SCR63B-100 Equivalent & Substitute Parts

Part Overview

The SCR63B-100 is a 10 µH shielded inductor manufactured by Signal Transformer, rated for 1.8 A continuous current with a maximum DC resistance of 140 mOhm. This component is designed for surface mount applications in nonstandard packaging. The part is currently obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and procurement planning.

Substiute Parts

SCR63B-100

Signal TransformerIn Stock: 894SCR63B-100 Datasheet

Current PartRFQ

74404063100

Würth ElektronikIn Stock: 184474404063100 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SCR63B-100 is based on the following critical parameters:

• Inductance Value: 10 µH with ±20% tolerance
• Current Rating: Minimum 1.8 A continuous current capability
• DC Resistance: Maximum 140 mOhm to maintain circuit performance
• Shielding: Shielded construction required
• Operating Temperature: -40°C ~ 125°C range
• Mounting Type: Surface mount configuration
• Regulatory Compliance: ROHS3 compliant

The substitute part 74404063100 meets all these criteria with improved electrical performance characteristics, including higher current saturation rating and lower DC resistance.

Parameter Comparison

Engineering Selection Recommendations

The 74404063100 from Würth Elektronik is a direct functional substitute for the obsolete SCR63B-100. Both components meet identical regulatory requirements including ROHS3 compliance and unlimited moisture sensitivity rating. The substitute part demonstrates superior electrical performance with 8.3% higher current rating, 120% higher saturation current, and 49% lower DC resistance. Both components operate across the identical temperature range and maintain the same inductance value and tolerance specification. The substitute part carries active product status with established supply chain availability, making it suitable for design transitions from the obsolete SCR63B-100.

Frequently Asked Questions (FAQ)

Q: Can the 74404063100 be used as a direct replacement for SCR63B-100?

A: Yes. Both components share identical inductance (10 µH), tolerance (±20%), operating temperature range (-40°C ~ 125°C), shielding configuration, and regulatory compliance (ROHS3). The substitute part exceeds the minimum current rating requirement of 1.8 A and provides lower DC resistance.

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

A: SCR63B-100 measures 0.256" L x 0.232" W x 0.138" H (6.50mm x 5.90mm x 4.60mm). The 74404063100 measures 0.236" L x 0.236" W x 0.110" H (6.00mm x 6.00mm x 2.80mm). The substitute is slightly smaller in all dimensions.

Q: Are there packaging differences?

A: SCR63B-100 uses nonstandard packaging. The 74404063100 is supplied in Tape & Reel (TR) format with a 6028 supplier device package designation, providing standard automated assembly compatibility.

Q: How do the DC resistance specifications compare?

A: SCR63B-100 specifies 140 mOhm maximum DC resistance. The 74404063100 provides 72 mOhm DC resistance, representing a 49% reduction in resistive losses and improved thermal performance.

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

A: Yes. Both components are rated for -40°C ~ 125°C operation, ensuring thermal compatibility in equivalent circuit applications.