RN732ATTD2000D50 Equivalent & Substitute Parts

Part Overview

The RN732ATTD2000D50 is a 200 Ohm ±0.5% 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 ±50ppm/°C and operates across -55°C to 155°C. The part is currently listed as obsolete, necessitating identification of equivalent and substitute components for ongoing design requirements and production continuity.

Key Parameters

Parameter	Value
Resistance	200 Ohms
Tolerance	±0.5%
Power Rating	0.1W (1/10W)
Package	0805 (2012 Metric)
Composition	Thin Film
Temperature Coefficient	±50ppm/°C
Operating Temperature Range	-55°C ~ 155°C
Moisture Sensitivity Level	1 (Unlimited)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the RN732ATTD2000D50 is determined by the following critical parameters:

Primary Compatibility Criteria:

Resistance value: 200 Ohms (exact match required)
Package format: 0805 (2012 Metric) (exact match required)
Composition: Thin Film (exact match required)
Tolerance: ±0.5% or tighter (±0.1% acceptable as upgrade)
Temperature coefficient: ±50ppm/°C or better (lower values acceptable)
Operating temperature range: Must support -55°C ~ 155°C minimum
Moisture Sensitivity Level: 1 (Unlimited) or equivalent

Power Rating Consideration: The original part is rated at 0.1W (1/10W). Substitute parts with equal or higher power ratings (0.125W, 0.25W) are functionally compatible, as higher power ratings provide additional thermal margin without affecting electrical performance at the original operating point.

Substitution Categories:

Direct Substitutes (Same Tolerance ±0.5%):

RN73R2ATTD2000D50 (KOA Speer, 0.125W, Active status)
RNCF0805DKC200R (Stackpole, 0.25W, Active status)
RNCF0805DTC200R (Stackpole, 0.25W, Active status)
MCU08050D2000DP500 (Vishay, 0.125W, Active status)
RG2012N-201-D-T5 (Susumu, 0.125W, Active status)

Upgrade Substitutes (Tighter Tolerance ±0.1%):

CPF0805B200RE1 (TE Connectivity, 0.1W, ±0.1% tolerance, ±25ppm/°C)
ERA-6AEB201V (Panasonic, 0.125W, ±0.1% tolerance, ±25ppm/°C, AEC-Q200)
MCU08050D2000BP100 (Vishay, 0.125W, ±0.1% tolerance, ±25ppm/°C)
MCU08050D2000BP500 (Vishay, 0.125W, ±0.1% tolerance, ±25ppm/°C)
RG2012N-201-B-T5 (Susumu, 0.125W, ±0.1% tolerance, ±10ppm/°C, AEC-Q200)

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Temp Range (°C)	Status	AEC-Q200
RN732ATTD2000D50	KOA Speer	200Ω	±0.5%	0.1	±50	-55 ~ 155	Obsolete	No
RN73R2ATTD2000D50	KOA Speer	200Ω	±0.5%	0.125	±50	-55 ~ 155	Active	Yes
RNCF0805DKC200R	Stackpole	200Ω	±0.5%	0.25	±50	-55 ~ 155	Active	Yes
RNCF0805DTC200R	Stackpole	200Ω	±0.5%	0.25	±50	-55 ~ 155	Active	Yes
CPF0805B200RE1	TE Connectivity	200Ω	±0.1%	0.1	±25	-55 ~ 155	Active	No
ERA-6AEB201V	Panasonic	200Ω	±0.1%	0.125	±25	-55 ~ 155	Active	Yes
MCU08050D2000BP100	Vishay	200Ω	±0.1%	0.125	±25	-55 ~ 125	Active	No
MCU08050D2000BP500	Vishay	200Ω	±0.1%	0.125	±25	-55 ~ 125	Active	No
MCU08050D2000DP500	Vishay	200Ω	±0.5%	0.125	±25	-55 ~ 155	Active	No
RG2012N-201-B-T5	Susumu	200Ω	±0.1%	0.125	±10	-55 ~ 155	Active	Yes
RG2012N-201-D-T5	Susumu	200Ω	±0.5%	0.125	±10	-55 ~ 155	Active	Yes

Engineering Selection Recommendations

For Direct Replacement (Matching ±0.5% Tolerance):

RN73R2ATTD2000D50 is the primary direct substitute, offering identical electrical specifications with active product status and AEC-Q200 automotive qualification. This part maintains the same tolerance and temperature coefficient while providing increased power rating (0.125W vs. 0.1W) and moisture resistance.

RNCF0805DKC200R and RNCF0805DTC200R (Stackpole) provide equivalent performance with higher power ratings (0.25W) and AEC-Q200 certification. These parts are suitable for applications requiring automotive-grade reliability.

MCU08050D2000DP500 (Vishay) offers ±0.5% tolerance matching with anti-sulfur construction and full temperature range support (-55°C ~ 155°C). This part is recommended for environments with corrosive atmospheres.

RG2012N-201-D-T5 (Susumu) provides ±0.5% tolerance with superior temperature coefficient (±10ppm/°C vs. ±50ppm/°C) and AEC-Q200 certification, suitable for precision applications requiring automotive qualification.

For Upgraded Performance (±0.1% Tolerance):

ERA-6AEB201V (Panasonic) is recommended for applications requiring tighter tolerance control. This part combines ±0.1% tolerance, improved temperature coefficient (±25ppm/°C), AEC-Q200 certification, and full temperature range support.

RG2012N-201-B-T5 (Susumu) offers the most stringent specifications with ±0.1% tolerance, ±10ppm/°C temperature coefficient, and AEC-Q200 automotive qualification. This part is optimal for precision measurement and signal conditioning circuits.

CPF0805B200RE1 (TE Connectivity) provides ±0.1% tolerance with matching 0.1W power rating and ±25ppm/°C temperature coefficient. This part is suitable for applications where power rating must remain unchanged.

For Temperature-Limited Applications:

MCU08050D2000BP100 and MCU08050D2000BP500 (Vishay) are suitable only for applications with maximum operating temperature of 125°C. These parts feature anti-sulfur construction and ±0.1% tolerance but do not support the full -55°C ~ 155°C range of the original part.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with higher power rating than the original 0.1W specification?

A: Yes. Substitute parts rated at 0.125W or 0.25W are functionally compatible. Higher power ratings provide additional thermal margin and do not affect electrical performance when operating at the original power level. The component will operate safely within its rated power envelope.

Q: What is the difference between direct substitutes and upgrade substitutes?

A: Direct substitutes maintain the original ±0.5% tolerance specification. Upgrade substitutes feature tighter ±0.1% tolerance, lower temperature coefficients, and often include automotive AEC-Q200 certification. Upgrade substitutes provide improved accuracy and stability but may have different pricing and lead times.

Q: Are all substitute parts compatible with the 0805 package footprint?

A: Yes. All listed substitute parts use the 0805 (2012 Metric) package format with identical land pattern dimensions (0.079" L x 0.049" W / 2.00mm x 1.25mm). Physical compatibility is confirmed across all substitutes.

Q: Which substitute should I select for automotive applications?

A: For automotive applications, select parts with AEC-Q200 certification: RN73R2ATTD2000D50, RNCF0805DKC200R, RNCF0805DTC200R, ERA-6AEB201V, RG2012N-201-B-T5, or RG2012N-201-D-T5. These parts meet automotive reliability and qualification standards.

Q: Does the temperature coefficient difference affect circuit performance?

A: Temperature coefficient affects resistance stability across temperature variations. The original part specifies ±50ppm/°C. Substitute parts with lower coefficients (±25ppm/°C or ±10ppm/°C) provide improved stability. For applications sensitive to resistance drift, select substitutes with lower temperature coefficients.

Q: Can I use MCU08050D2000BP100 if my circuit operates above 125°C?

A: No. MCU08050D2000BP100 and MCU08050D2000BP500 are rated only to 125°C maximum. The original RN732ATTD2000D50 supports -55°C ~ 155°C. For full temperature range compatibility, select alternatives rated to 155°C: RN73R2ATTD2000D50, RNCF0805DKC200R, RNCF0805DTC200R, CPF0805B200RE1, ERA-6AEB201V, RG2012N-201-B-T5, or RG2012N-201-D-T5.

Q: What does ROHS3 Compliant status mean?

A: ROHS3 Compliant indicates the component meets Restriction of Hazardous Substances Directive 3 requirements, restricting lead, cadmium, mercury, and other hazardous materials. All listed parts maintain ROHS3 compliance.

Q: Are there inventory considerations when selecting a substitute?

A: Yes. Inventory levels vary by part and supplier. ERA-6AEB201V (Panasonic) shows highest availability at 34,786 pieces. RG2012N-201-B-T5 shows 703 pieces. Verify current inventory with your supplier before final selection.

Q: What is Moisture Sensitivity Level (MSL) 1?

A: MSL 1 indicates unlimited shelf life without moisture control requirements. All listed substitute parts maintain MSL 1 rating, requiring no special storage or handling procedures.

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