LD2-151-R Equivalent & Substitute Parts

Part Overview

The LD2-151-R is a 150 µH unshielded drum core wirewound inductor manufactured by Eaton - Electronics Division. This surface mount component is rated for 1.23 A continuous current with a maximum DC resistance of 640 mOhm and operates across the temperature range of -40°C to 125°C. The part is ROHS3 compliant and carries an MSL rating of 1 (Unlimited). As an active product with 1220 pieces in stock, the LD2-151-R serves applications requiring fixed inductance in compact form factors. Equivalent and substitute parts are identified to support design flexibility, supply chain continuity, and application-specific performance requirements.

Substiute Parts

LD2-151-R

Eaton - Electronics DivisionIn Stock: 1327LD2-151-R Datasheet

Current PartRFQ

SDR0805-151KL

Bourns Inc.In Stock: 7904SDR0805-151KL Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LD2-151-R is determined by the following critical parameters:

Primary Matching Criteria:

• Inductance value: 150 µH (exact match required)
• Core material: Ferrite drum core, unshielded
• Mounting type: Surface mount
• Operating temperature range: -40°C to 125°C minimum
• RoHS compliance: ROHS3 Compliant

Secondary Compatibility Factors:

• Current rating: Substitute must support the application's maximum current requirement
• DC resistance: Substitute DCR must be acceptable for the circuit design
• Saturation current: Substitute Isat must exceed application peak current demands
• Package dimensions: Physical footprint must fit the PCB layout

The SDR0805-151KL from Bourns Inc. qualifies as a substitute based on matching inductance value, core type, mounting configuration, temperature range, and RoHS compliance. Differences in current rating, DCR, and physical dimensions require engineering evaluation for specific applications.

Parameter Comparison

Engineering Selection Recommendations

LD2-151-R Selection Criteria: The LD2-151-R is the primary choice for applications requiring 1.23 A continuous current capacity. This part offers higher current handling capability and lower saturation current margin. The part is active, ROHS3 compliant, and available in high volume (1220 pieces in stock). The ±20% inductance tolerance is suitable for general-purpose filtering and energy storage applications.

SDR0805-151KL Selection Criteria: The SDR0805-151KL from Bourns serves as a substitute for applications with lower current requirements (580 mA maximum). This part provides tighter inductance tolerance (±10%) and is available in larger quantities (7800 pieces in stock). The SDR0805-151KL is ROHS3 compliant and REACH unaffected. Physical dimensions differ slightly (7.80mm x 7.80mm versus 7.80mm x 7.00mm), requiring PCB layout verification. Both parts maintain identical operating temperature range and MSL ratings.

Compliance Status: Both parts are ROHS3 compliant, carry EAR99 ECCN classification, and fall under HTSUS code 8504.50.4000. Both maintain MSL 1 (Unlimited) moisture sensitivity ratings, eliminating special handling requirements.

Frequently Asked Questions (FAQ)

Q: Can the SDR0805-151KL replace the LD2-151-R in all applications?

A: The SDR0805-151KL is suitable only for applications where the maximum continuous current requirement does not exceed 580 mA. The LD2-151-R supports 1.23 A continuous current. If your circuit requires the full 1.23 A rating, the SDR0805-151KL is not a direct substitute. Verify your application's actual current draw before substitution.

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

A: The LD2-151-R carries ±20% inductance tolerance, while the SDR0805-151KL offers ±10% tolerance. Applications requiring tighter inductance accuracy benefit from the SDR0805-151KL. General-purpose filtering applications typically accept the ±20% tolerance of the LD2-151-R.

Q: Are there physical dimension differences that affect PCB layout?

A: Yes. The LD2-151-R measures 7.80mm x 7.00mm with 5.00mm maximum seated height. The SDR0805-151KL measures 7.80mm x 7.80mm with 5.30mm maximum seated height. The SDR0805-151KL is slightly wider and taller. Verify PCB footprint spacing and component clearance before substitution.

Q: Do both parts require special moisture handling?

A: No. Both parts carry MSL 1 (Unlimited) ratings, indicating no moisture sensitivity limitations. Standard PCB assembly and storage procedures apply without special precautions.

Q: What is the DC resistance difference, and does it matter?

A: The LD2-151-R specifies 640 mOhm maximum DCR, while the SDR0805-151KL specifies 680 mOhm maximum DCR. The 40 mOhm difference is minimal for most applications. In high-current or precision circuits, calculate power dissipation (I²R) to confirm acceptability.

Q: Are both parts available in the same packaging formats?

A: No. The LD2-151-R is supplied in Tape & Reel (TR) format. The SDR0805-151KL is supplied in Cut Tape (CT) and Digi-Reel® formats. Verify your assembly process compatibility with the available packaging options.

Q: What is the saturation current difference?

A: The LD2-151-R saturates at 950 mA, while the SDR0805-151KL saturates at 850 mA. For applications with transient current spikes, the LD2-151-R provides greater margin before saturation occurs. Confirm your circuit's peak current requirements do not exceed the substitute part's saturation rating.