34566-0803

ICC Number:	MOL34566-0803
Manufacturer:	Molex
Manufacturer Number:	34566-0803
Datasheet:	Datasheet
ECAD Model:

Description:

2.54mm Pitch, MX123 Female Receptacle Housing, Keying Option H, Wire Dress Option 0, 80 Circuits, Gray TPA

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Specifications

Attribute	Value
Product Category:	Connector Accessories Connector Housings
Manufacturer:	Molex
Manufacturer Part Number:	Molex 34566-0803
Housing Material:	Nylon
Number of Rows:	4
Pitch:	2.54 mm
Polarization:	Yes
Number of Positions:	80
Housing Color:	Gray
Connector and Housing Type:	Receptacle
Operating Temperature:	-40 to 125 °C
SKU:	MOL34566-0803

Detailed Description

Introducing the 34566-0803, a high-performance connector designed for power applications. This gray, 4-row receptacle features 80 contacts, with a pitch of 2.54mm for secure wire-to-board connections. Made of durable nylon, it ensures reliable operation even in harsh environments, with an operating temperature range of -40 to 125°C. The MX123 connector system offers a secure and polarized fit, with a locking feature for added stability. RoHS compliant and with a current rating of 25A, this connector is suitable for a wide range of industrial and automotive applications. Trust the 34566-0803 for seamless power connections in your projects.

Frequently Bought Together

Product	Part #	Description	Stock
	Molex 172264-4008	Ultra-Fit Tangless Terminal Position Assurance (TPA), 3.50mm Pitch, 8 Circuits, Natural
	Molex 19038-0013	InsulKrimp Snap Receptacle, for 16-14 AWG Wire, Nylon, Fits Male Plug Diameter 4.57mm, Carton
	Molex 19164-0056	Perma-Seal Butt Splice for 12-10 AWG Wire, Carton
	Molex 19434-0003	MX150L Female Terminal for 12-10 AWG Wire, Tin Plated
	Molex 33472-1206	MX150 Mat-Sealed Female Connector Assembly, Dual Row, 12 Circuits, Keying Option A, with Connector Position Assurance, Black
	Molex 33472-1606	MX150 Mat-Sealed Female Connector Assembly, Dual Row, 16 Circuits, Keying Option A, with Connector Position Assurance, Black
	Molex 33472-4801	MX150 Mat-Sealed Female Connector Assembly, Dual Row, 8 Circuits, Keying Option A, without Connector Position Assurance, Black
	Molex 34345-0001	MX150 Sealed Cavity Plug
	Molex 34565-0003	MX123 73/80 Circuit Dress Cover
	Molex 34566-1903	2.54mm Pitch, MX123 Female Receptacle Housing, Keying Option G, Wire Dress Option 9, 80 Circuits, Blue TPA
	Molex 34586-0001	MX123 0.64mm Grommet Seal Plug
	Molex 39-01-2080	Mini-Fit Jr. Receptacle Housing, Dual Row, 8 Circuits, UL 94V-2, Natural
	Molex 39-01-3025	Mini-Fit Jr. Receptacle Housing, Dual Row, 2 Circuits, UL 94V-2, Black
	Molex 43025-0400	Micro-Fit 3.0 Receptacle Housing, Dual Row, 4 Circuits, UL 94V-0, Low-Halogen, Black
	Molex 43025-0608	Micro-Fit 3.0 Receptacle Housing, Dual Row, 6 Circuits, UL 94V-0, Low-Halogen Since Inception, Black
	Molex 43645-0208	Micro-Fit 3.0 Receptacle Housing, Single Row, 2 Circuits, UL 94V-0, Low-Halogen Since Inception, Black
	Molex 43645-0300	Micro-Fit 3.0 Receptacle Housing, Single Row, 3 Circuits, UL 94V-0, Low-Halogen, Black

Product Change Notice

Effective Date	Description of Change	Download
04/15/2026	517169 - End of Life. LTB 9/30/25	Download
09/30/2025	516520 - Equipment Transfer, Production Transfer or Rearrangement. Molex has created this PCN to group the complete Mx123 Large footprint series together for better control over implementation. Previously the part numbers were mentioned in the transfer PCN's 514557 & 514558 and due to strategy they were retracted (516511). The molds are transferred from Lincoln, USA. The assembly line is already in Guad 2. China will continue support the EU/Asia demand.	Download
05/02/2025	516742 - Retraction of 513492. This retraction is to annunce that this PCN “513492” did not take place and Molex continues with the same compounder.	Download
02/28/2025	516511 - Partial Retraction of PCN 514557 & 514558. in these PCNs communication on 11/2023 will maintain the small footprint series whic is already in production at guadalajara site 2 plant we will create a new pcn (516520) in which we will manage the MX123 large footprint series and its implementation plan.	Download
09/02/2024	514558 - Equipment/Production Transfer or rearrangement. This notification is to inform you that will be move molds and Assy line transfer. This PCN will move from Chengdu, China to Guadalajara, Mexico (site 2) and it was made to provide the best delivery to locally production products. We are starting these transfers in later Q3 2024. No product changes will be made as part of this change.	Download
07/21/2023	513492 - Change Supplier. This letter is to inform you that in order to re-balance global supply chains, Molex will qualify a new compounder location to be used by the existing resin supplier.	Download
08/17/2022	512449 - Retraction of PCN 510937. retraction is due to the project not moving forward at this time, the compounding location for SPS/PA66 grade material will not be moving from the current sub-supplier. if it is deemed that this project will again move forward at a later date a new PCN will be created & sent to impacted customers.	Download
10/06/2017	502808 - Equipment Transfer, Production Transfer or Rearrangement. This letter is to inform you that production of the part(s) identified in this notice are being moved to a different production or shipping location. No changes will be made to the product as a result of this move.	Download
10/15/2015	GCM 10685958 - New, Modified, Or Replacement Tooling.	Download
10/01/2015	GCM 10706555 - New, Modified, Or Replacement Tooling.	Download
06/12/2015	GCM 10685960 - New, Modified, Or Replacement Tooling.	Download
05/11/2015	GCM 10682374 - New, Modified, Or Replacement Tooling.	Download
02/20/2015	GCM 10664193 - New, Modified, Or Replacement Tooling.	Download
08/11/2014	GCM 10622037 - Product Component Change.	Download