RK73G1HTTC3601F Equivalent & Substitute Parts

Part Overview

The RK73G1HTTC3601F is a 3.6 kOhms ±1% chip resistor manufactured by KOA Speer Electronics, Inc., rated at 0.05W (1/20W) in a 0201 (0603 Metric) package. This component is designed for automotive applications and meets AEC-Q200 qualification standards. The part is currently classified as "Not For New Designs," which necessitates identification of active equivalent alternatives that maintain identical electrical and mechanical specifications for ongoing production and maintenance applications.

Substiute Parts

RK73G1HTTC3601F

KOA Speer Electronics, Inc.In Stock: 1243RK73G1HTTC3601F Datasheet

Current PartRFQ

RK73G1HTTCM3601F

KOA Speer Electronics, Inc.In Stock: 1213RK73G1HTTCM3601F Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RK73G1HTTC3601F is determined by strict equivalence across the following critical parameters:

• Resistance Value: 3.6 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Power Rating: 0.05W / 1/20W (exact match required)
• Package Type: 0201 (0603 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Temperature Coefficient: ±50ppm/°C (exact match required)
• Operating Temperature Range: -55°C ~ 155°C (exact match required)
• Automotive Compliance: AEC-Q200 (exact match required)
• RoHS Compliance: ROHS3 Compliant (exact match required)

The substitute part RK73G1HTTCM3601F meets all these criteria and is manufactured by the same supplier (KOA Speer Electronics, Inc.) within the same RK73G series. The primary distinction is the product status transition from "Not For New Designs" to "Active," making it the appropriate selection for current applications.

Parameter Comparison

Engineering Selection Recommendations

The RK73G1HTTCM3601F is the direct equivalent substitute for the RK73G1HTTC3601F. Selection of the substitute part is based on the following engineering criteria:

Product Status: The main part RK73G1HTTC3601F carries a "Not For New Designs" designation, indicating that KOA Speer Electronics, Inc. has transitioned this component to end-of-life status. The substitute RK73G1HTTCM3601F maintains "Active" product status, ensuring continued availability and manufacturer support.

Compliance and Certifications: Both parts maintain identical AEC-Q200 automotive qualification, ROHS3 compliance, and REACH unaffected status. No compliance gaps exist between the main part and substitute.

Electrical and Mechanical Equivalence: All critical parameters—resistance value, tolerance, power rating, temperature coefficient, operating temperature range, and package dimensions—are identical. The parts are electrically and mechanically interchangeable.

Supply Chain Continuity: The substitute part is available in current inventory (1136 Pcs), whereas the main part is classified as "Not For New Designs." For applications requiring ongoing component procurement, the substitute ensures supply chain continuity without design modification.

Frequently Asked Questions (FAQ)

Q: Can RK73G1HTTCM3601F be used as a direct replacement for RK73G1HTTC3601F in existing designs?

A: Yes. The substitute part is electrically and mechanically identical across all specified parameters. No circuit modifications or PCB layout changes are required. Both parts are manufactured by KOA Speer Electronics, Inc., within the same RK73G series and meet identical AEC-Q200 automotive standards.

Q: What is the significance of the "Not For New Designs" status on the main part?

A: This designation indicates that the manufacturer has discontinued active production and support for the RK73G1HTTC3601F. While existing inventory may remain available, the part is no longer recommended for new product development. The substitute RK73G1HTTCM3601F, with "Active" status, is the appropriate selection for current and future applications.

Q: Are the package dimensions identical between the two parts?

A: Yes. Both parts use the 0201 (0603 Metric) package with identical dimensions of 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 remain unchanged.

Q: Do both parts meet automotive qualification requirements?

A: Yes. Both the RK73G1HTTC3601F and RK73G1HTTCM3601F are AEC-Q200 qualified, meeting automotive industry reliability and performance standards. Both are ROHS3 compliant and REACH unaffected.

Q: What is the temperature coefficient specification, and is it identical for both parts?

A: Both parts have a temperature coefficient of ±50ppm/°C and operate across the identical temperature range of -55°C to 155°C. This ensures consistent performance across automotive environmental conditions.

Q: Is there any difference in moisture sensitivity between the two parts?

A: No. Both parts have Moisture Sensitivity Level (MSL) 1, classified as "Unlimited," indicating no moisture-related storage or handling restrictions.