TL3AR005FTDG Equivalent & Substitute Parts

Part Overview

The TL3AR005FTDG is a 5 milliohm, ±1% tolerance, 1-watt metal foil chip resistor in a 2512 (6432 metric) package manufactured by TE Connectivity Passive Product. This component is classified as a current sense resistor and operates across a temperature range of -65°C to 170°C. The part is currently obsolete, necessitating identification of equivalent and substitute components for ongoing design support and procurement requirements.

Substiute Parts

TL3AR005FTDG

TE Connectivity Passive ProductIn Stock: 2603TL3AR005FTDG Datasheet

Current PartRFQ

TL3AR005F

TE Connectivity Passive ProductIn Stock: 6392TL3AR005F Datasheet

DirectRFQ

TLRP3A20WR005FTE

TE Connectivity Passive ProductIn Stock: 1216TLRP3A20WR005FTE Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the TL3AR005FTDG is determined by the following critical parameters: resistance value (5 mOhms), tolerance (±1%), package type (2512), composition (metal foil), and current sense application classification. Parts meeting these core electrical and mechanical specifications are considered direct equivalents.

The substitute parts identified fall into two categories:

Direct Equivalent (Identical Specifications): TL3AR005F maintains all electrical characteristics and physical dimensions of the main part, differing only in packaging format (Cut Tape versus Cut Tape).

Manufacturer-Recommended Upgrade (Enhanced Specifications): TLRP3A20WR005FTE provides increased power rating (2W versus 1W) and active product status, while maintaining the same resistance, tolerance, package footprint, and metal foil composition. This part represents a higher-performance alternative suitable for applications requiring additional thermal headroom.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement: TL3AR005F is the appropriate selection when exact electrical and mechanical specifications must be maintained. Both the main part and this substitute are obsolete; however, TL3AR005F currently maintains higher inventory availability (6331 pieces in stock versus 2553 pieces for TL3AR005FTDG).

For New Designs or Long-Term Availability: TLRP3A20WR005FTE is the manufacturer-recommended alternative. This part carries active product status, ensuring continued availability and supply chain stability. The increased power rating (2W) provides design margin for thermal performance without altering the footprint or electrical characteristics critical to current sensing applications. The height increase from 0.024" to 0.035" must be verified against PCB layout constraints. The temperature coefficient specification changes from ±75ppm/°C to ±100ppm/°C and the minimum operating temperature shifts from -65°C to -55°C; these differences require evaluation against application requirements.

All substitute parts maintain ROHS3 compliance, unlimited moisture sensitivity rating, and identical package footprint dimensions in the X and Y axes, ensuring PCB compatibility.

Frequently Asked Questions (FAQ)

Q: Can TL3AR005F be used as a direct replacement for TL3AR005FTDG?

A: Yes. TL3AR005F is electrically and mechanically identical to TL3AR005FTDG. Both components feature 5 mOhms resistance, ±1% tolerance, 1W power rating, metal foil composition, and 2512 package configuration. The only difference is packaging format (both are Cut Tape). Substitution is valid for all applications where the original part was specified.

Q: What are the advantages of using TLRP3A20WR005FTE instead of TL3AR005FTDG?

A: TLRP3A20WR005FTE offers three primary advantages: (1) Active product status, ensuring long-term availability and supply chain continuity; (2) Doubled power rating (2W versus 1W), providing increased thermal capacity for high-current applications; (3) Identical footprint and electrical specifications (5 mOhms, ±1%, metal foil, 2512 package). The part is suitable for designs requiring enhanced performance margins.

Q: Are there any physical compatibility concerns when substituting TLRP3A20WR005FTE?

A: The seated height differs between parts. TL3AR005FTDG and TL3AR005F have a maximum seated height of 0.024" (0.60mm), while TLRP3A20WR005FTE has a maximum seated height of 0.035" (0.90mm). This 0.011" (0.30mm) increase must be verified against PCB clearance requirements, solder mask specifications, and component placement constraints. The X and Y footprint dimensions remain identical (0.252" L x 0.126" W).

Q: Do the temperature specifications differ between substitute parts?

A: Yes. TL3AR005FTDG and TL3AR005F operate from -65°C to 170°C with a temperature coefficient of ±75ppm/°C. TLRP3A20WR005FTE operates from -55°C to 170°C with a temperature coefficient of ±100ppm/°C. Applications requiring operation below -55°C must use TL3AR005F or TL3AR005FTDG. Applications with relaxed low-temperature requirements can use TLRP3A20WR005FTE.

Q: Are all substitute parts RoHS compliant?

A: Yes. TL3AR005FTDG, TL3AR005F, and TLRP3A20WR005FTE are all ROHS3 compliant with unlimited moisture sensitivity rating (MSL 1). All parts are suitable for applications requiring environmental compliance certification.

Q: Which substitute part should be selected for new product designs?

A: TLRP3A20WR005FTE is the recommended selection for new designs. Active product status ensures availability throughout the design lifecycle and into production. The enhanced 2W power rating provides design margin for thermal performance. Verify that the increased seated height (0.035" maximum) accommodates PCB layout requirements before finalizing the design.