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Connectors / Headers and Edge Type Connectors / 51021-0400
Datasheets
51021-0400 by: Molex

Board Connector, 4 Contact(s), 1 Row(s), Female, Straight, 0.049 inch Pitch, Crimp Terminal, Locking, Receptacle,

Part Details for 51021-0400 by Molex

Overview of 51021-0400 by Molex

Tip: Data for a part may vary between manufacturers. You can filter for manufacturers on the top of the page next to the part image and part number.

Applications Space Technology Aerospace and Defense Transportation and Logistics Renewable Energy Automotive Robotics and Drones

Price & Stock for 51021-0400

Part # Distributor Description Stock Price Buy
DISTI # 38C9871
Newark Connector Housing, Rcpt, 4Pos, Product Range:Picoblade 51021 Series, Gender:Receptacle, No. Of Positions:4Positions, Pitch Spacing:1.25Mm, For Use With:Molex Picoblade 50058 & 50079 Series Socket Contacts, Contact Termination:Crimp Rohs Compliant: Yes |Molex 51021-0400 (Alternate Part Number: 800753575615 Min Qty: 1 Package Multiple: 1 Date Code: 0 Container: Bulk 869115
  • 1 $0.1510
  • 10 $0.1390
  • 25 $0.1390
  • 50 $0.1280
  • 100 $0.1280
  • 250 $0.1280
$0.1280 / $0.1510 Buy Now
DISTI # 82K9003
Newark Wire-To-Board Connector, Picoblade 51021 Series, Crimp, Receptacle, 4, 1.25 Mm, Tin Plated Contacts Rohs Compliant: Yes |Molex 51021-0400 (Alternate Part Number: 800753575615 Min Qty: 1 Package Multiple: 1 Date Code: 0 Container: Bulk 661745
  • 1 $0.2650
  • 10 $0.1840
  • 25 $0.1730
  • 50 $0.1600
  • 100 $0.1480
  • 250 $0.1410
$0.1410 / $0.2650 Buy Now
DISTI # 26AC8131
Newark 1.25 Wtb Rec Hsg 4Ckt Rohs Compliant: Yes |Molex 51021-0400 (Alternate Part Number: 800753575615 Min Qty: 1 Package Multiple: 1 Date Code: 0 Container: Bulk 0
  • 1 $0.3180
  • 10 $0.2600
  • 25 $0.2330
  • 50 $0.2100
  • 100 $0.1880
  • 250 $0.1740
$0.1740 / $0.3180 Buy Now
DISTI # 38C9871
Avnet Americas Conn Wire to Board Housing Receptacle 4 POS 1.25mm ST Cable Mount - Bulk (Alt: 38C9871) RoHS: Compliant Min Qty: 1 Package Multiple: 1 Lead time: 68 Weeks, 3 Days Container: Bulk 207450 Partner Stock
  • 1 $0.2650
  • 10 $0.1900
  • 25 $0.1750
  • 50 $0.1590
  • 100 $0.1450
$0.1450 / $0.2650 Buy Now
DISTI # 538-51021-0400
Mouser Electronics Headers & Wire Housings RECEPTACLE 4 POS RoHS: Compliant 124120
  • 1 $0.2500
  • 10 $0.1630
  • 100 $0.1380
  • 500 $0.1300
  • 1,000 $0.1120
  • 2,000 $0.0940
  • 50,000 $0.0920
$0.0920 / $0.2500 Buy Now
Bisco Industries   52088
  • 1 $2.6322
  • 100 $0.4797
  • 250 $0.1696
  • 500 $0.0936
  • 1,000 $0.0976
  • 2,500 $0.1345
$0.0936 / $2.6322 Buy Now
Onlinecomponents.com Conn Housing F 4 POS 1.25mm Crimp ST Cable Mount PicoBlade™ Bag RoHS: Compliant 68511 In Stock
  • 600 $0.1170
  • 3,300 $0.1020
  • 6,700 $0.0990
  • 14,100 $0.0930
  • 150,000 $0.0890
$0.0890 / $0.1170 Buy Now
Bristol Electronics   Min Qty: 4 7491
  • 4 $1.3162
  • 17 $0.8555
  • 60 $0.4936
  • 204 $0.4212
  • 441 $0.3685
  • 1,046 $0.3422
$0.3422 / $1.3162 Buy Now
Quest Components Header Connector, Cable Mount, Plug, 4 Contacts, Socket, 0.049 Pitch 11304
  • 1 $0.1800
  • 2,084 $0.0780
  • 7,693 $0.0720
$0.0720 / $0.1800 Buy Now
Quest Components Header Connector, Cable Mount, Plug, 4 Contacts, Socket, 0.049 Pitch 568
  • 1 $0.7000
  • 30 $0.2100
  • 239 $0.1400
$0.1400 / $0.7000 Buy Now
Quest Components Header Connector, Cable Mount, Plug, 4 Contacts, Socket, 0.049 Pitch 568
  • 1 $0.7000
  • 30 $0.2100
  • 239 $0.1400
$0.1400 / $0.7000 Buy Now
Quest Components Header Connector, Cable Mount, Plug, 4 Contacts, Socket, 0.049 Pitch 1926
  • 1 $1.2500
  • 321 $0.5000
  • 1,601 $0.4375
$0.4375 / $1.2500 Buy Now
Quest Components Header Connector, Cable Mount, Plug, 4 Contacts, Socket, 0.049 Pitch 4416
  • 1 $1.7550
  • 1,754 $0.4388
  • 3,420 $0.3861
$0.3861 / $1.7550 Buy Now
Quest Components Header Connector, Cable Mount, Plug, 4 Contacts, Socket, 0.049 Pitch 113602
  • 1 $0.5300
  • 7,548 $0.0928
  • 17,252 $0.0795
$0.0795 / $0.5300 Buy Now
DISTI # 51021-0400
TTI Headers & Wire Housings RECEPTACLE 4 POS RoHS: Compliant pbFree: Pb-Free Min Qty: 42 Package Multiple: 1 Container: Bulk Americas - 319429
In Stock
  • 42 $0.1200
  • 50 $0.1150
  • 100 $0.0870
  • 250 $0.0860
  • 500 $0.0840
  • 1,000 $0.0780
  • 3,800 $0.0770
$0.0770 / $0.1200 Buy Now
DISTI # 38C9871
Avnet Americas Conn Wire to Board Housing Receptacle 4 POS 1.25mm ST Cable Mount - Bulk (Alt: 38C9871) RoHS: Compliant Min Qty: 1 Package Multiple: 1 Lead time: 68 Weeks, 3 Days Container: Bulk 207450 Partner Stock
  • 1 $0.2650
  • 10 $0.1900
  • 25 $0.1750
  • 50 $0.1590
  • 100 $0.1450
$0.1450 / $0.2650 Buy Now
DISTI # 38C9871
Avnet Americas Conn Wire to Board Housing Receptacle 4 POS 1.25mm ST Cable Mount - Bulk (Alt: 38C9871) RoHS: Compliant Min Qty: 1 Package Multiple: 1 Lead time: 68 Weeks, 3 Days Container: Bulk 207450 Partner Stock
  • 1 $0.2650
  • 10 $0.1900
  • 25 $0.1750
  • 50 $0.1590
  • 100 $0.1450
$0.1450 / $0.2650 Buy Now
DISTI # MOL51021-0400
Interstate Connecting Components 1.25 WTB REC HSG 4CKT 10174
18750 On Order
  • 1 $0.1155
  • 1,700 $0.0972
  • 4,200 $0.0942
  • 8,200 $0.0927
  • 16,400 $0.0914
$0.0914 / $0.1155 Buy Now
DISTI # Molex 51021-0400
PEI Genesis Board Connector, Contact 219649
Buy Now
Component Electronics, Inc IN STOCK SHIP TODAY 200
  • 1 $0.2300
  • 100 $0.1700
  • 1,000 $0.1500
$0.1500 / $0.2300 Buy Now
DISTI # 9733116
element14 Asia-Pacific CONNECTOR HOUSING, RCPT, 4POS RoHS: Compliant Min Qty: 1 Container: Each 892266
  • 1 $0.2473
  • 100 $0.2415
  • 375 $0.2356
  • 1,500 $0.2290
  • 7,500 $0.1879
$0.1879 / $0.2473 Buy Now
DISTI # 9733116
Farnell CONNECTOR HOUSING, RCPT, 4POS RoHS: Compliant Min Qty: 1 Lead time: 13 Weeks, 0 Days Container: Each 661745
  • 1 $0.2935
  • 10 $0.1998
  • 50 $0.1711
  • 100 $0.1424
  • 500 $0.1274
  • 1,000 $0.1136
$0.1136 / $0.2935 Buy Now
DISTI # 4239931
Farnell   RoHS: Compliant Min Qty: 1000 Container: Each 0
  • 1,000 $0.1149
$0.1149 Buy Now
Master Electronics Conn Housing F 4 POS 1.25mm Crimp ST Cable Mount PicoBlade™ Bag RoHS: Compliant 68511 In Stock
  • 600 $0.1170
  • 3,300 $0.1020
  • 6,700 $0.0990
  • 14,100 $0.0930
  • 150,000 $0.0890
$0.0890 / $0.1170 Buy Now

Part Details for 51021-0400

51021-0400 Part Data Attributes

Parametric Data
51021-0400 Molex
Buy Now Datasheet
Compare Parts:
51021-0400 Molex Board Connector, 4 Contact(s), 1 Row(s), Female, Straight, 0.049 inch Pitch, Crimp Terminal, Locking, Receptacle,
Pbfree Code Yes
Rohs Code Yes
Part Life Cycle Code Active
Ihs Manufacturer MOLEX LLC
Reach Compliance Code compliant
ECCN Code EAR99
HTS Code 8536.69.40.40
Factory Lead Time 68 Weeks, 3 Days
Samacsys Manufacturer Molex
Additional Feature COMPATIBLE CONTACTS: 50079-8000; 50058-8000; 50079-8100; 50058-8100
Body Breadth 0.126 inch
Body Depth 0.156 inch
Body Length 0.266 inch
Body/Shell Style RECEPTACLE
Connector Type BOARD CONNECTOR
Contact Finish Mating NOT SPECIFIED
Contact Finish Termination NOT APPLICABLE
Contact Gender FEMALE
Contact Material NOT SPECIFIED
Contact Pattern RECTANGULAR
Contact Resistance 20 mΩ
Contact Style SQ PIN-SKT
DIN Conformance NO
Dielectric Withstanding Voltage 353VAC V
Durability 30 Cycles
Filter Feature NO
IEC Conformance NO
Insulation Resistance 100000000 Ω
Insulator Color NATURAL
Insulator Material POLYBUTYLENE TEREPHTHALATE
MIL Conformance NO
Mating Contact Pitch 0.049 inch
Mating Information MULTIPLE MATING PARTS AVAILABLE
Mixed Contacts NO
Mounting Option 1 LOCKING
Mounting Type CABLE
Number Of Connectors ONE
Number of Rows Loaded 1
Operating Temperature-Max 105 °C
Operating Temperature-Min -40 °C
Option GENERAL PURPOSE
Polarization Key POLARIZED HOUSING
Rated Current (Signal) 1 A
Reference Standard UL
Termination Type CRIMP
Total Number of Contacts 4
UL Flammability Code 94V-0
Wire Size-Max 26 AWG
Wire Size-Min 32 AWG

Alternate Parts for 51021-0400

This table gives cross-reference parts and alternative options found for 51021-0400. The Form Fit Function (FFF) tab will give you the options that are more likely to serve as direct pin-to-pin alternates or drop-in parts. The Functional Equivalents tab will give you options that are likely to match the same function of 51021-0400, but it may not fit your design. Always verify details of parts you are evaluating, as these parts are offered as suggestions for what you are looking for and are not guaranteed.

Part Number Description Manufacturer Compare
560041 Board Connector, 4 Contact(s), 1 Row(s), Female, 0.049 inch Pitch, Crimp Terminal, Locking, Plug W+P Products GmbH 51021-0400 vs 560041
0510210400 Board Connector, 4 Contact(s), 1 Row(s), Female, Straight, Crimp Terminal, Receptacle, ROHS AND REACH COMPLIANT Molex 51021-0400 vs 0510210400
Part Number Description Manufacturer Compare
0510210400 Board Connector, 4 Contact(s), 1 Row(s), Female, Straight, Crimp Terminal, Receptacle, ROHS AND REACH COMPLIANT Molex 51021-0400 vs 0510210400
560041 Board Connector, 4 Contact(s), 1 Row(s), Female, 0.049 inch Pitch, Crimp Terminal, Locking, Plug W+P Products GmbH 51021-0400 vs 560041

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