RL73H2AR30FTDF Equivalent & Substitute Parts

Part Overview

The RL73H2AR30FTDF is a 300 mOhms ±1% thick film chip resistor manufactured by TE Connectivity Passive Product. This current sense resistor is designed for precision low-resistance applications requiring tight tolerance and stable performance across extended temperature ranges. The part is packaged in 0805 (2012 Metric) form factor and rated for 0.125W (1/8W) power dissipation. The RL73H2AR30FTDF maintains Active product status and carries RoHS3 compliance certification. Substitute parts are identified to address inventory availability, compliance requirements, or specific application constraints while maintaining electrical and mechanical compatibility.

Substiute Parts

RL73H2AR30FTDF

TE Connectivity Passive ProductIn Stock: 741RL73H2AR30FTDF Datasheet

Current PartRFQ

RL73H2AR30FTD

TE Connectivity Passive ProductIn Stock: 43650RL73H2AR30FTD Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RL73H2AR30FTDF is determined by strict equivalence across the following electrical and mechanical parameters:

Electrical Parameters: Resistance value (300 mOhms), tolerance (±1%), power rating (0.125W), temperature coefficient (±100ppm/°C), and operating temperature range (-55°C ~ 155°C) must be identical.

Mechanical Parameters: Package type (0805 / 2012 Metric), physical dimensions (0.079" L x 0.049" W / 2.00mm x 1.25mm), seated height (0.026" / 0.65mm maximum), and number of terminations (2) must match exactly.

Functional Parameters: Composition (thick film) and current sense feature classification must be maintained.

The substitute part RL73H2AR30FTD meets all electrical and mechanical equivalence criteria. Compliance status differences are noted in the parameter comparison table and engineering selection recommendations section.

Parameter Comparison

Engineering Selection Recommendations

The RL73H2AR30FTD serves as a direct electrical and mechanical equivalent to the RL73H2AR30FTDF. Both parts are manufactured by TE Connectivity Passive Product within the RL73 series and share identical specifications for resistance, tolerance, power rating, temperature performance, and physical dimensions.

The primary distinction between these parts is regulatory compliance status. The RL73H2AR30FTDF carries RoHS3 compliance certification, while the RL73H2AR30FTD is RoHS non-compliant. Selection between these parts depends on application requirements and regulatory constraints.

For applications subject to RoHS3 requirements or equivalent environmental compliance mandates, the RL73H2AR30FTDF is the appropriate selection. For applications without RoHS compliance requirements, the RL73H2AR30FTD provides equivalent electrical and mechanical performance with significantly higher inventory availability (43,583 pieces versus 689 pieces).

Both parts maintain Active product status, indicating ongoing manufacturer support and availability through standard distribution channels.

Frequently Asked Questions (FAQ)

Q: Are the RL73H2AR30FTDF and RL73H2AR30FTD electrically identical?

A: Yes. Both parts share identical electrical specifications: 300 mOhms resistance, ±1% tolerance, 0.125W power rating, ±100ppm/°C temperature coefficient, and -55°C ~ 155°C operating temperature range.

Q: Are the physical dimensions and package types identical?

A: Yes. Both parts use the 0805 (2012 Metric) package with identical dimensions of 0.079" L x 0.049" W (2.00mm x 1.25mm) and maximum seated height of 0.026" (0.65mm). They are mechanically interchangeable on PCBs designed for 0805 resistors.

Q: What is the difference between these two parts?

A: The RL73H2AR30FTDF is RoHS3 compliant, while the RL73H2AR30FTD is RoHS non-compliant. All other specifications, including electrical performance, mechanical dimensions, and functional characteristics, are identical.

Q: Which part should I select for my application?

A: Selection depends on regulatory requirements. If your application or end market requires RoHS3 compliance, use the RL73H2AR30FTDF. If RoHS compliance is not required, either part is suitable based on availability and cost considerations.

Q: Are both parts currently available?

A: Yes. Both parts maintain Active product status. The RL73H2AR30FTD has significantly higher inventory availability (43,583 pieces) compared to the RL73H2AR30FTDF (689 pieces).

Q: Can I substitute one part for the other on my PCB?

A: Yes, provided compliance requirements are satisfied. The parts are mechanically and electrically equivalent and will function identically in circuits designed for 0805 thick film current sense resistors with 300 mOhms ±1% specifications.

Q: What is the moisture sensitivity level for these parts?

A: Both parts carry MSL 1 (Unlimited) rating, indicating no moisture sensitivity restrictions for storage or handling.