RN732ATTD3922A05 Equivalent & Substitute Parts

Part Overview

The RN732ATTD3922A05 is a 39.2 kOhms ±0.05% thin film chip resistor manufactured by KOA Speer Electronics, Inc. in 0805 (2012 Metric) package format with 0.1W power rating. This component is classified as obsolete product status. Locating equivalent and substitute parts is necessary due to discontinued availability and to support ongoing production requirements where alternative specifications may be acceptable within application parameters.

Substiute Parts

RN732ATTD3922A05

KOA Speer Electronics, Inc.In Stock: 850RN732ATTD3922A05 Datasheet

Current PartRFQ

RN73R2ATTD3922A05

KOA Speer Electronics, Inc.In Stock: 677RN73R2ATTD3922A05 Datasheet

DirectRFQ

PLT0805Z3922LBTS

Vishay Dale Thin FilmIn Stock: 1065PLT0805Z3922LBTS Datasheet

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PLTT0805Z3922AGT5

Vishay Dale Thin FilmIn Stock: 1201PLTT0805Z3922AGT5 Datasheet

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PLTT0805Z3922QGT5

Vishay Dale Thin FilmIn Stock: 713PLTT0805Z3922QGT5 Datasheet

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TNPU080539K2AZEN00

Vishay DaleIn Stock: 709TNPU080539K2AZEN00 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RN732ATTD3922A05 is determined by the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 39.2 kOhms (exact match required)
• Package / Case: 0805 (2012 Metric) (exact match required)
• Composition: Thin Film (exact match required)
• Temperature Coefficient: ±5ppm/°C (exact match required)
• Moisture Sensitivity Level: 1 (Unlimited) (exact match required)

Allowable Variation Parameters:

• Tolerance: ±0.05% or tighter (lower tolerance values are acceptable)
• Power Rating: 0.1W or higher (higher power ratings are acceptable)
• Operating Temperature Range: Must encompass or extend the original -55°C ~ 155°C range
• RoHS Status: ROHS3 Compliant preferred; non-compliant parts noted where applicable
• Product Status: Active status preferred over obsolete

All substitute parts listed meet the mandatory matching parameters. Variations in tolerance, power rating, and operating temperature are documented in the comparison table below.

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent (Same Specifications):

RN73R2ATTD3922A05 is the direct equivalent from KOA Speer Electronics, Inc. This part maintains identical electrical specifications (39.2 kOhms ±0.05%, ±5ppm/°C temperature coefficient, -55°C ~ 155°C operating range) and package format. The primary difference is higher power rating (0.125W vs. 0.1W), which provides additional thermal margin. This part is active product status and ROHS3 compliant. It includes automotive AEC-Q200 qualification, making it suitable for applications requiring automotive-grade reliability.

Upgraded Specifications (Higher Performance):

PLTT0805Z3922AGT5 and PLTT0805Z3922QGT5 from Vishay Dale Thin Film offer increased power rating (0.25W) and extended operating temperature range (-55°C ~ 215°C). Both are ROHS3 compliant and active products. PLTT0805Z3922QGT5 provides tighter tolerance (±0.02% vs. ±0.05%), while PLTT0805Z3922AGT5 maintains the original ±0.05% tolerance. Both include anti-corrosive, flame-proof, and safety features.

PLT0805Z3922LBTS from Vishay Dale offers the tightest tolerance (±0.01%) and highest power rating (0.25W) among all substitutes. This part is active product status but is RoHS non-compliant. Operating temperature range is -55°C ~ 125°C, which does not extend above the original specification.

Automotive-Grade Alternative:

TNPU080539K2AZEN00 from Vishay Dale is qualified to automotive AEC-Q200 standard with anti-sulfur protection. Power rating is 0.125W and operating temperature range is -55°C ~ 125°C. This part is ROHS3 compliant and active product status.

Compliance Considerations:

All recommended substitutes except PLT0805Z3922LBTS are ROHS3 compliant. For applications requiring RoHS compliance, PLT0805Z3922LBTS must be excluded from selection.

Frequently Asked Questions (FAQ)

Q: Can RN73R2ATTD3922A05 be used as a direct replacement for RN732ATTD3922A05?

A: Yes. RN73R2ATTD3922A05 maintains identical resistance value (39.2 kOhms), tolerance (±0.05%), temperature coefficient (±5ppm/°C), operating temperature range (-55°C ~ 155°C), package format (0805), and composition (thin film). The higher power rating (0.125W vs. 0.1W) is a non-limiting improvement. Both are moisture resistant with MSL 1 rating and ROHS3 compliant.

Q: What is the difference between the Vishay Dale PLTT series parts?

A: PLTT0805Z3922AGT5 and PLTT0805Z3922QGT5 differ in tolerance specification. PLTT0805Z3922QGT5 provides ±0.02% tolerance, while PLTT0805Z3922AGT5 provides ±0.05% tolerance matching the original part. Both offer identical power rating (0.25W), operating temperature range (-55°C ~ 215°C), and package format. Selection depends on tolerance requirements of the application.

Q: Why does PLT0805Z3922LBTS have a lower operating temperature maximum than the original part?

A: PLT0805Z3922LBTS is specified for -55°C ~ 125°C operating range, which does not extend to the original 155°C upper limit. This part is suitable only for applications where maximum operating temperature does not exceed 125°C. For applications requiring operation up to 155°C or higher, PLTT0805Z3922AGT5 or PLTT0805Z3922QGT5 are appropriate alternatives with -55°C ~ 215°C range.

Q: Are all substitute parts available in the same packaging format?

A: The original RN732ATTD3922A05 is supplied in bulk packaging. All substitute parts are supplied in Tape & Reel (TR) format. This packaging difference does not affect electrical or mechanical compatibility but may impact procurement and assembly processes.

Q: Which substitute part is recommended for automotive applications?

A: Both RN73R2ATTD3922A05 and TNPU080539K2AZEN00 carry automotive AEC-Q200 qualification. RN73R2ATTD3922A05 maintains the original operating temperature range (-55°C ~ 155°C), while TNPU080539K2AZEN00 is limited to -55°C ~ 125°C. Selection depends on specific temperature requirements of the automotive application.

Q: What is the significance of the ±5ppm/°C temperature coefficient across all parts?

A: All listed parts, including the original and all substitutes, maintain identical temperature coefficient of ±5ppm/°C. This parameter determines resistance value stability across the operating temperature range and is critical for precision applications. The matching specification ensures equivalent performance in temperature-sensitive circuits.

Q: Can parts with higher power ratings be used in place of the original 0.1W part?

A: Yes. Higher power ratings (0.125W or 0.25W) are acceptable substitutions. Power rating indicates the maximum power dissipation capability. A part rated for higher power dissipation will operate safely at lower power levels. Physical dimensions may vary slightly; verify package dimensions if space constraints exist.

Q: What does ROHS3 compliance mean for these resistors?

A: ROHS3 compliance indicates the part meets Restriction of Hazardous Substances Directive requirements, restricting use of lead, cadmium, mercury, and other hazardous materials. All recommended substitutes except PLT0805Z3922LBTS are ROHS3 compliant. For applications requiring RoHS compliance, PLT0805Z3922LBTS must be excluded.