SCR105B-560 Equivalent & Substitute Parts

Part Overview

The SCR105B-560 is a 56 µH shielded inductor manufactured by Signal Transformer, designed for surface mount applications with a current rating of 1.74 A and maximum DC resistance of 190mOhm. This component is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement continuity. Substitute parts must maintain the same inductance value, tolerance, shielding characteristics, and operating temperature range to ensure direct compatibility in existing circuit designs.

Substiute Parts

SCR105B-560

Signal TransformerIn Stock: 959SCR105B-560 Datasheet

Current PartRFQ

7447714560

Würth ElektronikIn Stock: 32777447714560 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SCR105B-560 is determined by the following mandatory parameters:

• Inductance Value: Must be 56 µH with ±20% tolerance
• Shielding Type: Must be shielded to maintain electromagnetic isolation
• Operating Temperature Range: Must support -40°C ~ 125°C minimum
• Mounting Configuration: Must be surface mount compatible
• Current Handling: Substitute must support minimum 1.74 A rating
• DC Resistance: Lower or equal DCR values are acceptable; higher values require circuit validation
• Regulatory Compliance: Must maintain ROHS3 compliance and MSL 1 rating

The Würth Elektronik 7447714560 qualifies as a direct substitute based on matching inductance, tolerance, shielding, temperature range, and regulatory compliance. The substitute provides improved current saturation characteristics (2.3A vs 930mA) and lower DC resistance (121mOhm vs 190mOhm), making it suitable for applications requiring the SCR105B-560 specifications.

Parameter Comparison

Engineering Selection Recommendations

The Würth Elektronik 7447714560 is the qualified substitute for the obsolete SCR105B-560. Selection is based on the following engineering criteria:

Compliance & Availability: The 7447714560 maintains active product status with 3176 units in stock, ensuring procurement continuity. Both components are ROHS3 compliant and REACH unaffected, meeting regulatory requirements for current manufacturing standards.

Electrical Compatibility: The substitute maintains identical inductance (56 µH) and tolerance (±20%), with matching operating temperature range (-40°C ~ 125°C). The 7447714560 exceeds the minimum current rating requirement (2 A vs 1.74 A) and provides superior saturation current (2.3A vs 930mA), enabling operation in higher-stress applications without performance degradation.

Performance Enhancement: The substitute offers reduced DC resistance (121mOhm vs 190mOhm), resulting in lower power dissipation and improved thermal performance in the application circuit.

Physical & Mechanical Compatibility: Both components are surface mount inductors with nonstandard package configurations. Dimensional compatibility should be verified against the specific PCB layout, as the substitute measures 10.00mm x 10.00mm x 5.00mm (max height) compared to the original 10.50mm x 9.50mm x 5.50mm (max height).

Frequently Asked Questions (FAQ)

Q: Can the Würth Elektronik 7447714560 be used as a direct replacement for the SCR105B-560?

A: Yes. Both components share identical inductance (56 µH), tolerance (±20%), shielding type, operating temperature range (-40°C ~ 125°C), and regulatory compliance (ROHS3, MSL 1). The substitute meets or exceeds all electrical specifications of the original part.

Q: What are the key differences between these two inductors?

A: The primary differences are product status (obsolete vs active), current saturation rating (930mA vs 2.3A), and DC resistance (190mOhm vs 121mOhm). The substitute provides improved performance characteristics with lower power dissipation and higher saturation current.

Q: Are there any physical compatibility concerns?

A: Dimensional differences exist: the substitute is 10.00mm x 10.00mm x 5.00mm (max height) versus the original 10.50mm x 9.50mm x 5.50mm (max height). PCB layout verification is required to confirm mechanical fit within the available space.

Q: Does the lower DC resistance of the substitute affect circuit operation?

A: No. Lower DC resistance is beneficial, reducing power dissipation and heat generation. This improvement does not negatively impact circuit performance when the original part specified 190mOhm maximum.

Q: Are both components suitable for AEC-Q200 applications?

A: The Würth Elektronik 7447714560 carries AEC-Q200 rating. The SCR105B-560 does not list this certification. If AEC-Q200 compliance is required, the substitute is the appropriate choice.

Q: What is the inductance test frequency for each component?

A: The SCR105B-560 is tested at 2.52 kHz, while the 7447714560 is tested at 100 kHz. Both maintain the specified 56 µH inductance within their respective test conditions and ±20% tolerance band.