RK73B1HTTC561G Equivalent & Substitute Parts

Part Overview

The RK73B1HTTC561G is a 560 Ohm ±2% thick film chip resistor rated at 0.05W (1/20W) in 0201 package format (0.60mm x 0.30mm metric). This component is manufactured by KOA Speer Electronics, Inc. and meets automotive AEC-Q200 qualification standards. The part is currently classified as "Not For New Designs," indicating it has been superseded in the product lifecycle. Identifying equivalent substitute parts is necessary for ongoing support of existing designs, maintenance applications, and inventory management where this legacy component remains in use.

Substiute Parts

RK73B1HTTC561G

KOA Speer Electronics, Inc.In Stock: 1007RK73B1HTTC561G Datasheet

Current PartRFQ

RK73B1HTTCM561G

KOA Speer Electronics, Inc.In Stock: 864RK73B1HTTCM561G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RK73B1HTTC561G is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Resistance value: 560 Ohms (exact match required)
• Tolerance: ±2% (exact match required)
• Power rating: 0.05W / 1/20W (exact match required)
• Temperature coefficient: ±200ppm/°C (exact match required)
• Operating temperature range: -55°C ~ 155°C (exact match required)

Mechanical Parameters:

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

Compliance & Certification:

• Automotive AEC-Q200 qualification (required for automotive applications)
• RoHS3 compliance (required for regulatory adherence)
• Moisture Sensitivity Level 1 (required for storage and handling compatibility)

Only parts meeting all these criteria across electrical, mechanical, and compliance dimensions are classified as direct substitutes. Deviations in any parameter disqualify a part from substitution consideration.

Parameter Comparison

Engineering Selection Recommendations

The RK73B1HTTCM561G serves as the direct substitute for the RK73B1HTTC561G. Both parts are manufactured by KOA Speer Electronics, Inc. within the RK73B series and maintain identical electrical and mechanical specifications across all critical parameters.

The primary distinction between these parts is product lifecycle status: the RK73B1HTTC561G is designated "Not For New Designs," while the RK73B1HTTCM561G carries "Active" status. This indicates that RK73B1HTTCM561G represents the current production equivalent and is the recommended selection for ongoing applications requiring this 560 Ohm, ±2%, 0.05W thick film resistor in 0201 package format.

Both parts maintain full compliance with AEC-Q200 automotive qualification, ROHS3 regulatory requirements, and identical thermal and environmental operating parameters. Selection between these parts should be based on design phase: legacy designs currently using RK73B1HTTC561G may transition to RK73B1HTTCM561G for continued supply assurance, while new designs should specify RK73B1HTTCM561G directly.

Frequently Asked Questions (FAQ)

Q: Can RK73B1HTTCM561G be used as a direct replacement for RK73B1HTTC561G in existing assemblies?

A: Yes. Both parts are electrically and mechanically identical across all specified parameters: 560 Ohm resistance, ±2% tolerance, 0.05W power rating, 0201 package, ±200ppm/°C temperature coefficient, and -55°C ~ 155°C operating range. Both maintain AEC-Q200 automotive qualification and ROHS3 compliance. No circuit redesign or board layout modification is required.

Q: What is the significance of the "Not For New Designs" status on RK73B1HTTC561G?

A: This designation indicates the part has been superseded in the manufacturer's product lifecycle. While existing inventory remains available and the part continues to function identically to its active equivalent, new design projects should specify RK73B1HTTCM561G to ensure long-term supply continuity and access to current manufacturing processes.

Q: Are there any differences in packaging or handling between these two parts?

A: Both parts share identical physical dimensions (0.024" L x 0.012" W / 0.60mm x 0.30mm) and maximum seated height (0.010" / 0.26mm). Both carry Moisture Sensitivity Level 1 (Unlimited), requiring identical storage and handling protocols. No special precautions are needed when transitioning between these parts.

Q: Do both parts meet automotive qualification requirements?

A: Yes. Both RK73B1HTTC561G and RK73B1HTTCM561G carry AEC-Q200 automotive qualification and are suitable for automotive applications requiring this certification level.

Q: What compliance certifications apply to both parts?

A: Both parts are ROHS3 compliant and REACH unaffected. Both carry ECCN classification EAR99 and HTSUS code 8533.21.0030.