RN732ATTD3010F10 Equivalent & Substitute Parts

Part Overview

The RN732ATTD3010F10 is a 301 Ohm ±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 ±10ppm/°C and operates across the temperature range of -55°C to 155°C. The part is currently classified as obsolete, with 1,078 pieces available in new original stock.

Due to the obsolete status of RN732ATTD3010F10, equivalent and substitute parts are necessary to ensure continued design support and procurement availability. Substitute components maintain the same resistance value, package format, and core electrical characteristics while offering active product status and enhanced specifications in certain cases.

Key Parameters

Parameter	Value
Resistance	301 Ohms
Tolerance	±1%
Power Rating	0.1W (1/10W)
Package / Case	0805 (2012 Metric)
Composition	Thin Film
Temperature Coefficient	±10ppm/°C
Operating Temperature Range	-55°C to 155°C
Moisture Sensitivity Level	1 (Unlimited)
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility for RN732ATTD3010F10 is determined by the following critical parameters:

Mandatory Matching Parameters:

Resistance value: 301 Ohms
Package format: 0805 (2012 Metric)
Composition: Thin Film
Operating temperature range: -55°C to 155°C
Moisture Sensitivity Level: 1 (Unlimited)

Allowable Variation Parameters:

Tolerance: May be equal to or tighter than ±1% (acceptable values: ±1%, ±0.5%, ±0.1%, ±0.05%, ±0.02%)
Power rating: May be equal to or greater than 0.1W (acceptable values: 0.1W, 0.125W)
Temperature coefficient: May be equal to or tighter than ±10ppm/°C (acceptable values: ±10ppm/°C, ±5ppm/°C)
Product status: Active status preferred for long-term availability
Certifications: AEC-Q200 automotive qualification is an enhancement feature

All substitute parts listed maintain 301 Ohm resistance, 0805 package format, thin film composition, and full operating temperature range compatibility with the original part.

Parameter Comparison

Manufacturer Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Product Status	AEC-Q200	Inventory
RN732ATTD3010F10	KOA Speer Electronics	301 Ω	±1%	0.1	±10	Obsolete	No	1,078
RN73R2ATTD3010F10	KOA Speer Electronics	301 Ω	±1%	0.125	±10	Active	Yes	901
1676298-5	TE Connectivity Passive Product	301 Ω	±0.1%	0.1	±10	Active	No	1,045
RG2012N-3010-B-T5	Susumu	301 Ω	±0.1%	0.125	±10	Active	Yes	694
RG2012N-3010-D-T5	Susumu	301 Ω	±0.5%	0.125	±10	Active	Yes	767
RG2012N-3010-W-T1	Susumu	301 Ω	±0.05%	0.125	±10	Active	Yes	951
RG2012N-3010-W-T5	Susumu	301 Ω	±0.05%	0.125	±10	Active	Yes	799
RG2012V-3010-B-T5	Susumu	301 Ω	±0.1%	0.125	±5	Active	Yes	888
RG2012V-3010-D-T5	Susumu	301 Ω	±0.5%	0.125	±5	Active	Yes	899
RG2012V-3010-P-T1	Susumu	301 Ω	±0.02%	0.125	±5	Active	Yes	824
RG2012V-3010-W-T1	Susumu	301 Ω	±0.05%	0.125	±5	Active	Yes	782

Engineering Selection Recommendations

Direct Equivalent (Same Specifications): RN73R2ATTD3010F10 from KOA Speer Electronics is the direct equivalent, maintaining ±1% tolerance and 0.1W power rating while offering active product status. This part includes AEC-Q200 automotive qualification and represents the primary replacement option for RN732ATTD3010F10.

Upgraded Specifications (Enhanced Performance): All Susumu RG series parts (RG2012N and RG2012V variants) provide tighter tolerance specifications (±0.1%, ±0.05%, or ±0.02%) compared to the original ±1%, with increased power rating of 0.125W. These parts include AEC-Q200 automotive qualification and anti-sulfur features. The RG2012V series offers improved temperature coefficient of ±5ppm/°C versus the original ±10ppm/°C.

TE Connectivity Alternative: Part number 1676298-5 offers ±0.1% tolerance with matching 0.1W power rating and active product status. This option provides tighter tolerance specification without power rating increase.

Selection Criteria:

For direct replacement with minimal specification change: RN73R2ATTD3010F10
For automotive applications requiring AEC-Q200: Any Susumu RG series part or RN73R2ATTD3010F10
For precision applications requiring tighter tolerance: RG2012V-3010-P-T1 (±0.02%) or RG2012V-3010-W-T1 (±0.05%)
For standard industrial applications: RG2012N-3010-D-T5 (±0.5%) or RG2012N-3010-B-T5 (±0.1%)

All substitute parts maintain ROHS3 compliance, MSL 1 rating, and full operating temperature range of -55°C to 155°C.

Frequently Asked Questions (FAQ)

Q: Can RN73R2ATTD3010F10 be used as a direct replacement for RN732ATTD3010F10?

A: Yes. RN73R2ATTD3010F10 maintains identical resistance (301 Ohms), tolerance (±1%), package format (0805), composition (thin film), and operating temperature range (-55°C to 155°C). The primary difference is active product status and inclusion of AEC-Q200 automotive qualification. Power rating increases from 0.1W to 0.125W, which is compatible with applications designed for the original part.

Q: What is the difference between RG2012N and RG2012V series resistors?

A: Both series are manufactured by Susumu with identical package format (0805), resistance (301 Ohms), power rating (0.125W), and AEC-Q200 qualification. The RG2012V series features improved temperature coefficient of ±5ppm/°C compared to RG2012N at ±10ppm/°C. Selection between series depends on temperature stability requirements of the application.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance status, matching the original RN732ATTD3010F10 specification.

Q: Can I use a ±0.05% tolerance part in place of a ±1% tolerance part?

A: Yes. Tighter tolerance specifications are compatible with applications designed for looser tolerances. Parts with ±0.05% tolerance (such as RG2012N-3010-W-T1 or RG2012V-3010-W-T1) will perform within the ±1% requirement while providing superior accuracy.

Q: What is the significance of the AEC-Q200 rating on substitute parts?

A: AEC-Q200 is an automotive qualification standard. Parts bearing this rating have undergone additional reliability testing and are suitable for automotive applications. The original RN732ATTD3010F10 does not carry this rating, while most substitute parts do, providing enhanced qualification for automotive designs.

Q: Does increased power rating (0.125W vs 0.1W) affect circuit compatibility?

A: No. A higher power rating indicates the component can safely dissipate more power without exceeding temperature limits. Applications designed for 0.1W components will operate safely with 0.125W rated parts. The actual power dissipation in the circuit remains unchanged.

Q: Are all substitute parts available in tape and reel packaging?

A: RN73R2ATTD3010F10 is available in tape and reel packaging. All Susumu RG series parts are supplied in tape and reel format. The original RN732ATTD3010F10 packaging format is not specified in the provided data.

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

A: MSL 1 indicates unlimited shelf life without moisture control requirements. All listed parts, including the original and substitutes, carry MSL 1 rating, meaning they do not require special moisture-controlled storage conditions.

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