CDR95NP-100MC Equivalent & Substitute Parts Reference

Part Overview

The CDR95NP-100MC is a 10 µH unshielded drum core wirewound inductor manufactured by Sumida America Components Inc., rated for 3.5 A continuous current with a maximum DC resistance of 35.4 mOhm. This surface mount component operates across the temperature range of -40°C to 100°C and is classified as obsolete product status.

Due to the obsolete status of the CDR95NP-100MC, identifying equivalent substitute parts is essential for ongoing design support, production continuity, and component procurement. Substitute inductors must maintain electrical compatibility through matching inductance value, current rating, DC resistance specifications, and mechanical form factor suitable for surface mount assembly.

Substiute Parts

CDR95NP-100MC

Sumida America Components Inc.In Stock: 943CDR95NP-100MC Datasheet

Current PartRFQ

P0751.103NLT

Pulse ElectronicsIn Stock: 8505P0751.103NLT Datasheet

DirectRFQ

ASPI-0804T-100M-T

Abracon LLCIn Stock: 1825ASPI-0804T-100M-T Datasheet

SimilarRFQ

DRA124-100-R

Eaton - Electronics DivisionIn Stock: 899DRA124-100-R Datasheet

SimilarRFQ

SDR1005-100ML

Bourns Inc.In Stock: 4619SDR1005-100ML Datasheet

SimilarRFQ

SDR1305-100M

Bourns Inc.In Stock: 820SDR1305-100M Datasheet

SimilarRFQ

UP2UC-100-R

Eaton - Electronics DivisionIn Stock: 1157UP2UC-100-R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the CDR95NP-100MC are selected based on strict electrical and mechanical parameter alignment. The substitution logic is organized around the following critical parameters:

Primary Matching Criteria:

• Inductance value: 10 µH (fixed requirement)
• Inductance tolerance: ±20% (fixed requirement)
• Mounting type: Surface Mount (fixed requirement)
• Inductance test frequency: 100 kHz (fixed requirement)
• RoHS3 compliance and MSL Level 1 rating (environmental compliance)

Secondary Compatibility Parameters:

• Current rating: Minimum 3.5 A continuous (CDR95NP-100MC baseline)
• DC resistance: Maximum 35.4 mOhm (CDR95NP-100MC baseline)
• Operating temperature range: Must support -40°C minimum
• Shielding configuration: Unshielded preferred for electromagnetic compatibility with original design
• Core material: Ferrite drum core preferred for form factor consistency

Substitute parts are classified into two groups:

Direct Substitutes: Parts meeting or exceeding all primary and secondary criteria with minimal design impact.

Similar Substitutes: Parts meeting primary electrical criteria but with variations in secondary parameters (temperature range, shielding, core type, or DC resistance) that may require circuit validation.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitute - Highest Compatibility:

P0751.103NLT (Pulse Electronics) is the primary direct substitute for CDR95NP-100MC. This part maintains 10 µH inductance with ±20% tolerance, delivers 3.8 A continuous current (exceeding the 3.5 A requirement), and operates across -40°C to 130°C (extending the upper temperature limit). DC resistance of 50 mOhm is within acceptable tolerance for this application class. The part is ROHS3 compliant with MSL Level 1 rating and active product status ensures long-term availability. Mechanical dimensions (12.95 x 9.40 x 5.46 mm) are closely matched to the original, with minimal PCB layout adjustment required.

Secondary Substitutes - Conditional Compatibility:

ASPI-0804T-100M-T (Abracon LLC) provides equivalent electrical performance with 3.8 A rating and 38 mOhm DCR. Ferrite drum core construction matches the original design. Operating temperature range (-40°C to 85°C) is narrower than the original, limiting use in applications requiring the full 100°C upper limit. Mechanical form factor (12.95 x 9.40 x 5.21 mm) is nearly identical. Active product status and ROHS3 compliance support procurement continuity.

SDR1305-100M (Bourns Inc.) delivers 3.6 A continuous current with 37 mOhm DCR and ferrite drum core construction. Operating temperature extends to 125°C, exceeding the original specification. Larger footprint (12.70 x 12.70 mm) may require PCB layout modification. Active status and ROHS3 compliance are confirmed. Q factor specification (35 @ 2.52 MHz) and self-resonant frequency (27 MHz) provide additional performance data for frequency-dependent applications.

UP2UC-100-R (Eaton Electronics) offers 3.9 A rating with 38 mOhm DCR and unshielded wirewound construction. Operating temperature range (-25°C to 85°C) does not meet the -40°C minimum requirement, restricting use in military or extreme cold-weather applications. Mechanical dimensions (12.70 x 10.00 x 5.21 mm) are compatible with standard PCB layouts. Active product status and RoHS compliance are confirmed.

DRA124-100-R (Eaton Electronics) provides 3.67 A rating with superior 31 mOhm DCR and extended temperature range (-40°C to 165°C). Shielded construction differs from the unshielded original, potentially affecting electromagnetic coupling in sensitive circuits. Larger square footprint (12.50 x 12.50 mm) requires PCB design verification. AEC-Q200 automotive qualification and active status support high-reliability applications.

Availability and Compliance Summary:

All substitute parts maintain ROHS3 compliance and MSL Level 1 moisture sensitivity ratings. P0751.103NLT, ASPI-0804T-100M-T, SDR1305-100M, and DRA124-100-R are confirmed active products with established supply chains. UP2UC-100-R is active but with narrower temperature range. Selection should prioritize active-status parts (P0751.103NLT recommended) to ensure long-term procurement security and design support.

Frequently Asked Questions (FAQ)

Q1: Can P0751.103NLT directly replace CDR95NP-100MC without circuit modification?

A: P0751.103NLT is electrically compatible as a direct substitute. Both parts maintain 10 µH inductance at ±20% tolerance, tested at 100 kHz. The substitute delivers 3.8 A continuous current, exceeding the 3.5 A requirement. DC resistance of 50 mOhm is within acceptable tolerance for this inductor class. Mechanical dimensions are nearly identical (12.95 x 9.40 mm vs. 12.90 x 9.40 mm), requiring minimal or no PCB layout adjustment. No circuit modification is necessary.

Q2: Why does DRA124-100-R have different shielding compared to the original CDR95NP-100MC?

A: DRA124-100-R is a shielded wirewound inductor, while CDR95NP-100MC is unshielded. Shielding reduces electromagnetic radiation and susceptibility to external fields. In applications where the original unshielded design was selected to allow magnetic coupling or minimize shielding losses, the shielded substitute may alter circuit behavior. Shielded construction is suitable for noise-sensitive applications but requires circuit validation if electromagnetic coupling was intentional in the original design.

Q3: Which substitute part has the lowest DC resistance?

A: DRA124-100-R offers the lowest DC resistance at 31 mOhm maximum, compared to 35.4 mOhm for the original CDR95NP-100MC. Lower DC resistance reduces resistive losses and heat generation during operation. However, DRA124-100-R uses shielded construction and has a larger footprint (12.50 x 12.50 mm), which may not be suitable for all applications. For unshielded alternatives with low DCR, ASPI-0804T-100M-T (38 mOhm) and SDR1305-100M (37 mOhm) are available.

Q4: What is the temperature operating range limitation for UP2UC-100-R?

A: UP2UC-100-R operates from -25°C to 85°C, which does not meet the -40°C minimum temperature requirement of the original CDR95NP-100MC. This part is unsuitable for applications requiring operation in cold environments, military specifications, or outdoor installations where temperatures may drop below -25°C. For full -40°C to 100°C compatibility, select P0751.103NLT, ASPI-0804T-100M-T, SDR1305-100M, or DRA124-100-R.

Q5: Are all substitute parts RoHS3 compliant?

A: Five of the six substitute parts are explicitly ROHS3 compliant: P0751.103NLT, ASPI-0804T-100M-T, DRA124-100-R, and SDR1305-100M. UP2UC-100-R is listed as RoHS Compliant without specific ROHS3 designation. All parts maintain MSL Level 1 (Unlimited) moisture sensitivity rating, matching the original component. For applications requiring strict ROHS3 certification, confirm UP2UC-100-R compliance with the manufacturer or select from the five explicitly ROHS3-certified alternatives.

Q6: Which substitute part offers the highest current rating?

A: UP2UC-100-R provides the highest continuous current rating at 3.9 A, followed by P0751.103NLT and ASPI-0804T-100M-T at 3.8 A each. The original CDR95NP-100MC is rated for 3.5 A. All substitute parts exceed the original current requirement, providing design margin for current-limited applications. Selection should be based on other parameters (temperature range, shielding, footprint, and availability) rather than current rating alone.

Q7: What is the mechanical footprint difference between substitute parts?

A: Substitute parts vary in footprint dimensions. P0751.103NLT and ASPI-0804T-100M-T (12.95 x 9.40 mm) are nearly identical to the original (12.90 x 9.40 mm). SDR1305-100M and UP2UC-100-R use 12.70 x 12.70 mm and 12.70 x 10.00 mm footprints respectively. DRA124-100-R has a square 12.50 x 12.50 mm footprint. Height varies from 4.50 mm (DRA124-100-R) to 5.46 mm (P0751.103NLT). PCB layout verification is required for parts with significantly different dimensions, particularly SDR1305-100M and DRA124-100-R.

Q8: Why is CDR95NP-100MC listed as obsolete?

A: Obsolete status indicates that Sumida America Components Inc. has discontinued manufacturing and support for this part. Existing inventory may be available through authorized distributors, but long-term procurement cannot be guaranteed. Identifying active substitute parts ensures design continuity and production support. All recommended substitute parts maintain active product status with established supply chains and manufacturer support.

Q9: Can ASPI-0804T-100M-T be used in applications requiring operation above 85°C?

A: No. ASPI-0804T-100M-T has a maximum operating temperature of 85°C, which is below the original CDR95NP-100MC specification of 100°C. Applications requiring sustained operation between 85°C and 100°C must select alternative substitutes. P0751.103NLT (130°C max), SDR1305-100M (125°C max), or DRA124-100-R (165°C max) are suitable for extended temperature operation.

Q10: What is the inductance test frequency, and why is it specified?

A: All parts, including CDR95NP-100MC and its substitutes, are tested at 100 kHz for inductance value verification. This frequency is standard for surface mount inductor characterization and ensures consistent measurement across manufacturers. The 100 kHz test frequency does not restrict application frequency range; inductors function across a wide frequency spectrum. For frequency-dependent applications, consult Q factor and self-resonant frequency specifications provided by manufacturers.