SCRH124-150 Equivalent & Substitute Parts

Part Overview

The SCRH124-150 is a 15 µH shielded inductor manufactured by Signal Transformer, designed for surface mount applications requiring fixed inductance in compact nonstandard packages. This component operates across the industrial temperature range of -40°C to 125°C and is ROHS3 compliant. The part is currently active in production with 688 units available in inventory. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances.

Substiute Parts

SCRH124-150

Signal TransformerIn Stock: 724SCRH124-150 Datasheet

Current PartRFQ

DR124-150-R

Eaton - Electronics DivisionIn Stock: 2510DR124-150-R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The DR124-150-R from Eaton - Electronics Division qualifies as a substitute for the SCRH124-150 based on the following critical parameters:

Inductance equivalence: Both parts specify 15 µH at ±20% tolerance, meeting the same inductance requirement at the 100 kHz test frequency.

Current handling: The DR124-150-R provides 3.6 A current rating with 4.62 A saturation current, exceeding the SCRH124-150 specifications of 4.6 A and 3.2 A respectively. This represents improved performance margin.

DC resistance: The DR124-150-R specifies 44.8 mOhm maximum, which is lower than the SCRH124-150 at 50 mOhm maximum, providing reduced power dissipation.

Mechanical compatibility: Both parts share identical package dimensions of 12.50mm x 12.50mm with 4.50mm maximum seated height, enabling direct board-level substitution.

Shielding and environmental: Both parts are shielded inductors with identical operating temperature range (-40°C to 125°C), MSL rating of 1, and ROHS3 compliance.

Parameter Comparison

Engineering Selection Recommendations

The DR124-150-R represents a qualified substitute for the SCRH124-150 in applications where the specified electrical and mechanical parameters are required. Both parts maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for industrial and commercial applications. The DR124-150-R offers improved current handling capability and lower DC resistance, making it suitable for designs requiring enhanced thermal performance or higher current margins. Selection between these parts should be based on availability, lead time, and cost considerations, as both meet the functional requirements defined by the 15 µH inductance specification and surface mount package constraints.

Frequently Asked Questions (FAQ)

Q: Can the DR124-150-R be used as a direct replacement for the SCRH124-150?

A: Yes. Both parts share identical inductance values (15 µH ±20%), package dimensions (12.50mm x 12.50mm x 4.50mm), and operating temperature ranges (-40°C to 125°C). The DR124-150-R exceeds the current rating and saturation current specifications while maintaining lower DC resistance, making it electrically and mechanically compatible.

Q: What are the key differences between these two inductors?

A: The primary differences are the manufacturer (Signal Transformer vs. Eaton), core material designation (not specified vs. Ferrite), and performance characteristics. The DR124-150-R provides 3.6 A current rating versus 4.6 A, 4.62 A saturation current versus 3.2 A, and 44.8 mOhm DC resistance versus 50 mOhm maximum. These represent performance improvements rather than functional differences.

Q: Are both parts suitable for the same PCB layout?

A: Yes. Both inductors use identical nonstandard package dimensions and surface mount mounting type, requiring no PCB layout modifications for substitution.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the SCRH124-150 and DR124-150-R are ROHS3 compliant, MSL 1 rated, and REACH unaffected, meeting identical regulatory requirements.

Q: What is the significance of the ±20% inductance tolerance?

A: The ±20% tolerance defines the acceptable inductance range at the 100 kHz test frequency. Both parts share this tolerance specification, ensuring equivalent performance consistency in circuit applications.