Equivalent & Substitute Parts for RK73H1HTTC3571F

Part Overview

The RK73H1HTTC3571F is a 3.57 kOhm ±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The RK73H1HTTC3571F carries a "Not For New Designs" product status, indicating it has been superseded in the manufacturer's product line.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 ensure design continuity, maintain supply chain flexibility, and support legacy system maintenance or redesign initiatives.

Substiute Parts

RK73H1HTTC3571F

KOA Speer Electronics, Inc.In Stock: 60201RK73H1HTTC3571F Datasheet

Current PartRFQ

RK73H1HTTCM3571F

KOA Speer Electronics, Inc.In Stock: 922RK73H1HTTCM3571F Datasheet

MFR RecommendedRFQ

AC0201FR-073K57L

YAGEOIn Stock: 1082AC0201FR-073K57L Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RK73H1HTTC3571F are qualified based on strict electrical and mechanical parameter matching:

Qualifying Criteria:

• Resistance value: 3.57 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 0.05W / 1/20W (exact match required)
• Package: 0201 (0603 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Temperature coefficient: ±200ppm/°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)
• Moisture sensitivity: MSL 1 (exact match required)

Substitute parts must maintain identical electrical performance characteristics and physical dimensions to ensure direct replacement capability without circuit redesign or PCB layout modification.

Parameter Comparison

Engineering Selection Recommendations

RK73H1HTTCM3571F (KOA Speer Electronics, Inc. - MFR Recommended Substitute)

This part represents the manufacturer-recommended successor to the RK73H1HTTC3571F. It maintains identical electrical specifications and physical dimensions while carrying Active product status. The RK73H1HTTCM3571F is the preferred selection for new procurement and design continuity applications. Current inventory availability is 897 pieces.

AC0201FR-073K57L (YAGEO - Direct Substitute)

This YAGEO component provides direct electrical and mechanical equivalence to the RK73H1HTTC3571F. The AC0201FR-073K57L meets all specified parameters including AEC-Q200 automotive rating, moisture resistance, and ROHS3 compliance. This part carries Active product status and offers an alternative sourcing option from a different manufacturer. Current inventory availability is 1063 pieces.

Both substitute parts satisfy all electrical performance requirements, dimensional specifications, and automotive compliance certifications necessary for direct replacement in existing designs.

Frequently Asked Questions (FAQ)

Q: Can RK73H1HTTCM3571F be used as a direct replacement for RK73H1HTTC3571F?

A: Yes. The RK73H1HTTCM3571F is the manufacturer-recommended substitute and maintains identical electrical specifications (3.57 kOhms ±1%, 0.05W), physical dimensions (0201 package), temperature characteristics (±200ppm/°C, -55°C ~ 155°C), and AEC-Q200 automotive compliance. No circuit redesign or PCB layout modification is required.

Q: What is the difference between RK73H1HTTC3571F and RK73H1HTTCM3571F?

A: The primary difference is product status. RK73H1HTTC3571F is marked "Not For New Designs," while RK73H1HTTCM3571F carries Active status. Both parts are electrically and mechanically identical. The RK73H1HTTCM3571F represents the current production version from KOA Speer Electronics, Inc.

Q: Can AC0201FR-073K57L replace RK73H1HTTC3571F in automotive applications?

A: Yes. The AC0201FR-073K57L from YAGEO meets all required specifications including AEC-Q200 automotive rating, identical resistance value (3.57 kOhms ±1%), power rating (0.05W), package format (0201), temperature range (-55°C ~ 155°C), and moisture resistance. Direct substitution is electrically and mechanically compatible.

Q: Are there any packaging differences between these substitute parts?

A: All three parts use identical 0201 (0603 Metric) package format with matching physical dimensions (0.024" L x 0.012" W / 0.60mm x 0.30mm) and maximum seated height (0.010" / 0.26mm). Packaging compatibility is confirmed for direct PCB placement.

Q: What is the significance of AEC-Q200 rating for these resistors?

A: AEC-Q200 certification indicates the component meets automotive industry reliability and quality standards established by the Automotive Electronics Council. All three parts carry this rating, confirming suitability for automotive circuit applications requiring enhanced reliability and environmental stress testing compliance.

Q: Do these parts require different moisture handling procedures?

A: All three parts carry MSL 1 (Unlimited) moisture sensitivity level rating, indicating unlimited shelf life without moisture control requirements. Identical moisture handling procedures apply across all substitute options.