RK73H1HTTC3000F Equivalent & Substitute Parts

Part Overview

The RK73H1HTTC3000F is a 300 Ohm ±1% 0.05W (1/20W) chip resistor in 0201 package (0603 Metric) manufactured by KOA Speer Electronics, Inc. This component features automotive AEC-Q200 qualification, moisture resistance, and thick film construction suitable for high-reliability applications. The part carries a "Not For New Designs" status, indicating it has been superseded in the manufacturer's product line. Identifying equivalent and substitute parts is necessary for design continuity, inventory management, and sourcing flexibility in production environments.

Substiute Parts

RK73H1HTTC3000F

KOA Speer Electronics, Inc.In Stock: 28677RK73H1HTTC3000F Datasheet

Current PartRFQ

RK73H1HTTCM3000F

KOA Speer Electronics, Inc.In Stock: 1042RK73H1HTTCM3000F Datasheet

MFR RecommendedRFQ

AC0201FR-07300RL

YAGEOIn Stock: 1122AC0201FR-07300RL Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the RK73H1HTTC3000F are qualified based on strict electrical and mechanical parameter matching:

Electrical Parameters (Must Match):

• Resistance value: 300 Ohms
• Tolerance: ±1%
• Power rating: 0.05W (1/20W)
• Temperature coefficient: ±200ppm/°C
• Operating temperature range: -55°C ~ 155°C

Mechanical Parameters (Must Match):

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

Compliance & Certification (Must Match):

• Automotive AEC-Q200 qualification
• RoHS3 compliance
• Moisture Sensitivity Level: MSL 1 (Unlimited)

Substitute parts meeting all these criteria are electrically and mechanically interchangeable without design modification or performance degradation.

Parameter Comparison

Engineering Selection Recommendations

RK73H1HTTCM3000F (MFR Recommended Substitute): This part is the manufacturer-recommended successor to the RK73H1HTTC3000F. It maintains identical electrical and mechanical specifications while carrying Active product status. The primary distinction is the absence of explicit moisture resistance specification in the datasheet, though all other compliance parameters remain equivalent. This part is the preferred choice for new production runs and design updates within the KOA Speer Electronics product family.

AC0201FR-07300RL (Direct Cross-Reference): This YAGEO component provides full electrical and mechanical equivalence to the main part, including explicit moisture resistance specification and AEC-Q200 automotive qualification. It carries Active product status and is suitable for applications requiring cross-manufacturer sourcing flexibility. The AC series from YAGEO meets all specified compliance requirements including RoHS3 and MSL 1 ratings.

Both substitute parts are qualified for direct replacement in existing designs without circuit modification or performance impact.

Frequently Asked Questions (FAQ)

Q: Can RK73H1HTTCM3000F be used as a direct replacement for RK73H1HTTC3000F?

A: Yes. Both parts share identical resistance (300 Ohms), tolerance (±1%), power rating (0.05W), package (0201), temperature coefficient (±200ppm/°C), operating temperature range (-55°C ~ 155°C), and automotive AEC-Q200 qualification. The primary difference is product status: the main part is "Not For New Designs" while the substitute is "Active." Electrical and mechanical interchangeability is complete.

Q: What is the difference between RK73H1HTTC3000F and AC0201FR-07300RL?

A: Both parts are electrically and mechanically identical in all critical parameters: 300 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. The primary difference is manufacturer: KOA Speer Electronics versus YAGEO. Both carry Active product status and full RoHS3 compliance. AC0201FR-07300RL explicitly specifies moisture resistance, matching the main part's specification.

Q: Are all three parts suitable for automotive applications?

A: Yes. All three parts carry AEC-Q200 automotive qualification, which certifies reliability and performance in automotive environments. This rating applies to RK73H1HTTC3000F, RK73H1HTTCM3000F, and AC0201FR-07300RL equally.

Q: What does "Not For New Designs" status mean for RK73H1HTTC3000F?

A: This status indicates the part has been superseded by newer alternatives in the manufacturer's product line. While existing inventory remains available and the part continues to function within specification, KOA Speer Electronics recommends using RK73H1HTTCM3000F for new design work. Existing designs using RK73H1HTTC3000F remain fully supported.

Q: Can I mix these parts in the same production batch?

A: Yes. All three parts meet identical electrical specifications (300 Ohms ±1%, 0.05W, ±200ppm/°C, -55°C ~ 155°C), mechanical dimensions (0201 package, 0.024" L x 0.012" W, 0.010" max height), and compliance requirements (AEC-Q200, RoHS3, MSL 1). They are functionally interchangeable and can be used interchangeably in the same circuit without performance differentiation.

Q: What is the significance of MSL 1 (Unlimited) rating?

A: MSL 1 (Moisture Sensitivity Level 1) with Unlimited designation indicates the component has minimal moisture sensitivity and requires no special moisture control during storage, handling, or assembly. These parts can be stored in standard industrial environments without desiccant packaging or humidity-controlled conditions.

Q: Are there any package or footprint differences between these parts?

A: No. All three parts use the 0201 (0603 Metric) package with identical physical dimensions: 0.024" length × 0.012" width (0.60mm × 0.30mm) and maximum seated height of 0.010" (0.26mm). PCB footprints and assembly processes are identical.