UT2020-003 Common Mode Choke Equivalent & Substitute Parts

Part Overview

The UT2020-003 is a 2.5 mH Common Mode Choke (CMC) manufactured by Triad Magnetics, designed for power line filtering applications. This through-hole component operates at 700mA maximum current with 400mOhm DC resistance and is rated for 250V AC operation across a temperature range of -20°C to 105°C. The part is currently active in production and maintains ROHS3 compliance with CSA, IEC, and UL approvals. Equivalent substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity.

Substiute Parts

UT2020-003

Triad MagneticsIn Stock: 741UT2020-003 Datasheet

Current PartRFQ

UT2024-008

Triad MagneticsIn Stock: 1121UT2024-008 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the UT2020-003 is determined by strict equivalence across the following critical electrical and mechanical parameters:

Electrical Equivalence Criteria:

• Inductance value: 2.5 mH @ 10 kHz
• Current rating: 700mA maximum
• DC resistance: 400mOhm maximum
• AC voltage rating: 250V
• Number of lines: 2 (Common Mode Choke configuration)
• Filter type: Power Line

Mechanical Equivalence Criteria:

• Mounting type: Through Hole
• Package configuration: Horizontal, 4 PC Pin
• Operating temperature range: -20°C to 105°C

Compliance Equivalence Criteria:

• RoHS3 compliance
• Regulatory approvals: CSA, IEC, UL

The UT2024-008 meets all specified electrical, mechanical, and compliance parameters and is classified as a parametric equivalent substitute for the UT2020-003.

Parameter Comparison

Engineering Selection Recommendations

Both the UT2020-003 and UT2024-008 are active production components from Triad Magnetics with identical electrical specifications and regulatory compliance. Selection between these parts is based on the following engineering considerations:

Electrical Performance: Both parts deliver equivalent electrical performance with 2.5 mH inductance, 700mA current capacity, and 400mOhm DC resistance. No electrical performance difference exists between the two parts.

Regulatory Compliance: Both parts carry CSA, IEC, and UL approvals and maintain ROHS3 compliance, satisfying identical regulatory requirements for power line filtering applications.

Physical Footprint: The UT2024-008 has a smaller length and width (18.49mm x 22.99mm) compared to the UT2020-003 (22.99mm x 24.51mm), but a greater height (23.50mm versus 20.00mm). PCB layout and enclosure space constraints determine which dimensional profile is suitable for a given application.

Procurement and Inventory: The UT2024-008 currently has higher inventory availability (1102 pcs) compared to the UT2020-003 (716 pcs), which may influence supply chain decisions.

Pin Configuration: Both parts use identical through-hole, horizontal, 4 PC pin configuration, ensuring direct PCB footprint compatibility.

Frequently Asked Questions (FAQ)

Q: Can the UT2024-008 be used as a direct replacement for the UT2020-003 in existing designs?

A: The UT2024-008 is electrically equivalent to the UT2020-003 with identical inductance, current rating, DC resistance, and voltage specifications. However, the physical dimensions differ. The UT2024-008 is smaller in length and width but taller. PCB layout verification is required to confirm that the different height (23.50mm versus 20.00mm) does not create clearance conflicts with adjacent components or enclosure constraints.

Q: Are there any compliance or certification differences between these parts?

A: No. Both the UT2020-003 and UT2024-008 carry identical regulatory approvals (CSA, IEC, UL) and maintain ROHS3 compliance. They are equivalent for applications requiring these certifications.

Q: What is the primary difference between these two parts?

A: The primary difference is physical packaging. Both parts are 2-line common mode chokes with identical electrical specifications, but the UT2024-008 has a more compact footprint in length and width dimensions, while the UT2020-003 is shorter in height. The choice depends on available PCB space and enclosure geometry.

Q: Can these parts be used interchangeably in power line filtering circuits?

A: Yes, from an electrical standpoint. Both parts provide 2.5 mH inductance at 10 kHz, support 700mA current, and are rated for 250V AC operation. Mechanical fit must be verified based on PCB layout and available mounting space.

Q: Which part should be selected for new designs?

A: Selection should be based on PCB layout requirements and available space. If height is constrained, the UT2020-003 (20.00mm height) is preferable. If length and width are constrained, the UT2024-008 (18.49mm x 22.99mm) is preferable. Both parts are active production components with equivalent electrical performance and compliance.