Equivalent & Substitute Parts for RK73H1HTTC1601F

Part Overview

The RK73H1HTTC1601F is a 1.6 kOhms ±1% thick film chip resistor manufactured by KOA Speer Electronics, Inc. in 0201 package format with 0.05W power rating. This component is rated for automotive applications under AEC-Q200 standard and features moisture-resistant construction suitable for harsh operating environments.

The RK73H1HTTC1601F carries a "Not For New Designs" product status, indicating it has been superseded in the manufacturer's product line. Identifying equivalent and substitute parts is necessary to support existing designs, legacy system maintenance, and procurement continuity.

Substiute Parts

RK73H1HTTC1601F

KOA Speer Electronics, Inc.In Stock: 19008RK73H1HTTC1601F Datasheet

Current PartRFQ

RK73H1HTTCM1601F

KOA Speer Electronics, Inc.In Stock: 1024RK73H1HTTCM1601F Datasheet

MFR RecommendedRFQ

AC0201FR-071K6L

YAGEOIn Stock: 892AC0201FR-071K6L Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RK73H1HTTC1601F is determined by strict equivalence across the following parameters:

Critical Matching Parameters:

• Resistance value: 1.6 kOhms
• Tolerance: ±1%
• Power rating: 0.05W (1/20W)
• Package: 0201 (0603 Metric)
• Composition: Thick Film
• Temperature coefficient: ±200ppm/°C
• Operating temperature range: -55°C ~ 155°C
• Automotive compliance: AEC-Q200
• Moisture resistance: Required
• RoHS compliance: ROHS3 Compliant
• MSL rating: 1 (Unlimited)

All substitute parts listed below meet these criteria without exception. Substitution is valid only when all parameters align with the original specification.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: RK73H1HTTCM1601F (KOA Speer Electronics)

The RK73H1HTTCM1601F is the manufacturer-recommended successor to the RK73H1HTTC1601F. Both components are from the same RK73H series and share identical electrical and mechanical specifications. The primary distinction is product status: RK73H1HTTCM1601F carries Active status, ensuring continued availability and manufacturing support. This part is the preferred choice for design continuity within the KOA product ecosystem.

Note: The RK73H1HTTCM1601F specification does not explicitly list moisture resistance in the provided data, whereas the original RK73H1HTTC1601F specifies moisture-resistant construction. Verify moisture resistance requirements with the manufacturer before final selection if moisture protection is critical to the application.

Alternative Substitute: AC0201FR-071K6L (YAGEO)

The AC0201FR-071K6L from YAGEO provides full electrical and mechanical equivalence to the RK73H1HTTC1601F. This component maintains all critical parameters including 1.6 kOhms resistance, ±1% tolerance, 0.05W power rating, 0201 package, AEC-Q200 automotive rating, moisture resistance, and ROHS3 compliance. The AC0201FR-071K6L carries Active product status and is available in Tape & Reel packaging. This part is suitable for applications requiring cross-manufacturer sourcing or supply chain diversification.

Selection Basis:

• Both substitutes maintain full compliance with AEC-Q200 automotive standards
• Both achieve ROHS3 compliance and MSL 1 rating
• Both support the complete operating temperature range of -55°C to 155°C
• Both are available in active production status, ensuring long-term procurement viability

Frequently Asked Questions (FAQ)

Q: Can RK73H1HTTCM1601F replace RK73H1HTTC1601F in all applications?

A: The RK73H1HTTCM1601F matches all electrical and mechanical specifications of the original part. However, the provided data for RK73H1HTTCM1601F does not explicitly confirm moisture-resistant construction, while the original specifies this feature. If moisture resistance is a design requirement, confirm this specification with KOA Speer Electronics before substitution.

Q: Is AC0201FR-071K6L a direct equivalent to RK73H1HTTC1601F?

A: Yes. The AC0201FR-071K6L meets all critical parameters: 1.6 kOhms ±1%, 0.05W power rating, 0201 package, ±200ppm/°C temperature coefficient, -55°C to 155°C operating range, AEC-Q200 rating, moisture resistance, ROHS3 compliance, and MSL 1 rating. This part is a valid direct substitute from an alternative manufacturer.

Q: What is the difference between 0201 and 0603 Metric designations?

A: These designations refer to the same physical package size. 0201 is the imperial designation (0.024" L x 0.012" W), while 0603 Metric is the metric equivalent (0.60mm x 0.30mm). All three parts listed use this identical package format and are mechanically interchangeable.

Q: Why is RK73H1HTTC1601F marked "Not For New Designs"?

A: This status indicates the part has been superseded by newer alternatives in the manufacturer's product line. For new design work, KOA recommends using RK73H1HTTCM1601F. However, the original part remains available for legacy system support and maintenance applications.

Q: Are there packaging differences between the substitute parts?

A: RK73H1HTTC1601F and AC0201FR-071K6L are both supplied in Tape & Reel (TR) format. RK73H1HTTCM1601F packaging format is not specified in the provided data. Confirm packaging requirements with the supplier if reel specifications are critical to your procurement process.

Q: Do all three parts meet automotive AEC-Q200 requirements?

A: Yes. All three parts carry AEC-Q200 automotive qualification. This certification confirms suitability for automotive applications within the specified operating temperature range of -55°C to 155°C.

Q: What is MSL 1 rating and why does it matter?

A: MSL (Moisture Sensitivity Level) 1 indicates unlimited shelf life without moisture bake-out requirements. All three parts carry this rating, meaning they can be stored and handled under standard conditions without special moisture control procedures.