SC414MF-6R8 Equivalent & Substitute Parts

Part Overview

The SC414MF-6R8 is a 6.8 µH shielded inductor manufactured by Signal Transformer, rated for 1.2 A with a maximum DC resistance of 220mOhm. 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 temperature range of -40°C to 125°C and is mounted as a surface mount device in a nonstandard package configuration.

Substiute Parts

SC414MF-6R8

Signal TransformerIn Stock: 896SC414MF-6R8 Datasheet

Current PartRFQ

1229AS-H-6R8M=P3

Murata ElectronicsIn Stock: 35041229AS-H-6R8M=P3 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SC414MF-6R8 is based on the following critical parameters:

• Inductance Value: 6.8 µH with ±20% tolerance
• Current Rating: 1.2 A minimum
• DC Resistance: Maximum 220mOhm (lower values acceptable)
• Shielding: Shielded configuration required
• Mounting: Surface mount, nonstandard package
• Environmental Compliance: ROHS3 compliant, MSL 1

The substitute part 1229AS-H-6R8M=P3 from Murata Electronics meets these core electrical specifications while maintaining shielded construction and surface mount compatibility.

Parameter Comparison

Engineering Selection Recommendations

The 1229AS-H-6R8M=P3 serves as a direct electrical substitute for the SC414MF-6R8. Both components share identical inductance values, tolerance specifications, and current ratings. The substitute offers improved DC resistance (192mOhm versus 220mOhm maximum), resulting in lower power dissipation.

Key considerations for selection:

• Product Status: The substitute is active and in production, ensuring long-term availability and supply chain stability.
• Compliance: Both parts maintain ROHS3 compliance and MSL 1 rating, supporting standard manufacturing and storage protocols.
• Temperature Range: The substitute operates to 85°C maximum, compared to 125°C for the original. Applications requiring operation above 85°C require thermal analysis.
• Saturation Current: The substitute exhibits 900mA saturation current versus 1A for the original. Circuit designs operating near saturation limits require verification.
• Physical Dimensions: Nonstandard package configurations differ between manufacturers. PCB layout verification is necessary prior to implementation.

Frequently Asked Questions (FAQ)

Q: Can the 1229AS-H-6R8M=P3 replace the SC414MF-6R8 in all applications?

A: The substitute meets the core electrical specifications (6.8 µH, 1.2 A, shielded). However, applications operating above 85°C ambient temperature or with saturation currents near 1A require circuit-level evaluation due to the substitute's 85°C maximum operating temperature and 900mA saturation rating.

Q: What are the physical dimension differences?

A: SC414MF-6R8 measures 0.169" L × 0.169" W × 0.059" H (4.30mm × 4.30mm × 1.50mm). The 1229AS-H-6R8M=P3 measures 0.146" L × 0.154" W × 0.047" H (3.70mm × 3.90mm × 1.20mm). PCB footprint and mounting clearance must be verified.

Q: Is the lower DC resistance of the substitute beneficial?

A: Yes. The 1229AS-H-6R8M=P3 DCR of 192mOhm maximum is lower than the 220mOhm maximum of the original, reducing resistive losses and heat generation in the inductor.

Q: Are both parts RoHS compliant?

A: Yes. Both SC414MF-6R8 and 1229AS-H-6R8M=P3 are ROHS3 compliant with MSL 1 rating, supporting standard manufacturing environments.

Q: What packaging format is the substitute available in?

A: The 1229AS-H-6R8M=P3 is supplied in Tape & Reel (TR) format, standard for surface mount production environments.