SD8328-330-R Equivalent & Substitute Parts

Part Overview

The SD8328-330-R is a 33 µH shielded drum core wirewound inductor manufactured by Eaton - Electronics Division. This surface mount component is rated for 1.45 A continuous current with a maximum DC resistance of 156 mOhm and operates across the temperature range of -40°C to 125°C. The part is RoHS Compliant and carries an MSL rating of 1 (Unlimited), indicating robust moisture tolerance for standard storage and handling conditions.

The SD8328-330-R maintains Active product status with 929 pieces currently in stock. Equivalent and substitute parts are identified to support procurement flexibility, inventory management, and supply chain continuity when the primary part becomes unavailable or when design requirements permit functional alternatives.

Substiute Parts

SD8328-330-R

Eaton - Electronics DivisionIn Stock: 993SD8328-330-R Datasheet

Current PartRFQ

SRU8028-330Y

Bourns Inc.In Stock: 6491SRU8028-330Y Datasheet

DirectRFQ

CDRH8D38NP-330NC

Sumida America Components Inc.In Stock: 2187CDRH8D38NP-330NC Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the SD8328-330-R are qualified based on the following critical parameters:

Inductance Value: All substitute parts must maintain 33 µH inductance with ±30% tolerance, measured at 100 kHz test frequency.

Core Material & Shielding: All substitutes utilize ferrite core material with shielding to maintain electromagnetic isolation and performance consistency.

Current Rating & Saturation: Substitute parts must support the application's current requirements. The SD8328-330-R operates at 1.45 A continuous current with 1.4 A saturation current. Substitutes with equal or higher current ratings are functionally compatible.

DC Resistance: Maximum DCR values must remain within acceptable limits for the application. The SD8328-330-R specifies 156 mOhm maximum; substitutes with comparable or lower DCR values maintain thermal and efficiency characteristics.

Operating Temperature Range: All substitutes operate across -40°C to 125°C, ensuring thermal compatibility with the primary part.

Surface Mount Packaging: All parts utilize surface mount technology with nonstandard package dimensions, maintaining PCB assembly compatibility.

Compliance & Certifications: All substitutes carry RoHS compliance and MSL 1 rating, ensuring regulatory and environmental compatibility.

Parameter Comparison

Engineering Selection Recommendations

SD8328-330-R (Primary Part): Active product status with 929 pieces in stock. RoHS Compliant with MSL 1 rating. Operates across full -40°C to 125°C temperature range. Suitable for applications requiring 1.45 A continuous current capacity.

SRU8028-330Y (Bourns Inc.): Direct substitute with Active product status and 6400 pieces in inventory. ROHS3 Compliant with MSL 1 rating. Operates across full -40°C to 125°C temperature range. Current rating of 1.3 A is lower than the primary part; suitable for applications with maximum current requirements at or below 1.3 A. DC resistance of 147 mOhm is lower than the primary part, providing improved thermal efficiency. Smaller footprint (8.00mm x 8.00mm) compared to primary part (9.50mm x 8.30mm) may provide PCB layout advantages.

CDRH8D38NP-330NC (Sumida America Components Inc.): Similar substitute with Active product status and 2090 pieces in inventory. ROHS3 Compliant with MSL 1 rating. Current rating of 1.6 A exceeds the primary part, supporting higher current applications. Saturation current of 1.75 A provides additional margin. Operating temperature range limited to -40°C to 100°C; not suitable for applications requiring operation above 100°C. Increased height of 4.00 mm compared to primary part (3.00 mm) requires PCB clearance verification. Smaller footprint (8.00mm x 8.00mm) in length and width dimensions.

Frequently Asked Questions (FAQ)

Q: Can the SRU8028-330Y replace the SD8328-330-R in all applications?

A: The SRU8028-330Y is functionally compatible for applications where the continuous current requirement does not exceed 1.3 A. The saturation current of 1.1 A is lower than the primary part's 1.4 A. Applications requiring the full 1.45 A continuous current capacity of the SD8328-330-R must use the primary part or the CDRH8D38NP-330NC.

Q: What are the physical compatibility considerations when substituting parts?

A: The SD8328-330-R measures 9.50mm L x 8.30mm W x 3.00mm H. The SRU8028-330Y measures 8.00mm L x 8.00mm W x 3.10mm H, offering a smaller footprint with minimal height difference. The CDRH8D38NP-330NC measures 8.00mm L x 8.00mm W x 4.00mm H, with significantly increased height that requires verification of available PCB clearance above the component.

Q: Are all substitute parts RoHS compliant?

A: Yes. The SD8328-330-R is RoHS Compliant. Both substitute parts, SRU8028-330Y and CDRH8D38NP-330NC, are ROHS3 Compliant, meeting current regulatory requirements.

Q: What is the moisture sensitivity rating for these parts?

A: All three parts carry MSL 1 (Unlimited) rating, indicating unlimited shelf life under standard storage conditions without desiccant requirements.

Q: Can the CDRH8D38NP-330NC be used in applications operating above 100°C?

A: No. The CDRH8D38NP-330NC operating temperature range is -40°C to 100°C. Applications requiring operation above 100°C must use the SD8328-330-R or SRU8028-330Y, both rated to 125°C.

Q: How do DC resistance values compare across the three parts?

A: The SD8328-330-R specifies 156 mOhm maximum. The SRU8028-330Y provides 147 mOhm, offering lower resistance and improved thermal efficiency. The CDRH8D38NP-330NC specifies 157 mOhm maximum, comparable to the primary part.

Q: What inductance tolerance applies to all parts?

A: All three parts maintain ±30% inductance tolerance, measured at 100 kHz test frequency, ensuring consistent performance across the specified tolerance band.