RN732ATTD3570B05 Equivalent & Substitute Parts

Part Overview

The RN732ATTD3570B05 is a 357 Ohm ±0.1% thin film chip resistor manufactured by KOA Speer Electronics, Inc., rated at 0.1W (1/10W) in 0805 (2012 Metric) package format. This component features moisture-resistant construction with a temperature coefficient of ±5ppm/°C and operates across -55°C to 155°C. The part is classified as obsolete, necessitating identification of active equivalent and substitute components that maintain functional compatibility while offering enhanced specifications or improved availability.

Substiute Parts

RN732ATTD3570B05

KOA Speer Electronics, Inc.In Stock: 768RN732ATTD3570B05 Datasheet

Current PartRFQ

RN73R2ATTD3570B05

KOA Speer Electronics, Inc.In Stock: 831RN73R2ATTD3570B05 Datasheet

DirectRFQ

PLT0805Z3570LBTS

Vishay Dale Thin FilmIn Stock: 793PLT0805Z3570LBTS Datasheet

UpgradeRFQ

PLTT0805Z3570AGT5

Vishay Dale Thin FilmIn Stock: 945PLTT0805Z3570AGT5 Datasheet

UpgradeRFQ

PLTT0805Z3570QGT5

Vishay Dale Thin FilmIn Stock: 896PLTT0805Z3570QGT5 Datasheet

UpgradeRFQ

RG2012V-3570-B-T5

SusumuIn Stock: 1176RG2012V-3570-B-T5 Datasheet

UpgradeRFQ

RG2012V-3570-P-T1

SusumuIn Stock: 980RG2012V-3570-P-T1 Datasheet

UpgradeRFQ

RG2012V-3570-W-T1

SusumuIn Stock: 1221RG2012V-3570-W-T1 Datasheet

UpgradeRFQ

RG2012V-3570-W-T5

SusumuIn Stock: 1080RG2012V-3570-W-T5 Datasheet

UpgradeRFQ

TNPU0805357RAZEN00

Vishay DaleIn Stock: 741TNPU0805357RAZEN00 Datasheet

UpgradeRFQ

TNPU0805357RBZEN00

Vishay DaleIn Stock: 1089TNPU0805357RBZEN00 Datasheet

UpgradeRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RN732ATTD3570B05 is determined by strict adherence to the following electrical and mechanical parameters:

Primary Compatibility Criteria:

• Resistance value: 357 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)
• Moisture Sensitivity Level: 1 (Unlimited) (exact match required)

Allowable Variation Parameters:

• Tolerance: May be equal to or tighter than ±0.1%
• Power rating: May be equal to or greater than 0.1W
• Operating temperature range: May be equal to or wider than -55°C ~ 155°C
• Features: May include additional protective characteristics (automotive qualification, anti-corrosive, anti-sulfur properties)
• RoHS compliance: May be ROHS3 Compliant or equivalent

Substitute parts are grouped into two categories: direct equivalents (matching power rating and tolerance) and upgraded alternatives (enhanced power rating and/or tighter tolerance specifications).

Parameter Comparison

Engineering Selection Recommendations

Direct Equivalent (Recommended Primary Substitute):

RN73R2ATTD3570B05 (KOA Speer Electronics) is the primary recommended substitute. This part maintains identical electrical specifications (357 Ohms ±0.1%, ±5ppm/°C temperature coefficient) and package format (0805) while offering increased power rating (0.125W vs. 0.1W). The component is active in production, ROHS3 compliant, and includes automotive AEC-Q200 qualification, providing enhanced reliability for demanding applications. Operating temperature range remains -55°C to 155°C.

Secondary Equivalents (Automotive-Qualified Alternatives):

RG2012V-3570-B-T5 (Susumu) provides identical tolerance (±0.1%) and power rating (0.125W) with automotive AEC-Q200 qualification and anti-sulfur protection. This part is active and ROHS3 compliant with the same operating temperature range.

TNPU0805357RBZEN00 (Vishay Dale) matches the tolerance specification (±0.1%) and power rating (0.125W) with automotive AEC-Q200 qualification, anti-sulfur and moisture-resistant features. This part is active and ROHS3 compliant. Operating temperature range is -55°C to 125°C, which is narrower than the original specification.

Upgraded Alternatives (Enhanced Specifications):

RG2012V-3570-P-T1 and RG2012V-3570-W-T1/W-T5 (Susumu) offer tighter tolerance specifications (±0.02% and ±0.05% respectively) with automotive AEC-Q200 qualification and anti-sulfur protection. These parts are active, ROHS3 compliant, and maintain the full operating temperature range (-55°C to 155°C).

PLTT0805Z3570AGT5 and PLTT0805Z3570QGT5 (Vishay Dale) provide significantly enhanced power rating (0.25W) with tighter tolerances (±0.05% and ±0.02% respectively) and extended operating temperature range (-55°C to 215°C). These parts include anti-corrosive, flame-proof, and safety features. ROHS3 compliance is confirmed for both variants.

PLT0805Z3570LBTS (Vishay Dale) offers the tightest tolerance (±0.01%) and highest power rating (0.25W) with comprehensive protective features. This part is not ROHS3 compliant and should be selected only when RoHS non-compliance is acceptable for the application.

Frequently Asked Questions (FAQ)

Q: Can RN732ATTD3570B05 be directly replaced with RN73R2ATTD3570B05?

A: Yes. Both parts share identical resistance (357 Ohms), tolerance (±0.1%), package (0805), temperature coefficient (±5ppm/°C), and operating range (-55°C to 155°C). RN73R2ATTD3570B05 provides higher power rating (0.125W vs. 0.1W), making it a direct functional upgrade. The component is active in production and ROHS3 compliant.

Q: What is the difference between tolerance specifications in the substitute parts?

A: Tolerance defines the acceptable deviation from the nominal 357 Ohm resistance value. The original part specifies ±0.1% (±0.357 Ohms). Tighter tolerances such as ±0.05%, ±0.02%, and ±0.01% provide greater precision. Selection depends on circuit requirements; applications requiring tighter tolerance control should specify parts with ±0.05% or better.

Q: Are all substitute parts automotive-qualified?

A: No. KOA Speer RN73R2ATTD3570B05, Susumu RG2012V series, and Vishay Dale TNPU series carry AEC-Q200 automotive qualification. Vishay Dale PLT and PLTT series are not explicitly listed with automotive qualification in the provided specifications. Automotive applications should specify AEC-Q200 qualified parts.

Q: What is the significance of the extended operating temperature range in PLTT series?

A: PLTT0805Z3570AGT5 and PLTT0805Z3570QGT5 operate from -55°C to 215°C, compared to the original part's -55°C to 155°C range. This extended range accommodates high-temperature applications. Selection should match the actual operating environment requirements.

Q: Can parts with different power ratings be interchanged?

A: Yes, provided the circuit design allows. A higher power-rated component (0.125W or 0.25W) can replace a lower-rated part (0.1W) without functional degradation. The reverse substitution (lower power rating for higher requirement) is not acceptable and may result in component failure or thermal damage.

Q: What does ROHS3 compliance mean for component selection?

A: ROHS3 compliance indicates the component meets Restriction of Hazardous Substances Directive requirements, restricting lead and other hazardous materials. For applications subject to ROHS regulations, only ROHS3 compliant parts should be selected. PLT0805Z3570LBTS is not ROHS3 compliant and should be avoided in regulated applications.

Q: Are there physical size differences between substitute parts?

A: All parts maintain the 0805 (2012 Metric) package format. However, height specifications vary slightly: RN732ATTD3570B05 and most substitutes have maximum seated height of 0.024" (0.60mm), while Susumu RG2012V series specifies 0.020" (0.50mm), and Vishay Dale PLT/PLTT series specify 0.033" (0.84mm). Verify PCB layout clearance requirements before final selection.

Q: Which substitute part offers the best overall performance upgrade?

A: PLTT0805Z3570QGT5 provides the most comprehensive upgrade: ±0.02% tolerance (tightest available), 0.25W power rating (2.5× original), extended temperature range (-55°C to 215°C), and comprehensive protective features (anti-corrosive, flame-proof, moisture-resistant, safety-rated). This part is ROHS3 compliant and active in production. Selection should confirm application requirements justify the enhanced specifications.