SCRH103R-220 Equivalent & Substitute Parts

Part Overview

The SCRH103R-220 is a 22 µH shielded surface mount inductor manufactured by Signal Transformer, designed for applications requiring fixed inductance with moderate current handling. This part is rated for 1.8 A continuous current with a maximum DC resistance of 145 mOhm and operates across the temperature range of -40°C to 125°C. The component is ROHS3 compliant and carries an MSL rating of 1 (Unlimited), indicating minimal moisture sensitivity. As an active product with 769 units in stock, equivalent alternatives exist for applications where supply constraints or specific performance parameters necessitate substitution.

Substiute Parts

SCRH103R-220

Signal TransformerIn Stock: 873SCRH103R-220 Datasheet

Current PartRFQ

CDRH103RNP-220NC-B

Sumida America Components Inc.In Stock: 2122CDRH103RNP-220NC-B Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The CDRH103RNP-220NC-B from Sumida America Components Inc. qualifies as a direct substitute based on the following alignment of critical electrical and mechanical parameters:

Inductance value matches at 22 µH with identical ±30% tolerance. Both parts maintain shielded construction and surface mount configuration. DC resistance specifications are comparable, with the substitute at 143 mOhm Max versus the original 145 mOhm Max, representing negligible variance within acceptable engineering tolerances. Both components are rated for operation within overlapping temperature ranges and carry ROHS3 compliance certification with MSL 1 rating.

The primary distinction lies in current rating capacity: the substitute part is rated for 1.6 A continuous current compared to the original 1.8 A specification. This parameter difference requires evaluation based on circuit requirements. Physical dimensions show minor variation (10.20mm x 10.00mm versus 10.50mm x 10.30mm), with identical seated height of 3.10mm, confirming mechanical compatibility within nonstandard package constraints.

Parameter Comparison

Engineering Selection Recommendations

Selection between the SCRH103R-220 and CDRH103RNP-220NC-B depends on circuit current requirements and operating temperature specifications. Both parts maintain ROHS3 compliance and MSL 1 certification, confirming regulatory equivalence for applications subject to environmental and hazardous substance restrictions.

The SCRH103R-220 supports continuous operation at 1.8 A across an extended temperature range to 125°C. The CDRH103RNP-220NC-B operates at 1.6 A maximum current with an upper temperature limit of 100°C. For applications operating at or near the 1.8 A specification or requiring sustained operation above 100°C, the original part maintains performance margins. For circuits operating below 1.6 A and within the -40°C to 100°C range, the substitute part provides equivalent electrical function with marginally lower DC resistance.

Both components are packaged in Tape & Reel format suitable for automated assembly processes. Physical dimensions are comparable with negligible footprint variation, confirming PCB layout compatibility.

Frequently Asked Questions (FAQ)

Q: Can the CDRH103RNP-220NC-B replace the SCRH103R-220 in all applications?

A: Substitution is valid when circuit current demand does not exceed 1.6 A and operating temperature remains within -40°C to 100°C. Applications requiring the full 1.8 A rating or temperatures above 100°C require the original SCRH103R-220 specification.

Q: Are the physical dimensions compatible for PCB layout?

A: Yes. Both parts measure 3.10mm in seated height. The substitute dimensions of 10.20mm x 10.00mm are slightly smaller than the original 10.50mm x 10.30mm, confirming mechanical compatibility within nonstandard package footprints.

Q: Do both parts meet the same regulatory requirements?

A: Yes. Both the SCRH103R-220 and CDRH103RNP-220NC-B carry ROHS3 compliance certification and MSL 1 (Unlimited) moisture sensitivity ratings, confirming equivalent regulatory status.

Q: What is the significance of the DC resistance difference?

A: The substitute part specifies 143 mOhm Max versus 145 mOhm Max for the original. This 2 mOhm variance is negligible and falls within normal manufacturing tolerances for shielded inductors in this category.

Q: How do the saturation current ratings compare?

A: The SCRH103R-220 saturates at 1.78 A while the CDRH103RNP-220NC-B saturates at 2.16 A. The substitute exhibits higher saturation current despite a lower continuous current rating, indicating different core material characteristics.

Q: Are both parts suitable for automated assembly?

A: Yes. Both components are supplied in Tape & Reel packaging format, confirming compatibility with standard surface mount assembly equipment and processes.