CDRH125-100MC Equivalent & Substitute Parts Reference

Part Overview

The CDRH125-100MC is a 10 µH shielded surface mount inductor manufactured by Sumida America Components Inc., rated for 4 A continuous current with a maximum DC resistance of 25 mOhm. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing production support and design continuity. The part operates across a temperature range of -25°C to 80°C and is mounted in a nonstandard 12.00mm × 12.00mm package with a seated height of 6.00mm. Identification of compatible alternatives ensures supply chain reliability and design flexibility for applications requiring 10 µH inductance at 4 A current ratings.

Key Parameters

Parameter	Value	Unit	Substitution Relevance
Inductance	10	µH	Critical - must match exactly
Current Rating	4	A	Critical - minimum acceptable rating
DC Resistance (DCR)	25	mOhm Max	Critical - affects power dissipation
Shielding	Shielded	-	Critical - electromagnetic containment
Mounting Type	Surface Mount	-	Critical - PCB assembly compatibility
Package Size	12.00 × 12.00 × 6.00	mm	Important - footprint compatibility
Tolerance	±20%	-	Important - circuit performance margin
Operating Temperature	-25 to 80	°C	Important - thermal environment
RoHS Status	Non-compliant	-	Important - regulatory requirement

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict adherence to the following parameters:

Primary Matching Criteria (Non-negotiable):

Inductance value: 10 µH (±20% tolerance)
Shielding: Shielded configuration
Mounting type: Surface Mount
DC Resistance: 25 mOhm maximum

Secondary Matching Criteria (Acceptable Variation):

Current Rating: Minimum 4 A (higher ratings acceptable)
Package footprint: 12.00mm × 12.00mm nominal (minor dimensional variation acceptable within assembly constraints)
Operating temperature range: Must encompass application requirements

Compliance Considerations:

RoHS3 compliance preferred for new designs
REACH unaffected status maintained across all alternatives
ECCN and HTSUS classifications consistent

Substitute parts are grouped into two categories: Direct Equivalents (identical electrical and mechanical specifications with improved product status) and Similar Alternatives (matching core parameters with acceptable variations in current rating, DCR, or package dimensions).

Parameter Comparison

Part Number	Manufacturer	Inductance (µH)	Current Rating (A)	DCR (mOhm)	Shielding	Package Size (mm)	Height (mm)	Product Status	RoHS Status	Temp Range (°C)
CDRH125-100MC	Sumida	10	4.0	25 Max	Shielded	12.00 × 12.00	6.00	Obsolete	Non-compliant	-25 to 80
CDRH125NP-100MC	Sumida	10	4.0	25 Max	Shielded	12.00 × 12.00	6.00	Active	ROHS3 Compliant	-40 to 100
P1171.103NLT	Pulse Electronics	10	4.4	25 Max	Shielded	12.24 × 12.24	6.00	Active	ROHS3 Compliant	-40 to 130
PA4304.103NLT	Pulse Electronics	10	4.0	25 Max	Shielded	12.50 × 12.50	6.00	Active	ROHS3 Compliant	-40 to 125
B82477G2103M000	EPCOS - TDK Electronics	10	4.0	25 Max	Shielded	12.30 × 12.30	6.00	Active	ROHS3 Compliant	-55 to 125
DR125-100-R	Eaton - Electronics Division	10	5.35	18.9	Shielded	12.50 × 12.50	6.00	Active	ROHS3 Compliant	-40 to 125
P1170.103NLT	Pulse Electronics	10	4.4	25 Max	Shielded	12.24 × 12.24	6.00	Active	ROHS3 Compliant	-40 to 130
SLF12555T-100M3R4-PF	TDK Corporation	10	4.3	25.8 Max	Shielded	12.50 × 12.50	5.80	Not For New Designs	ROHS3 Compliant	-40 to 105

Engineering Selection Recommendations

Direct Equivalent (Recommended Primary Substitute):

CDRH125NP-100MC is the optimal replacement for CDRH125-100MC. This part maintains identical electrical specifications (10 µH, 4 A, 25 mOhm DCR) and mechanical footprint while offering active product status and ROHS3 compliance. The extended operating temperature range (-40°C to 100°C) provides improved thermal margin compared to the obsolete original. Packaging in Tape & Reel format supports automated assembly processes.

Active Alternatives (Acceptable Substitutes):

PA4304.103NLT and B82477G2103M000 provide equivalent electrical performance with ferrite drum core construction. Both maintain 10 µH inductance, 4 A current rating, and 25 mOhm maximum DCR. Package dimensions vary slightly (12.50mm and 12.30mm respectively) but remain compatible with standard 12.00mm footprint designs with minor PCB layout adjustment. Both are ROHS3 compliant and actively manufactured.

P1171.103NLT and P1170.103NLT offer higher current ratings (4.4 A) and extended temperature operation (-40°C to 130°C), suitable for applications requiring thermal headroom. DCR remains at 25 mOhm maximum. Package dimensions (12.24mm × 12.24mm) require verification against PCB layout constraints.

DR125-100-R provides superior current handling (5.35 A) and lower DCR (18.9 mOhm), reducing power dissipation in high-current applications. Package size (12.50mm × 12.50mm) requires footprint validation.

Not Recommended for New Designs:

SLF12555T-100M3R4-PF carries "Not For New Designs" status despite ROHS3 compliance. This designation indicates manufacturer discontinuation trajectory and should be avoided for new product development.

Frequently Asked Questions (FAQ)

Q: Can CDRH125NP-100MC directly replace CDRH125-100MC without PCB modification?

A: Yes. CDRH125NP-100MC maintains identical footprint (12.00mm × 12.00mm), height (6.00mm), and electrical specifications. No PCB layout changes are required. The part is a direct form-fit-function replacement with improved product status and compliance.

Q: What is the significance of the ±20% inductance tolerance?

A: The ±20% tolerance indicates that actual inductance values may range from 8 µH to 12 µH. This tolerance applies uniformly across all listed substitutes. Circuit designs must account for this variation in component selection and performance validation.

Q: Are the Pulse Electronics P1170.103NLT and P1171.103NLT interchangeable?

A: Both parts share identical electrical specifications (10 µH, 4.4 A, 25 mOhm DCR, ±20% tolerance) and package dimensions (12.24mm × 12.24mm). They are functionally equivalent and interchangeable from an electrical standpoint. Verify part availability and lead time for procurement decisions.

Q: How does the DR125-100-R differ in application suitability?

A: DR125-100-R provides higher current capacity (5.35 A vs. 4.0 A) and lower DC resistance (18.9 mOhm vs. 25 mOhm). These characteristics reduce power dissipation and thermal stress in high-current circuits. Package size (12.50mm × 12.50mm) requires PCB footprint verification before implementation.

Q: What packaging formats are available for production assembly?

A: CDRH125NP-100MC, PA4304.103NLT, B82477G2103M000, P1171.103NLT, P1170.103NLT, and SLF12555T-100M3R4-PF are supplied in Tape & Reel (TR) format, supporting automated pick-and-place assembly. Original CDRH125-100MC packaging format is not specified in available data.

Q: Are all substitutes ROHS3 compliant?

A: All active and recommended substitutes (CDRH125NP-100MC, P1171.103NLT, PA4304.103NLT, B82477G2103M000, DR125-100-R, P1170.103NLT) are ROHS3 compliant. The original CDRH125-100MC is RoHS non-compliant. SLF12555T-100M3R4-PF is ROHS3 compliant but carries "Not For New Designs" status.

Q: What is the maximum operating temperature for each substitute?

A: Operating temperature ranges vary: CDRH125NP-100MC (-40°C to 100°C), P1171.103NLT and P1170.103NLT (-40°C to 130°C), PA4304.103NLT and DR125-100-R (-40°C to 125°C), B82477G2103M000 (-55°C to 125°C), and SLF12555T-100M3R4-PF (-40°C to 105°C). Select based on application thermal requirements.

Q: Can package size variation affect circuit performance?

A: Package dimensions (12.00mm to 12.50mm) represent minor variations within standard SMD tolerances. Verify PCB footprint compatibility and trace routing clearances before substitution. Seated height remains consistent at 6.00mm across all alternatives, ensuring consistent assembly profile.

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