RN732ATTD4172A10 Equivalent & Substitute Parts

Part Overview

The RN732ATTD4172A10 is a 41.7 kOhms ±0.05% thin film chip resistor manufactured by KOA Speer Electronics, Inc., rated at 0.1W (1/10W) in 0805 (2012 Metric) surface mount package. This component features moisture-resistant construction with a temperature coefficient of ±10ppm/°C and operates across -55°C to 155°C. The part is currently classified as obsolete. 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

RN732ATTD4172A10

KOA Speer Electronics, Inc.In Stock: 937RN732ATTD4172A10 Datasheet

Current PartRFQ

RN73R2ATTD4172A10

KOA Speer Electronics, Inc.In Stock: 860RN73R2ATTD4172A10 Datasheet

DirectRFQ

PLTT0805Z4172AGT5

Vishay Dale Thin FilmIn Stock: 758PLTT0805Z4172AGT5 Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RN732ATTD4172A10 are qualified based on the following criteria:

Core Electrical Parameters (Non-Negotiable):

• Resistance value: 41.7 kOhms
• Tolerance: ±0.05%
• Composition: Thin Film
• Package: 0805 (2012 Metric)

Allowable Variations:

• Power rating may be equal to or greater than 0.1W
• Temperature coefficient may be equal to or lower (tighter tolerance acceptable)
• Operating temperature range may be equal to or extended
• Additional features (automotive qualification, enhanced corrosion resistance) are permissible
• Product status may transition from obsolete to active

Compliance Requirements:

• RoHS3 compliance maintained
• MSL rating of 1 (Unlimited) maintained or improved

Two substitute parts meet these criteria:

1. RN73R2ATTD4172A10 (Direct Substitute): Same electrical specifications with automotive AEC-Q200 qualification and active product status. Power rating increased to 0.125W (1/8W).

2. PLTT0805Z4172AGT5 (Upgrade Substitute): Enhanced performance variant with 0.25W (1/4W) power rating, improved temperature coefficient (±5ppm/°C), extended operating temperature to 215°C, and additional safety features.

Parameter Comparison

Engineering Selection Recommendations

RN73R2ATTD4172A10 (Direct Substitute): Select this part for direct replacement in applications where the RN732ATTD4172A10 is currently specified. This substitute maintains identical electrical performance (41.7 kOhms ±0.05%, ±10ppm/°C) and mechanical compatibility (0805 package). The increased power rating (0.125W vs. 0.1W) provides additional thermal margin without affecting circuit behavior. Active product status ensures long-term supply availability. Automotive AEC-Q200 qualification adds reliability assurance for demanding environments. ROHS3 compliance and MSL 1 rating are maintained.

PLTT0805Z4172AGT5 (Upgrade Substitute): Select this part for applications requiring enhanced performance specifications or extended operating temperature range. The 0.25W power rating provides significant thermal headroom for high-dissipation circuits. The improved temperature coefficient (±5ppm/°C vs. ±10ppm/°C) delivers superior frequency stability and precision in temperature-sensitive applications. Extended operating temperature to 215°C supports high-temperature industrial and automotive environments. Anti-corrosive and flame-proof features provide additional environmental protection. Active product status and ROHS3 compliance are confirmed. Physical dimensions remain compatible with 0805 footprints.

Both substitutes are qualified for direct PCB footprint compatibility and electrical circuit substitution without design modification.

Frequently Asked Questions (FAQ)

Q: Can RN73R2ATTD4172A10 be used as a direct replacement for RN732ATTD4172A10?

A: Yes. Both parts share identical resistance (41.7 kOhms), tolerance (±0.05%), composition (thin film), package (0805), temperature coefficient (±10ppm/°C), and operating temperature range (-55°C ~ 155°C). The RN73R2ATTD4172A10 features a higher power rating (0.125W vs. 0.1W), which is acceptable for direct substitution. No circuit redesign is required.

Q: What is the primary advantage of PLTT0805Z4172AGT5 over the original part?

A: The PLTT0805Z4172AGT5 offers three key advantages: (1) doubled power rating (0.25W vs. 0.1W) for improved thermal performance, (2) superior temperature coefficient (±5ppm/°C vs. ±10ppm/°C) for enhanced frequency stability, and (3) extended operating temperature range (-55°C ~ 215°C vs. -55°C ~ 155°C). These enhancements support high-temperature and high-precision applications.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. RN732ATTD4172A10, RN73R2ATTD4172A10, and PLTT0805Z4172AGT5 are all ROHS3 compliant with MSL rating 1 (Unlimited), ensuring compatibility with modern manufacturing and environmental regulations.

Q: Does the RN73R2ATTD4172A10 include automotive qualification?

A: Yes. RN73R2ATTD4172A10 carries AEC-Q200 automotive qualification, making it suitable for automotive and high-reliability applications. The original RN732ATTD4172A10 does not include this certification.

Q: Can PLTT0805Z4172AGT5 be used in place of RN732ATTD4172A10 without PCB modification?

A: Yes. PLTT0805Z4172AGT5 maintains 0805 (2012 Metric) package compatibility with identical footprint dimensions. No PCB layout changes are required. The part is electrically and mechanically interchangeable.

Q: Why is the original RN732ATTD4172A10 classified as obsolete?

A: Product obsolescence reflects manufacturer discontinuation. Active substitute parts (RN73R2ATTD4172A10 and PLTT0805Z4172AGT5) ensure continued availability and supply chain stability for this resistance value and specification.

Q: What is the difference in physical dimensions between the main part and substitutes?

A: RN732ATTD4172A10 and RN73R2ATTD4172A10 share identical dimensions (0.079" L x 0.049" W, height 0.024" max). PLTT0805Z4172AGT5 has marginally larger dimensions (0.080" L x 0.050" W, height 0.033" max) due to enhanced construction, but remains within standard 0805 package tolerance and PCB footprint compatibility.