CDRR75NP-330MC Equivalent & Substitute Parts

Part Overview

The CDRR75NP-330MC is a 33 µH shielded inductor manufactured by Sumida America Components Inc., rated for 1.39 A continuous current with a maximum DC resistance of 119 mOhm. This surface mount component features a ferrite core and is designed for applications requiring fixed inductance in compact form factors. The part is currently active in production and RoHS3 compliant.

Substitute parts are necessary when the original CDRR75NP-330MC becomes unavailable due to supply constraints, end-of-life status of alternative designs, or when design requirements permit selection from qualified alternatives that meet the same electrical and mechanical specifications.

Substiute Parts

CDRR75NP-330MC

Sumida America Components Inc.In Stock: 770CDRR75NP-330MC Datasheet

Current PartRFQ

CLF7045T-330M-D

TDK CorporationIn Stock: 1409CLF7045T-330M-D Datasheet

SimilarRFQ

LGJ7045TC-330M-D

TDK CorporationIn Stock: 1538LGJ7045TC-330M-D Datasheet

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LGJ7045TS-330M1R1-H

TDK CorporationIn Stock: 1571LGJ7045TS-330M1R1-H Datasheet

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SLF7045T-330MR82-PF

TDK CorporationIn Stock: 25190SLF7045T-330MR82-PF Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the CDRR75NP-330MC is determined by the following critical parameters:

Primary Substitution Criteria:

• Inductance value: 33 µH (fixed requirement)
• Inductance tolerance: ±20% (fixed requirement)
• Core material: Ferrite (fixed requirement)
• Shielding: Shielded (fixed requirement)
• Mounting type: Surface Mount (fixed requirement)
• Inductance test frequency: 100 kHz (fixed requirement)

Secondary Compatibility Parameters:

• Current rating: Minimum 1.39 A (substitute must equal or exceed)
• DC resistance: Maximum 119 mOhm (substitute must equal or be lower)
• Saturation current (Isat): Minimum 760 mA (substitute must equal or exceed)
• Operating temperature range: Minimum -40°C to 125°C (substitute must cover or exceed)
• Package dimensions: 6.90 × 6.90 mm footprint with 4.80 mm maximum height (fixed requirement)
• RoHS3 compliance: Required
• Moisture sensitivity: MSL 1 (Unlimited)

All four substitute parts listed meet these criteria within the allowed parameter ranges.

Parameter Comparison

Engineering Selection Recommendations

Primary Recommendation: CLF7045T-330M-D

The CLF7045T-330M-D is the preferred substitute for new designs and ongoing production. This part is manufactured by TDK Corporation and maintains Active product status. It exceeds the CDRR75NP-330MC in current rating (1.4 A versus 1.39 A) and saturation current (1.55 A versus 760 mA), providing design margin. The DC resistance of 132 mOhm is within acceptable tolerance relative to the 119 mOhm maximum of the original part. The extended operating temperature range (-40°C to 150°C versus -40°C to 125°C) provides additional thermal headroom. AEC-Q200 qualification confirms automotive-grade reliability. Footprint dimensions of 7.20 × 6.90 mm represent a minor increase from the original 6.90 × 6.90 mm; PCB layout verification is required for space-constrained applications.

Secondary Recommendation: LGJ7045TC-330M-D

The LGJ7045TC-330M-D is suitable for applications where the original CDRR75NP-330MC is unavailable and CLF7045T-330M-D cannot be accommodated. This part offers the lowest DC resistance (110 mOhm) among all substitutes, reducing power dissipation. Current rating and saturation current match CLF7045T-330M-D. However, this part carries Obsolete product status, indicating limited future availability. The reduced seated height of 4.50 mm (versus 4.80 mm) may provide layout advantages in height-constrained designs. AEC-Q200 qualification is present. Use only when supply of active alternatives is exhausted.

Tertiary Options: LGJ7045TS-330M1R1-H and SLF7045T-330MR82-PF

The LGJ7045TS-330M1R1-H and SLF7045T-330MR82-PF are not recommended for new designs. Both parts carry Obsolete or Not For New Designs status, respectively. The LGJ7045TS-330M1R1-H has a reduced current rating of 1.11 A, which falls below the original 1.39 A specification and provides insufficient design margin. The SLF7045T-330MR82-PF has the lowest current rating (1.09 A) and the most restricted operating temperature range (-40°C to 105°C), limiting thermal performance. These parts should be used only in legacy system maintenance or when no other alternatives are available.

Frequently Asked Questions (FAQ)

Q: Can CLF7045T-330M-D be used as a direct replacement for CDRR75NP-330MC without PCB modification?

A: The CLF7045T-330M-D has a footprint of 7.20 × 6.90 mm compared to the original 6.90 × 6.90 mm. The 0.30 mm increase in length requires PCB layout verification. If the original PCB has adequate clearance, the part can be mounted without modification. If space is constrained, PCB rework may be necessary.

Q: What is the impact of higher DC resistance in substitute parts?

A: The CLF7045T-330M-D has a maximum DC resistance of 132 mOhm versus 119 mOhm for the CDRR75NP-330MC. This 13 mOhm increase results in additional power dissipation of approximately 0.025 W at the rated 1.39 A current. For most applications, this difference is negligible. Thermal analysis is recommended for high-current or thermally sensitive designs.

Q: Why are LGJ7045TC-330M-D and LGJ7045TS-330M1R1-H marked as Obsolete?

A: Obsolete status indicates that these parts are no longer in active production and have limited remaining inventory. Manufacturers discontinue products to consolidate product lines and focus resources on active alternatives. Obsolete parts should not be selected for new designs due to supply uncertainty and potential long-term unavailability.

Q: Is AEC-Q200 qualification required for my application?

A: AEC-Q200 qualification is a reliability standard for automotive-grade components. CLF7045T-330M-D and LGJ7045TC-330M-D carry this certification. If your application is automotive or requires automotive-grade reliability, these parts are preferred. The CDRR75NP-330MC does not specify AEC-Q200 status; verify with your design requirements.

Q: Can SLF7045T-330MR82-PF be used in applications with operating temperatures above 105°C?

A: No. The SLF7045T-330MR82-PF has a maximum operating temperature of 105°C. Applications requiring operation at 125°C or higher must use CLF7045T-330M-D, LGJ7045TC-330M-D, or LGJ7045TS-330M1R1-H, all of which support -40°C to 125°C or higher ranges.

Q: What is the difference between Cut Tape (CT) and Tape & Reel (TR) packaging?

A: Tape & Reel (TR) packaging is supplied on continuous reels suitable for automated assembly equipment. Cut Tape (CT) packaging is supplied in smaller quantities on tape segments, typically for manual assembly or lower-volume production. The CDRR75NP-330MC is supplied in TR format. Substitute parts are available in both TR and CT formats; verify packaging compatibility with your assembly process.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All four substitute parts listed (CLF7045T-330M-D, LGJ7045TC-330M-D, LGJ7045TS-330M1R1-H, and SLF7045T-330MR82-PF) are RoHS3 compliant, matching the compliance status of the CDRR75NP-330MC.