TL2BR068F Equivalent & Substitute Parts

Part Overview

The TL2BR068F is a 68 milliohm, 1% tolerance, 1/4W metal foil chip resistor manufactured by TE Connectivity Passive Product in the 1206 (3216 Metric) package. This component is designed for current sensing applications and features a temperature coefficient of ±75ppm/°C with an operating temperature range of -65°C to 170°C. The part is classified as obsolete, necessitating identification of equivalent and substitute components for ongoing design requirements and procurement needs.

Substiute Parts

TL2BR068F

TE Connectivity Passive ProductIn Stock: 53639TL2BR068F Datasheet

Current PartRFQ

TLM2BDR068FTD

TE Connectivity Passive ProductIn Stock: 4634TLM2BDR068FTD Datasheet

MFR RecommendedRFQ

KRL1632E-M-R068-F-T5

SusumuIn Stock: 83369KRL1632E-M-R068-F-T5 Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TL2BR068F is determined by strict adherence to the following electrical and mechanical parameters:

Critical Parameters for Substitution:

• Resistance value: 68 mOhms
• Tolerance: ±1%
• Package type: 1206 (3216 Metric)
• Composition: Metal Foil
• Application: Current Sense
• Number of Terminations: 2

Parameters Allowing Variation:

• Power rating may be equal to or greater than the original 0.25W specification
• Temperature coefficient may differ if operating temperature range requirements are met
• Operating temperature range may differ based on application requirements
• Product status may transition from obsolete to active

The substitute parts TLM2BDR068FTD and KRL1632E-M-R068-F-T5 maintain identical resistance, tolerance, package, composition, and application characteristics while offering enhanced power ratings and alternative thermal specifications.

Parameter Comparison

Engineering Selection Recommendations

TLM2BDR068FTD (Manufacturer Recommended Substitute): This part is the direct manufacturer-recommended substitute from TE Connectivity Passive Product. It maintains identical electrical specifications while offering double the power rating (0.5W versus 0.25W). The component is active in production status, ensuring long-term availability. The temperature coefficient improves to ±50ppm/°C, and RoHS3 compliance is maintained. This substitute is appropriate for applications where the original 0.25W rating is adequate or where the enhanced 0.5W capability provides design margin.

KRL1632E-M-R068-F-T5 (Upgrade Option): This Susumu component provides the highest power rating at 0.75W while maintaining all critical electrical parameters. It includes AEC-Q200 automotive qualification, making it suitable for automotive and high-reliability applications. The component is active in production with REACH Unaffected status. The operating temperature range is -55°C to 155°C, which is narrower than the original part but adequate for most industrial and commercial applications. This upgrade option is selected when maximum thermal headroom or automotive compliance is required.

Both substitute parts are ROHS3 compliant with MSL 1 rating, ensuring compatibility with standard manufacturing processes and long-term storage capability.

Frequently Asked Questions (FAQ)

Q: Can TLM2BDR068FTD be used as a direct replacement for TL2BR068F?

A: Yes. Both parts share identical resistance (68 mOhms), tolerance (±1%), package (1206), composition (metal foil), and current sense application. The TLM2BDR068FTD provides enhanced power rating (0.5W versus 0.25W) and improved temperature coefficient (±50ppm/°C versus ±75ppm/°C), making it functionally compatible and superior in thermal performance.

Q: What is the difference between the two substitute parts?

A: TLM2BDR068FTD is manufactured by TE Connectivity and offers 0.5W power rating. KRL1632E-M-R068-F-T5 is manufactured by Susumi and offers 0.75W power rating with AEC-Q200 automotive qualification. Both maintain identical resistance and tolerance specifications. Selection depends on power dissipation requirements and automotive compliance needs.

Q: Are there packaging differences between these parts?

A: Yes. The original TL2BR068F is supplied in Cut Tape (CT) packaging. Both substitute parts are supplied in Tape & Reel (TR) packaging, which is standard for high-volume production. The physical package dimensions (1206) remain identical across all three parts.

Q: What is the operating temperature range difference?

A: The original TL2BR068F operates from -65°C to 170°C. Both substitute parts operate from -55°C to 155°C. The substitute parts have a narrower range but cover standard industrial and commercial temperature requirements. Applications requiring the full -65°C to 170°C range must evaluate specific thermal requirements.

Q: Are all three parts RoHS compliant?

A: Yes. All three parts are ROHS3 compliant with Moisture Sensitivity Level 1 (unlimited), ensuring compatibility with standard manufacturing processes and long-term storage without special handling.

Q: Which part should be selected for new designs?

A: For new designs, either TLM2BDR068FTD or KRL1632E-M-R068-F-T5 is appropriate. TLM2BDR068FTD is recommended for standard applications requiring 0.5W capability. KRL1632E-M-R068-F-T5 is recommended for automotive applications or designs requiring maximum thermal margin with 0.75W capability.