RN732BTTD2103C25 Equivalent & Substitute Parts

Part Overview

The RN732BTTD2103C25 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

RN732BTTD2103C25

KOA Speer Electronics, Inc.In Stock: 1151RN732BTTD2103C25 Datasheet

Current PartRFQ

RN73R2BTTD2103C25

KOA Speer Electronics, Inc.In Stock: 1019RN73R2BTTD2103C25 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RN732BTTD2103C25 is determined by strict equivalence in the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 210 kOhms
• Tolerance: ±0.25%
• Package / Case: 1206 (3216 Metric)
• Composition: Thin Film
• Temperature Coefficient: ±25ppm/°C
• Operating Temperature Range: -55°C ~ 155°C
• Moisture Resistant feature

Allowable Variation:

• Power rating may be equal or higher than 0.125W
• Product status may differ (Active vs. Obsolete)
• Additional certifications (such as AEC-Q200) do not disqualify substitution

The substitute part RN73R2BTTD2103C25 meets all mandatory matching parameters and provides higher power rating (0.25W vs. 0.125W), making it a valid electrical and mechanical equivalent.

Parameter Comparison

Engineering Selection Recommendations

The RN73R2BTTD2103C25 is a direct substitute for the RN732BTTD2103C25 based on the following engineering criteria:

Electrical Equivalence: Both parts maintain identical resistance (210 kOhms), tolerance (±0.25%), temperature coefficient (±25ppm/°C), and operating temperature range (-55°C ~ 155°C). The substitute's higher power rating (0.25W vs. 0.125W) provides additional thermal margin without affecting circuit performance.

Mechanical Compatibility: Both components use identical 1206 (3216 Metric) package format with matching physical dimensions (0.126" L x 0.063" W, 3.20mm x 1.60mm) and height (0.028" / 0.70mm). Direct PCB footprint compatibility is confirmed.

Compliance Status: Both parts are ROHS3 Compliant with MSL 1 (Unlimited) moisture sensitivity rating. The substitute includes AEC-Q200 automotive qualification, which does not restrict use in non-automotive applications.

Product Availability: The substitute part RN73R2BTTD2103C25 maintains Active product status with current manufacturing availability, addressing the obsolescence of the original part.

Frequently Asked Questions (FAQ)

Q: Can RN73R2BTTD2103C25 replace RN732BTTD2103C25 in existing designs?

A: Yes. Both parts are electrically and mechanically equivalent. The substitute maintains identical resistance, tolerance, temperature coefficient, and package format. The higher power rating (0.25W vs. 0.125W) does not create compatibility issues.

Q: What is the difference between the two part numbers?

A: The primary difference is power rating. RN732BTTD2103C25 is rated 0.125W (1/8W), while RN73R2BTTD2103C25 is rated 0.25W (1/4W). The substitute also includes AEC-Q200 automotive qualification. Both use identical 1206 package and thin film composition.

Q: Are the physical dimensions identical?

A: Yes. Both parts measure 0.126" L x 0.063" W (3.20mm x 1.60mm) with maximum seated height of 0.028" (0.70mm). PCB footprints are identical.

Q: Does the substitute's AEC-Q200 certification affect non-automotive applications?

A: No. AEC-Q200 certification indicates additional qualification testing and does not restrict use in non-automotive circuits. The part remains fully compatible with all applications suitable for the original component.

Q: Are both parts RoHS compliant?

A: Yes. Both RN732BTTD2103C25 and RN73R2BTTD2103C25 are ROHS3 Compliant with MSL 1 (Unlimited) moisture sensitivity rating.

Q: Why is the original part listed as Obsolete?

A: RN732BTTD2103C25 has been discontinued by the manufacturer. The substitute RN73R2BTTD2103C25 remains in active production and provides equivalent performance with higher power rating capability.