CDR105-180MC Equivalent & Substitute Parts

Part Overview

The CDR105-180MC is a 18 µH shielded surface mount inductor manufactured by Sumida America Components Inc. with a rated current of 1.89 A and maximum DC resistance of 80mOhm. This component is classified as obsolete product status. Due to its obsolete classification, locating equivalent substitute parts with identical electrical and mechanical specifications is necessary for ongoing design support and production continuity.

Key Parameters

Parameter	Value
Inductance	18 µH
Inductance Tolerance	-15%, +20%
Current Rating	1.89 A
DC Resistance (DCR)	80mOhm Max
Shielding	Shielded
Frequency - Self Resonant	26MHz
Inductance Frequency - Test	2.52 MHz
Mounting Type	Surface Mount
Size / Dimension	0.394" L x 0.362" W (10.00mm x 9.20mm)
Height - Seated (Max)	0.217" (5.50mm)
Moisture Sensitivity Level (MSL)	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the CDR105-180MC is based on strict equivalence across the following critical parameters:

Electrical Parameters:

Inductance value: 18 µH
Inductance tolerance: -15%, +20%
Current rating: 1.89 A
DC resistance: 80mOhm Max
Self-resonant frequency: 26MHz
Test frequency: 2.52 MHz

Mechanical Parameters:

Shielding type: Shielded
Mounting type: Surface Mount
Physical dimensions: 0.394" L x 0.362" W (10.00mm x 9.20mm)
Maximum seated height: 0.217" (5.50mm)

Environmental Parameters:

Moisture sensitivity level: 1 (Unlimited)

The substitute part CDR105NP-180MC matches all electrical and mechanical specifications. Differences exist only in product status, operating temperature range, RoHS compliance, and packaging format.

Parameter Comparison

Parameter	CDR105-180MC	CDR105NP-180MC	Match Status
Manufacturer	Sumida America Components Inc.	Sumida America Components Inc.	Identical
Series	CDR105	CDR105	Identical
Inductance	18 µH	18 µH	Identical
Inductance Tolerance	-15%, +20%	-15%, +20%	Identical
Current Rating (Amps)	1.89 A	1.89 A	Identical
DC Resistance (DCR)	80mOhm Max	80mOhm Max	Identical
Shielding	Shielded	Shielded	Identical
Frequency - Self Resonant	26MHz	26MHz	Identical
Inductance Frequency - Test	2.52 MHz	2.52 MHz	Identical
Mounting Type	Surface Mount	Surface Mount	Identical
Size / Dimension	0.394" L x 0.362" W (10.00mm x 9.20mm)	0.394" L x 0.362" W (10.00mm x 9.20mm)	Identical
Height - Seated (Max)	0.217" (5.50mm)	0.217" (5.50mm)	Identical
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	Identical
Product Status	Obsolete	Active	Different
Operating Temperature	-25°C ~ 70°C	-40°C ~ 100°C	Different
RoHS Status	RoHS non-compliant	ROHS3 Compliant	Different
Packaging	-	Tape & Reel (TR)	Different

Engineering Selection Recommendations

The CDR105NP-180MC is the direct substitute for the obsolete CDR105-180MC based on complete electrical and mechanical parameter equivalence within the CDR105 series.

Selection Basis:

The CDR105NP-180MC provides identical inductance (18 µH), current rating (1.89 A), DC resistance (80mOhm Max), shielding configuration, and physical dimensions. All critical performance parameters match the original specification.

Compliance Advantages:

The CDR105NP-180MC holds active product status and ROHS3 compliance, addressing regulatory requirements for new production. The extended operating temperature range (-40°C ~ 100°C) compared to the original part (-25°C ~ 70°C) provides broader thermal operating capability.

Packaging Consideration:

The CDR105NP-180MC is supplied in Tape & Reel (TR) format, which is standard for automated assembly processes. This packaging format differs from the original part but is compatible with standard surface mount assembly equipment.

Frequently Asked Questions (FAQ)

Q: Can CDR105NP-180MC be used as a direct replacement for CDR105-180MC in existing designs?

A: Yes. The CDR105NP-180MC matches all electrical specifications (18 µH inductance, 1.89 A current rating, 80mOhm DCR) and mechanical dimensions (10.00mm x 9.20mm x 5.50mm max height) of the CDR105-180MC. Physical footprint and electrical performance are identical.

Q: What is the difference between CDR105-180MC and CDR105NP-180MC?

A: The parts are electrically and mechanically equivalent. Differences include: CDR105NP-180MC has active product status versus obsolete status; extended operating temperature range (-40°C to 100°C versus -25°C to 70°C); ROHS3 compliance versus non-compliant; and Tape & Reel packaging versus standard packaging.

Q: Is the Tape & Reel packaging compatible with standard assembly equipment?

A: Yes. Tape & Reel (TR) is the standard packaging format for automated surface mount assembly. The CDR105NP-180MC in TR format is compatible with conventional pick-and-place equipment and reflow soldering processes.

Q: Does the extended operating temperature range of CDR105NP-180MC affect circuit performance?

A: The extended range (-40°C to 100°C) provides broader thermal capability. Within the original operating range (-25°C to 70°C), performance characteristics remain equivalent. The substitute part operates within or exceeds the original specification across all temperature conditions.

Q: Are there any compliance or certification differences?

A: The CDR105NP-180MC is ROHS3 compliant, addressing current regulatory requirements. The original CDR105-180MC is RoHS non-compliant. Both parts carry EAR99 ECCN classification and are REACH Unaffected.

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