SCRH105R-820 Equivalent & Substitute Parts

Part Overview

The SCRH105R-820 is a 82 µH shielded surface mount inductor manufactured by Signal Transformer, rated for 1.5 A continuous current with a maximum DC resistance of 227 mOhm. This component is designed for applications requiring fixed inductance in compact nonstandard packages and is currently in active production status. Substitute parts are identified when equivalent electrical performance and mechanical compatibility can be maintained within the specified parameter tolerances.

Substiute Parts

SCRH105R-820

Signal TransformerIn Stock: 766SCRH105R-820 Datasheet

Current PartRFQ

CDRH105RNP-820NC

Sumida America Components Inc.In Stock: 1619CDRH105RNP-820NC Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SCRH105R-820 is determined by the following critical parameters:

• Inductance Value: Must be 82 µH within ±30% tolerance
• Current Rating: Minimum 1.45 A continuous current capability
• DC Resistance: Maximum 227 mOhm
• Shielding: Must be shielded construction
• Mounting Type: Surface mount only
• Package Compatibility: Nonstandard package with compatible physical dimensions
• Operating Temperature: Must support -40°C minimum; upper limit may vary
• Compliance: ROHS3 compliant; MSL 1 rating

The CDRH105RNP-820NC from Sumida America Components Inc. meets all substitution criteria within these parameters.

Parameter Comparison

Engineering Selection Recommendations

Both the SCRH105R-820 and CDRH105RNP-820NC are active production components with ROHS3 compliance and MSL 1 ratings, qualifying them for equivalent use in applications requiring 82 µH shielded surface mount inductors.

The SCRH105R-820 operates across a wider temperature range (-40°C to 125°C) compared to the CDRH105RNP-820NC (-40°C to 100°C). Selection between these parts should be based on application temperature requirements and component availability.

Both parts maintain identical inductance values, tolerance specifications, DC resistance maximums, and shielding characteristics. Physical dimensions are compatible within nonstandard package specifications. Current ratings of 1.5 A and 1.45 A are functionally equivalent for most circuit applications.

Frequently Asked Questions (FAQ)

Q: Can CDRH105RNP-820NC replace SCRH105R-820 in all applications?

A: The CDRH105RNP-820NC is electrically and mechanically compatible with the SCRH105R-820 for applications operating within -40°C to 100°C. Applications requiring operation above 100°C must use the SCRH105R-820.

Q: Are the physical dimensions interchangeable?

A: The SCRH105R-820 measures 10.50 x 10.30 mm while the CDRH105RNP-820NC measures 10.20 x 10.00 mm. Both share identical seated height of 5.10 mm. Verify PCB layout tolerances before substitution.

Q: What is the significance of the ±30% inductance tolerance?

A: The ±30% tolerance indicates the acceptable range of inductance variation from the nominal 82 µH value. Both parts share this tolerance specification, ensuring equivalent performance predictability in circuit design.

Q: Do both parts meet the same compliance standards?

A: Yes. Both SCRH105R-820 and CDRH105RNP-820NC are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity ratings, meeting equivalent environmental and regulatory requirements.

Q: What is the difference in saturation current between these parts?

A: The SCRH105R-820 has Isat of 1.2 A while the CDRH105RNP-820NC has Isat of 1.5 A. Both support continuous current ratings of 1.5 A and 1.45 A respectively, with no functional impact on standard circuit applications.