RK73G1HTTC3301F Equivalent & Substitute Parts

Part Overview

The RK73G1HTTC3301F is a 3.3 kOhms ±1% chip resistor manufactured by KOA Speer Electronics, Inc., designed for automotive applications with AEC-Q200 qualification. This 0201 (0603 Metric) thick film resistor delivers 0.05W power rating in a compact surface-mount package suitable for high-density circuit boards.

The RK73G1HTTC3301F carries a "Not For New Designs" product status, indicating that KOA Speer Electronics has transitioned this part to end-of-life phase. Identifying qualified substitute parts ensures design continuity, maintains supply chain reliability, and supports long-term production requirements for existing applications utilizing this resistor specification.

Substiute Parts

RK73G1HTTC3301F

KOA Speer Electronics, Inc.In Stock: 698RK73G1HTTC3301F Datasheet

Current PartRFQ

RK73G1HTTCM3301F

KOA Speer Electronics, Inc.In Stock: 856RK73G1HTTCM3301F Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RK73G1HTTC3301F is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Resistance value: 3.3 kOhms (exact match required)
• Tolerance: ±1% (exact match required)
• Power rating: 0.05W / 1/20W (exact match required)
• Temperature coefficient: ±50ppm/°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)

Compliance & Certification:

• Automotive AEC-Q200 qualification (required for automotive applications)
• RoHS3 compliance (required for regulatory conformance)
• Moisture Sensitivity Level 1 (required for storage and handling compatibility)

Substitute parts must satisfy all parameters listed above. Parts meeting these criteria are functionally and mechanically interchangeable within the original application circuit.

Parameter Comparison

Engineering Selection Recommendations

The RK73G1HTTCM3301F is the qualified substitute for the RK73G1HTTC3301F based on the following engineering criteria:

Product Status Alignment: The substitute part carries "Active" product status, ensuring ongoing manufacturer support, continued availability, and compliance with current production standards. The main part's "Not For New Designs" designation indicates end-of-life transition, making the active substitute the appropriate selection for sustained production.

Electrical & Mechanical Equivalence: All electrical parameters (resistance, tolerance, power rating, temperature coefficient, operating temperature range) and mechanical parameters (package, composition, dimensions, termination count) are identical between the main part and substitute. This equivalence ensures direct interchangeability without circuit redesign or board layout modification.

Compliance & Certification: Both parts maintain identical AEC-Q200 automotive qualification, ROHS3 compliance, and Moisture Sensitivity Level 1 rating. These certifications satisfy automotive industry requirements and regulatory mandates without additional qualification testing.

Supply Chain Continuity: The substitute part maintains availability (760 Pcs in stock versus 618 Pcs for the main part), supporting uninterrupted production schedules and reducing supply chain risk.

Frequently Asked Questions (FAQ)

Q: Can RK73G1HTTCM3301F be used as a direct replacement for RK73G1HTTC3301F in existing designs?

A: Yes. The substitute part is electrically and mechanically identical across all specified parameters. No circuit redesign, board layout modification, or component qualification testing is required. Direct substitution is supported for all applications currently using the main part.

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

A: This designation indicates that KOA Speer Electronics has transitioned the RK73G1HTTC3301F to end-of-life phase and is no longer recommending it for new circuit designs. The active substitute part (RK73G1HTTCM3301F) represents the current production equivalent and should be specified for new applications.

Q: Are there any differences in packaging between these two parts?

A: Both parts use identical 0201 (0603 Metric) package specifications with matching dimensions (0.024" L x 0.012" W / 0.60mm x 0.30mm) and maximum seated height (0.010" / 0.26mm). Packaging compatibility is complete.

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

A: Yes. Both the main part and substitute carry AEC-Q200 automotive qualification, ensuring compliance with automotive industry reliability and quality standards.

Q: What is the Moisture Sensitivity Level, and does it affect handling?

A: Both parts carry Moisture Sensitivity Level 1 (Unlimited), indicating no moisture sensitivity restrictions. Standard component handling procedures apply without special moisture control requirements.

Q: Are there any compliance or regulatory differences between these parts?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and carry identical ECCN (EAR99) and HTSUS (8533.21.0030) classifications. Regulatory and compliance status is equivalent.

Q: Can the substitute part be used in high-temperature automotive applications?

A: Yes. The substitute maintains the identical operating temperature range of -55°C ~ 155°C and ±50ppm/°C temperature coefficient as the main part, supporting full automotive temperature extremes.