RN732ATTD3003F50 Equivalent & Substitute Parts

Part Overview

The RN732ATTD3003F50 is a 300 kOhms ±1% thin film chip resistor rated at 0.1W (1/10W) in 0805 (2012 Metric) package format. This component is manufactured by KOA Speer Electronics, Inc. and features moisture-resistant construction with a temperature coefficient of ±50ppm/°C and operating range of -55°C to 155°C.

The RN732ATTD3003F50 is classified as obsolete. Locating equivalent or substitute components is necessary to support ongoing maintenance, repair, and redesign activities where this part is specified in existing designs or inventory requirements.

Substiute Parts

RN732ATTD3003F50

KOA Speer Electronics, Inc.In Stock: 808RN732ATTD3003F50 Datasheet

Current PartRFQ

RN73R2ATTD3003F50

KOA Speer Electronics, Inc.In Stock: 911RN73R2ATTD3003F50 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RN732ATTD3003F50 is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 300 kOhms
• Tolerance: ±1%
• Package / Case: 0805 (2012 Metric)
• Composition: Thin Film
• Temperature Coefficient: ±50ppm/°C
• Operating Temperature Range: -55°C ~ 155°C
• Moisture Resistant construction

Allowable Variation:

• Power rating may be equal to or greater than 0.1W
• Product status may differ (active vs. obsolete)
• Packaging format may differ (bulk vs. Tape & Reel)
• Additional certifications or features may be present

The RN73R2ATTD3003F50 qualifies as a direct substitute based on these criteria. It maintains all mandatory electrical and mechanical parameters while offering a higher power rating (0.125W vs. 0.1W) and active product status with automotive AEC-Q200 qualification.

Parameter Comparison

Engineering Selection Recommendations

The RN73R2ATTD3003F50 is a direct functional substitute for the RN732ATTD3003F50 based on electrical and mechanical parameter equivalence. The substitute part offers the following advantages:

Product Status: The RN73R2ATTD3003F50 maintains active product status, ensuring continued availability and supply chain support compared to the obsolete RN732ATTD3003F50.

Power Rating: The substitute part is rated at 0.125W (1/8W), which exceeds the original 0.1W (1/10W) specification. This higher rating provides additional thermal margin in applications where the original part was specified.

Compliance & Certifications: Both parts maintain ROHS3 compliance and REACH unaffected status. The substitute part includes automotive AEC-Q200 qualification, which extends its applicability to automotive and high-reliability applications.

Mechanical Compatibility: Identical package dimensions (0805 / 2012 Metric), footprint, and termination count ensure direct PCB layout compatibility without redesign.

Electrical Performance: Resistance value, tolerance, temperature coefficient, and operating temperature range are identical, ensuring equivalent circuit performance.

Frequently Asked Questions (FAQ)

Q: Can the RN73R2ATTD3003F50 be used as a direct replacement for the RN732ATTD3003F50?

A: Yes. The RN73R2ATTD3003F50 is a direct substitute. Both parts share identical resistance (300 kOhms), tolerance (±1%), package (0805), composition (thin film), temperature coefficient (±50ppm/°C), and operating temperature range (-55°C ~ 155°C). The substitute part has a higher power rating (0.125W vs. 0.1W) and active product status.

Q: Are there any PCB layout or footprint changes required?

A: No. Both parts use the 0805 (2012 Metric) package with identical dimensions (0.079" L x 0.049" W / 2.00mm x 1.25mm) and maximum seated height (0.024" / 0.60mm). No PCB redesign is necessary.

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

A: The RN73R2ATTD3003F50 is rated at 0.125W compared to the original 0.1W. This higher rating provides additional thermal dissipation capability and margin in the application. The substitute part will operate cooler under identical current conditions.

Q: Does the AEC-Q200 qualification on the substitute part affect compatibility?

A: No. AEC-Q200 is an automotive qualification standard that indicates enhanced reliability testing and quality assurance. This certification does not restrict use in non-automotive applications and does not affect electrical or mechanical compatibility.

Q: Are the moisture-resistant properties identical?

A: Yes. Both parts feature moisture-resistant thin film construction with Moisture Sensitivity Level (MSL) 1 (Unlimited), indicating identical moisture handling and storage requirements.

Q: What is the difference between the packaging formats listed?

A: The RN732ATTD3003F50 is listed without specified packaging format, while the RN73R2ATTD3003F50 is supplied in Tape & Reel (TR) format. Both formats contain identical components; the difference is in the delivery and handling method. Tape & Reel format is standard for automated assembly processes.

Q: Are both parts RoHS compliant?

A: Yes. Both the RN732ATTD3003F50 and RN73R2ATTD3003F50 are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.