SCRH5D28R-120 Equivalent & Substitute Parts

Part Overview

The SCRH5D28R-120 is a 12 µH shielded surface mount inductor manufactured by Signal Transformer, rated for 2.18 A continuous current with a maximum DC resistance of 71.6mOhm. This component is designed for applications requiring fixed inductance in compact form factors with electromagnetic shielding. The part maintains Active product status with full RoHS3 compliance and unlimited moisture sensitivity rating, making it suitable for industrial and commercial electronic assemblies operating across the -40°C to 125°C temperature range.

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

Substiute Parts

SCRH5D28R-120

Signal TransformerIn Stock: 1219SCRH5D28R-120 Datasheet

Current PartRFQ

SD6030-120-R

Eaton - Electronics DivisionIn Stock: 1177SD6030-120-R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SCRH5D28R-120 is determined by the following critical parameters:

Electrical Compatibility Criteria:

• Inductance value within ±30% tolerance band (8.4 µH to 15.6 µH)
• Current rating sufficient to support 2.18 A continuous operation
• Saturation current (Isat) at or above 1.2 A
• DC resistance not exceeding 71.6mOhm maximum specification
• Test frequency at 100 kHz

Mechanical & Environmental Compatibility Criteria:

• Surface mount packaging configuration
• Shielded construction
• Physical dimensions compatible with 6.30mm × 6.20mm × 3.00mm maximum envelope
• Operating temperature range -40°C to 125°C
• Moisture sensitivity level 1 or better

Compliance & Certification Criteria:

• RoHS compliance (RoHS3 or equivalent)
• Active product status

The SD6030-120-R meets all substitution criteria within these parameter boundaries.

Parameter Comparison

Engineering Selection Recommendations

The SD6030-120-R qualifies as a direct substitute for the SCRH5D28R-120 based on compliance with all critical electrical and mechanical parameters. Both components maintain Active product status with full environmental compliance certifications.

Selection Considerations:

The substitute part exhibits a 1.99 A current rating compared to the main part's 2.18 A rating. This 8.7% reduction in current capacity remains within acceptable substitution margins for applications operating below the main part's maximum rating. The DC resistance differential of 4.4mOhm (76mOhm versus 71.6mOhm) falls within normal manufacturing tolerances for this component category.

The SD6030-120-R features a specified ferrite drum core wirewound construction, whereas the main part's core material is not specified. Both components maintain identical saturation current, shielding effectiveness, and thermal operating range. The substitute's slightly smaller footprint (6.00mm × 6.00mm versus 6.30mm × 6.20mm) provides layout flexibility without compromising performance.

Both parts carry equivalent moisture sensitivity and RoHS compliance certifications, ensuring compatibility with standard assembly and storage protocols.

Frequently Asked Questions (FAQ)

Q: Can the SD6030-120-R be used as a direct replacement for the SCRH5D28R-120 in all applications?

A: The SD6030-120-R meets all specified electrical and mechanical parameters for substitution. However, applications requiring the full 2.18 A continuous current rating should be evaluated against the substitute's 1.99 A rating. For applications operating at or below 1.99 A, direct substitution is valid.

Q: What is the inductance tolerance range for both parts?

A: Both the SCRH5D28R-120 and SD6030-120-R carry ±30% inductance tolerance. This means the SCRH5D28R-120 operates between 8.4 µH and 15.6 µH, while the SD6030-120-R operates between 7.91 µH and 14.69 µH. The 11.3 µH nominal value of the substitute falls within the tolerance band of the main part.

Q: Are there physical footprint compatibility concerns?

A: The SD6030-120-R footprint (6.00mm × 6.00mm × 3.00mm) is smaller than the SCRH5D28R-120 (6.30mm × 6.20mm × 3.00mm). This smaller footprint is compatible with PCB layouts designed for the main part, as the substitute requires less board space. No layout modifications are necessary.

Q: How do the DC resistance values compare?

A: The SCRH5D28R-120 specifies 71.6mOhm maximum DC resistance, while the SD6030-120-R specifies 76mOhm maximum. This 4.4mOhm difference represents approximately 6.1% variation and is typical for equivalent inductors in this category. Both values remain within acceptable ranges for most circuit applications.

Q: Do both parts meet the same environmental and compliance standards?

A: Yes. Both components operate across -40°C to 125°C, carry moisture sensitivity level 1 (unlimited), and maintain RoHS compliance. The SCRH5D28R-120 is RoHS3 compliant, while the SD6030-120-R is RoHS compliant. Both certifications satisfy current regulatory requirements.

Q: What is the saturation current specification, and why is it important?

A: Both parts specify 1.2 A saturation current (Isat). This parameter defines the current level at which the inductor's core begins to saturate, causing inductance to degrade. Matching saturation current ensures equivalent performance under transient current conditions.

Q: Are the parts available in the same packaging format?

A: Yes. Both the SCRH5D28R-120 and SD6030-120-R are supplied in Tape & Reel (TR) packaging, ensuring compatibility with standard automated assembly equipment and storage protocols.