Equivalent & Substitute Parts for RN732ATTD1111F50

Part Overview

The RN732ATTD1111F50 is a 1.11 kOhms ±1% thin film chip resistor in 0805 (2012 Metric) package manufactured by KOA Speer Electronics, Inc. This component is rated for 0.1W (1/10W) power dissipation with moisture-resistant construction and operates across -55°C to 155°C. The part is currently obsolete, necessitating identification of functionally equivalent alternatives that maintain electrical and mechanical compatibility while meeting current application requirements.

Substiute Parts

RN732ATTD1111F50

KOA Speer Electronics, Inc.In Stock: 675RN732ATTD1111F50 Datasheet

Current PartRFQ

RN73R2ATTD1111F50

KOA Speer Electronics, Inc.In Stock: 1023RN73R2ATTD1111F50 Datasheet

DirectRFQ

PHP00805H1111BBT1

Vishay Dale Thin FilmIn Stock: 1132PHP00805H1111BBT1 Datasheet

UpgradeRFQ

PHP00805H1111BST1

Vishay Dale Thin FilmIn Stock: 1121PHP00805H1111BST1 Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RN732ATTD1111F50 is determined by the following criteria:

Mandatory Compatibility Parameters:

• Resistance value: 1.11 kOhms (exact match required)
• Package type: 0805 (2012 Metric) (physical and electrical compatibility)
• Composition: Thin Film (electrical characteristics and stability)
• Temperature Coefficient: ±50ppm/°C (thermal stability)
• Operating Temperature Range: -55°C to 155°C (environmental compatibility)
• Termination count: 2 (circuit interface compatibility)

Allowable Variation Parameters:

• Tolerance: ±1% or tighter (±0.1% is acceptable as an upgrade)
• Power Rating: Equal to or greater than 0.1W (higher ratings provide design margin)
• Product Status: Active preferred (obsolete parts present supply risk)
• Compliance: RoHS3 compliance preferred for regulatory alignment

The substitute parts listed below meet all mandatory parameters and represent either direct replacements or performance upgrades within the same package footprint.

Parameter Comparison

Engineering Selection Recommendations

Direct Replacement (Same Performance Class):

RN73R2ATTD1111F50 is the primary direct substitute for RN732ATTD1111F50. Both components are manufactured by KOA Speer Electronics with identical resistance, tolerance, temperature coefficient, and operating range. The RN73R2ATTD1111F50 offers increased power rating (0.125W vs. 0.1W), providing additional thermal margin. This part carries Active product status and includes Automotive AEC-Q200 qualification, making it suitable for applications requiring automotive-grade reliability. RoHS3 compliance is maintained.

Performance Upgrade (Enhanced Specifications):

PHP00805H1111BST1 and PHP00805H1111BBT1 represent performance upgrades manufactured by Vishay Dale Thin Film. Both provide tighter tolerance (±0.1% vs. ±1%) and significantly higher power rating (0.63W vs. 0.1W). These components include Flame Proof and Safety certifications. PHP00805H1111BST1 maintains RoHS3 compliance, while PHP00805H1111BBT1 does not. Selection between these Vishay options depends on regulatory compliance requirements.

Selection Criteria:

• For direct replacement with minimal design impact: RN73R2ATTD1111F50
• For applications requiring automotive qualification: RN73R2ATTD1111F50
• For applications requiring RoHS3 compliance and performance upgrade: PHP00805H1111BST1
• For applications where RoHS3 compliance is not required: PHP00805H1111BBT1

Frequently Asked Questions (FAQ)

Q: Can RN73R2ATTD1111F50 be used as a direct replacement for RN732ATTD1111F50?

A: Yes. Both parts share identical resistance (1.11 kOhms), tolerance (±1%), package (0805), composition (thin film), temperature coefficient (±50ppm/°C), and operating range (-55°C to 155°C). The RN73R2ATTD1111F50 has higher power rating (0.125W vs. 0.1W), which is compatible with the original design. The part is Active status with current availability.

Q: What is the difference between the two Vishay PHP parts?

A: PHP00805H1111BST1 and PHP00805H1111BBT1 are electrically and mechanically identical. The primary difference is RoHS3 compliance status: PHP00805H1111BST1 is RoHS3 compliant, while PHP00805H1111BBT1 is not. Both provide ±0.1% tolerance and 0.63W power rating.

Q: Will the higher power rating of the Vishay parts affect circuit performance?

A: No. Higher power rating indicates greater thermal capacity and does not alter electrical characteristics. Resistance value, tolerance, temperature coefficient, and operating range remain identical to the original part. The component will function identically in the circuit.

Q: Are there physical size differences between substitute parts?

A: All parts use 0805 (2012 Metric) package. Dimensional variations are minimal: KOA parts measure 2.00mm × 1.25mm with 0.60mm max height; Vishay parts measure 2.03mm × 1.27mm with 0.84mm max height. These differences are within standard PCB design tolerances for 0805 components.

Q: Which substitute part should be selected for new designs?

A: RN73R2ATTD1111F50 is recommended for new designs requiring KOA Speer components with automotive qualification. PHP00805H1111BST1 is recommended for applications requiring tighter tolerance (±0.1%), higher power margin, and RoHS3 compliance from an alternative manufacturer.

Q: Is the ±50ppm/°C temperature coefficient maintained across all substitutes?

A: Yes. All substitute parts maintain ±50ppm/°C temperature coefficient, ensuring thermal stability equivalent to the original RN732ATTD1111F50.