CDRH124NP-121MC Equivalent & Substitute Parts

Part Overview

The CDRH124NP-121MC is a 120 µH shielded surface mount inductor manufactured by Sumida America Components Inc. This fixed inductor is rated for 1.1 A continuous current with a maximum DC resistance of 380mOhm and operates across the temperature range of -40°C to 100°C. The component is classified as Active product status and carries ROHS3 compliance certification.

Equivalent and substitute parts are identified when design requirements necessitate alternative sourcing due to inventory constraints, supply chain disruptions, or when specific performance characteristics of alternative manufacturers better suit application requirements while maintaining functional compatibility within the 120 µH inductance specification.

Substiute Parts

CDRH124NP-121MC

Sumida America Components Inc.In Stock: 1070CDRH124NP-121MC Datasheet

Current PartRFQ

P1168.124NLT

Pulse ElectronicsIn Stock: 2725P1168.124NLT Datasheet

DirectRFQ

SRR1240-121K

Bourns Inc.In Stock: 2102SRR1240-121K Datasheet

DirectRFQ

DR124-121-R

Eaton - Electronics DivisionIn Stock: 745DR124-121-R Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CDRH124NP-121MC is determined by strict adherence to the following critical parameters:

Primary Substitution Criteria:

• Inductance value: 120 µH (fixed requirement)
• Inductance tolerance: ±20% maximum deviation permitted
• Current rating: minimum 1.1 A
• DC resistance: maximum 380mOhm
• Shielding: Shielded configuration required
• Mounting type: Surface Mount only
• Package height: 4.50mm seated maximum
• Operating temperature range: minimum -40°C to 100°C coverage
• RoHS compliance: ROHS3 Compliant

All substitute parts listed maintain the 120 µH inductance specification at 100 kHz test frequency. Substitute parts are classified as either Direct Manufacturer equivalents (functionally interchangeable with identical or superior electrical characteristics) or Similar parts (meeting all critical parameters with minor variations in secondary characteristics).

Parameter Comparison

Engineering Selection Recommendations

P1168.124NLT (Pulse Electronics) - Direct Manufacturer Equivalent

The P1168.124NLT qualifies as a direct substitute with superior DC resistance performance at 316mOhm maximum, representing a 16.8% improvement over the CDRH124NP-121MC specification. This part maintains identical current rating (1.1 A) and package height (4.50mm). Extended operating temperature range to 130°C provides additional thermal margin. Self-resonant frequency specification of 5.5MHz is provided. Product status is Active with ROHS3 compliance and MSL 1 rating. Inventory availability is 2673 pieces.

SRR1240-121K (Bourns Inc.) - Direct Manufacturer Equivalent

The SRR1240-121K exceeds minimum substitution criteria with 1.2 A current rating (9.1% above requirement) and tighter inductance tolerance of ±10% versus ±20%. DC resistance of 370mOhm remains within specification. This drum core wirewound construction provides Q factor specification of 12 @ 796kHz and self-resonant frequency of 7.8MHz. Operating temperature range extends to 125°C. Product status is Active with ROHS3 compliance. Inventory availability is 2013 pieces.

DR124-121-R (Eaton - Electronics Division) - Similar Equivalent

The DR124-121-R meets all critical substitution parameters with 1.3 A current rating (18.2% above requirement) and DC resistance of 373.4mOhm. Inductance tolerance remains at ±20%. Operating temperature range extends to 125°C. Drum core wirewound construction with ferrite core material. Product status is Active with ROHS3 compliance. Inventory availability is 688 pieces.

All substitute parts maintain ROHS3 compliance, MSL 1 rating, and surface mount configuration. Selection among equivalents should be based on specific application requirements for current margin, temperature operating range, and DC resistance performance characteristics.

Frequently Asked Questions (FAQ)

Q: Can P1168.124NLT replace CDRH124NP-121MC in all applications?

A: Yes. The P1168.124NLT maintains the 120 µH inductance specification, 1.1 A current rating, and 4.50mm package height. Superior DC resistance (316mOhm vs 380mOhm) and extended temperature range to 130°C provide equivalent or improved performance. Both parts are ROHS3 compliant with MSL 1 rating.

Q: What is the difference between the Bourns SRR1240-121K and Sumida CDRH124NP-121MC?

A: The SRR1240-121K provides higher current rating (1.2 A vs 1.1 A), tighter inductance tolerance (±10% vs ±20%), and lower DC resistance (370mOhm vs 380mOhm). Operating temperature extends to 125°C versus 100°C. Both maintain 120 µH inductance and 4.50mm height. The Bourns part includes Q factor and self-resonant frequency specifications.

Q: Are all substitute parts identical in physical dimensions?

A: Package height is identical at 4.50mm seated maximum for all parts. Lateral dimensions vary slightly: CDRH124NP-121MC is 12.00mm x 12.00mm, P1168.124NLT is 12.24mm x 12.24mm, and both SRR1240-121K and DR124-121-R are 12.50mm x 12.50mm. All are classified as Nonstandard package type. PCB layout verification is required when substituting.

Q: Which substitute part has the lowest DC resistance?

A: The P1168.124NLT from Pulse Electronics has the lowest maximum DC resistance at 316mOhm, compared to 370mOhm (Bourns), 373.4mOhm (Eaton), and 380mOhm (Sumida original). Lower DC resistance reduces power dissipation in current-limited applications.

Q: Do all parts meet the same compliance standards?

A: Yes. All four parts are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level. Packaging is Tape & Reel (TR) for all parts. ECCN classification is EAR99 for all parts except SRR1240-121K which carries HTSUS 8504.50.8000 versus 8504.50.4000 for others.

Q: What is the minimum current rating required for substitution?

A: The CDRH124NP-121MC specifies 1.1 A minimum. All substitute parts meet or exceed this requirement: P1168.124NLT (1.1 A), SRR1240-121K (1.2 A), and DR124-121-R (1.3 A).

Q: Can these parts be used in temperature extremes?

A: The CDRH124NP-121MC operates -40°C to 100°C. Substitute parts extend this range: P1168.124NLT to 130°C, SRR1240-121K to 125°C, and DR124-121-R to 125°C. Application requirements must be verified against the specific operating temperature range needed.