RN731JTTD2741C10 Equivalent & Substitute Parts

Part Overview

The RN731JTTD2741C10 is a 2.74 kOhms ±0.25% thin film chip resistor manufactured by KOA Speer Electronics, Inc. in 0603 (1608 Metric) package format. This component is rated for 0.063W (1/16W) power dissipation with moisture-resistant construction and operates across -55°C to 155°C temperature range.

The RN731JTTD2741C10 carries an Obsolete product status. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or repair requirements for applications utilizing this resistor specification.

Substiute Parts

RN731JTTD2741C10

KOA Speer Electronics, Inc.In Stock: 762RN731JTTD2741C10 Datasheet

Current PartRFQ

RN73R1JTTD2741C10

KOA Speer Electronics, Inc.In Stock: 878RN73R1JTTD2741C10 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RN731JTTD2741C10 is determined by the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 2.74 kOhms
• Tolerance: ±0.25%
• Package format: 0603 (1608 Metric)
• Composition: Thin Film
• Temperature Coefficient: ±10ppm/°C
• Operating Temperature Range: -55°C to 155°C
• Moisture Resistant construction
• RoHS3 Compliance

Allowable Variation Parameters:

• Power rating may be equal to or greater than 0.063W (1/16W)
• Product status may differ (Active status preferred over Obsolete)
• Packaging format may vary (bulk to Tape & Reel conversion acceptable)
• Additional certifications (such as AEC-Q200) do not disqualify substitution

The RN73R1JTTD2741C10 qualifies as a direct substitute based on matching all mandatory parameters while offering increased power rating (0.1W vs. 0.063W) and Active product status.

Parameter Comparison

Engineering Selection Recommendations

RN73R1JTTD2741C10 as Primary Substitute:

The RN73R1JTTD2741C10 is the direct equivalent for the obsolete RN731JTTD2741C10. This substitute maintains identical electrical specifications across resistance, tolerance, temperature coefficient, and operating temperature range. The 0603 package footprint and thin film composition ensure mechanical and thermal compatibility in existing PCB designs.

The substitute offers two significant advantages:

1. Active Product Status: The RN73R1JTTD2741C10 maintains Active status with KOA Speer Electronics, ensuring long-term availability and supply chain continuity compared to the Obsolete RN731JTTD2741C10.

2. Increased Power Rating: The 0.1W (1/10W) power rating exceeds the original 0.063W (1/16W) specification, providing enhanced thermal margin and reliability in applications where power dissipation approaches design limits.

Both parts carry ROHS3 compliance and identical Moisture Sensitivity Level (MSL 1), confirming regulatory and handling equivalence. The AEC-Q200 automotive qualification on the substitute indicates additional quality assurance testing, which does not restrict use in non-automotive applications.

Frequently Asked Questions (FAQ)

Q: Can the RN73R1JTTD2741C10 be used as a direct replacement for the RN731JTTD2741C10 in existing designs?

A: Yes. The RN73R1JTTD2741C10 is electrically and mechanically equivalent. Both parts share identical resistance (2.74 kOhms), tolerance (±0.25%), package (0603), temperature coefficient (±10ppm/°C), and operating temperature range (-55°C to 155°C). No circuit redesign is required.

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

A: The RN73R1JTTD2741C10 is rated for 0.1W versus the original 0.063W. This higher rating provides additional thermal headroom and does not negatively impact circuit performance. The substitute can safely operate in any application designed for the original part.

Q: Are there packaging differences between these parts?

A: The RN731JTTD2741C10 is supplied in bulk packaging, while the RN73R1JTTD2741C10 is supplied in Tape & Reel (TR) format. Both contain identical components in the same 0603 package. Tape & Reel packaging is standard for automated assembly processes and does not affect component performance.

Q: Does the AEC-Q200 certification on the substitute restrict its use?

A: No. AEC-Q200 is an automotive qualification standard. Parts meeting this standard exceed general industrial requirements and are suitable for all applications, including non-automotive use.

Q: Are both parts RoHS compliant?

A: Yes. Both the RN731JTTD2741C10 and RN73R1JTTD2741C10 are ROHS3 compliant and carry identical Moisture Sensitivity Level (MSL 1), confirming equivalent environmental and regulatory status.

Q: What is the basis for substitution compatibility?

A: Substitution is based on matching critical electrical parameters (resistance, tolerance, temperature coefficient, operating temperature range), identical package format (0603), identical composition (thin film), and equivalent moisture resistance. The substitute's higher power rating and Active status represent improvements over the obsolete original part.