LD2-180-R Equivalent & Substitute Parts

Part Overview

The LD2-180-R is an 18 µH unshielded drum core wirewound inductor manufactured by Eaton - Electronics Division. This surface mount component is rated for 3.19 A continuous current with a maximum DC resistance of 100 mOhm and operates across the temperature range of -40°C to 125°C. The part is currently active in production and RoHS compliant, making it suitable for modern electronic applications requiring fixed inductance in compact form factors.

Substitute parts are identified when equivalent electrical and mechanical specifications are available from alternative manufacturers, enabling procurement flexibility, inventory optimization, or supply chain continuity.

Substiute Parts

LD2-180-R

Eaton - Electronics DivisionIn Stock: 1024LD2-180-R Datasheet

Current PartRFQ

SDR0805-180ML

Bourns Inc.In Stock: 5487SDR0805-180ML Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LD2-180-R is determined by the following critical parameters:

Electrical Specifications:

• Inductance value: 18 µH with ±20% tolerance
• DC resistance: 100 mOhm maximum
• Core material: Ferrite
• Shielding configuration: Unshielded

Mechanical Specifications:

• Mounting type: Surface mount
• Package type: Nonstandard drum core form factor
• Operating temperature range: -40°C to 125°C

Compliance Requirements:

• RoHS compliance status
• Moisture sensitivity level: 1 (Unlimited)

The SDR0805-180ML from Bourns Inc. meets the core electrical and mechanical substitution criteria. However, the current rating differs between the main part (3.19 A) and the substitute (1.6 A), which represents a functional limitation that must be evaluated within the specific application context.

Parameter Comparison

Engineering Selection Recommendations

Both the LD2-180-R and SDR0805-180ML share identical inductance values, tolerance specifications, DC resistance ratings, core materials, and operating temperature ranges. Both components are RoHS compliant and carry unlimited moisture sensitivity ratings, supporting deployment in standard manufacturing and storage environments.

The primary distinction between these parts is the current rating specification. The LD2-180-R supports 3.19 A continuous current, while the SDR0805-180ML is rated for 1.6 A. Selection between these components depends on the actual current requirements of the application circuit. Applications requiring current levels between 1.6 A and 3.19 A must use the LD2-180-R to ensure reliable operation within component ratings.

Both parts are active products with current manufacturing status and established supply availability.

Frequently Asked Questions (FAQ)

Q: Can the SDR0805-180ML replace the LD2-180-R in all applications?

A: The SDR0805-180ML matches the LD2-180-R in inductance value, tolerance, DC resistance, core material, shielding, and operating temperature range. However, the SDR0805-180ML has a lower current rating of 1.6 A compared to the LD2-180-R's 3.19 A rating. Substitution is valid only for applications where the circuit current does not exceed 1.6 A.

Q: What is the significance of the saturation current (Isat) specification?

A: The saturation current indicates the point at which the inductor's inductance begins to degrade due to core saturation. Both parts specify 2.6 A saturation current. This value is independent of the continuous current rating and represents a separate design parameter.

Q: Are there physical size differences between these parts?

A: The LD2-180-R measures 0.307" L x 0.276" W x 0.197" H (7.80mm x 7.00mm x 5.00mm). The SDR0805-180ML measures 0.307" L x 0.307" W x 0.209" H (7.80mm x 7.80mm x 5.30mm). The width and height dimensions differ slightly, which may affect PCB layout considerations in space-constrained designs.

Q: Do both parts meet current RoHS requirements?

A: The LD2-180-R carries RoHS Compliant status. The SDR0805-180ML carries ROHS3 Compliant status, which represents the current RoHS directive revision. Both parts satisfy RoHS compliance requirements for modern applications.

Q: What is the difference in inductance test frequency between these parts?

A: The LD2-180-R inductance is tested at 100 kHz, while the SDR0805-180ML is tested at 1 kHz. This difference reflects different measurement methodologies but does not affect the nominal 18 µH inductance value or ±20% tolerance specification.