SCRH105-221 Equivalent & Substitute Parts

Part Overview

The SCRH105-221 is a 220 µH shielded inductor manufactured by Signal Transformer, designed for surface mount applications requiring moderate current handling. This component is classified as Active product status with full RoHS3 compliance. Substitute parts become necessary when the primary component experiences supply constraints, extended lead times, or when design requirements permit operation within alternative electrical and mechanical specifications.

Substiute Parts

SCRH105-221

Signal TransformerIn Stock: 939SCRH105-221 Datasheet

Current PartRFQ

VLCF5028T-221MR22-2

TDK CorporationIn Stock: 9240VLCF5028T-221MR22-2 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SCRH105-221 is determined by the following critical parameters:

• Inductance value: 220 µH (±20% tolerance band)
• Shielding requirement: Shielded construction
• Mounting technology: Surface mount
• RoHS3 compliance: Required
• Moisture sensitivity: MSL 1 classification

The VLCF5028T-221MR22-2 qualifies as an equivalent substitute based on matching inductance specification, shielding type, surface mount configuration, and regulatory compliance. However, the substitute exhibits reduced current handling capacity (220 mA rated vs. 630 mA rated) and narrower operating temperature range (-40°C ~ 105°C vs. -40°C ~ 125°C), which must be evaluated against specific application requirements.

Parameter Comparison

Engineering Selection Recommendations

Selection between SCRH105-221 and VLCF5028T-221MR22-2 depends on application current requirements and thermal operating conditions:

The SCRH105-221 is suitable for applications requiring the full 630 mA current rating and extended temperature operation to 125°C. Both components maintain ROHS3 compliance and MSL 1 classification, ensuring equivalent regulatory and moisture handling characteristics.

The VLCF5028T-221MR22-2 is applicable only in circuits where operating current does not exceed 220 mA and maximum ambient temperature remains below 105°C. The substitute exhibits marginally higher DC resistance (1.38 Ohm vs. 1.32 Ohm), resulting in increased power dissipation that must be factored into thermal design calculations.

Frequently Asked Questions (FAQ)

Q: Can VLCF5028T-221MR22-2 replace SCRH105-221 in all applications?

A: No. The substitute is limited to applications where circuit current does not exceed 220 mA and operating temperature remains within -40°C to 105°C. Applications requiring the full 630 mA rating or operation above 105°C require the original SCRH105-221.

Q: Are the physical dimensions compatible between these parts?

A: No. SCRH105-221 measures 0.398" L x 0.362" W x 0.236" H (10.10mm x 9.20mm x 6.00mm). VLCF5028T-221MR22-2 measures 0.197" L x 0.197" W x 0.110" H (5.00mm x 5.00mm x 2.80mm). PCB layout modifications are required for substitution.

Q: Do both parts meet the same compliance standards?

A: Yes. Both SCRH105-221 and VLCF5028T-221MR22-2 are ROHS3 compliant, REACH unaffected, and classified as MSL 1 (Unlimited moisture sensitivity level).

Q: What is the impact of higher DC resistance in the substitute?

A: The VLCF5028T-221MR22-2 exhibits 1.38 Ohm maximum DCR compared to 1.32 Ohm in the original. At 220 mA, this results in approximately 0.013 W additional power dissipation, which must be evaluated in thermal budget calculations.

Q: Are both parts available in tape and reel packaging?

A: Yes. Both SCRH105-221 and VLCF5028T-221MR22-2 are supplied in Tape & Reel (TR) packaging suitable for automated assembly processes.