RN732BTTD44R2C25 Equivalent & Substitute Parts

Part Overview

The RN732BTTD44R2C25 is a 44.2 Ohm ±0.25% 0.125W (1/8W) chip resistor in 1206 (3216 Metric) package manufactured by KOA Speer Electronics, Inc. This thin film, moisture-resistant component is designed for precision applications requiring tight tolerance and stable performance across the -55°C to 155°C operating temperature range. The product is currently obsolete, making identification of suitable substitute components essential for ongoing design support and production continuity.

Substiute Parts

RN732BTTD44R2C25

KOA Speer Electronics, Inc.In Stock: 1075RN732BTTD44R2C25 Datasheet

Current PartRFQ

RN73R2BTTD44R2C25

KOA Speer Electronics, Inc.In Stock: 905RN73R2BTTD44R2C25 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RN732BTTD44R2C25 is determined by the following critical parameters:

• Resistance value: 44.2 Ohms (exact match required)
• Tolerance: ±0.25% (precision specification)
• Package / Case: 1206 (3216 Metric) (physical and electrical compatibility)
• Composition: Thin Film (performance characteristics)
• Temperature Coefficient: ±25ppm/°C (stability requirement)
• Operating Temperature Range: -55°C ~ 155°C (environmental compatibility)
• Moisture Resistance: Required feature
• RoHS3 Compliance: Regulatory requirement

The substitute part RN73R2BTTD44R2C25 maintains all critical electrical and mechanical parameters while offering an increased power rating of 0.25W (1/4W) and active product status with automotive AEC-Q200 qualification.

Parameter Comparison

Engineering Selection Recommendations

The RN73R2BTTD44R2C25 is a direct substitute for the obsolete RN732BTTD44R2C25. Both components share identical electrical specifications (44.2 Ohms, ±0.25% tolerance, ±25ppm/°C temperature coefficient) and mechanical compatibility (1206 package, identical dimensions). The substitute offers enhanced reliability through active product status and automotive AEC-Q200 qualification, while maintaining ROHS3 compliance and unlimited moisture sensitivity rating. The increased power rating (0.25W versus 0.125W) provides additional thermal margin without affecting circuit performance in applications designed for the original component.

Frequently Asked Questions (FAQ)

Q: Can RN73R2BTTD44R2C25 be used as a direct replacement for RN732BTTD44R2C25?

A: Yes. Both components have identical resistance (44.2 Ohms), tolerance (±0.25%), temperature coefficient (±25ppm/°C), package (1206), and operating temperature range (-55°C ~ 155°C). The substitute is physically and electrically compatible.

Q: What is the difference between the two parts?

A: The primary differences are power rating (0.125W versus 0.25W) and product status (obsolete versus active). The substitute includes automotive AEC-Q200 qualification. The higher power rating of the substitute provides additional thermal capacity without affecting circuit operation.

Q: Are both parts in the same package?

A: Yes. Both components use the 1206 (3216 Metric) package with identical 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 RoHS requirements?

A: Yes. Both RN732BTTD44R2C25 and RN73R2BTTD44R2C25 are ROHS3 compliant with moisture sensitivity level 1 (unlimited).

Q: Why is the original part obsolete?

A: The RN732BTTD44R2C25 has been discontinued by the manufacturer. The RN73R2BTTD44R2C25 represents the active equivalent with enhanced specifications and automotive qualification.