RN732BTTD2103C50 Equivalent & Substitute Parts

Part Overview

The RN732BTTD2103C50 is a 210 kOhms ±0.25% thin film chip resistor manufactured by KOA Speer Electronics, Inc. in 1206 (3216 Metric) package format with 0.125W power rating. This component is classified as Obsolete product status. Due to discontinuation, equivalent substitute parts with compatible electrical and mechanical specifications are available to maintain design continuity and procurement flexibility.

Substiute Parts

RN732BTTD2103C50

KOA Speer Electronics, Inc.In Stock: 1040RN732BTTD2103C50 Datasheet

Current PartRFQ

RN73R2BTTD2103C50

KOA Speer Electronics, Inc.In Stock: 967RN73R2BTTD2103C50 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RN732BTTD2103C50 is determined by strict equivalence in the following parameters:

Critical Matching Parameters:

• Resistance value: 210 kOhms
• Tolerance: ±0.25%
• Package / Case: 1206 (3216 Metric)
• Composition: Thin Film
• Temperature Coefficient: ±50ppm/°C
• Operating Temperature Range: -55°C ~ 155°C
• Moisture Resistant feature
• RoHS3 Compliance

Allowable Variation:

• Power rating may be equal or higher than the original 0.125W specification, provided the package dimensions remain identical and thermal characteristics do not degrade circuit performance.

The substitute part RN73R2BTTD2103C50 meets all critical matching parameters with an increased power rating of 0.25W (1/4W), which is a direct upgrade within the same 1206 package footprint.

Parameter Comparison

Engineering Selection Recommendations

The RN73R2BTTD2103C50 is a direct functional substitute for the obsolete RN732BTTD2103C50. Selection is based on the following engineering criteria:

Product Status Consideration: The main part is classified as Obsolete, making the active-status substitute necessary for ongoing procurement and new production builds.

Electrical Equivalence: Both parts maintain identical resistance (210 kOhms), tolerance (±0.25%), temperature coefficient (±50ppm/°C), and operating temperature range (-55°C ~ 155°C). These parameters ensure electrical performance equivalence in circuit applications.

Mechanical Compatibility: Identical 1206 (3216 Metric) package dimensions and footprint enable direct PCB layout compatibility without redesign.

Power Rating Upgrade: The substitute's 0.25W rating exceeds the original 0.125W specification. This upgrade provides additional thermal margin and is compatible with the same package footprint, presenting no mechanical or thermal derating concerns for applications originally designed for 0.125W.

Compliance and Certifications: Both parts are ROHS3 Compliant with MSL 1 (Unlimited) moisture sensitivity rating. The substitute includes Automotive AEC-Q200 certification, which represents an additional quality assurance level applicable to automotive and high-reliability applications.

Thin Film Composition: Both parts utilize thin film technology, ensuring consistent performance characteristics and precision tolerance maintenance across the operating temperature range.

Frequently Asked Questions (FAQ)

Q: Can RN73R2BTTD2103C50 directly replace RN732BTTD2103C50 on existing PCBs?

A: Yes. Both parts share identical 1206 (3216 Metric) package dimensions (0.126" L x 0.063" W, 3.20mm x 1.60mm) and footprint. No PCB layout modifications are required for direct substitution.

Q: What is the significance of the higher 0.25W power rating on the substitute?

A: The substitute's 0.25W rating provides increased power dissipation capability compared to the original 0.125W specification. This represents a performance upgrade within the same package size and does not introduce compatibility issues. Applications designed for 0.125W operation will function within the substitute's thermal envelope.

Q: Are the electrical characteristics identical between the two parts?

A: Yes. Both parts specify 210 kOhms resistance, ±0.25% tolerance, ±50ppm/°C temperature coefficient, and -55°C ~ 155°C operating temperature range. Electrical performance in circuit applications is equivalent.

Q: What does the Automotive AEC-Q200 certification on the substitute indicate?

A: AEC-Q200 is an automotive industry qualification standard for passive components. This certification on the substitute indicates compliance with automotive reliability and quality requirements. It does not restrict use in non-automotive applications and represents an additional quality assurance level.

Q: Are both parts RoHS3 compliant?

A: Yes. Both RN732BTTD2103C50 and RN73R2BTTD2103C50 are ROHS3 Compliant, meeting environmental and hazardous substance restrictions.

Q: What is the Moisture Sensitivity Level (MSL) for these parts?

A: Both parts are rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions during storage, handling, or assembly processes.

Q: Why is the main part classified as Obsolete?

A: Product obsolescence reflects manufacturer discontinuation decisions. The substitute RN73R2BTTD2103C50 remains in active production, ensuring continued availability for new designs and production replenishment.