SD10-101-R Equivalent & Substitute Parts Reference

Part Overview

The SD10-101-R is a 100 µH shielded drum core wirewound inductor manufactured by Eaton - Electronics Division. This surface mount component is rated for 225 mA continuous current with a DC resistance of 3.29 Ohm and operates across the temperature range of -40°C to 85°C. The part is RoHS Compliant and carries an MSL rating of 1 (Unlimited), indicating suitability for standard storage and handling conditions.

The SD10-101-R remains in active production status. Identifying equivalent substitute parts is necessary to address supply chain continuity, inventory optimization, and application-specific performance requirements where alternative electrical or mechanical characteristics may provide operational advantages.

Substiute Parts

SD10-101-R

Eaton - Electronics DivisionIn Stock: 994SD10-101-R Datasheet

Current PartRFQ

SRR4011-101YL

Bourns Inc.In Stock: 2200SRR4011-101YL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the SD10-101-R is determined by strict equivalence across the following critical parameters:

Primary Equivalence Criteria:

• Inductance value: 100 µH (fixed requirement)
• Core type: Ferrite drum core, wirewound (fixed requirement)
• Shielding: Shielded configuration (fixed requirement)
• Mounting: Surface mount technology (fixed requirement)
• Package classification: Nonstandard (fixed requirement)

Allowable Variation Parameters:

• Inductance tolerance: ±20% to ±30% acceptable
• Current rating: Minimum 225 mA; higher ratings permissible
• DC resistance: 2.4 Ohm to 3.29 Ohm acceptable
• Operating temperature: Minimum -40°C to 85°C; extended ranges acceptable
• Saturation current: Minimum 236 mA; higher values acceptable
• RoHS compliance: RoHS Compliant or ROHS3 Compliant acceptable

The SRR4011-101YL from Bourns Inc. meets all primary equivalence criteria and operates within allowable variation parameters for current rating, DC resistance, and temperature range.

Parameter Comparison

Engineering Selection Recommendations

SD10-101-R (Eaton - Electronics Division)

Select the SD10-101-R when the original design specification requires the exact DC resistance of 3.29 Ohm and the narrower operating temperature range of -40°C to 85°C is sufficient for the application. This part maintains active production status and carries RoHS Compliant certification. The ±20% inductance tolerance provides tighter specification control.

SRR4011-101YL (Bourns Inc.)

Select the SRR4011-101YL when the application benefits from lower DC resistance (2.4 Ohm maximum), higher current handling capability (310 mA rating versus 225 mA), or extended operating temperature range (-40°C to 125°C). The smaller footprint (4.80 x 4.80 mm versus 5.20 x 5.20 mm) accommodates space-constrained PCB layouts. This part carries ROHS3 Compliant certification and maintains active production status. The ±30% inductance tolerance is acceptable for applications where tighter tolerance is not critical.

Both parts are surface mount, shielded ferrite drum core wirewound inductors with 100 µH inductance, unlimited MSL rating, and equivalent functional performance in standard circuit applications.

Frequently Asked Questions (FAQ)

Q: Can the SRR4011-101YL directly replace the SD10-101-R in existing designs?

A: The SRR4011-101YL is electrically compatible as a substitute. The lower DC resistance (2.4 Ohm versus 3.29 Ohm) and higher current rating (310 mA versus 225 mA) provide equivalent or improved performance. The smaller footprint (4.80 x 4.80 mm) fits within the original 5.20 x 5.20 mm space allocation. The slightly increased height (1.30 mm versus 1.00 mm) must be verified against PCB clearance constraints.

Q: What is the significance of the inductance tolerance difference (±20% versus ±30%)?

A: The SD10-101-R specifies ±20% tolerance, providing tighter inductance control. The SRR4011-101YL specifies ±30% tolerance, allowing wider variation. For applications where inductance precision is critical to circuit performance, the SD10-101-R maintains stricter specification. For general-purpose filtering, coupling, or energy storage applications, the ±30% tolerance of the SRR4011-101YL is functionally acceptable.

Q: Are there thermal performance differences between these parts?

A: The SRR4011-101YL operates across -40°C to 125°C, extending 40°C above the SD10-101-R range of -40°C to 85°C. The lower DC resistance of the SRR4011-101YL (2.4 Ohm versus 3.29 Ohm) generates less resistive heating at equivalent current levels, contributing to improved thermal performance in high-current applications.

Q: How do the saturation current ratings affect substitution?

A: The SD10-101-R saturates at 236 mA; the SRR4011-101YL saturates at 270 mA. Both parts maintain linear inductance behavior below their saturation points. The SRR4011-101YL provides additional margin before saturation occurs, beneficial for applications approaching the 225 mA continuous current limit.

Q: Are both parts RoHS compliant?

A: Yes. The SD10-101-R carries RoHS Compliant certification. The SRR4011-101YL carries ROHS3 Compliant certification. Both meet current environmental compliance requirements for electronic component manufacturing and use.

Q: What packaging considerations apply to these parts?

A: Both parts are supplied in Tape & Reel (TR) packaging for automated assembly. Both carry MSL rating 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling. Standard component storage and handling procedures apply to both parts.