SCRH64B-221 Equivalent & Substitute Parts

Part Overview

The SCRH64B-221 is a 220 µH shielded surface mount inductor manufactured by Signal Transformer, rated for 290 mA maximum current with a DC resistance of 2.08Ohm maximum. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing design support and procurement continuity. The part operates across the industrial temperature range of -40°C to 125°C and meets ROHS3 compliance requirements.

Substiute Parts

SCRH64B-221

Signal TransformerIn Stock: 1252SCRH64B-221 Datasheet

Current PartRFQ

CLF6045NIT-221M-D

TDK CorporationIn Stock: 2022CLF6045NIT-221M-D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SCRH64B-221 is based on the following critical parameters:

• Inductance Value: 220 µH with ±20% tolerance
• Shielding Configuration: Shielded construction required
• Mounting Technology: Surface mount compatibility
• Current Handling: Minimum 290 mA rating
• DC Resistance: Maximum 2.08Ohm specification
• Regulatory Compliance: ROHS3 and REACH compliance maintained

The CLF6045NIT-221M-D from TDK Corporation meets these substitution criteria with equivalent inductance, shielded construction, and surface mount packaging. The substitute part exceeds the current rating specification at 470 mA and provides lower DC resistance at 864mOhm maximum, making it functionally compatible for this application.

Parameter Comparison

Engineering Selection Recommendations

The CLF6045NIT-221M-D is the designated manufacturer-recommended substitute for the SCRH64B-221. Selection of this substitute is supported by:

• Product Status: The substitute part maintains active production status, ensuring long-term availability and supply chain continuity
• Regulatory Compliance: Both ROHS3 and REACH compliance are maintained, with the substitute additionally carrying AEC-Q200 automotive qualification
• Performance Margin: The substitute provides increased current rating capacity (470 mA versus 290 mA) and reduced DC resistance (864mOhm versus 2.08Ohm), offering improved thermal performance and lower power dissipation
• Temperature Range Extension: Operating temperature range extends to -55°C to 150°C, providing broader environmental compatibility

Frequently Asked Questions (FAQ)

Q: Can the CLF6045NIT-221M-D be used as a direct replacement for the SCRH64B-221?

A: Yes. Both parts share identical inductance values (220 µH), tolerance specifications (±20%), shielding configuration, and surface mount packaging. The substitute meets or exceeds all electrical specifications of the original part.

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

A: The SCRH64B-221 measures 0.256" L x 0.252" W x 0.205" H (6.50mm x 6.40mm x 5.20mm). The CLF6045NIT-221M-D measures 0.248" L x 0.236" W x 0.189" H (6.30mm x 6.00mm x 4.80mm). Both are nonstandard packages; verify PCB layout compatibility before implementation.

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

A: The CLF6045NIT-221M-D exhibits lower DC resistance (864mOhm maximum versus 2.08Ohm maximum), resulting in reduced power dissipation and improved thermal characteristics. This represents an improvement over the original specification and does not negatively impact circuit function.

Q: Are there packaging or supply chain considerations for this substitution?

A: The substitute part is supplied in Cut Tape (CT) packaging with 2000 pieces in current inventory, compared to the obsolete SCRH64B-221. Verify tape specifications and reel configurations match your assembly equipment requirements.

Q: What certifications does the substitute part carry?

A: The CLF6045NIT-221M-D carries AEC-Q200 automotive qualification in addition to ROHS3 and REACH compliance, providing enhanced reliability documentation suitable for automotive and industrial applications.