UT2020-001 Common Mode Choke Equivalent & Substitute Parts

Part Overview

The UT2020-001 is a 2-line common mode choke manufactured by Triad Magnetics, designed for power line filtering applications. This through-hole component operates at 9 mH inductance @ 10 kHz with a maximum current rating of 500 mA and DC resistance of 1.4 Ohm. The part is currently active in production and maintains full compliance with RoHS3, REACH, and international safety standards (CSA, IEC, UL). Substitute parts are identified when inventory constraints, lead time requirements, or application-specific parameter needs necessitate alternative component selection within the same functional category.

Substiute Parts

UT2020-001

Triad MagneticsIn Stock: 1056UT2020-001 Datasheet

Current PartRFQ

ET2424-012

Triad MagneticsIn Stock: 1076ET2424-012 Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the UT2020-001 is determined by the following critical parameters:

Primary Substitution Criteria:

• Filter Type: Power Line
• Number of Lines: 2
• Mounting Type: Through Hole
• Package / Case: Horizontal, 4 PC Pin
• Voltage Rating - AC: 250V minimum
• Operating Temperature Range: -20°C ~ 105°C minimum
• Compliance: RoHS3, CSA, IEC, UL certifications

Secondary Compatibility Parameters:

• Current Rating (Max): Must equal or exceed 500 mA
• DC Resistance (Max): Must not exceed 1.4 Ohm
• Inductance @ Frequency: 9 mH @ 10 kHz nominal

The ET2424-012 qualifies as a parametric equivalent because it maintains all primary substitution criteria while exceeding secondary compatibility thresholds (600 mA current rating, 1.6 Ohm DCR, 24 mH inductance). Higher inductance and current ratings provide design margin in applications where the UT2020-001 reaches performance limits.

Parameter Comparison

Engineering Selection Recommendations

UT2020-001 Selection Criteria:

• Applications requiring 9 mH inductance @ 10 kHz
• Current loads up to 500 mA
• Compact form factor (22.99mm L x 24.51mm W x 20.00mm H)
• Primary inventory availability: 1023 pcs in stock

ET2424-012 Selection Criteria:

• Applications requiring higher inductance filtering (24 mH @ 10 kHz)
• Current loads up to 600 mA with reduced thermal stress
• Larger form factor (26.50mm L x 26.50mm W x 23.00mm H)
• Primary inventory availability: 1033 pcs in stock
• Applications where increased DC resistance (1.6 Ohm vs 1.4 Ohm) is acceptable

Both parts maintain identical compliance certifications (CSA, IEC, UL) and RoHS3 status, ensuring regulatory equivalence in power line filtering applications. Selection between these parts depends on circuit inductance requirements and available PCB space rather than compliance or safety considerations.

Frequently Asked Questions (FAQ)

Q: Can ET2424-012 directly replace UT2020-001 in all applications?

A: ET2424-012 is electrically compatible in applications where higher inductance (24 mH vs 9 mH) and higher current capacity (600 mA vs 500 mA) do not negatively affect circuit performance. Physical dimensions differ (26.50mm vs 22.99mm length), requiring PCB layout verification. DC resistance increases from 1.4 Ohm to 1.6 Ohm, resulting in slightly higher power dissipation.

Q: What are the physical dimension differences?

A: UT2020-001 measures 22.99mm L x 24.51mm W x 20.00mm H. ET2424-012 measures 26.50mm L x 26.50mm W x 23.00mm H. Both use identical through-hole, 4-pin horizontal mounting packages.

Q: Are compliance certifications identical?

A: Yes. Both UT2020-001 and ET2424-012 carry CSA, IEC, and UL approvals. Both are RoHS3 compliant and REACH unaffected.

Q: What is the impact of increased DC resistance in ET2424-012?

A: The 0.2 Ohm increase in DC resistance (1.4 Ohm to 1.6 Ohm) results in proportionally higher I²R power dissipation. At 500 mA, this represents an additional 50 mW of heat generation. Thermal performance must be evaluated in applications operating near maximum current ratings.

Q: Can UT2020-001 substitute for ET2424-012?

A: UT2020-001 cannot substitute for ET2424-012 in applications requiring 24 mH inductance or 600 mA current capacity. Lower inductance and current ratings make UT2020-001 unsuitable for such applications.

Q: Are both parts suitable for -20°C to 105°C operating environments?

A: Yes. Both UT2020-001 and ET2424-012 maintain identical operating temperature ranges of -20°C to 105°C.