RN732ATTD3003C50 Equivalent & Substitute Parts

Part Overview

The RN732ATTD3003C50 is a 300 kOhms ±0.25% thin film chip resistor in 0805 (2012 Metric) package with 0.1W power rating. This component is classified as Obsolete, necessitating identification of equivalent substitute parts for ongoing design requirements and procurement needs. The part features moisture-resistant construction and operates across -55°C to 155°C temperature range.

Substiute Parts

RN732ATTD3003C50

KOA Speer Electronics, Inc.In Stock: 1050RN732ATTD3003C50 Datasheet

Current PartRFQ

RN73R2ATTD3003C50

KOA Speer Electronics, Inc.In Stock: 1102RN73R2ATTD3003C50 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of RN732ATTD3003C50 is determined by the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 300 kOhms
• Tolerance: ±0.25%
• Package / Case: 0805 (2012 Metric)
• Composition: Thin Film
• Temperature Coefficient: ±50ppm/°C
• Operating Temperature Range: -55°C ~ 155°C
• Moisture Resistant feature

Allowable Variation Parameters:

• Power Rating: Substitute must equal or exceed 0.1W
• Product Status: Active status preferred for obsolete parts
• Certifications and compliance: Additional certifications acceptable

The substitute part RN73R2ATTD3003C50 maintains all mandatory matching parameters while providing higher power rating (0.125W vs 0.1W) and active product status with AEC-Q200 automotive qualification.

Parameter Comparison

Engineering Selection Recommendations

RN73R2ATTD3003C50 is the direct substitute for RN732ATTD3003C50. Selection rationale:

Product Status: RN73R2ATTD3003C50 maintains Active status, ensuring long-term availability and supply chain continuity compared to the Obsolete RN732ATTD3003C50.

Electrical Compatibility: Both parts share identical resistance (300 kOhms), tolerance (±0.25%), temperature coefficient (±50ppm/°C), and operating temperature range (-55°C ~ 155°C). The substitute's higher power rating (0.125W vs 0.1W) provides additional thermal margin without affecting circuit performance.

Mechanical Compatibility: Identical 0805 (2012 Metric) package dimensions and footprint ensure direct PCB layout compatibility with no redesign required.

Compliance: Both parts maintain ROHS3 compliance and REACH Unaffected status. RN73R2ATTD3003C50 includes AEC-Q200 automotive qualification, providing enhanced reliability certification suitable for automotive and industrial applications.

Packaging: RN73R2ATTD3003C50 is supplied in Tape & Reel (TR) format, standard for production environments.

Frequently Asked Questions (FAQ)

Q: Can RN73R2ATTD3003C50 directly replace RN732ATTD3003C50 without circuit modification?

A: Yes. Both parts share identical electrical parameters (300 kOhms, ±0.25% tolerance, ±50ppm/°C temperature coefficient, -55°C to 155°C operating range) and mechanical dimensions (0805 package). The substitute's higher power rating (0.125W vs 0.1W) is a non-limiting improvement.

Q: What is the significance of the power rating difference between 0.1W and 0.125W?

A: The substitute part RN73R2ATTD3003C50 has a 25% higher power dissipation capability. This provides additional thermal headroom in the circuit and does not create compatibility issues. The substitute can be used in any application designed for the original 0.1W part.

Q: Are the physical dimensions identical between both parts?

A: Yes. Both RN732ATTD3003C50 and RN73R2ATTD3003C50 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 of 0.024" (0.60mm). No PCB layout changes are required.

Q: What does AEC-Q200 certification on the substitute part indicate?

A: AEC-Q200 is an automotive industry qualification standard. RN73R2ATTD3003C50 meets this standard, indicating enhanced reliability testing and quality assurance. This certification is beneficial for automotive and high-reliability applications but does not restrict use in non-automotive circuits.

Q: Are both parts RoHS compliant?

A: Yes. Both RN732ATTD3003C50 and RN73R2ATTD3003C50 are ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements.

Q: What is the Moisture Sensitivity Level (MSL) for these parts?

A: Both parts have MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. Standard handling and storage procedures apply without special moisture control requirements.