJacket,Cca.

BELDENBelden Inc.

百通电缆设计科技有限公司

BELDEN

1855ELW-75OhmSDICoax,MiniRG-59,22AWGSolidBC,Foil90%TCBraid,LSZHJkt,CPR:Cca

ProductDescription 75OhmSDICoax,MiniRG-59,22AWGSolidBareCopperConductor,PEInsulation,Foil+90%TinnedCopperBraidShield,LSZHJacket,Cca.

BELDENBelden Inc.

百通电缆设计科技有限公司

BELDEN

1855ELW-75OhmSDICoax,MiniRG-59,22AWGSolidBC,Foil90%TCBraid,LSZHJkt,CPR:Cca

ProductDescription 75OhmSDICoax,MiniRG-59,22AWGSolidBareCopperConductor,PEInsulation,Foil+90%TinnedCopperBraidShield,LSZHJacket,Cca.

BELDENBelden Inc.

百通电缆设计科技有限公司

BELDEN

1855ELW-75OhmSDICoax,MiniRG-59,22AWGSolidBC,Foil90%TCBraid,LSZHJkt,CPR:Cca

ProductDescription 75OhmSDICoax,MiniRG-59,22AWGSolidBareCopperConductor,PEInsulation,Foil+90%TinnedCopperBraidShield,LSZHJacket,Cca.

BELDENBelden Inc.

百通电缆设计科技有限公司

BELDEN

1855ELW-75OhmSDICoax,MiniRG-59,22AWGSolidBC,Foil90%TCBraid,LSZHJkt,CPR:Cca

ProductDescription 75OhmSDICoax,MiniRG-59,22AWGSolidBareCopperConductor,PEInsulation,Foil+90%TinnedCopperBraidShield,LSZHJacket,Cca.

BELDENBelden Inc.

百通电缆设计科技有限公司

BELDEN

1855ELW-75OhmSDICoax,MiniRG-59,22AWGSolidBC,Foil90%TCBraid,LSZHJkt,CPR:Cca

ProductDescription 75OhmSDICoax,MiniRG-59,22AWGSolidBareCopperConductor,PEInsulation,Foil+90%TinnedCopperBraidShield,LSZHJacket,Cca.

BELDENBelden Inc.

百通电缆设计科技有限公司

BELDEN

1855ELW-75OhmSDICoax,MiniRG-59,22AWGSolidBC,Foil90%TCBraid,LSZHJkt,CPR:Cca

ProductDescription 75OhmSDICoax,MiniRG-59,22AWGSolidBareCopperConductor,PEInsulation,Foil+90%TinnedCopperBraidShield,LSZHJacket,Cca.

BELDENBelden Inc.

百通电缆设计科技有限公司

BELDEN

1855ELW-75OhmSDICoax,MiniRG-59,22AWGSolidBC,Foil90%TCBraid,LSZHJkt,CPR:Cca

ProductDescription 75OhmSDICoax,MiniRG-59,22AWGSolidBareCopperConductor,PEInsulation,Foil+90%TinnedCopperBraidShield,LSZHJacket,Cca.

BELDENBelden Inc.

百通电缆设计科技有限公司

BELDEN

1855ELW-75OhmSDICoax,MiniRG-59,22AWGSolidBC,Foil90%TCBraid,LSZHJkt,CPR:Cca

ProductDescription 75OhmSDICoax,MiniRG-59,22AWGSolidBareCopperConductor,PEInsulation,Foil+90%TinnedCopperBraidShield,LSZHJacket,Cca.

BELDENBelden Inc.

百通电缆设计科技有限公司

BELDEN

1855ELW-75OhmSDICoax,MiniRG-59,22AWGSolidBC,Foil90%TCBraid,LSZHJkt,CPR:Cca

ProductDescription 75OhmSDICoax,MiniRG-59,22AWGSolidBareCopperConductor,PEInsulation,Foil+90%TinnedCopperBraidShield,LSZHJacket,Cca.

BELDENBelden Inc.

百通电缆设计科技有限公司

BELDEN

75OhmSDI10Coax,MiniRG-59,22AWGSolidBC,Foil90%TCBraid,LSZHJkt

ProductDescription 75OhmSDI10Coax,MiniRG-59,22AWGSolidBareCopperConductor,PEInsulation,Foil+90%TinnedCopperBraidShield,LSZHJacket.

BELDENBelden Inc.

百通电缆设计科技有限公司

BELDEN

75OhmSDI3Coax,MiniRG-59,22AWGSolidBC,Foil90%TCBraid,LSZHJkt

ProductDescription 75OhmSDI3Coax,MiniRG-59,22AWGSolidBareCopperConductor,PEInsulation,Foil+90%TinnedCopperBraidShield,LSZHJacket.

BELDENBelden Inc.

百通电缆设计科技有限公司

BELDEN

75OhmSDI3Coax,MiniRG-59,22AWGSolidBC,Foil90%TCBraid,LSZHJkt

ProductDescription 75OhmSDI3Coax,MiniRG-59,22AWGSolidBareCopperConductor,PEInsulation,Foil+90%TinnedCopperBraidShield,LSZHJacket.

BELDENBelden Inc.

百通电缆设计科技有限公司

BELDEN

75OhmSDI3Coax,MiniRG-59,22AWGSolidBC,Foil90%TCBraid,LSZHJkt

ProductDescription 75OhmSDI3Coax,MiniRG-59,22AWGSolidBareCopperConductor,PEInsulation,Foil+90%TinnedCopperBraidShield,LSZHJacket.

BELDENBelden Inc.

百通电缆设计科技有限公司

BELDEN

75OhmSDI5Coax,MiniRG-59,22AWGSolidBC,Foil90%TCBraid,LSZHJkt

ProductDescription 75OhmSDI5Coax,MiniRG-59,22AWGSolidBareCopperConductor,PEInsulation,Foil+90%TinnedCopperBraidShield,LSZHJacket.

BELDENBelden Inc.

百通电缆设计科技有限公司

BELDEN

75OhmSDI5Coax,MiniRG-59,22AWGSolidBC,Foil90%TCBraid,LSZHJkt

ProductDescription 75OhmSDI5Coax,MiniRG-59,22AWGSolidBareCopperConductor,PEInsulation,Foil+90%TinnedCopperBraidShield,LSZHJacket.

BELDENBelden Inc.

百通电缆设计科技有限公司

BELDEN

75OhmSDI5Coax,MiniRG-59,22AWGSolidBC,Foil90%TCBraid,LSZHJkt

ProductDescription 75OhmSDI5Coax,MiniRG-59,22AWGSolidBareCopperConductor,PEInsulation,Foil+90%TinnedCopperBraidShield,LSZHJacket.

BELDENBelden Inc.

百通电缆设计科技有限公司

BELDEN

75OhmSDI6Coax,MiniRG-59,22AWGSolidBC,Foil90%TCBraid,LSZHJkt

ProductDescription 75OhmSDI6Coax,MiniRG-59,22AWGSolidBareCopperConductor,PEInsulation,Foil+90%TinnedCopperBraidShield,LSZHJacket.

BELDENBelden Inc.

百通电缆设计科技有限公司

BELDEN

1855ENH-75OhmSDICoax,MiniRG-59,22AWGSolidBC,Foil90%TCBraid,LSZHJkt

ProductDescription 75OhmSDICoax,MiniRG-59,22AWGSolidBareCopperConductor,PEInsulation,Foil+90%TinnedCopperBraidShield,LSZHJacket,Dca.IEC 60332-1-2.

BELDENBelden Inc.

百通电缆设计科技有限公司

BELDEN

1855ENH-75OhmSDICoax,MiniRG-59,22AWGSolidBC,Foil90%TCBraid,LSZHJkt

ProductDescription 75OhmSDICoax,MiniRG-59,22AWGSolidBareCopperConductor,PEInsulation,Foil+90%TinnedCopperBraidShield,LSZHJacket,Dca.IEC 60332-1-2.

BELDENBelden Inc.

百通电缆设计科技有限公司

BELDEN

1855ENH-75OhmSDICoax,MiniRG-59,22AWGSolidBC,Foil90%TCBraid,LSZHJkt

ProductDescription 75OhmSDICoax,MiniRG-59,22AWGSolidBareCopperConductor,PEInsulation,Foil+90%TinnedCopperBraidShield,LSZHJacket,Dca.IEC 60332-1-2.

BELDENBelden Inc.

百通电缆设计科技有限公司

BELDEN

1855ENH-75OhmSDICoax,MiniRG-59,22AWGSolidBC,Foil90%TCBraid,LSZHJkt

ProductDescription 75OhmSDICoax,MiniRG-59,22AWGSolidBareCopperConductor,PEInsulation,Foil+90%TinnedCopperBraidShield,LSZHJacket,Dca.IEC 60332-1-2.

BELDENBelden Inc.

百通电缆设计科技有限公司

BELDEN

1855ENH-75OhmSDICoax,MiniRG-59,22AWGSolidBC,Foil90%TCBraid,LSZHJkt

ProductDescription 75OhmSDICoax,MiniRG-59,22AWGSolidBareCopperConductor,PEInsulation,Foil+90%TinnedCopperBraidShield,LSZHJacket,Dca.IEC 60332-1-2.

BELDENBelden Inc.

百通电缆设计科技有限公司

BELDEN

1855ENH-75OhmSDICoax,MiniRG-59,22AWGSolidBC,Foil90%TCBraid,LSZHJkt

ProductDescription 75OhmSDICoax,MiniRG-59,22AWGSolidBareCopperConductor,PEInsulation,Foil+90%TinnedCopperBraidShield,LSZHJacket,Dca.IEC 60332-1-2.

BELDENBelden Inc.

百通电缆设计科技有限公司

BELDEN

1855ENH-75OhmSDICoax,MiniRG-59,22AWGSolidBC,Foil90%TCBraid,LSZHJkt

ProductDescription 75OhmSDICoax,MiniRG-59,22AWGSolidBareCopperConductor,PEInsulation,Foil+90%TinnedCopperBraidShield,LSZHJacket,Dca.IEC 60332-1-2.

BELDENBelden Inc.

百通电缆设计科技有限公司

BELDEN

1855ENH-75OhmSDICoax,MiniRG-59,22AWGSolidBC,Foil90%TCBraid,LSZHJkt

ProductDescription 75OhmSDICoax,MiniRG-59,22AWGSolidBareCopperConductor,PEInsulation,Foil+90%TinnedCopperBraidShield,LSZHJacket,Dca.IEC 60332-1-2.

BELDENBelden Inc.

百通电缆设计科技有限公司

BELDEN

1855ENH-75OhmSDICoax,MiniRG-59,22AWGSolidBC,Foil90%TCBraid,LSZHJkt

ProductDescription 75OhmSDICoax,MiniRG-59,22AWGSolidBareCopperConductor,PEInsulation,Foil+90%TinnedCopperBraidShield,LSZHJacket,Dca.IEC 60332-1-2.

BELDENBelden Inc.

百通电缆设计科技有限公司

BELDEN

1855产品属性

  • 类型

    描述

  • 型号

    1855

  • 功能描述

    电缆固定件和配件 RDD 201-2 BLACK

  • RoHS

  • 制造商

    Heyco

  • 类型

    Cable Grips, Liquid Tight

  • 材料

    Nylon

  • 颜色

    Black

  • 安装方法

    Cable

  • 最大光束直径

    11.4 mm

更新时间:2025-7-19 16:39:00
IC供应商 芯片型号 品牌 批号 封装 库存 备注 价格
NS
2016+
DIP8
6523
只做原装正品现货!或订货!
PHI
24+
1020
MOLEX/莫仕
2508+
/
287692
一级代理,原装现货
SOLTEAM
6
公司优势库存 热卖中!
Weidmüller
23+
原厂封装
8052
只做原装只有原装现货实报
KeystoneElectronics
363
全新原装 货期两周
JRC
NA
8560
一级代理 原装正品假一罚十价格优势长期供货
TE/泰科
23+
NA/原装
82985
代理-优势-原装-正品-现货*期货
SNC
24+
NA/
30
优势代理渠道,原装正品,可全系列订货开增值税票
NO
23+
QFP
98900
原厂原装正品现货!!

1855芯片相关品牌

  • ATS2
  • BETLUX
  • delta
  • Diotec
  • ETAL
  • KG
  • LUMBERG
  • Molex
  • MOLEX11
  • ONSEMI
  • WEIDMULLER
  • YFWDIODE

1855数据表相关新闻