CDRH127-100MC Equivalent & Substitute Parts Reference

Part Overview

The CDRH127-100MC is a 10 µH shielded surface mount inductor manufactured by Sumida America Components Inc., rated for 5.4 A continuous current with a maximum DC resistance of 21.6 mOhm. This component operates across the temperature range of -40°C to 100°C and is specified at 1 kHz inductance frequency testing.

The CDRH127-100MC carries an obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this inductor specification.

Substiute Parts

CDRH127-100MC

Sumida America Components Inc.In Stock: 1684CDRH127-100MC Datasheet

Current PartRFQ

CDRH127NP-100MC

Sumida America Components Inc.In Stock: 23193CDRH127NP-100MC Datasheet

DirectRFQ

P1173.103NLT

Pulse ElectronicsIn Stock: 892P1173.103NLT Datasheet

DirectRFQ

DR127-100-R

Eaton - Electronics DivisionIn Stock: 1426DR127-100-R Datasheet

SimilarRFQ

P1172.103NLT

Pulse ElectronicsIn Stock: 9264P1172.103NLT Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CDRH127-100MC is determined by the following critical parameters:

Primary Matching Criteria:

• Inductance value: 10 µH (±20% tolerance)
• Shielding requirement: Shielded construction
• Mounting type: Surface Mount
• Package footprint compatibility: 12.00mm × 12.00mm base dimensions with 8.00mm maximum seated height
• DC resistance: Maximum 21.6 mOhm (allows lower resistance values)
• Current rating: Minimum 5.4 A continuous
• Operating temperature: Minimum -40°C to 100°C range support
• Moisture sensitivity: MSL 1 classification

Substitution Classification:

Direct Equivalent: CDRH127NP-100MC (Sumida America Components Inc.) — Identical electrical and mechanical specifications with active product status and improved RoHS3 compliance.

Compatible Substitutes: P1173.103NLT and P1172.103NLT (Pulse Electronics) — Meet all critical electrical parameters with extended operating temperature range (-40°C to 130°C) and higher inductance test frequency (100 kHz). Slight dimensional variation within acceptable tolerance.

Similar Alternative: DR127-100-R (Eaton - Electronics Division) — Exceeds current rating (6.04 A) and provides lower DC resistance (17.2 mOhm) with ferrite drum core construction, supporting higher saturation current (11.2 A).

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Recommended Primary Choice):

CDRH127NP-100MC is the optimal substitute for CDRH127-100MC. This part maintains identical electrical specifications (10 µH, 5.4 A, 21.6 mOhm) and mechanical dimensions while offering active product status and ROHS3 compliance. Current inventory of 23,083 units ensures supply continuity. Selection of this part eliminates design modification requirements and maintains full functional equivalence.

For Extended Temperature Applications:

P1173.103NLT or P1172.103NLT (Pulse Electronics) provide extended operating temperature range to 130°C, supporting applications requiring higher thermal performance. Current rating of 5.2 A and DC resistance of 21.8 mOhm remain within acceptable tolerance of the original specification. Slight dimensional increase (12.24mm × 12.24mm) requires PCB layout verification for footprint compatibility. Both parts carry ROHS3 compliance and active product status.

For Enhanced Current Capacity Applications:

DR127-100-R (Eaton) delivers superior current handling (6.04 A) and reduced DC resistance (17.2 mOhm), providing performance margin for designs approaching the 5.4 A rating limit. Ferrite drum core construction with 11.2 A saturation current supports transient current conditions. Dimensional increase to 12.50mm × 12.50mm requires PCB layout confirmation. ROHS3 compliance and active status support long-term availability.

Compliance Considerations:

All substitute parts carry ROHS3 compliance and REACH unaffected status, supporting regulatory requirements for new designs. The obsolete CDRH127-100MC should be replaced in active production designs to ensure supply chain sustainability and regulatory alignment.

Frequently Asked Questions (FAQ)

Q: Can CDRH127NP-100MC be used as a direct drop-in replacement for CDRH127-100MC?

A: Yes. CDRH127NP-100MC is electrically and mechanically identical to CDRH127-100MC, with identical inductance (10 µH), current rating (5.4 A), DC resistance (21.6 mOhm), and package dimensions (12.00mm × 12.00mm × 8.00mm). No circuit or PCB modifications are required. The primary difference is active product status and ROHS3 compliance.

Q: What is the significance of the current rating difference between CDRH127-100MC (5.4 A) and DR127-100-R (6.04 A)?

A: The current rating represents the maximum continuous current the inductor can carry without exceeding temperature rise limits. DR127-100-R's higher rating (6.04 A) provides additional thermal margin but does not affect substitution validity for applications operating at or below 5.4 A. For applications approaching the 5.4 A limit, DR127-100-R offers performance headroom.

Q: Are the Pulse Electronics parts (P1173.103NLT and P1172.103NLT) interchangeable with each other?

A: Yes. P1173.103NLT and P1172.103NLT share identical electrical specifications (10 µH, 5.2 A, 21.8 mOhm) and mechanical dimensions (12.24mm × 12.24mm × 8.00mm). Both are wirewound shielded inductors with 20 MHz self-resonant frequency and 100 kHz inductance test frequency. Selection between them depends on inventory availability and packaging preference (both available in Tape & Reel format).

Q: What PCB layout considerations apply when substituting with parts having different package dimensions?

A: P1173.103NLT, P1172.103NLT (12.24mm × 12.24mm), and DR127-100-R (12.50mm × 12.50mm) have larger footprints than the original CDRH127-100MC (12.00mm × 12.00mm). PCB layout verification is required to confirm adequate clearance from adjacent components, trace routing, and thermal management areas. Height remains constant at 8.00mm maximum for all parts.

Q: Does the extended operating temperature range of Pulse Electronics parts affect circuit performance?

A: The extended range (-40°C to 130°C versus -40°C to 100°C) represents improved thermal capability but does not alter electrical performance within the original operating range. Applications limited to -40°C to 100°C operation experience no performance change. Applications requiring operation above 100°C benefit from the extended range without circuit modification.

Q: What is the impact of DC resistance variation (17.2 mOhm to 21.8 mOhm) on circuit operation?

A: DC resistance affects power dissipation and voltage drop across the inductor. Lower resistance (DR127-100-R at 17.2 mOhm) reduces losses and heat generation. Higher resistance (P1173.103NLT and P1172.103NLT at 21.8 mOhm) increases losses marginally. For applications sensitive to inductor losses, DR127-100-R provides superior efficiency. For standard applications, all values remain within acceptable tolerance.

Q: Why is CDRH127-100MC marked as obsolete, and what is the recommended action?

A: Obsolete status indicates the manufacturer has discontinued production. CDRH127NP-100MC (active status) is the direct replacement from the same manufacturer. For new designs or production continuity, transition to CDRH127NP-100MC or alternative active parts to ensure long-term supply availability and regulatory compliance.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. CDRH127NP-100MC, P1173.103NLT, P1172.103NLT, and DR127-100-R all carry ROHS3 compliance certification. The original CDRH127-100MC is RoHS non-compliant. Substitution with any of these parts satisfies RoHS3 regulatory requirements for new designs and production.