CW252016-100J Equivalent & Substitute Parts

Part Overview

The CW252016-100J is a 10 µH unshielded drum core wirewound inductor manufactured by Bourns Inc., rated for 200 mA with 4.2Ω DC resistance in a 1008 (2520 Metric) surface mount package. This part is classified as obsolete, making identification of equivalent and substitute components essential for ongoing design support and procurement continuity. Substitute parts must maintain the same inductance value, package footprint, and core material while accommodating variations in current rating and DC resistance within acceptable operating parameters.

Substiute Parts

CW252016-100J

Bourns Inc.In Stock: 1165CW252016-100J Datasheet

Current PartRFQ

744758410A

Würth ElektronikIn Stock: 1900744758410A Datasheet

SimilarRFQ

IMC1008ER100J

Vishay DaleIn Stock: 1831IMC1008ER100J Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CW252016-100J are qualified based on the following criteria:

Mandatory Parameters (Must Match):

• Inductance: 10 µH
• Tolerance: ±5%
• Core Material: Ferrite
• Shielding: Unshielded
• Package / Case: 1008 (2520 Metric)
• Mounting Type: Surface Mount

Variable Parameters (Within Acceptable Range):

• Current Rating: Substitute parts must equal or exceed 200 mA
• DC Resistance: Substitute parts with lower DCR are acceptable; higher DCR requires circuit validation
• Operating Temperature: Substitute parts must support minimum -40°C ~ 125°C range or equivalent

Both identified substitutes meet all mandatory parameters. The 744758410A offers improved current handling (300 mA) and lower DCR (2.8Ω), while the IMC1008ER100J provides equivalent current rating (150 mA) with comparable DCR (4.6Ω) and extended temperature support.

Parameter Comparison

Engineering Selection Recommendations

744758410A (Würth Elektronik WE-RFH Series): This substitute provides superior electrical performance with 300 mA current rating and 2.8Ω maximum DCR, representing a 50% increase in current capacity and 33% reduction in resistance compared to the original part. The part is active and ROHS3 compliant. The operating temperature range of -40°C ~ 85°C is narrower than the original specification; applications requiring operation above 85°C must use alternative substitutes.

IMC1008ER100J (Vishay Dale IMC-1008 Series): This substitute maintains the original operating temperature range (-40°C ~ 125°C) and provides active product status with ROHS3 compliance. The 150 mA current rating is lower than the original 200 mA specification, requiring verification that circuit current demands do not exceed this limit. The 4.6Ω maximum DCR is comparable to the original 4.2Ω specification.

Frequently Asked Questions (FAQ)

Q: Can the 744758410A replace the CW252016-100J in all applications?

A: The 744758410A is electrically compatible for applications operating within -40°C to 85°C. Applications requiring operation above 85°C must use the IMC1008ER100J or verify thermal performance independently.

Q: What is the impact of lower DC resistance in the 744758410A?

A: Lower DCR (2.8Ω vs. 4.2Ω) reduces resistive losses and heat generation, improving efficiency. This is a beneficial characteristic for most applications and does not create compatibility issues.

Q: Can the IMC1008ER100J handle the same current as the original CW252016-100J?

A: The IMC1008ER100J is rated for 150 mA maximum, which is below the original 200 mA rating. Circuit current must not exceed 150 mA for this substitute.

Q: Are all substitutes compatible with the same PCB footprint?

A: All three parts use the 1008 (2520 Metric) package with surface mount configuration. Physical dimensions vary slightly; verify maximum height clearance: CW252016-100J (1.80mm), 744758410A (1.90mm), IMC1008ER100J (1.90mm).

Q: Do all parts meet RoHS and REACH compliance requirements?

A: Yes. All three parts are ROHS3 compliant and REACH unaffected, maintaining regulatory compliance for current manufacturing standards.