RN732ATTD1580A05 Equivalent & Substitute Parts

Part Overview

The RN732ATTD1580A05 is a 158 Ohm ±0.05% thin film chip resistor manufactured by KOA Speer Electronics, Inc. in 0805 (2012 Metric) package format with 0.1W power rating. This part is classified as obsolete, necessitating identification of equivalent and substitute components for ongoing production and maintenance applications. The resistor features moisture-resistant construction, ±5ppm/°C temperature coefficient, and operates across -55°C to 155°C temperature range. ROHS3 compliance and MSL 1 rating ensure suitability for standard industrial and commercial applications.

Substiute Parts

RN732ATTD1580A05

KOA Speer Electronics, Inc.In Stock: 1056RN732ATTD1580A05 Datasheet

Current PartRFQ

RN73R2ATTD1580A05

KOA Speer Electronics, Inc.In Stock: 1110RN73R2ATTD1580A05 Datasheet

DirectRFQ

RG2012V-1580-P-T1

SusumuIn Stock: 1153RG2012V-1580-P-T1 Datasheet

UpgradeRFQ

RG2012V-1580-W-T1

SusumuIn Stock: 695RG2012V-1580-W-T1 Datasheet

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RG2012V-1580-W-T5

SusumuIn Stock: 1122RG2012V-1580-W-T5 Datasheet

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TNPU0805158RAZEN00

Vishay DaleIn Stock: 865TNPU0805158RAZEN00 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the RN732ATTD1580A05 is determined by strict adherence to the following electrical and mechanical parameters:

Critical Matching Parameters:

• Resistance value: 158 Ohms (exact match required)
• Package format: 0805 (2012 Metric) (exact match required)
• Composition: Thin Film (exact match required)
• Temperature coefficient: ±5ppm/°C (exact match required)
• Tolerance: ±0.05% or tighter (equal or superior tolerance acceptable)
• Power rating: Equal or greater than 0.1W (upgrades to 0.125W acceptable)
• Operating temperature range: Must encompass or equal -55°C to 155°C minimum
• Moisture resistance: Required feature
• RoHS3 compliance: Required

Substitute Categories:

Direct Equivalent: RN73R2ATTD1580A05 (KOA Speer Electronics, Inc.) — Same manufacturer, identical electrical specifications, upgraded power rating (0.125W), active product status, automotive AEC-Q200 qualified.

Upgraded Equivalents: RG2012V-1580-W-T1, RG2012V-1580-W-T5, RG2012V-1580-P-T1 (Susumu) and TNPU0805158RAZEN00 (Vishay Dale) — All feature enhanced tolerance (0.02% for RG2012V-1580-P-T1), upgraded power rating (0.125W), automotive AEC-Q200 qualification, anti-sulfur construction, and active product status. These parts provide superior performance characteristics within the same package footprint.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement (Same Manufacturer): RN73R2ATTD1580A05 is the primary direct equivalent from KOA Speer Electronics, Inc. This part maintains identical electrical specifications (158 Ohms, ±0.05% tolerance, ±5ppm/°C temperature coefficient) and package format while offering an upgraded power rating (0.125W versus 0.1W). The part is active in production status and carries automotive AEC-Q200 qualification, providing enhanced reliability assurance. This substitution is suitable for applications where KOA Speer component continuity is required.

For Enhanced Performance (Multi-Manufacturer Options): The Susumu RG2012V series (RG2012V-1580-W-T1, RG2012V-1580-W-T5, RG2012V-1580-P-T1) and Vishay Dale TNPU0805158RAZEN00 provide upgraded specifications within the same 0805 package footprint. All four parts feature automotive AEC-Q200 qualification and anti-sulfur construction. The RG2012V-1580-P-T1 offers superior tolerance (±0.02% versus ±0.05%), while RG2012V-1580-W-T1 and RG2012V-1580-W-T5 maintain ±0.05% tolerance matching the original specification. TNPU0805158RAZEN00 combines anti-sulfur and moisture-resistant features with AEC-Q200 qualification. All substitute parts are active in production and ROHS3 compliant.

Temperature Range Consideration: TNPU0805158RAZEN00 operates to 125°C maximum, which is 30°C below the original part's 155°C upper limit. This part is suitable only for applications where the operating temperature does not exceed 125°C.

Frequently Asked Questions (FAQ)

Q: Can RN73R2ATTD1580A05 be used as a direct replacement for RN732ATTD1580A05?

A: Yes. RN73R2ATTD1580A05 is a direct equivalent with identical resistance (158 Ohms), tolerance (±0.05%), temperature coefficient (±5ppm/°C), and package format (0805). The upgraded power rating (0.125W versus 0.1W) is compatible with applications designed for the original 0.1W part. Both parts feature moisture-resistant thin film construction and operate across -55°C to 155°C.

Q: What is the difference between the Susumu RG2012V variants?

A: RG2012V-1580-P-T1 features ±0.02% tolerance, providing superior accuracy compared to RG2012V-1580-W-T1 and RG2012V-1580-W-T5, which maintain ±0.05% tolerance. All three parts share identical resistance (158 Ohms), power rating (0.125W), package format (0805), temperature coefficient (±5ppm/°C), and operating range (-55°C to 155°C). The -T1 and -T5 designations indicate different tape configurations; both are functionally equivalent for component selection purposes.

Q: Are all substitute parts automotive-qualified?

A: Yes. RN73R2ATTD1580A05, RG2012V-1580-W-T1, RG2012V-1580-W-T5, RG2012V-1580-P-T1, and TNPU0805158RAZEN00 all carry automotive AEC-Q200 qualification. The original RN732ATTD1580A05 does not have AEC-Q200 certification.

Q: What is the significance of anti-sulfur construction in the Susumu and Vishay Dale parts?

A: Anti-sulfur construction protects the resistor from sulfur-containing environmental contaminants that can degrade performance in industrial and automotive applications. This feature is present in RG2012V series and TNPU0805158RAZEN00 but not in the original RN732ATTD1580A05 or RN73R2ATTD1580A05.

Q: Can TNPU0805158RAZEN00 be used in applications requiring 155°C operation?

A: No. TNPU0805158RAZEN00 operates to a maximum of 125°C, which is 30°C below the original part's 155°C upper limit. This part is suitable only for applications where the maximum operating temperature does not exceed 125°C. For applications requiring 155°C operation, use RN73R2ATTD1580A05, RG2012V-1580-W-T1, RG2012V-1580-W-T5, or RG2012V-1580-P-T1.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. All substitute parts listed (RN73R2ATTD1580A05, RG2012V-1580-W-T1, RG2012V-1580-W-T5, RG2012V-1580-P-T1, and TNPU0805158RAZEN00) are ROHS3 compliant with MSL 1 (Unlimited) moisture sensitivity rating, matching the original RN732ATTD1580A05.

Q: What is the physical height difference between substitute parts?

A: RN732ATTD1580A05 has a maximum seated height of 0.024" (0.60mm). RG2012V series parts have a maximum seated height of 0.020" (0.50mm), and TNPU0805158RAZEN00 has a maximum seated height of 0.022" (0.55mm). All parts fit within standard 0805 package specifications and are mechanically compatible with existing PCB layouts.

Q: Which substitute part offers the best tolerance specification?

A: RG2012V-1580-P-T1 offers ±0.02% tolerance, which is superior to the original RN732ATTD1580A05 specification of ±0.05%. This enhanced tolerance provides tighter resistance accuracy for precision circuit applications.