RN732ATTD1183D50 Equivalent & Substitute Parts

Part Overview

The RN732ATTD1183D50 is a 118 kOhms ±0.5% thin film chip resistor in 0805 (2012 Metric) package rated for 0.1W (1/10W) power dissipation. This component is classified as obsolete, necessitating identification of active equivalent parts for ongoing design requirements and procurement continuity. The part features moisture-resistant construction and operates across the temperature range of -55°C to 155°C.

Substiute Parts

RN732ATTD1183D50

KOA Speer Electronics, Inc.In Stock: 993RN732ATTD1183D50 Datasheet

Current PartRFQ

RN73R2ATTD1183D50

KOA Speer Electronics, Inc.In Stock: 819RN73R2ATTD1183D50 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RN732ATTD1183D50 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 118 kOhms
• Tolerance: ±0.5%
• Package / Case: 0805 (2012 Metric)
• Composition: Thin Film
• Temperature Coefficient: ±50ppm/°C
• Operating Temperature Range: -55°C ~ 155°C
• Moisture Resistant feature

Allowable Variation:

• Power rating may be equal to or greater than the original 0.1W specification
• Product status may transition from obsolete to active
• Packaging format may differ (bulk to Tape & Reel)
• Additional certifications (such as AEC-Q200) do not disqualify substitution

The RN73R2ATTD1183D50 meets all mandatory matching criteria and qualifies as a direct substitute.

Parameter Comparison

Engineering Selection Recommendations

The RN73R2ATTD1183D50 is a direct functional equivalent to the RN732ATTD1183D50. Selection of the substitute part is supported by the following factors:

Product Status: The substitute part maintains active production status, ensuring long-term availability and supply chain continuity compared to the obsolete main part.

Electrical Equivalence: Both parts share identical resistance value (118 kOhms), tolerance (±0.5%), temperature coefficient (±50ppm/°C), and operating temperature range (-55°C ~ 155°C). The substitute's increased power rating (0.125W versus 0.1W) provides additional thermal margin without affecting circuit performance.

Mechanical Compatibility: Both parts are housed in identical 0805 (2012 Metric) packages with matching physical dimensions and termination count, enabling direct PCB footprint compatibility.

Compliance: Both parts are ROHS3 compliant and REACH unaffected. The substitute carries AEC-Q200 automotive qualification, which does not restrict its use in non-automotive applications.

Packaging: The substitute is supplied in Tape & Reel format, standard for production environments, whereas the main part was supplied in bulk. This represents a standard industry transition and does not affect component functionality.

Frequently Asked Questions (FAQ)

Q: Can the RN73R2ATTD1183D50 be used as a direct replacement for the RN732ATTD1183D50?

A: Yes. Both parts are 118 kOhms ±0.5% thin film resistors in 0805 package with identical electrical and thermal specifications. The substitute's higher power rating (0.125W) and active production status make it a suitable replacement.

Q: What is the difference in power rating between these parts?

A: The main part is rated for 0.1W (1/10W), while the substitute is rated for 0.125W (1/8W). The substitute's higher power rating provides additional thermal capacity and does not negatively impact circuit operation when the original 0.1W rating is sufficient.

Q: Are the physical dimensions identical?

A: Yes. Both parts measure 0.079" L x 1.25mm W (2.00mm x 1.25mm) with a maximum seated height of 0.024" (0.60mm). They are mechanically interchangeable on PCB layouts designed for 0805 package components.

Q: Does the AEC-Q200 certification on the substitute part affect its use in non-automotive applications?

A: No. AEC-Q200 is an automotive qualification standard. Parts meeting this standard exceed general industrial requirements and are suitable for any application requiring the specified electrical and thermal characteristics.

Q: What is the significance of the product status change from obsolete to active?

A: The substitute part is in active production, ensuring reliable long-term availability and consistent supply. The main part's obsolete status indicates discontinued production, making the active substitute the appropriate choice for new designs and ongoing procurement.

Q: Are both parts RoHS3 compliant?

A: Yes. Both the RN732ATTD1183D50 and RN73R2ATTD1183D50 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.