RN732ATTD1980F50 Equivalent & Substitute Parts

Part Overview

The RN732ATTD1980F50 is a 198 Ohm ±1% thin film chip resistor in 0805 (2012 Metric) package rated at 0.1W (1/10W) power dissipation. Manufactured by KOA Speer Electronics, Inc., this component is classified as obsolete. Due to its obsolete status, equivalent and substitute parts with active production status are available to ensure design continuity and supply chain reliability.

Substiute Parts

RN732ATTD1980F50

KOA Speer Electronics, Inc.In Stock: 886RN732ATTD1980F50 Datasheet

Current PartRFQ

RN73R2ATTD1980F50

KOA Speer Electronics, Inc.In Stock: 1015RN73R2ATTD1980F50 Datasheet

DirectRFQ

PHP00805H1980BBT1

Vishay Dale Thin FilmIn Stock: 810PHP00805H1980BBT1 Datasheet

UpgradeRFQ

PHP00805H1980BST1

Vishay Dale Thin FilmIn Stock: 857PHP00805H1980BST1 Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the RN732ATTD1980F50 is determined by the following critical parameters:

• Resistance Value: 198 Ohms (exact match required)
• Tolerance: ±1% or better (±0.1% is acceptable as tighter tolerance)
• Package / Case: 0805 (2012 Metric) (physical and electrical compatibility)
• Composition: Thin Film (maintains performance characteristics)
• Temperature Coefficient: ±50ppm/°C (performance stability requirement)
• Operating Temperature Range: -55°C ~ 155°C (environmental compatibility)

Substitute parts are grouped into two categories:

Direct Equivalent: RN73R2ATTD1980F50 maintains identical electrical specifications with higher power rating (0.125W vs 0.1W) and active product status.

Upgrade Substitutes: PHP00805H1980BBT1 and PHP00805H1980BST1 provide enhanced specifications including higher power rating (0.63W), tighter tolerance (±0.1%), and additional safety features while maintaining core electrical parameters.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement with Active Product Status: RN73R2ATTD1980F50 is the primary substitute. It maintains identical electrical specifications to the obsolete RN732ATTD1980F50 while offering higher power rating (0.125W vs 0.1W), active product status, and automotive-grade AEC-Q200 qualification. ROHS3 compliance is maintained.

For Enhanced Performance Requirements: PHP00805H1980BST1 provides upgraded specifications including 0.63W power rating, ±0.1% tolerance, and flame-proof safety features while maintaining ROHS3 compliance. This option is suitable for applications requiring higher power dissipation or tighter tolerance control.

For Non-RoHS Compliant Applications: PHP00805H1980BBT1 offers identical performance to PHP00805H1980BST1 with RoHS non-compliant status, applicable only where RoHS exemptions are permitted.

All substitute parts maintain identical package dimensions (0805 / 2012 Metric), thermal characteristics (±50ppm/°C), and operating temperature range (-55°C ~ 155°C), ensuring direct PCB compatibility.

Frequently Asked Questions (FAQ)

Q: Can RN73R2ATTD1980F50 be used as a direct replacement for RN732ATTD1980F50?

A: Yes. Both parts share identical resistance (198 Ohms), tolerance (±1%), package (0805), composition (thin film), temperature coefficient (±50ppm/°C), and operating temperature range (-55°C ~ 155°C). The RN73R2ATTD1980F50 has higher power rating (0.125W vs 0.1W), which is compatible with applications designed for the lower-rated part.

Q: What are the differences between the KOA Speer and Vishay Dale substitutes?

A: KOA Speer RN73R2ATTD1980F50 maintains ±1% tolerance and 0.125W power rating with automotive AEC-Q200 qualification. Vishay Dale PHP series parts offer tighter tolerance (±0.1%), higher power rating (0.63W), and flame-proof safety features. All maintain identical package and thermal specifications.

Q: Are the physical dimensions identical across all substitute parts?

A: Package designation is identical (0805 / 2012 Metric) for all parts. Slight dimensional variations exist: RN732ATTD1980F50, RN73R2ATTD1980F50 are 0.079" L x 0.049" W with 0.024" max height; PHP series parts are 0.080" L x 0.050" W with 0.033" max height. These variations remain within 0805 package tolerance and do not affect PCB footprint compatibility.

Q: Which substitute is recommended for RoHS-compliant applications?

A: Both RN73R2ATTD1980F50 and PHP00805H1980BST1 are ROHS3 compliant. PHP00805H1980BBT1 is RoHS non-compliant and should not be used in RoHS-regulated applications.

Q: Can higher power-rated substitutes be used in circuits designed for 0.1W?

A: Yes. Higher power ratings (0.125W or 0.63W) are compatible with circuits designed for 0.1W operation. The resistor will operate at lower stress levels, improving reliability and thermal performance.

Q: What is the significance of the temperature coefficient specification?

A: All substitute parts maintain ±50ppm/°C temperature coefficient, ensuring identical resistance stability across the -55°C ~ 155°C operating range. This parameter is critical for precision applications and must not be compromised during substitution.