RN731JTTD8760F50 Equivalent & Substitute Parts

Part Overview

The RN731JTTD8760F50 is a 876 Ohm ±1% thin film chip resistor manufactured by KOA Speer Electronics, Inc. in 0603 (1608 Metric) package format with 0.063W (1/16W) power rating. This component features moisture-resistant construction and operates across the temperature range of -55°C to 155°C.

The RN731JTTD8760F50 is classified as obsolete. Locating equivalent or substitute components becomes necessary when original stock is depleted or when design requirements permit the use of active production alternatives that maintain electrical and mechanical compatibility.

Substiute Parts

RN731JTTD8760F50

KOA Speer Electronics, Inc.In Stock: 1064RN731JTTD8760F50 Datasheet

Current PartRFQ

RN73R1JTTD8760F50

KOA Speer Electronics, Inc.In Stock: 882RN73R1JTTD8760F50 Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RN731JTTD8760F50 is permissible when the replacement component maintains the following critical parameters:

Electrical Parameters (Must Match):

• Resistance value: 876 Ohms
• Tolerance: ±1%
• Temperature Coefficient: ±50ppm/°C
• Operating Temperature Range: -55°C ~ 155°C

Mechanical Parameters (Must Match):

• Package / Case: 0603 (1608 Metric)
• Number of Terminations: 2
• Composition: Thin Film
• Moisture Resistance: Required

Compliance Parameters (Must Match or Exceed):

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 1 (Unlimited)

Power Rating (Must Equal or Exceed):

• Minimum acceptable power rating: 0.063W (1/16W)

The substitute part RN73R1JTTD8760F50 satisfies all critical parameters with an increased power rating of 0.1W (1/10W), which is acceptable for direct substitution in applications designed for the original 0.063W component.

Parameter Comparison

Engineering Selection Recommendations

The RN73R1JTTD8760F50 is a direct substitute for the RN731JTTD8760F50 based on the following engineering criteria:

Electrical Compatibility: All electrical parameters including resistance value, tolerance, temperature coefficient, and operating temperature range are identical between the main part and substitute. The substitute's increased power rating of 0.1W (1/10W) compared to the original 0.063W (1/16W) provides additional thermal margin without affecting circuit performance in applications designed for the original component.

Mechanical Compatibility: Both components utilize identical 0603 (1608 Metric) package dimensions, termination configuration, and thin film composition. Physical footprint and PCB layout requirements remain unchanged.

Compliance and Certification: Both components maintain ROHS3 compliance and Moisture Sensitivity Level 1 (Unlimited) rating. The substitute part carries AEC-Q200 automotive qualification, which represents an additional quality assurance certification not present in the original part.

Product Status: The substitute part is in active production status, ensuring long-term availability and supply chain continuity compared to the obsolete status of the original component.

Frequently Asked Questions (FAQ)

Q: Can the RN73R1JTTD8760F50 be used as a direct replacement for the RN731JTTD8760F50 in existing designs?

A: Yes. The substitute part maintains identical electrical and mechanical parameters. The increased power rating (0.1W versus 0.063W) is acceptable for direct substitution in circuits designed for the original component, as it provides additional thermal capacity without altering electrical behavior.

Q: What is the significance of the power rating difference between the two parts?

A: The RN73R1JTTD8760F50 has a higher power dissipation capability (0.1W) compared to the RN731JTTD8760F50 (0.063W). In applications where the original part operates below its rated power, the substitute will operate with lower temperature rise, extending component life and improving reliability margins.

Q: Are there packaging differences between these two parts?

A: Both components are supplied in 0603 (1608 Metric) package format. The main part is available in standard packaging, while the substitute is supplied in Tape & Reel (TR) format. This difference affects procurement and assembly processes but does not impact electrical or mechanical compatibility.

Q: Does the AEC-Q200 certification on the substitute part affect its use in non-automotive applications?

A: No. AEC-Q200 certification represents an additional quality and reliability standard. Components meeting automotive standards are suitable for use in general industrial and commercial applications without restriction.

Q: Are the moisture resistance characteristics identical between the two parts?

A: Yes. Both components feature moisture-resistant thin film construction and carry identical Moisture Sensitivity Level 1 (Unlimited) ratings, indicating equivalent moisture handling and storage requirements.

Q: What is the basis for determining substitution compatibility?

A: Substitution compatibility is determined by matching critical electrical parameters (resistance, tolerance, temperature coefficient, operating temperature range), mechanical parameters (package, dimensions, terminations), and compliance certifications (RoHS, MSL). The substitute must equal or exceed the original part's specifications in all categories.