Equivalent & Substitute Parts for Qualtek 857-01/005

Part Overview

The Qualtek 857-01/005 is a power entry connector receptacle designed for IEC 320-C14 panel mount applications. This component features male blades, filtered EMI/RFI protection, and quick connect termination rated for 1A at 115/250VAC. The part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system maintenance and new design implementations where this connector type is required.

Substiute Parts

857-01/005

QualtekIn Stock: 921857-01/005 Datasheet

Current PartRFQ

1EF1F

TE Connectivity Corcom FiltersIn Stock: 10941EF1F Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the Qualtek 857-01/005 is determined by strict alignment with the following electrical and mechanical parameters:

• Connector style must be IEC 320-C14
• Connector type must be receptacle with male blades
• Current rating at appliance inlet must be 1A
• Voltage rating must support 115/250VAC or 120/250VAC operation
• Filter type must be filtered (EMI, RFI) commercial grade
• Filter current rating must be 1A
• Mounting configuration must be panel mount with flange
• Termination must be quick connect
• Regulatory approvals must include CSA, UL, and VDE

The TE Connectivity Corcom Filters 1EF1F meets all substitution criteria. This part maintains electrical equivalence through identical connector specifications, current and voltage ratings, and filtering characteristics. Both parts carry the same regulatory certifications and RoHS3 compliance status.

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity Corcom Filters 1EF1F is the direct functional equivalent for the obsolete Qualtek 857-01/005. Both parts maintain identical electrical specifications, mechanical mounting configurations, and regulatory certifications. The TE Connectivity part carries active product status, ensuring ongoing availability and supply chain continuity.

Selection of the 1EF1F is appropriate for applications requiring IEC 320-C14 power entry connectors with commercial-grade EMI/RFI filtering at 1A, 120/250VAC. The part's CSA, UL, and VDE approvals satisfy standard industrial and commercial equipment requirements. ROHS3 compliance aligns with current environmental regulations.

Frequently Asked Questions (FAQ)

Q: Can the TE Connectivity 1EF1F directly replace the Qualtek 857-01/005 in existing designs?

A: Yes. Both parts share identical connector style, type, current and voltage ratings, filter specifications, mounting configuration, and termination method. The 1EF1F is electrically and mechanically equivalent.

Q: What is the voltage difference between 115/250VAC and 120/250VAC?

A: Both voltage ratings accommodate standard North American power supply ranges. The 120/250VAC rating of the 1EF1F covers the operating envelope of the 115/250VAC specification.

Q: Are the quick connect terminations compatible between these parts?

A: Both parts use quick connect termination. The 1EF1F specifies 0.250" (6.3mm) quick connect terminals, which is the standard dimension for this connector class.

Q: Does the TE Connectivity part support front or rear side mount?

A: The 1EF1F supports both front and rear side mount configurations, providing additional installation flexibility compared to the original Qualtek part.

Q: Are regulatory certifications equivalent?

A: Yes. Both parts carry CSA, UL, and VDE approvals and maintain ROHS3 compliance, satisfying identical regulatory requirements.