SCRH104-820 Equivalent & Substitute Parts

Part Overview

The SCRH104-820 is a 82 µH shielded inductor manufactured by Signal Transformer, designed for surface mount applications with a current rating of 1.06 A and maximum DC resistance of 360mOhm. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing design support and production continuity. The part operates across the industrial temperature range of -40°C to 125°C and meets ROHS3 compliance requirements.

Substiute Parts

SCRH104-820

Signal TransformerIn Stock: 914SCRH104-820 Datasheet

Current PartRFQ

7447714820

Würth ElektronikIn Stock: 23377447714820 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SCRH104-820 is based on the following critical parameters that must remain constant or improve:

• Inductance Value: 82 µH at 100 kHz test frequency with ±20% tolerance
• Shielding Configuration: Shielded construction required
• Mounting Technology: Surface mount package only
• Operating Temperature Range: -40°C to 125°C minimum
• Current Handling: Minimum 1.06 A continuous rating; saturation current minimum 840 mA
• DC Resistance: Maximum 360 mOhm acceptable
• Regulatory Compliance: ROHS3 compliant, MSL 1

The substitute part 7447714820 (Würth Elektronik WE-PD Performance series) meets all substitution criteria with improved electrical performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

The 7447714820 (Würth Elektronik WE-PD Performance series) is a direct substitute for the obsolete SCRH104-820. The substitute part maintains identical inductance value, tolerance, shielding configuration, and operating temperature range while providing superior electrical performance through reduced DC resistance (176 mOhm versus 360 mOhm) and increased current handling capability (1.6 A versus 1.06 A).

Both parts maintain ROHS3 compliance and MSL 1 rating. The substitute part carries active product status with AEC-Q200 automotive qualification, ensuring long-term availability and supply chain stability. The substitute is supplied in Tape & Reel packaging, standard for production environments.

Frequently Asked Questions (FAQ)

Q: Can the 7447714820 be used as a direct replacement for SCRH104-820 in existing designs?

A: Yes. The substitute part maintains the same inductance value (82 µH), tolerance (±20%), shielding type, operating temperature range (-40°C to 125°C), and mounting technology (surface mount). All critical electrical parameters either match or exceed the original specification.

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

A: The SCRH104-820 measures 0.398" L × 0.362" W × 0.197" H (10.10mm × 9.20mm × 5.00mm). The 7447714820 measures 0.394" L × 0.394" W × 0.197" H (10.00mm × 10.00mm × 5.00mm). Both share identical height and similar footprint dimensions suitable for standard PCB layouts.

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

A: The reduced DC resistance (176 mOhm versus 360 mOhm) in the substitute part represents an improvement. Lower resistance reduces power dissipation and heat generation, benefiting overall circuit efficiency without altering the inductance characteristic.

Q: Are there packaging differences between the original and substitute?

A: The SCRH104-820 packaging format is not specified in available data. The 7447714820 is supplied in Tape & Reel (TR) format, standard for automated assembly processes. Verify packaging compatibility with your production equipment requirements.

Q: What compliance certifications apply to the substitute part?

A: The 7447714820 meets ROHS3 compliance, carries AEC-Q200 automotive qualification, and maintains MSL 1 (unlimited moisture sensitivity level). These certifications ensure suitability for industrial and automotive applications across the specified temperature range.