CDH74NP-101JC Equivalent & Substitute Parts

Part Overview

The CDH74NP-101JC is a 100 µH unshielded drum core wirewound inductor manufactured by Sumida America Components Inc. This surface mount component is rated for 810 mA continuous current with a maximum DC resistance of 550 mOhm. The part is active in production status and ROHS3 compliant, making it suitable for modern electronic applications requiring fixed inductance in compact form factors.

Substitute parts are identified when equivalent inductance values, compatible mounting types, and acceptable electrical performance parameters align with application requirements. The primary substitute identified is the SDR7045-101K from Bourns Inc., which shares the same inductance specification and surface mount packaging.

Substiute Parts

CDH74NP-101JC

Sumida America Components Inc.In Stock: 1137CDH74NP-101JC Datasheet

Current PartRFQ

SDR7045-101K

Bourns Inc.In Stock: 1903SDR7045-101K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CDH74NP-101JC is determined by the following critical parameters:

Primary Substitution Criteria:

• Inductance value: 100 µH (exact match required)
• Mounting type: Surface Mount (nonstandard package)
• Core type: Ferrite, unshielded drum core wirewound construction
• Current rating: Must support minimum 810 mA continuous operation
• DC resistance: Lower or equal values acceptable; higher values require application verification
• Compliance: ROHS3 compliant status required for regulatory alignment

The SDR7045-101K meets these criteria with identical inductance and mounting configuration. Variations in tolerance, DC resistance, and temperature range are documented for engineering evaluation within specific circuit requirements.

Parameter Comparison

Engineering Selection Recommendations

CDH74NP-101JC Selection Criteria:

• Applications requiring 810 mA continuous current capacity
• Designs with strict inductance tolerance requirements (±5%)
• Circuits operating within -40°C to 100°C temperature range
• PCB layouts with available space for 8.00mm x 7.30mm footprint
• Active production status ensures supply chain continuity

SDR7045-101K Selection Criteria:

• Applications with current requirements up to 750 mA
• Designs tolerating ±10% inductance variation
• Circuits benefiting from extended temperature operation (-40°C to 125°C)
• Space-constrained layouts requiring 7.00mm x 7.00mm footprint
• Lower DC resistance (430 mOhm) reduces power dissipation in current paths
• Active production status with established supply availability

Both parts maintain ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1), supporting modern manufacturing and environmental standards.

Frequently Asked Questions (FAQ)

Q: Can SDR7045-101K replace CDH74NP-101JC in all applications?

A: Substitution depends on circuit current requirements. The SDR7045-101K is rated for 750 mA maximum continuous current, compared to 810 mA for the CDH74NP-101JC. Applications drawing sustained current above 750 mA require the main part. The substitute is suitable for circuits operating at or below 750 mA.

Q: What is the impact of different DC resistance values?

A: The SDR7045-101K has 430 mOhm maximum DCR versus 550 mOhm for the CDH74NP-101JC. Lower resistance reduces power dissipation and heat generation. Applications sensitive to inductor losses benefit from the substitute's lower resistance specification.

Q: Are there PCB layout considerations for substitution?

A: Yes. The SDR7045-101K occupies a smaller footprint (7.00mm x 7.00mm) and lower profile (4.80mm height) compared to the CDH74NP-101JC (8.00mm x 7.30mm, 5.20mm height). Verify PCB pad spacing and component clearance before substitution. The smaller package may allow improved board density.

Q: How do inductance tolerance differences affect circuit performance?

A: The CDH74NP-101JC specifies ±5% tolerance versus ±10% for the SDR7045-101K. Circuits with tight inductance requirements (filters, resonant circuits, impedance matching) may require the tighter tolerance of the main part. General-purpose applications typically tolerate ±10% variation.

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

A: The SDR7045-101K operates to 125°C maximum, exceeding the CDH74NP-101JC specification of 100°C. For applications requiring sustained operation above 100°C, the substitute provides extended thermal capability.

Q: What compliance certifications apply to both parts?

A: Both CDH74NP-101JC and SDR7045-101K are ROHS3 compliant and carry MSL 1 (unlimited) moisture sensitivity rating. Both are classified under ECCN EAR99 and HTSUS 8504.50.4000 for regulatory and trade purposes.