TLM2BDR033FTD Equivalent & Substitute Parts

Part Overview

The TLM2BDR033FTD is a 33 milliohm, ±1% tolerance, 0.5W 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 operates across the temperature range of -55°C to 155°C. The part is Active in product status and RoHS3 compliant with MSL Level 1 (Unlimited moisture sensitivity).

Substitute parts are identified when equivalent electrical specifications and mechanical compatibility are maintained across the same package footprint and functional requirements. Alternative sources provide equivalent performance for applications requiring component availability, supply chain flexibility, or enhanced operational ratings.

Substiute Parts

TLM2BDR033FTD

TE Connectivity Passive ProductIn Stock: 968TLM2BDR033FTD Datasheet

Current PartRFQ

KRL1632E-M-R033-F-T5

SusumuIn Stock: 195833KRL1632E-M-R033-F-T5 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TLM2BDR033FTD is determined by strict adherence to the following electrical and mechanical parameters:

Critical Matching Parameters:

• Resistance value: 33 mOhms (0.033 Ohm)
• Tolerance: ±1%
• Package: 1206 (3216 Metric)
• Composition: Metal Foil
• Temperature Coefficient: ±50ppm/°C
• Operating Temperature Range: -55°C to 155°C
• Number of Terminations: 2
• RoHS3 Compliance

Allowable Variation Parameters:

• Power Rating: Substitute parts may exceed the minimum 0.5W specification, provided all other parameters remain equivalent
• Certifications: Additional certifications (such as AEC-Q200) do not disqualify a substitute but represent enhanced qualification

The KRL1632E-M-R033-F-T5 manufactured by Susumu meets all critical matching parameters and exceeds the power rating specification at 0.75W, making it a valid substitute for applications where the original part is unavailable or where enhanced thermal performance is beneficial.

Parameter Comparison

Engineering Selection Recommendations

TLM2BDR033FTD Selection Criteria:

• Primary choice when TE Connectivity Passive Product sourcing is specified or preferred
• Suitable for standard current sensing applications with 0.5W thermal budget
• Active product status ensures continued availability and support

KRL1632E-M-R033-F-T5 Selection Criteria:

• Direct substitute when TLM2BDR033FTD is unavailable or supply-constrained
• Enhanced power rating (0.75W) provides additional thermal margin in high-current applications
• AEC-Q200 automotive qualification extends applicability to automotive and harsh-environment designs
• Active product status with substantial inventory (195,823 pieces) ensures supply reliability
• REACH Unaffected status provides additional regulatory clarity for certain markets

Both parts maintain identical electrical performance in current sensing circuits due to matching resistance, tolerance, temperature coefficient, and operating temperature specifications. The 1206 package footprint is identical, ensuring direct PCB layout compatibility. Selection between these parts should be based on supply availability, application environment (automotive vs. general industrial), and thermal design margins.

Frequently Asked Questions (FAQ)

Q: Can the KRL1632E-M-R033-F-T5 be used as a direct replacement for the TLM2BDR033FTD on existing PCBs?

A: Yes. Both parts use the identical 1206 (3216 Metric) package with matching physical dimensions and two-terminal configuration. PCB layout and footprint remain unchanged. The substitute part is mechanically and electrically compatible without design modifications.

Q: What is the significance of the higher power rating on the substitute part?

A: The KRL1632E-M-R033-F-T5 is rated at 0.75W compared to the TLM2BDR033FTD at 0.5W. This higher rating provides additional thermal dissipation capacity, allowing the substitute to operate at higher current levels or in higher ambient temperature environments while maintaining the same resistance and tolerance specifications.

Q: Are there differences in current sensing accuracy between these parts?

A: No. Both parts maintain ±1% tolerance, ±50ppm/°C temperature coefficient, and identical operating temperature range (-55°C to 155°C). Current sensing accuracy is equivalent across the specified operating conditions.

Q: What does AEC-Q200 qualification mean for the substitute part?

A: AEC-Q200 is an automotive industry standard qualification that certifies the component for automotive applications. The KRL1632E-M-R033-F-T5 meets this standard, making it suitable for automotive and mission-critical applications. The TLM2BDR033FTD does not carry this certification but remains suitable for general industrial applications.

Q: Are both parts RoHS3 compliant?

A: Yes. Both the TLM2BDR033FTD and KRL1632E-M-R033-F-T5 are ROHS3 compliant, meeting current environmental and regulatory requirements for lead-free and restricted substance compliance.

Q: What is the difference in physical dimensions between these parts?

A: Both parts are 1206 package size. The TLM2BDR033FTD measures 0.120" L x 0.061" W (3.05mm x 1.55mm), while the KRL1632E-M-R033-F-T5 measures 0.126" L x 0.063" W (3.20mm x 1.60mm). Both have identical maximum seated height of 0.028" (0.70mm). These minor dimensional variations remain within standard 1206 package tolerances and do not affect PCB compatibility.

Q: Can these parts be used interchangeably in high-temperature applications?

A: Yes. Both parts operate across the identical temperature range of -55°C to 155°C with matching ±50ppm/°C temperature coefficient, ensuring equivalent performance in high-temperature environments.

Q: What is the MSL rating and why does it matter?

A: Both parts carry MSL Level 1 (Unlimited) rating, indicating unlimited shelf life and no moisture sensitivity restrictions. This simplifies storage, handling, and logistics without requiring special environmental controls or baking procedures.