RN732BTTD5103C50 Equivalent & Substitute Parts

Part Overview

The RN732BTTD5103C50 is a 510 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, necessitating identification of active equivalent alternatives for new designs and ongoing production requirements. The part features moisture-resistant construction suitable for general industrial applications within the specified temperature range.

Substiute Parts

RN732BTTD5103C50

KOA Speer Electronics, Inc.In Stock: 972RN732BTTD5103C50 Datasheet

Current PartRFQ

RN73R2BTTD5103C50

KOA Speer Electronics, Inc.In Stock: 720RN73R2BTTD5103C50 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RN732BTTD5103C50 is determined by strict equivalence across the following parameters:

• Resistance value: 510 kOhms (exact match required)
• Tolerance: ±0.25% (exact match required)
• Package format: 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)
• Moisture resistance: Required feature
• RoHS3 compliance: Required

The substitute part RN73R2BTTD5103C50 meets all these criteria. The primary difference is an increased power rating (0.25W versus 0.125W), which represents a higher capability rating and does not restrict substitution in applications designed for the original 0.125W specification.

Parameter Comparison

Engineering Selection Recommendations

The RN73R2BTTD5103C50 is the direct substitute for the obsolete RN732BTTD5103C50. Both components are manufactured by KOA Speer Electronics, Inc. and maintain identical electrical specifications for resistance, tolerance, temperature coefficient, and operating temperature range. Both are ROHS3 compliant with MSL 1 rating.

The substitute part carries active product status, ensuring continued availability and supply chain reliability. The increased power rating of 0.25W provides enhanced thermal margin compared to the original 0.125W specification, making it suitable for all applications originally designed for the RN732BTTD5103C50. The addition of AEC-Q200 automotive qualification on the substitute part represents an enhanced quality standard without introducing incompatibility.

Frequently Asked Questions (FAQ)

Q: Can RN73R2BTTD5103C50 be used as a direct replacement for RN732BTTD5103C50?

A: Yes. Both parts share identical resistance (510 kOhms), tolerance (±0.25%), package format (1206), composition (thin film), temperature coefficient (±50ppm/°C), and operating temperature range (-55°C ~ 155°C). The substitute part's higher power rating (0.25W versus 0.125W) does not restrict its use in applications designed for the original specification.

Q: What is the significance of the increased power rating on the substitute part?

A: The 0.25W rating on RN73R2BTTD5103C50 indicates higher thermal dissipation capability. This represents a design improvement and does not create incompatibility with circuits originally specified for 0.125W operation.

Q: Are both parts RoHS compliant?

A: Yes. Both RN732BTTD5103C50 and RN73R2BTTD5103C50 are ROHS3 compliant with identical moisture sensitivity level (MSL 1, Unlimited).

Q: What does the AEC-Q200 rating on the substitute part indicate?

A: AEC-Q200 is an automotive qualification standard. The substitute part meets this automotive-grade standard, which represents an additional quality certification beyond the original part specification.

Q: Are the physical dimensions identical?

A: Yes. Both parts are packaged in 1206 (3216 Metric) format with identical dimensions: 0.126" L x 0.063" W (3.20mm x 1.60mm) and maximum seated height of 0.028" (0.70mm).