SCRH124-151 Equivalent & Substitute Parts

Part Overview

The SCRH124-151 is a 150 µH shielded inductor manufactured by Signal Transformer, designed for surface mount applications in nonstandard packages. This component operates across an industrial temperature range of -40°C to 125°C with a current rating of 1.16 A and maximum DC resistance of 530mOhm. The part maintains Active product status and holds ROHS3 compliance with unlimited moisture sensitivity rating (MSL 1).

Substitute parts become necessary when the primary component experiences supply constraints, extended lead times, or when design flexibility permits selection from qualified alternatives that maintain electrical and mechanical compatibility within specified tolerances.

Substiute Parts

SCRH124-151

Signal TransformerIn Stock: 991SCRH124-151 Datasheet

Current PartRFQ

DR124-151-R

Eaton - Electronics DivisionIn Stock: 1047DR124-151-R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SCRH124-151 is determined by strict alignment across the following critical parameters:

• Inductance value: 150 µH (within ±20% tolerance band)
• Current rating: minimum 1.16 A continuous
• DC resistance: maximum 530mOhm
• Saturation current: minimum 950mA
• Operating temperature range: -40°C to 125°C
• Shielding: Shielded construction required
• Mounting: Surface mount, nonstandard package
• Package footprint: 12.50mm × 12.50mm × 4.50mm maximum height
• Compliance: ROHS3 and MSL 1 (Unlimited)

The DR124-151-R qualifies as a direct substitute based on matching inductance, tolerance, temperature range, shielding, mounting type, and package dimensions. The substitute demonstrates improved electrical performance through higher current rating (1.3 A vs. 1.16 A), lower DC resistance (445.2mOhm vs. 530mOhm), and higher saturation current (1.44 A vs. 950mA), while maintaining identical compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

Both SCRH124-151 and DR124-151-R maintain Active product status and satisfy ROHS3 compliance requirements with unlimited moisture sensitivity ratings. Selection between these components should be based on supply availability and application-specific current margin requirements.

The DR124-151-R offers enhanced electrical performance characteristics: 12.1% higher current rating (1.3 A vs. 1.16 A), 16.1% lower DC resistance (445.2mOhm vs. 530mOhm), and 51.6% higher saturation current (1.44 A vs. 950mA). These improvements provide additional design margin in current-limited applications without compromising mechanical or thermal compatibility.

Both parts are qualified for identical operating temperature ranges (-40°C to 125°C) and maintain identical package footprints, ensuring direct mechanical and thermal interchangeability in surface mount assemblies.

Frequently Asked Questions (FAQ)

Q: Can DR124-151-R replace SCRH124-151 in existing designs?

A: Yes. Both components share identical inductance (150 µH ±20%), operating temperature range (-40°C to 125°C), shielding configuration, surface mount mounting type, and package dimensions (12.50mm × 12.50mm × 4.50mm). The substitute meets or exceeds all electrical specifications of the original part.

Q: What are the key differences between these inductors?

A: The primary differences are manufacturer (Signal Transformer vs. Eaton - Electronics Division), core material type (unspecified vs. ferrite drum core wirewound), and improved electrical performance in the substitute. The DR124-151-R provides higher current rating (1.3 A vs. 1.16 A), lower DC resistance (445.2mOhm vs. 530mOhm), and higher saturation current (1.44 A vs. 950mA).

Q: Are package dimensions identical between these parts?

A: Yes. Both SCRH124-151 and DR124-151-R use identical nonstandard package dimensions of 12.50mm length × 12.50mm width × 4.50mm maximum seated height, ensuring direct mechanical compatibility in surface mount applications.

Q: Do both parts meet the same compliance standards?

A: Yes. Both components are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, meeting identical environmental and regulatory requirements.

Q: Which part should be selected for new designs?

A: Selection should be based on supply availability and current margin requirements. The DR124-151-R provides superior electrical performance with higher current rating and lower DC resistance, offering additional design margin in applications where current headroom is beneficial.