페이지 245 - 모듈식 커넥터 - 잭 | 커넥터, 상호 연결 | Heisener Electronics
고객 문의
SalesDept@heisener.com 86-755-83210559 x831
Language Translation

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

모듈식 커넥터 - 잭

기록 9,949
페이지  245/356
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
SS-65100-032F
Stewart Connector

CONN MOD JACK

  • Connector Type: Jack
  • Number of Positions/Contacts: 10p10c (RJ50)
  • Number of Ports: 1
  • Number of Rows: 1
  • Mounting Type: Through Hole
  • Orientation: Vertical
  • Termination: Solder
  • Shielding: Unshielded
  • Ratings: -
  • Features: Board Guide
  • LED Color: -
  • Ingress Protection: -
  • Tab Direction: User Selectable
  • Contact Material: Copper Alloy
  • Contact Finish: Gold
패키지: -
재고5,634
10p10c (RJ50)
1
1
Through Hole
Vertical
Solder
Unshielded
-
Board Guide
-
-
User Selectable
Copper Alloy
Gold
SS-73100-034
Stewart Connector

CONN MOD JACK 8P8C R/A SHIELDED

  • Connector Type: Jack
  • Number of Positions/Contacts: 8p8c (RJ45, Ethernet)
  • Number of Ports: 16
  • Number of Rows: 2
  • Mounting Type: Through Hole
  • Orientation: 90° Angle (Right)
  • Termination: Solder
  • Shielding: Shielded, EMI Finger
  • Ratings: Cat5e
  • Features: Board Guide
  • LED Color: Does Not Contain LED
  • Ingress Protection: -
  • Tab Direction: Up and Down
  • Contact Material: Copper Alloy
  • Contact Finish: Gold
패키지: -
재고5,418
8p8c (RJ45, Ethernet)
16
2
Through Hole
90° Angle (Right)
Solder
Shielded, EMI Finger
Cat5e
Board Guide
Does Not Contain LED
-
Up and Down
Copper Alloy
Gold
SS-651010S-A-FLS
Stewart Connector

CONN MOD JACK 10P10C VERT SHLD

  • Connector Type: Jack
  • Number of Positions/Contacts: 10p10c (RJ50)
  • Number of Ports: 1
  • Number of Rows: 1
  • Mounting Type: Through Hole
  • Orientation: Vertical
  • Termination: Solder
  • Shielding: Shielded
  • Ratings: -
  • Features: Board Lock, Panel Stops
  • LED Color: Does Not Contain LED
  • Ingress Protection: -
  • Tab Direction: User Selectable
  • Contact Material: Copper Alloy
  • Contact Finish: Gold
패키지: -
재고6,714
10p10c (RJ50)
1
1
Through Hole
Vertical
Solder
Shielded
-
Board Lock, Panel Stops
Does Not Contain LED
-
User Selectable
Copper Alloy
Gold
SS64400-002G
Stewart Connector

CONN MOD JACK 4P4C R/A 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: 90° Angle (Right)
  • Termination: Solder
  • Shielding: Unshielded
  • Ratings: -
  • Features: Board Lock, EPP918A
  • LED Color: Does Not Contain LED
  • Ingress Protection: -
  • Tab Direction: Down
  • Contact Material: Copper Alloy
  • Contact Finish: Gold
패키지: -
재고5,472
4p4c (RJ9, RJ10, RJ22)
1
1
Through Hole
90° Angle (Right)
Solder
Unshielded
-
Board Lock, EPP918A
Does Not Contain LED
-
Down
Copper Alloy
Gold
VOL-OCK6-U-BK
3M

RJ45 CAT.6 UTP JACK BLK

  • Connector Type: Jack
  • Number of Positions/Contacts: 8p8c (RJ45, Ethernet)
  • Number of Ports: -
  • Number of Rows: -
  • Mounting Type: -
  • Orientation: -
  • Termination: -
  • Shielding: -
  • Ratings: Cat6
  • Features: -
  • LED Color: -
  • Ingress Protection: -
  • Tab Direction: -
  • Contact Material: -
  • Contact Finish: -
패키지: -
재고6,030
8p8c (RJ45, Ethernet)
-
-
-
-
-
-
Cat6
-
-
-
-
-
-
RJHSEJ38408
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: Green - Yellow
  • Ingress Protection: -
  • Tab Direction: Up
  • Contact Material: Phosphor Bronze
  • Contact Finish: Gold
패키지: -
재고5,742
8p8c (RJ45, Ethernet)
8
1
Through Hole
90° Angle (Right)
Solder
Shielded, EMI Finger
-
Board Lock
Green - Yellow
-
Up
Phosphor Bronze
Gold
RJHSEG381A8
Amphenol Commercial Products

CONN MOD JACK 8P8C SHLD

  • Connector Type: Jack
  • Number of Positions/Contacts: 8p8c (RJ45, Ethernet)
  • Number of Ports: 8
  • Number of Rows: -
  • Mounting Type: -
  • Orientation: -
  • Termination: -
  • Shielding: Shielded
  • Ratings: -
  • Features: -
  • LED Color: Yellow - Green
  • Ingress Protection: -
  • Tab Direction: -
  • Contact Material: Phosphor Bronze
  • Contact Finish: Gold
패키지: -
재고6,120
8p8c (RJ45, Ethernet)
8
-
-
-
-
Shielded
-
-
Yellow - Green
-
-
Phosphor Bronze
Gold
RJSNE5F8FA8
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: 2
  • Mounting Type: Through Hole
  • Orientation: 90° Angle (Right)
  • Termination: Solder
  • Shielding: Shielded
  • Ratings: -
  • Features: Board Lock
  • LED Color: Green, Yellow - Yellow
  • Ingress Protection: -
  • Tab Direction: Up and Down
  • Contact Material: Phosphor Bronze
  • Contact Finish: Gold
패키지: -
재고6,228
8p8c (RJ45, Ethernet)
8
2
Through Hole
90° Angle (Right)
Solder
Shielded
-
Board Lock
Green, Yellow - Yellow
-
Up and Down
Phosphor Bronze
Gold
RJE7248811R2
Amphenol Commercial Products

CONN MOD JACK 8P8C R/A SHIELDED

  • 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, Orange - Green
  • Ingress Protection: -
  • Tab Direction: Up
  • Contact Material: Phosphor Bronze
  • Contact Finish: Gold
패키지: -
재고4,680
8p8c (RJ45, Ethernet)
4
1
Board Edge; Panel Mount; Through Hole
90° Angle (Right)
Solder
Shielded, EMI Finger
Cat5e
-
Green, Orange - Green
-
Up
Phosphor Bronze
Gold
RJE724881473
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: -
재고4,284
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
1116132-5
TE Connectivity AMP Connectors

CONN MOD JACK 8P8C R/A SHIELDED

  • 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: Shielded, EMI Finger
  • Ratings: Cat5
  • Features: Board Guide
  • LED Color: Green - Green
  • Ingress Protection: -
  • Tab Direction: Up
  • Contact Material: Phosphor Bronze
  • Contact Finish: Gold
패키지: -
재고3,006
8p8c (RJ45, Ethernet)
3
1
Through Hole
90° Angle (Right)
Solder
Shielded, EMI Finger
Cat5
Board Guide
Green - Green
-
Up
Phosphor Bronze
Gold
RJSBE5380C4
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: Does Not Contain LED
  • Ingress Protection: -
  • Tab Direction: Down
  • Contact Material: Phosphor Bronze
  • Contact Finish: Gold
패키지: -
재고5,904
8p8c (RJ45, Ethernet)
4
1
Through Hole
90° Angle (Right)
Solder
Shielded, EMI Finger
-
Board Lock
Does Not Contain LED
-
Down
Phosphor Bronze
Gold
2-1734719-3
TE Connectivity AMP Connectors

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 Guide
  • LED Color: Green - Yellow
  • Ingress Protection: -
  • Tab Direction: Up
  • Contact Material: Phosphor Bronze
  • Contact Finish: Gold
패키지: -
재고5,148
8p8c (RJ45, Ethernet)
1
1
Through Hole
90° Angle (Right)
Solder
Shielded, EMI Finger
-
Board Guide
Green - Yellow
-
Up
Phosphor Bronze
Gold
RJE01G4202
Amphenol Commercial Products

CONN MOD JACK 6P4C R/A SHLD

  • Connector Type: Jack
  • Number of Positions/Contacts: 6p4c (RJ11, RJ14)
  • Number of Ports: 2
  • Number of Rows: 1
  • Mounting Type: Through Hole
  • Orientation: 90° Angle (Right)
  • Termination: Solder
  • Shielding: Shielded, EMI Finger
  • Ratings: -
  • Features: Board Lock
  • LED Color: Does Not Contain LED
  • Ingress Protection: -
  • Tab Direction: Up
  • Contact Material: Phosphor Bronze
  • Contact Finish: Gold
패키지: -
재고2,754
6p4c (RJ11, RJ14)
2
1
Through Hole
90° Angle (Right)
Solder
Shielded, EMI Finger
-
Board Lock
Does Not Contain LED
-
Up
Phosphor Bronze
Gold
RJHSEJ08902
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: Green
  • Ingress Protection: -
  • Tab Direction: Up
  • Contact Material: Phosphor Bronze
  • Contact Finish: Gold
패키지: -
재고7,020
8p8c (RJ45, Ethernet)
2
1
Through Hole
90° Angle (Right)
Solder
Unshielded
-
Board Lock
Green
-
Up
Phosphor Bronze
Gold
RJHSE3P8P
Amphenol Commercial Products

CONN MOD JACK 8P8C VERT SHLD

  • Connector Type: Jack
  • Number of Positions/Contacts: 8p8c (RJ45, Ethernet)
  • Number of Ports: 1
  • Number of Rows: 1
  • Mounting Type: Through Hole
  • Orientation: Vertical
  • Termination: Solder
  • Shielding: Shielded
  • Ratings: -
  • Features: Board Lock, Panel Stops
  • LED Color: Green - Red, Green
  • Ingress Protection: -
  • Tab Direction: User Selectable
  • Contact Material: Phosphor Bronze
  • Contact Finish: Gold
패키지: -
재고3,312
8p8c (RJ45, Ethernet)
1
1
Through Hole
Vertical
Solder
Shielded
-
Board Lock, Panel Stops
Green - Red, Green
-
User Selectable
Phosphor Bronze
Gold
RJHSEJ48G
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, Orange - Green, Orange
  • Ingress Protection: -
  • Tab Direction: Up
  • Contact Material: Phosphor Bronze
  • Contact Finish: Gold
패키지: -
재고6,156
8p8c (RJ45, Ethernet)
1
1
Through Hole
90° Angle (Right)
Solder
Shielded, EMI Finger
-
Board Lock
Green, Orange - Green, Orange
-
Up
Phosphor Bronze
Gold
RJHSE736N
Amphenol Commercial Products

CONN MOD JACK 6P6C R/A SHLD

  • 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: Shielded, EMI Finger
  • Ratings: -
  • Features: Board Lock
  • LED Color: -
  • Ingress Protection: -
  • Tab Direction: Up
  • Contact Material: Phosphor Bronze
  • Contact Finish: Gold
패키지: -
재고8,604
6p6c (RJ11, RJ12, RJ14, RJ25)
1
1
Through Hole
90° Angle (Right)
Solder
Shielded, EMI Finger
-
Board Lock
-
-
Up
Phosphor Bronze
Gold
87545-4211CLF
Amphenol FCI

CONN MOD JACK 6P6C

  • Connector Type: Jack
  • Number of Positions/Contacts: 6p4c (RJ11, RJ14)
  • Number of Ports: 1
  • Number of Rows: 1
  • Mounting Type: Surface Mount
  • Orientation: Vertical
  • Termination: Solder
  • Shielding: Unshielded
  • Ratings: Cat3
  • Features: Board Guide, Panel Stops, Solder Retention
  • LED Color: Does Not Contain LED
  • Ingress Protection: -
  • Tab Direction: User Selectable
  • Contact Material: Phosphor Bronze
  • Contact Finish: Gold
패키지: -
재고3,852
6p4c (RJ11, RJ14)
1
1
Surface Mount
Vertical
Solder
Unshielded
Cat3
Board Guide, Panel Stops, Solder Retention
Does Not Contain LED
-
User Selectable
Phosphor Bronze
Gold
RJHSEEE8P
Amphenol Commercial Products

CONN MOD JACK 8P8C SHLD

  • Connector Type: Jack
  • Number of Positions/Contacts: 8p8c (RJ45, Ethernet)
  • Number of Ports: -
  • Number of Rows: -
  • Mounting Type: -
  • Orientation: -
  • Termination: -
  • Shielding: Shielded
  • Ratings: -
  • Features: -
  • LED Color: Green - Red, Green
  • Ingress Protection: -
  • Tab Direction: -
  • Contact Material: Phosphor Bronze
  • Contact Finish: Gold
패키지: -
재고6,534
8p8c (RJ45, Ethernet)
-
-
-
-
-
Shielded
-
-
Green - Red, Green
-
-
Phosphor Bronze
Gold
RJE01J4501
Amphenol Commercial Products

CONN MOD JACK 6P4C R/A SHLD

  • 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
  • Ratings: -
  • Features: Board Lock
  • LED Color: Does Not Contain LED
  • Ingress Protection: -
  • Tab Direction: Up
  • Contact Material: Phosphor Bronze
  • Contact Finish: Gold
패키지: -
재고5,598
6p4c (RJ11, RJ14)
1
1
Through Hole
90° Angle (Right)
Solder
Shielded
-
Board Lock
Does Not Contain LED
-
Up
Phosphor Bronze
Gold
RJE561880310
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: Press-Fit
  • Shielding: Unshielded
  • Ratings: -
  • Features: Board Lock
  • LED Color: Does Not Contain LED
  • Ingress Protection: -
  • Tab Direction: Down
  • Contact Material: Phosphor Bronze
  • Contact Finish: Gold
패키지: -
재고4,140
8p8c (RJ45, Ethernet)
1
1
Through Hole
90° Angle (Right)
Press-Fit
Unshielded
-
Board Lock
Does Not Contain LED
-
Down
Phosphor Bronze
Gold
0955012601
Molex, LLC

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: Cat3
  • Features: Board Lock
  • LED Color: Does Not Contain LED
  • Ingress Protection: -
  • Tab Direction: Down
  • Contact Material: Copper Alloy
  • Contact Finish: Gold
패키지: -
재고3,132
6p4c (RJ11, RJ14)
1
1
Through Hole
90° Angle (Right)
Solder
Unshielded
Cat3
Board Lock
Does Not Contain LED
-
Down
Copper Alloy
Gold
87543-1111LF
Amphenol FCI

CONN MOD JACK 4P4C

  • Connector Type: Jack
  • Number of Positions/Contacts: 4p4c (RJ9, RJ10, RJ22)
  • Number of Ports: 1
  • Number of Rows: 1
  • Mounting Type: Surface Mount
  • Orientation: Vertical
  • Termination: Solder
  • Shielding: Unshielded
  • Ratings: Cat3
  • Features: Board Guide, Panel Stops, Solder Retention
  • LED Color: Does Not Contain LED
  • Ingress Protection: -
  • Tab Direction: User Selectable
  • Contact Material: Phosphor Bronze
  • Contact Finish: Gold
패키지: -
재고5,400
4p4c (RJ9, RJ10, RJ22)
1
1
Surface Mount
Vertical
Solder
Unshielded
Cat3
Board Guide, Panel Stops, Solder Retention
Does Not Contain LED
-
User Selectable
Phosphor Bronze
Gold
KIT40792
Amphenol PCD

CONN MOD JACK 8P8C SHIELDED

  • Connector Type: Jack
  • Number of Positions/Contacts: 8p8c (RJ45, Ethernet)
  • Number of Ports: 1
  • Number of Rows: 1
  • Mounting Type: Panel Mount, Bulkhead
  • Orientation: 90° Angle (Right)
  • Termination: Solder
  • Shielding: Shielded
  • Ratings: -
  • Features: Circular Threaded Coupling, Heat Shrink Tubing
  • LED Color: Does Not Contain LED
  • Ingress Protection: -
  • Tab Direction: User Selectable
  • Contact Material: -
  • Contact Finish: -
패키지: -
재고5,850
8p8c (RJ45, Ethernet)
1
1
Panel Mount, Bulkhead
90° Angle (Right)
Solder
Shielded
-
Circular Threaded Coupling, Heat Shrink Tubing
Does Not Contain LED
-
User Selectable
-
-
RJ45-8Z3
TE Connectivity Corcom Filters

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: Through Hole
  • Orientation: 90° Angle (Right)
  • Termination: Solder
  • Shielding: Shielded
  • Ratings: -
  • Features: Board Lock, Panel Stops
  • LED Color: Does Not Contain LED
  • Ingress Protection: -
  • Tab Direction: Down
  • Contact Material: Phosphor Bronze
  • Contact Finish: Gold
패키지: -
재고13,284
8p8c (RJ45, Ethernet)
1
1
Through Hole
90° Angle (Right)
Solder
Shielded
-
Board Lock, Panel Stops
Does Not Contain LED
-
Down
Phosphor Bronze
Gold
A00-108-660-450
EDAC Inc.

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: Cat5
  • Features: Board Lock
  • LED Color: Does Not Contain LED
  • Ingress Protection: -
  • Tab Direction: Down
  • Contact Material: Phosphor Bronze
  • Contact Finish: Gold
패키지: -
재고17,766
8p8c (RJ45, Ethernet)
1
1
Through Hole
90° Angle (Right)
Solder
Unshielded
Cat5
Board Lock
Does Not Contain LED
-
Down
Phosphor Bronze
Gold
5555164-1
TE Connectivity AMP Connectors

CONN MOD JACK 8P8C R/A UNSHLD

  • Connector Type: Jack
  • Number of Positions/Contacts: 8p8c (RJ45, Ethernet)
  • Number of Ports: 1
  • Number of Rows: 1
  • Mounting Type: Through Hole
  • Orientation: 90° Angle (Right)
  • Termination: Solder
  • Shielding: Unshielded
  • Ratings: Cat3
  • Features: Board Lock
  • LED Color: Does Not Contain LED
  • Ingress Protection: -
  • Tab Direction: Down
  • Contact Material: Phosphor Bronze
  • Contact Finish: Gold
패키지: -
재고92,904
8p8c (RJ45, Ethernet)
1
1
Through Hole
90° Angle (Right)
Solder
Unshielded
Cat3
Board Lock
Does Not Contain LED
-
Down
Phosphor Bronze
Gold