RN732ATTD4020A05 Equivalent & Substitute Parts

Part Overview

The RN732ATTD4020A05 is a 402 Ohm ±0.05% thin film chip resistor manufactured by KOA Speer Electronics, Inc., rated at 0.1W (1/10W) in 0805 (2012 Metric) package. This part is classified as Obsolete, necessitating identification of equivalent and substitute components for ongoing design support and procurement. The resistor features moisture-resistant construction with ±5ppm/°C temperature coefficient and operates across -55°C to 155°C. Active substitute parts with identical or enhanced specifications are available from multiple manufacturers including Vishay Dale and Susumu.

Substiute Parts

RN732ATTD4020A05

KOA Speer Electronics, Inc.In Stock: 767RN732ATTD4020A05 Datasheet

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RN73R2ATTD4020A05

KOA Speer Electronics, Inc.In Stock: 1082RN73R2ATTD4020A05 Datasheet

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PLT0805Z4020LBTS

Vishay Dale Thin FilmIn Stock: 788PLT0805Z4020LBTS Datasheet

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PLTT0805Z4020AGT5

Vishay Dale Thin FilmIn Stock: 1006PLTT0805Z4020AGT5 Datasheet

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PLTT0805Z4020QGT5

Vishay Dale Thin FilmIn Stock: 1139PLTT0805Z4020QGT5 Datasheet

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RG2012V-4020-P-T1

SusumuIn Stock: 1157RG2012V-4020-P-T1 Datasheet

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RG2012V-4020-W-T1

SusumuIn Stock: 1100RG2012V-4020-W-T1 Datasheet

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RG2012V-4020-W-T5

SusumuIn Stock: 954RG2012V-4020-W-T5 Datasheet

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TNPU0805402RAZEN00

Vishay DaleIn Stock: 1048TNPU0805402RAZEN00 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the RN732ATTD4020A05 is determined by strict adherence to the following electrical and mechanical parameters:

Critical Parameters (Must Match):

• Resistance value: 402 Ohms
• Package / Case: 0805 (2012 Metric)
• Composition: Thin Film
• Temperature Coefficient: ±5ppm/°C
• Moisture Sensitivity Level: 1 (Unlimited)

Allowable Variations:

• Tolerance: Equal to or tighter than ±0.05%
• Power Rating: Equal to or greater than 0.1W
• Operating Temperature Range: Must encompass or extend the -55°C to 155°C range
• Product Status: Active preferred over Obsolete
• RoHS Compliance: ROHS3 Compliant preferred

All substitute parts listed maintain identical resistance, package, composition, and temperature coefficient specifications. Substitutes are grouped by power rating and tolerance enhancements, with all parts meeting or exceeding the original specifications.

Parameter Comparison

Engineering Selection Recommendations

Direct Replacement (Same Power Rating): RN73R2ATTD4020A05 from KOA Speer Electronics is the primary direct substitute. It maintains identical electrical specifications (402 Ω, ±0.05% tolerance, ±5ppm/°C) with increased power rating (0.125W vs. 0.1W) and Active product status. This part includes Automotive AEC-Q200 qualification and ROHS3 compliance, providing enhanced reliability for production environments.

Susumu RG Series Substitutes: RG2012V-4020-W-T5, RG2012V-4020-W-T1, and RG2012V-4020-P-T1 are Active alternatives with 0.125W power rating. All three maintain ±5ppm/°C temperature coefficient and -55°C to 155°C operating range. RG2012V-4020-P-T1 offers tighter tolerance (±0.02%) with identical power and temperature specifications. All RG series parts include Automotive AEC-Q200 qualification and Anti-Sulfur features with ROHS3 compliance.

Vishay Dale TNPU Series: TNPU0805402RAZEN00 provides 0.125W power rating with ±0.05% tolerance matching the original specification. Operating temperature range is -55°C to 125°C (reduced upper limit compared to original). Includes Automotive AEC-Q200 qualification, Anti-Sulfur and Moisture Resistant features, with ROHS3 compliance.

Vishay Dale PLTT Series (Enhanced Specifications): PLTT0805Z4020AGT5 and PLTT0805Z4020QGT5 offer 0.25W power rating with extended operating temperature to 215°C. PLTT0805Z4020AGT5 maintains ±0.05% tolerance; PLTT0805Z4020QGT5 provides tighter ±0.02% tolerance. Both include Anti-Corrosive, Flame Proof, and Moisture Resistant features with ROHS3 compliance.

Vishay Dale PLT Series (Highest Tolerance Precision): PLT0805Z4020LBTS delivers ±0.01% tolerance (tightest available) with 0.25W power rating and -55°C to 125°C operating range. Note: This part is RoHS non-compliant and should be selected only when RoHS3 compliance is not a design requirement.

Selection Criteria:

• For direct replacement in existing designs: RN73R2ATTD4020A05
• For automotive applications: RG2012V series or TNPU0805402RAZEN00
• For high-precision applications: PLTT0805Z4020QGT5 or PLT0805Z4020LBTS
• For extended temperature range: PLTT0805Z4020AGT5 or PLTT0805Z4020QGT5

Frequently Asked Questions (FAQ)

Q: Can RN73R2ATTD4020A05 directly replace RN732ATTD4020A05? A: Yes. Both parts share identical resistance (402 Ω), tolerance (±0.05%), package (0805), composition (Thin Film), and temperature coefficient (±5ppm/°C). RN73R2ATTD4020A05 has higher power rating (0.125W vs. 0.1W) and Active product status, making it a suitable direct replacement.

Q: What is the difference between RG2012V-4020-W-T5 and RG2012V-4020-W-T1? A: Both parts are electrically identical (402 Ω, ±0.05%, 0.125W, ±5ppm/°C, 0805 package). The designation suffix (T5 vs. T1) indicates different tape packaging specifications. Both are Active with Automotive AEC-Q200 qualification and ROHS3 compliance.

Q: Why do some substitutes have higher power ratings? A: Higher power ratings (0.125W or 0.25W) provide design margin and thermal headroom. A 0.1W-rated circuit can operate with 0.125W or 0.25W components without performance degradation. This is an allowable substitution parameter.

Q: Can PLTT0805Z4020QGT5 be used instead of RN732ATTD4020A05? A: Yes, with design considerations. PLTT0805Z4020QGT5 maintains 402 Ω resistance, ±5ppm/°C temperature coefficient, and 0805 package. It offers tighter tolerance (±0.02% vs. ±0.05%), higher power rating (0.25W vs. 0.1W), and extended temperature range (-55°C to 215°C vs. -55°C to 155°C). All parameters are equal to or exceed original specifications.

Q: Is PLT0805Z4020LBTS compatible with RoHS3 requirements? A: No. PLT0805Z4020LBTS is RoHS non-compliant. Use this part only in applications where RoHS3 compliance is not mandated. For RoHS3-compliant designs, select from ROHS3-compliant alternatives listed in this reference.

Q: What does Automotive AEC-Q200 qualification mean? A: AEC-Q200 is an automotive industry standard qualification for passive components. Parts with this rating have undergone rigorous testing for reliability in automotive environments. RN73R2ATTD4020A05, RG series, and TNPU0805402RAZEN00 include this qualification.

Q: Can I use PLTT0805Z4020AGT5 in a circuit designed for 0.1W power dissipation? A: Yes. PLTT0805Z4020AGT5 is rated for 0.25W, which exceeds the 0.1W requirement. The higher power rating provides thermal margin and does not affect circuit performance. All other electrical parameters (resistance, tolerance, temperature coefficient) are compatible.

Q: What is the significance of ±5ppm/°C temperature coefficient? A: Temperature coefficient indicates resistance change per degree Celsius. ±5ppm/°C means the resistance value changes by ±5 parts per million for each 1°C temperature change. All listed substitutes maintain this specification, ensuring thermal stability equivalent to the original part.

Q: Are there dimensional differences between substitute parts? A: Minor dimensional variations exist. Original RN732ATTD4020A05 has height 0.024" (0.60mm). Susumu RG series has height 0.020" (0.50mm). Vishay PLTT and PLT series have height 0.033" (0.84mm). All fit 0805 package footprints; verify PCB assembly equipment compatibility for height-sensitive applications.

Q: Which substitute offers the best overall compatibility? A: RN73R2ATTD4020A05 provides the closest match with identical electrical specifications, same manufacturer (KOA Speer), Active status, and ROHS3 compliance. For automotive applications, RG2012V-4020-W-T5 or RG2012V-4020-W-T1 are preferred due to AEC-Q200 qualification.