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CRC (Compact Robotic Connectors) I/O Connectors

Molex CRC (Compact Robotic Connectors) I/O Connector System provides a compact solution for small industrial robotics and factory automation equipment. The shielded rectangular I/O connectors provide 7.0A to 15.0A of signal/power in up to 50-circuits. The panel-mount connectors feature a compact design that takes up approximately 1/15th the space of industry-standard duty connectors. Terminal housings can be easily snapped into panel-mount shells without any tools making field installation and maintenance fast and easy. Molex CRC Connectors are delivered in kit form for easy assembly and housings and shells can accept either male or female inserts for maximum design flexibility.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.
I/O Connectors Compact Robot Plg Pi ot Plg Pin Set 12Ck 55836-1270 Molex 1: $50.41 510In Stock	Mfr. Part # 55836-1270 Mouser Part # 538-55836-1270	Molex	I/O Connectors Compact Robot Plg Pi ot Plg Pin Set 12Ck Learn More about Molex compact robotic connectors	Datasheet	510In Stock	$50.41 $42.82 $40.14 $38.35 View $35.19 $32.99	Min.: 1 Mult.: 1
I/O Connectors Compact Robot Conn R ec Pin HsgAssy 12Ckt 51233-1211 Molex 1: $10.35 331In Stock	Mfr. Part # 51233-1211 Mouser Part # 538-51233-1211	Molex	I/O Connectors Compact Robot Conn R ec Pin HsgAssy 12Ckt Learn More about Molex compact robotic connectors	Datasheet	331In Stock	$10.35 $7.93 $7.68 $7.22 View $6.84 $6.41 $6.28 $6.10 $6.03	Min.: 1 Mult.: 1
I/O Connectors CompactRobotConn Rec Socket HsgAssy 12Ckt 51238-1211 Molex 1: $7.70 539In Stock	Mfr. Part # 51238-1211 Mouser Part # 538-51238-1211	Molex	I/O Connectors CompactRobotConn Rec Socket HsgAssy 12Ckt Learn More about Molex compact robotic connectors	Datasheet	539In Stock	$7.70 $6.54 $6.14 $5.84 View $5.56 $4.42 $4.26 $4.20 $4.10	Min.: 1 Mult.: 1
Headers & Wire Housings Compact Robot Crimp Socket Loose SAu Plt 56121-8528 Molex 1: $0.546 27,738In Stock	Mfr. Part # 56121-8528 Mouser Part # 538-56121-8528	Molex	Headers & Wire Housings Compact Robot Crimp Socket Loose SAu Plt Learn More about Molex compact robotic connectors	Datasheet	27,738In Stock	$0.546 $0.464 $0.413 $0.394 View $0.352 $0.334 $0.309 $0.307	Min.: 1 Mult.: 1
I/O Connectors Compact Robot Conn R ecSocketHsgAssy50Ck 51238-5011 Molex 1: $13.64 230In Stock	Mfr. Part # 51238-5011 Mouser Part # 538-51238-5011	Molex	I/O Connectors Compact Robot Conn R ecSocketHsgAssy50Ck Learn More about Molex compact robotic connectors	Datasheet	230In Stock	$13.64 $12.44 $12.04 $11.66 View $11.14 $10.67 $10.13 $9.88	Min.: 1 Mult.: 1
I/O Connectors Compact Robot Conn R Conn Rec Shell 20Ckt 56377-2001 Molex 1: $18.89 197In Stock	Mfr. Part # 56377-2001 Mouser Part # 538-56377-2001	Molex	I/O Connectors Compact Robot Conn R Conn Rec Shell 20Ckt Learn More about Molex compact robotic connectors	Datasheet	197In Stock	$18.89 $18.67 $16.13 $14.90	Min.: 1 Mult.: 1
Headers & Wire Housings Compact Robot Crimp p Socket Loose W/Plt 56120-8528 Molex 1: $0.442 13,669In Stock	Mfr. Part # 56120-8528 Mouser Part # 538-56120-8528	Molex	Headers & Wire Housings Compact Robot Crimp p Socket Loose W/Plt Learn More about Molex compact robotic connectors	Datasheet	13,669In Stock	$0.442 $0.391 $0.363 $0.346 View $0.322 $0.304 $0.28 $0.276	Min.: 1 Mult.: 1
I/O Connectors Compact Robot 50Ckt Crimp SocketLseW/Plt 56120-8728 Molex 1: $0.741 7,535In Stock	Mfr. Part # 56120-8728 Mouser Part # 538-56120-8728	Molex	I/O Connectors Compact Robot 50Ckt Crimp SocketLseW/Plt Learn More about Molex compact robotic connectors	Datasheet	7,535In Stock	$0.741 $0.631 $0.563 $0.536 View $0.478 $0.454 $0.42 $0.364	Min.: 1 Mult.: 1
Headers & Wire Housings CRC F TERM GOLD 18A REEL OF 6000 56121-8428 Molex 6,000: $0.244 18,000In Stock	Mfr. Part # 56121-8428 Mouser Part # 538-56121-8428	Molex	Headers & Wire Housings CRC F TERM GOLD 18A REEL OF 6000 Learn More about Molex compact robotic connectors	Datasheet	18,000In Stock	Reel $0.244 $0.234 $0.222 $0.209	Min.: 6,000 Mult.: 6,000 : 6,000
Headers & Wire Housings Compact Robot Crimp rimp Pin Loose W/Plt 56118-8328 Molex 1: $0.546 15,740In Stock	Mfr. Part # 56118-8328 Mouser Part # 538-56118-8328	Molex	Headers & Wire Housings Compact Robot Crimp rimp Pin Loose W/Plt Learn More about Molex compact robotic connectors	Datasheet	15,740In Stock	$0.546 $0.463 $0.413 $0.394 View $0.35 $0.312 $0.298 $0.277	Min.: 1 Mult.: 1
I/O Connectors Compact Robot Conn Rec Shell 50Ckt 56377-5000 Molex 1: $23.76 224In Stock	Mfr. Part # 56377-5000 Mouser Part # 538-56377-5000	Molex	I/O Connectors Compact Robot Conn Rec Shell 50Ckt Learn More about Molex compact robotic connectors	Datasheet	224In Stock	$23.76 $21.83 $20.97 $20.53 View $20.48 $20.12 Quote	Min.: 1 Mult.: 1
I/O Connectors Compact Robot Conn R ec Pin Hsg Assy50Ckt 51233-5011 Molex 1: $19.18 123In Stock	Mfr. Part # 51233-5011 Mouser Part # 538-51233-5011	Molex	I/O Connectors Compact Robot Conn R ec Pin Hsg Assy50Ckt Learn More about Molex compact robotic connectors	Datasheet	123In Stock	$19.18 $16.07 $15.42 $14.78 View $13.16 $12.95 $12.62 $12.45 Quote	Min.: 1 Mult.: 1
I/O Connectors Compact RobotPower W/WTypePinSet20Ckt 55837-2070 Molex 1: $73.91 1In Stock	Mfr. Part # 55837-2070 Mouser Part # 538-55837-2070	Molex	I/O Connectors Compact RobotPower W/WTypePinSet20Ckt Learn More about Molex compact robotic connectors	Datasheet	1In Stock	$73.91 $62.01 $57.51 $55.47 View $52.83 $49.53	Min.: 1 Mult.: 1
I/O Connectors Compact Robot Plg Socket Assy 20Ckt 54332-2070 Molex 1: $44.95 37In Stock	Mfr. Part # 54332-2070 Mouser Part # 538-54332-2070	Molex	I/O Connectors Compact Robot Plg Socket Assy 20Ckt Learn More about Molex compact robotic connectors	Datasheet	37In Stock	$44.95 $40.47 $38.53 $37.58 View $35.56 $35.06 Quote	Min.: 1 Mult.: 1
I/O Connectors Compact Robot Crimp Socket Chain SAu Plt 56121-8728 Molex 1: $0.585 4,145In Stock	Mfr. Part # 56121-8728 Mouser Part # 538-56121-8728	Molex	I/O Connectors Compact Robot Crimp Socket Chain SAu Plt Learn More about Molex compact robotic connectors	Datasheet	4,145In Stock	$0.585 $0.502 $0.449 $0.428 View $0.381 $0.361 $0.335 $0.329 $0.285	Min.: 1 Mult.: 1
I/O Connectors Compact Robot Conn R Conn Rec Shell 50Ckt 56377-5001 Molex 1: $31.67 156In Stock	Mfr. Part # 56377-5001 Mouser Part # 538-56377-5001	Molex	I/O Connectors Compact Robot Conn R Conn Rec Shell 50Ckt Learn More about Molex compact robotic connectors	Datasheet	156In Stock	$31.67 $27.37 $25.58 $24.12 View $22.76 $21.93 $21.03	Min.: 1 Mult.: 1
I/O Connectors COMPACT ROBOT PLG PIN SET 20P 55836-2070 Molex 1: $44.63 229In Stock	Mfr. Part # 55836-2070 Mouser Part # 538-55836-2070	Molex	I/O Connectors COMPACT ROBOT PLG PIN SET 20P Learn More about Molex compact robotic connectors	Datasheet	229In Stock	$44.63 $40.48 $37.95 $36.11 View $29.24 $28.26 $28.24 Quote	Min.: 1 Mult.: 1
I/O Connectors CompactRobotConn Rec Socket HsgAssy 30Ck 51238-3011 Molex 1: $11.25 600In Stock 1,800On Order	Mfr. Part # 51238-3011 Mouser Part # 538-51238-3011	Molex	I/O Connectors CompactRobotConn Rec Socket HsgAssy 30Ck Learn More about Molex compact robotic connectors	Datasheet	600In Stock 1,800On Order On Order Ship Dates Mfr. #: 51238-3011 Stock: 600 Can Ship Immediately On Order: 600 Expected 2/23/2027 1,200 Expected 3/4/2027 Factory Lead-Time: 21 Weeks	$11.25 $9.56 $8.96 $8.53 View $7.89 $7.51 $7.10 $6.60	Min.: 1 Mult.: 1
Headers & Wire Housings CRC M TERM GLD 18AWG REEL OF 7000 56118-8228 Molex 7,000: $0.238 21,000In Stock	Mfr. Part # 56118-8228 Mouser Part # 538-56118-8228	Molex	Headers & Wire Housings CRC M TERM GLD 18AWG REEL OF 7000 Learn More about Molex compact robotic connectors	Datasheet	21,000In Stock	Reel $0.238 $0.222 $0.211 $0.205	Min.: 7,000 Mult.: 7,000 : 7,000
I/O Connectors CRC M TERM GLD 18AWG REEL OF 6000 56119-8228 Molex 6,000: $0.241 12,000In Stock	Mfr. Part # 56119-8228 Mouser Part # 538-56119-8228	Molex	I/O Connectors CRC M TERM GLD 18AWG REEL OF 6000 Learn More about Molex compact robotic connectors	Datasheet	12,000In Stock	Reel $0.241 $0.231	Min.: 6,000 Mult.: 6,000 : 6,000
Headers & Wire Housings CRC F TERM GLD 18AWG REEL OF 7000 56120-8428 Molex 7,000: $0.224 63,000In Stock	Mfr. Part # 56120-8428 Mouser Part # 538-56120-8428	Molex	Headers & Wire Housings CRC F TERM GLD 18AWG REEL OF 7000 Learn More about Molex compact robotic connectors	Datasheet	63,000In Stock	Reel $0.224 $0.208 $0.198 $0.194	Min.: 7,000 Mult.: 7,000 : 7,000
I/O Connectors Compact Robot Conn P lg Socket Assy 50Ck 54332-5001 Molex 1: $100.24 19In Stock 80Expected 11/3/2026	Mfr. Part # 54332-5001 Mouser Part # 538-54332-5001	Molex	I/O Connectors Compact Robot Conn P lg Socket Assy 50Ck Learn More about Molex compact robotic connectors	Datasheet	19In Stock 80Expected 11/3/2026	$100.24 $86.14 $75.57 $71.96 $69.93	Min.: 1 Mult.: 1
I/O Connectors Compact Robot Powe Plug Pin Set 4Ckt 55887-0471 Molex 1: $48.62 8In Stock	Mfr. Part # 55887-0471 Mouser Part # 538-55887-0471	Molex	I/O Connectors Compact Robot Powe Plug Pin Set 4Ckt Learn More about Molex compact robotic connectors	Datasheet	8In Stock	$48.62 $41.28 $37.48 $35.69 View $34.67 $32.67	Min.: 1 Mult.: 1
I/O Connectors Compact Robot Power Plg Socket Set 4Ckt 51297-0471 Molex 1: $23.70 6In Stock	Mfr. Part # 51297-0471 Mouser Part # 538-51297-0471	Molex	I/O Connectors Compact Robot Power Plg Socket Set 4Ckt Learn More about Molex compact robotic connectors	Datasheet	6In Stock	$23.70 $20.14 $18.63 $17.98 View $16.81 $15.77 $15.13 $14.95	Min.: 1 Mult.: 1
I/O Connectors Compact Robot Plg Pin Set 30Ckt 55836-3070 Molex 1: $73.53 13In Stock 80Expected 11/5/2026	Mfr. Part # 55836-3070 Mouser Part # 538-55836-3070	Molex	I/O Connectors Compact Robot Plg Pin Set 30Ckt Learn More about Molex compact robotic connectors	Datasheet	13In Stock 80Expected 11/5/2026	$73.53 $62.49 $57.82 $55.78 View $53.12 $49.80 Quote	Min.: 1 Mult.: 1

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