CDH74NP-151JC Equivalent & Substitute Parts

Part Overview

The CDH74NP-151JC is a 150 µH unshielded drum core wirewound inductor manufactured by Sumida America Components Inc. This surface mount component is rated for 710 mA continuous current with a maximum DC resistance of 720mOhm and operates across the temperature range of -40°C to 100°C. The part is Active in product status and ROHS3 compliant, making it suitable for modern electronic applications requiring fixed inductance in compact form factors. Substitute parts are identified when equivalent inductance values, compatible mounting types, and acceptable parameter tolerances align with application requirements.

Key Parameters

Parameter	Value	Unit
Inductance	150	µH
Inductance Tolerance	±5%	-
Current Rating	710	mA
DC Resistance (DCR)	720	mOhm Max
Core Type	Ferrite Drum Core	-
Shielding	Unshielded	-
Mounting Type	Surface Mount	-
Operating Temperature Range	-40°C to 100°C	-
RoHS Status	ROHS3 Compliant	-
Moisture Sensitivity Level	1 (Unlimited)	-

Substitute Part Grouping Explanation

Substitution of the CDH74NP-151JC is determined by the following critical parameters:

Primary Substitution Criteria:

Inductance value of 150 µH (exact match required)
Ferrite drum core construction with unshielded configuration
Surface mount packaging in nonstandard form factor
Current rating capability of 620 mA minimum
DC resistance within acceptable operating limits
ROHS3 compliance and MSL 1 rating
Active product status

The SDR7045-151K from Bourns Inc. qualifies as a substitute based on matching inductance specification, identical core material and shielding type, compatible surface mount configuration, and equivalent environmental compliance certifications. Variations in current rating, DC resistance, and tolerance are within acceptable substitution parameters for this component category.

Parameter Comparison

Parameter	CDH74NP-151JC (Sumida)	SDR7045-151K (Bourns)	Match Status
Inductance	150 µH	150 µH	Exact Match
Inductance Tolerance	±5%	±10%	Compatible
Current Rating	710 mA	620 mA	Substitute Lower
DC Resistance (DCR)	720 mOhm Max	580 mOhm Max	Substitute Better
Core Type	Ferrite Drum Core	Ferrite Drum Core	Exact Match
Shielding	Unshielded	Unshielded	Exact Match
Mounting Type	Surface Mount	Surface Mount	Exact Match
Operating Temperature Range	-40°C to 100°C	-40°C to 125°C	Substitute Better
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Exact Match
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	Exact Match
Packaging	Tape & Reel (TR)	Tape & Reel (TR)	Exact Match

Engineering Selection Recommendations

CDH74NP-151JC Selection Criteria: The CDH74NP-151JC is the primary choice when the application requires the specified 710 mA current rating and 720mOhm maximum DC resistance. This part maintains Active product status with established supply chain availability (1120 Pcs in stock). ROHS3 compliance and MSL 1 rating confirm suitability for standard manufacturing and storage conditions.

SDR7045-151K Selection Criteria: The SDR7045-151K from Bourns Inc. serves as a substitute when the application current requirement does not exceed 620 mA. This part offers superior DC resistance performance (580mOhm Max) and extended operating temperature range (-40°C to 125°C). Active product status and ROHS3 compliance ensure equivalent regulatory compliance. Higher inventory availability (1988 Pcs in stock) may support supply chain continuity.

Substitution Constraints: Applications requiring the full 710 mA current rating cannot use the SDR7045-151K due to its 620 mA saturation current specification. The inductance tolerance difference (±5% versus ±10%) must be evaluated against circuit design margins. Physical dimensions differ between parts; PCB layout verification is required prior to substitution.

Frequently Asked Questions (FAQ)

Q: Can SDR7045-151K replace CDH74NP-151JC in all applications?

A: No. The SDR7045-151K has a maximum current rating of 620 mA, while the CDH74NP-151JC is rated for 710 mA. Substitution is valid only when the application current requirement does not exceed 620 mA.

Q: What is the inductance tolerance difference between these parts?

A: The CDH74NP-151JC specifies ±5% tolerance, while the SDR7045-151K specifies ±10% tolerance. Circuit designs with tight inductance requirements must account for this wider tolerance band in the substitute part.

Q: Are the physical dimensions compatible for PCB layout?

A: No. The CDH74NP-151JC measures 0.315" L x 0.287" W x 0.205" H (8.00mm x 7.30mm x 5.20mm), while the SDR7045-151K measures 0.276" L x 0.276" W x 0.189" H (7.00mm x 7.00mm x 4.80mm). PCB footprint and clearance verification is required before substitution.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the CDH74NP-151JC and SDR7045-151K are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. Both carry EAR99 ECCN classification and 8504.50.4000 HTSUS code.

Q: Which part has better DC resistance performance?

A: The SDR7045-151K offers superior DC resistance at 580mOhm Max compared to the CDH74NP-151JC at 720mOhm Max. This results in lower power dissipation in the substitute part.

Q: What is the operating temperature difference?

A: The CDH74NP-151JC operates from -40°C to 100°C, while the SDR7045-151K operates from -40°C to 125°C. The substitute part provides extended high-temperature capability.

Q: Are both parts available in Tape & Reel packaging?

A: Yes. Both the CDH74NP-151JC and SDR7045-151K are supplied in Tape & Reel (TR) packaging suitable for automated assembly processes.

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