CDRH124NP-271MC Equivalent & Substitute Parts

Part Overview

The CDRH124NP-271MC is a 270 µH shielded surface mount inductor manufactured by Sumida America Components Inc. This fixed inductor is rated for 600 mA continuous current with a maximum DC resistance of 870 mOhm and operates across the temperature range of -40°C to 100°C. The component is housed in a nonstandard 12.00mm × 12.00mm package with a seated height of 4.50mm and is supplied in Tape & Reel packaging.

The CDRH124NP-271MC maintains Active product status and carries ROHS3 compliance certification. Equivalent and substitute parts are identified to support design flexibility, inventory management, and supply chain continuity when the primary part becomes unavailable or when design requirements permit functional alternatives.

Substiute Parts

CDRH124NP-271MC

Sumida America Components Inc.In Stock: 1050CDRH124NP-271MC Datasheet

Current PartRFQ

PA4303.274NLT

Pulse ElectronicsIn Stock: 4888PA4303.274NLT Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CDRH124NP-271MC is determined by strict alignment of the following critical parameters:

Inductance Value: Both the main part and substitute must maintain 270 µH inductance with ±20% tolerance to ensure circuit performance and impedance matching.

Current Rating: The substitute part must support a minimum current rating equal to or greater than 600 mA to handle the design load without saturation or thermal stress.

DC Resistance (DCR): The substitute part must not exceed 870 mOhm maximum DCR to maintain power dissipation and thermal characteristics within design specifications.

Shielding: Both parts must be shielded to prevent electromagnetic interference and maintain signal integrity in the application.

Core Material: Both parts utilize ferrite core material, ensuring consistent magnetic properties and frequency response.

Mounting Type: Both parts are surface mount components, compatible with standard PCB assembly processes.

Operating Temperature Range: The substitute part must support the application's thermal environment. The main part operates from -40°C to 100°C; substitutes operating at -40°C to 125°C or higher are acceptable.

Package Compatibility: Physical dimensions and height must accommodate the PCB layout and assembly constraints. Nonstandard packages require verification of mechanical fit.

Compliance: Both parts must maintain ROHS3 compliance and MSL Level 1 rating for supply chain and manufacturing compatibility.

The PA4303.274NLT from Pulse Electronics satisfies all substitution criteria and is classified as a direct equivalent.

Parameter Comparison

Engineering Selection Recommendations

The PA4303.274NLT qualifies as a direct functional equivalent to the CDRH124NP-271MC based on the following engineering criteria:

Electrical Equivalence: Both inductors maintain identical inductance values (270 µH) and tolerance specifications (±20%). The PA4303.274NLT provides superior electrical performance with lower DC resistance (741 mOhm versus 870 mOhm maximum) and higher current rating capacity (650 mA versus 600 mA), resulting in reduced power dissipation and improved thermal margin.

Thermal Performance: The PA4303.274NLT operates across an extended temperature range (-40°C to 125°C) compared to the CDRH124NP-271MC (-40°C to 100°C), providing additional thermal headroom for applications requiring higher ambient or component operating temperatures.

Compliance and Certification: Both parts maintain ROHS3 compliance and MSL Level 1 rating, ensuring compatibility with modern manufacturing processes and supply chain requirements. Both carry EAR99 export classification and identical HTSUS tariff codes.

Physical Considerations: The PA4303.274NLT exhibits slightly larger footprint dimensions (12.50mm × 12.50mm versus 12.00mm × 12.00mm) and increased seated height (5.00mm versus 4.50mm). PCB layout verification is required to confirm mechanical fit within the application's spatial constraints.

Product Status: Both components maintain Active product status, ensuring continued availability and manufacturing support.

Frequently Asked Questions (FAQ)

Q: Can the PA4303.274NLT be used as a direct replacement for the CDRH124NP-271MC?

A: The PA4303.274NLT is electrically equivalent and functionally compatible. Both inductors share identical inductance values (270 µH), tolerance specifications (±20%), shielding characteristics, and core material. The substitute part provides superior electrical performance with lower DC resistance and higher current rating. Physical dimensions require verification to confirm PCB layout compatibility.

Q: What are the key differences between these two inductors?

A: The primary differences are: (1) Current rating: PA4303.274NLT is rated for 650 mA versus 600 mA for the CDRH124NP-271MC; (2) DC resistance: PA4303.274NLT maximum is 741 mOhm versus 870 mOhm; (3) Operating temperature range: PA4303.274NLT extends to 125°C versus 100°C; (4) Physical dimensions: PA4303.274NLT is 12.50mm × 12.50mm × 5.00mm (max height) versus 12.00mm × 12.00mm × 4.50mm (max height).

Q: Will the larger physical dimensions of the PA4303.274NLT affect my PCB design?

A: The PA4303.274NLT footprint is 0.50mm larger in length and width, and 0.50mm taller in seated height. PCB layout must be reviewed to confirm adequate clearance and that component placement does not conflict with adjacent circuitry, solder mask patterns, or assembly equipment constraints.

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

A: The PA4303.274NLT operates to 125°C maximum, providing broader thermal coverage than the CDRH124NP-271MC (100°C maximum). For applications requiring sustained operation above 100°C, the PA4303.274NLT is the appropriate selection.

Q: Do both inductors meet RoHS and environmental compliance requirements?

A: Both the CDRH124NP-271MC and PA4303.274NLT are ROHS3 compliant. Both carry MSL Level 1 (Unlimited) moisture sensitivity rating and EAR99 export classification. Both are suitable for applications requiring environmental and regulatory compliance.

Q: What is the significance of the lower DC resistance in the PA4303.274NLT?

A: Lower DC resistance (741 mOhm versus 870 mOhm maximum) reduces resistive power dissipation (I²R losses) in the inductor. This results in lower operating temperature, improved efficiency, and extended component life, particularly in high-current or continuous-duty applications.

Q: Are there any frequency-dependent differences between these inductors?

A: The CDRH124NP-271MC inductance is tested at 100 kHz, while the PA4303.274NLT is tested at 1 kHz. Both inductors are ferrite-core shielded designs with similar frequency response characteristics. Application-specific frequency performance should be evaluated based on circuit operating frequency and impedance requirements.