LD1-5R6-R Equivalent & Substitute Parts

Part Overview

The LD1-5R6-R is a 5.6 µH unshielded drum core wirewound inductor manufactured by Eaton - Electronics Division. This surface mount component is designed for applications requiring fixed inductance with a current rating of 1.51 A and maximum DC resistance of 101 mOhm. The part is currently active in production with RoHS compliance and unlimited moisture sensitivity rating. Substitute parts are identified when equivalent electrical and mechanical specifications are required due to inventory constraints, supply chain considerations, or design flexibility needs.

Substiute Parts

LD1-5R6-R

Eaton - Electronics DivisionIn Stock: 832LD1-5R6-R Datasheet

Current PartRFQ

SDR0403-5R6ML

Bourns Inc.In Stock: 6670SDR0403-5R6ML Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LD1-5R6-R is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

• Inductance value: 5.6 µH with ±20% tolerance
• Current rating: minimum 1.51 A continuous
• Saturation current: minimum 1.75 A
• DC resistance: maximum 101 mOhm
• Core material: Ferrite
• Shielding configuration: Unshielded

Mechanical Equivalence Criteria:

• Mounting type: Surface Mount
• Physical footprint: 4.50 x 4.00 mm base dimensions
• Height: compatible with 3.20 mm seated height specification
• Package type: Nonstandard drum core configuration

Compliance Criteria:

• RoHS compliance status
• Operating temperature range: -40°C to 125°C
• Moisture sensitivity level: 1 (Unlimited)

The SDR0403-5R6ML meets all substitution criteria with equivalent or superior electrical performance and identical mechanical compatibility.

Parameter Comparison

Engineering Selection Recommendations

Primary Part Selection (LD1-5R6-R): The LD1-5R6-R remains the specified component when Eaton sourcing is required or when design validation has been completed with this specific manufacturer's part. The component carries RoHS compliance certification and is actively produced with 756 units in current inventory.

Substitute Part Selection (SDR0403-5R6ML): The SDR0403-5R6ML from Bourns Inc. is a direct functional substitute meeting all electrical and mechanical requirements. This part offers superior performance margins with 1.6 A current rating versus 1.51 A, 2.4 A saturation current versus 1.75 A, and 100 mOhm DC resistance versus 101 mOhm maximum. The SDR0403-5R6ML carries ROHS3 compliance and maintains identical operating temperature specifications. With 6616 units in inventory, this substitute provides enhanced supply availability. The 0.30 mm height differential (3.50 mm versus 3.20 mm) remains within standard PCB assembly tolerances for surface mount applications.

Compliance Considerations: Both parts satisfy RoHS requirements and operate across the identical temperature range of -40°C to 125°C. Both components feature unlimited moisture sensitivity rating (MSL 1), eliminating special handling requirements during storage and assembly.

Frequently Asked Questions (FAQ)

Q: Can SDR0403-5R6ML be used as a direct replacement for LD1-5R6-R in existing designs?

A: Yes. The SDR0403-5R6ML meets all electrical specifications with equivalent inductance (5.6 µH ±20%), identical core material (ferrite), matching shielding configuration (unshielded), and compatible current ratings (1.6 A versus 1.51 A). Physical footprint dimensions are identical at 4.50 x 4.00 mm. The height difference of 0.30 mm (3.50 mm versus 3.20 mm) is within standard surface mount assembly tolerances.

Q: What are the key electrical differences between these parts?

A: The SDR0403-5R6ML provides superior electrical performance margins. Current rating is 1.6 A compared to 1.51 A, saturation current is 2.4 A versus 1.75 A, and DC resistance is 100 mOhm maximum versus 101 mOhm. These differences represent improved performance headroom without changing the core inductance value or tolerance specification.

Q: Are there any compliance or certification differences?

A: Both parts are RoHS compliant. The LD1-5R6-R carries standard RoHS certification, while the SDR0403-5R6ML carries ROHS3 certification, representing a more recent compliance standard. Both parts maintain unlimited moisture sensitivity rating (MSL 1) and operate across -40°C to 125°C.

Q: What is the physical height difference and does it affect PCB layout?

A: The LD1-5R6-R has a maximum seated height of 3.20 mm, while the SDR0403-5R6ML is 3.50 mm maximum. This 0.30 mm difference is within standard PCB assembly tolerances and does not typically require layout modifications for surface mount applications. Verify clearance requirements for your specific application if height-constrained designs are involved.

Q: Can these parts be used interchangeably in high-frequency applications?

A: Both parts are unshielded ferrite drum core inductors designed for the specified inductance value. The SDR0403-5R6ML provides additional frequency response data (Q of 28 @ 7.96 MHz and self-resonant frequency of 45 MHz). For applications requiring specific frequency response characteristics, verify that the substitute part's frequency performance meets your circuit requirements.

Q: What inventory considerations should guide part selection?

A: The LD1-5R6-R has 756 units in current stock, while the SDR0403-5R6ML has 6616 units available. For applications with extended lead time requirements or high-volume production, the SDR0403-5R6ML provides significantly greater supply availability.