L0806BR39JSWST Equivalent & Substitute Parts

Part Overview

The L0806BR39JSWST is a 390 nH unshielded drum core wirewound inductor manufactured by KEMET in the 0806 (2016 Metric) surface mount package. This component is rated for 440 mA continuous current with a DC resistance of 260 mOhm 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.

Key Parameters

Parameter	Value
Inductance	390 nH
Inductance Tolerance	±5%
Current Rating	440 mA
DC Resistance (DCR)	260 mOhm
Core Type	Ferrite Drum Core, Unshielded
Package / Case	0806 (2016 Metric)
Mounting Type	Surface Mount
Operating Temperature Range	-40°C to 105°C
Frequency - Self Resonant	375 MHz
Inductance Frequency - Test	25.2 MHz
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution of the L0806BR39JSWST is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

Inductance value: 390 nH at ±5% tolerance
Current rating: 440 mA minimum
DC resistance: 260 mOhm
Self-resonant frequency: 375 MHz
Test frequency: 25.2 MHz

Mechanical & Package Parameters:

Package designation: 0806 (2016 Metric)
Mounting type: Surface Mount
Core material: Ferrite
Core configuration: Unshielded Drum Core, Wirewound

Environmental & Compliance Parameters:

Operating temperature: -40°C to 105°C
RoHS3 compliance
Moisture Sensitivity Level: 1

The substitute part LBM2016TR39J from Taiyo Yuden meets all electrical, mechanical, and environmental specifications. The primary difference is packaging format (Tape & Reel versus Cut Tape) and product lifecycle status.

Parameter Comparison

Parameter	L0806BR39JSWST (KEMET)	LBM2016TR39J (Taiyo Yuden)	Match Status
Inductance	390 nH	390 nH	Equivalent
Inductance Tolerance	±5%	±5%	Equivalent
Current Rating (Amps)	440 mA	440 mA	Equivalent
DC Resistance (DCR)	260 mOhm	260 mOhm	Equivalent
Core Type	Ferrite Drum Core, Unshielded	Ferrite Drum Core, Unshielded	Equivalent
Package / Case	0806 (2016 Metric)	0806 (2016 Metric)	Equivalent
Mounting Type	Surface Mount	Surface Mount	Equivalent
Operating Temperature	-40°C to 105°C	-40°C to 105°C	Equivalent
Frequency - Self Resonant	375 MHz	375 MHz	Equivalent
Inductance Frequency - Test	25.2 MHz	25.2 MHz	Equivalent
Q @ Freq	Not specified	30 @ 25.2 MHz	Additional data available for substitute
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	Equivalent
Moisture Sensitivity Level	1 (Unlimited)	1 (Unlimited)	Equivalent
Packaging Format	Cut Tape (CT)	Tape & Reel (TR)	Different format
Product Status	Obsolete	Not For New Designs	Both lifecycle-restricted

Engineering Selection Recommendations

The LBM2016TR39J from Taiyo Yuden is a direct electrical and mechanical equivalent to the L0806BR39JSWST. Both components satisfy identical specifications for inductance, current rating, DC resistance, operating temperature range, and package dimensions.

Compliance Considerations: Both parts maintain ROHS3 compliance and MSL Level 1 rating, ensuring compatibility with standard manufacturing and storage protocols.

Packaging Consideration: The primary distinction is the packaging format. The L0806BR39JSWST is supplied in Cut Tape format, while the LBM2016TR39J is supplied in Tape & Reel format. This difference affects handling and automated assembly processes but does not impact electrical or mechanical performance.

Product Lifecycle Status: Both components carry restricted lifecycle designations (Obsolete and Not For New Designs respectively). For new designs, consultation with component suppliers regarding long-term availability and alternative solutions is advised based on application requirements.

Frequently Asked Questions (FAQ)

Q: Can the LBM2016TR39J directly replace the L0806BR39JSWST in existing designs?

A: Yes. The LBM2016TR39J meets all electrical specifications (390 nH inductance, 440 mA current rating, 260 mOhm DCR) and mechanical requirements (0806 package, surface mount configuration). The components are pin-compatible and functionally equivalent.

Q: What is the difference between Cut Tape and Tape & Reel packaging?

A: Cut Tape (CT) packaging supplies components in individual tape segments suitable for manual handling or small-volume assembly. Tape & Reel (TR) packaging supplies components on continuous reels optimized for high-volume automated assembly. Both formats contain identical components; the difference is in delivery and handling method.

Q: Are there any performance differences between these two parts?

A: No performance differences exist in the specified electrical parameters. The LBM2016TR39J provides additional Q factor data (30 @ 25.2 MHz), which was not specified for the L0806BR39JSWST. This additional information does not indicate superior performance but rather more complete documentation.

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

A: This designation indicates the manufacturer does not recommend the component for new product development. However, it remains available for replacement and maintenance of existing applications. For new designs, alternative active components should be evaluated.

Q: Are both parts RoHS compliant?

A: Yes. Both the L0806BR39JSWST and LBM2016TR39J are ROHS3 compliant and carry MSL Level 1 rating, indicating unlimited shelf life under standard storage conditions.

Q: Can these inductors be used interchangeably in automated assembly?

A: Electrical and mechanical interchangeability is confirmed. However, assembly line integration depends on equipment compatibility with the specific packaging format (Cut Tape versus Tape & Reel). Verify feeder and handling system compatibility before implementation.

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