CDEP105-4R3MC-88 Equivalent & Substitute Parts

Part Overview

The CDEP105-4R3MC-88 is a 4.3 µH shielded drum core, wirewound inductor manufactured by Sumida America Components Inc. This surface mount component is rated for 7.8 A continuous current with a maximum DC resistance of 10.5 mOhm and operates across the temperature range of -40°C to 125°C. The part is currently classified as obsolete, which necessitates identification of equivalent alternatives for ongoing production and maintenance applications. Substitute parts must maintain identical electrical performance and mechanical compatibility while offering improved product status or compliance characteristics.

Substiute Parts

CDEP105-4R3MC-88

Sumida America Components Inc.In Stock: 743CDEP105-4R3MC-88 Datasheet

Current PartRFQ

CDEP105NP-4R3MC-88

Sumida America Components Inc.In Stock: 1931CDEP105NP-4R3MC-88 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CDEP105-4R3MC-88 are identified based on strict electrical and mechanical parameter matching within the CDEP105 series. The substitution criteria are:

Electrical Parameters (Must Match Exactly):

• Inductance: 4.3 µH
• Inductance Tolerance: ±20%
• Current Rating: 7.8 A
• Saturation Current: 6.8 A
• DC Resistance: 10.5 mOhm Maximum
• Core Material: Ferrite
• Shielding: Shielded
• Operating Temperature Range: -40°C to 125°C
• Inductance Test Frequency: 100 kHz

Mechanical Parameters (Must Match Exactly):

• Mounting Type: Surface Mount
• Physical Dimensions: 10.00 mm × 10.00 mm
• Height (Seated): 5.60 mm Maximum
• Core Type: Drum Core, Wirewound

Acceptable Variations:

• Product Status: Active status preferred over obsolete
• Packaging Format: Tape & Reel acceptable as alternative to standard packaging
• RoHS Compliance: ROHS3 compliant variants acceptable
• Inventory Availability: Higher stock levels acceptable

The CDEP105NP-4R3MC-88 qualifies as a direct substitute based on complete parameter alignment across all electrical and mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

The CDEP105NP-4R3MC-88 is the direct substitute for the obsolete CDEP105-4R3MC-88. Selection of the substitute part is based on the following engineering factors:

Product Status Consideration: The main part CDEP105-4R3MC-88 carries an obsolete designation, which restricts long-term availability and future procurement reliability. The substitute CDEP105NP-4R3MC-88 maintains active product status, ensuring continued manufacturing support and supply chain stability.

Regulatory Compliance: The substitute part achieves ROHS3 compliance, whereas the main part is RoHS non-compliant. For applications subject to RoHS directives or customer requirements mandating RoHS compliance, the substitute part satisfies these regulatory obligations.

Electrical and Mechanical Equivalence: All critical electrical parameters—inductance value, current rating, saturation current, and DC resistance—are identical between the main part and substitute. Mechanical compatibility is confirmed through matching dimensions, mounting type, and core construction. The parts are functionally interchangeable in circuit applications.

Packaging and Inventory: The substitute is available in Tape & Reel packaging format with significantly higher inventory levels (1900 pcs versus 684 pcs), supporting both prototype and production volume requirements.

Direct Substitution Approval: The CDEP105NP-4R3MC-88 is approved for direct substitution in all applications currently using the CDEP105-4R3MC-88 without circuit modification or performance degradation.

Frequently Asked Questions (FAQ)

Q: Can the CDEP105NP-4R3MC-88 be used as a direct replacement for the CDEP105-4R3MC-88?

A: Yes. The CDEP105NP-4R3MC-88 is a direct substitute. All electrical parameters (inductance, current rating, DC resistance, saturation current) and mechanical specifications (dimensions, mounting type, core material) are identical. No circuit modifications are required.

Q: What is the difference between the two part numbers?

A: The primary differences are product status and packaging. The CDEP105-4R3MC-88 is obsolete with standard packaging, while the CDEP105NP-4R3MC-88 is active with Tape & Reel packaging. The "NP" designation in the substitute part number indicates the Tape & Reel packaging format. Both parts are manufactured by Sumida America Components Inc. within the CDEP105 series.

Q: Does the substitute part meet RoHS requirements?

A: Yes. The CDEP105NP-4R3MC-88 is ROHS3 compliant. The original part CDEP105-4R3MC-88 is RoHS non-compliant. If your application or customer requirements mandate RoHS compliance, the substitute part satisfies these obligations.

Q: Are the physical dimensions identical?

A: Yes. Both parts have identical dimensions of 10.00 mm × 10.00 mm (length × width) with a maximum seated height of 5.60 mm. PCB footprint and mounting compatibility are identical.

Q: What is the inductance tolerance for both parts?

A: Both parts have an inductance tolerance of ±20% at the 100 kHz test frequency. This tolerance applies equally to the main part and substitute.

Q: Is the Tape & Reel packaging compatible with standard pick-and-place equipment?

A: Tape & Reel packaging is the standard format for automated surface mount assembly. The CDEP105NP-4R3MC-88 in Tape & Reel format is compatible with all standard SMT placement equipment.

Q: What is the current rating, and can it be exceeded?

A: The continuous current rating is 7.8 A for both parts. The saturation current is 6.8 A. Operating above the saturation current will result in inductor saturation and loss of inductance. The component must not be operated above the rated current specifications.

Q: Are there any temperature derating considerations?

A: Both parts operate across the temperature range of -40°C to 125°C without derating. Performance specifications apply across this entire operating range.

Q: What is the DC resistance specification?

A: The maximum DC resistance is 10.5 mOhm for both parts. This specification is critical for applications where resistive losses must be minimized, such as power supply filtering circuits.

Q: Is the substitute part available in higher quantities?

A: Yes. The CDEP105NP-4R3MC-88 has 1900 pcs in stock compared to 684 pcs for the original part, providing greater availability for production requirements.