CDR74BNP-151KC Equivalent & Substitute Parts

Part Overview

The CDR74BNP-151KC is a 150 µH shielded surface mount inductor manufactured by Sumida America Components Inc., rated for 440 mA continuous current with a maximum DC resistance of 940 mOhm. This component is classified as obsolete product status. Due to its obsolete classification and limited availability relative to active alternatives, identifying equivalent substitute parts is essential for ongoing design support, production continuity, and long-term supply chain management.

Substiute Parts

CDR74BNP-151KC

Sumida America Components Inc.In Stock: 805CDR74BNP-151KC Datasheet

Current PartRFQ

CDRH74NP-151MC-B

Sumida America Components Inc.In Stock: 6009CDRH74NP-151MC-B Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CDR74BNP-151KC is determined by the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

• Inductance value: 150 µH (exact match required)
• Inductance tolerance: ±10% or wider acceptable
• Current rating: minimum 440 mA
• DC resistance: 880 mOhm or lower
• Shielding: Shielded configuration required
• Core material: Ferrite
• Mounting type: Surface Mount
• Operating temperature range: must encompass or exceed -25°C to 80°C
• RoHS compliance: ROHS3 Compliant

The CDRH74NP-151MC-B meets all primary substitution criteria. It maintains the same inductance value, shielding type, core material, and mounting configuration. The substitute part demonstrates improved electrical performance with lower DC resistance (880 mOhm vs. 940 mOhm) and higher current rating (460 mA vs. 440 mA). The substitute part is classified as active product status with significantly higher inventory availability.

Parameter Comparison

Engineering Selection Recommendations

The CDRH74NP-151MC-B is a qualified substitute for the CDR74BNP-151KC based on the following engineering factors:

Electrical Compatibility: The substitute part maintains the same 150 µH inductance specification and ferrite shielded core configuration. The substitute demonstrates superior electrical performance with reduced DC resistance (880 mOhm maximum versus 940 mOhm) and increased current rating (460 mA versus 440 mA), providing improved thermal margin and reduced power dissipation in the application circuit.

Mechanical Compatibility: Both parts are surface mount inductors with nonstandard package dimensions. The substitute part features a slightly smaller footprint (7.30mm x 7.30mm versus 7.80mm x 7.00mm) and lower seated height (4.50mm versus 4.90mm), which may provide layout advantages in space-constrained applications.

Compliance and Availability: The substitute part is ROHS3 compliant and classified as active product status with 5,907 units in stock, compared to the obsolete main part with 750 units. The substitute part's active status ensures long-term supply chain continuity and manufacturing support.

Temperature Performance: The substitute part extends the operating temperature range to -40°C to 100°C, providing broader environmental operating capability compared to the main part's -25°C to 80°C range.

Frequently Asked Questions (FAQ)

Q: Can the CDRH74NP-151MC-B directly replace the CDR74BNP-151KC in existing designs?

A: Yes. Both parts maintain identical inductance values (150 µH), shielding configuration, core material (ferrite), and surface mount mounting type. The substitute part meets or exceeds all critical electrical parameters including current rating and DC resistance specifications. Mechanical footprints are similar with the substitute part featuring a slightly smaller profile.

Q: What is the difference in inductance tolerance between these parts?

A: The main part CDR74BNP-151KC specifies ±10% inductance tolerance, while the substitute CDRH74NP-151MC-B specifies ±20% tolerance. For applications requiring tighter inductance tolerance control, the main part specification is more stringent. However, both parts are tested at 1 kHz per standard measurement conditions.

Q: Are there packaging differences between these parts?

A: The main part CDR74BNP-151KC is supplied in standard packaging, while the substitute CDRH74NP-151MC-B is supplied in Tape & Reel (TR) format. Both parts have identical moisture sensitivity level (MSL 1 - Unlimited) and RoHS3 compliance. Tape & Reel packaging is standard for high-volume surface mount assembly operations.

Q: Why is the substitute part's DC resistance lower?

A: The CDRH74NP-151MC-B specifies a maximum DC resistance of 880 mOhm compared to 940 mOhm for the CDR74BNP-151KC. Lower DC resistance reduces resistive losses and heat generation in the inductor during operation, providing improved efficiency and thermal performance in the application circuit.

Q: What is the significance of the extended temperature range in the substitute part?

A: The substitute part operates from -40°C to 100°C compared to the main part's -25°C to 80°C range. This extended temperature capability provides design flexibility for applications requiring operation in wider environmental conditions or with higher ambient temperatures.

Q: Are both parts suitable for automated assembly?

A: Yes. Both parts are surface mount inductors designed for automated pick-and-place assembly. The substitute part's Tape & Reel packaging format is optimized for high-speed automated assembly lines and is the standard format for production environments.