LK1608R27K-T Equivalent & Substitute Parts

Part Overview

The LK1608R27K-T is a 270 nH shielded multilayer inductor manufactured by Taiyo Yuden, designed for surface mount applications in the 0603 (1608 Metric) package. This component is rated for 100 mA maximum current with 800 mOhm maximum DC resistance and operates across the temperature range of -40°C to 85°C. The product is currently obsolete, necessitating identification of functionally equivalent alternatives that maintain electrical and mechanical compatibility for existing designs.

Substiute Parts

LK1608R27K-T

Taiyo YudenIn Stock: 841LK1608R27K-T Datasheet

Current PartRFQ

CS160808-R27K

Bourns Inc.In Stock: 6674CS160808-R27K Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LK1608R27K-T is determined by strict adherence to the following electrical and mechanical parameters:

Critical Matching Parameters:

• Inductance value: 270 nH with ±10% tolerance
• Package / Case: 0603 (1608 Metric) surface mount
• Shielding: Shielded configuration
• Physical dimensions: 0.063" L x 0.031" W (1.60mm x 0.80mm) with maximum seated height of 0.037" (0.95mm)

Allowable Substitution Criteria:

• Current rating must equal or exceed 100 mA
• DC resistance must not exceed 800 mOhm maximum
• Operating temperature range must encompass or exceed -40°C to 85°C
• RoHS3 compliance and MSL 1 rating required
• Inductance frequency test at 25 MHz

The Bourns CS160808-R27K meets all substitution criteria with enhanced electrical performance characteristics while maintaining identical mechanical compatibility and regulatory compliance.

Parameter Comparison

Engineering Selection Recommendations

The Bourns CS160808-R27K is a direct functional equivalent for the obsolete Taiyo Yuden LK1608R27K-T. Both components maintain ROHS3 compliance and MSL 1 rating, ensuring regulatory and environmental compatibility with existing design requirements.

The CS160808-R27K provides enhanced electrical performance across all critical parameters: current rating is doubled (200 mA versus 100 mA), DC resistance is reduced by 37.5% (500 mOhm versus 800 mOhm maximum), and quality factor is doubled (Q = 30 versus Q = 15 at 25 MHz). The operating temperature range is expanded from -40°C to 85°C to -55°C to 125°C, providing greater thermal margin.

Mechanical compatibility is complete: identical 0603 (1608 Metric) package dimensions, surface mount configuration, and seated height ensure direct board-level substitution without layout or assembly modifications. The substitute part is currently in active production with substantial inventory availability (6566 pieces), eliminating supply chain risk associated with the obsolete original component.

Frequently Asked Questions (FAQ)

Q: Can the CS160808-R27K be used as a direct replacement for the LK1608R27K-T on existing PCBs?

A: Yes. Both components share identical mechanical specifications: 0603 (1608 Metric) package, 0.063" L x 0.031" W (1.60mm x 0.80mm) footprint, and 0.037" (0.95mm) maximum seated height. No PCB layout or assembly process modifications are required.

Q: Are there electrical performance differences between these inductors?

A: The CS160808-R27K exceeds the LK1608R27K-T specifications in three areas: current rating (200 mA versus 100 mA), DC resistance (500 mOhm maximum versus 800 mOhm maximum), and quality factor at 25 MHz (Q = 30 versus Q = 15). Inductance value, tolerance, and self-resonant frequency remain identical at 270 nH, ±10%, and 136 MHz respectively.

Q: Do both parts meet the same regulatory and compliance standards?

A: Yes. Both the LK1608R27K-T and CS160808-R27K are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating. Both carry EAR99 ECCN classification and 8504.50.8000 HTSUS code.

Q: What is the operating temperature difference between these parts?

A: The LK1608R27K-T operates from -40°C to 85°C, while the CS160808-R27K operates from -55°C to 125°C. The substitute part provides an expanded temperature range suitable for applications requiring greater thermal margin.

Q: Is the CS160808-R27K available in the same packaging format?

A: The CS160808-R27K is supplied in Tape & Reel (TR) format, while the original LK1608R27K-T packaging format is not specified in available data. Both are 0603 (1608 Metric) surface mount components compatible with standard pick-and-place assembly equipment.

Q: Why is the original LK1608R27K-T listed as obsolete?

A: The LK1608R27K-T is classified as obsolete by Taiyo Yuden. The CS160808-R27K from Bourns Inc. is an active product with current manufacturing and distribution, providing long-term supply security for new designs and production continuity for existing applications.