Equivalent & Substitute Parts for RN732ATTD3012D100

Part Overview

The RN732ATTD3012D100 is a 30.1 kOhms ±0.5% thin film chip resistor manufactured by KOA Speer Electronics, Inc., specified for 0.1W (1/10W) power dissipation in 0805 (2012 Metric) surface mount package. This part is classified as obsolete product status. Substitute parts are necessary to maintain design continuity and ensure component availability for production and repair applications. Alternative models meeting the same electrical and mechanical specifications are available from active product lines.

Key Parameters

Parameter	Value
Resistance	30.1 kOhms
Tolerance	±0.5%
Power Rating	0.1W (1/10W)
Composition	Thin Film
Package / Case	0805 (2012 Metric)
Operating Temperature Range	-55°C ~ 155°C
Moisture Sensitivity Level (MSL)	1 (Unlimited)
RoHS Status	ROHS3 Compliant
Size / Dimension	0.079" L x 0.049" W (2.00mm x 1.25mm)

Substitute Part Grouping Explanation

Substitution of the RN732ATTD3012D100 is determined by the following critical parameters:

Mandatory Matching Parameters:

Resistance value: 30.1 kOhms
Tolerance: ±0.5%
Package / Case: 0805 (2012 Metric)
Operating Temperature Range: -55°C ~ 155°C
Composition: Thin Film
RoHS Status: ROHS3 Compliant
Moisture Sensitivity Level: 1 (Unlimited)

Allowable Variation:

Power Rating: Substitute parts with equal or higher power ratings (0.125W, 0.25W) are acceptable as they provide equivalent or superior performance capability
Temperature Coefficient: Variations in temperature coefficient do not affect substitutability for this application category
Packaging Format: Both cut tape and tape & reel formats are interchangeable at component level

Substitute parts are grouped into two categories based on power rating upgrade: 0.125W (1/8W) and 0.25W (1/4W) options, all maintaining identical resistance, tolerance, package, and operating temperature specifications.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (Watts)	Temperature Coefficient	Operating Temperature	Package / Case	Product Status	RoHS Status
RN732ATTD3012D100	KOA Speer Electronics, Inc.	30.1 kOhms	±0.5%	0.1W	±100ppm/°C	-55°C ~ 155°C	0805 (2012 Metric)	Obsolete	ROHS3 Compliant
RN73R2ATTD3012D100	KOA Speer Electronics, Inc.	30.1 kOhms	±0.5%	0.125W	±100ppm/°C	-55°C ~ 155°C	0805 (2012 Metric)	Active	ROHS3 Compliant
AT0805DRD0730K1L	YAGEO	30.1 kOhms	±0.5%	0.125W	±25ppm/°C	-55°C ~ 155°C	0805 (2012 Metric)	Active	ROHS3 Compliant
AT0805DRE0730K1L	YAGEO	30.1 kOhms	±0.5%	0.125W	±50ppm/°C	-55°C ~ 155°C	0805 (2012 Metric)	Active	ROHS3 Compliant
MCU08050C3012DPW00	Vishay Beyschlag/Draloric/BC Components	30.1 kOhms	±0.5%	0.125W	±50ppm/°C	-55°C ~ 155°C	0805 (2012 Metric)	Active	ROHS3 Compliant
RG2012N-3012-D-T5	Susumu	30.1 kOhms	±0.5%	0.125W	±10ppm/°C	-55°C ~ 155°C	0805 (2012 Metric)	Active	ROHS3 Compliant
RG2012P-3012-D-T5	Susumu	30.1 kOhms	±0.5%	0.125W	±25ppm/°C	-55°C ~ 155°C	0805 (2012 Metric)	Active	ROHS3 Compliant
RNCF0805DKE30K1	Stackpole Electronics Inc	30.1 kOhms	±0.5%	0.25W	±25ppm/°C	-55°C ~ 155°C	0805 (2012 Metric)	Active	ROHS3 Compliant
RNCF0805DTC30K1	Stackpole Electronics Inc	30.1 kOhms	±0.5%	0.25W	±50ppm/°C	-55°C ~ 155°C	0805 (2012 Metric)	Active	ROHS3 Compliant
RNCF0805DTE30K1	Stackpole Electronics Inc	30.1 kOhms	±0.5%	0.25W	±25ppm/°C	-55°C ~ 155°C	0805 (2012 Metric)	Active	ROHS3 Compliant
RP73F2A30K1DTD	TE Connectivity Passive Product	30.1 kOhms	±0.5%	0.125W	±25ppm/°C	-55°C ~ 155°C	0805 (2012 Metric)	Active	ROHS3 Compliant

Engineering Selection Recommendations

All listed substitute parts meet the mandatory electrical and mechanical compatibility requirements for direct replacement of RN732ATTD3012D100. Selection among available substitutes is based on the following criteria:

Direct Manufacturer Upgrade: RN73R2ATTD3012D100 from KOA Speer Electronics, Inc. provides continuity within the same manufacturer's product line. This part maintains identical specifications while offering active product status and automotive AEC-Q200 qualification.

Active Product Availability: All substitute parts listed carry active product status, ensuring long-term availability and supply chain stability compared to the obsolete RN732ATTD3012D100.

Power Rating Consideration: Substitute parts with 0.125W (1/8W) and 0.25W (1/4W) ratings provide equal or superior thermal performance. Selection of higher power ratings does not compromise circuit function and offers design margin for thermal management.

Compliance and Certifications: All substitute parts maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity rating, matching the original part's environmental specifications. Automotive-qualified options (AEC-Q200) are available from YAGEO, Susumu, and Stackpole Electronics Inc. for applications requiring automotive-grade components.

Manufacturer Diversity: Multiple qualified manufacturers provide substitutes, reducing single-source dependency and supporting supply chain resilience.

Frequently Asked Questions (FAQ)

Q: Can RN73R2ATTD3012D100 directly replace RN732ATTD3012D100 in existing designs?

A: Yes. RN73R2ATTD3012D100 is a direct substitute. Both parts share identical resistance (30.1 kOhms), tolerance (±0.5%), package (0805), operating temperature range (-55°C ~ 155°C), and RoHS compliance. The higher power rating (0.125W vs. 0.1W) provides additional thermal margin without affecting circuit performance.

Q: What is the difference between 0.125W and 0.25W power-rated substitutes?

A: Power rating indicates maximum continuous power dissipation capability. Both 0.125W and 0.25W rated parts are electrically equivalent for the RN732ATTD3012D100 application. Selection of 0.25W rated parts (RNCF series from Stackpole) provides additional thermal headroom in high-dissipation environments. Physical dimensions remain identical at 0805 package size.

Q: Are automotive-qualified substitutes (AEC-Q200) compatible with non-automotive applications?

A: Yes. Automotive-qualified parts meet or exceed standard industrial specifications. AEC-Q200 certified substitutes such as AT0805DRD0730K1L, RG2012N-3012-D-T5, and RNCF0805DTE30K1 are fully compatible with non-automotive applications and offer enhanced reliability margins.

Q: Does temperature coefficient variation affect substitutability?

A: No. Temperature coefficient differences among substitute parts do not affect substitutability for this component category. All listed parts operate within the specified -55°C ~ 155°C range. Temperature coefficient variations (±10ppm/°C to ±100ppm/°C) reflect different manufacturing processes but do not impact functional compatibility.

Q: Can I use RNCF0805DTE30K1 (0.25W) in place of RN732ATTD3012D100 (0.1W)?

A: Yes. RNCF0805DTE30K1 is a valid substitute. The higher power rating (0.25W) ensures thermal performance exceeds the original specification. All other parameters—resistance, tolerance, package, operating temperature, and compliance—match or exceed the original part requirements.

Q: What is the inventory status of substitute parts?

A: All listed substitute parts are in active production with confirmed inventory availability: RN73R2ATTD3012D100 (893 Pcs), AT0805DRD0730K1L (748 Pcs), AT0805DRE0730K1L (798 Pcs), MCU08050C3012DPW00 (688 Pcs), RG2012N-3012-D-T5 (1015 Pcs), RG2012P-3012-D-T5 (708 Pcs), RNCF0805DKE30K1 (865 Pcs), RNCF0805DTC30K1 (1136 Pcs), RNCF0805DTE30K1 (9384 Pcs), and RP73F2A30K1DTD (967 Pcs).

Q: Are tape & reel packaged parts interchangeable with cut tape formats?

A: Yes. Tape & reel and cut tape formats contain identical components. Packaging format differences affect only handling and storage logistics, not electrical or mechanical compatibility. Component-level substitution is valid regardless of packaging format.

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