RN732BTTD41R2D50 Equivalent & Substitute Parts

Part Overview

The RN732BTTD41R2D50 is a 41.2 Ohms ±0.5% thin film chip resistor manufactured by KOA Speer Electronics, Inc. in 1206 (3216 Metric) package format with 0.125W (1/8W) power rating. This component is classified as obsolete product status. Identifying equivalent and substitute parts is necessary due to discontinued availability and the need for continued supply chain support in applications requiring this resistance value and tolerance specification.

Substiute Parts

RN732BTTD41R2D50

KOA Speer Electronics, Inc.In Stock: 762RN732BTTD41R2D50 Datasheet

Current PartRFQ

RN73R2BTTD41R2D50

KOA Speer Electronics, Inc.In Stock: 1185RN73R2BTTD41R2D50 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RN732BTTD41R2D50 is determined by strict equivalence in the following parameters:

Critical Parameters for Substitution:

• Resistance value: 41.2 Ohms (exact match required)
• Tolerance: ±0.5% (exact match required)
• Package / Case: 1206 (3216 Metric) (exact match required)
• Composition: Thin Film (exact match required)
• Temperature Coefficient: ±50ppm/°C (exact match required)
• Operating Temperature Range: -55°C ~ 155°C (exact match required)

Allowable Variation:

• Power Rating: The substitute part may have equal or higher power rating than the original specification, provided all other parameters remain identical.

The RN73R2BTTD41R2D50 qualifies as a direct substitute because it maintains identical resistance, tolerance, package, composition, temperature coefficient, and operating temperature range. The power rating increase from 0.125W to 0.25W represents an uprating that does not compromise compatibility in applications designed for the original part.

Parameter Comparison

Engineering Selection Recommendations

The RN73R2BTTD41R2D50 is the direct substitute for the obsolete RN732BTTD41R2D50. Selection of this substitute is based on the following engineering factors:

Product Status: The main part RN732BTTD41R2D50 carries obsolete status, making the active-status RN73R2BTTD41R2D50 the appropriate replacement for ongoing supply requirements.

Compliance and Certifications: Both parts maintain ROHS3 compliance and identical moisture sensitivity ratings. The substitute part includes automotive AEC-Q200 qualification, which provides additional quality assurance without introducing incompatibility.

Electrical and Mechanical Equivalence: All critical electrical parameters (resistance, tolerance, temperature coefficient, operating temperature range) and mechanical specifications (package, dimensions, terminations) are identical between the two parts.

Power Rating Consideration: The substitute part features a higher power rating (0.25W versus 0.125W). This uprating does not create compatibility issues in applications originally designed for the 0.125W part, as the substitute can safely handle the same or lower power dissipation levels.

Frequently Asked Questions (FAQ)

Q: Can the RN73R2BTTD41R2D50 be used as a direct replacement for the RN732BTTD41R2D50?

A: Yes. The RN73R2BTTD41R2D50 is a direct substitute. Both parts share identical resistance (41.2 Ohms), tolerance (±0.5%), package (1206), composition (thin film), temperature coefficient (±50ppm/°C), and operating temperature range (-55°C ~ 155°C).

Q: What is the difference between these two parts?

A: The primary differences are: (1) Power rating: RN732BTTD41R2D50 is rated 0.125W while RN73R2BTTD41R2D50 is rated 0.25W; (2) Product status: RN732BTTD41R2D50 is obsolete while RN73R2BTTD41R2D50 is active; (3) Features: RN73R2BTTD41R2D50 includes automotive AEC-Q200 qualification.

Q: Will the higher power rating of the substitute part affect circuit performance?

A: No. The higher power rating of the substitute part (0.25W) does not affect circuit performance. The substitute can safely operate at power levels equal to or below the original specification (0.125W).

Q: Are both parts available in the same package?

A: Yes. Both parts use the 1206 (3216 Metric) package with identical physical dimensions: 0.126" L x 0.063" W (3.20mm x 1.60mm) and maximum seated height of 0.028" (0.70mm).

Q: Do both parts meet the same environmental and compliance standards?

A: Yes. Both parts are ROHS3 compliant, REACH unaffected, and carry MSL rating of 1 (Unlimited). The substitute part includes additional automotive AEC-Q200 qualification.

Q: Is the substitute part suitable for automotive applications?

A: The RN73R2BTTD41R2D50 carries AEC-Q200 automotive qualification, making it suitable for automotive applications. The original RN732BTTD41R2D50 does not carry this qualification.