SDR1005-2R5ML Equivalent & Substitute Parts

Part Overview

The SDR1005-2R5ML is a 2.5 µH unshielded drum core wirewound inductor manufactured by Bourns Inc., rated for 5.5 A continuous current with a maximum DC resistance of 12 mOhm. This component is classified as Active and maintains full RoHS3 compliance. Substitute parts are identified when equivalent electrical performance can be achieved within the allowed parameter tolerances for this product category, ensuring functional compatibility in surface mount applications requiring similar inductance and current handling characteristics.

Substiute Parts

SDR1005-2R5ML

Bourns Inc.In Stock: 1620SDR1005-2R5ML Datasheet

Current PartRFQ

P0751.222NL

Pulse ElectronicsIn Stock: 4192P0751.222NL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SDR1005-2R5ML is determined by the following criteria:

Inductance Range: The ±20% tolerance specification allows substitute parts with inductance values between 2.0 µH and 3.0 µH. The P0751.222NL at 2.2 µH falls within this acceptable range.

Current Rating: Substitute parts must maintain a continuous current rating equal to or greater than 5.5 A to ensure equivalent or superior current handling capability. The P0751.222NL provides 6.1 A, exceeding the minimum requirement.

DC Resistance: Maximum DCR must not exceed 15 mOhm to maintain acceptable power dissipation characteristics. The P0751.222NL specifies 15 mOhm Max, meeting this threshold.

Saturation Current: Substitute parts must support saturation current of 7 A or higher to prevent core saturation under transient conditions. The P0751.222NL matches this specification at 7 A.

Shielding Configuration: Both parts are unshielded, ensuring electromagnetic compatibility in the same circuit environment.

Mounting and Compliance: Surface mount packaging and RoHS3 compliance are mandatory for direct substitution in modern manufacturing environments.

Parameter Comparison

Engineering Selection Recommendations

The P0751.222NL qualifies as a functional substitute for the SDR1005-2R5ML based on the following engineering criteria:

Electrical Compatibility: The 2.2 µH inductance of the P0751.222NL falls within the ±20% tolerance band of the 2.5 µH specification, ensuring circuit performance remains within design margins. The higher current rating (6.1 A vs. 5.5 A) and matching saturation current (7 A) provide equivalent or superior electrical performance.

Thermal Performance: The P0751.222NL extends the operating temperature range to -40°C ~ 130°C, providing broader environmental coverage compared to the SDR1005-2R5ML at -40°C ~ 125°C.

Regulatory Compliance: Both components maintain ROHS3 compliance, REACH Unaffected status, and EAR99 classification, ensuring regulatory equivalence for manufacturing and export purposes.

Physical Compatibility: Both parts are surface mount components with nonstandard packages and MSL 1 rating, supporting identical assembly processes and storage requirements.

Frequently Asked Questions (FAQ)

Q: Can the P0751.222NL be used as a direct replacement for the SDR1005-2R5ML?

A: Yes, within the specified tolerance parameters. The 2.2 µH inductance of the P0751.222NL falls within the ±20% tolerance of the 2.5 µH specification. The higher current rating and matching saturation current ensure equivalent circuit performance.

Q: What is the inductance difference between these parts, and does it affect circuit operation?

A: The P0751.222NL provides 2.2 µH compared to the SDR1005-2R5ML at 2.5 µH, a difference of 0.3 µH or 12%. This variation is within the ±20% tolerance specification and does not constitute a functional incompatibility for standard circuit applications.

Q: Are there differences in DC resistance that would impact power dissipation?

A: The P0751.222NL specifies 15 mOhm Max DCR compared to 12 mOhm Max for the SDR1005-2R5ML. At 5.5 A continuous current, this represents an additional power dissipation of approximately 1.65 mW. This difference is acceptable for most applications but should be verified in thermally constrained designs.

Q: Do both parts have identical moisture sensitivity and storage requirements?

A: Yes. Both components are rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions and unlimited shelf life under standard storage conditions.

Q: Are there any package or footprint differences between these inductors?

A: Both parts are nonstandard surface mount packages. The SDR1005-2R5ML measures 12.70mm L × 10.00mm W × 5.00mm H, while the P0751.222NL measures 12.95mm L × 9.40mm W × 5.46mm H. Physical layout verification is required to confirm PCB footprint compatibility.