TL3AR033F Equivalent & Substitute Parts

Part Overview

The TL3AR033F is a 33 milliohm, ±1% tolerance, 1W chip resistor manufactured by TE Connectivity Passive Product in the 2512 (6432 Metric) package. This metal foil current sense resistor is designed for precision current measurement applications with a temperature coefficient of ±75ppm/°C and operating 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

TL3AR033F

TE Connectivity Passive ProductIn Stock: 6084TL3AR033F Datasheet

Current PartRFQ

TL3AR033FTDG

TE Connectivity Passive ProductIn Stock: 2544TL3AR033FTDG Datasheet

DirectRFQ

TLRP3A20WR033FTE

TE Connectivity Passive ProductIn Stock: 21981TLRP3A20WR033FTE Datasheet

MFR RecommendedRFQ

KRL3264-C-R033-F-T1

SusumuIn Stock: 2373KRL3264-C-R033-F-T1 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the TL3AR033F is determined by strict equivalence across the following critical parameters: resistance value (33 mOhms), tolerance (±1%), package type (2512/6432 Metric), and current sense functionality. All substitute parts must maintain the same resistance specification and tolerance to ensure circuit performance in current measurement applications.

The substitute parts are grouped into two categories based on product status and electrical characteristics:

Direct Equivalents (Identical Electrical Specifications): Parts that match all primary electrical parameters including 1W power rating, metal foil composition, and ±75ppm/°C temperature coefficient.

Functional Substitutes (Enhanced Specifications): Parts that exceed the original specifications in power rating, temperature coefficient, or operating temperature range while maintaining the core 33 mOhm, ±1% tolerance requirement and 2512 package form factor.

Parameter Comparison

Engineering Selection Recommendations

TL3AR033FTDG is the direct equivalent substitute for the TL3AR033F. Both parts are manufactured by TE Connectivity with identical electrical specifications: 33 mOhms, ±1% tolerance, 1W power rating, metal foil composition, and ±75ppm/°C temperature coefficient. Both are classified as obsolete products. This part provides a one-to-one replacement with no design modifications required.

TLRP3A20WR033FTE is a functional substitute manufactured by TE Connectivity with enhanced specifications. It provides 2W power rating (versus 1W), maintains ±75ppm/°C temperature coefficient, and includes AEC-Q200 automotive qualification and anti-sulfur protection. The operating temperature range is -55°C to 170°C (versus -65°C to 170°C). This part is active in production status. Selection of this substitute is appropriate for applications requiring automotive-grade reliability or higher power dissipation capability.

KRL3264-C-R033-F-T1 is a functional substitute manufactured by Susumu with enhanced specifications. It provides superior temperature coefficient performance at ±50ppm/°C (versus ±75ppm/°C), extended operating temperature range to 175°C, and AEC-Q200 automotive qualification. The 1W power rating matches the original specification. This part is active in production status. Selection of this substitute is appropriate for applications requiring tighter temperature stability or extended high-temperature operation.

All substitute parts maintain ROHS3 compliance and Moisture Sensitivity Level 1 (Unlimited) rating, ensuring compatibility with standard manufacturing and storage requirements.

Frequently Asked Questions (FAQ)

Q: Can TL3AR033FTDG be used as a direct replacement for TL3AR033F?

A: Yes. TL3AR033FTDG is a direct equivalent with identical electrical specifications, package type, and performance characteristics. No circuit modifications are required.

Q: What is the primary difference between TL3AR033F and TLRP3A20WR033FTE?

A: TLRP3A20WR033FTE provides double the power rating (2W versus 1W), includes AEC-Q200 automotive qualification, and features anti-sulfur protection. The temperature coefficient and resistance value remain identical. The operating temperature minimum is -55°C instead of -65°C.

Q: Is KRL3264-C-R033-F-T1 suitable for high-temperature applications?

A: Yes. KRL3264-C-R033-F-T1 operates to 175°C maximum (versus 170°C for the original part) and provides a superior temperature coefficient of ±50ppm/°C, making it suitable for applications requiring tighter temperature stability across extended operating ranges.

Q: Are all substitute parts available in the same packaging format?

A: No. TL3AR033F and TL3AR033FTDG are supplied in Cut Tape (CT) packaging. TLRP3A20WR033FTE and KRL3264-C-R033-F-T1 are supplied in Tape & Reel (TR) packaging. Packaging format selection depends on assembly process requirements and volume specifications.

Q: Do all substitute parts meet RoHS compliance requirements?

A: Yes. All substitute parts listed are ROHS3 compliant and suitable for applications requiring environmental compliance certification.

Q: What is the significance of AEC-Q200 rating on substitute parts?

A: AEC-Q200 is an automotive industry qualification standard. TLRP3A20WR033FTE and KRL3264-C-R033-F-T1 carry this rating, indicating suitability for automotive applications with enhanced reliability and quality assurance requirements. The original TL3AR033F does not carry this rating.

Q: Can the 2512 package dimension variations between substitutes affect PCB layout?

A: Dimensional variations are minimal. TL3AR033F measures 0.252" L × 0.126" W (6.40mm × 3.20mm) with 0.024" maximum seated height. KRL3264-C-R033-F-T1 measures 0.248" L × 0.122" W (6.30mm × 3.10mm) with 0.028" maximum seated height. These variations are within standard PCB tolerance specifications and do not require layout modifications.