SCRH64B-331 Equivalent & Substitute Parts

Part Overview

The SCRH64B-331 is a 330 µH shielded inductor manufactured by Signal Transformer, designed for surface mount applications with a current rating of 230 mA and maximum DC resistance of 2.67Ohm. This component is classified as obsolete, making identification of suitable substitute parts essential for ongoing design support and production continuity. The part operates across an industrial temperature range of -40°C to 125°C and meets ROHS3 compliance requirements.

Substiute Parts

SCRH64B-331

Signal TransformerIn Stock: 781SCRH64B-331 Datasheet

Current PartRFQ

CLF6045NIT-331M-D

TDK CorporationIn Stock: 1139CLF6045NIT-331M-D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SCRH64B-331 is determined by strict equivalence across the following critical parameters:

Primary Equivalence Criteria:

• Inductance value: 330 µH (±20% tolerance maintained)
• Shielding classification: Shielded construction required
• Mounting technology: Surface mount only
• Package category: Nonstandard form factor

Secondary Compatibility Parameters:

• Current rating must equal or exceed 230 mA minimum
• DC resistance must not exceed 2.67Ohm maximum
• Operating temperature range must encompass or exceed -40°C to 125°C
• RoHS3 compliance required

The CLF6045NIT-331M-D from TDK Corporation meets all primary and secondary criteria, with enhanced performance characteristics in current handling (360 mA) and reduced DC resistance (1.1Ohm Max), while maintaining identical inductance specification and shielded construction.

Parameter Comparison

Engineering Selection Recommendations

The CLF6045NIT-331M-D is the qualified substitute for the obsolete SCRH64B-331. Selection is based on the following engineering factors:

Compliance & Certification: Both parts maintain ROHS3 compliance and MSL 1 rating. The substitute carries AEC-Q200 qualification, indicating automotive-grade reliability standards.

Performance Margin: The substitute provides enhanced current handling capacity (360 mA versus 230 mA) and significantly reduced DC resistance (1.1Ohm versus 2.67Ohm), resulting in lower power dissipation and improved thermal performance in the application circuit.

Temperature Coverage: The substitute extends the operating temperature range to -55°C to 150°C, providing broader environmental compatibility compared to the original part's -40°C to 125°C specification.

Physical Compatibility: Dimensional differences are minimal (6.30mm x 6.00mm x 4.80mm versus 6.50mm x 6.40mm x 5.20mm), with the substitute occupying slightly less board space while maintaining surface mount compatibility.

Availability & Status: The substitute is in active production with confirmed inventory, eliminating obsolescence risk associated with the original part.

Frequently Asked Questions (FAQ)

Q: Can the CLF6045NIT-331M-D directly replace the SCRH64B-331 in existing designs?

A: Yes. Both parts share identical inductance (330 µH ±20%), shielding classification, surface mount technology, and nonstandard package form factor. The substitute meets or exceeds all electrical specifications of the original part.

Q: What are the key differences between these parts?

A: The substitute offers improved performance: 360 mA current rating (versus 230 mA), 1.1Ohm maximum DCR (versus 2.67Ohm), extended temperature range (-55°C to 150°C versus -40°C to 125°C), and active product status with AEC-Q200 qualification.

Q: Are there physical placement considerations when switching to the CLF6045NIT-331M-D?

A: The substitute is slightly smaller (6.30mm x 6.00mm x 4.80mm versus 6.50mm x 6.40mm x 5.20mm). PCB footprints designed for the original part will accommodate the substitute with minimal clearance margin. Verify pad spacing and component placement in your specific layout.

Q: Do both parts require identical handling and storage procedures?

A: Yes. Both parts carry MSL 1 (Unlimited) moisture sensitivity rating, requiring standard dry storage conditions. No additional moisture control measures are necessary beyond standard component handling practices.

Q: Is the substitute suitable for automotive applications?

A: The CLF6045NIT-331M-D carries AEC-Q200 qualification, making it suitable for automotive-grade applications. The original SCRH64B-331 does not list automotive certification.