RK73G1HTTC1002D Equivalent & Substitute Parts

Part Overview

The RK73G1HTTC1002D is a 10 kOhms ±0.5% 0.05W chip resistor in 0201 package (0603 Metric) manufactured by KOA Speer Electronics, Inc. This component is a thick film automotive-grade resistor with AEC-Q200 qualification, designed for high-reliability applications requiring tight tolerance and stable performance across extended temperature ranges.

The RK73G1HTTC1002D carries a "Not For New Designs" product status, indicating that KOA Speer Electronics has transitioned this part number to obsolescence or limited production. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support existing production requirements for systems already utilizing this component.

Substiute Parts

RK73G1HTTC1002D

KOA Speer Electronics, Inc.In Stock: 803RK73G1HTTC1002D Datasheet

Current PartRFQ

RK73G1HTTCM1002D

KOA Speer Electronics, Inc.In Stock: 1153RK73G1HTTCM1002D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RK73G1HTTC1002D is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Resistance value: 10 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 Parameters:

• Package / Case: 0201 (0603 Metric) (exact match required)
• Composition: Thick Film (exact match required)

Compliance & Certification:

• Automotive AEC-Q200 qualification (exact match required)
• RoHS3 compliance (exact match required)
• Moisture Sensitivity Level 1 (exact match required)

Substitute parts must satisfy all parameters listed above. Deviations in any electrical, mechanical, or compliance parameter disqualify a part from direct substitution.

Parameter Comparison

Engineering Selection Recommendations

The RK73G1HTTCM1002D is the direct equivalent substitute for the RK73G1HTTC1002D. Both parts are manufactured by KOA Speer Electronics, Inc., belong to the RK73G series, and satisfy identical electrical, mechanical, and compliance specifications.

The primary distinction between these parts is product status: the main part (RK73G1HTTC1002D) is designated "Not For New Designs," while the substitute (RK73G1HTTCM1002D) maintains "Active" status. This status difference reflects KOA Speer's product lifecycle management and indicates that the substitute part represents the current production equivalent.

Both parts carry AEC-Q200 automotive qualification, ROHS3 compliance, and MSL 1 rating, confirming suitability for automotive and high-reliability applications. The substitute part demonstrates higher inventory availability (1110 Pcs vs. 761 Pcs), supporting improved supply chain continuity.

For applications currently specified with RK73G1HTTC1002D, direct substitution with RK73G1HTTCM1002D is permissible without circuit redesign or performance degradation, provided that the application requirements align with the specified electrical and thermal parameters.

Frequently Asked Questions (FAQ)

Q: Can RK73G1HTTCM1002D be used as a direct replacement for RK73G1HTTC1002D?

A: Yes. Both parts are electrically and mechanically identical, with matching resistance (10 kOhms), tolerance (±0.5%), power rating (0.05W), package (0201), temperature coefficient (±50ppm/°C), operating range (-55°C ~ 155°C), and AEC-Q200 automotive qualification. The substitute part is the current active production equivalent.

Q: Why is the main part marked "Not For New Designs"?

A: "Not For New Designs" indicates that KOA Speer Electronics has transitioned this part number to end-of-life or limited production status. The RK73G1HTTCM1002D represents the active replacement within the same product family, ensuring continued availability and support for equivalent applications.

Q: Are there any package or footprint differences between these parts?

A: No. Both parts use the 0201 package (0603 Metric) with identical dimensions: 0.024" L x 0.012" W (0.60mm x 0.30mm) and maximum seated height of 0.010" (0.26mm). PCB footprints and assembly processes are interchangeable.

Q: Do both parts meet automotive compliance requirements?

A: Yes. Both RK73G1HTTC1002D and RK73G1HTTCM1002D carry AEC-Q200 qualification, ROHS3 compliance, and MSL 1 rating. They are suitable for automotive and high-reliability applications without additional qualification.

Q: What is the difference in inventory availability?

A: The substitute part (RK73G1HTTCM1002D) has higher stock availability at 1110 Pcs compared to 761 Pcs for the main part. This difference reflects the active production status of the substitute and supports improved supply chain reliability for ongoing production requirements.

Q: Can I use these parts interchangeably in existing designs?

A: Yes. Since all electrical, mechanical, and compliance parameters are identical, these parts are fully interchangeable. No circuit modifications, re-qualification, or design changes are required.