Equivalent & Substitute Parts for RK73H1HTTC53R6F

Part Overview

The RK73H1HTTC53R6F is a 53.6 Ohm ±1% thick film chip resistor manufactured by KOA Speer Electronics, Inc., rated at 0.05W (1/20W) in a 0201 package (0.60mm x 0.30mm metric). This component is qualified to AEC-Q200 automotive standards and features moisture-resistant construction suitable for automotive and industrial applications operating across -55°C to 155°C.

The RK73H1HTTC53R6F carries a "Not For New Designs" product status. Identifying equivalent and substitute parts is necessary to support existing designs, manage supply chain continuity, and ensure component availability for production and maintenance applications.

Substiute Parts

RK73H1HTTC53R6F

KOA Speer Electronics, Inc.In Stock: 914RK73H1HTTC53R6F Datasheet

Current PartRFQ

RK73H1HTTCM53R6F

KOA Speer Electronics, Inc.In Stock: 692RK73H1HTTCM53R6F Datasheet

MFR RecommendedRFQ

AC0201FR-0753R6L

YAGEOIn Stock: 933AC0201FR-0753R6L Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RK73H1HTTC53R6F are qualified based on the following electrical and mechanical parameters:

Critical Matching Parameters:

• Resistance value: 53.6 Ohms
• 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 qualification: AEC-Q200
• Moisture resistance: Required
• RoHS compliance: ROHS3 Compliant
• MSL rating: 1 (Unlimited)

All identified substitute parts meet these parameters and are therefore electrically and mechanically interchangeable with the RK73H1HTTC53R6F in applications requiring these specifications.

Parameter Comparison

Engineering Selection Recommendations

RK73H1HTTCM53R6F (KOA Speer Electronics, Inc.) - MFR Recommended Substitute:

This part is the manufacturer-recommended equivalent from KOA Speer Electronics, Inc. It maintains identical electrical specifications and package dimensions as the RK73H1HTTC53R6F. The primary distinction is active product status versus the legacy "Not For New Designs" status of the original part. This substitute carries ROHS3 compliance and AEC-Q200 automotive qualification. Note that moisture-resistant construction is not specified for this variant, which may be a consideration for applications requiring enhanced moisture protection.

AC0201FR-0753R6L (YAGEO) - Direct Manufacturer Substitute:

This YAGEO component provides full electrical and mechanical equivalence to the RK73H1HTTC53R6F. It maintains the 53.6 Ohm resistance, ±1% tolerance, 0.05W power rating, and 0201 package specification. The AC0201FR-0753R6L includes moisture-resistant construction and AEC-Q200 automotive qualification, matching the environmental protection features of the original part. This part carries active product status and ROHS3 compliance.

Both substitute parts are suitable for direct replacement in existing designs. Selection between them should be based on supply chain availability, lead time requirements, and any specific design preferences regarding manufacturer sourcing.

Frequently Asked Questions (FAQ)

Q: Can RK73H1HTTCM53R6F be used as a direct replacement for RK73H1HTTC53R6F?

A: Yes. Both parts are manufactured by KOA Speer Electronics, Inc., and share identical electrical parameters (53.6 Ohms ±1%, 0.05W), package dimensions (0201), temperature coefficient (±200ppm/°C), operating range (-55°C ~ 155°C), and AEC-Q200 automotive qualification. The primary difference is product status; RK73H1HTTCM53R6F is active while RK73H1HTTC53R6F is not for new designs. One distinction is that moisture-resistant construction is specified for RK73H1HTTC53R6F but not explicitly stated for RK73H1HTTCM53R6F.

Q: Is AC0201FR-0753R6L compatible with RK73H1HTTC53R6F in automotive applications?

A: Yes. AC0201FR-0753R6L meets all critical parameters: 53.6 Ohm resistance, ±1% tolerance, 0.05W power rating, 0201 package, ±200ppm/°C temperature coefficient, -55°C ~ 155°C operating range, and AEC-Q200 automotive qualification. It includes moisture-resistant construction and ROHS3 compliance, matching the environmental specifications of the original part.

Q: What are the key parameters that determine substitutability for this resistor?

A: Substitutability is determined by: resistance value (53.6 Ohms), tolerance (±1%), power rating (0.05W), package type (0201), composition (thick film), temperature coefficient (±200ppm/°C), operating temperature range (-55°C ~ 155°C), AEC-Q200 automotive qualification, moisture resistance, RoHS compliance (ROHS3), and MSL rating (1). All substitute parts must match these specifications.

Q: Are there packaging differences between these parts?

A: All three parts use the 0201 package (0.60mm x 0.30mm metric), with identical physical dimensions (0.024" L x 0.012" W) and maximum seated height (0.010"). They are mechanically interchangeable on PCBs designed for 0201 components.

Q: What is the significance of the "Not For New Designs" status?

A: This status indicates that RK73H1HTTC53R6F is a legacy component no longer recommended for new product development. However, it remains suitable for supporting existing designs and production. The substitute parts RK73H1HTTCM53R6F and AC0201FR-0753R6L carry active status, making them preferred choices for ongoing production and future applications.