Equivalent & Substitute Parts for Qualtek 851-02/002

Part Overview

The Qualtek 851-02/002 is a single-phase EMC/EMI line filter rated for 115V/250VAC at 2A with 50/60Hz operation. This chassis-mount filter features wire lead termination and is designed for general-purpose applications requiring electromagnetic compatibility filtering. The product is classified as obsolete, making identification of suitable substitute components essential for ongoing system maintenance and new design implementations.

Substiute Parts

851-02/002

QualtekIn Stock: 1087851-02/002 Datasheet

Current PartRFQ

2VB3

TE Connectivity Corcom FiltersIn Stock: 14552VB3 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the Qualtek 851-02/002 is determined by the following critical parameters:

• Filter Type & Configuration: Single-phase, single-stage topology
• Voltage Rating: Must support 250VAC minimum; 115V/250VAC dual rating preferred
• Current Rating: 2A continuous operation
• Frequency Compatibility: 50/60Hz operation
• Mounting & Termination: Chassis mount with wire lead connections
• Regulatory Compliance: CSA, UR, and VDE certifications required
• RoHS Compliance: ROHS3 Compliant status

The TE Connectivity Corcom Filters 2VB3 meets these substitution criteria as a single-phase, single-stage line filter with identical current rating, frequency range, mounting type, and termination style. Both components share equivalent regulatory approvals and RoHS compliance status.

Parameter Comparison

Engineering Selection Recommendations

The TE Connectivity Corcom Filters 2VB3 is the designated substitute for the obsolete Qualtek 851-02/002 based on functional equivalence across all critical electrical and mechanical parameters. Both components are certified by CSA, UR, and VDE, and both meet ROHS3 compliance requirements.

Selection of the 2VB3 is appropriate for applications operating at 250VAC, 2A, 50/60Hz with chassis-mount, wire-lead configurations. The 2VB3 is currently in active production with established supply availability.

For applications requiring 115VAC operation, the voltage rating difference must be evaluated against specific system requirements. The inductance differential (1.1mH versus 539µH) and operating temperature range variance (-25°C ~ 85°C versus -10°C ~ 40°C) should be assessed relative to the intended application environment and filtering performance specifications.

Frequently Asked Questions (FAQ)

Q: Can the TE Connectivity 2VB3 directly replace the Qualtek 851-02/002 in all applications?

A: The 2VB3 is functionally equivalent for 250VAC, 2A applications with identical mounting, termination, and regulatory certifications. Applications requiring 115VAC operation must verify that 250VAC-only rating is acceptable. Inductance and temperature range differences should be confirmed against application specifications.

Q: What is the primary reason for substitution?

A: The Qualtek 851-02/002 is obsolete. The TE Connectivity 2VB3 provides equivalent filtering functionality with active manufacturing status and established supply chain availability.

Q: Are the regulatory certifications equivalent?

A: Both components carry identical CSA, UR, and VDE approvals and meet ROHS3 compliance standards, ensuring equivalent regulatory acceptance.

Q: How do the inductance values differ, and does this matter?

A: The 851-02/002 has 1.1mH inductance while the 2VB3 has 539µH. The lower inductance of the 2VB3 may affect filtering performance at specific frequencies. Verify that the 2VB3 meets the attenuation and filtering requirements of your application.

Q: What is the operating temperature consideration?

A: The 851-02/002 operates from -25°C to 85°C, while the 2VB3 operates from -10°C to 40°C. If your application requires operation below -10°C or above 40°C, the 2VB3 may not be suitable without additional thermal management or alternative component selection.

Q: Are packaging and lead configurations identical?

A: Both components use chassis-mount configuration with wire lead termination, ensuring mechanical compatibility in existing designs.