SC63LCB-820 Equivalent & Substitute Parts

Part Overview

The SC63LCB-820 is a 82 µH shielded inductor manufactured by Signal Transformer, rated for 890 mA continuous current with a maximum DC resistance of 413 mOhm. This surface mount component operates across the industrial temperature range of -40°C to 125°C and is ROHS3 compliant. The part is currently active in production with 1096 units in stock. 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

SC63LCB-820

Signal TransformerIn Stock: 1195SC63LCB-820 Datasheet

Current PartRFQ

DR73-820-R

Eaton - Electronics DivisionIn Stock: 3201DR73-820-R Datasheet

MFR RecommendedRFQ

DRA74-820-R

Eaton - Electronics DivisionIn Stock: 1064DRA74-820-R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SC63LCB-820 are qualified based on the following critical parameters:

• Inductance Value: 82 µH with ±20% tolerance
• Current Rating: Minimum 860 mA continuous current capability
• DC Resistance: Maximum 413 mOhm to maintain thermal and efficiency characteristics
• Shielding: Shielded construction required
• Mounting: Surface mount, nonstandard package
• Temperature Range: Minimum -40°C to 125°C operating window
• Compliance: ROHS3 compliant

The identified substitutes (DR73-820-R and DRA74-820-R) meet these electrical and mechanical requirements while maintaining functional equivalence in 82 µH inductor applications.

Parameter Comparison

Engineering Selection Recommendations

Both DR73-820-R and DRA74-820-R are active production parts from Eaton - Electronics Division and maintain ROHS3 compliance equivalent to the SC63LCB-820.

The DR73-820-R provides a direct functional match with 860 mA current rating and 384 mOhm DCR, operating within the same -40°C to 125°C temperature window as the original part.

The DRA74-820-R offers extended temperature capability to 165°C with improved saturation current performance (1.034 A) and lower DCR (367 mOhm). This part includes AEC-Q200 automotive qualification, providing additional reliability documentation for applications requiring automotive-grade components.

All three parts are surface mount, shielded 82 µH inductors with nonstandard packages and meet the core electrical specifications for 82 µH inductor applications at the specified current levels.

Frequently Asked Questions (FAQ)

Q: Can DR73-820-R replace SC63LCB-820 in all applications?

A: DR73-820-R meets the core electrical parameters: 82 µH inductance, 860 mA current rating, 384 mOhm DCR, shielded construction, and -40°C to 125°C operating range. Substitution is valid for applications within these specifications.

Q: What is the difference between DR73-820-R and DRA74-820-R?

A: Both are 82 µH shielded inductors from Eaton. DRA74-820-R extends the operating temperature to 165°C, provides higher saturation current (1.034 A vs 890 mA), lower DCR (367 mOhm vs 384 mOhm), and includes AEC-Q200 automotive qualification. DR73-820-R maintains the standard -40°C to 125°C range.

Q: Are physical dimensions compatible between these parts?

A: SC63LCB-820 measures 6.30mm x 6.20mm x 3.00mm. DR73-820-R measures 7.60mm x 7.60mm x 4.65mm. DRA74-820-R measures 7.60mm x 7.60mm x 4.35mm. Physical layout verification is required for PCB integration.

Q: Do all parts have the same moisture sensitivity level?

A: Yes, all three parts have MSL 1 (Unlimited), indicating no moisture sensitivity restrictions.

Q: Which part should be selected for automotive applications?

A: DRA74-820-R includes AEC-Q200 automotive qualification. Selection should be based on application temperature requirements and qualification documentation needs.