페이지 355 - 모듈식 커넥터 - 잭 | 커넥터, 상호 연결 | Heisener Electronics
고객 문의
SalesDept@heisener.com +86-755-83210559 ext. 803
로그인/등록
Language Translation

* Please refer to the English Version as our Official Version.

BOM
카트 0

모듈식 커넥터 - 잭

기록 9,949
페이지  355/356
이미지
부품 번호
제조업체
설명
패키지
재고
수량
Number of Positions/Contacts
Number of Ports
Number of Rows
Mounting Type
Orientation
Termination
Shielding
Ratings
Features
LED Color
Ingress Protection
Tab Direction
Contact Material
Contact Finish
82000-514
Stewart Connector

CONN BEZEL

  • Connector Type: -
  • Number of Positions/Contacts: -
  • Number of Ports: -
  • Number of Rows: -
  • Mounting Type: -
  • Orientation: -
  • Termination: -
  • Shielding: -
  • Ratings: -
  • Features: -
  • LED Color: -
  • Ingress Protection: -
  • Tab Direction: -
  • Contact Material: -
  • Contact Finish: -
패키지: -
재고3,852
-
-
-
-
-
-
-
-
-
-
-
-
-
-
0424109418
Molex, LLC

CONN MOD JACK 8P2C VERT UNSHLD

  • Connector Type: Jack
  • Number of Positions/Contacts: 8p2c
  • Number of Ports: 1
  • Number of Rows: 1
  • Mounting Type: Through Hole
  • Orientation: Vertical
  • Termination: Solder
  • Shielding: Unshielded
  • Ratings: Cat3
  • Features: Board Lock, Keyed
  • LED Color: Does Not Contain LED
  • Ingress Protection: -
  • Tab Direction: User Selectable
  • Contact Material: Phosphor Bronze
  • Contact Finish: Gold
패키지: -
재고2,232
8p2c
1
1
Through Hole
Vertical
Solder
Unshielded
Cat3
Board Lock, Keyed
Does Not Contain LED
-
User Selectable
Phosphor Bronze
Gold
10027589-0103LF
Amphenol FCI

CONN MOD JACK 8P8C R/A SHIELDED

  • Connector Type: Jack
  • Number of Positions/Contacts: 8p8c (RJ45, Ethernet)
  • Number of Ports: 10
  • Number of Rows: 1
  • Mounting Type: Through Hole
  • Orientation: 90° Angle (Right)
  • Termination: Solder
  • Shielding: Shielded, EMI Finger
  • Ratings: -
  • Features: Board Lock, Filter
  • LED Color: Does Not Contain LED
  • Ingress Protection: -
  • Tab Direction: Down
  • Contact Material: Phosphor Bronze
  • Contact Finish: Gold, GXT?
패키지: -
재고2,700
8p8c (RJ45, Ethernet)
10
1
Through Hole
90° Angle (Right)
Solder
Shielded, EMI Finger
-
Board Lock, Filter
Does Not Contain LED
-
Down
Phosphor Bronze
Gold, GXT?
RJ11-4L-S
TE Connectivity Corcom Filters

CONN MOD JACK 6P4C R/A UNSHLD

  • Connector Type: Jack
  • Number of Positions/Contacts: 6p4c (RJ11, RJ14)
  • Number of Ports: 1
  • Number of Rows: 1
  • Mounting Type: Through Hole
  • Orientation: 90° Angle (Right)
  • Termination: Solder
  • Shielding: Unshielded
  • Ratings: -
  • Features: Board Lock, Filter, Panel Stops
  • LED Color: Does Not Contain LED
  • Ingress Protection: -
  • Tab Direction: Down
  • Contact Material: Phosphor Bronze
  • Contact Finish: Gold
패키지: -
재고6,282
6p4c (RJ11, RJ14)
1
1
Through Hole
90° Angle (Right)
Solder
Unshielded
-
Board Lock, Filter, Panel Stops
Does Not Contain LED
-
Down
Phosphor Bronze
Gold
GSTJ6AU-IV
HellermannTyton

MODULAR KEYSTONE JACK, IVORY

  • Connector Type: Jack
  • Number of Positions/Contacts: 8p8c (RJ45, Ethernet)
  • Number of Ports: 1
  • Number of Rows: 1
  • Mounting Type: Free Hanging (In-Line)
  • Orientation: Straight
  • Termination: Crimp
  • Shielding: Unshielded
  • Ratings: Cat6a
  • Features: Strain Relief
  • LED Color: Does Not Contain LED
  • Ingress Protection: -
  • Tab Direction: Down
  • Contact Material: -
  • Contact Finish: -
패키지: -
재고2,754
8p8c (RJ45, Ethernet)
1
1
Free Hanging (In-Line)
Straight
Crimp
Unshielded
Cat6a
Strain Relief
Does Not Contain LED
-
Down
-
-
RJHSEJ38708
Amphenol Commercial Products

CONN MOD JACK 8P8C R/A SHLD

  • Connector Type: Jack
  • Number of Positions/Contacts: 8p8c (RJ45, Ethernet)
  • Number of Ports: 8
  • Number of Rows: 1
  • Mounting Type: Through Hole
  • Orientation: 90° Angle (Right)
  • Termination: Solder
  • Shielding: Shielded, EMI Finger
  • Ratings: -
  • Features: Board Lock
  • LED Color: Red - Green
  • Ingress Protection: -
  • Tab Direction: Up
  • Contact Material: Phosphor Bronze
  • Contact Finish: Gold
패키지: -
재고4,338
8p8c (RJ45, Ethernet)
8
1
Through Hole
90° Angle (Right)
Solder
Shielded, EMI Finger
-
Board Lock
Red - Green
-
Up
Phosphor Bronze
Gold
5569350-1
TE Connectivity AMP Connectors

CONN MOD JACK 8P8C R/A UNSHLD

  • Connector Type: Jack
  • Number of Positions/Contacts: 8p8c (RJ45, Ethernet)
  • Number of Ports: 3
  • Number of Rows: 1
  • Mounting Type: Through Hole
  • Orientation: 90° Angle (Right)
  • Termination: Solder
  • Shielding: Unshielded
  • Ratings: Cat5
  • Features: Board Guide
  • LED Color: Does Not Contain LED
  • Ingress Protection: -
  • Tab Direction: Down
  • Contact Material: Phosphor Bronze
  • Contact Finish: Gold
패키지: -
재고7,596
8p8c (RJ45, Ethernet)
3
1
Through Hole
90° Angle (Right)
Solder
Unshielded
Cat5
Board Guide
Does Not Contain LED
-
Down
Phosphor Bronze
Gold
RJE724881471
Amphenol Commercial Products

CONN MOD JACK 8P8C R/A SHLD

  • Connector Type: Jack
  • Number of Positions/Contacts: 8p8c (RJ45, Ethernet)
  • Number of Ports: 4
  • Number of Rows: 1
  • Mounting Type: Board Edge; Panel Mount; Through Hole
  • Orientation: 90° Angle (Right)
  • Termination: Solder
  • Shielding: Shielded, EMI Finger
  • Ratings: Cat5e
  • Features: -
  • LED Color: Red - Green
  • Ingress Protection: -
  • Tab Direction: Up
  • Contact Material: Phosphor Bronze
  • Contact Finish: Gold
패키지: -
재고2,934
8p8c (RJ45, Ethernet)
4
1
Board Edge; Panel Mount; Through Hole
90° Angle (Right)
Solder
Shielded, EMI Finger
Cat5e
-
Red - Green
-
Up
Phosphor Bronze
Gold
RJE724881282
Amphenol Commercial Products

CONN MOD JACK 8P8C R/A SHLD

  • Connector Type: Jack
  • Number of Positions/Contacts: 8p8c (RJ45, Ethernet)
  • Number of Ports: 4
  • Number of Rows: 1
  • Mounting Type: Board Edge; Panel Mount; Through Hole
  • Orientation: 90° Angle (Right)
  • Termination: Solder
  • Shielding: Shielded, EMI Finger
  • Ratings: Cat5e
  • Features: -
  • LED Color: Green - Red
  • Ingress Protection: -
  • Tab Direction: Up
  • Contact Material: Phosphor Bronze
  • Contact Finish: Gold
패키지: -
재고5,148
8p8c (RJ45, Ethernet)
4
1
Board Edge; Panel Mount; Through Hole
90° Angle (Right)
Solder
Shielded, EMI Finger
Cat5e
-
Green - Red
-
Up
Phosphor Bronze
Gold
RJSBE5385C4
Amphenol Commercial Products

CONN MOD JACK 8P8C R/A SHLD

  • Connector Type: Jack
  • Number of Positions/Contacts: 8p8c (RJ45, Ethernet)
  • Number of Ports: 4
  • Number of Rows: 1
  • Mounting Type: Through Hole
  • Orientation: 90° Angle (Right)
  • Termination: Solder
  • Shielding: Shielded, EMI Finger
  • Ratings: -
  • Features: Board Lock
  • LED Color: Green - Green
  • Ingress Protection: -
  • Tab Direction: Down
  • Contact Material: Phosphor Bronze
  • Contact Finish: Gold
패키지: -
재고3,384
8p8c (RJ45, Ethernet)
4
1
Through Hole
90° Angle (Right)
Solder
Shielded, EMI Finger
-
Board Lock
Green - Green
-
Down
Phosphor Bronze
Gold
RJSBE5087C4
Amphenol Commercial Products

CONN MOD JACK 8P8C R/A UNSHLD

  • Connector Type: Jack
  • Number of Positions/Contacts: 8p8c (RJ45, Ethernet)
  • Number of Ports: 4
  • Number of Rows: 1
  • Mounting Type: Through Hole
  • Orientation: 90° Angle (Right)
  • Termination: Solder
  • Shielding: Unshielded
  • Ratings: -
  • Features: Board Lock
  • LED Color: Red - Green
  • Ingress Protection: -
  • Tab Direction: Down
  • Contact Material: Phosphor Bronze
  • Contact Finish: Gold
패키지: -
재고2,520
8p8c (RJ45, Ethernet)
4
1
Through Hole
90° Angle (Right)
Solder
Unshielded
-
Board Lock
Red - Green
-
Down
Phosphor Bronze
Gold
RJHSE706M04
Amphenol Commercial Products

CONN MOD JACK 6P6C R/A UNSHLD

  • Connector Type: Jack
  • Number of Positions/Contacts: 6p6c (RJ11, RJ12, RJ14, RJ25)
  • Number of Ports: 4
  • Number of Rows: 1
  • Mounting Type: Through Hole
  • Orientation: 90° Angle (Right)
  • Termination: Solder
  • Shielding: Unshielded
  • Ratings: -
  • Features: Board Lock
  • LED Color: Red - Yellow
  • Ingress Protection: -
  • Tab Direction: Up
  • Contact Material: Phosphor Bronze
  • Contact Finish: Gold
패키지: -
재고7,236
6p6c (RJ11, RJ12, RJ14, RJ25)
4
1
Through Hole
90° Angle (Right)
Solder
Unshielded
-
Board Lock
Red - Yellow
-
Up
Phosphor Bronze
Gold
RJHSEJ08404
Amphenol Commercial Products

CONN MOD JACK 8P8C R/A UNSHLD

  • Connector Type: Jack
  • Number of Positions/Contacts: 8p8c (RJ45, Ethernet)
  • Number of Ports: 4
  • Number of Rows: 1
  • Mounting Type: Through Hole
  • Orientation: 90° Angle (Right)
  • Termination: Solder
  • Shielding: Unshielded
  • Ratings: -
  • Features: Board Lock
  • LED Color: Green - Yellow
  • Ingress Protection: -
  • Tab Direction: Up
  • Contact Material: Phosphor Bronze
  • Contact Finish: Gold
패키지: -
재고7,146
8p8c (RJ45, Ethernet)
4
1
Through Hole
90° Angle (Right)
Solder
Unshielded
-
Board Lock
Green - Yellow
-
Up
Phosphor Bronze
Gold
RJE7118813F1
Amphenol Commercial Products

CONN MOD JACK 8P8C R/A SHIELDED

  • Connector Type: Jack
  • Number of Positions/Contacts: 8p8c (RJ45, Ethernet)
  • Number of Ports: 1
  • Number of Rows: 1
  • Mounting Type: Board Edge; Panel Mount; Through Hole
  • Orientation: 90° Angle (Right)
  • Termination: Solder
  • Shielding: Shielded, EMI Finger
  • Ratings: Cat6
  • Features: -
  • LED Color: Green, Yellow - Yellow
  • Ingress Protection: -
  • Tab Direction: Up
  • Contact Material: Phosphor Bronze
  • Contact Finish: Gold
패키지: -
재고8,136
8p8c (RJ45, Ethernet)
1
1
Board Edge; Panel Mount; Through Hole
90° Angle (Right)
Solder
Shielded, EMI Finger
Cat6
-
Green, Yellow - Yellow
-
Up
Phosphor Bronze
Gold
SS-71800-117
Stewart Connector

CONN MOD JACK 8P8C R/A SHIELDED

  • Connector Type: Jack
  • Number of Positions/Contacts: 8p8c (RJ45, Ethernet)
  • Number of Ports: -
  • Number of Rows: -
  • Mounting Type: Through Hole
  • Orientation: 90° Angle (Right)
  • Termination: Solder
  • Shielding: Shielded
  • Ratings: -
  • Features: Board Guide
  • LED Color: -
  • Ingress Protection: -
  • Tab Direction: -
  • Contact Material: -
  • Contact Finish: -
패키지: -
재고5,454
8p8c (RJ45, Ethernet)
-
-
Through Hole
90° Angle (Right)
Solder
Shielded
-
Board Guide
-
-
-
-
-
RJSBE5282C1
Amphenol Commercial Products

CONN MOD JACK 8P8C R/A SHLD

  • Connector Type: Jack
  • Number of Positions/Contacts: 8p8c (RJ45, Ethernet)
  • Number of Ports: 1
  • Number of Rows: 1
  • Mounting Type: Through Hole
  • Orientation: 90° Angle (Right)
  • Termination: Solder
  • Shielding: Unshielded
  • Ratings: -
  • Features: Board Lock
  • LED Color: Green
  • Ingress Protection: -
  • Tab Direction: Down
  • Contact Material: Phosphor Bronze
  • Contact Finish: Gold
패키지: -
재고6,354
8p8c (RJ45, Ethernet)
1
1
Through Hole
90° Angle (Right)
Solder
Unshielded
-
Board Lock
Green
-
Down
Phosphor Bronze
Gold
RJSBE5280C1
Amphenol Commercial Products

CONN MOD JACK 8P8C R/A SHLD

  • Connector Type: Jack
  • Number of Positions/Contacts: 8p8c (RJ45, Ethernet)
  • Number of Ports: 1
  • Number of Rows: 1
  • Mounting Type: Through Hole
  • Orientation: 90° Angle (Right)
  • Termination: Solder
  • Shielding: Shielded
  • Ratings: -
  • Features: Board Lock
  • LED Color: Does Not Contain LED
  • Ingress Protection: -
  • Tab Direction: Down
  • Contact Material: Phosphor Bronze
  • Contact Finish: Gold
패키지: -
재고2,178
8p8c (RJ45, Ethernet)
1
1
Through Hole
90° Angle (Right)
Solder
Shielded
-
Board Lock
Does Not Contain LED
-
Down
Phosphor Bronze
Gold
RJHSE5F8D
Amphenol Commercial Products

CONN MOD JACK 8P8C R/A SHLD

  • Connector Type: Jack
  • Number of Positions/Contacts: 8p8c (RJ45, Ethernet)
  • Number of Ports: 1
  • Number of Rows: 1
  • Mounting Type: Through Hole
  • Orientation: 90° Angle (Right)
  • Termination: Solder
  • Shielding: Shielded
  • Ratings: -
  • Features: Board Lock
  • LED Color: Green - Green, Yellow
  • Ingress Protection: -
  • Tab Direction: Up
  • Contact Material: Phosphor Bronze
  • Contact Finish: Gold
패키지: -
재고4,644
8p8c (RJ45, Ethernet)
1
1
Through Hole
90° Angle (Right)
Solder
Shielded
-
Board Lock
Green - Green, Yellow
-
Up
Phosphor Bronze
Gold
RJSBE538DC1
Amphenol Commercial Products

CONN MOD JACK 8P8C R/A SHLD

  • Connector Type: Jack
  • Number of Positions/Contacts: 8p8c (RJ45, Ethernet)
  • Number of Ports: 1
  • Number of Rows: 1
  • Mounting Type: Through Hole
  • Orientation: 90° Angle (Right)
  • Termination: Solder
  • Shielding: Shielded, EMI Finger
  • Ratings: -
  • Features: Board Lock
  • LED Color: Green - Green, Yellow
  • Ingress Protection: -
  • Tab Direction: Down
  • Contact Material: Phosphor Bronze
  • Contact Finish: Gold
패키지: -
재고4,536
8p8c (RJ45, Ethernet)
1
1
Through Hole
90° Angle (Right)
Solder
Shielded, EMI Finger
-
Board Lock
Green - Green, Yellow
-
Down
Phosphor Bronze
Gold
RJHSE508K02
Amphenol Commercial Products

CONN MOD JACK 8P8C R/A UNSHLD

  • Connector Type: Jack
  • Number of Positions/Contacts: 8p8c (RJ45, Ethernet)
  • Number of Ports: 2
  • Number of Rows: 1
  • Mounting Type: Through Hole
  • Orientation: 90° Angle (Right)
  • Termination: Solder
  • Shielding: Unshielded
  • Ratings: -
  • Features: Board Lock
  • LED Color: Yellow - Green, Orange
  • Ingress Protection: -
  • Tab Direction: Up
  • Contact Material: Phosphor Bronze
  • Contact Finish: Gold
패키지: -
재고4,968
8p8c (RJ45, Ethernet)
2
1
Through Hole
90° Angle (Right)
Solder
Unshielded
-
Board Lock
Yellow - Green, Orange
-
Up
Phosphor Bronze
Gold
A-2014-1-2-N-T
Assmann WSW Components

CONN MOD JACK 6P6C VERT UNSHLD

  • Connector Type: Jack
  • Number of Positions/Contacts: 6p6c (RJ11, RJ12, RJ14, RJ25)
  • Number of Ports: 1
  • Number of Rows: 1
  • Mounting Type: Through Hole
  • Orientation: Vertical
  • Termination: Solder
  • Shielding: Unshielded
  • Ratings: -
  • Features: Board Lock
  • LED Color: Does Not Contain LED
  • Ingress Protection: -
  • Tab Direction: User Selectable
  • Contact Material: Phosphor Bronze
  • Contact Finish: Gold
패키지: -
재고6,138
6p6c (RJ11, RJ12, RJ14, RJ25)
1
1
Through Hole
Vertical
Solder
Unshielded
-
Board Lock
Does Not Contain LED
-
User Selectable
Phosphor Bronze
Gold
RJHSE5082A1
Amphenol Commercial Products

CONN MOD JACK 8P8C R/A UNSHLD

  • Connector Type: Jack
  • Number of Positions/Contacts: 8p8c (RJ45, Ethernet)
  • Number of Ports: 1
  • Number of Rows: 1
  • Mounting Type: Through Hole
  • Orientation: 90° Angle (Right)
  • Termination: Solder
  • Shielding: Unshielded
  • Ratings: -
  • Features: Board Lock
  • LED Color: Green
  • Ingress Protection: -
  • Tab Direction: Up
  • Contact Material: Phosphor Bronze
  • Contact Finish: Gold
패키지: -
재고3,168
8p8c (RJ45, Ethernet)
1
1
Through Hole
90° Angle (Right)
Solder
Unshielded
-
Board Lock
Green
-
Up
Phosphor Bronze
Gold
RJHSEG081A1
Amphenol Commercial Products

CONN MOD JACK 8P8C UNSHLD

  • Connector Type: Jack
  • Number of Positions/Contacts: 8p8c (RJ45, Ethernet)
  • Number of Ports: 1
  • Number of Rows: -
  • Mounting Type: -
  • Orientation: -
  • Termination: -
  • Shielding: Unshielded
  • Ratings: -
  • Features: -
  • LED Color: Yellow - Green
  • Ingress Protection: -
  • Tab Direction: -
  • Contact Material: Phosphor Bronze
  • Contact Finish: Gold
패키지: -
재고6,336
8p8c (RJ45, Ethernet)
1
-
-
-
-
Unshielded
-
-
Yellow - Green
-
-
Phosphor Bronze
Gold
90519-002
Amphenol FCI

CONN MOD JACK 4P4C VERT UNSHLD

  • Connector Type: Jack
  • Number of Positions/Contacts: 4p4c (RJ9, RJ10, RJ22)
  • Number of Ports: 1
  • Number of Rows: 1
  • Mounting Type: Through Hole
  • Orientation: Vertical
  • Termination: Solder
  • Shielding: Unshielded
  • Ratings: Cat3
  • Features: Board Guide, Panel Stops
  • LED Color: Does Not Contain LED
  • Ingress Protection: -
  • Tab Direction: User Selectable
  • Contact Material: Copper Alloy
  • Contact Finish: Gold
패키지: -
재고2,142
4p4c (RJ9, RJ10, RJ22)
1
1
Through Hole
Vertical
Solder
Unshielded
Cat3
Board Guide, Panel Stops
Does Not Contain LED
-
User Selectable
Copper Alloy
Gold
43860-0015
Molex Connector Corporation

CONN MOD JACK 6P4C R/A SHIELDED

  • Connector Type: Jack
  • Number of Positions/Contacts: 6p4c (RJ11, RJ14)
  • Number of Ports: 1
  • Number of Rows: 1
  • Mounting Type: Through Hole
  • Orientation: 90° Angle (Right)
  • Termination: Solder
  • Shielding: Shielded, EMI Finger
  • Ratings: Cat3
  • Features: Board Lock
  • LED Color: Does Not Contain LED
  • Ingress Protection: -
  • Tab Direction: Up
  • Contact Material: Phosphor Bronze
  • Contact Finish: Gold
패키지: -
재고2,100
6p4c (RJ11, RJ14)
1
1
Through Hole
90° Angle (Right)
Solder
Shielded, EMI Finger
Cat3
Board Lock
Does Not Contain LED
-
Up
Phosphor Bronze
Gold
5557564-1
TE Connectivity AMP Connectors

CONN MOD JACK 8P8C R/A UNSHLD

  • Connector Type: Jack
  • Number of Positions/Contacts: 8p8c (RJ45, Ethernet)
  • Number of Ports: 6
  • Number of Rows: 1
  • Mounting Type: Through Hole
  • Orientation: 90° Angle (Right)
  • Termination: Solder
  • Shielding: Unshielded
  • Ratings: Cat4
  • Features: Board Guide
  • LED Color: Does Not Contain LED
  • Ingress Protection: -
  • Tab Direction: Down
  • Contact Material: Phosphor Bronze
  • Contact Finish: Gold
패키지: -
재고7,434
8p8c (RJ45, Ethernet)
6
1
Through Hole
90° Angle (Right)
Solder
Unshielded
Cat4
Board Guide
Does Not Contain LED
-
Down
Phosphor Bronze
Gold
5555003-1
TE Connectivity AMP Connectors

CONN MOD JACK 6P6C R/A UNSHLD

  • Connector Type: Jack
  • Number of Positions/Contacts: 6p6c (RJ11, RJ12, RJ14, RJ25)
  • Number of Ports: 1
  • Number of Rows: 1
  • Mounting Type: Through Hole
  • Orientation: 90° Angle (Right)
  • Termination: Solder
  • Shielding: Unshielded
  • Ratings: Cat3
  • Features: Board Lock, Offset Latch, Panel Stops
  • LED Color: Does Not Contain LED
  • Ingress Protection: -
  • Tab Direction: Down
  • Contact Material: Phosphor Bronze
  • Contact Finish: Gold
패키지: -
재고24,198
6p6c (RJ11, RJ12, RJ14, RJ25)
1
1
Through Hole
90° Angle (Right)
Solder
Unshielded
Cat3
Board Lock, Offset Latch, Panel Stops
Does Not Contain LED
-
Down
Phosphor Bronze
Gold
5557572-3
TE Connectivity AMP Connectors

CONN MOD JACK 8P8C R/A SHIELDED

  • Connector Type: Jack
  • Number of Positions/Contacts: 8p8c (RJ45, Ethernet)
  • Number of Ports: 6
  • Number of Rows: 1
  • Mounting Type: Through Hole
  • Orientation: 90° Angle (Right)
  • Termination: Solder
  • Shielding: Shielded
  • Ratings: Cat4
  • Features: Board Guide
  • LED Color: Does Not Contain LED
  • Ingress Protection: -
  • Tab Direction: Down
  • Contact Material: Phosphor Bronze
  • Contact Finish: Gold
패키지: -
재고19,500
8p8c (RJ45, Ethernet)
6
1
Through Hole
90° Angle (Right)
Solder
Shielded
Cat4
Board Guide
Does Not Contain LED
-
Down
Phosphor Bronze
Gold