SCRH124B-101 Equivalent & Substitute Parts

Part Overview

The SCRH124B-101 is a 100 µH shielded surface mount inductor manufactured by Signal Transformer, rated for 1.36 A continuous current with a maximum DC resistance of 330mOhm. This component is classified as Active product status and is RoHS3 compliant. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances for this inductance value and current rating category.

Substiute Parts

SCRH124B-101

Signal TransformerIn Stock: 975SCRH124B-101 Datasheet

Current PartRFQ

DR124-101-R

Eaton - Electronics DivisionIn Stock: 1938DR124-101-R Datasheet

MFR RecommendedRFQ

UP2B-101-R

Eaton - Electronics DivisionIn Stock: 1232UP2B-101-R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SCRH124B-101 are qualified based on the following criteria:

Primary Electrical Parameters:

• Inductance value: 100 µH (±20% tolerance maintained)
• Current rating: minimum 1.2 A (meets or exceeds primary part specification)
• DC resistance: within acceptable range for circuit performance
• Operating temperature range: supports -40°C ~ 125°C minimum

Mechanical Parameters:

• Surface mount configuration
• Package footprint compatibility: 12.50mm x 12.50mm nominal dimensions
• Height clearance: seated height within acceptable PCB assembly constraints

Compliance Parameters:

• RoHS3 compliant
• Moisture sensitivity level MSL 1 (Unlimited)

Two substitute parts meet these criteria with variations in shielding configuration and current saturation characteristics.

Parameter Comparison

Engineering Selection Recommendations

DR124-101-R (Eaton - Electronics Division): This substitute maintains shielded configuration matching the primary part specification. Current rating of 1.5 A exceeds the SCRH124B-101 requirement of 1.36 A. DC resistance of 308mOhm is lower than the primary part maximum of 330mOhm, resulting in reduced power dissipation. Operating temperature range of -40°C ~ 125°C matches the primary part. Package footprint is identical at 12.50mm x 12.50mm with lower seated height of 4.50mm. All compliance certifications (RoHS3, MSL 1) are maintained. This part is suitable for direct substitution in applications requiring shielded inductors.

UP2B-101-R (Eaton - Electronics Division): This substitute features unshielded configuration, which differs from the primary part's shielded design. Current rating of 1.2 A is below the primary part specification of 1.36 A and saturation current of 950mA is significantly lower than the primary part's 1.2A. DC resistance of 270.7mOhm is lower than the primary part. Operating temperature range is limited to -40°C ~ 85°C, which does not support the full -40°C ~ 125°C range of the primary part. Package dimensions differ at 13.97mm x 10.41mm with increased seated height of 6.00mm. This part is suitable only for applications where unshielded configuration is acceptable, current requirements do not exceed 1.2 A, and operating temperature does not exceed 85°C.

Frequently Asked Questions (FAQ)

Q: Can DR124-101-R be used as a direct replacement for SCRH124B-101? A: Yes. Both parts maintain 100 µH inductance with ±20% tolerance, shielded configuration, identical package footprint of 12.50mm x 12.50mm, and matching operating temperature range of -40°C ~ 125°C. The DR124-101-R provides higher current rating (1.5 A vs 1.36 A) and lower DC resistance (308mOhm vs 330mOhm), making it functionally equivalent for this application category.

Q: What are the limitations of UP2B-101-R as a substitute? A: The UP2B-101-R differs in three critical aspects: (1) unshielded configuration versus shielded, which may affect EMI performance in sensitive circuits; (2) lower current rating of 1.2 A and saturation current of 950mA, which do not meet the primary part's 1.36 A specification; (3) reduced operating temperature range of -40°C ~ 85°C, which does not support applications requiring operation at temperatures above 85°C. Additionally, package dimensions are larger at 13.97mm x 10.41mm with increased height of 6.00mm, requiring PCB layout verification.

Q: Are all substitute parts RoHS3 compliant? A: Yes. Both DR124-101-R and UP2B-101-R are RoHS3 compliant with MSL 1 (Unlimited) moisture sensitivity level, matching the primary part SCRH124B-101 compliance status.

Q: What is the primary difference between the two substitute options? A: The primary difference is shielding configuration. DR124-101-R maintains shielded design matching the primary part, while UP2B-101-R is unshielded. Additionally, DR124-101-R supports the full operating temperature range and higher current ratings, while UP2B-101-R has reduced temperature range and current specifications.

Q: Can package size differences affect PCB assembly? A: Yes. UP2B-101-R has different package dimensions (13.97mm x 10.41mm vs 12.50mm x 12.50mm) and greater seated height (6.00mm vs 4.80mm). PCB layout and assembly clearance must be verified before substitution. DR124-101-R maintains identical footprint dimensions, eliminating this concern.