L0806C680KPWST Equivalent & Substitute Parts

Part Overview

The L0806C680KPWST is a 68 µH unshielded drum core wirewound inductor manufactured by KEMET in the 0806 (2016 Metric) surface mount package. This component is rated for 55 mA continuous current with a DC resistance of 3 Ohm and operates across the temperature range of -40°C to 105°C. The part is classified as Obsolete, necessitating identification of functionally equivalent alternatives for ongoing production and maintenance applications. Substitute components must maintain the same inductance value, package form factor, and core material while accommodating variations in current rating and DC resistance within acceptable design parameters.

Substiute Parts

L0806C680KPWST

KEMETIn Stock: 851L0806C680KPWST Datasheet

Current PartRFQ

CBC2016T680K

Taiyo YudenIn Stock: 934CBC2016T680K Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute components for the L0806C680KPWST are identified based on strict equivalence of the following critical parameters:

Mandatory Matching Parameters:

• Inductance value: 68 µH
• Inductance tolerance: ±10%
• Package / Case: 0806 (2016 Metric)
• Core material: Ferrite
• Core type: Drum Core, Wirewound
• Shielding: Unshielded
• Mounting type: Surface Mount
• Operating temperature range: -40°C to 105°C
• Self-resonant frequency: 10 MHz
• Inductance test frequency: 2.52 MHz

Allowable Variation Parameters:

• Current rating: May exceed the original 55 mA specification
• DC resistance (DCR): May vary from the original 3 Ohm specification

The CBC2016T680K from Taiyo Yuden satisfies all mandatory matching parameters and provides enhanced current handling capability (130 mA) and saturation current specification (130 mA), making it suitable for applications requiring higher current capacity within the same physical and electrical envelope.

Parameter Comparison

Engineering Selection Recommendations

The CBC2016T680K from Taiyo Yuden is electrically and mechanically compatible with the L0806C680KPWST for direct substitution in existing designs. Both components meet ROHS3 compliance and carry MSL 1 (Unlimited) moisture sensitivity ratings, ensuring equivalent environmental and regulatory performance.

The primary distinction between these components is the current rating specification. The CBC2016T680K provides a current rating of 130 mA with a saturation current of 130 mA, compared to the L0806C680KPWST's 55 mA rating. This enhanced current capacity does not compromise compatibility; applications operating at or below 55 mA will function identically with either component.

The DC resistance difference (3 Ohm versus 9.1 Ohm maximum) must be evaluated within the context of circuit design. Applications sensitive to inductor losses or requiring minimal DC resistance should account for this parameter variation during circuit analysis.

Both components share identical inductance values, tolerances, package dimensions, core materials, and operating temperature ranges, confirming their functional equivalence for the specified 0806 (2016 Metric) surface mount inductor category.

Frequently Asked Questions (FAQ)

Q: Can the CBC2016T680K replace the L0806C680KPWST in existing circuit designs?

A: Yes. Both inductors share identical inductance (68 µH), tolerance (±10%), package form factor (0806/2016 Metric), core material (ferrite), and operating temperature range (-40°C to 105°C). The CBC2016T680K's higher current rating (130 mA) and saturation current (130 mA) do not prevent substitution in applications designed for the original 55 mA specification.

Q: What is the impact of the different DC resistance values?

A: The L0806C680KPWST specifies 3 Ohm DC resistance, while the CBC2016T680K specifies 9.1 Ohm maximum. This difference affects power dissipation and circuit losses. Applications with strict loss budgets or operating at maximum current ratings should calculate the impact of increased resistance on thermal performance and efficiency.

Q: Are both components RoHS compliant?

A: Yes. Both the L0806C680KPWST and CBC2016T680K are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity ratings, meeting equivalent environmental and regulatory requirements.

Q: What does "Not For New Designs" mean for the CBC2016T680K?

A: This product status indicates that Taiyo Yuden does not recommend the CBC2016T680K for new design implementations. However, it remains suitable for replacement and maintenance of existing applications. The L0806C680KPWST's "Obsolete" status necessitates the use of available alternatives such as the CBC2016T680K for ongoing production support.

Q: Are the physical dimensions identical?

A: Yes. Both components share identical dimensions: 0.079" L x 0.063" W (2.00mm x 1.60mm) with a maximum seated height of 0.071" (1.80mm). They are mechanically interchangeable in 0806 (2016 Metric) surface mount applications.

Q: What is the self-resonant frequency specification?

A: Both inductors specify a self-resonant frequency of 10 MHz with inductance measured at 2.52 MHz. These parameters are identical across both components, confirming equivalent high-frequency performance characteristics.