Equivalent & Substitute Parts for RK73H1HTTC2803F

Part Overview

The RK73H1HTTC2803F is a 280 kOhms ±1% thick film chip resistor manufactured by KOA Speer Electronics, Inc., rated at 0.05W (1/20W) in a 0201 package (0603 metric). This component is designed for automotive applications with AEC-Q200 qualification and moisture-resistant construction. The part is currently active in production with 937 units in stock.

Substitute parts are identified when equivalent electrical and mechanical parameters are maintained across the same package specification, tolerance class, power rating, and automotive qualification standards. Alternative sources ensure supply chain flexibility and design continuity.

Substiute Parts

RK73H1HTTC2803F

KOA Speer Electronics, Inc.In Stock: 966RK73H1HTTC2803F Datasheet

Current PartRFQ

RK73H1HTTCM2803F

KOA Speer Electronics, Inc.In Stock: 1030RK73H1HTTCM2803F Datasheet

MFR RecommendedRFQ

AC0201FR-07280KL

YAGEOIn Stock: 1046AC0201FR-07280KL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RK73H1HTTC2803F is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Resistance value: 280 kOhms (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 ~ 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)

Compliance & Quality Parameters:

• Automotive rating: AEC-Q200 (exact match required)
• Moisture resistance: Yes (exact match required)
• RoHS Status: ROHS3 Compliant (exact match required)
• Moisture Sensitivity Level: MSL 1 (exact match required)

Identified substitute parts maintain all electrical, mechanical, and compliance specifications. Substitution does not require design verification or performance testing when parameters are identical.

Parameter Comparison

Engineering Selection Recommendations

Primary Selection: RK73H1HTTC2803F (KOA Speer Electronics, Inc.)

This is the specified main part number with full automotive AEC-Q200 qualification, moisture-resistant construction, and MSL 1 rating. All electrical and mechanical parameters are optimized for automotive applications requiring high reliability.

First Substitute: AC0201FR-07280KL (YAGEO)

This YAGEO part maintains complete electrical and mechanical equivalence with the main part, including moisture-resistant thick film construction and AEC-Q200 automotive qualification. All critical parameters are identical. This part is suitable for direct substitution in automotive designs.

Secondary Substitute: RK73H1HTTCM2803F (KOA Speer Electronics, Inc.)

This KOA variant maintains electrical equivalence and automotive AEC-Q200 qualification. However, moisture-resistant construction is not specified for this variant. Selection of this part requires confirmation that moisture resistance is not a design requirement for the application.

All substitute parts carry ROHS3 compliance and MSL 1 ratings, ensuring compatibility with modern manufacturing and storage requirements.

Frequently Asked Questions (FAQ)

Q: Can RK73H1HTTCM2803F be used as a direct replacement for RK73H1HTTC2803F?

A: RK73H1HTTCM2803F maintains all electrical parameters and automotive AEC-Q200 qualification. However, moisture-resistant construction is not specified for this variant. If moisture resistance is required by the application, this part is not suitable. If moisture resistance is not a design requirement, this part is electrically equivalent.

Q: Is AC0201FR-07280KL from YAGEO fully compatible with the KOA RK73H1HTTC2803F?

A: Yes. AC0201FR-07280KL maintains identical electrical specifications (280 kOhms ±1%, 0.05W), mechanical package (0201), composition (thick film), temperature coefficient (±200ppm/°C), operating range (-55°C ~ 155°C), and automotive qualification (AEC-Q200). Moisture-resistant construction is specified for both parts. Direct substitution is supported.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution requires exact equivalence in: resistance value (280 kOhms), tolerance (±1%), power rating (0.05W), package (0201), composition (thick film), temperature coefficient (±200ppm/°C), operating temperature range (-55°C ~ 155°C), AEC-Q200 automotive rating, moisture resistance, RoHS compliance, and MSL rating. Deviation in any parameter disqualifies substitution.

Q: Can these parts be used in non-automotive applications?

A: Yes. These parts exceed the requirements for non-automotive applications. AEC-Q200 qualification and automotive-grade construction provide enhanced reliability suitable for industrial, medical, and consumer applications.

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 supply chain management.

Q: Are all substitute parts in active production?

A: Yes. RK73H1HTTC2803F, RK73H1HTTCM2803F, and AC0201FR-07280KL are all listed as active products with current inventory availability.