SCX114-101 Equivalent & Substitute Parts

Part Overview

The SCX114-101 is an unshielded 2-coil inductor array manufactured by Signal Transformer, designed for surface mount applications with dual inductance configurations. This component provides 100 µH inductance in parallel configuration and 396.06 µH in series configuration. The part is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement continuity.

Substiute Parts

SCX114-101

Signal TransformerIn Stock: 1123SCX114-101 Datasheet

Current PartRFQ

PF0553.104NLT

Pulse ElectronicsIn Stock: 998PF0553.104NLT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SCX114-101 is determined by the following critical parameters:

Electrical Equivalence Criteria:

• Dual-coil inductor array configuration (2 coils)
• Parallel inductance value: 100 µH (±20% tolerance band acceptable)
• Series inductance value: 396.06 µH (±20% tolerance band acceptable)
• Current rating capability in both parallel and series configurations
• DC resistance characteristics within acceptable operating limits

Mechanical & Environmental Criteria:

• Surface mount package type
• Nonstandard package dimensions
• RoHS3 compliance
• MSL rating of 1 or better
• REACH compliance status

The PF0553.104NLT from Pulse Electronics meets these substitution criteria with matching parallel inductance (100 µH), comparable series inductance (400 µH within tolerance), and superior current handling capabilities across both configurations.

Parameter Comparison

Engineering Selection Recommendations

The PF0553.104NLT is a direct functional substitute for the obsolete SCX114-101. Both components are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements. The substitute part offers the following advantages:

• Active product status ensures long-term availability and supply chain continuity
• Identical parallel inductance value (100 µH) with matching tolerance
• Series inductance within specified tolerance band (400 µH vs. 396.06 µH)
• Superior current handling in both configurations (1.9 A parallel vs. 540 mA; 970 mA series vs. 270 mA)
• Lower DC resistance characteristics, reducing thermal dissipation
• Shielded construction provides additional electromagnetic isolation

Physical dimensions differ slightly (12.50mm x 12.50mm vs. 11.70mm x 11.70mm footprint; 8.00mm vs. 5.50mm height). PCB layout and mechanical clearance verification is required prior to implementation.

Frequently Asked Questions (FAQ)

Q: Can the PF0553.104NLT directly replace the SCX114-101 without circuit modifications?

A: Electrical substitution is valid based on matching inductance values and tolerance specifications. Physical footprint differences (0.8mm increase in length/width, 2.5mm increase in height) require PCB layout verification to confirm mechanical compatibility and clearance.

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

A: The SCX114-101 is unshielded while the PF0553.104NLT is shielded. Shielding reduces electromagnetic coupling to adjacent components and external fields. In applications sensitive to EMI, the shielded substitute may provide improved performance. In noise-insensitive applications, both configurations are functionally equivalent.

Q: Are the current ratings interchangeable?

A: The PF0553.104NLT provides higher current ratings (1.9 A parallel, 970 mA series) compared to the SCX114-101 (540 mA parallel, 270 mA series). The substitute can handle higher current loads without saturation. If the original design operates at or near the SCX114-101 current limits, the substitute provides additional design margin.

Q: What is the impact of DC resistance differences?

A: The PF0553.104NLT exhibits lower DC resistance in both configurations (160 mOhm parallel vs. 557 mOhm; 650 mOhm series vs. 2.227 Ohm). Lower resistance reduces I²R losses and heat generation, improving efficiency. This is a beneficial characteristic for thermal management.

Q: Are both parts suitable for high-temperature applications?

A: The PF0553.104NLT specifies an operating temperature range of -40°C to 125°C. The SCX114-101 does not provide operating temperature specifications in the available data. For applications requiring defined temperature performance, the substitute part offers documented thermal operating limits.

Q: What compliance certifications apply to both parts?

A: Both the SCX114-101 and PF0553.104NLT are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic components in most jurisdictions.