CEP125-1R5MC-D Equivalent & Substitute Parts

Part Overview

The CEP125-1R5MC-D is a 1.5 µH shielded drum core, wirewound inductor manufactured by Sumida America Components Inc. This surface mount component is rated for 16.5 A continuous current with a maximum DC resistance of 2.5 mOhm and operates across the temperature range of -40°C to 125°C. The part is classified as obsolete, necessitating identification of active equivalent components for ongoing production and maintenance applications. Substitute parts must maintain identical electrical performance and mechanical compatibility while offering improved product status and compliance certifications.

Substiute Parts

CEP125-1R5MC-D

Sumida America Components Inc.In Stock: 707CEP125-1R5MC-D Datasheet

Current PartRFQ

CEP125NP-1R5MC-D

Sumida America Components Inc.In Stock: 1476CEP125NP-1R5MC-D Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CEP125-1R5MC-D is determined by strict equivalence across the following critical parameters:

Electrical Parameters (Must Match Exactly):

• Inductance value: 1.5 µH
• Inductance tolerance: ±20%
• Current rating: 16.5 A
• Saturation current: 14 A
• DC resistance: 2.5 mOhm maximum
• Test frequency: 100 kHz

Mechanical & Environmental Parameters (Must Match Exactly):

• Core type: Drum core, wirewound
• Core material: Ferrite
• Shielding: Shielded
• Mounting type: Surface mount
• Package case: Nonstandard
• Physical dimensions: 12.50 mm × 12.50 mm × 5.60 mm (height maximum)
• Operating temperature: -40°C to 125°C
• Moisture sensitivity level: 1 (Unlimited)

Series Compatibility:

• Manufacturer series: CEP125

The CEP125NP-1R5MC-D qualifies as a direct substitute because it maintains identical electrical specifications, mechanical dimensions, environmental ratings, and series designation while offering improved product status and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The CEP125NP-1R5MC-D is the direct equivalent substitute for the obsolete CEP125-1R5MC-D. Selection of the substitute part is justified on the following engineering grounds:

Product Status: The CEP125NP-1R5MC-D maintains active product status with Sumida America Components Inc., ensuring continued availability and manufacturer support. The main part is classified as obsolete, creating supply chain risk for new designs and production continuity.

Regulatory Compliance: The CEP125NP-1R5MC-D is ROHS3 compliant, meeting current environmental and regulatory requirements for electronic components in regulated markets. The main part is RoHS non-compliant, which may restrict its use in applications subject to RoHS directives.

Electrical & Mechanical Equivalence: All critical electrical parameters (inductance, current rating, saturation current, DC resistance, test frequency) and mechanical parameters (dimensions, core type, shielding, mounting) are identical between the main part and substitute. This ensures direct functional compatibility without circuit redesign or board layout modification.

Packaging Consideration: The substitute part is supplied in Tape & Reel (TR) packaging, which is standard for automated assembly processes. The main part is supplied in bulk packaging. This difference does not affect electrical or mechanical performance and may provide manufacturing advantages through improved handling and placement efficiency.

Inventory & Availability: The CEP125NP-1R5MC-D has 1401 pieces in stock compared to 697 pieces for the main part, providing improved supply security for production requirements.

Frequently Asked Questions (FAQ)

Q: Can the CEP125NP-1R5MC-D be used as a direct replacement for the CEP125-1R5MC-D without circuit modification?

A: Yes. The CEP125NP-1R5MC-D is electrically and mechanically identical to the CEP125-1R5MC-D across all specified parameters. No circuit redesign, simulation, or board layout changes are required. The substitute part operates at the same inductance value (1.5 µH), current rating (16.5 A), DC resistance (2.5 mOhm maximum), and temperature range (-40°C to 125°C).

Q: What is the difference between the CEP125-1R5MC-D and CEP125NP-1R5MC-D part numbers?

A: The primary differences are product status and packaging. The CEP125-1R5MC-D is obsolete and supplied in bulk packaging. The CEP125NP-1R5MC-D is an active product supplied in Tape & Reel (TR) packaging. The "NP" designation in the part number indicates the Tape & Reel packaging configuration. All electrical and mechanical specifications are identical.

Q: Does the Tape & Reel packaging of the CEP125NP-1R5MC-D affect component performance?

A: No. Packaging format does not affect electrical performance, inductance value, current rating, or DC resistance. Tape & Reel packaging is a handling and assembly format that provides advantages for automated surface mount assembly processes. The component itself is identical to the bulk-packaged version.

Q: Is the CEP125NP-1R5MC-D RoHS compliant?

A: Yes. The CEP125NP-1R5MC-D is ROHS3 compliant. The original CEP125-1R5MC-D is RoHS non-compliant. If your application or market requires RoHS compliance, the CEP125NP-1R5MC-D is the appropriate selection.

Q: Are there any frequency or temperature limitations when substituting the CEP125NP-1R5MC-D?

A: No. Both parts operate identically across the specified temperature range of -40°C to 125°C and are tested at 100 kHz. The inductance tolerance of ±20% applies to both parts at the test frequency.

Q: What is the saturation current specification, and does it differ between the two parts?

A: The saturation current (Isat) is 14 A for both parts. This is the current level at which the inductor begins to saturate and inductance value degrades. The continuous current rating is 16.5 A, which exceeds the saturation current specification. Both parts have identical saturation characteristics.

Q: Can the CEP125NP-1R5MC-D be used in high-frequency applications above 100 kHz?

A: The inductance value of 1.5 µH is specified and tested at 100 kHz. Operation at frequencies above the test frequency may result in inductance variation due to core characteristics. Use of this component at frequencies significantly above 100 kHz requires verification against your specific application requirements and frequency-dependent performance data.