SCRH127B-100 Equivalent & Substitute Parts

Part Overview

The SCRH127B-100 is a 10 µH shielded surface mount inductor manufactured by Signal Transformer, rated for 5.67 A continuous current with a maximum DC resistance of 21.6mOhm. 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

SCRH127B-100

Signal TransformerIn Stock: 717SCRH127B-100 Datasheet

Current PartRFQ

B82477G4103M000

EPCOS - TDK ElectronicsIn Stock: 16528B82477G4103M000 Datasheet

MFR RecommendedRFQ

B82477P4103M000

EPCOS - TDK ElectronicsIn Stock: 2300B82477P4103M000 Datasheet

MFR RecommendedRFQ

DR124-100-R

Eaton - Electronics DivisionIn Stock: 4886DR124-100-R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SCRH127B-100 are qualified based on the following criteria:

• Inductance value: 10 µH (matching specification)
• Tolerance: ±20% (matching specification)
• Shielding: Shielded construction required
• Mounting type: Surface Mount required
• Current rating: Minimum 4.5 A (acceptable for applications requiring 5.67 A with thermal margin consideration)
• DC resistance: Maximum 28mOhm (acceptable variance from 21.6mOhm specification)
• Operating temperature range: Minimum -40°C ~ 125°C
• Packaging: Tape & Reel (TR) format
• Compliance: ROHS3 compliant

The three identified substitutes (B82477G4103M000, B82477P4103M000, and DR124-100-R) meet these core electrical and mechanical requirements while maintaining functional equivalence within the 10 µH shielded inductor category.

Parameter Comparison

Engineering Selection Recommendations

B82477P4103M000 (EPCOS - TDK Electronics)

This substitute offers the closest electrical match to the SCRH127B-100, with a current rating of 5.8 A exceeding the original specification and DC resistance of 19mOhm lower than the original 21.6mOhm. The extended operating temperature range (-55°C ~ 150°C) provides additional thermal margin. AEC-Q200 automotive qualification is included. Height dimension of 8.50mm requires PCB layout verification for clearance compatibility.

B82477G4103M000 (EPCOS - TDK Electronics)

This substitute maintains equivalent current rating (5.4 A) and DC resistance (22mOhm) characteristics comparable to the original part. Operating temperature range of -55°C ~ 125°C provides extended low-temperature performance. Footprint dimensions of 12.80mm x 12.80mm require verification against PCB layout constraints.

DR124-100-R (Eaton - Electronics Division)

This substitute is suitable for applications where current requirements do not exceed 4.5 A continuous operation. DC resistance of 28mOhm represents the maximum acceptable variance. The reduced height of 4.50mm provides advantage in space-constrained applications. Operating temperature range matches the original specification at -40°C ~ 125°C.

All three substitutes maintain ROHS3 compliance and Tape & Reel packaging format required for automated assembly processes.

Frequently Asked Questions (FAQ)

Q: Can B82477G4103M000 be used as a direct replacement for SCRH127B-100?

A: B82477G4103M000 qualifies as a substitute based on matching inductance (10 µH), tolerance (±20%), shielding, and surface mount configuration. Current rating of 5.4 A is slightly lower than the original 5.67 A specification. DC resistance of 22mOhm is within acceptable variance. Verify application current requirements do not exceed 5.4 A continuous operation.

Q: What are the key differences between B82477P4103M000 and B82477G4103M000?

A: Both parts are 10 µH shielded inductors from EPCOS - TDK Electronics. B82477P4103M000 offers higher current rating (5.8 A vs 5.4 A), lower DC resistance (19mOhm vs 22mOhm), extended temperature range (-55°C ~ 150°C vs -55°C ~ 125°C), and AEC-Q200 automotive qualification. Height dimension is 8.50mm versus 8.00mm, requiring PCB clearance verification.

Q: Is DR124-100-R suitable for high-current applications?

A: DR124-100-R is rated for 4.5 A continuous current, which is lower than the original SCRH127B-100 specification of 5.67 A. This substitute is appropriate for applications requiring maximum 4.5 A operation. The advantage is reduced height (4.50mm) for space-constrained designs.

Q: Do all substitutes maintain the same footprint dimensions?

A: No. SCRH127B-100, B82477P4103M000, and DR124-100-R share 12.50mm x 12.50mm footprint dimensions. B82477G4103M000 has a slightly larger footprint of 12.80mm x 12.80mm. Height dimensions vary: 8.00mm (SCRH127B-100 and B82477G4103M000), 8.50mm (B82477P4103M000), and 4.50mm (DR124-100-R). Verify PCB layout compatibility before selection.

Q: Are all substitutes RoHS compliant?

A: Yes. SCRH127B-100 and all three substitutes (B82477G4103M000, B82477P4103M000, DR124-100-R) are ROHS3 compliant and suitable for applications requiring RoHS certification.

Q: What is the significance of AEC-Q200 rating on B82477P4103M000?

A: AEC-Q200 is an automotive electronics qualification standard. B82477P4103M000 carries this certification, indicating suitability for automotive applications with enhanced reliability requirements. The original SCRH127B-100 does not list AEC-Q200 qualification.