RN732ATTD1182C25 Equivalent & Substitute Parts

Part Overview

The RN732ATTD1182C25 is an 11.8 kOhms ±0.25% thin film chip resistor manufactured by KOA Speer Electronics, Inc. in 0805 (2012 Metric) package format with 0.1W power rating. This component features moisture-resistant construction and operates across the temperature range of -55°C to 155°C.

The RN732ATTD1182C25 carries an Obsolete product status. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for applications utilizing this resistor specification.

Substiute Parts

RN732ATTD1182C25

KOA Speer Electronics, Inc.In Stock: 1042RN732ATTD1182C25 Datasheet

Current PartRFQ

RN73R2ATTD1182C25

KOA Speer Electronics, Inc.In Stock: 1176RN73R2ATTD1182C25 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RN732ATTD1182C25 is determined by the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 11.8 kOhms
• Tolerance: ±0.25%
• Package / Case: 0805 (2012 Metric)
• Composition: Thin Film
• Temperature Coefficient: ±25ppm/°C
• Operating Temperature Range: -55°C ~ 155°C
• Moisture Resistant feature

Allowable Variation Parameters:

• Power Rating: Substitute parts may have equal or higher power rating (0.1W or greater)
• Product Status: Active status substitutes are acceptable for obsolete parts
• Packaging Format: Different packaging formats (Tape & Reel vs. other formats) are acceptable if electrical and mechanical specifications remain identical

The RN73R2ATTD1182C25 qualifies as a direct substitute based on matching all mandatory parameters while offering enhanced power rating (0.125W vs. 0.1W) and active product status with automotive-grade qualification.

Parameter Comparison

Engineering Selection Recommendations

The RN73R2ATTD1182C25 is the qualified substitute for the obsolete RN732ATTD1182C25. Selection of this substitute is supported by the following engineering factors:

Product Status Transition: The RN732ATTD1182C25 is classified as Obsolete, creating supply constraints. The RN73R2ATTD1182C25 maintains Active product status, ensuring long-term availability and manufacturing continuity.

Electrical Equivalence: Both parts maintain identical resistance (11.8 kOhms), tolerance (±0.25%), temperature coefficient (±25ppm/°C), and operating temperature range (-55°C ~ 155°C). These parameters ensure functional equivalence in circuit applications.

Mechanical Compatibility: Both parts utilize the 0805 (2012 Metric) package with identical physical dimensions (0.079" L x 0.049" W, 2.00mm x 1.25mm) and maximum seated height (0.024" / 0.60mm). PCB layout and assembly processes require no modification.

Power Rating Enhancement: The RN73R2ATTD1182C25 provides 0.125W power rating compared to the 0.1W rating of the original part. This represents a 25% increase in power dissipation capability, maintaining margin in thermal performance without introducing design risk.

Compliance Certifications: Both parts are ROHS3 Compliant, REACH Unaffected, and classified as EAR99 for export control purposes. The substitute carries additional Automotive AEC-Q200 qualification, indicating enhanced reliability screening and quality assurance protocols.

Moisture Resistance: Both parts feature moisture-resistant thin film construction with MSL 1 (Unlimited) rating, ensuring equivalent performance in humidity-sensitive applications.

Frequently Asked Questions (FAQ)

Q: Can the RN73R2ATTD1182C25 be used as a direct replacement for the RN732ATTD1182C25 in existing designs?

A: Yes. The RN73R2ATTD1182C25 is a direct substitute. All critical electrical parameters (resistance, tolerance, temperature coefficient, operating temperature range) and mechanical specifications (package, dimensions, terminations) are identical. The substitute offers higher power rating and active product status.

Q: What is the difference in power rating between these two parts?

A: The RN732ATTD1182C25 is rated at 0.1W (1/10W), while the RN73R2ATTD1182C25 is rated at 0.125W (1/8W). The substitute provides 25% additional power dissipation capacity. In applications where the original part operated within its power budget, the substitute will operate with increased thermal margin.

Q: Are there any PCB layout or assembly modifications required when switching to the RN73R2ATTD1182C25?

A: No modifications are required. Both parts use the 0805 (2012 Metric) package with identical physical dimensions and footprint. PCB layouts, pick-and-place programming, and reflow profiles remain unchanged.

Q: What is the significance of the Automotive AEC-Q200 qualification on the substitute part?

A: AEC-Q200 is an automotive industry standard qualification that specifies enhanced reliability testing, quality assurance, and traceability requirements. This certification indicates the RN73R2ATTD1182C25 has undergone additional screening and validation protocols beyond standard commercial-grade testing.

Q: Are both parts RoHS compliant?

A: Yes. Both the RN732ATTD1182C25 and RN73R2ATTD1182C25 are ROHS3 Compliant and REACH Unaffected, meeting current environmental and regulatory requirements for electronic components.

Q: What packaging formats are available for the RN73R2ATTD1182C25?

A: The RN73R2ATTD1182C25 is supplied in Tape & Reel (TR) packaging format. Verify packaging requirements for your procurement and assembly processes.

Q: Why is the original RN732ATTD1182C25 marked as Obsolete?

A: Obsolete status indicates the manufacturer has discontinued production and support for this part number. The RN73R2ATTD1182C25 represents the active product line continuation with equivalent specifications and enhanced features.