| Attribute | Value |
|---|---|
| Product Category: | |
| Manufacturer: | Molex |
| Manufacturer Part Number: | Molex 34566-0303 |
| Color: | Blue |
| Series: | 34566 - MX123 |
| Amperage: | 11 A, 25 A |
| Connector Type: | MX123 |
| Gender: | Receptacle |
| Housing Material: | Nylon |
| Number of Contacts: | 73 |
| Number of Rows: | 4 |
| Pitch: | 2.54 mm |
| Material: | Nylon |
| Keying: | Yes |
| Operating Temperature Range: | -40 - 125 °C |
| Circuit Application: | Power |
| Polarized to Mate: | Yes |
| Connector System: | Wire to Board |
| Termination Pitch: | 2.54 mm |
| Glow Wire Capable: | No |
| Lock to Mating Part: | Yes |
| Stackable: | No |
| Part Aliases: | 0345660303 |
| Contact Detail: | 73 |
| SKU: | MOL34566-0303 |
34566-0303
| Heilind Number: | MOL34566-0303 |
| Manufacturer: | Molex |
| Manufacturer Number: | 34566-0303 |
| Tariff Info (HTS): | 8536904000 |
| Datasheet: | Packaging Specifications |
| ECAD Model: | |
Description:
2.54mm Pitch, MX123 Female Receptacle Housing, Keying Option C, Wire Dress Option 0, 73 Circuits, Blue TPA
More >>Specifications
Detailed Description
Easily connect power components with our MX123 Series receptacle. Designed for efficient wire-to-board connections, this connector features a durable nylon housing and 73 contacts arranged in four rows, providing ample connectivity options. With a pitch of 2.54mm and an operating temperature range of -40 to 125°C, it offers reliable performance in various environments. The polarized design ensures secure mating, while the keying feature further enhances installation ease. RoHS compliant and featuring a locking mechanism, it meets stringent industry standards for quality and safety. Perfect for power circuit applications, this connector is a dependable choice for your project.
Frequently Bought Together
| Product | Part # | Description | Stock |
|---|---|---|---|
 | Molex 19071-0136 | InsulKrimp Ring Tongue Terminal for 8 AWG Wire |  |
 | Molex 33001-5002 | MX150 Female Terminal Sealed, Silver Plating, 18 and 20 AWG, Left Reel Payoff | |
 | Molex 33467-0004 | 2.54mm Pitch MX64 Terminal, Gold (Au) Plating, 22 AWG, Left Reel Payoff, Also used with MX123 Female Receptacle Housing | |
 | Molex 33467-0005 | 2.54mm Pitch MX64 Terminal, Gold (Au) Plating, 18-20 AWG, Right Reel Payoff, Also used with MX123 Female Receptacle Housing | |
 | Molex 33472-1206 | MX150 Sealed Female Connector, Dual Row, 12 Circuits, Polarization A, with Connector Position Assurance, Black | |
 | Molex 33472-4806 | MX150 Sealed Female Connector, Dual Row, 8 Circuits, Polarization A, with Connector Position Assurance, Black | |
 | Molex 34345-0001 | MX 150 Cavity Plug Sealed | |
 | Molex 34565-0003 | MX123 73/80 Circuit Dress Cover | |
 | Molex 34566-0103 | 2.54mm Pitch, MX123 Female Receptacle Housing, Keying Option A, Wire Dress Option 0, 73 Circuits, Black TPA | |
 | Molex 34566-0203 | 2.54mm Pitch, MX123 Female Receptacle Housing, Keying Option B, Wire Dress Option 0, 73 Circuits, Gray TPA | |
 | Molex 34576-0703 | 2.54mm Pitch, MX123 Female Receptacle Housing, Keying Option G, Wire Dress Option 0, 56 Circuits, Blue TPA | |
 | Molex 34586-0001 | MX123 0.64mm Grommet Seal Plug | |
 | Molex 34770-0402 | MX150 Mat-Sealed Female Connector Assembly, Single Row, 4 Circuits, Keying Option B, with Connector Position Assurance, Light Gray | |
 | Molex 42815-0031 | Mini-Fit Sr. Crimp Terminal, Female, 8 AWG, Tin (Sn), USE NYE LUBE ON MATING SURFACES | |
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 | 514557 - Equipment/Production Transfer or rearrangement. his notification is to inform you that Molex will be move molds and assembly line transfer. This PCN will move from Lincoln, Nebraska 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 | |||
| 01/05/2024 | 514647 - Retraction of PCN 512047. This a retraction PCN for the part numbers mentioned from PCN 512047. These parts number will be part of Phase 3 for series MX123 and were repeated in another PCN(514557). The intention is to have each part number in one PCN for customer visibility and clarity. | 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 | |||
| 12/24/2022 | 512047 - Equipment Transfer, Production Transfer or Rearrangement. This notification is to inform you about an equipment transfer that has been used to manufacture impacted part(s). Equipment has been moved to different site/ location/ premises. No changes will be made to product as part of this change. | 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 | |||
| 07/29/2022 | 510937 - Change Supplier. in efforts to mitigate the supply risk of resin material our current supplier for SPS/PA66 grade of material will be transitioning to a new Sub-Supplier fir compounding. | Download | |||
| 08/01/2020 | 508485 - Warehouse transfer. moving from Lincoln (duns# 967495487) to Bolingbrook (Duns# 103340709) | Download | |||
| 09/22/2014 | GCM 10649862 - New, Modified, Or Replacement Tooling. | Download | |||
| 08/11/2014 | GCM 10622037 - Product Component Change. | Download | |||
Availability
Immediate Shipment:
Call
Stock Location:
In Stock
Factory Stock:
Call for Stock
Factory Lead:
100
Unit Of Measure:
Each
Minimum/Multiple:
1/1
Invalid quantity value
Documents & Media
Environmental & Export Classifications
| Attribute | Value |
|---|---|
| RoHS Compliant: | Unkown |
Additional Resources
| Attribute | Value |
|---|---|
| Molex: | 34566-0303 |
| Other Names: | 0345660303 |