SC10F-680 Equivalent & Substitute Parts

Part Overview

The SC10F-680 is a 68 µH unshielded wirewound inductor manufactured by Signal Transformer, rated for 1.8 A continuous current with a maximum DC resistance of 200 mOhm. This surface mount component operates across the temperature range of -40°C to 125°C and is ROHS3 compliant. The part is currently active in production with 1070 units in stock.

Substitute parts are identified when equivalent electrical performance can be maintained within the specified parameter tolerances while meeting the same functional requirements for 68 µH inductance applications.

Substiute Parts

SC10F-680

Signal TransformerIn Stock: 1082SC10F-680 Datasheet

Current PartRFQ

ASPI-0804T-680M-T

Abracon LLCIn Stock: 1498ASPI-0804T-680M-T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SC10F-680 is determined by the following critical parameters:

• Inductance Value: Must be 68 µH at ±20% tolerance
• DC Resistance: Maximum 200 mOhm
• Current Rating: Minimum 1.4 A (acceptable reduction from 1.8 A for non-critical applications)
• Mounting Type: Surface mount configuration required
• Shielding: Unshielded construction
• Compliance: ROHS3 compliant, REACH unaffected status

The ASPI-0804T-680M-T from Abracon LLC meets these substitution criteria with matching inductance, DC resistance, and compliance certifications. The primary design difference is the drum core ferrite construction versus the standard wirewound core, which does not affect electrical equivalence for this inductance value and frequency range.

Parameter Comparison

Engineering Selection Recommendations

The ASPI-0804T-680M-T is electrically equivalent to the SC10F-680 for applications requiring 68 µH inductance with 200 mOhm maximum DC resistance. Both parts maintain ROHS3 compliance and REACH unaffected status, meeting regulatory requirements for industrial and commercial applications.

Selection between these parts should consider:

• Current Derating: The ASPI-0804T-680M-T has a 1.4 A rating versus 1.8 A for the SC10F-680. Applications operating above 1.4 A continuous current require the SC10F-680.
• Temperature Range: The SC10F-680 supports operation to 125°C, while the ASPI-0804T-680M-T is rated to 85°C maximum. High-temperature applications above 85°C require the SC10F-680.
• Physical Dimensions: The ASPI-0804T-680M-T is slightly larger (12.95mm × 9.40mm versus 11.50mm × 9.70mm). PCB layout constraints may favor one design over the other.
• Packaging Format: The ASPI-0804T-680M-T is supplied in Tape & Reel format, supporting automated assembly processes.

Frequently Asked Questions (FAQ)

Q: Can the ASPI-0804T-680M-T replace the SC10F-680 in all applications?

A: Substitution is valid only when circuit current requirements do not exceed 1.4 A and operating temperature remains below 85°C. Applications requiring the full 1.8 A rating or temperatures above 85°C must use the SC10F-680.

Q: What is the significance of the drum core construction in the ASPI-0804T-680M-T?

A: The drum core ferrite construction provides equivalent inductance and DC resistance performance at the specified 100 kHz test frequency. This design variation does not affect electrical compatibility for 68 µH applications within the stated parameter tolerances.

Q: Are both parts suitable for automated assembly?

A: The ASPI-0804T-680M-T is supplied in Tape & Reel packaging, optimized for pick-and-place assembly. The SC10F-680 uses nonstandard packaging, which may require manual handling or custom feeder configuration.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the SC10F-680 and ASPI-0804T-680M-T are ROHS3 compliant and REACH unaffected, meeting regulatory requirements for EU and international markets.

Q: What is the primary limitation when using the ASPI-0804T-680M-T as a substitute?

A: The reduced current rating (1.4 A versus 1.8 A) and lower maximum operating temperature (85°C versus 125°C) are the primary constraints. Verify that your application operates within these limits before substitution.