SCRH64B-150 Equivalent & Substitute Parts Reference

Part Overview

The SCRH64B-150 is a 15 µH shielded surface mount inductor manufactured by Signal Transformer, rated for 1.11 A with a maximum DC resistance of 180mOhm. 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 industrial temperature range of -40°C to 125°C and meets ROHS3 compliance requirements.

Substiute Parts

SCRH64B-150

Signal TransformerIn Stock: 965SCRH64B-150 Datasheet

Current PartRFQ

7447785115

Würth ElektronikIn Stock: 24007447785115 Datasheet

MFR RecommendedRFQ

CDRH64BNP-150MC-B

Sumida America Components Inc.In Stock: 879CDRH64BNP-150MC-B Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SCRH64B-150 must satisfy the following core electrical and mechanical criteria:

Mandatory Matching Parameters:

• Inductance value: 15 µH
• Inductance tolerance: ±20% or tighter
• Current rating: minimum 1.11 A
• DC resistance: 180mOhm or lower
• Mounting type: Surface Mount
• Operating temperature range: minimum -40°C to 125°C
• RoHS compliance: ROHS3 Compliant

Allowable Variations:

• Shielding configuration (shielded or unshielded)
• Physical dimensions (within PCB layout constraints)
• Core material composition
• Product status (active substitutes preferred for obsolete parts)

Two substitute parts meet these criteria and are listed below.

Parameter Comparison

Engineering Selection Recommendations

7447785115 (Würth Elektronik WE-PD Robust Series): This substitute provides the highest current rating margin (1.6 A versus 1.11 A required) and maintains shielded configuration matching the original design. The part is active in production with AEC-Q200 automotive qualification. The 200mOhm maximum DCR is within acceptable tolerance of the original 180mOhm specification. Operating temperature range matches the original part. This substitute is suitable for applications requiring continued shielding performance and higher current headroom.

CDRH64BNP-150MC-B (Sumida America CDRH64B Series): This substitute matches the original DC resistance specification (180mOhm Max) and inductance tolerance (±20%). Current rating of 1.1 A is marginally below the original 1.11 A specification. The unshielded configuration represents a functional change from the original shielded design and may impact electromagnetic compatibility in noise-sensitive applications. Operating temperature range is limited to -40°C to 100°C, which is 25°C below the original specification. This substitute is suitable only for applications where shielding is not required and maximum operating temperature does not exceed 100°C.

Frequently Asked Questions (FAQ)

Q: Can the 7447785115 be used as a direct replacement for SCRH64B-150?

A: Yes. The 7447785115 meets all mandatory electrical parameters: 15 µH inductance, ±25% tolerance (tighter than ±20% requirement), 1.6 A current rating (exceeds 1.11 A requirement), 200mOhm DCR (within specification), shielded configuration, and -40°C to 125°C operating range. Physical dimensions differ slightly (6.20mm x 5.90mm x 3.30mm versus 6.50mm x 6.40mm x 5.20mm), requiring PCB layout verification.

Q: Can the CDRH64BNP-150MC-B be used as a direct replacement for SCRH64B-150?

A: Conditional substitution only. The CDRH64BNP-150MC-B matches inductance, tolerance, and DCR specifications. However, it is unshielded (original is shielded), which may introduce electromagnetic interference in sensitive circuits. Current rating is 1.1 A, marginally below the 1.11 A specification. Maximum operating temperature is 100°C, not 125°C. Use only in applications where shielding is not critical and operating temperature remains below 100°C.

Q: What is the impact of the unshielded configuration in CDRH64BNP-150MC-B?

A: Unshielded inductors generate external magnetic fields that may couple into nearby signal traces or components, potentially causing crosstalk or noise. The original SCRH64B-150 is shielded to contain this field. Substitution with an unshielded part is acceptable only in low-noise applications or when the inductor is physically isolated from sensitive circuits.

Q: Are both substitute parts available in production quantities?

A: Yes. The 7447785115 has 2300 pieces in stock. The CDRH64BNP-150MC-B has 864 pieces in stock. Both are active products with ongoing manufacturing support.

Q: What are the packaging differences?

A: The original SCRH64B-150 uses nonstandard packaging. Both substitutes are supplied in Tape & Reel (TR) format, which is standard for automated assembly. Reel specifications and tape pitch must be verified against assembly equipment compatibility.