SC2506-4R7 Equivalent & Substitute Parts

Part Overview

The SC2506-4R7 is a 4.7 µH unshielded surface mount inductor manufactured by Signal Transformer, rated for 1.6 A continuous current with a maximum DC resistance of 145mOhm. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing design support and production continuity. The part is ROHS3 compliant and carries unlimited moisture sensitivity rating (MSL 1).

Substiute Parts

SC2506-4R7

Signal TransformerIn Stock: 868SC2506-4R7 Datasheet

Current PartRFQ

UP1B-4R7-R

Eaton - Electronics DivisionIn Stock: 3253UP1B-4R7-R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SC2506-4R7 is determined by the following critical parameters:

• Inductance Value: 4.7 µH at 100 kHz test frequency with ±20% tolerance
• Current Rating: Minimum 1.6 A continuous current capability
• DC Resistance: Lower DCR values are acceptable; higher values may impact circuit performance
• Mounting Configuration: Surface mount, nonstandard package dimensions
• Electrical Characteristics: Unshielded construction, ferrite or equivalent core material
• Compliance: ROHS3 compliance and MSL 1 rating required

The substitute part UP1B-4R7-R meets these criteria with equivalent inductance and tolerance, improved current handling (2.2 A rating), and superior DC resistance characteristics (54.4mOhm Max).

Parameter Comparison

Engineering Selection Recommendations

The UP1B-4R7-R from Eaton - Electronics Division is a direct functional substitute for the obsolete SC2506-4R7. Selection is supported by:

• Electrical Equivalence: Identical inductance value and tolerance at the specified test frequency
• Enhanced Performance: Superior current handling (2.2 A vs. 1.6 A) and significantly lower DC resistance (54.4mOhm vs. 145mOhm) provide improved thermal characteristics and reduced power dissipation
• Compliance Alignment: Both parts maintain ROHS3 compliance and MSL 1 rating
• Production Status: The substitute is in active production with confirmed inventory availability (3227 pcs), ensuring long-term supply continuity
• Packaging: Both parts use nonstandard surface mount packages; physical dimensions differ slightly but both are suitable for SMD assembly processes

Frequently Asked Questions (FAQ)

Q: Can UP1B-4R7-R be used as a direct replacement for SC2506-4R7 in existing designs?

A: Yes. Both parts provide 4.7 µH inductance at ±20% tolerance with identical test frequency and mounting type. The substitute offers improved electrical performance with higher current rating and lower DC resistance.

Q: What are the physical dimension differences between these parts?

A: SC2506-4R7 measures 0.364" L x 0.310" W x 0.065" H (9.25mm x 7.87mm x 1.65mm). UP1B-4R7-R measures 0.350" L x 0.240" W x 0.197" H (8.89mm x 6.10mm x 5.00mm). PCB layout verification is required to confirm fit within available space.

Q: Does the lower DC resistance of UP1B-4R7-R affect circuit operation?

A: Lower DC resistance (54.4mOhm vs. 145mOhm) reduces resistive losses and heat generation. This is a beneficial characteristic that does not negatively impact circuit function when the original design was based on SC2506-4R7 specifications.

Q: Are both parts suitable for the same operating temperature range?

A: SC2506-4R7 does not specify an operating temperature range. UP1B-4R7-R is rated for -40°C to 85°C. Verify that the substitute's temperature range meets your application requirements.

Q: What is the packaging format difference?

A: SC2506-4R7 is supplied as individual units. UP1B-4R7-R is supplied in Tape & Reel (TR) format, which is standard for high-volume SMD assembly operations.