CDR74BNP-560LC Equivalent & Substitute Parts

Part Overview

The CDR74BNP-560LC is a 56 µH shielded inductor manufactured by Sumida America Components Inc., rated for 760 mA continuous current with a maximum DC resistance of 290mOhm. This component is classified as obsolete, necessitating identification of active equivalent parts for ongoing design support and procurement continuity. The part features ferrite core construction, surface mount packaging, and operates across the temperature range of -25°C to 80°C. Due to its obsolete status, sourcing alternatives from the same manufacturer's active product lines is essential for new designs and production continuity.

Substiute Parts

CDR74BNP-560LC

Sumida America Components Inc.In Stock: 722CDR74BNP-560LC Datasheet

Current PartRFQ

CDRH74NP-560MC-B

Sumida America Components Inc.In Stock: 1942CDRH74NP-560MC-B Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the CDR74BNP-560LC is determined by the following critical electrical and mechanical parameters:

Primary Substitution Criteria:

• Inductance value: 56 µH (exact match required)
• Core material: Ferrite (shielded construction)
• Mounting type: Surface Mount
• Current rating: Minimum 750 mA (original part rated 760 mA)
• DC resistance: Maximum 350mOhm (original part 290mOhm maximum)
• Shielding: Shielded configuration
• RoHS compliance: ROHS3 Compliant
• Moisture sensitivity: MSL 1 (Unlimited)

The CDRH74NP-560MC-B meets these substitution criteria with the following considerations: it maintains the same 56 µH inductance and ferrite shielded construction, operates at 750 mA (within 1.3% of original rating), and features an extended operating temperature range of -40°C to 100°C. The DC resistance tolerance is higher at 350mOhm maximum compared to the original 290mOhm, which represents a 20.7% increase in maximum resistance. Both parts are surface mount, ROHS3 compliant, and carry MSL 1 rating.

Parameter Comparison

Engineering Selection Recommendations

The CDRH74NP-560MC-B is the designated substitute for the obsolete CDR74BNP-560LC based on the following engineering factors:

Compliance and Availability: The CDRH74NP-560MC-B maintains ROHS3 compliance and MSL 1 rating identical to the original part. As an active product from the same manufacturer, it ensures long-term procurement availability and supply chain continuity. The original CDR74BNP-560LC, classified as obsolete, presents sourcing risk for future production requirements.

Electrical Performance: Both inductors maintain the same 56 µH inductance value with ferrite shielded construction. The substitute's current rating of 750 mA represents a 1.3% reduction from the original 760 mA specification. The DC resistance maximum increases from 290mOhm to 350mOhm, a 20.7% increase. These electrical parameter variations must be evaluated within the context of the specific circuit application to determine acceptability.

Thermal and Environmental Characteristics: The CDRH74NP-560MC-B provides an extended operating temperature range of -40°C to 100°C compared to the original -25°C to 80°C range, offering improved performance in extreme temperature environments.

Physical Considerations: The substitute part features a different footprint (7.30mm x 7.30mm versus 7.80mm x 7.00mm) and reduced height (4.50mm versus 4.90mm). PCB layout verification is required to confirm compatibility with existing board designs.

Frequently Asked Questions (FAQ)

Q: Can the CDRH74NP-560MC-B be used as a direct replacement for the CDR74BNP-560LC?

A: The CDRH74NP-560MC-B is electrically compatible for applications where the 750 mA current rating and 350mOhm maximum DC resistance are acceptable. However, the different physical dimensions (footprint and height) require PCB layout verification before implementation.

Q: What is the significance of the 20.7% increase in DC resistance?

A: The increase from 290mOhm to 350mOhm maximum DC resistance affects power dissipation and thermal performance. In circuits where inductor losses are critical, this parameter change must be evaluated against application requirements. The actual DCR of individual parts may vary within the specified tolerance ranges.

Q: Why is the inductance tolerance wider on the substitute part?

A: The CDRH74NP-560MC-B specifies ±20% inductance tolerance compared to ±15% for the original part. This wider tolerance reflects the manufacturing specifications of the active product line. Circuit designs must accommodate this tolerance variation.

Q: Are there packaging differences between these parts?

A: The CDR74BNP-560LC is supplied in standard inventory format, while the CDRH74NP-560MC-B is available in Tape & Reel (TR) packaging. Both are surface mount components with nonstandard package designations. Verify packaging requirements for your procurement and assembly processes.

Q: What is the impact of the extended operating temperature range?

A: The CDRH74NP-560MC-B operates from -40°C to 100°C compared to the original -25°C to 80°C range. This extended range provides additional design margin for applications subject to extreme temperature conditions, though it does not affect compatibility in standard temperature environments.

Q: How do the physical dimensions affect PCB design?

A: The substitute part measures 7.30mm x 7.30mm with a maximum seated height of 4.50mm, compared to the original 7.80mm x 7.00mm footprint with 4.90mm height. These dimensional differences require PCB layout review to confirm clearance and placement compatibility with existing designs.

Q: Is the substitute part ROHS compliant?

A: Yes, the CDRH74NP-560MC-B is ROHS3 compliant, matching the compliance status of the original CDR74BNP-560LC. Both parts carry MSL 1 (Unlimited) moisture sensitivity rating.