RK73G1HTTC4701F Equivalent & Substitute Parts

Part Overview

The RK73G1HTTC4701F is a 4.7 kOhms ±1% chip resistor manufactured by KOA Speer Electronics, Inc., rated at 0.05W (1/20W) in the 0201 (0603 Metric) package. This component is designed for automotive applications and meets AEC-Q200 qualification standards. The part is currently classified as "Not For New Designs," indicating it has been superseded in the manufacturer's product line. Identifying equivalent substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and transition to active product alternatives that meet identical electrical and mechanical specifications.

Substiute Parts

RK73G1HTTC4701F

KOA Speer Electronics, Inc.In Stock: 744RK73G1HTTC4701F Datasheet

Current PartRFQ

RK73G1HTTCM4701F

KOA Speer Electronics, Inc.In Stock: 932RK73G1HTTCM4701F Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RK73G1HTTC4701F is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Resistance value: 4.7 kOhms
• Tolerance: ±1%
• Power rating: 0.05W (1/20W)
• Temperature coefficient: ±50ppm/°C
• Operating temperature range: -55°C ~ 155°C

Mechanical Parameters:

• Package type: 0201 (0603 Metric)
• Number of terminations: 2
• Physical dimensions: 0.024" L x 0.012" W (0.60mm x 0.30mm)
• Maximum seated height: 0.010" (0.26mm)

Compliance & Certification:

• Automotive AEC-Q200 qualification
• ROHS3 compliance
• Moisture Sensitivity Level 1

A substitute part must match all electrical specifications, maintain identical package dimensions, and retain automotive qualification. Manufacturer series continuity (RK73G) and composition type (Thick Film) further define the substitution group.

Parameter Comparison

Engineering Selection Recommendations

The RK73G1HTTCM4701F is the direct substitute for the RK73G1HTTC4701F. Both components are manufactured by KOA Speer Electronics, Inc., within the RK73G series, and maintain identical electrical and mechanical specifications. The primary distinction is product status: the original part is classified as "Not For New Designs," while the substitute is designated as "Active."

For new designs and ongoing production, the RK73G1HTTCM4701F should be selected. This part maintains full compatibility with existing designs while ensuring access to current manufacturing and supply chain support. Both parts satisfy AEC-Q200 automotive qualification requirements and ROHS3 compliance mandates, making them suitable for automotive and industrial applications operating across the -55°C to 155°C temperature range.

The electrical performance, thermal characteristics, and physical form factor are identical between the two parts, ensuring direct substitution without circuit redesign or PCB layout modification.

Frequently Asked Questions (FAQ)

Q: Can the RK73G1HTTCM4701F be used as a direct replacement for the RK73G1HTTC4701F in existing designs?

A: Yes. The substitute part is electrically and mechanically identical. All critical parameters—resistance value, tolerance, power rating, temperature coefficient, operating temperature range, package dimensions, and automotive certification—are equivalent. Direct substitution is possible without design modification.

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

A: This designation indicates the RK73G1HTTC4701F has been superseded by the manufacturer and is no longer recommended for new product development. The RK73G1HTTCM4701F, marked as "Active," is the current production alternative and should be used for all new designs.

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

A: Both 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 (0.010" / 0.26mm). Moisture Sensitivity Level is 1 (Unlimited) for both, indicating no special moisture control requirements during storage or handling.

Q: Do both parts meet automotive qualification standards?

A: Yes. Both the RK73G1HTTC4701F and RK73G1HTTCM4701F are qualified to AEC-Q200 standards and are ROHS3 compliant, making them suitable for automotive applications.

Q: What is the inventory status of the substitute part?

A: The RK73G1HTTCM4701F has 862 pieces in stock as new original inventory, compared to 681 pieces of the original part. The substitute offers improved supply availability.

Q: Are there any electrical performance differences between the two parts?

A: No. Both parts have identical resistance (4.7 kOhms), tolerance (±1%), power rating (0.05W), temperature coefficient (±50ppm/°C), and operating temperature range (-55°C ~ 155°C). Electrical performance is equivalent.