Equivalent & Substitute Parts for RK73H1HTTC47R5F

Part Overview

The RK73H1HTTC47R5F is a 47.5 Ohm ±1% thick film chip resistor manufactured by KOA Speer Electronics, Inc., rated at 0.05W (1/20W) in the 0201 (0603 Metric) package. This component is designed for automotive applications and meets AEC-Q200 qualification standards with moisture-resistant construction. The part is currently classified as Not For New Designs, indicating it has been superseded. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production or maintenance of existing systems.

Substiute Parts

RK73H1HTTC47R5F

KOA Speer Electronics, Inc.In Stock: 37341RK73H1HTTC47R5F Datasheet

Current PartRFQ

RK73H1HTTCM47R5F

KOA Speer Electronics, Inc.In Stock: 1027RK73H1HTTCM47R5F Datasheet

MFR RecommendedRFQ

AC0201FR-0747R5L

YAGEOIn Stock: 1133AC0201FR-0747R5L Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RK73H1HTTC47R5F is determined by strict equivalence across the following electrical and mechanical parameters:

Critical Substitution Criteria:

• Resistance value: 47.5 Ohms (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 qualification: AEC-Q200 (exact match required)
• Moisture resistance: Required for equivalent substitution
• RoHS compliance: ROHS3 Compliant (exact match required)

Substitute parts must satisfy all criteria listed above. Deviations in any parameter disqualify a part from direct substitution.

Parameter Comparison

Engineering Selection Recommendations

RK73H1HTTCM47R5F (KOA Speer Electronics, Inc. - MFR Recommended): This part is the manufacturer-recommended successor from KOA Speer Electronics, Inc. It maintains identical electrical specifications and package configuration as the main part. The primary distinction is active product status, indicating ongoing manufacturing and supply availability. However, moisture resistance is not explicitly specified for this variant, which may be a consideration for applications requiring confirmed moisture protection. This option is preferred for designs requiring continuity within the KOA Speer product line.

AC0201FR-0747R5L (YAGEO - Direct Substitute): This YAGEO component provides full electrical and mechanical equivalence to the RK73H1HTTC47R5F, including explicit moisture-resistant construction. It carries active product status with confirmed AEC-Q200 automotive qualification and ROHS3 compliance. This part is suitable for direct substitution in applications where cross-manufacturer sourcing is acceptable. The AC series from YAGEO is established in automotive supply chains and offers alternative supply security.

Both substitute parts satisfy all critical substitution criteria and are suitable for direct replacement based on provided specifications and compliance certifications.

Frequently Asked Questions (FAQ)

Q: Can RK73H1HTTCM47R5F be used as a direct replacement for RK73H1HTTC47R5F? A: RK73H1HTTCM47R5F matches all electrical parameters (47.5 Ohms ±1%, 0.05W, ±200ppm/°C, -55°C ~ 155°C) and package specifications (0201 / 0603 Metric). Both are AEC-Q200 qualified and ROHS3 compliant. However, moisture resistance is not explicitly specified for the RK73H1HTTCM47R5F variant, whereas the original part includes moisture-resistant construction. Confirm moisture resistance requirements for your application before selection.

Q: Is AC0201FR-0747R5L a suitable substitute for RK73H1HTTC47R5F? A: Yes. AC0201FR-0747R5L provides complete electrical equivalence (47.5 Ohms ±1%, 0.05W, ±200ppm/°C, -55°C ~ 155°C) and identical package configuration (0201 / 0603 Metric). Both parts are AEC-Q200 qualified, ROHS3 compliant, and include moisture-resistant construction. The primary difference is manufacturer (YAGEO vs. KOA Speer), which does not affect functional compatibility.

Q: What are the critical parameters that determine substitution eligibility? A: Substitution requires exact matching of: resistance value (47.5 Ohms), tolerance (±1%), power rating (0.05W / 1/20W), package type (0201 / 0603 Metric), composition (thick film), temperature coefficient (±200ppm/°C), operating temperature range (-55°C ~ 155°C), AEC-Q200 automotive qualification, and RoHS compliance (ROHS3). Deviations in any parameter disqualify a part from direct substitution.

Q: Why is the main part marked "Not For New Designs"? A: This designation indicates the RK73H1HTTC47R5F has been superseded in the manufacturer's product line. The recommended alternative is RK73H1HTTCM47R5F. For new designs, selection of an active product status part (either the manufacturer-recommended variant or the YAGEO equivalent) is appropriate to ensure long-term supply continuity and manufacturing support.

Q: Are there any differences in packaging between these parts? A: All three parts use the 0201 (0603 Metric) package with identical physical dimensions: 0.024" L x 0.012" W (0.60mm x 0.30mm) and maximum seated height of 0.010" (0.26mm). The main part and AC0201FR-0747R5L are supplied in Tape & Reel (TR) format. Packaging format for RK73H1HTTCM47R5F is not specified in available data.

Q: What compliance certifications apply to all substitute parts? A: All three parts are ROHS3 compliant, AEC-Q200 qualified for automotive applications, REACH unaffected, and classified under ECCN EAR99. Moisture Sensitivity Level is 1 (Unlimited) for all parts, indicating no special moisture handling requirements during storage or assembly.