Equivalent & Substitute Parts for RN732ATTD3011F25

Part Overview

The RN732ATTD3011F25 is a 3.01 kOhms ±1% 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 moisture-resistant construction with a temperature coefficient of ±25ppm/°C and operates across -55°C to 155°C. The part is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement continuity.

Substiute Parts

RN732ATTD3011F25

KOA Speer Electronics, Inc.In Stock: 735RN732ATTD3011F25 Datasheet

Current PartRFQ

RN73R2ATTD3011F25

KOA Speer Electronics, Inc.In Stock: 1090RN73R2ATTD3011F25 Datasheet

DirectRFQ

RNCF0805BTE3K10

Stackpole Electronics IncIn Stock: 790RNCF0805BTE3K10 Datasheet

UpgradeRFQ

TNPW08053K01BETA

Vishay DaleIn Stock: 909TNPW08053K01BETA Datasheet

UpgradeRFQ

RG2012P-3011-B-T5

SusumuIn Stock: 14032RG2012P-3011-B-T5 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RN732ATTD3011F25 is determined by the following critical parameters:

Mandatory Compatibility Criteria:

• Resistance value: 3.01 kOhms (tolerance of ±0.1% or better is acceptable; ±1% is baseline)
• Package format: 0805 (2012 Metric) only
• Composition: Thin film construction
• Temperature coefficient: ±25ppm/°C
• Operating temperature range: Minimum -55°C ~ 155°C
• Moisture Sensitivity Level: 1 (Unlimited)

Acceptable Parameter Variations:

• Power rating: Equal to or greater than 0.1W (upgrades to 0.125W or 0.25W are acceptable)
• Tolerance: Equal to or tighter than ±1% (±0.1% substitutes are acceptable)

Compliance Considerations:

• RoHS3 compliance preferred for new designs
• Automotive AEC-Q200 certification adds design flexibility for automotive applications
• Military-grade specifications available for specialized applications

Four substitute parts meet these criteria, grouped by substitution type and product status.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitution (Same Manufacturer Series):

RN73R2ATTD3011F25 is the direct successor within the KOA Speer Electronics product line. This part maintains identical resistance (3.01 kOhms), tolerance (±1%), and temperature coefficient (±25ppm/°C) specifications. The power rating upgrade from 0.1W to 0.125W provides enhanced thermal margin without affecting circuit performance. This part carries active product status, ROHS3 compliance, and Automotive AEC-Q200 certification, making it the primary replacement for the obsolete RN732ATTD3011F25.

Upgrade Substitutions (Enhanced Performance):

RNCF0805BTE3K10 (Stackpole Electronics Inc) offers the highest power rating at 0.25W with improved tolerance of ±0.1%. The resistance value is 3.1 kOhms, representing a 0.3% deviation from the original specification. This part is suitable for applications requiring enhanced power dissipation capability and tighter tolerance control. Automotive AEC-Q200 certification and ROHS3 compliance are included.

TNPW08053K01BETA (Vishay Dale) provides military-grade construction with ±0.1% tolerance and exact 3.01 kOhms resistance matching. This part is appropriate for defense and aerospace applications. Note: Operating temperature range is limited to -55°C ~ 125°C (versus 155°C maximum for other options), and RoHS non-compliance status requires evaluation against design requirements.

RG2012P-3011-B-T5 (Susumu) is the manufacturer-recommended substitute, offering exact 3.01 kOhms resistance with ±0.1% tolerance. Anti-sulfur feature provides enhanced reliability in corrosive environments. Automotive AEC-Q200 certification, ROHS3 compliance, and highest inventory availability (13,925 pcs) support production continuity. Operating temperature range extends to 155°C, matching the original specification.

Compliance Considerations:

All recommended substitutes maintain ROHS3 compliance except TNPW08053K01BETA. For new designs, RG2012P-3011-B-T5 or RN73R2ATTD3011F25 are preferred due to full regulatory alignment and active product status. For existing designs with established supply chains, RN73R2ATTD3011F25 provides the lowest integration risk.

Frequently Asked Questions (FAQ)

Q: Can RN73R2ATTD3011F25 directly replace RN732ATTD3011F25 without circuit modification?

A: Yes. Both parts share identical resistance (3.01 kOhms), tolerance (±1%), temperature coefficient (±25ppm/°C), and operating temperature range (-55°C ~ 155°C). The power rating increase from 0.1W to 0.125W is a non-breaking change that improves thermal performance. Physical dimensions and package format (0805) are identical.

Q: What is the significance of the ±0.1% tolerance upgrade in RNCF0805BTE3K10 and TNPW08053K01BETA?

A: Tolerance defines the maximum deviation from the nominal resistance value. The original RN732ATTD3011F25 allows ±1% deviation (±30.1 ohms from 3.01 kOhms). Upgraded parts with ±0.1% tolerance restrict deviation to ±3.01 ohms, providing tighter resistance control. This upgrade is beneficial for precision analog circuits, measurement applications, and high-accuracy signal conditioning but is not required for general-purpose applications.

Q: Is the 3.1 kOhms resistance value in RNCF0805BTE3K10 compatible with the original 3.01 kOhms specification?

A: The 3.1 kOhms value represents a 0.3% deviation from the original 3.01 kOhms specification. This substitution is acceptable only if circuit design tolerates this resistance variation. For applications with tight tolerance requirements or precision-dependent functionality, exact 3.01 kOhms parts (RN73R2ATTD3011F25, TNPW08053K01BETA, or RG2012P-3011-B-T5) are required.

Q: Why does TNPW08053K01BETA have a lower maximum operating temperature (125°C vs. 155°C)?

A: Military-grade thin film resistors (TNPW series) are designed to different performance specifications than commercial or automotive grades. The 125°C maximum reflects the military qualification standard for this product line. For applications requiring operation at temperatures above 125°C, alternative substitutes (RN73R2ATTD3011F25, RNCF0805BTE3K10, or RG2012P-3011-B-T5) are required.

Q: What does "Anti-Sulfur" feature in RG2012P-3011-B-T5 provide?

A: Anti-sulfur construction protects the resistor element from sulfur-containing atmospheric contaminants that can degrade performance in industrial or harsh environments. This feature enhances long-term reliability in applications exposed to sulfur compounds, hydrogen sulfide, or polluted air. For standard indoor or controlled environments, this feature provides no functional advantage.

Q: Are all substitute parts available in Tape & Reel (TR) packaging?

A: Yes. All four substitute parts are supplied in Tape & Reel format, supporting automated assembly processes. The original RN732ATTD3011F25 packaging format is not specified in the provided data; however, all substitutes maintain compatibility with standard SMD pick-and-place equipment configured for 0805 package format.

Q: Which substitute part offers the best long-term supply assurance?

A: RG2012P-3011-B-T5 (Susumu) demonstrates the highest inventory availability at 13,925 pcs, combined with active product status and manufacturer recommendation. This part is optimal for high-volume production requiring supply continuity. RN73R2ATTD3011F25 (KOA Speer Electronics) offers 1,033 pcs inventory with direct manufacturer lineage to the obsolete part.

Q: Can substitute parts be mixed within a single production batch?

A: Mixing substitute parts within a single batch is not recommended for applications where resistance tolerance or temperature coefficient consistency affects circuit performance. For precision applications, maintain single-part standardization. For general-purpose applications with wide tolerance margins, part mixing is acceptable if documented in design records.