CDR63BNP-220MC Equivalent & Substitute Parts

Part Overview

The CDR63BNP-220MC is a 22 µH shielded surface mount inductor manufactured by Sumida America Components Inc., rated for 760 mA continuous current with a maximum DC resistance of 320mOhm. This component is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement continuity. The part operates across the temperature range of -40°C to 100°C and is RoHS3 compliant with unlimited moisture sensitivity rating (MSL 1).

Substiute Parts

CDR63BNP-220MC

Sumida America Components Inc.In Stock: 1004CDR63BNP-220MC Datasheet

Current PartRFQ

SRR0603-220ML

Bourns Inc.In Stock: 2481SRR0603-220ML Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CDR63BNP-220MC is determined by the following critical parameters:

Primary Matching Criteria:

• Inductance value: 22 µH (±20% tolerance acceptable)
• Shielding classification: Shielded
• Mounting technology: Surface Mount
• Current rating: Minimum 700 mA (substitute must support primary part's 760 mA requirement)
• DC resistance: Maximum 270mOhm to 320mOhm range
• Compliance: RoHS3 compliant, MSL 1 rating

Mechanical Compatibility:

• Package classification: Nonstandard form factor
• Physical dimensions: Footprint compatibility within 6.20mm × 5.60mm to 6.50mm × 6.50mm range
• Height seated: 3.30mm to 3.50mm maximum

The SRR0603-220ML from Bourns Inc. meets these substitution criteria with matching inductance, shielding, surface mount configuration, and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The SRR0603-220ML qualifies as a direct substitute for the obsolete CDR63BNP-220MC based on the following engineering factors:

Compliance and Availability: The SRR0603-220ML maintains RoHS3 compliance and MSL 1 rating identical to the main part. As an active product from Bourns Inc., it provides assured long-term availability and supply chain continuity, addressing the obsolescence status of the CDR63BNP-220MC.

Electrical Performance: Both inductors deliver 22 µH inductance with ±20% tolerance. The substitute's DC resistance of 270mOhm maximum is superior to the main part's 320mOhm maximum specification, resulting in lower power dissipation. The substitute's current rating of 700 mA is 60 mA lower than the main part's 760 mA rating; this difference must be evaluated against actual circuit current requirements.

Thermal Characteristics: The SRR0603-220ML operates across -40°C to 125°C, providing a 25°C extended upper temperature range compared to the main part's -40°C to 100°C specification.

Physical Integration: The substitute exhibits a slightly larger footprint (6.50mm × 6.50mm versus 6.20mm × 5.60mm) with a lower seated height (3.30mm versus 3.50mm). PCB layout verification is required to confirm mechanical fit within existing design constraints.

Frequently Asked Questions (FAQ)

Q: Can the SRR0603-220ML directly replace the CDR63BNP-220MC in all applications?

A: The SRR0603-220ML is electrically and mechanically compatible for applications where the circuit current requirement does not exceed 700 mA. The substitute's superior DC resistance (270mOhm versus 320mOhm) and extended temperature range provide performance advantages. PCB layout must accommodate the slightly larger footprint and corner terminal configuration.

Q: What is the significance of the 60 mA current rating difference?

A: The CDR63BNP-220MC is rated for 760 mA continuous current, while the SRR0603-220ML is rated for 700 mA. If the application circuit draws current within the 700 mA to 760 mA range, the substitute cannot be used. Verify actual circuit current requirements before selection.

Q: How do the DC resistance specifications affect circuit performance?

A: The SRR0603-220ML's 270mOhm maximum DCR is lower than the main part's 320mOhm maximum. Lower DC resistance reduces resistive losses and heat generation. This represents an improvement in power efficiency for the substitute component.

Q: Are there mechanical compatibility concerns with the larger footprint?

A: The SRR0603-220ML footprint is 6.50mm × 6.50mm compared to the main part's 6.20mm × 5.60mm. The substitute is slightly larger in both dimensions. PCB layout review is necessary to confirm the component fits within allocated space and does not create routing conflicts.

Q: What does the corner terminal configuration mean for the SRR0603-220ML?

A: The SRR0603-220ML features corner terminals, indicating the solder connection points are positioned at the corners of the component package. This differs from standard terminal placement and requires verification that PCB pad layout matches this terminal geometry.

Q: Is the extended temperature range of the substitute beneficial?

A: The SRR0603-220ML operates to 125°C maximum versus the main part's 100°C maximum. For applications operating within the original -40°C to 100°C range, this extended specification provides additional thermal margin and reliability headroom.

Q: What compliance certifications apply to both parts?

A: Both the CDR63BNP-220MC and SRR0603-220ML are RoHS3 compliant and carry MSL 1 (unlimited moisture sensitivity) ratings, ensuring equivalent environmental and regulatory compliance for procurement and assembly processes.