RK73H1HTTC1504F Equivalent & Substitute Parts

Part Overview

The RK73H1HTTC1504F is a 1.5 MOhms ±1% thick film chip resistor in 0201 package (0603 Metric) rated for automotive applications under AEC-Q200 standard. This component features moisture-resistant construction with 0.05W power rating and operates across -55°C to 155°C temperature range.

The RK73H1HTTC1504F carries a "Not For New Designs" product status, indicating it has been superseded in the manufacturer's product line. Identifying equivalent substitute parts ensures design continuity and maintains supply chain reliability for existing applications or legacy system support.

Substiute Parts

RK73H1HTTC1504F

KOA Speer Electronics, Inc.In Stock: 38972RK73H1HTTC1504F Datasheet

Current PartRFQ

RK73H1HTTCM1504F

KOA Speer Electronics, Inc.In Stock: 1163RK73H1HTTCM1504F Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the RK73H1HTTC1504F is determined by strict equivalence across the following critical parameters:

Electrical Parameters: Resistance value (1.5 MOhms), tolerance (±1%), and power rating (0.05W) must be identical. Temperature coefficient (±200ppm/°C) and operating temperature range (-55°C to 155°C) establish thermal performance boundaries.

Mechanical Parameters: Package designation (0201/0603 Metric) and physical dimensions (0.024" L x 0.012" W, 0.010" max height) ensure PCB footprint compatibility and assembly process compatibility.

Compliance & Environmental: AEC-Q200 automotive rating, ROHS3 compliance, and MSL 1 classification are mandatory for applications requiring automotive-grade reliability and environmental standards adherence.

Composition: Thick film construction must be maintained to preserve electrical characteristics and temperature stability.

Substitute parts must match all parameters listed above without exception. Deviations in any single parameter disqualify a part from direct substitution.

Parameter Comparison

Engineering Selection Recommendations

The RK73H1HTTCM1504F serves as the direct substitute for the RK73H1HTTC1504F. Both components are manufactured by KOA Speer Electronics, Inc., and maintain identical electrical, mechanical, and environmental specifications.

The primary distinction is product lifecycle status: RK73H1HTTC1504F is designated "Not For New Designs," while RK73H1HTTCM1504F carries "Active" status. This indicates RK73H1HTTCM1504F represents the current production equivalent within the RK73H series.

Both parts satisfy AEC-Q200 automotive qualification, ROHS3 compliance, and MSL 1 moisture sensitivity requirements. Selection between these parts should be based on supply chain availability and design phase requirements. For ongoing production or new design initiatives, RK73H1HTTCM1504F is the appropriate choice due to its active product status and continued manufacturer support.

Frequently Asked Questions (FAQ)

Q: Can RK73H1HTTCM1504F replace RK73H1HTTC1504F in existing designs?

A: Yes. Both parts are electrically and mechanically identical across all specified parameters. The 0201 package footprint, 1.5 MOhms resistance, ±1% tolerance, and 0.05W power rating are equivalent. PCB layout and assembly processes require no modification.

Q: What is the significance of the "Not For New Designs" status on RK73H1HTTC1504F?

A: This designation indicates the part has been superseded in the manufacturer's active product portfolio. While existing inventory remains available, KOA Speer Electronics recommends RK73H1HTTCM1504F for new applications. Both parts maintain identical performance specifications.

Q: Are there differences in automotive compliance between these parts?

A: No. Both RK73H1HTTC1504F and RK73H1HTTCM1504F carry AEC-Q200 automotive qualification. Thermal performance, reliability ratings, and environmental stress testing compliance are equivalent.

Q: Does package designation affect substitution?

A: No. Both parts use identical 0201 (0603 Metric) packaging with matching physical dimensions (0.024" L x 0.012" W x 0.010" max height). Footprint compatibility is complete.

Q: What is the difference between RK73H1HTTC1504F and RK73H1HTTCM1504F part numbers?

A: The suffix variation (C versus CM) reflects internal manufacturer coding for product line differentiation. The electrical and mechanical specifications remain identical. This is a direct equivalent substitution within the RK73H series.

Q: Are moisture sensitivity levels the same?

A: Yes. Both parts are classified as MSL 1 (Unlimited), indicating no moisture sensitivity restrictions. Storage and handling requirements are identical.