RK73H1HTTC5900F Equivalent & Substitute Parts

Part Overview

The RK73H1HTTC5900F is a 590 Ohm ±1% thick film chip resistor manufactured by KOA Speer Electronics, Inc., rated at 0.05W (1/20W) in a 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 in active production status with 736 units in stock. Substitute parts are identified when equivalent electrical specifications, mechanical dimensions, and automotive compliance ratings are maintained across alternative manufacturers or product variants.

Substiute Parts

RK73H1HTTC5900F

KOA Speer Electronics, Inc.In Stock: 777RK73H1HTTC5900F Datasheet

Current PartRFQ

RK73H1HTTCM5900F

KOA Speer Electronics, Inc.In Stock: 853RK73H1HTTCM5900F Datasheet

MFR RecommendedRFQ

AC0201FR-07590RL

YAGEOIn Stock: 1005AC0201FR-07590RL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RK73H1HTTC5900F are qualified based on the following criteria:

Electrical Parameters: Resistance value (590 Ohms), tolerance (±1%), power rating (0.05W), and temperature coefficient (±200ppm/°C) must be identical.

Mechanical Parameters: Package type (0201 / 0603 Metric), physical dimensions (0.024" L x 0.012" W / 0.60mm x 0.30mm), and seated height (0.010" / 0.26mm maximum) must match exactly.

Compliance & Ratings: AEC-Q200 automotive qualification, RoHS3 compliance, and MSL 1 moisture sensitivity level are required for all substitutes.

Composition: Thick film construction is maintained across all qualified substitutes.

Substitutes are grouped into two categories: manufacturer variants within the KOA Speer Electronics product line, and direct cross-manufacturer equivalents from alternative suppliers.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: RK73H1HTTC5900F remains the specified part with full moisture-resistant construction and active production status.

First Alternative: RK73H1HTTCM5900F is a KOA Speer Electronics variant within the same RK73H series. This substitute maintains all electrical and mechanical specifications, AEC-Q200 compliance, and RoHS3 status. The primary difference is the absence of moisture-resistant coating. Selection of this variant is appropriate when moisture resistance is not a circuit requirement and cost optimization is a consideration.

Cross-Manufacturer Equivalent: AC0201FR-07590RL from YAGEO provides direct functional equivalence with identical electrical parameters, package dimensions, temperature performance, and automotive compliance. This part includes moisture-resistant construction matching the original specification. Higher inventory availability (935 units) supports supply chain continuity.

All three parts maintain active production status and full compliance with automotive and environmental standards required for the application.

Frequently Asked Questions (FAQ)

Q: Can RK73H1HTTCM5900F be used as a direct replacement for RK73H1HTTC5900F?

A: RK73H1HTTCM5900F is electrically and mechanically equivalent with identical resistance, tolerance, power rating, package, temperature coefficient, and operating range. The difference is the absence of moisture-resistant coating in the variant. Substitution is valid when moisture resistance is not required by the circuit design or environmental conditions.

Q: What is the difference between the KOA variants and the YAGEO AC0201FR-07590RL?

A: All three parts share identical electrical specifications (590 Ohms ±1%, 0.05W, ±200ppm/°C, -55°C to 155°C), mechanical dimensions (0201 package), and automotive compliance (AEC-Q200, RoHS3, MSL 1). The primary difference is manufacturer. Both KOA RK73H1HTTC5900F and YAGEO AC0201FR-07590RL include moisture-resistant construction. Selection between manufacturers is based on supply availability, procurement agreements, and inventory management.

Q: Are all substitute parts qualified for automotive applications?

A: Yes. All listed substitutes carry AEC-Q200 automotive qualification, RoHS3 compliance, and MSL 1 moisture sensitivity rating, meeting automotive industry standards for reliability and environmental performance.

Q: Does package size differ between substitutes?

A: No. All 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). Direct PCB footprint compatibility is maintained across all substitutes.

Q: What is the significance of MSL 1 rating?

A: MSL 1 (Moisture Sensitivity Level 1) indicates unlimited shelf life without moisture bake-out requirements. These parts do not require special moisture control during storage or handling, simplifying logistics and inventory management.