RN732ATTD1150D50 Equivalent & Substitute Parts

Part Overview

The RN732ATTD1150D50 is a 115 Ohm thin film chip resistor manufactured by KOA Speer Electronics, Inc., rated at 0.1W (1/10W) in 0805 (2012 Metric) package format. This component features ±0.5% tolerance, moisture resistance, and operates across -55°C to 155°C. The part is currently listed as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design requirements and procurement needs.

Substiute Parts

RN732ATTD1150D50

KOA Speer Electronics, Inc.In Stock: 1094RN732ATTD1150D50 Datasheet

Current PartRFQ

RN73R2ATTD1150D50

KOA Speer Electronics, Inc.In Stock: 1083RN73R2ATTD1150D50 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RN732ATTD1150D50 is determined by strict equivalence across the following parameters:

• Resistance value: 115 Ohms (exact match required)
• Tolerance: ±0.5% (exact match required)
• Package format: 0805 (2012 Metric) (exact match required)
• Composition: Thin Film (exact match required)
• Temperature Coefficient: ±50ppm/°C (exact match required)
• Operating Temperature Range: -55°C ~ 155°C (exact match required)
• Moisture Resistance: Required feature
• RoHS3 Compliance: Required

The RN73R2ATTD1150D50 meets all substitution criteria. While this part features a higher power rating (0.125W vs. 0.1W), it maintains identical electrical characteristics, package dimensions, and environmental specifications. The increased power rating does not restrict its use in applications designed for the lower-rated component.

Parameter Comparison

Engineering Selection Recommendations

The RN73R2ATTD1150D50 is the direct substitute for the obsolete RN732ATTD1150D50. Both components are manufactured by KOA Speer Electronics, Inc., and maintain identical electrical and mechanical specifications across all critical parameters.

The substitute part carries Active product status, ensuring continued availability and supply chain reliability. The RN73R2ATTD1150D50 includes AEC-Q200 automotive qualification, providing additional reliability assurance beyond the base specification. The increased power rating (0.125W vs. 0.1W) presents no compatibility constraints for applications originally designed around the 0.1W specification.

Both parts maintain ROHS3 compliance and unlimited moisture sensitivity rating (MSL 1), supporting deployment in standard industrial and commercial environments without additional handling requirements.

Frequently Asked Questions (FAQ)

Q: Can the RN73R2ATTD1150D50 directly replace the RN732ATTD1150D50 in existing designs?

A: Yes. The substitute part maintains identical resistance value (115 Ohms), tolerance (±0.5%), package format (0805), and operating temperature range (-55°C ~ 155°C). Physical dimensions and termination count are identical, enabling direct PCB-level substitution without layout modification.

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

A: The RN73R2ATTD1150D50 is rated at 0.125W compared to the original 0.1W rating. A higher power rating indicates greater thermal dissipation capability and does not restrict use in applications designed for lower power specifications. This characteristic provides additional design margin.

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

A: No. AEC-Q200 is an automotive reliability qualification that establishes additional quality and testing standards. Its presence on the substitute part does not create incompatibility with non-automotive applications; it represents an enhanced specification level.

Q: Are there packaging differences between these parts?

A: Both parts are supplied in 0805 (2012 Metric) package format with identical physical dimensions (0.079" L x 0.049" W, 2.00mm x 1.25mm) and maximum seated height (0.024" / 0.60mm). The substitute part is available in Tape & Reel (TR) packaging, while the original part information does not specify packaging format.

Q: What compliance certifications apply to both parts?

A: Both the RN732ATTD1150D50 and RN73R2ATTD1150D50 are ROHS3 compliant and REACH unaffected. Both maintain Moisture Sensitivity Level 1 (Unlimited), indicating no special moisture handling requirements during storage or assembly.