CDR74BNP-180MC Equivalent & Substitute Parts

Part Overview

The CDR74BNP-180MC is an 18 µH shielded surface mount inductor manufactured by Sumida America Components Inc. This component is rated for 1.29 A maximum current with a DC resistance of 100mOhm maximum and operates across a temperature range of -25°C to 80°C. The part is classified as obsolete, necessitating identification of active equivalent components for new designs and ongoing production requirements. Substitute parts must maintain electrical performance within the specified inductance, current rating, and resistance parameters while meeting modern compliance standards.

Substiute Parts

CDR74BNP-180MC

Sumida America Components Inc.In Stock: 920CDR74BNP-180MC Datasheet

Current PartRFQ

CDRH74NP-180MC-B

Sumida America Components Inc.In Stock: 64284CDRH74NP-180MC-B Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CDR74BNP-180MC is based on the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

• Inductance value: 18 µH (within ±20% tolerance band)
• Current rating: minimum 1.29 A
• DC resistance: maximum 100mOhm
• Shielding: shielded construction required
• Core material: ferrite
• Mounting: surface mount configuration
• Compliance: ROHS3 compliant

The CDRH74NP-180MC-B meets all substitution criteria with improved electrical characteristics and active product status. This part maintains the same inductance specification, exceeds the current rating requirement (1.31 A vs. 1.29 A), and provides lower DC resistance (91mOhm vs. 100mOhm maximum). Both components utilize ferrite cores, shielded construction, and surface mount packaging.

Parameter Comparison

Engineering Selection Recommendations

The CDRH74NP-180MC-B is the qualified substitute for the obsolete CDR74BNP-180MC based on the following engineering factors:

Electrical Compatibility: Both components maintain identical inductance values (18 µH) and tolerance specifications (±20%). The substitute part exceeds the current rating requirement by 0.02 A (1.31 A vs. 1.29 A) and provides superior DC resistance performance at 91mOhm maximum compared to the original 100mOhm maximum specification. These characteristics ensure the substitute will perform within or exceed the original design parameters.

Compliance and Availability: The CDRH74NP-180MC-B holds active product status with 64,201 units in stock, compared to the obsolete CDR74BNP-180MC with limited remaining inventory (851 units). Both components are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity ratings, meeting current regulatory requirements.

Thermal Performance: The substitute part extends the operating temperature range to -40°C to 100°C, providing broader environmental coverage compared to the original -25°C to 80°C specification.

Physical Considerations: The substitute part features a slightly smaller footprint (7.30mm x 7.30mm vs. 7.80mm x 7.00mm) and lower profile height (4.50mm vs. 4.90mm). PCB layout verification is required to confirm compatibility with existing board designs, particularly regarding component spacing and clearance requirements.

Frequently Asked Questions (FAQ)

Q: Can the CDRH74NP-180MC-B directly replace the CDR74BNP-180MC in existing designs?

A: The CDRH74NP-180MC-B meets all electrical specifications for substitution. However, physical dimensions differ slightly. The substitute is smaller in footprint and lower in profile. PCB layout review is necessary to confirm pad alignment and clearance compatibility before implementation.

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

A: Both parts maintain 18 µH inductance with ±20% tolerance. The substitute provides improved performance with 1.31 A current rating (vs. 1.29 A) and lower DC resistance at 91mOhm maximum (vs. 100mOhm maximum). These differences favor the substitute part for thermal and efficiency considerations.

Q: Why is the CDR74BNP-180MC classified as obsolete?

A: The CDR74BNP-180MC is obsolete due to manufacturer discontinuation. The CDRH74NP-180MC-B represents the active equivalent in Sumida's current product portfolio, offering improved specifications and ongoing manufacturing support.

Q: Are there packaging differences between these parts?

A: The CDR74BNP-180MC is supplied in standard packaging, while the CDRH74NP-180MC-B is available in Tape & Reel (TR) format. Both maintain MSL 1 (Unlimited) moisture sensitivity ratings. Tape & Reel packaging is standard for high-volume surface mount assembly operations.

Q: What is the inductance frequency test difference between these parts?

A: The CDR74BNP-180MC specifies inductance frequency testing at 2.52 MHz, while the CDRH74NP-180MC-B uses 1 kHz testing. Both measurements are valid characterization methods; the difference reflects manufacturer test methodology rather than performance variation.

Q: Do both parts meet current compliance standards?

A: Yes. Both the CDR74BNP-180MC and CDRH74NP-180MC-B are ROHS3 compliant and carry EAR99 ECCN classification. The substitute part is actively manufactured and fully compliant with current regulatory requirements.