PHG.1K.308.CLLC55Z Equivalent & Substitute Parts

Part Overview

The PHG.1K.308.CLLC55Z is an 8-position circular connector receptacle manufactured by LEMO, featuring female sockets with solder cup termination. This connector is designed for applications requiring push-pull fastening, shielded construction, and IP66/IP68 ingress protection. The part is currently active in production with 824 units in stock. Substitute parts are identified to provide alternative sourcing options when the primary part is unavailable or when design flexibility permits component interchange based on electrical and mechanical compatibility.

Substiute Parts

PHG.1K.308.CLLC55Z

LEMOIn Stock: 863PHG.1K.308.CLLC55Z Datasheet

Current PartRFQ

K21K0C-P08LFG0-550S

ODUIn Stock: 835K21K0C-P08LFG0-550S Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the PHG.1K.308.CLLC55Z is determined by the following critical parameters:

Mandatory Compatibility Criteria:

• Connector type: Receptacle, Female Sockets
• Number of positions: 8
• Termination method: Solder Cup
• Fastening type: Push-Pull
• Insert material: Polyetheretherketone (PEEK)
• Contact finish: Gold
• Shell material: Brass

Allowable Variation Parameters:

• Shell finish: Chrome or Chrome over Nickel
• Ingress protection: IP66/IP68 or IP68
• Current rating: Equal to or greater than 5A
• Operating temperature range: Must encompass or overlap the application requirements
• Cable opening: Within specified tolerance range (5.00mm ~ 5.50mm)

The substitute part K21K0C-P08LFG0-550S meets all mandatory criteria and operates within allowable variation parameters, qualifying it as a direct substitute for the PHG.1K.308.CLLC55Z.

Parameter Comparison

Engineering Selection Recommendations

Both the PHG.1K.308.CLLC55Z and K21K0C-P08LFG0-550S are active production parts with ROHS3 compliance and REACH unaffected status, meeting current regulatory requirements. The K21K0C-P08LFG0-550S provides a higher current rating of 7.5A compared to the 5A rating of the PHG.1K.308.CLLC55Z, making it suitable for applications with equal or lower current demands. The operating temperature range of the PHG.1K.308.CLLC55Z (-55°C ~ 200°C) exceeds that of the K21K0C-P08LFG0-550S (-40°C ~ 120°C); therefore, the K21K0C-P08LFG0-550S is appropriate only for applications operating within the -40°C ~ 120°C range. Both parts maintain compatible cable opening specifications and identical connector architecture, ensuring mechanical and electrical interchangeability within their respective operating parameters.

Frequently Asked Questions (FAQ)

Q: Can the K21K0C-P08LFG0-550S replace the PHG.1K.308.CLLC55Z in all applications?

A: The K21K0C-P08LFG0-550S is compatible with applications operating within the -40°C ~ 120°C temperature range. If your application requires operation below -40°C or above 120°C, the PHG.1K.308.CLLC55Z is the appropriate choice due to its extended operating temperature range of -55°C ~ 200°C.

Q: What are the key differences between these two connectors?

A: The primary differences are: (1) operating temperature range, with the PHG.1K.308.CLLC55Z supporting -55°C ~ 200°C versus -40°C ~ 120°C for the K21K0C-P08LFG0-550S; (2) current rating, with the K21K0C-P08LFG0-550S rated at 7.5A compared to 5A for the PHG.1K.308.CLLC55Z; (3) shell finish, with the PHG.1K.308.CLLC55Z using Chrome and the K21K0C-P08LFG0-550S using Chrome over Nickel. All other electrical and mechanical parameters are identical.

Q: Are both parts suitable for industrial and medical applications?

A: Both parts are ROHS3 compliant and REACH unaffected. The K21K0C-P08LFG0-550S is specifically listed for industrial, medical, military, and testing equipment applications. Confirm that the operating temperature and current requirements of your specific application align with the selected part's ratings.

Q: What is the significance of the cable opening specification?

A: The cable opening specification defines the acceptable range of cable diameters that can be accommodated by the connector. The PHG.1K.308.CLLC55Z accepts cables of 5.10mm ~ 5.50mm, while the K21K0C-P08LFG0-550S accepts 5.00mm ~ 5.50mm. Both ranges overlap sufficiently for standard cable sizes, ensuring compatibility in most applications.

Q: Do both connectors provide equivalent environmental protection?

A: The PHG.1K.308.CLLC55Z is rated IP66/IP68, while the K21K0C-P08LFG0-550S is rated IP68. Both ratings provide dust-tight and waterproof protection. The IP68 rating of the K21K0C-P08LFG0-550S indicates suitability for continuous immersion, while the IP66 rating of the PHG.1K.308.CLLC55Z indicates protection against powerful water jets. Select based on your specific environmental exposure requirements.