CDR95NP-1R0MC Equivalent & Substitute Parts

Part Overview

The CDR95NP-1R0MC is a 1 µH unshielded drum core wirewound inductor manufactured by Sumida America Components Inc., rated for 9 A continuous current with a maximum DC resistance of 6.3 mOhm. This component is classified as obsolete, making equivalent substitutes necessary for new designs and ongoing production requirements. The part operates across the temperature range of -40°C to 100°C and complies with RoHS3 standards with MSL 1 moisture sensitivity rating.

Substiute Parts

CDR95NP-1R0MC

Sumida America Components Inc.In Stock: 997CDR95NP-1R0MC Datasheet

Current PartRFQ

P0751.102NLT

Pulse ElectronicsIn Stock: 1967P0751.102NLT Datasheet

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SDR1005-1R0ML

Bourns Inc.In Stock: 2321SDR1005-1R0ML Datasheet

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SDR1806-1R0ML

Bourns Inc.In Stock: 946SDR1806-1R0ML Datasheet

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UP2B-1R0-R

Eaton - Electronics DivisionIn Stock: 2102UP2B-1R0-R Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CDR95NP-1R0MC is determined by the following critical parameters:

Primary Matching Criteria:

• Inductance value: 1 µH (exact match required)
• Inductance tolerance: ±20% (must match or be tighter)
• Shielding configuration: Unshielded (must match)
• Mounting type: Surface Mount (must match)
• RoHS3 compliance: Required
• MSL rating: 1 (Unlimited)

Secondary Compatibility Criteria:

• Current rating: Minimum 9 A (equal or greater acceptable)
• DC resistance: Maximum 6.3 mOhm (lower values acceptable)
• Operating temperature range: Must encompass -40°C minimum and 100°C maximum, or provide adequate coverage for application requirements
• Saturation current: Minimum 14.6 A (equal or greater acceptable)

All four substitute parts meet the primary matching criteria. Secondary parameters vary to accommodate different application requirements and thermal environments.

Parameter Comparison

Engineering Selection Recommendations

P0751.102NLT (Pulse Electronics)

This substitute is suitable for applications where the 9 A current rating of the original part is not a hard requirement. The P0751.102NLT provides a 6.8 A current rating with 10 mOhm maximum DC resistance. The extended operating temperature range to 130°C offers thermal margin beyond the original specification. This part is active in production with full RoHS3 compliance and MSL 1 rating. Selection of this part requires confirmation that the 6.8 A rating is adequate for the application circuit.

SDR1005-1R0ML (Bourns Inc.)

This substitute maintains the drum core wirewound construction with ferrite core material identical to the original part. The SDR1005-1R0ML provides 7.5 A current rating and 7 mOhm maximum DC resistance, representing a moderate performance level. Operating temperature range extends to 125°C. This part is active in production with full RoHS3 compliance and MSL 1 rating. The SDR1005 series is widely available with established supply chain presence.

SDR1806-1R0ML (Bourns Inc.)

This substitute offers the highest current rating at 10 A with the lowest DC resistance at 4 mOhm maximum, providing superior electrical performance. The SDR1806-1R0ML features a saturation current of 30 A, significantly exceeding the original part's 14.6 A specification. Operating temperature range extends to 125°C. This part is active in production with full RoHS3 compliance and MSL 1 rating. Physical dimensions are larger (0.720" L x 0.551" W x 0.272" H) compared to the original part, requiring PCB layout verification.

UP2B-1R0-R (Eaton - Electronics Division)

This substitute provides 9.3 A current rating and 6.5 mOhm maximum DC resistance, closely matching the original part's electrical specifications. The UNI-PAC™ series construction maintains drum core wirewound design with ferrite core. Operating temperature range extends to 85°C, which is lower than the original specification. This part is active in production with full RoHS3 compliance and MSL 1 rating. Selection of this part requires confirmation that the 85°C maximum operating temperature is adequate for the application environment.

Frequently Asked Questions (FAQ)

Q: Can I use P0751.102NLT as a direct replacement for CDR95NP-1R0MC?

A: P0751.102NLT is electrically compatible for applications where the 6.8 A current rating is sufficient. The part shares identical inductance (1 µH), tolerance (±20%), shielding (unshielded), and mounting type (surface mount). However, the lower current rating and higher DC resistance (10 mOhm vs. 6.3 mOhm) must be evaluated against circuit requirements. The extended temperature range to 130°C provides additional thermal margin.

Q: What is the key difference between SDR1005-1R0ML and SDR1806-1R0ML?

A: Both parts are Bourns drum core wirewound inductors with 1 µH inductance and ferrite cores. The SDR1806-1R0ML provides superior electrical performance with 10 A current rating versus 7.5 A, 4 mOhm DC resistance versus 7 mOhm, and 30 A saturation current versus 9 A. The trade-off is larger physical dimensions (0.720" L x 0.551" W vs. 0.500" L x 0.394" W), which may impact PCB layout.

Q: Why does UP2B-1R0-R have a lower maximum operating temperature than the original part?

A: The UP2B-1R0-R from Eaton's UNI-PAC™ series is specified for -40°C to 85°C operation, compared to the original CDR95NP-1R0MC specification of -40°C to 100°C. This reflects the thermal design of the specific component. Applications requiring operation above 85°C must use alternative substitutes such as SDR1005-1R0ML, SDR1806-1R0ML, or P0751.102NLT, all rated to 125°C or higher.

Q: Are all substitute parts available in Tape & Reel packaging?

A: Yes, all four substitute parts are supplied in Tape & Reel (TR) packaging, which is standard for automated assembly processes. The original CDR95NP-1R0MC is listed with nonstandard packaging. Tape & Reel packaging is compatible with standard pick-and-place equipment used in surface mount assembly.

Q: Do all substitutes meet RoHS3 and MSL requirements?

A: All four substitute parts are RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the original part's compliance profile. This ensures compatibility with modern manufacturing standards and supply chain requirements.

Q: Which substitute has the lowest DC resistance?

A: SDR1806-1R0ML provides the lowest maximum DC resistance at 4 mOhm, compared to 6.3 mOhm for the original part. This represents a 37% reduction in resistance, which reduces power dissipation and heat generation in the inductor. However, this part has larger physical dimensions requiring PCB layout verification.

Q: Can I use SDR1806-1R0ML in a space-constrained application?

A: SDR1806-1R0ML has larger dimensions (0.720" L x 0.551" W x 0.272" H) compared to the original CDR95NP-1R0MC (0.508" L x 0.370" W x 0.205" H). Space-constrained applications should use SDR1005-1R0ML or UP2B-1R0-R, which have more compact form factors closer to the original part's dimensions.