RK73G1HTTC7501D Equivalent & Substitute Parts

Part Overview

The RK73G1HTTC7501D is a 7.5 kOhms ±0.5% chip resistor manufactured by KOA Speer Electronics, Inc., designed for automotive applications with AEC-Q200 qualification. This 0201 (0603 Metric) thick film resistor delivers 0.05W power rating in a compact surface-mount package suitable for high-reliability automotive circuits.

The RK73G1HTTC7501D carries a "Not For New Designs" product status, indicating that KOA Speer Electronics has transitioned this part to end-of-life. Identifying equivalent substitute parts with active production status ensures design continuity, supply chain reliability, and compliance with current manufacturing standards.

Substiute Parts

RK73G1HTTC7501D

KOA Speer Electronics, Inc.In Stock: 1003RK73G1HTTC7501D Datasheet

Current PartRFQ

RK73G1HTTCM7501D

KOA Speer Electronics, Inc.In Stock: 866RK73G1HTTCM7501D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RK73G1HTTC7501D is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Resistance value: 7.5 kOhms (exact match required)
• Tolerance: ±0.5% (exact match required)
• Power rating: 0.05W / 1/20W (exact match required)
• Temperature coefficient: ±50ppm/°C (exact match required)
• Operating temperature range: -55°C ~ 155°C (exact match required)

Mechanical & Package Parameters:

• Package type: 0201 (0603 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Number of terminations: 2 (exact match required)

Compliance & Certification Parameters:

• Automotive rating: AEC-Q200 (exact match required)
• RoHS status: ROHS3 Compliant (exact match required)
• Moisture sensitivity level: 1 (Unlimited) (exact match required)

Substitute parts must maintain identical electrical performance, physical dimensions, and automotive qualification to ensure direct interchangeability in existing circuit designs without re-qualification or design modification.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: RK73G1HTTCM7501D

The RK73G1HTTCM7501D is the direct equivalent substitute for the RK73G1HTTC7501D. Both parts are manufactured by KOA Speer Electronics, Inc., within the RK73G series and maintain identical electrical, mechanical, and thermal specifications.

The RK73G1HTTCM7501D holds "Active" product status, indicating current production and long-term availability, whereas the RK73G1HTTC7501D is designated "Not For New Designs." This status transition reflects KOA Speer Electronics' product lifecycle management and does not indicate functional differences between the two parts.

Both parts satisfy identical compliance requirements:

• AEC-Q200 automotive qualification
• ROHS3 compliance
• Moisture Sensitivity Level 1 (Unlimited)
• REACH Unaffected status
• EAR99 export classification

The RK73G1HTTCM7501D is suitable for direct substitution in all applications currently using the RK73G1HTTC7501D without circuit redesign, re-layout, or re-qualification. The parts are pin-compatible, footprint-compatible, and electrically interchangeable.

Frequently Asked Questions (FAQ)

Q: Can the RK73G1HTTCM7501D replace the RK73G1HTTC7501D in existing designs?

A: Yes. The RK73G1HTTCM7501D is a direct equivalent substitute. All electrical parameters (resistance, tolerance, power rating, temperature coefficient), mechanical dimensions (0201 package), and automotive certifications (AEC-Q200) are identical. No design changes are required.

Q: What is the difference between RK73G1HTTC7501D and RK73G1HTTCM7501D?

A: The parts are electrically and mechanically identical. The primary difference is product status: RK73G1HTTC7501D is "Not For New Designs," while RK73G1HTTCM7501D is "Active." The suffix variation in the part number reflects KOA Speer Electronics' internal product lifecycle designation.

Q: Are both parts AEC-Q200 qualified?

A: Yes. Both the RK73G1HTTC7501D and RK73G1HTTCM7501D carry AEC-Q200 automotive qualification, confirming suitability for automotive applications requiring high reliability.

Q: What is the 0201 package dimension?

A: The 0201 package (0603 Metric) measures 0.024" length × 0.012" width (0.60mm × 0.30mm) with a maximum seated height of 0.010" (0.26mm). This is the industry-standard 0201 surface-mount resistor footprint.

Q: Is the RK73G1HTTCM7501D available in the same packaging format?

A: The RK73G1HTTC7501D is supplied in Tape & Reel (TR) packaging. The RK73G1HTTCM7501D packaging format is not specified in the provided data; however, both parts are identical 0201 package components and are compatible with standard surface-mount assembly equipment.

Q: What is the tolerance specification, and why is it important?

A: Both parts feature ±0.5% tolerance on the 7.5 kOhms resistance value. This tight tolerance ensures precise circuit performance in applications requiring accurate resistor values, such as precision analog circuits, sensor interfaces, and signal conditioning networks.

Q: Are both parts RoHS compliant?

A: Yes. Both the RK73G1HTTC7501D and RK73G1HTTCM7501D are ROHS3 compliant, meeting European Union Restriction of Hazardous Substances regulations.

Q: What is the operating temperature range?

A: Both parts operate across -55°C to 155°C, with a temperature coefficient of ±50ppm/°C. This wide temperature range supports automotive applications from cold-start conditions to high-temperature engine compartment environments.