TLM2ADR033FTD Equivalent & Substitute Parts

Part Overview

The TLM2ADR033FTD is a 33 milliohm, ±1% tolerance, 0.25W metal foil chip resistor manufactured by TE Connectivity in the 0805 (2012 Metric) package. This component is designed for current sensing applications and operates across the temperature range of -55°C to 155°C. The part maintains Active product status and is RoHS3 compliant with unlimited moisture sensitivity rating (MSL 1). Substitute parts are identified when equivalent electrical and mechanical specifications are required, or when upgraded performance characteristics such as increased power rating or automotive qualification are necessary for specific application requirements.

Substiute Parts

TLM2ADR033FTD

TE Connectivity Passive ProductIn Stock: 900TLM2ADR033FTD Datasheet

Current PartRFQ

KRL1220E-M-R033-F-T5

SusumuIn Stock: 5501KRL1220E-M-R033-F-T5 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the TLM2ADR033FTD is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Requirements:

• Resistance value: 33 mOhms
• Tolerance: ±1%
• Temperature coefficient: ±50 ppm/°C
• Operating temperature range: -55°C to 155°C
• Composition: Metal Foil

Mechanical Equivalence Requirements:

• Package type: 0805 (2012 Metric)
• Physical dimensions: 0.079" L × 0.049" W (2.00mm × 1.25mm)
• Number of terminations: 2

Compliance Requirements:

• RoHS3 compliance
• MSL 1 rating
• REACH Unaffected status

The substitute part KRL1220E-M-R033-F-T5 meets all electrical and mechanical equivalence criteria. The primary difference is an increased power rating (0.5W versus 0.25W) and automotive AEC-Q200 qualification, which represent enhanced capabilities rather than deviations from the base specification.

Parameter Comparison

Engineering Selection Recommendations

Primary Part Selection (TLM2ADR033FTD): Select the TLM2ADR033FTD when the application requires a 0.25W current sense resistor with standard industrial compliance. This part is Active status with full RoHS3 compliance and unlimited moisture sensitivity rating. TE Connectivity manufacturing ensures established supply chain reliability.

Substitute Part Selection (KRL1220E-M-R033-F-T5): Select the KRL1220E-M-R033-F-T5 when any of the following conditions apply:

• Application requires increased power dissipation capacity (0.5W rating)
• Automotive qualification to AEC-Q200 standard is mandated
• Susumu component sourcing is preferred or required
• Higher thermal margin is necessary for reliability enhancement

Both parts maintain identical electrical performance in resistance, tolerance, and temperature coefficient. The substitute part's increased power rating and automotive qualification represent performance enhancements compatible with the primary part's footprint and electrical characteristics. The maximum seated height difference (0.024" versus 0.028") is within typical PCB assembly tolerances for 0805 components.

Frequently Asked Questions (FAQ)

Q: Can KRL1220E-M-R033-F-T5 be used as a direct replacement for TLM2ADR033FTD?

A: Yes. Both parts share identical resistance (33 mOhms), tolerance (±1%), temperature coefficient (±50 ppm/°C), operating temperature range (-55°C to 155°C), package (0805), and composition (metal foil). The substitute part's 0.5W power rating exceeds the primary part's 0.25W specification, making it functionally compatible in all applications where the primary part is specified.

Q: What is the significance of the AEC-Q200 qualification on the substitute part?

A: AEC-Q200 is an automotive industry standard qualification for passive components. The KRL1220E-M-R033-F-T5 carries this certification, indicating compliance with automotive reliability and quality requirements. Applications not requiring automotive qualification can use either part without functional impact.

Q: Are there physical compatibility concerns between these parts?

A: Both parts use the 0805 (2012 Metric) package with identical length (0.079") and width (0.049"). The seated height difference (0.024" maximum for TLM2ADR033FTD versus 0.028" maximum for KRL1220E-M-R033-F-T5) is within standard PCB assembly tolerances and does not create compatibility issues.

Q: Do both parts meet the same compliance standards?

A: Yes. Both the TLM2ADR033FTD and KRL1220E-M-R033-F-T5 are RoHS3 compliant, REACH Unaffected, and carry MSL 1 (Unlimited) moisture sensitivity ratings. Compliance profiles are equivalent for non-automotive applications.

Q: What determines whether I should use the 0.25W or 0.5W version?

A: Power rating selection depends on the maximum continuous power dissipation in your circuit. Calculate power dissipation using P = I²R, where I is the maximum current through the resistor and R is 0.033 ohms. If calculated power exceeds 0.25W, the 0.5W substitute part is required. If power remains below 0.25W, either part is suitable.

Q: Are there inventory or lead time considerations?

A: The TLM2ADR033FTD has 828 pieces in stock, while the KRL1220E-M-R033-F-T5 has 5400 pieces available. Substitute part selection may provide improved availability for high-volume requirements.