CDR63BNP-150MC Equivalent & Substitute Parts

Part Overview

The CDR63BNP-150MC is a 15 µH shielded surface mount inductor manufactured by Sumida America Components Inc., rated for 860 mA continuous current with a maximum DC resistance of 180mOhm. This component is classified as obsolete product status. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this inductor specification.

Key Parameters

Parameter	Value	Significance for Substitution
Inductance	15 µH	Core electrical specification; must match exactly
Current Rating	860 mA	Thermal and saturation performance; substitute must meet or exceed
DC Resistance (DCR)	180mOhm Max	Power loss and thermal characteristics; critical for circuit performance
Shielding	Shielded	EMI containment requirement; must be maintained
Mounting Type	Surface Mount	PCB assembly compatibility; must remain surface mount
Operating Temperature Range	-40°C ~ 100°C	Environmental operating limits; substitute must cover or exceed
Package Type	Nonstandard	Physical footprint and height constraints on PCB
RoHS Status	ROHS3 Compliant	Regulatory compliance requirement

Substitute Part Grouping Explanation

Substitute parts for the CDR63BNP-150MC are identified based on strict electrical and mechanical parameter alignment. The substitution logic requires:

Electrical Parameters (Mandatory Match):

Inductance value of 15 µH with ±20% tolerance
DC resistance maximum of 180mOhm
Shielded construction for EMI performance
Current rating equal to or greater than 860 mA

Mechanical Parameters (Mandatory Match):

Surface mount packaging
Physical dimensions compatible with PCB layout constraints
Height-seated maximum within acceptable range for assembly

Compliance Parameters (Mandatory Match):

ROHS3 compliance certification
Operating temperature range covering -40°C to 100°C minimum

The SRR0603-150ML from Bourns Inc. qualifies as a direct substitute based on these criteria.

Parameter Comparison

Parameter	CDR63BNP-150MC (Main Part)	SRR0603-150ML (Substitute)	Compatibility Status
Manufacturer	Sumida America Components Inc.	Bourns Inc.	Different manufacturer
Inductance	15 µH	15 µH	Match
Inductance Tolerance	±20%	±20%	Match
Current Rating (Amps)	860 mA	900 mA	Substitute exceeds requirement
DC Resistance (DCR)	180mOhm Max	180mOhm Max	Match
Shielding	Shielded	Shielded	Match
Frequency - Self Resonant	29.3 MHz	25 MHz	Substitute within acceptable range
Operating Temperature Range	-40°C ~ 100°C	-40°C ~ 125°C	Substitute exceeds requirement
Mounting Type	Surface Mount	Surface Mount	Match
Size / Dimension (L x W)	0.244" x 0.220" (6.20mm x 5.60mm)	0.256" x 0.256" (6.50mm x 6.50mm)	Substitute slightly larger; verify PCB layout
Height - Seated (Max)	0.138" (3.50mm)	0.130" (3.30mm)	Substitute is lower profile
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Match
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	Match
Product Status	Obsolete	Active	Substitute is actively manufactured

Engineering Selection Recommendations

The SRR0603-150ML from Bourns Inc. is a qualified substitute for the obsolete CDR63BNP-150MC based on the following engineering criteria:

Electrical Compatibility: Both components maintain identical inductance (15 µH), tolerance (±20%), and maximum DC resistance (180mOhm). The substitute's current rating of 900 mA exceeds the original 860 mA requirement, providing additional thermal margin. Both components are shielded inductors suitable for EMI-sensitive applications.

Thermal Performance: The substitute's operating temperature range of -40°C to 125°C exceeds the original specification of -40°C to 100°C, providing extended environmental coverage.

Regulatory Compliance: Both components are ROHS3 compliant and carry MSL Level 1 (Unlimited) moisture sensitivity rating, meeting current regulatory requirements.

Product Availability: The substitute is classified as active product status with confirmed inventory availability (2013 pcs), whereas the original part is obsolete. This ensures long-term supply chain continuity.

Physical Considerations: The substitute dimensions (6.50mm x 6.50mm) are slightly larger than the original (6.20mm x 5.60mm), and the height is marginally lower (3.30mm vs 3.50mm). PCB layout verification is required to confirm footprint compatibility within existing design constraints.

Frequently Asked Questions (FAQ)

Q: Can the SRR0603-150ML directly replace the CDR63BNP-150MC without circuit redesign?

A: The SRR0603-150ML meets all critical electrical specifications (inductance, DCR, current rating, shielding). However, the slightly larger footprint (6.50mm x 6.50mm vs 6.20mm x 5.60mm) requires verification against PCB layout constraints. If the original PCB layout accommodates the larger dimensions, direct substitution is feasible without circuit redesign.

Q: What are the key electrical parameters that determine substitution compatibility?

A: Substitution compatibility is determined by: (1) Inductance value and tolerance matching at 15 µH ±20%, (2) DC resistance not exceeding 180mOhm maximum, (3) Current rating meeting or exceeding 860 mA, (4) Shielded construction for EMI performance, and (5) Surface mount packaging type.

Q: Does the substitute part meet regulatory compliance requirements?

A: Yes. The SRR0603-150ML is ROHS3 compliant and carries MSL Level 1 (Unlimited) rating, matching the original part's compliance profile.

Q: What is the significance of the self-resonant frequency difference?

A: The original part specifies 29.3 MHz self-resonant frequency while the substitute is 25 MHz. Both values are within acceptable operating ranges for typical 15 µH inductor applications. The difference reflects different core materials and winding designs between manufacturers but does not preclude substitution for standard circuit applications.

Q: Is the substitute's higher current rating (900 mA vs 860 mA) beneficial?

A: Yes. The substitute's 900 mA rating provides additional thermal margin and saturation headroom beyond the original 860 mA requirement, enhancing reliability in the application.

Q: What packaging format is the substitute supplied in?

A: The SRR0603-150ML is supplied in Tape & Reel (TR) format, suitable for automated PCB assembly processes.

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