RK73G1HTTC1003F Equivalent & Substitute Parts

Part Overview

The RK73G1HTTC1003F is a 100 kOhms ±1% thick film chip resistor manufactured by KOA Speer Electronics, Inc., rated for 0.05W (1/20W) power dissipation in a 0201 (0603 Metric) surface mount package. This component is qualified to the AEC-Q200 automotive standard and operates across the temperature range of -55°C to 155°C.

The RK73G1HTTC1003F carries a product status designation of "Not For New Designs," indicating that while the part remains available in inventory, KOA Speer Electronics has transitioned this model out of active production. For new design implementations and long-term supply chain stability, identification of an active equivalent part is necessary to ensure continued component availability and manufacturer support.

Substiute Parts

RK73G1HTTC1003F

KOA Speer Electronics, Inc.In Stock: 1107RK73G1HTTC1003F Datasheet

Current PartRFQ

RK73G1HTTCM1003F

KOA Speer Electronics, Inc.In Stock: 941RK73G1HTTCM1003F Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the RK73G1HTTC1003F is determined by strict equivalence across the following critical parameters:

Electrical Parameters:

• Resistance value: 100 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 qualification: AEC-Q200
• RoHS compliance: ROHS3
• Moisture sensitivity: MSL 1

A substitute part must match all electrical specifications, maintain identical package geometry, and retain all automotive and environmental certifications. The substitute part must be from the same manufacturer series (RK73G) to ensure process consistency and performance equivalence.

Parameter Comparison

Engineering Selection Recommendations

The RK73G1HTTCM1003F is the direct equivalent substitute for the RK73G1HTTC1003F. Both components are manufactured by KOA Speer Electronics within the RK73G series and share identical electrical, mechanical, and environmental specifications.

The primary distinction between these parts is product lifecycle status. The RK73G1HTTC1003F is designated "Not For New Designs," while the RK73G1HTTCM1003F maintains "Active" status. This designation indicates that KOA Speer Electronics continues to manufacture, support, and guarantee supply of the RK73G1HTTCM1003F for ongoing and future applications.

For new circuit designs, procurement of replacement inventory, or long-term production planning, the RK73G1HTTCM1003F is the appropriate selection. Both parts maintain full AEC-Q200 automotive qualification and ROHS3 compliance, ensuring compatibility with automotive and industrial applications requiring automotive-grade component certification.

Existing designs currently utilizing the RK73G1HTTC1003F may continue operation without modification, as the substitute part is electrically and mechanically identical. PCB layout, schematic references, and bill of materials may be updated to reflect the active equivalent part number for supply chain continuity.

Frequently Asked Questions (FAQ)

Q: Can the RK73G1HTTCM1003F be used as a direct replacement for the RK73G1HTTC1003F in existing designs?

A: Yes. The RK73G1HTTCM1003F is electrically and mechanically identical to the RK73G1HTTC1003F. Both components have identical resistance values (100 kOhms), tolerance (±1%), power rating (0.05W), package geometry (0201), and operating specifications. No circuit modifications or PCB layout changes are required.

Q: What does "Not For New Designs" mean for the RK73G1HTTC1003F?

A: This designation indicates that the manufacturer has transitioned this part number out of active production. While existing inventory remains available, KOA Speer Electronics does not recommend this part for new circuit designs. The RK73G1HTTCM1003F is the active equivalent and should be used for new applications.

Q: Are both parts qualified to the same automotive standards?

A: Yes. Both the RK73G1HTTC1003F and RK73G1HTTCM1003F carry AEC-Q200 automotive qualification and are ROHS3 compliant. They are suitable for automotive and industrial applications requiring automotive-grade component certification.

Q: Will the substitute part fit in the same PCB footprint?

A: Yes. Both parts use the identical 0201 (0603 Metric) package with dimensions of 0.024" L x 0.012" W (0.60mm x 0.30mm) and maximum seated height of 0.010" (0.26mm). No PCB redesign is necessary.

Q: What is the difference between the part numbers RK73G1HTTC1003F and RK73G1HTTCM1003F?

A: The part numbers differ only in the suffix designation (C versus CM). This suffix reflects the manufacturer's product lifecycle management and does not indicate a change in electrical or mechanical specifications. Both parts are from the same RK73G series and share identical performance characteristics.

Q: Is there a difference in moisture sensitivity between the two parts?

A: No. Both parts have Moisture Sensitivity Level (MSL) 1, which indicates unlimited shelf life and no special moisture control requirements during storage or handling.