Equivalent & Substitute Parts for RK73H1HTTC17R4F

Part Overview

The RK73H1HTTC17R4F is a 17.4 Ohm ±1% thick film chip resistor manufactured by KOA Speer Electronics, Inc., designed for 0.05W (1/20W) applications in the 0201 (0603 Metric) package format. This component is rated for automotive applications under AEC-Q200 and features moisture-resistant construction with an operating temperature range of -55°C to 155°C.

The RK73H1HTTC17R4F carries a product status of "Not For New Designs," indicating that KOA Speer Electronics has transitioned this part to end-of-life status. Engineers and procurement specialists require equivalent substitute parts to maintain design continuity and ensure component availability for ongoing production, maintenance, and new development initiatives.

Substiute Parts

RK73H1HTTC17R4F

KOA Speer Electronics, Inc.In Stock: 698RK73H1HTTC17R4F Datasheet

Current PartRFQ

RK73H1HTTCM17R4F

KOA Speer Electronics, Inc.In Stock: 782RK73H1HTTCM17R4F Datasheet

MFR RecommendedRFQ

AC0201FR-0717R4L

YAGEOIn Stock: 19755AC0201FR-0717R4L Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RK73H1HTTC17R4F are qualified based on strict electrical and mechanical parameter matching. The following criteria determine substitution eligibility:

Electrical Parameters:

• Resistance value: 17.4 Ohms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 0.05W / 1/20W (exact match required)
• Temperature coefficient: ±200ppm/°C (exact match required)
• Operating temperature range: -55°C to 155°C (exact match required)

Mechanical Parameters:

• Package / Case: 0201 (0603 Metric) (exact match required)
• Composition: Thick Film (exact match required)
• Number of terminations: 2 (exact match required)
• Physical dimensions: 0.024" L x 0.012" W (0.60mm x 0.30mm) (exact match required)
• Height - Seated (Max): 0.010" (0.26mm) (exact match required)

Compliance & Certification:

• Automotive AEC-Q200 rating (required for automotive applications)
• RoHS3 compliance (required for regulatory conformance)
• Moisture Sensitivity Level 1 (Unlimited) (required for storage and handling)

Substitute parts must satisfy all electrical, mechanical, and compliance parameters without exception. Parts meeting these criteria are functionally and physically interchangeable with the RK73H1HTTC17R4F in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

RK73H1HTTCM17R4F (KOA Speer Electronics, Inc.)

The RK73H1HTTCM17R4F is the manufacturer-recommended substitute from KOA Speer Electronics, Inc. This part maintains active product status and carries identical electrical and mechanical specifications to the RK73H1HTTC17R4F. Selection of this part ensures continuity within the KOA Speer RK73H series platform. The RK73H1HTTCM17R4F is ROHS3 compliant, AEC-Q200 rated, and maintains the same moisture-resistant thick film construction. This substitute is appropriate for applications requiring component consistency within a single manufacturer's product line.

AC0201FR-0717R4L (YAGEO)

The AC0201FR-0717R4L is a direct cross-reference substitute manufactured by YAGEO. This part satisfies all electrical and mechanical parameter requirements, including 17.4 Ohm resistance, ±1% tolerance, 0.05W power rating, 0201 package format, and ±200ppm/°C temperature coefficient. The AC0201FR-0717R4L carries AEC-Q200 automotive qualification, ROHS3 compliance, and moisture-resistant thick film construction. Significantly higher inventory availability (19720 Pcs) supports supply chain continuity. This substitute is appropriate for applications where multi-source component qualification is acceptable and supply chain resilience is a priority.

Both substitute parts are functionally and physically interchangeable with the RK73H1HTTC17R4F. Selection between these substitutes depends on procurement strategy, supply chain requirements, and design qualification protocols.

Frequently Asked Questions (FAQ)

Q: Can the RK73H1HTTCM17R4F be used as a direct replacement for the RK73H1HTTC17R4F?

A: Yes. The RK73H1HTTCM17R4F is the manufacturer-recommended substitute. Both parts share identical electrical specifications (17.4 Ohms ±1%, 0.05W), mechanical dimensions (0201 package), composition (thick film), temperature characteristics (±200ppm/°C, -55°C to 155°C), and compliance ratings (AEC-Q200, ROHS3). The primary difference is product status: RK73H1HTTCM17R4F is active, while RK73H1HTTC17R4F is not for new designs.

Q: Is the AC0201FR-0717R4L from YAGEO compatible with circuits designed for the RK73H1HTTC17R4F?

A: Yes. The AC0201FR-0717R4L meets all electrical and mechanical requirements for substitution. Resistance (17.4 Ohms ±1%), power rating (0.05W), package format (0201), temperature coefficient (±200ppm/°C), operating range (-55°C to 155°C), and automotive qualification (AEC-Q200) are identical. Physical dimensions and termination count match exactly. This part is suitable for direct circuit substitution.

Q: What are the key parameters that determine if a part can substitute for the RK73H1HTTC17R4F?

A: Substitution eligibility requires exact matching of: resistance value (17.4 Ohms), tolerance (±1%), power rating (0.05W), package format (0201), composition (thick film), temperature coefficient (±200ppm/°C), operating temperature range (-55°C to 155°C), physical dimensions (0.024" L x 0.012" W), and compliance certifications (AEC-Q200, ROHS3, MSL 1). Any deviation from these parameters disqualifies a part from substitution.

Q: Why is the AC0201FR-0717R4L listed as having higher inventory than the KOA Speer alternatives?

A: Inventory levels reflect current stock positions at the time of data collection. The AC0201FR-0717R4L (19720 Pcs) demonstrates broader market availability from YAGEO compared to KOA Speer alternatives. Higher inventory availability can support extended production runs and reduce lead time risk in supply chain planning.

Q: Are there any differences in moisture handling between the RK73H1HTTC17R4F and its substitutes?

A: No. All three parts carry Moisture Sensitivity Level (MSL) 1 (Unlimited), indicating unlimited shelf life without moisture control measures. All parts feature moisture-resistant thick film construction. Storage, handling, and moisture management protocols are identical across all three parts.

Q: Can these substitutes be used interchangeably in automotive applications?

A: Yes. All three parts carry AEC-Q200 automotive qualification, indicating compliance with automotive industry reliability and quality standards. They are suitable for automotive circuit applications where the RK73H1HTTC17R4F was originally specified.