RK73G1HTTC3003D Equivalent & Substitute Parts

Part Overview

The RK73G1HTTC3003D is a 300 kOhms ±0.5% thick film chip resistor manufactured by KOA Speer Electronics, Inc. in the 0201 (0603 Metric) package format. This component is rated for automotive applications under AEC-Q200 standards with a power rating of 0.05W (1/20W) and operates across the temperature range of -55°C to 155°C.

The RK73G1HTTC3003D carries a product status designation of "Not For New Designs," indicating that this part number is obsolete or being phased out. Identifying equivalent substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support existing inventory management for applications currently utilizing this component.

Substiute Parts

RK73G1HTTC3003D

KOA Speer Electronics, Inc.In Stock: 726RK73G1HTTC3003D Datasheet

Current PartRFQ

RK73G1HTTCM3003D

KOA Speer Electronics, Inc.In Stock: 763RK73G1HTTCM3003D Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RK73G1HTTC3003D is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Resistance value: 300 kOhms (exact match required)
• Tolerance: ±0.5% (exact match required)
• Power rating: 0.05W / 1/20W (exact match required)
• Temperature coefficient: ±50ppm/°C (exact match required)
• Operating temperature range: -55°C to 155°C (exact match required)

Mechanical Parameters:

• Package format: 0201 (0603 Metric) (exact match required)
• Composition: Thick Film (exact match required)

Compliance & Certification:

• Automotive rating: AEC-Q200 (exact match required)
• RoHS compliance: ROHS3 Compliant (exact match required)
• Moisture sensitivity: MSL 1 (exact match required)

Substitute parts must satisfy all parameters listed above without deviation. The primary distinction between the main part and its substitute relates to product lifecycle status and packaging designation.

Parameter Comparison

Engineering Selection Recommendations

The RK73G1HTTCM3003D is the direct equivalent substitute for the RK73G1HTTC3003D. Both components are manufactured by KOA Speer Electronics, Inc. within the RK73G series and maintain identical electrical, mechanical, and compliance specifications.

The primary distinction between these part numbers is product lifecycle status. The RK73G1HTTC3003D is designated "Not For New Designs," while the RK73G1HTTCM3003D carries an "Active" product status. This designation indicates that the RK73G1HTTCM3003D represents the current production equivalent and is the recommended selection for ongoing applications.

Both parts satisfy AEC-Q200 automotive qualification requirements, ROHS3 compliance, and MSL 1 moisture sensitivity classification. Electrical performance, thermal characteristics, and mechanical compatibility are identical across both part numbers, ensuring direct substitution without circuit redesign or validation modifications.

Frequently Asked Questions (FAQ)

Q: Can the RK73G1HTTCM3003D be used as a direct replacement for the RK73G1HTTC3003D?

A: Yes. Both components are electrically and mechanically identical. The RK73G1HTTCM3003D is the active production equivalent and provides direct substitution without any circuit modifications or performance changes.

Q: What is the significance of the "Not For New Designs" status on the RK73G1HTTC3003D?

A: This designation indicates the part is in end-of-life phase and is no longer recommended for new circuit designs. The RK73G1HTTCM3003D should be selected for new applications to ensure long-term supply availability and manufacturing support.

Q: Are there any differences in the 0201 package specifications between these two part numbers?

A: No. Both components use the identical 0201 (0603 Metric) package format with matching physical dimensions: 0.024" L x 0.012" W (0.60mm x 0.30mm) and maximum seated height of 0.010" (0.26mm).

Q: Do both parts meet automotive AEC-Q200 requirements?

A: Yes. Both the RK73G1HTTC3003D and RK73G1HTTCM3003D are rated to AEC-Q200 automotive standards with identical operating temperature ranges of -55°C to 155°C and temperature coefficient of ±50ppm/°C.

Q: What is the tolerance specification for these resistors?

A: Both parts maintain a tolerance of ±0.5% on the 300 kOhms resistance value, ensuring precise circuit performance in applications requiring tight tolerance specifications.

Q: Are these components RoHS compliant?

A: Yes. Both the RK73G1HTTC3003D and RK73G1HTTCM3003D are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity classification, indicating no moisture sensitivity restrictions during storage or handling.