CDEP147NP-1R8MC-73 Equivalent & Substitute Parts

Part Overview

The CDEP147NP-1R8MC-73 is a 1.8 µH shielded drum core wirewound inductor manufactured by Sumida America Components Inc. This surface mount component is rated for 17.5 A continuous current with a maximum DC resistance of 3.23 mOhm and operates across the temperature range of -40°C to 125°C. The part maintains active product status with 1140 units in current inventory. Equivalent and substitute parts are identified to support design flexibility, supply chain continuity, and application-specific requirements where shielding characteristics or current ratings may differ from the primary specification.

Substiute Parts

CDEP147NP-1R8MC-73

Sumida America Components Inc.In Stock: 1173CDEP147NP-1R8MC-73 Datasheet

Current PartRFQ

HCF1305-1R8-R

Eaton - Electronics DivisionIn Stock: 4141HCF1305-1R8-R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CDEP147NP-1R8MC-73 are identified based on the following critical parameters that determine functional equivalence:

Primary Matching Criteria:

• Inductance value: 1.8 µH
• Inductance tolerance: ±20%
• Core material: Ferrite
• Mounting type: Surface Mount
• Operating temperature range: -40°C to 125°C
• Inductance test frequency: 100 kHz

Secondary Compatibility Parameters:

• Current rating within acceptable range for the application
• DC resistance within acceptable range for the application
• Saturation current rating
• Shielding configuration (shielded vs. unshielded)
• Physical dimensions and height

The HCF1305-1R8-R qualifies as a substitute part because it matches the primary inductance, tolerance, core material, mounting type, and operating temperature specifications. Differences in current rating (16.3 A vs. 17.5 A), saturation current (18 A vs. 29.6 A), DC resistance (3.1 mOhm vs. 3.23 mOhm), shielding (unshielded vs. shielded), and physical dimensions must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

CDEP147NP-1R8MC-73 (Primary Part):

• Select when shielded configuration is required to minimize electromagnetic interference (EMI) in sensitive circuits
• Suitable for applications requiring the full 17.5 A continuous current rating
• Higher saturation current (29.6 A) provides greater margin above rated current
• Larger physical footprint (14.50 mm × 14.50 mm × 8.00 mm) must fit within PCB layout constraints
• ROHS3 compliance supports latest environmental and regulatory requirements
• Active product status with 1140 units in inventory ensures supply availability

HCF1305-1R8-R (Substitute Part):

• Select when unshielded configuration is acceptable and EMI shielding is not a design requirement
• Suitable for applications with continuous current requirements up to 16.3 A
• Lower saturation current (18 A) requires verification that peak current transients remain below this threshold
• Smaller physical footprint (12.50 mm × 12.50 mm × 5.00 mm) offers space savings on PCB
• RoHS compliance meets environmental standards
• Active product status with 4034 units in inventory provides strong supply continuity
• Lower DC resistance (3.1 mOhm vs. 3.23 mOhm) results in marginally reduced power dissipation

Substitution Feasibility: Both parts share identical inductance (1.8 µH), tolerance (±20%), core material (ferrite), operating temperature range (-40°C to 125°C), and test frequency (100 kHz). The substitute part is suitable for applications where the 1.2 A reduction in current rating and 11.6 A reduction in saturation current do not exceed application limits, and where unshielded operation is acceptable.

Frequently Asked Questions (FAQ)

Q: Can HCF1305-1R8-R replace CDEP147NP-1R8MC-73 in all applications?

A: No. The substitute part differs in three critical areas: (1) current rating is 16.3 A versus 17.5 A, (2) saturation current is 18 A versus 29.6 A, and (3) shielding is absent. Substitution is valid only when the application current does not exceed 16.3 A continuous, peak transient current remains below 18 A, and EMI shielding is not required.

Q: What is the impact of the unshielded configuration in HCF1305-1R8-R?

A: Unshielded inductors generate magnetic fields that radiate into surrounding circuitry. In applications sensitive to electromagnetic interference, this may cause signal degradation, crosstalk, or regulatory compliance issues. The shielded CDEP147NP-1R8MC-73 contains the magnetic field and is required for noise-sensitive applications.

Q: Are the physical dimensions compatible between these parts?

A: No. The CDEP147NP-1R8MC-73 measures 14.50 mm × 14.50 mm × 8.00 mm, while the HCF1305-1R8-R measures 12.50 mm × 12.50 mm × 5.00 mm. PCB footprint, trace routing, and component placement must be verified before substitution. The smaller substitute part may require PCB redesign.

Q: Do both parts meet the same environmental and regulatory standards?

A: Both parts are RoHS compliant and operate across -40°C to 125°C. The main part carries ROHS3 compliance, while the substitute carries RoHS compliance. Both have MSL 1 (Unlimited) moisture sensitivity. ECCN and HTSUS classifications are identical (EAR99 and 8504.50.4000 respectively).

Q: What is the significance of the DC resistance difference?

A: The main part has 3.23 mOhm maximum DCR, while the substitute has 3.1 mOhm maximum DCR. This 0.13 mOhm difference results in negligible power dissipation variation in most applications. At 17.5 A, the main part dissipates approximately 98.6 mW maximum, while the substitute at 16.3 A dissipates approximately 82.3 mW maximum.

Q: Which part should be selected for new designs?

A: For new designs, evaluate application requirements for continuous current, peak current transients, and EMI sensitivity. If the application requires 17.5 A continuous current or saturation margin above 18 A, or if shielding is necessary, select CDEP147NP-1R8MC-73. If the application operates below 16.3 A continuous, peak current remains below 18 A, and unshielded operation is acceptable, HCF1305-1R8-R offers space and cost advantages.

Q: Are there inventory or lead time considerations?

A: The substitute part HCF1305-1R8-R has 4034 units in stock compared to 1140 units for the main part, indicating stronger supply availability. Both parts maintain active product status. Consult current inventory and lead time data from authorized distributors for time-sensitive applications.