SCRH105R-681 Equivalent & Substitute Parts

Part Overview

The SCRH105R-681 is a 680 µH shielded inductor manufactured by Signal Transformer, designed for surface mount applications requiring 560 mA current rating and 1.6Ohm maximum DC resistance. This component is classified as Active product status with ROHS3 compliance and unlimited moisture sensitivity level (MSL 1). Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances for this inductance value and current rating category.

Substiute Parts

SCRH105R-681

Signal TransformerIn Stock: 1161SCRH105R-681 Datasheet

Current PartRFQ

DR1050-681-R

Eaton - Electronics DivisionIn Stock: 2195DR1050-681-R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SCRH105R-681 is determined by the following critical parameters:

• Inductance value of 680 µH within ±30% tolerance
• Current rating of 560 mA or greater
• DC resistance not exceeding 1.6Ohm maximum
• Shielded construction
• Surface mount configuration
• Nonstandard package with compatible footprint (10.50mm x 10.30mm)
• Height compatibility (5.10mm maximum seated height)
• Operating temperature range of -40°C to 125°C
• ROHS3 compliance

The DR1050-681-R meets all substitution criteria through equivalent inductance, matching current rating, lower DC resistance (1.369Ohm), compatible physical dimensions, and identical compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

Both the SCRH105R-681 and DR1050-681-R are Active product status components with ROHS3 compliance and MSL 1 rating, suitable for applications requiring 680 µH inductance at 560 mA. The DR1050-681-R substitute offers improved saturation current performance (550 mA versus 430 mA) and lower DC resistance (1.369Ohm versus 1.6Ohm maximum), resulting in reduced power dissipation. Physical dimensions and height clearance are compatible for direct board-level substitution. Both components maintain identical operating temperature range and compliance certifications.

Frequently Asked Questions (FAQ)

Q: Can the DR1050-681-R directly replace the SCRH105R-681 on existing PCBs?

A: Yes. Both components share identical footprint dimensions (10.50mm x 10.30mm) and compatible seated heights (5.00mm versus 5.10mm maximum), enabling direct substitution without PCB redesign.

Q: What is the significance of the lower DC resistance in the substitute part?

A: The DR1050-681-R exhibits 1.369Ohm maximum DC resistance compared to 1.6Ohm maximum in the SCRH105R-681. This 14.4% reduction in resistance decreases power dissipation and heat generation during operation at rated current.

Q: Are the inductance tolerances identical between both parts?

A: Yes. Both the SCRH105R-681 and DR1050-681-R maintain ±30% inductance tolerance, ensuring equivalent circuit performance within specified design margins.

Q: What is the difference in saturation current between these inductors?

A: The SCRH105R-681 saturates at 430 mA, while the DR1050-681-R saturates at 550 mA. The substitute part provides 120 mA additional saturation margin above the 560 mA rated current, offering improved performance headroom.

Q: Are both parts compliant with current environmental regulations?

A: Yes. Both components are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic component manufacturing and use.

Q: What packaging format is used for both inductors?

A: Both the SCRH105R-681 and DR1050-681-R are supplied in Tape & Reel (TR) packaging for automated assembly processes.