SCRH124B-151 Equivalent & Substitute Parts

Part Overview

The SCRH124B-151 is a 150 µH shielded inductor manufactured by Signal Transformer, rated for 1.16 A continuous current with a maximum DC resistance of 530mOhm. This surface mount 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 960 units available in stock.

Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances for this product category.

Substiute Parts

SCRH124B-151

Signal TransformerIn Stock: 1070SCRH124B-151 Datasheet

Current PartRFQ

DR124-151-R

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

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The DR124-151-R from Eaton - Electronics Division qualifies as a direct substitute based on the following alignment of critical parameters:

Electrical Equivalence Criteria:

• Identical inductance value: 150 µH at 100 kHz test frequency
• Matching inductance tolerance: ±20%
• Operating temperature range: -40°C to 125°C (identical)
• Shielding classification: Shielded (identical)

Mechanical Compatibility Criteria:

• Identical package footprint: 12.50mm L x 12.50mm W
• Surface mount configuration (identical mounting type)
• Nonstandard package classification (matching)

Performance Considerations:

• DR124-151-R current rating (1.3 A) exceeds SCRH124B-151 requirement (1.16 A)
• DR124-151-R saturation current (1.44 A) exceeds SCRH124B-151 specification (950 mA)
• DR124-151-R DC resistance (445.2 mOhm) is lower than SCRH124B-151 maximum (530 mOhm), indicating improved efficiency

Regulatory Alignment:

• Both parts are ROHS3 compliant
• Both carry MSL rating of 1 (Unlimited)
• Both are classified under ECCN EAR99

Parameter Comparison

Engineering Selection Recommendations

Both SCRH124B-151 and DR124-151-R are active production components with full ROHS3 compliance and unlimited moisture sensitivity ratings, making either suitable for applications requiring regulatory adherence.

The DR124-151-R offers improved electrical performance through higher current and saturation ratings, combined with lower DC resistance. These characteristics provide additional design margin in applications operating near the SCRH124B-151 current limits.

Height differential of 0.30mm (SCRH124B-151 at 4.80mm versus DR124-151-R at 4.50mm) is negligible for standard PCB assembly processes and does not impact footprint compatibility.

Selection between these parts should be based on component availability, lead time requirements, and cost considerations, as electrical and mechanical compatibility is established across the specified parameter range.

Frequently Asked Questions (FAQ)

Q: Can DR124-151-R be used as a direct replacement for SCRH124B-151 in existing designs?

A: Yes. Both parts maintain identical inductance values (150 µH), tolerance specifications (±20%), operating temperature ranges (-40°C to 125°C), and package footprints (12.50mm x 12.50mm). Surface mount configuration and shielding classification are identical. The 0.30mm height difference does not affect PCB assembly compatibility.

Q: What are the key electrical differences between these parts?

A: DR124-151-R provides higher current rating (1.3 A vs. 1.16 A), higher saturation current (1.44 A vs. 950 mA), and lower DC resistance (445.2 mOhm vs. 530 mOhm maximum). These represent performance improvements rather than incompatibilities.

Q: Are both parts compliant with current regulatory requirements?

A: Yes. Both SCRH124B-151 and DR124-151-R are ROHS3 compliant with MSL rating 1 (Unlimited), meeting current environmental and reliability standards.

Q: Does the lower DC resistance of DR124-151-R affect circuit behavior?

A: Lower DC resistance reduces power dissipation in the inductor, which is beneficial for thermal management and efficiency. This does not create incompatibility; it represents an improvement within the specified tolerance band.

Q: What packaging format is used for both parts?

A: Both parts are supplied in Tape & Reel (TR) format for automated assembly processes, with identical nonstandard package classifications.