CDEP105MENP-1R2PC Equivalent & Substitute Parts

Part Overview

The CDEP105MENP-1R2PC is a 1.2 µH shielded inductor manufactured by Sumida America Components Inc., designed for surface mount applications requiring high current handling up to 13.5 A with low DC resistance of 4.76 mOhm maximum. This component features a metal composite core construction and operates across the industrial temperature range of -40°C to 125°C. The part is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement continuity.

Substiute Parts

CDEP105MENP-1R2PC

Sumida America Components Inc.In Stock: 1155CDEP105MENP-1R2PC Datasheet

Current PartRFQ

SCEP105H-1R2

Signal TransformerIn Stock: 1074SCEP105H-1R2 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CDEP105MENP-1R2PC is determined by the following critical parameters:

Primary Matching Criteria:

• Inductance value: 1.2 µH (exact match required)
• Shielding: Shielded construction
• Mounting type: Surface mount
• Operating temperature range: -40°C to 125°C minimum
• RoHS3 compliance

Secondary Compatibility Factors:

• Current rating: Minimum 11 A acceptable (original part rated 13.5 A)
• DC resistance: Maximum 8 mOhm acceptable (original part 4.76 mOhm max)
• Saturation current: Minimum 21 A acceptable (original part 21.2 A)
• Inductance tolerance: ±20% acceptable (original part ±25%)

The SCEP105H-1R2 manufactured by Signal Transformer meets all primary matching criteria and falls within acceptable secondary compatibility parameters, qualifying it as a direct substitute for the obsolete CDEP105MENP-1R2PC.

Parameter Comparison

Engineering Selection Recommendations

The SCEP105H-1R2 is qualified as a direct substitute for the obsolete CDEP105MENP-1R2PC based on the following engineering factors:

Compliance & Availability:

• SCEP105H-1R2 maintains ROHS3 compliance, matching the original part specification
• Active product status ensures long-term availability and supply chain continuity
• Moisture sensitivity level remains unchanged at MSL 1 (Unlimited)

Electrical Performance:

• Inductance value and operating temperature range are identical
• Saturation current specification is equivalent (21 A vs. 21.2 A)
• DC resistance increase from 4.76 mOhm to 8 mOhm represents a 68% rise; circuit thermal performance must be evaluated if current approaches the 11 A rating
• Current rating reduction from 13.5 A to 11 A requires verification that application current does not exceed 11 A continuous operation

Physical Compatibility:

• Surface mount configuration and nonstandard package dimensions are compatible
• Footprint dimensions (10.40mm x 10.40mm vs. 11.00mm x 10.00mm) and height (5.60mm vs. 5.50mm) are within acceptable PCB layout tolerances
• Packaging format (Tape & Reel) supports automated assembly processes

Frequently Asked Questions (FAQ)

Q: Can SCEP105H-1R2 be used in all applications where CDEP105MENP-1R2PC was specified?

A: The SCEP105H-1R2 is compatible with applications where the circuit current does not exceed 11 A continuous operation. If the original design operated at currents between 11 A and 13.5 A, thermal analysis is required to confirm acceptable performance with the higher DC resistance of 8 mOhm.

Q: What is the impact of the increased DC resistance on circuit performance?

A: The DC resistance increases from 4.76 mOhm to 8 mOhm. This results in higher resistive losses (I²R heating). At 11 A, the original part dissipates 0.577 W while the substitute dissipates 0.968 W. Thermal management and component temperature rise must be evaluated for the specific application.

Q: Are the physical dimensions compatible with existing PCB layouts?

A: The SCEP105H-1R2 dimensions (10.40mm L x 10.40mm W x 5.60mm H) are slightly smaller than the original (11.00mm L x 10.00mm W x 5.50mm H). The footprint is compatible with existing surface mount pads designed for the CDEP105MENP-1R2PC. Verify pad spacing and clearance in your specific PCB design.

Q: What is the difference between metal composite and wirewound core construction?

A: The CDEP105MENP-1R2PC uses metal composite core construction, while the SCEP105H-1R2 uses wirewound construction. Both are shielded designs suitable for the specified inductance and current ratings. Core material differences do not affect electrical substitution eligibility for this application.

Q: Is the inductance tolerance difference significant?

A: The original part specifies ±25% tolerance while the substitute specifies ±20%. The tighter tolerance of the substitute provides improved consistency. Both tolerances are acceptable for standard inductor applications; however, if the circuit requires the wider tolerance band of the original part, this should be confirmed with circuit analysis.

Q: How should I verify compatibility before production implementation?

A: Conduct thermal testing at maximum rated current (11 A) to confirm acceptable temperature rise. Verify inductance value at 100 kHz using the same measurement conditions as the original specification. Confirm saturation behavior does not occur below the 21 A specification. Validate PCB layout compatibility with the slightly different footprint dimensions.