ACT45L-201-2P-TL000 Equivalent & Substitute Parts

Part Overview

The ACT45L-201-2P-TL000 is a 2-line common mode choke (CMC) manufactured by TDK Corporation, designed for signal line filtering in surface mount applications. This component delivers 200 µH inductance at 100 kHz with a maximum current rating of 100mA and is qualified to the AEC-Q200 automotive standard. The part is currently listed as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement planning.

Substiute Parts

ACT45L-201-2P-TL000

TDK CorporationIn Stock: 38612ACT45L-201-2P-TL000 Datasheet

Current PartRFQ

AE2002

Pulse ElectronicsIn Stock: 1424AE2002 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ACT45L-201-2P-TL000 is determined by the following critical parameters:

• Number of Lines: Must be 2-line configuration
• Mounting Type: Must be surface mount
• Package / Case: Must be horizontal, 4 PC pad footprint
• Physical Dimensions: Must match 4.50mm × 3.20mm × 2.94mm envelope
• Current Rating: Must support minimum 100mA
• AEC-Q200 Qualification: Required for automotive applications
• Inductance Range: Acceptable variance within application-specific filtering requirements
• DC Resistance: Must not exceed maximum allowable for circuit performance

The AE2002 from Pulse Electronics meets these substitution criteria with compatible physical footprint, electrical ratings, and automotive qualification.

Parameter Comparison

Engineering Selection Recommendations

The AE2002 (Pulse Electronics) is an active production substitute for the obsolete ACT45L-201-2P-TL000. Both components carry AEC-Q200 automotive qualification and RoHS compliance, meeting regulatory requirements for automotive and industrial applications.

The primary electrical difference is inductance: the AE2002 provides 160 µH compared to the original 200 µH. This 20% reduction must be evaluated against circuit filtering requirements. The substitute exhibits slightly higher DC resistance (5Ω vs. 4.5Ω) and improved voltage and temperature ratings, which provide design margin in most applications.

Physical compatibility is confirmed: both components use identical 4.50mm × 3.20mm footprints with negligible height variance (0.01mm), ensuring direct PCB layout compatibility without redesign.

Selection of the AE2002 is appropriate for new designs and obsolescence mitigation where the reduced inductance value is acceptable within circuit specifications. Verification of filtering performance against the 160 µH inductance specification is required before implementation.

Frequently Asked Questions (FAQ)

Q: Can the AE2002 be used as a direct drop-in replacement for the ACT45L-201-2P-TL000?

A: Physical and electrical compatibility is confirmed for PCB footprint and mounting. However, the 20% lower inductance (160 µH vs. 200 µH) requires circuit-level validation to ensure filtering performance meets application requirements. Voltage and temperature ratings of the AE2002 exceed the original specification, providing design margin.

Q: What is the significance of the inductance difference between these parts?

A: Inductance determines the filtering effectiveness of the common mode choke. The AE2002's 160 µH value will provide proportionally reduced attenuation compared to the 200 µH original. Applications with strict EMI filtering requirements must verify that 160 µH inductance is sufficient for the target frequency range and noise suppression specifications.

Q: Are both parts qualified for automotive applications?

A: Yes. Both the ACT45L-201-2P-TL000 and AE2002 carry AEC-Q200 qualification, confirming suitability for automotive-grade reliability and environmental stress testing requirements.

Q: What is the packaging difference between these parts?

A: The ACT45L-201-2P-TL000 is supplied in Cut Tape (CT) packaging, while the AE2002 is supplied in Tape & Reel (TR) packaging. Both use identical component footprints (4.50mm × 3.20mm, horizontal 4 PC pad configuration). Packaging format affects procurement and assembly handling but does not impact electrical or mechanical compatibility.

Q: Are there any compliance or regulatory differences?

A: Both components are RoHS compliant and REACH unaffected. The AE2002 carries RoHS Compliant status while the original is RoHS3 Compliant; both meet current regulatory requirements for electronic component manufacturing and use.