SC511MF-150 Equivalent & Substitute Parts

Part Overview

The SC511MF-150 is a 15 µH shielded inductor manufactured by Signal Transformer, designed for surface mount applications requiring fixed inductance in compact form factors. This component is rated for 860 mA continuous current with a maximum DC resistance of 340 mOhm and operates across the temperature range of -40°C to 125°C. The part maintains Active product status and is RoHS3 compliant. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances.

Substiute Parts

SC511MF-150

Signal TransformerIn Stock: 1137SC511MF-150 Datasheet

Current PartRFQ

SD14-150-R

Eaton - Electronics DivisionIn Stock: 4175SD14-150-R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SC511MF-150 is determined by the following critical parameters:

• Inductance Value: Must be 15 µH with ±20% tolerance
• Current Rating: Substitute must support minimum 860 mA continuous current
• DC Resistance: Lower or equal DCR values are acceptable; higher values increase power dissipation
• Shielding: Shielded construction required to maintain electromagnetic isolation
• Mounting Type: Surface mount configuration mandatory for PCB compatibility
• Physical Dimensions: Footprint compatibility within 5.20mm x 5.20mm base dimensions
• Operating Temperature: Minimum range of -40°C to 85°C acceptable; extended upper range (-40°C to 125°C) provides additional margin
• Compliance: RoHS and REACH compliance status must be maintained

The SD14-150-R from Eaton - Electronics Division qualifies as a direct substitute based on matching inductance, shielding, mounting type, and physical footprint, while providing improved current handling and reduced DC resistance.

Parameter Comparison

Engineering Selection Recommendations

The SD14-150-R qualifies as a direct substitute for the SC511MF-150 based on electrical and mechanical parameter alignment. Selection between these parts should consider:

Electrical Performance: The SD14-150-R provides superior current handling capacity (980 mA vs. 860 mA) and lower DC resistance (260.9 mOhm vs. 340 mOhm maximum), resulting in reduced power dissipation and improved thermal performance in the application.

Thermal Operating Range: The SC511MF-150 supports extended upper temperature operation to 125°C, while the SD14-150-R is rated to 85°C. Applications requiring sustained operation above 85°C must retain the original part.

Physical Compatibility: Both parts share identical footprint dimensions (5.20mm x 5.20mm). The SD14-150-R seated height is 1.45 mm compared to 1.30 mm for the SC511MF-150. PCB layout clearance must be verified to accommodate the additional 0.15 mm height.

Compliance Status: Both parts maintain RoHS compliance and MSL Level 1 rating, ensuring compatibility with standard manufacturing and storage protocols.

Product Availability: Both parts maintain Active product status with established supply channels.

Frequently Asked Questions (FAQ)

Q: Can the SD14-150-R replace the SC511MF-150 in all applications?

A: The SD14-150-R is electrically compatible for applications operating within -40°C to 85°C. Applications requiring operation above 85°C must use the SC511MF-150. Verify PCB clearance for the additional 0.15 mm height.

Q: What is the significance of the lower DC resistance in the SD14-150-R?

A: Lower DC resistance (260.9 mOhm vs. 340 mOhm) reduces resistive power loss (I²R) at rated current, resulting in lower component temperature rise and improved efficiency. This is a performance advantage in current-limited applications.

Q: Are both parts suitable for automated assembly?

A: Yes. Both parts are surface mount components with MSL Level 1 rating, compatible with standard pick-and-place equipment and reflow soldering processes. No special handling is required.

Q: How do the saturation current ratings compare?

A: The SD14-150-R saturation current (969 mA) significantly exceeds the SC511MF-150 (500 mA). This indicates the substitute part maintains inductance stability at higher current levels, providing design margin in applications approaching rated current.

Q: What is the impact of the ±20% inductance tolerance on circuit design?

A: Both parts share identical ±20% tolerance. Circuit designs must account for this tolerance range in filter, matching, or resonant applications. At 15 µH nominal, the tolerance band spans 12 µH to 18 µH.

Q: Are there packaging differences between these parts?

A: The SC511MF-150 packaging is listed as nonstandard. The SD14-150-R is supplied in Tape & Reel (TR) format. Verify packaging requirements for your procurement and assembly processes.