RN732ATTD4073B50 Equivalent & Substitute Parts

Part Overview

The RN732ATTD4073B50 is a 407 kOhms ±0.1% thin film chip resistor rated at 0.1W (1/10W) in 0805 (2012 Metric) surface mount package. This component is manufactured by KOA Speer Electronics, Inc. and features moisture-resistant construction with a temperature coefficient of ±50ppm/°C across an operating range of -55°C to 155°C.

The RN732ATTD4073B50 carries an Obsolete product status. Identifying equivalent and 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

RN732ATTD4073B50

KOA Speer Electronics, Inc.In Stock: 843RN732ATTD4073B50 Datasheet

Current PartRFQ

RN73R2ATTD4073B50

KOA Speer Electronics, Inc.In Stock: 1203RN73R2ATTD4073B50 Datasheet

DirectRFQ

PHP00805E4073BBT1

Vishay Dale Thin FilmIn Stock: 982PHP00805E4073BBT1 Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RN732ATTD4073B50 are qualified based on the following criteria:

Mandatory Matching Parameters:

• Resistance value: 407 kOhms
• Tolerance: ±0.1%
• Package / Case: 0805 (2012 Metric)
• Composition: Thin Film
• Operating Temperature Range: -55°C to 155°C
• Moisture Sensitivity Level: 1 (Unlimited)

Allowable Variation Parameters:

• Power Rating: Equal to or greater than 0.1W
• Temperature Coefficient: Equal to or lower absolute value (±50ppm/°C or better)
• RoHS Compliance: Maintained or equivalent regulatory status
• Certifications: Additional certifications (such as AEC-Q200 or Flame Proof) do not disqualify substitution

Two substitute parts meet these criteria and are presented in order of direct compatibility and upgrade capability.

Parameter Comparison

Engineering Selection Recommendations

RN73R2ATTD4073B50 (Direct Substitute - Recommended for Standard Applications)

The RN73R2ATTD4073B50 is the primary substitute for the obsolete RN732ATTD4073B50. This part maintains identical electrical specifications (407 kOhms, ±0.1% tolerance, ±50ppm/°C temperature coefficient) and package geometry. The power rating increase from 0.1W to 0.125W provides enhanced thermal margin without affecting circuit performance. The RN73R2ATTD4073B50 carries Active product status and ROHS3 compliance, ensuring long-term availability and regulatory alignment. The addition of AEC-Q200 automotive qualification provides enhanced reliability documentation suitable for demanding applications.

PHP00805E4073BBT1 (Upgrade Substitute - For Enhanced Performance Requirements)

The PHP00805E4073BBT1 represents an upgrade option offering superior temperature stability (±25ppm/°C versus ±50ppm/°C) and significantly higher power dissipation capability (0.63W versus 0.1W). This Vishay Dale component is suitable for applications requiring tighter tolerance performance or higher thermal headroom. The Flame Proof and Safety certifications indicate enhanced construction standards. Note that this part carries RoHS Non-Compliant status and REACH Affected designation, requiring regulatory assessment before implementation in new designs subject to these compliance frameworks.

Frequently Asked Questions (FAQ)

Q: Can the RN73R2ATTD4073B50 be used as a direct replacement for the RN732ATTD4073B50?

A: Yes. The RN73R2ATTD4073B50 maintains identical resistance (407 kOhms), tolerance (±0.1%), package (0805), composition (thin film), and operating temperature range (-55°C to 155°C). The increased power rating (0.125W versus 0.1W) is compatible with all applications designed for the original part. The RN73R2ATTD4073B50 is currently in Active production status, ensuring supply availability.

Q: What is the difference between the RN73R2ATTD4073B50 and PHP00805E4073BBT1?

A: Both parts share the same resistance value, tolerance, and package. The PHP00805E4073BBT1 offers improved temperature coefficient (±25ppm/°C versus ±50ppm/°C) and higher power rating (0.63W versus 0.125W). The PHP00805E4073BBT1 includes Flame Proof and Safety certifications but is RoHS Non-Compliant, whereas the RN73R2ATTD4073B50 is ROHS3 Compliant.

Q: Are there any physical dimension differences between these parts?

A: All three parts use the 0805 (2012 Metric) package. The RN732ATTD4073B50 and RN73R2ATTD4073B50 have identical dimensions (0.079" L x 0.049" W, height 0.024" max). The PHP00805E4073BBT1 has marginally larger dimensions (0.080" L x 0.050" W, height 0.033" max) due to enhanced construction. These differences remain within standard 0805 package tolerances and do not affect PCB layout compatibility.

Q: Which substitute should be selected for RoHS-compliant applications?

A: The RN73R2ATTD4073B50 is ROHS3 Compliant and is the appropriate selection for applications requiring RoHS compliance. The PHP00805E4073BBT1 is RoHS Non-Compliant and is unsuitable for designs subject to RoHS regulatory requirements.

Q: Can the PHP00805E4073BBT1 be used in automotive applications?

A: The PHP00805E4073BBT1 does not carry AEC-Q200 automotive qualification. The RN73R2ATTD4073B50 includes AEC-Q200 certification and is the appropriate selection for automotive applications requiring this qualification standard.

Q: What is the significance of the Moisture Sensitivity Level (MSL) rating of 1?

A: MSL 1 (Unlimited) indicates that these components have no moisture sensitivity restrictions. They do not require special moisture-controlled storage, handling, or reflow procedures, simplifying supply chain management and manufacturing processes.