SCRH104-150 Equivalent & Substitute Parts

Part Overview

The SCRH104-150 is a 15 µH shielded inductor manufactured by Signal Transformer, rated for 2.7 A continuous current with a maximum DC resistance of 69 mOhm. This surface mount component is designed for applications requiring fixed inductance in compact nonstandard packaging. The part is classified as obsolete, making equivalent substitutes necessary for ongoing production and maintenance applications. Substitute parts must maintain the core electrical specifications: 15 µH inductance at ±20% tolerance, shielded construction, surface mount configuration, and operating temperature range of -40°C to 125°C.

Substiute Parts

SCRH104-150

Signal TransformerIn Stock: 1247SCRH104-150 Datasheet

Current PartRFQ

CDRR105NP-150MC

Sumida America Components Inc.In Stock: 1142CDRR105NP-150MC Datasheet

MFR RecommendedRFQ

DR1040-150-R

Eaton - Electronics DivisionIn Stock: 2196DR1040-150-R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SCRH104-150 is determined by the following mandatory parameters:

• Inductance value of 15 µH with tolerance of ±20% or tighter
• Shielded construction to maintain electromagnetic isolation
• Surface mount configuration for PCB compatibility
• Current rating of 2.7 A or higher to support the original application load
• DC resistance not exceeding 69 mOhm to maintain thermal and efficiency characteristics
• Operating temperature range encompassing -40°C to 125°C
• Saturation current of 2 A or higher

Both identified substitute parts meet these criteria while offering improved or equivalent electrical performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

Both substitute parts are classified as active products with current manufacturing availability, addressing the obsolescence status of the SCRH104-150.

CDRR105NP-150MC provides near-equivalent performance with marginally lower DC resistance (63.8 mOhm vs. 69 mOhm) and matched current rating (2.71 A vs. 2.7 A). This part maintains the ±20% inductance tolerance of the original and is suitable for direct replacement in applications where the original specifications are required.

DR1040-150-R offers enhanced performance characteristics with higher current rating (3.1 A), lower DC resistance (50 mOhm), and higher saturation current (3.6 A). The inductance tolerance is ±30%, which is wider than the original ±20%. This part is appropriate for applications where improved thermal performance and higher current headroom are beneficial. RoHS3 compliance is confirmed for this part.

Both substitutes maintain the shielded surface mount configuration and -40°C to 125°C operating temperature range required for compatibility with the original application environment.

Frequently Asked Questions (FAQ)

Q: Can CDRR105NP-150MC directly replace SCRH104-150 in existing designs?

A: Yes. The CDRR105NP-150MC maintains identical inductance (15 µH), tolerance (±20%), current rating (2.71 A), saturation current (2 A), and operating temperature range (-40 to 125°C). DC resistance is lower (63.8 mOhm vs. 69 mOhm), which improves thermal performance. Physical dimensions are comparable for surface mount applications.

Q: What are the advantages of DR1040-150-R over the original SCRH104-150?

A: The DR1040-150-R provides three key improvements: higher current rating (3.1 A vs. 2.7 A), lower DC resistance (50 mOhm vs. 69 mOhm), and higher saturation current (3.6 A vs. 2 A). These characteristics reduce power dissipation and provide greater design margin. The inductance tolerance is ±30% compared to ±20%, which may require circuit validation in tolerance-sensitive applications.

Q: Are there packaging differences between these substitutes?

A: Both substitute parts are supplied in Tape & Reel (TR) packaging, which is standard for automated assembly. The original SCRH104-150 packaging information is not specified. Physical dimensions are nonstandard across all three parts but are comparable in surface mount form factor (approximately 10 mm × 10 mm × 5 mm).

Q: Which substitute should be selected for new designs?

A: Selection depends on application requirements. For direct replacement with identical specifications, use CDRR105NP-150MC. For applications benefiting from improved thermal performance and higher current capacity, use DR1040-150-R, provided the ±30% inductance tolerance is acceptable for circuit operation.

Q: Are both substitutes RoHS compliant?

A: DR1040-150-R is confirmed ROHS3 compliant. RoHS status for CDRR105NP-150MC is not specified in the provided data.