RN732BTTD7591F25 Equivalent & Substitute Parts

Part Overview

The RN732BTTD7591F25 is a 7.59 kOhms ±1% thin film chip resistor manufactured by KOA Speer Electronics in 1206 (3216 Metric) package format. This component is rated for 0.125W (1/8W) power dissipation with moisture-resistant construction and operates across -55°C to 155°C. The part is currently obsolete, necessitating identification of functionally equivalent alternatives that maintain electrical and mechanical compatibility while meeting current application requirements.

Key Parameters

Parameter	Value
Resistance	7.59 kOhms
Tolerance	±1%
Power Rating	0.125W (1/8W)
Package	1206 (3216 Metric)
Composition	Thin Film
Temperature Coefficient	±25ppm/°C
Operating Temperature Range	-55°C to 155°C
Features	Moisture Resistant
Terminations	2
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution eligibility is determined by the following mandatory parameters:

Resistance Value: Must be 7.59 kOhms (exact match)
Package Format: Must be 1206 (3216 Metric) with identical footprint dimensions (0.126" L × 0.063" W)
Composition: Must be thin film construction
Temperature Coefficient: Must be ±25ppm/°C
Termination Count: Must be 2 terminations
Moisture Sensitivity Level: Must be MSL 1 (Unlimited)

Substitute parts are grouped into two categories:

Direct Substitutes maintain the original tolerance (±1%) and power rating (0.125W) with identical electrical performance.

Upgrade Substitutes offer improved tolerance (±0.1%), higher power ratings (0.25W–0.52W), or enhanced features (automotive AEC-Q200, anti-sulfur, non-inductive) while maintaining full mechanical and thermal compatibility.

Parameter Comparison

Part Number	Manufacturer	Resistance	Tolerance	Power (W)	Temp Coeff	Op. Temp Range	Features	Status	RoHS
RN732BTTD7591F25	KOA Speer	7.59 kΩ	±1%	0.125	±25ppm/°C	-55 to 155°C	Moisture Resistant	Obsolete	ROHS3
RN73R2BTTD7591F25	KOA Speer	7.59 kΩ	±1%	0.25	±25ppm/°C	-55 to 155°C	Automotive AEC-Q200, Moisture Resistant	Active	ROHS3
PTN1206E7591BST1	Vishay Dale	7.59 kΩ	±0.1%	0.4	±25ppm/°C	-55 to 155°C	Anti-Sulfur, Moisture Resistant, Non-Inductive	Active	ROHS3
TNPW12067K59BEEA	Vishay Dale	7.59 kΩ	±0.1%	0.52	±25ppm/°C	-55 to 175°C	Anti-Sulfur, Automotive AEC-Q200, Moisture Resistant	Active	ROHS3
TNPW12067K59BEEN	Vishay Dale	7.59 kΩ	±0.1%	0.52	±25ppm/°C	-55 to 175°C	Anti-Sulfur, Automotive AEC-Q200, Moisture Resistant	Active	ROHS3
TNPW12067K59BETY	Vishay Dale	7.59 kΩ	±0.1%	0.25	±25ppm/°C	-55 to 125°C	Military	Active	Non-compliant

Engineering Selection Recommendations

RN73R2BTTD7591F25 (KOA Speer) is the primary direct substitute. It maintains ±1% tolerance and identical thermal characteristics while offering doubled power capacity (0.25W) and active product status. Automotive AEC-Q200 qualification provides enhanced reliability for demanding applications. ROHS3 compliance ensures regulatory alignment.

PTN1206E7591BST1 (Vishay Dale) provides superior tolerance (±0.1%) and increased power rating (0.4W) with non-inductive construction. Anti-sulfur and moisture-resistant features enhance environmental durability. Suitable for precision applications requiring tighter tolerance specifications.

TNPW12067K59BEEA and TNPW12067K59BEEN (Vishay Dale) offer the highest power capacity (0.52W) with ±0.1% tolerance and extended operating temperature range (-55°C to 175°C). Automotive AEC-Q200 qualification and anti-sulfur features support automotive and industrial applications. Both parts are functionally equivalent; selection depends on inventory availability.

TNPW12067K59BETY (Vishay Dale) is a military-grade alternative with ±0.1% tolerance and 0.25W power rating. Note: This part is RoHS non-compliant and REACH-affected, limiting use in regulated markets. Operating temperature range is restricted to -55°C to 125°C.

Frequently Asked Questions (FAQ)

Q: Can RN732BTTD7591F25 be directly replaced with RN73R2BTTD7591F25?

A: Yes. Both parts share identical resistance (7.59 kΩ), tolerance (±1%), package (1206), and thermal characteristics (±25ppm/°C, -55°C to 155°C). RN73R2BTTD7591F25 provides higher power capacity (0.25W vs. 0.125W) and active product status, making it a compatible direct replacement.

Q: What is the difference between the Vishay Dale TNPW12067K59BEEA and TNPW12067K59BEEN parts?

A: Both parts are electrically and mechanically identical: 7.59 kΩ ±0.1%, 0.52W, 1206 package, -55°C to 175°C operating range, with automotive AEC-Q200 qualification. Differences are limited to manufacturing lot codes or regional availability. Selection should be based on inventory and supply chain considerations.

Q: Are all substitute parts compatible with the original 1206 footprint?

A: Yes. All substitute parts use the 1206 (3216 Metric) package with identical footprint dimensions (0.126" L × 0.063" W). Physical board layout compatibility is maintained across all alternatives.

Q: Which substitute offers the best tolerance specification?

A: PTN1206E7591BST1, TNPW12067K59BEEA, TNPW12067K59BEEN, and TNPW12067K59BETY all provide ±0.1% tolerance, compared to the original ±1%. This tighter tolerance reduces circuit performance variation and is beneficial for precision analog applications.

Q: Can TNPW12067K59BETY be used in commercial applications?

A: TNPW12067K59BETY is not recommended for commercial applications requiring RoHS compliance. This part is RoHS non-compliant and REACH-affected. It is suitable only for military or legacy systems where such restrictions do not apply.

Q: What is the maximum operating temperature for each substitute?

A: RN73R2BTTD7591F25 and PTN1206E7591BST1 operate to 155°C. TNPW12067K59BEEA and TNPW12067K59BEEN extend to 175°C. TNPW12067K59BETY is limited to 125°C. Select based on application thermal requirements.

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