RK73G1HTTC5602F Equivalent & Substitute Parts

Part Overview

The RK73G1HTTC5602F is a 56 kOhms ±1% thick film chip resistor manufactured by KOA Speer Electronics, Inc., rated at 0.05W (1/20W) power dissipation in a 0201 (0603 Metric) surface mount package. This component is designed for automotive applications and meets AEC-Q200 qualification standards.

The RK73G1HTTC5602F carries a product status designation of "Not For New Designs," indicating that while the part remains available in inventory (810 Pcs), KOA Speer Electronics has transitioned this model out of active production. For new design implementations and long-term supply chain stability, identifying an active equivalent part is necessary to ensure continued component availability and manufacturer support.

Substiute Parts

RK73G1HTTC5602F

KOA Speer Electronics, Inc.In Stock: 865RK73G1HTTC5602F Datasheet

Current PartRFQ

RK73G1HTTCM5602F

KOA Speer Electronics, Inc.In Stock: 1211RK73G1HTTCM5602F Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RK73G1HTTC5602F is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Resistance value: 56 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 type: 0201 (0603 Metric) (exact match required)
• Composition: Thick Film (exact match required)

Compliance & Certification:

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

A substitute part must satisfy all electrical, mechanical, and compliance parameters without deviation. The RK73G1HTTCM5602F meets all substitution criteria as an active production equivalent.

Parameter Comparison

Engineering Selection Recommendations

The RK73G1HTTCM5602F is the direct active equivalent for the RK73G1HTTC5602F. Both parts are manufactured by KOA Speer Electronics within the RK73G series and share identical electrical specifications, mechanical dimensions, and automotive compliance certifications.

For New Designs: The RK73G1HTTCM5602F should be selected as the primary component choice. This part carries an "Active" product status designation, ensuring ongoing manufacturer support, continued production, and long-term supply chain availability. The substitute part maintains 1159 units in current inventory, providing superior stock availability compared to the legacy part.

For Existing Designs: The RK73G1HTTC5602F remains functionally interchangeable with RK73G1HTTCM5602F at the circuit level. Both parts satisfy identical electrical performance requirements, thermal specifications, and automotive qualification standards. The "Not For New Designs" status of the original part does not affect its performance in existing applications; however, design migration to the active equivalent is recommended for future production runs to maintain supply chain continuity.

Compliance Verification: Both parts maintain ROHS3 compliance, AEC-Q200 automotive qualification, and MSL 1 moisture sensitivity rating. No additional compliance documentation or testing is required when transitioning between these parts.

Frequently Asked Questions (FAQ)

Q: Can RK73G1HTTCM5602F be used as a direct replacement for RK73G1HTTC5602F in existing circuit designs?

A: Yes. The RK73G1HTTCM5602F is electrically and mechanically identical to the RK73G1HTTC5602F. Both parts deliver 56 kOhms ±1% resistance at 0.05W power rating in a 0201 package with identical temperature coefficients and operating ranges. No circuit modifications or re-qualification is required.

Q: What does "Not For New Designs" mean for the RK73G1HTTC5602F?

A: This designation indicates that KOA Speer Electronics has discontinued active production of this part number. While existing inventory remains available, the manufacturer no longer recommends this part for new product development. The RK73G1HTTCM5602F is the active production equivalent.

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

A: Both parts are supplied in 0201 (0603 Metric) surface mount packages with identical physical dimensions: 0.024" L x 0.012" W (0.60mm x 0.30mm) and maximum seated height of 0.010" (0.26mm). They are mechanically interchangeable on PCB layouts.

Q: Do both parts meet automotive qualification requirements?

A: Yes. Both the RK73G1HTTC5602F and RK73G1HTTCM5602F carry AEC-Q200 automotive qualification ratings. Both are suitable for automotive applications requiring this certification standard.

Q: What is the difference in inventory availability?

A: The RK73G1HTTC5602F has 810 units in stock, while the RK73G1HTTCM5602F has 1159 units available. The active equivalent part offers higher current inventory levels.

Q: Are there any RoHS or environmental compliance differences?

A: No. Both parts are ROHS3 compliant and REACH unaffected. They carry identical environmental compliance certifications and can be used interchangeably in applications requiring these standards.

Q: Can I mix these two part numbers in the same production batch?

A: Yes. Since both parts are electrically and mechanically identical with matching compliance certifications, they can be used interchangeably within the same assembly. However, for supply chain consistency and traceability, using a single active part number (RK73G1HTTCM5602F) is recommended for new production runs.