Connector Retainers & Latches

Connector retainers are components that increase the mechanical strength of a connection by providing a latching force between the socket and the connector itself. Connector retainers are vital to ensuring that pins and electrical sockets will not come loose or disconnect as a result of mechanical stress or vibration.

When are connector retainers used?

Retainers can be part of either the socket itself or part of the chassis or enclosure that houses the socket. While their use is optional, they provide additional contact retention security, ensuring that all the components of a connector stay secure. Connector retainers are also used to prevent accidental disconnection of the two parts of the connector, making sure that the device works smoothly without any interruptions.

How do connector retainers work?

Connector retainers are available in several formats depending on the application, but fundamentally function by in some way gripping the connector and holding it to the socket, whether by a latching mechanism, screw-thread or soldered bond.


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Description Price Accessory Type For Use With Number of Ways Series Series Number
RS Stock No. 123-2602
Mfr. Part No.505152-0400
BrandMolex
£0.038
Each (In a Bag of 2000)
Units
Retainer 505151 DuraClik TPA Wire-to-Board Housing, 505153 DuraClik TPA Wire-to-Board Terminal 4 DuraClik 505152
RS Stock No. 680-1806
Mfr. Part No.4-1437353-5
£4.18
Each
Units
Card Guide - - - -
RS Stock No. 910-6914
Mfr. Part No.560125-0800
BrandMolex
£0.08
Each (In a Pack of 50)
Units
Retainer 560123 DuraClik™ ISL Terminal Housing 8 DuraClik ISL 560125
RS Stock No. 811-6778
Mfr. Part No.1969609-2
£0.053
Each (In a Pack of 10)
Units
TPA VAL-U-LOK Series Connector System 2 VAL-U-LOK 1969609
RS Stock No. 122-4860
Mfr. Part No.105325-2004
BrandMolex
£0.037
Each (In a Bag of 950)
Units
TPA Retainer 105307 Nano-Fit™ TPA Receptacle Housing, 105308 Nano-Fit™ TPA Receptacle Housing 4 Nano-Fit 105325
RS Stock No. 172-2369
Mfr. Part No.DF33C-2RS-3.3
BrandHirose
£0.067
Each (In a Pack of 100)
Units
Single Row Retainer Internal Power Source 2 EnerBee DF33C -
RS Stock No. 823-6862
Mfr. Part No.552100-1
£0.33
Each
Units
Bail Clip CHAMP Series Connector - CHAMP 552100
RS Stock No. 123-2581
Mfr. Part No.73838-0004
BrandMolex
£0.075
Each (In a Box of 3000)
Units
Crimp Housing SL Modular Connectors 4 SL 73838
RS Stock No. 164-2777
Mfr. Part No.1452388-1
£0.184
Each (In a Box of 3000)
Units
Secondary Lock 154 Position Connector 96 - -
RS Stock No. 905-6005
Mfr. Part No.71-3-L
£3.329
Each (In a Pack of 10)
Units
LOK Tainer 71 Series Aluminum Extractor - 71 -
RS Stock No. 719-9683
Mfr. Part No.1452388-1
£0.188
Each (In a Pack of 5)
Units
Secondary Lock 154 Position Connector 96 - -
RS Stock No. 161-6006
Mfr. Part No.4-1437353-5
£2.36
Each (In a Bag of 150)
Units
Card Guide - - - -
RS Stock No. 111-3911
Mfr. Part No.DF33C-2RS-3.3
BrandHirose
£0.076
Each (In a Pack of 10)
Units
Single Row Retainer Internal Power Source 2 EnerBee DF33C -
RS Stock No. 161-8526
Mfr. Part No.1-2132782-2
£0.14
Each (In a Bag of 300)
Units
Breakaway Retainer Economy Power Connector 12 EP-II 2132782
RS Stock No. 122-5093
Mfr. Part No.105325-2004
BrandMolex
£0.106
Each (In a Bag of 20)
Units
TPA Retainer 105307 Nano-Fit™ TPA Receptacle Housing, 105308 Nano-Fit™ TPA Receptacle Housing 4 Nano-Fit 105325
RS Stock No. 811-6901
Mfr. Part No.1-2132782-2
£0.142
Each (In a Pack of 10)
Units
Breakaway Retainer Economy Power Connector 12 EP-II 2132782
RS Stock No. 908-1051
Mfr. Part No.73838-0004
BrandMolex
£0.076
Each (In a Pack of 10)
Units
Crimp Housing SL™ Modular Connectors 4 SL 73838
RS Stock No. 908-1064
Mfr. Part No.73838-0006
BrandMolex
£0.087
Each (In a Pack of 10)
Units
Crimp Housing SL™ Modular Connectors 6 SL 73838
RS Stock No. 123-2556
Mfr. Part No.51143-0105
BrandMolex
£0.032
Each (In a Bag of 6000)
Units
Retainer 51142 Series 1 CP-6.5 51143
RS Stock No. 337-0908
Mfr. Part No.DF1E-8RS/P-2.5
BrandHirose
£0.189
Each (In a Bag of 100)
Units
Connector - 8 - -
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EP 2.5 TPA (Terminal Position Assurance) retainers for use with EP TPA receptacle housings. These TPA retainers ensure that the contacts are fully inserted into the housing and prevent them from backing out due to vibration. A locking latch on top of the TPA engages with nubs on the connector ...
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