Equivalent & Substitute Parts for RK73G1HTTC1601F

Part Overview

The RK73G1HTTC1601F is a 1.6 kOhms ±1% chip resistor in 0201 package (0603 Metric) rated at 0.05W (1/20W) power dissipation. This thick film resistor is qualified to AEC-Q200 automotive standards and operates across -55°C to 155°C. The part is currently classified as "Not For New Designs," indicating it has been superseded in the manufacturer's product line. Identifying equivalent substitute parts ensures design continuity and maintains compliance with automotive qualification requirements for applications requiring this specific resistance value and package configuration.

Substiute Parts

RK73G1HTTC1601F

KOA Speer Electronics, Inc.In Stock: 901RK73G1HTTC1601F Datasheet

Current PartRFQ

RK73G1HTTCM1601F

KOA Speer Electronics, Inc.In Stock: 1190RK73G1HTTCM1601F Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RK73G1HTTC1601F is determined by strict equivalence across the following parameters:

Critical Matching Parameters:

• Resistance value: 1.6 kOhms (exact match required)
• Tolerance: ±1% (defines acceptable circuit performance)
• Power rating: 0.05W / 1/20W (thermal design constraint)
• Package: 0201 (0603 Metric) (PCB layout compatibility)
• Operating temperature range: -55°C ~ 155°C (environmental specification)
• Automotive qualification: AEC-Q200 (mandatory for automotive applications)

Supporting Parameters:

• Composition: Thick Film (electrical behavior consistency)
• Temperature coefficient: ±50ppm/°C (temperature stability)
• RoHS compliance: ROHS3 (regulatory requirement)

Substitute parts must satisfy all critical parameters without exception. The primary distinction between the main part and its substitute relates to product lifecycle status and packaging configuration, not electrical or mechanical specifications.

Parameter Comparison

Engineering Selection Recommendations

RK73G1HTTCM1601F is the recommended substitute for RK73G1HTTC1601F based on the following engineering criteria:

Electrical Equivalence: All electrical parameters are identical, including resistance value, tolerance, power rating, temperature coefficient, and operating temperature range. The parts are functionally interchangeable in circuit applications.

Mechanical Compatibility: Package dimensions, footprint, and termination configuration are identical. Direct PCB layout substitution is possible without design modification.

Automotive Compliance: Both parts maintain AEC-Q200 qualification, satisfying automotive reliability and qualification requirements.

Product Lifecycle Status: The substitute part (RK73G1HTTCM1601F) carries "Active" product status, indicating ongoing manufacturer support and availability. The main part is classified "Not For New Designs," making the substitute the appropriate choice for current and future production.

Regulatory Compliance: Both parts are ROHS3 compliant and REACH unaffected, maintaining regulatory alignment across jurisdictions.

Inventory Availability: The substitute part demonstrates higher current inventory levels (1164 Pcs vs. 808 Pcs), supporting supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can RK73G1HTTCM1601F be used as a direct replacement for RK73G1HTTC1601F?

A: Yes. All electrical, mechanical, and thermal specifications are identical. The parts are functionally equivalent and can be substituted without circuit redesign or PCB layout modification.

Q: What is the difference between these two part numbers?

A: The primary difference is product lifecycle status. RK73G1HTTC1601F is classified "Not For New Designs," while RK73G1HTTCM1601F is "Active." The "M" designation in the substitute part number indicates a manufacturing variant, but electrical and mechanical performance remain identical.

Q: Are both parts qualified to the same automotive standards?

A: Yes. Both parts are AEC-Q200 qualified, meeting automotive reliability and qualification requirements for -55°C to 155°C operation.

Q: Will the substitute part fit the same PCB footprint?

A: Yes. 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 (0.010" / 0.26mm). No PCB layout changes are required.

Q: Are there any compliance or regulatory differences?

A: No. Both parts are ROHS3 compliant and REACH unaffected. Regulatory status is identical.

Q: Which part should be specified for new designs?

A: RK73G1HTTCM1601F should be specified for new designs, as it carries "Active" product status and ensures long-term manufacturer support and availability.

Q: Is the tolerance specification identical?

A: Yes. Both parts are rated at ±1% tolerance, ensuring equivalent circuit accuracy and performance.

Q: What is the moisture sensitivity level for both parts?

A: Both parts are rated MSL 1 (Unlimited), indicating no moisture sensitivity restrictions for storage or handling.