Equivalent & Substitute Parts for RK73G1HTTC2001F

Part Overview

The RK73G1HTTC2001F is a 2 kOhms ±1% 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 automotive-level performance standards.

The main part number RK73G1HTTC2001F carries a product status of "Not For New Designs," indicating it has been superseded in the manufacturer's active product line. Identifying equivalent substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and transition to currently supported components while preserving electrical and mechanical compatibility.

Substiute Parts

RK73G1HTTC2001F

KOA Speer Electronics, Inc.In Stock: 686RK73G1HTTC2001F Datasheet

Current PartRFQ

RK73G1HTTCM2001F

KOA Speer Electronics, Inc.In Stock: 838RK73G1HTTCM2001F Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RK73G1HTTC2001F is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

• Resistance value: 2 kOhms (exact match required)
• Tolerance: ±1% (equal or tighter tolerance acceptable)
• Power rating: 0.05W minimum (equal or higher acceptable)
• Package: 0201 (0603 Metric) (exact match required for PCB compatibility)
• Composition: Thick Film (determines electrical characteristics)
• Temperature coefficient: ±50ppm/°C (equal or better acceptable)
• Operating temperature range: -55°C ~ 155°C minimum (equal or wider acceptable)
• Automotive rating: AEC-Q200 (mandatory for automotive applications)
• RoHS compliance: ROHS3 Compliant (regulatory requirement)

Substitute parts must satisfy all mandatory parameters simultaneously. Parts that differ in any critical parameter are not electrically or mechanically compatible and cannot be used as direct replacements.

Parameter Comparison

Engineering Selection Recommendations

RK73G1HTTCM2001F is the direct equivalent substitute for RK73G1HTTC2001F.

Selection Basis:

The RK73G1HTTCM2001F maintains complete electrical and mechanical equivalence with the original part across all critical parameters. Both components are manufactured by KOA Speer Electronics, Inc., belong to the same RK73G series, and share identical specifications for resistance value, tolerance, power rating, package dimensions, and automotive qualification.

The primary distinction is product status: RK73G1HTTC2001F is designated "Not For New Designs," while RK73G1HTTCM2001F carries "Active" status. This indicates that RK73G1HTTCM2001F is the current production equivalent and the recommended selection for new designs and ongoing supply requirements.

Both parts satisfy AEC-Q200 automotive reliability standards, ROHS3 environmental compliance, and MSL 1 moisture sensitivity classification. Inventory availability is confirmed for both components, with RK73G1HTTCM2001F showing higher stock levels (778 Pcs vs. 675 Pcs).

Frequently Asked Questions (FAQ)

Q: Can RK73G1HTTCM2001F be used as a direct replacement for RK73G1HTTC2001F in existing designs?

A: Yes. RK73G1HTTCM2001F is electrically and mechanically identical to RK73G1HTTC2001F. All electrical parameters, package dimensions, and automotive certifications match exactly. Direct substitution is valid for both new and existing circuit implementations.

Q: Why is RK73G1HTTC2001F marked "Not For New Designs"?

A: This designation indicates the part has been superseded in the manufacturer's active product line. KOA Speer Electronics recommends transitioning to RK73G1HTTCM2001F for new designs to ensure long-term supply continuity and access to current manufacturing support.

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

A: Both parts use identical 0201 (0603 Metric) package specifications. Physical dimensions, termination count, and PCB footprint are identical. No layout or assembly modifications are required when substituting between these parts.

Q: Do both parts meet automotive qualification requirements?

A: Yes. Both RK73G1HTTC2001F and RK73G1HTTCM2001F carry AEC-Q200 automotive qualification. They are suitable for automotive applications requiring high-reliability component standards.

Q: What is the significance of the temperature coefficient specification?

A: The ±50ppm/°C temperature coefficient indicates the maximum resistance change per degree Celsius across the -55°C to 155°C operating range. Both parts share identical temperature coefficient specifications, ensuring equivalent performance stability across the full automotive temperature range.

Q: Are there any compliance or regulatory differences between these parts?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical environmental and regulatory certifications. MSL 1 (Unlimited) moisture sensitivity classification applies to both components.

Q: Which part should be selected for new procurement?

A: RK73G1HTTCM2001F should be selected for new procurement and design implementations. Its "Active" product status ensures ongoing manufacturer support, current production availability, and supply chain reliability.