SCRH124-100 Equivalent & Substitute Parts

Part Overview

The SCRH124-100 is a 10 µH shielded surface mount inductor manufactured by Signal Transformer, rated for 4.1 A continuous current with a maximum DC resistance of 28 mOhm. This component is designed for applications requiring electromagnetic shielding to minimize coupling effects in high-density circuit layouts. The part maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating, making it suitable for industrial and commercial applications across the -40°C to 125°C operating temperature range.

Substitute parts are identified when equivalent electrical performance can be maintained within the specified parameter tolerances while meeting packaging and compliance requirements.

Substiute Parts

SCRH124-100

Signal TransformerIn Stock: 1122SCRH124-100 Datasheet

Current PartRFQ

UP2B-100-R

Eaton - Electronics DivisionIn Stock: 3248UP2B-100-R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SCRH124-100 is determined by the following critical parameters:

Primary Electrical Criteria:

• Inductance value of 10 µH within ±20% tolerance
• Current rating minimum of 4.1 A
• DC resistance not exceeding 28 mOhm
• Saturation current sufficient to support rated load conditions

Secondary Compatibility Criteria:

• Surface mount packaging configuration
• Operating temperature range encompassing -40°C to 125°C
• RoHS3 compliance certification
• Moisture sensitivity level MSL 1 (Unlimited)

The substitute part UP2B-100-R meets the primary electrical criteria with a 10 µH inductance, 4.3 A current rating, and 26.7 mOhm DC resistance. However, the substitute exhibits functional differences in shielding architecture (unshielded versus shielded) and reduced maximum operating temperature (85°C versus 125°C), which may impact suitability depending on application requirements.

Parameter Comparison

Engineering Selection Recommendations

Both the SCRH124-100 and UP2B-100-R maintain Active product status with full RoHS3 compliance and unlimited moisture sensitivity ratings, ensuring regulatory compliance for current and future applications.

The SCRH124-100 provides shielded construction with extended temperature operation to 125°C, suitable for applications requiring electromagnetic isolation and thermal stability in high-temperature environments.

The UP2B-100-R offers unshielded drum core construction with slightly improved DC resistance characteristics (26.7 mOhm versus 28 mOhm) and higher continuous current rating (4.3 A versus 4.1 A). However, the reduced maximum operating temperature of 85°C and unshielded configuration limit applicability to systems where thermal headroom and EMI isolation are not critical constraints.

Selection between these parts depends on application-specific requirements for shielding effectiveness, thermal operating range, and physical envelope constraints.

Frequently Asked Questions (FAQ)

Q: Can UP2B-100-R replace SCRH124-100 in all applications?

A: UP2B-100-R meets the core electrical specifications (10 µH inductance, 4.3 A rating, 26.7 mOhm DCR) but differs in shielding architecture and maximum operating temperature. Substitution is valid only for applications where electromagnetic shielding is not required and operating temperature does not exceed 85°C.

Q: What is the significance of shielded versus unshielded construction?

A: Shielded inductors (SCRH124-100) minimize magnetic field coupling to adjacent circuit elements, reducing EMI and crosstalk in densely populated layouts. Unshielded inductors (UP2B-100-R) exhibit higher magnetic field radiation and are suitable for isolated component placement or applications where EMI is not a design constraint.

Q: Are the physical dimensions compatible?

A: Both parts use nonstandard surface mount packages with different footprints. SCRH124-100 measures 12.50 x 12.50 mm with 4.50 mm height, while UP2B-100-R measures 13.97 x 10.41 mm with 6.00 mm height. PCB layout verification is required before substitution.

Q: Do both parts meet current compliance standards?

A: Both SCRH124-100 and UP2B-100-R are RoHS3 compliant with REACH Unaffected status and EAR99 export classification, meeting current regulatory requirements for industrial and commercial electronics.

Q: What is the saturation current difference impact?

A: SCRH124-100 saturates at 4.5 A while UP2B-100-R saturates at 3.3 A. For applications operating near maximum current ratings, the lower saturation point of UP2B-100-R may result in inductance degradation under peak load conditions.