RN732ATTD4591F10 Equivalent & Substitute Parts

Part Overview

The RN732ATTD4591F10 is a 4.59 kOhms ±1% thin film chip resistor in 0805 (2012 Metric) package rated for 0.1W (1/10W) operation. This component is manufactured by KOA Speer Electronics, Inc. and features moisture-resistant construction with a temperature coefficient of ±10ppm/°C across an operating range of -55°C to 155°C.

The RN732ATTD4591F10 is classified as obsolete. Locating equivalent or substitute components is necessary for ongoing production support, design updates, and inventory replenishment where original stock becomes unavailable.

Substiute Parts

RN732ATTD4591F10

KOA Speer Electronics, Inc.In Stock: 977RN732ATTD4591F10 Datasheet

Current PartRFQ

RN73R2ATTD4591F10

KOA Speer Electronics, Inc.In Stock: 976RN73R2ATTD4591F10 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RN732ATTD4591F10 is determined by the following critical parameters:

Electrical Parameters:

• Resistance value: 4.59 kOhms
• Tolerance: ±1%
• Temperature coefficient: ±10ppm/°C
• Operating temperature range: -55°C to 155°C

Mechanical Parameters:

• Package type: 0805 (2012 Metric)
• Physical dimensions: 0.079" L x 0.049" W (2.00mm x 1.25mm)
• Height - Seated (Max): 0.024" (0.60mm)
• Number of terminations: 2

Material & Composition:

• Thin film construction
• Moisture resistant

Compliance:

• RoHS3 Compliant
• Moisture Sensitivity Level 1

The substitute part RN73R2ATTD4591F10 maintains identical electrical specifications, mechanical dimensions, and material composition. The primary difference is an increased power rating (0.125W vs. 0.1W) and active product status with automotive AEC-Q200 qualification.

Parameter Comparison

Engineering Selection Recommendations

The RN73R2ATTD4591F10 is a direct functional substitute for the RN732ATTD4591F10 based on identical electrical and mechanical specifications. The substitute part offers the following advantages:

Product Status: The RN73R2ATTD4591F10 is classified as Active, ensuring continued availability and manufacturing support, whereas the RN732ATTD4591F10 is Obsolete.

Power Rating: The substitute part is rated for 0.125W (1/8W) compared to the original 0.1W (1/10W). This higher power rating provides additional thermal margin in applications operating at or near the original component's rated power.

Automotive Qualification: The RN73R2ATTD4591F10 carries AEC-Q200 automotive qualification, indicating compliance with automotive industry reliability and quality standards. This qualification is applicable for designs requiring automotive-grade components.

Compliance: Both parts maintain ROHS3 compliance and Moisture Sensitivity Level 1 (Unlimited), ensuring compatibility with current manufacturing and environmental regulations.

Selection of the RN73R2ATTD4591F10 is appropriate for new designs, production continuity, and replacement applications where the original obsolete part is no longer available.

Frequently Asked Questions (FAQ)

Q: Can the RN73R2ATTD4591F10 be used as a direct replacement for the RN732ATTD4591F10?

A: Yes. Both parts share identical resistance (4.59 kOhms), tolerance (±1%), temperature coefficient (±10ppm/°C), operating temperature range (-55°C to 155°C), package type (0805), physical dimensions, and composition (thin film, moisture resistant). The substitute part is electrically and mechanically compatible.

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

A: The RN732ATTD4591F10 is rated for 0.1W (1/10W), while the RN73R2ATTD4591F10 is rated for 0.125W (1/8W). The higher power rating of the substitute part does not create compatibility issues; it provides additional thermal capacity for the same application.

Q: Are both parts available in the same package?

A: Yes. Both the RN732ATTD4591F10 and RN73R2ATTD4591F10 are supplied in 0805 (2012 Metric) package with identical physical dimensions (0.079" L x 0.049" W, 2.00mm x 1.25mm) and height (0.024" maximum seated height). They are footprint-compatible for PCB assembly.

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

A: AEC-Q200 is an automotive industry standard qualification for passive components. The RN73R2ATTD4591F10 meets this standard, making it suitable for automotive applications. The original RN732ATTD4591F10 does not carry this qualification.

Q: Are there any compliance differences between these parts?

A: No. Both parts are ROHS3 compliant, carry Moisture Sensitivity Level 1 (Unlimited), and are REACH Unaffected. Compliance status is identical.

Q: Why is the original part listed as Obsolete?

A: The RN732ATTD4591F10 is classified as Obsolete by the manufacturer, indicating it is no longer in active production. The RN73R2ATTD4591F10 is the active equivalent that replaces it in the product line.