SC3326F-221 Equivalent & Substitute Parts

Part Overview

The SC3326F-221 is a 220 µH unshielded wirewound surface mount inductor manufactured by Signal Transformer, rated for 860 mA continuous current with a maximum DC resistance of 600mOhm. This component is classified as Active product status and is ROHS3 compliant. Substitute parts are identified when equivalent inductance values, current ratings, and DC resistance specifications align within acceptable engineering tolerances for the application, enabling procurement flexibility and supply chain continuity.

Substiute Parts

SC3326F-221

Signal TransformerIn Stock: 1100SC3326F-221 Datasheet

Current PartRFQ

B82476A1224M000

EPCOS - TDK ElectronicsIn Stock: 2086B82476A1224M000 Datasheet

MFR RecommendedRFQ

B82476B1224M100

EPCOS - TDK ElectronicsIn Stock: 2135B82476B1224M100 Datasheet

MFR RecommendedRFQ

UP2B-221-R

Eaton - Electronics DivisionIn Stock: 1967UP2B-221-R Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the SC3326F-221 is determined by the following criteria:

• Inductance value of 220 µH with ±20% tolerance
• Current rating sufficient to support 860 mA continuous operation
• DC resistance not exceeding 600mOhm maximum
• Unshielded configuration
• Surface mount packaging
• ROHS3 compliance
• Tape & Reel packaging format

The three identified substitute parts meet these core electrical and mechanical parameters, enabling direct replacement in applications where the SC3326F-221 is specified.

Parameter Comparison

Engineering Selection Recommendations

All three substitute parts maintain Active product status and ROHS3 compliance, ensuring regulatory alignment with the original SC3326F-221 specification.

B82476A1224M000 and B82476B1224M100 are manufactured by EPCOS - TDK Electronics with extended operating temperature ranges (-55°C ~ 150°C) and reduced DC resistance (530mOhm), providing improved thermal performance and lower power dissipation. B82476B1224M100 carries AEC-Q200 automotive qualification.

UP2B-221-R, manufactured by Eaton Electronics Division under the UNI-PAC™ series, operates within the original temperature range (-40°C ~ 85°C) with DC resistance of 671.7mOhm, which remains within the 600mOhm maximum specification of the SC3326F-221.

Current rating considerations: B82476A1224M000 is rated at 800 mA, which is below the original 860 mA specification. B82476B1224M100 at 880 mA and UP2B-221-R at 773 mA both support the required current envelope, though UP2B-221-R operates at reduced margin.

Frequently Asked Questions (FAQ)

Q: Can B82476A1224M000 be used as a direct replacement for SC3326F-221?

A: B82476A1224M000 meets the inductance, tolerance, shielding, and mounting requirements. However, its 800 mA current rating is 60 mA below the original 860 mA specification. Substitution is valid only if the application current demand does not exceed 800 mA.

Q: What is the primary advantage of B82476B1224M100 over the original SC3326F-221?

A: B82476B1224M100 provides 880 mA current rating (20 mA above original), reduced DC resistance (530mOhm vs. 600mOhm), extended temperature range (-55°C ~ 150°C vs. -40°C ~ 125°C), and AEC-Q200 automotive qualification. These characteristics enable operation in more demanding thermal and current environments.

Q: Is UP2B-221-R suitable for high-temperature applications?

A: UP2B-221-R operates within -40°C ~ 85°C, which is narrower than the original -40°C ~ 125°C range. It is not suitable for applications requiring sustained operation above 85°C.

Q: How do DC resistance values affect component selection?

A: DC resistance directly impacts power dissipation and thermal performance. B82476A1224M000 and B82476B1224M100 at 530mOhm generate less heat than SC3326F-221 at 600mOhm. UP2B-221-R at 671.7mOhm exceeds the original specification and generates additional heat. Selection depends on thermal budget constraints.

Q: Are all substitute parts available in Tape & Reel packaging?

A: Yes. SC3326F-221, B82476A1224M000, B82476B1224M100, and UP2B-221-R are all supplied in Tape & Reel (TR) format, enabling compatibility with automated assembly processes.

Q: What is the significance of the 100 kHz inductance test frequency?

A: All parts, including the original and substitutes, are characterized at 100 kHz. This standardized test frequency ensures consistent inductance measurement across all components and enables direct electrical comparison.