RN732ATTD3201B25 Equivalent & Substitute Parts

Part Overview

The RN732ATTD3201B25 is a 3.2 kOhms ±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 ±25ppm/°C and operates across -55°C to 155°C. The part is classified as obsolete, necessitating identification of active equivalent and substitute components for new designs and ongoing production requirements. Substitute parts maintain the same resistance value and tolerance while offering enhanced power ratings, automotive certifications, or improved feature sets.

Key Parameters

Parameter	Value
Resistance	3.2 kOhms
Tolerance	±0.1%
Power Rating	0.1W (1/10W)
Package / Case	0805 (2012 Metric)
Composition	Thin Film
Temperature Coefficient	±25ppm/°C
Operating Temperature Range	-55°C ~ 155°C
Moisture Resistance	Yes
RoHS Status	ROHS3 Compliant
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitution of the RN732ATTD3201B25 is determined by strict adherence to the following electrical and mechanical parameters:

Primary Substitution Criteria:

Resistance value: 3.2 kOhms (exact match required)
Tolerance: ±0.1% (exact match required)
Package: 0805 (2012 Metric) (exact match required)
Composition: Thin Film (exact match required)
Temperature Coefficient: ±25ppm/°C (exact match required)
Operating Temperature Range: Minimum -55°C ~ 155°C (equal or extended range acceptable)

Secondary Substitution Criteria:

Power rating: Equal or higher rating acceptable (0.1W minimum)
Moisture resistance: Required feature
RoHS compliance: ROHS3 preferred for new designs

Substitute parts are categorized as direct substitutes (matching all primary criteria with identical or higher power ratings) or upgrades (enhanced power ratings, automotive certifications, or improved environmental features while maintaining all primary electrical parameters).

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff (ppm/°C)	Temp Range (°C)	Package	Status	RoHS
RN732ATTD3201B25	KOA Speer	3.2k	±0.1%	0.1	±25	-55 ~ 155	0805	Obsolete	ROHS3
RN73R2ATTD3201B25	KOA Speer	3.2k	±0.1%	0.125	±25	-55 ~ 155	0805	Active	ROHS3
RT0805BRD073K2L	YAGEO	3.2k	±0.1%	0.125	±25	-55 ~ 155	0805	Active	ROHS3
TNPW08053K20BETY	Vishay Dale	3.2k	±0.1%	0.125	±25	-55 ~ 125	0805	Active	Non-compliant
PAT0805E3201BST1	Vishay Dale	3.2k	±0.1%	0.2	±25	-55 ~ 155	0805	Active	ROHS3
PHP00805E3201BBT1	Vishay Dale	3.2k	±0.1%	0.63	±25	-55 ~ 155	0805	Active	Non-compliant
PHP00805E3201BST1	Vishay Dale	3.2k	±0.1%	0.63	±25	-55 ~ 155	0805	Active	ROHS3
RNCF0805BKE3K20	Stackpole	3.2k	±0.1%	0.25	±25	-55 ~ 155	0805	Active	ROHS3
TNPW08053K20BECN	Vishay Dale	3.2k	±0.1%	0.125	±25	-55 ~ 125	0805	Active	Non-compliant
TNPW08053K20BEEA	Vishay Dale	3.2k	±0.1%	0.26	±25	-55 ~ 175	0805	Active	ROHS3

Engineering Selection Recommendations

Direct Substitutes (Minimum Upgrade Path):

The RN73R2ATTD3201B25 (KOA Speer) and RT0805BRD073K2L (YAGEO) serve as direct substitutes with 0.125W power rating. Both maintain ROHS3 compliance and full -55°C to 155°C operating range. The RN73R2ATTD3201B25 adds automotive AEC-Q200 qualification, suitable for automotive applications. Both are active products with established supply chains.

Enhanced Substitutes (Recommended for New Designs):

For applications requiring extended thermal performance or higher power dissipation margins, the TNPW08053K20BEEA (Vishay Dale) offers 0.26W rating with extended -55°C to 175°C operating range, ROHS3 compliance, automotive AEC-Q200 qualification, anti-sulfur construction, and moisture resistance. This part provides the highest operating temperature ceiling and is actively produced with substantial inventory availability.

High-Power Upgrade Options:

The PAT0805E3201BST1 (0.2W) and RNCF0805BKE3K20 (0.25W) provide intermediate power ratings with ROHS3 compliance and automotive AEC-Q200 certification. The PHP00805E3201BST1 (0.63W, ROHS3 compliant) offers maximum power dissipation for demanding applications with flame-proof and safety-rated construction.

Compliance Considerations:

For new designs requiring RoHS3 compliance, select from: RN73R2ATTD3201B25, RT0805BRD073K2L, PAT0805E3201BST1, PHP00805E3201BST1, RNCF0805BKE3K20, or TNPW08053K20BEEA. The TNPW series parts (TNPW08053K20BETY, TNPW08053K20BECN) are RoHS non-compliant and REACH-affected; use only in applications where legacy compliance is acceptable.

Temperature Range Limitation:

TNPW series military-grade parts (TNPW08053K20BETY, TNPW08053K20BECN) operate only to 125°C maximum, restricting use to applications not requiring the full 155°C upper limit of the original part.

Frequently Asked Questions (FAQ)

Q: Can I use a substitute part with higher power rating than the original RN732ATTD3201B25?

A: Yes. Higher power ratings (0.125W, 0.2W, 0.25W, 0.26W, or 0.63W) are acceptable substitutes provided all other parameters match: 3.2 kOhms resistance, ±0.1% tolerance, 0805 package, thin film composition, ±25ppm/°C temperature coefficient, and -55°C to 155°C operating range. Higher power ratings provide additional thermal margin without affecting electrical performance.

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

A: Direct substitutes maintain the original power rating (0.1W) or provide minimal increases (0.125W) while preserving all other specifications. Upgrade parts offer significantly higher power ratings (0.2W and above) or enhanced features such as automotive AEC-Q200 certification, anti-sulfur construction, or extended temperature ranges. Both categories maintain the core electrical parameters required for functional equivalence.

Q: Are all substitute parts RoHS3 compliant?

A: No. The TNPW series parts (TNPW08053K20BETY, TNPW08053K20BECN, TNPW08053K20BEEA) include both RoHS3-compliant and non-compliant variants. TNPW08053K20BEEA is ROHS3 compliant; TNPW08053K20BETY and TNPW08053K20BECN are RoHS non-compliant. For new designs, select ROHS3-compliant parts: RN73R2ATTD3201B25, RT0805BRD073K2L, PAT0805E3201BST1, PHP00805E3201BST1, RNCF0805BKE3K20, or TNPW08053K20BEEA.

Q: Does the 0805 package dimension vary between manufacturers?

A: Nominal dimensions are consistent (0.079" L x 0.049" W / 2.00mm x 1.25mm), but seated height varies slightly. Most parts specify 0.024" (0.60mm) maximum height; PAT0805E3201BST1 and PHP series specify 0.018" to 0.033" (0.46mm to 0.84mm). Verify height clearance for space-constrained PCB layouts.

Q: Which substitute offers the widest operating temperature range?

A: The TNPW08053K20BEEA extends to 175°C maximum, exceeding the original part's 155°C limit. This part combines extended temperature range with ROHS3 compliance, automotive AEC-Q200 qualification, and 0.26W power rating.

Q: Can I substitute the RN732ATTD3201B25 with a TNPW military-grade part?

A: The TNPW08053K20BETY and TNPW08053K20BECN are functionally equivalent for resistance, tolerance, and package, but operate only to 125°C maximum versus the original 155°C. Use only if your application does not require the full temperature range. Additionally, these parts are RoHS non-compliant; verify regulatory requirements before selection.

Q: What is the inventory status of substitute parts?

A: All substitute parts listed are active products with current production. Inventory levels range from 710 to 3018 pieces in stock, with TNPW08053K20BEEA offering the highest availability (3018 pieces). RN73R2ATTD3201B25 and TNPW08053K20BECN each have over 1000 pieces available.

Q: Are automotive AEC-Q200 certified parts required for my application?

A: AEC-Q200 certification is required only for automotive applications. Certified substitutes include: RN73R2ATTD3201B25, PAT0805E3201BST1, RNCF0805BKE3K20, and TNPW08053K20BEEA. For non-automotive applications, any substitute meeting the core electrical parameters is acceptable.

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